P: 002b:00007ffdefc14bf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 166.484375][ T5960] RAX: 0000000000000000 RBX: 00007f3ff0013d7d RCX: 00007f3feff90a77
[ 166.484388][ T5960] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdefc14cb0
[ 166.484400][ T5960] RBP: 00007ffdefc14cb0 R08: 0000000000000000 R09: 0000000000000000
[ 166.484410][ T5960] R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffdefc15d40
[ 166.484422][ T5960] R13: 00007f3ff0013d7d R14: 000000000002899e R15: 00007ffdefc15d80
[ 166.484455][ T5960]
[ 166.484462][ T5960] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 166.552524][ T50] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 166.656099][ T50] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 166.909378][ T5044] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 166.938531][ T5044] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 166.973544][ T2048] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 166.983323][ T2048] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 167.255763][ T6127] loop4: detected capacity change from 0 to 32768
[ 167.349081][ T6127] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 167.379052][ T6127] CPU: 1 UID: 0 PID: 6127 Comm: syz.4.21 Not tainted syzkaller #0 PREEMPT(full)
[ 167.379080][ T6127] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 167.379092][ T6127] Call Trace:
[ 167.379100][ T6127]
[ 167.379109][ T6127] dump_stack_lvl+0x189/0x250
[ 167.379141][ T6127] ? __pfx_dump_stack_lvl+0x10/0x10
[ 167.379164][ T6127] ? __pfx__printk+0x10/0x10
[ 167.379198][ T6127] ? kernfs_path_from_node+0x250/0x290
[ 167.379218][ T6127] ? kernfs_path_from_node+0x2f/0x290
[ 167.379242][ T6127] sysfs_create_dir_ns+0x259/0x280
[ 167.379265][ T6127] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 167.379288][ T6127] ? do_raw_spin_unlock+0x122/0x240
[ 167.379320][ T6127] kobject_add_internal+0x6ab/0xcc0
[ 167.379351][ T6127] kobject_init_and_add+0x125/0x190
[ 167.379378][ T6127] ? __pfx_kobject_init_and_add+0x10/0x10
[ 167.379400][ T6127] ? __raw_spin_lock_init+0x45/0x100
[ 167.379428][ T6127] ? __init_swait_queue_head+0xa9/0x150
[ 167.379456][ T6127] gfs2_sys_fs_add+0x234/0x450
[ 167.379484][ T6127] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 167.379518][ T6127] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 167.379560][ T6127] gfs2_fill_super+0x1388/0x21b0
[ 167.379597][ T6127] ? __pfx_gfs2_fill_super+0x10/0x10
[ 167.379621][ T6127] ? sb_set_blocksize+0x155/0x240
[ 167.379645][ T6127] ? setup_bdev_super+0x4c1/0x5b0
[ 167.379670][ T6127] get_tree_bdev_flags+0x40e/0x4d0
[ 167.379688][ T6127] ? __pfx_gfs2_fill_super+0x10/0x10
[ 167.379717][ T6127] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 167.379734][ T6127] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 167.379773][ T6127] gfs2_get_tree+0x51/0x1e0
[ 167.379794][ T6127] vfs_get_tree+0x92/0x2a0
[ 167.379816][ T6127] do_new_mount+0x302/0xa10
[ 167.379838][ T6127] ? apparmor_capable+0x137/0x1a0
[ 167.379868][ T6127] ? __pfx_do_new_mount+0x10/0x10
[ 167.379891][ T6127] ? ns_capable+0x8a/0xf0
[ 167.379912][ T6127] ? kmem_cache_free+0x197/0x620
[ 167.379940][ T6127] __se_sys_mount+0x313/0x410
[ 167.379966][ T6127] ? __pfx___se_sys_mount+0x10/0x10
[ 167.379989][ T6127] ? do_syscall_64+0xbe/0xf80
[ 167.380003][ T6127] ? __x64_sys_mount+0x20/0xc0
[ 167.380023][ T6127] do_syscall_64+0xfa/0xf80
[ 167.380041][ T6127] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 167.380060][ T6127] ? clear_bhb_loop+0x60/0xb0
[ 167.380083][ T6127] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 167.380100][ T6127] RIP: 0033:0x7f32fc990eea
[ 167.380118][ T6127] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 167.380132][ T6127] RSP: 002b:00007f32fd8fce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 167.380153][ T6127] RAX: ffffffffffffffda RBX: 00007f32fd8fcef0 RCX: 00007f32fc990eea
[ 167.380166][ T6127] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f32fd8fceb0
[ 167.380179][ T6127] RBP: 00002000000124c0 R08: 00007f32fd8fcef0 R09: 0000000000000000
[ 167.380191][ T6127] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 167.380202][ T6127] R13: 00007f32fd8fceb0 R14: 0000000000012588 R15: 0000200000000000
[ 167.380236][ T6127]
[ 167.380316][ T6127] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 167.723631][ T6127] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 168.018272][ T6131] loop1: detected capacity change from 0 to 32768
[ 168.088846][ T6131] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 168.175928][ T6131] CPU: 1 UID: 0 PID: 6131 Comm: syz.1.18 Not tainted syzkaller #0 PREEMPT(full)
[ 168.175957][ T6131] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 168.175968][ T6131] Call Trace:
[ 168.175981][ T6131]
[ 168.175989][ T6131] dump_stack_lvl+0x189/0x250
[ 168.176020][ T6131] ? __pfx_dump_stack_lvl+0x10/0x10
[ 168.176042][ T6131] ? __pfx__printk+0x10/0x10
[ 168.176073][ T6131] ? kernfs_path_from_node+0x250/0x290
[ 168.176093][ T6131] ? kernfs_path_from_node+0x2f/0x290
[ 168.176118][ T6131] sysfs_create_dir_ns+0x259/0x280
[ 168.176142][ T6131] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 168.176165][ T6131] ? do_raw_spin_unlock+0x122/0x240
[ 168.176197][ T6131] kobject_add_internal+0x6ab/0xcc0
[ 168.176229][ T6131] kobject_init_and_add+0x125/0x190
[ 168.176257][ T6131] ? __pfx_kobject_init_and_add+0x10/0x10
[ 168.176280][ T6131] ? __raw_spin_lock_init+0x45/0x100
[ 168.176309][ T6131] ? __init_swait_queue_head+0xa9/0x150
[ 168.176338][ T6131] gfs2_sys_fs_add+0x234/0x450
[ 168.176367][ T6131] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 168.176402][ T6131] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 168.176444][ T6131] gfs2_fill_super+0x1388/0x21b0
[ 168.176482][ T6131] ? __pfx_gfs2_fill_super+0x10/0x10
[ 168.176506][ T6131] ? sb_set_blocksize+0x155/0x240
[ 168.176531][ T6131] ? setup_bdev_super+0x4c1/0x5b0
[ 168.176567][ T6131] get_tree_bdev_flags+0x40e/0x4d0
[ 168.176586][ T6131] ? __pfx_gfs2_fill_super+0x10/0x10
[ 168.176605][ T6131] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 168.176622][ T6131] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 168.176662][ T6131] gfs2_get_tree+0x51/0x1e0
[ 168.176685][ T6131] vfs_get_tree+0x92/0x2a0
[ 168.176715][ T6131] do_new_mount+0x302/0xa10
[ 168.176737][ T6131] ? apparmor_capable+0x137/0x1a0
[ 168.176768][ T6131] ? __pfx_do_new_mount+0x10/0x10
[ 168.176791][ T6131] ? ns_capable+0x8a/0xf0
[ 168.176815][ T6131] ? kmem_cache_free+0x197/0x620
[ 168.176848][ T6131] __se_sys_mount+0x313/0x410
[ 168.176879][ T6131] ? __pfx___se_sys_mount+0x10/0x10
[ 168.176908][ T6131] ? do_syscall_64+0xbe/0xf80
[ 168.176924][ T6131] ? __x64_sys_mount+0x20/0xc0
[ 168.176950][ T6131] do_syscall_64+0xfa/0xf80
[ 168.176969][ T6131] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 168.176988][ T6131] ? clear_bhb_loop+0x60/0xb0
[ 168.177012][ T6131] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 168.177030][ T6131] RIP: 0033:0x7f3224590eea
[ 168.177049][ T6131] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 168.177064][ T6131] RSP: 002b:00007f32254dde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 168.177086][ T6131] RAX: ffffffffffffffda RBX: 00007f32254ddef0 RCX: 00007f3224590eea
[ 168.177099][ T6131] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f32254ddeb0
[ 168.177112][ T6131] RBP: 00002000000124c0 R08: 00007f32254ddef0 R09: 0000000000000000
[ 168.177124][ T6131] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 168.177135][ T6131] R13: 00007f32254ddeb0 R14: 0000000000012588 R15: 0000200000000000
[ 168.177169][ T6131]
[ 168.626138][ T6131] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 168.731623][ T6131] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 168.773474][ T6135] loop2: detected capacity change from 0 to 32768
[ 168.905000][ T6135] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 168.956063][ T6135] CPU: 1 UID: 0 PID: 6135 Comm: syz.2.19 Not tainted syzkaller #0 PREEMPT(full)
[ 168.956090][ T6135] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 168.956101][ T6135] Call Trace:
[ 168.956110][ T6135]
[ 168.956119][ T6135] dump_stack_lvl+0x189/0x250
[ 168.956151][ T6135] ? __pfx_dump_stack_lvl+0x10/0x10
[ 168.956173][ T6135] ? __pfx__printk+0x10/0x10
[ 168.956206][ T6135] ? kernfs_path_from_node+0x250/0x290
[ 168.956225][ T6135] ? kernfs_path_from_node+0x2f/0x290
[ 168.956249][ T6135] sysfs_create_dir_ns+0x259/0x280
[ 168.956272][ T6135] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 168.956292][ T6135] ? do_raw_spin_unlock+0x122/0x240
[ 168.956322][ T6135] kobject_add_internal+0x6ab/0xcc0
[ 168.956349][ T6135] kobject_init_and_add+0x125/0x190
[ 168.956374][ T6135] ? __pfx_kobject_init_and_add+0x10/0x10
[ 168.956395][ T6135] ? __raw_spin_lock_init+0x45/0x100
[ 168.956422][ T6135] ? __init_swait_queue_head+0xa9/0x150
[ 168.956451][ T6135] gfs2_sys_fs_add+0x234/0x450
[ 168.956476][ T6135] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 168.956506][ T6135] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 168.956546][ T6135] gfs2_fill_super+0x1388/0x21b0
[ 168.956585][ T6135] ? __pfx_gfs2_fill_super+0x10/0x10
[ 168.956609][ T6135] ? sb_set_blocksize+0x155/0x240
[ 168.956632][ T6135] ? setup_bdev_super+0x4c1/0x5b0
[ 168.956655][ T6135] get_tree_bdev_flags+0x40e/0x4d0
[ 168.956675][ T6135] ? __pfx_gfs2_fill_super+0x10/0x10
[ 168.956694][ T6135] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 168.956710][ T6135] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 168.956757][ T6135] gfs2_get_tree+0x51/0x1e0
[ 168.956779][ T6135] vfs_get_tree+0x92/0x2a0
[ 168.956802][ T6135] do_new_mount+0x302/0xa10
[ 168.956822][ T6135] ? apparmor_capable+0x137/0x1a0
[ 168.956852][ T6135] ? __pfx_do_new_mount+0x10/0x10
[ 168.956872][ T6135] ? ns_capable+0x8a/0xf0
[ 168.956895][ T6135] ? kmem_cache_free+0x197/0x620
[ 168.956922][ T6135] __se_sys_mount+0x313/0x410
[ 168.956950][ T6135] ? __pfx___se_sys_mount+0x10/0x10
[ 168.956978][ T6135] ? do_syscall_64+0xbe/0xf80
[ 168.956994][ T6135] ? __x64_sys_mount+0x20/0xc0
[ 168.957017][ T6135] do_syscall_64+0xfa/0xf80
[ 168.957035][ T6135] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 168.957052][ T6135] ? clear_bhb_loop+0x60/0xb0
[ 168.957072][ T6135] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 168.957089][ T6135] RIP: 0033:0x7f8831790eea
[ 168.957106][ T6135] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 168.957121][ T6135] RSP: 002b:00007f8832621e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 168.957141][ T6135] RAX: ffffffffffffffda RBX: 00007f8832621ef0 RCX: 00007f8831790eea
[ 168.957153][ T6135] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f8832621eb0
[ 168.957163][ T6135] RBP: 00002000000124c0 R08: 00007f8832621ef0 R09: 0000000000000000
[ 168.957174][ T6135] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 168.957184][ T6135] R13: 00007f8832621eb0 R14: 0000000000012588 R15: 0000200000000000
[ 168.957215][ T6135]
[ 168.957243][ T6135] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 169.318987][ T6135] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 169.368962][ T6137] loop3: detected capacity change from 0 to 32768
[ 169.416308][ T6137] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 169.438911][ T6137] CPU: 1 UID: 0 PID: 6137 Comm: syz.3.20 Not tainted syzkaller #0 PREEMPT(full)
[ 169.438937][ T6137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 169.438946][ T6137] Call Trace:
[ 169.438952][ T6137]
[ 169.438959][ T6137] dump_stack_lvl+0x189/0x250
[ 169.438987][ T6137] ? __pfx_dump_stack_lvl+0x10/0x10
[ 169.439006][ T6137] ? __pfx__printk+0x10/0x10
[ 169.439034][ T6137] ? kernfs_path_from_node+0x250/0x290
[ 169.439051][ T6137] ? kernfs_path_from_node+0x2f/0x290
[ 169.439071][ T6137] sysfs_create_dir_ns+0x259/0x280
[ 169.439090][ T6137] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 169.439109][ T6137] ? do_raw_spin_unlock+0x122/0x240
[ 169.439136][ T6137] kobject_add_internal+0x6ab/0xcc0
[ 169.439164][ T6137] kobject_init_and_add+0x125/0x190
[ 169.439187][ T6137] ? __pfx_kobject_init_and_add+0x10/0x10
[ 169.439206][ T6137] ? __raw_spin_lock_init+0x45/0x100
[ 169.439229][ T6137] ? __init_swait_queue_head+0xa9/0x150
[ 169.439254][ T6137] gfs2_sys_fs_add+0x234/0x450
[ 169.439278][ T6137] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 169.439307][ T6137] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 169.439342][ T6137] gfs2_fill_super+0x1388/0x21b0
[ 169.439374][ T6137] ? __pfx_gfs2_fill_super+0x10/0x10
[ 169.439395][ T6137] ? sb_set_blocksize+0x155/0x240
[ 169.439415][ T6137] ? setup_bdev_super+0x4c1/0x5b0
[ 169.439437][ T6137] get_tree_bdev_flags+0x40e/0x4d0
[ 169.439464][ T6137] ? __pfx_gfs2_fill_super+0x10/0x10
[ 169.439480][ T6137] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 169.439494][ T6137] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 169.439529][ T6137] gfs2_get_tree+0x51/0x1e0
[ 169.439549][ T6137] vfs_get_tree+0x92/0x2a0
[ 169.439568][ T6137] do_new_mount+0x302/0xa10
[ 169.439587][ T6137] ? apparmor_capable+0x137/0x1a0
[ 169.439613][ T6137] ? __pfx_do_new_mount+0x10/0x10
[ 169.439635][ T6137] ? ns_capable+0x8a/0xf0
[ 169.439655][ T6137] ? kmem_cache_free+0x197/0x620
[ 169.439684][ T6137] __se_sys_mount+0x313/0x410
[ 169.439710][ T6137] ? __pfx___se_sys_mount+0x10/0x10
[ 169.439735][ T6137] ? do_syscall_64+0xbe/0xf80
[ 169.439750][ T6137] ? __x64_sys_mount+0x20/0xc0
[ 169.439775][ T6137] do_syscall_64+0xfa/0xf80
[ 169.439793][ T6137] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 169.439811][ T6137] ? clear_bhb_loop+0x60/0xb0
[ 169.439834][ T6137] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 169.439851][ T6137] RIP: 0033:0x7f92ae190eea
[ 169.439869][ T6137] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 169.439882][ T6137] RSP: 002b:00007f92af00ee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 169.439902][ T6137] RAX: ffffffffffffffda RBX: 00007f92af00eef0 RCX: 00007f92ae190eea
[ 169.439915][ T6137] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f92af00eeb0
[ 169.439926][ T6137] RBP: 00002000000124c0 R08: 00007f92af00eef0 R09: 0000000000000000
[ 169.439937][ T6137] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 169.439948][ T6137] R13: 00007f92af00eeb0 R14: 0000000000012588 R15: 0000200000000000
[ 169.439980][ T6137]
[ 169.440621][ T6137] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 169.798046][ T6137] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/12/07 14:51:49 executed programs: 19
[ 170.128966][ T6142] loop4: detected capacity change from 0 to 32768
[ 170.161811][ T6142] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 170.202404][ T6142] CPU: 1 UID: 0 PID: 6142 Comm: syz.4.23 Not tainted syzkaller #0 PREEMPT(full)
[ 170.202433][ T6142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 170.202445][ T6142] Call Trace:
[ 170.202452][ T6142]
[ 170.202461][ T6142] dump_stack_lvl+0x189/0x250
[ 170.202502][ T6142] ? __pfx_dump_stack_lvl+0x10/0x10
[ 170.202526][ T6142] ? __pfx__printk+0x10/0x10
[ 170.202561][ T6142] ? kernfs_path_from_node+0x250/0x290
[ 170.202581][ T6142] ? kernfs_path_from_node+0x2f/0x290
[ 170.202605][ T6142] sysfs_create_dir_ns+0x259/0x280
[ 170.202629][ T6142] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 170.202651][ T6142] ? do_raw_spin_unlock+0x122/0x240
[ 170.202683][ T6142] kobject_add_internal+0x6ab/0xcc0
[ 170.202714][ T6142] kobject_init_and_add+0x125/0x190
[ 170.202741][ T6142] ? __pfx_kobject_init_and_add+0x10/0x10
[ 170.202764][ T6142] ? __raw_spin_lock_init+0x45/0x100
[ 170.202792][ T6142] ? __init_swait_queue_head+0xa9/0x150
[ 170.202822][ T6142] gfs2_sys_fs_add+0x234/0x450
[ 170.202850][ T6142] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 170.202883][ T6142] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 170.202925][ T6142] gfs2_fill_super+0x1388/0x21b0
[ 170.202963][ T6142] ? __pfx_gfs2_fill_super+0x10/0x10
[ 170.202988][ T6142] ? sb_set_blocksize+0x155/0x240
[ 170.203011][ T6142] ? setup_bdev_super+0x4c1/0x5b0
[ 170.203035][ T6142] get_tree_bdev_flags+0x40e/0x4d0
[ 170.203055][ T6142] ? __pfx_gfs2_fill_super+0x10/0x10
[ 170.203072][ T6142] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 170.203088][ T6142] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 170.203128][ T6142] gfs2_get_tree+0x51/0x1e0
[ 170.203151][ T6142] vfs_get_tree+0x92/0x2a0
[ 170.203173][ T6142] do_new_mount+0x302/0xa10
[ 170.203194][ T6142] ? apparmor_capable+0x137/0x1a0
[ 170.203225][ T6142] ? __pfx_do_new_mount+0x10/0x10
[ 170.203248][ T6142] ? ns_capable+0x8a/0xf0
[ 170.203272][ T6142] ? kmem_cache_free+0x197/0x620
[ 170.203303][ T6142] __se_sys_mount+0x313/0x410
[ 170.203334][ T6142] ? __pfx___se_sys_mount+0x10/0x10
[ 170.203362][ T6142] ? do_syscall_64+0xbe/0xf80
[ 170.203378][ T6142] ? __x64_sys_mount+0x20/0xc0
[ 170.203404][ T6142] do_syscall_64+0xfa/0xf80
[ 170.203422][ T6142] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 170.203440][ T6142] ? clear_bhb_loop+0x60/0xb0
[ 170.203462][ T6142] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 170.203479][ T6142] RIP: 0033:0x7f32fc990eea
[ 170.203505][ T6142] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 170.203520][ T6142] RSP: 002b:00007f32fd8fce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 170.203542][ T6142] RAX: ffffffffffffffda RBX: 00007f32fd8fcef0 RCX: 00007f32fc990eea
[ 170.203556][ T6142] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f32fd8fceb0
[ 170.203568][ T6142] RBP: 00002000000124c0 R08: 00007f32fd8fcef0 R09: 0000000000000000
[ 170.203580][ T6142] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 170.203592][ T6142] R13: 00007f32fd8fceb0 R14: 0000000000012588 R15: 0000200000000000
[ 170.203627][ T6142]
[ 170.203656][ T6142] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 170.543992][ T6142] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 170.685160][ T6153] loop2: detected capacity change from 0 to 32768
[ 170.733661][ T6153] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 170.776081][ T6153] CPU: 1 UID: 0 PID: 6153 Comm: syz.2.25 Not tainted syzkaller #0 PREEMPT(full)
[ 170.776111][ T6153] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 170.776121][ T6153] Call Trace:
[ 170.776129][ T6153]
[ 170.776137][ T6153] dump_stack_lvl+0x189/0x250
[ 170.776170][ T6153] ? __pfx_dump_stack_lvl+0x10/0x10
[ 170.776194][ T6153] ? __pfx__printk+0x10/0x10
[ 170.776229][ T6153] ? kernfs_path_from_node+0x250/0x290
[ 170.776249][ T6153] ? kernfs_path_from_node+0x2f/0x290
[ 170.776274][ T6153] sysfs_create_dir_ns+0x259/0x280
[ 170.776298][ T6153] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 170.776321][ T6153] ? do_raw_spin_unlock+0x122/0x240
[ 170.776353][ T6153] kobject_add_internal+0x6ab/0xcc0
[ 170.776386][ T6153] kobject_init_and_add+0x125/0x190
[ 170.776414][ T6153] ? __pfx_kobject_init_and_add+0x10/0x10
[ 170.776435][ T6153] ? __raw_spin_lock_init+0x45/0x100
[ 170.776540][ T6153] ? __init_swait_queue_head+0xa9/0x150
[ 170.776575][ T6153] gfs2_sys_fs_add+0x234/0x450
[ 170.776599][ T6153] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 170.776629][ T6153] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 170.776672][ T6153] gfs2_fill_super+0x1388/0x21b0
[ 170.776709][ T6153] ? __pfx_gfs2_fill_super+0x10/0x10
[ 170.776732][ T6153] ? sb_set_blocksize+0x155/0x240
[ 170.776756][ T6153] ? setup_bdev_super+0x4c1/0x5b0
[ 170.776791][ T6153] get_tree_bdev_flags+0x40e/0x4d0
[ 170.776811][ T6153] ? __pfx_gfs2_fill_super+0x10/0x10
[ 170.776830][ T6153] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 170.776848][ T6153] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 170.776889][ T6153] gfs2_get_tree+0x51/0x1e0
[ 170.776912][ T6153] vfs_get_tree+0x92/0x2a0
[ 170.776936][ T6153] do_new_mount+0x302/0xa10
[ 170.776959][ T6153] ? apparmor_capable+0x137/0x1a0
[ 170.776990][ T6153] ? __pfx_do_new_mount+0x10/0x10
[ 170.777013][ T6153] ? ns_capable+0x8a/0xf0
[ 170.777038][ T6153] ? kmem_cache_free+0x197/0x620
[ 170.777071][ T6153] __se_sys_mount+0x313/0x410
[ 170.777103][ T6153] ? __pfx___se_sys_mount+0x10/0x10
[ 170.777132][ T6153] ? do_syscall_64+0xbe/0xf80
[ 170.777149][ T6153] ? __x64_sys_mount+0x20/0xc0
[ 170.777176][ T6153] do_syscall_64+0xfa/0xf80
[ 170.777196][ T6153] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 170.777215][ T6153] ? clear_bhb_loop+0x60/0xb0
[ 170.777238][ T6153] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 170.777256][ T6153] RIP: 0033:0x7f8831790eea
[ 170.777275][ T6153] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 170.777291][ T6153] RSP: 002b:00007f8832621e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 170.777312][ T6153] RAX: ffffffffffffffda RBX: 00007f8832621ef0 RCX: 00007f8831790eea
[ 170.777326][ T6153] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f8832621eb0
[ 170.777339][ T6153] RBP: 00002000000124c0 R08: 00007f8832621ef0 R09: 0000000000000000
[ 170.777351][ T6153] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 170.777363][ T6153] R13: 00007f8832621eb0 R14: 0000000000012588 R15: 0000200000000000
[ 170.777397][ T6153]
[ 170.777430][ T6153] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 170.780972][ T6149] loop1: detected capacity change from 0 to 32768
[ 170.789647][ T6153] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 171.164451][ T6149] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 171.214742][ T6149] CPU: 1 UID: 0 PID: 6149 Comm: syz.1.24 Not tainted syzkaller #0 PREEMPT(full)
[ 171.214771][ T6149] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 171.214782][ T6149] Call Trace:
[ 171.214790][ T6149]
[ 171.214799][ T6149] dump_stack_lvl+0x189/0x250
[ 171.214832][ T6149] ? __pfx_dump_stack_lvl+0x10/0x10
[ 171.214855][ T6149] ? __pfx__printk+0x10/0x10
[ 171.214889][ T6149] ? kernfs_path_from_node+0x250/0x290
[ 171.214909][ T6149] ? kernfs_path_from_node+0x2f/0x290
[ 171.214933][ T6149] sysfs_create_dir_ns+0x259/0x280
[ 171.214957][ T6149] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 171.214979][ T6149] ? do_raw_spin_unlock+0x122/0x240
[ 171.215011][ T6149] kobject_add_internal+0x6ab/0xcc0
[ 171.215042][ T6149] kobject_init_and_add+0x125/0x190
[ 171.215070][ T6149] ? __pfx_kobject_init_and_add+0x10/0x10
[ 171.215094][ T6149] ? __raw_spin_lock_init+0x45/0x100
[ 171.215121][ T6149] ? __init_swait_queue_head+0xa9/0x150
[ 171.215152][ T6149] gfs2_sys_fs_add+0x234/0x450
[ 171.215179][ T6149] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 171.215214][ T6149] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 171.215256][ T6149] gfs2_fill_super+0x1388/0x21b0
[ 171.215292][ T6149] ? __pfx_gfs2_fill_super+0x10/0x10
[ 171.215317][ T6149] ? sb_set_blocksize+0x155/0x240
[ 171.215341][ T6149] ? setup_bdev_super+0x4c1/0x5b0
[ 171.215364][ T6149] get_tree_bdev_flags+0x40e/0x4d0
[ 171.215384][ T6149] ? __pfx_gfs2_fill_super+0x10/0x10
[ 171.215403][ T6149] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 171.215420][ T6149] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 171.215459][ T6149] gfs2_get_tree+0x51/0x1e0
[ 171.215480][ T6149] vfs_get_tree+0x92/0x2a0
[ 171.215512][ T6149] do_new_mount+0x302/0xa10
[ 171.215534][ T6149] ? apparmor_capable+0x137/0x1a0
[ 171.215564][ T6149] ? __pfx_do_new_mount+0x10/0x10
[ 171.215587][ T6149] ? ns_capable+0x8a/0xf0
[ 171.215611][ T6149] ? kmem_cache_free+0x197/0x620
[ 171.215644][ T6149] __se_sys_mount+0x313/0x410
[ 171.215675][ T6149] ? __pfx___se_sys_mount+0x10/0x10
[ 171.215702][ T6149] ? do_syscall_64+0xbe/0xf80
[ 171.215719][ T6149] ? __x64_sys_mount+0x20/0xc0
[ 171.215744][ T6149] do_syscall_64+0xfa/0xf80
[ 171.215762][ T6149] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 171.215780][ T6149] ? clear_bhb_loop+0x60/0xb0
[ 171.215803][ T6149] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 171.215821][ T6149] RIP: 0033:0x7f3224590eea
[ 171.215839][ T6149] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 171.215854][ T6149] RSP: 002b:00007f32254dde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 171.215874][ T6149] RAX: ffffffffffffffda RBX: 00007f32254ddef0 RCX: 00007f3224590eea
[ 171.215887][ T6149] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f32254ddeb0
[ 171.215899][ T6149] RBP: 00002000000124c0 R08: 00007f32254ddef0 R09: 0000000000000000
[ 171.215911][ T6149] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 171.215923][ T6149] R13: 00007f32254ddeb0 R14: 0000000000012588 R15: 0000200000000000
[ 171.215957][ T6149]
[ 171.616403][ T6149] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 171.694408][ T6149] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 171.891002][ T24] gfs2: fsid=syz:syz.0: file system withdrawn
[ 172.432586][ T6166] loop4: detected capacity change from 0 to 32768
[ 172.525834][ T6157] loop3: detected capacity change from 0 to 32768
[ 172.535056][ T6166] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 172.545489][ T6166] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 172.597968][ T6166] gfs2: fsid=syz:syz.0: journal 0 mapped with 9 extents in 0ms
[ 172.624419][ T6157] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 172.664604][ T6157] CPU: 1 UID: 0 PID: 6157 Comm: syz.3.26 Not tainted syzkaller #0 PREEMPT(full)
[ 172.664633][ T6157] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 172.664644][ T6157] Call Trace:
[ 172.664652][ T6157]
[ 172.664660][ T6157] dump_stack_lvl+0x189/0x250
[ 172.664701][ T6157] ? __pfx_dump_stack_lvl+0x10/0x10
[ 172.664725][ T6157] ? __pfx__printk+0x10/0x10
[ 172.664759][ T6157] ? kernfs_path_from_node+0x250/0x290
[ 172.664779][ T6157] ? kernfs_path_from_node+0x2f/0x290
[ 172.664803][ T6157] sysfs_create_dir_ns+0x259/0x280
[ 172.664828][ T6157] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 172.664850][ T6157] ? do_raw_spin_unlock+0x122/0x240
[ 172.664883][ T6157] kobject_add_internal+0x6ab/0xcc0
[ 172.664923][ T6157] kobject_init_and_add+0x125/0x190
[ 172.664952][ T6157] ? __pfx_kobject_init_and_add+0x10/0x10
[ 172.664974][ T6157] ? __raw_spin_lock_init+0x45/0x100
[ 172.665001][ T6157] ? __init_swait_queue_head+0xa9/0x150
[ 172.665032][ T6157] gfs2_sys_fs_add+0x234/0x450
[ 172.665067][ T6157] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 172.665101][ T6157] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 172.665144][ T6157] gfs2_fill_super+0x1388/0x21b0
[ 172.665182][ T6157] ? __pfx_gfs2_fill_super+0x10/0x10
[ 172.665206][ T6157] ? sb_set_blocksize+0x155/0x240
[ 172.665229][ T6157] ? setup_bdev_super+0x4c1/0x5b0
[ 172.665253][ T6157] get_tree_bdev_flags+0x40e/0x4d0
[ 172.665273][ T6157] ? __pfx_gfs2_fill_super+0x10/0x10
[ 172.665292][ T6157] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 172.665327][ T6157] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 172.665368][ T6157] gfs2_get_tree+0x51/0x1e0
[ 172.665391][ T6157] vfs_get_tree+0x92/0x2a0
[ 172.665413][ T6157] do_new_mount+0x302/0xa10
[ 172.665435][ T6157] ? apparmor_capable+0x137/0x1a0
[ 172.665464][ T6157] ? __pfx_do_new_mount+0x10/0x10
[ 172.665486][ T6157] ? ns_capable+0x8a/0xf0
[ 172.665510][ T6157] ? kmem_cache_free+0x197/0x620
[ 172.665542][ T6157] __se_sys_mount+0x313/0x410
[ 172.665573][ T6157] ? __pfx___se_sys_mount+0x10/0x10
[ 172.665602][ T6157] ? do_syscall_64+0xbe/0xf80
[ 172.665618][ T6157] ? __x64_sys_mount+0x20/0xc0
[ 172.665643][ T6157] do_syscall_64+0xfa/0xf80
[ 172.665662][ T6157] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 172.665680][ T6157] ? clear_bhb_loop+0x60/0xb0
[ 172.665711][ T6157] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 172.665729][ T6157] RIP: 0033:0x7f92ae190eea
[ 172.665747][ T6157] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 172.665762][ T6157] RSP: 002b:00007f92af00ee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 172.665783][ T6157] RAX: ffffffffffffffda RBX: 00007f92af00eef0 RCX: 00007f92ae190eea
[ 172.665796][ T6157] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f92af00eeb0
[ 172.665809][ T6157] RBP: 00002000000124c0 R08: 00007f92af00eef0 R09: 0000000000000000
[ 172.665821][ T6157] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 172.665833][ T6157] R13: 00007f92af00eeb0 R14: 0000000000012588 R15: 0000200000000000
[ 172.665866][ T6157]
[ 172.665895][ T6157] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 172.792528][ T5955] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 173.026218][ T6157] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 173.053508][ T5955] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 173.219209][ T5955] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 165ms
[ 173.246305][ T5955] gfs2: fsid=syz:syz.0: jid=0: Done
[ 173.268293][ T6166] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 173.428445][ T6166] gfs2: fsid=syz:syz.0: found 1 quota changes
[ 173.519527][ T5974] syz-executor: attempt to access beyond end of device
[ 173.519527][ T5974] loop4: rw=8400897, sector=68719479080, nr_sectors = 8 limit=32768
[ 173.534805][ T6170] loop1: detected capacity change from 0 to 32768
[ 173.593121][ T6170] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 173.606644][ T6170] CPU: 1 UID: 0 PID: 6170 Comm: syz.1.29 Not tainted syzkaller #0 PREEMPT(full)
[ 173.606674][ T6170] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 173.606685][ T6170] Call Trace:
[ 173.606693][ T6170]
[ 173.606701][ T6170] dump_stack_lvl+0x189/0x250
[ 173.606735][ T6170] ? __pfx_dump_stack_lvl+0x10/0x10
[ 173.606758][ T6170] ? __pfx__printk+0x10/0x10
[ 173.606791][ T6170] ? kernfs_path_from_node+0x250/0x290
[ 173.606820][ T6170] ? kernfs_path_from_node+0x2f/0x290
[ 173.606844][ T6170] sysfs_create_dir_ns+0x259/0x280
[ 173.606868][ T6170] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 173.606891][ T6170] ? do_raw_spin_unlock+0x122/0x240
[ 173.606924][ T6170] kobject_add_internal+0x6ab/0xcc0
[ 173.606955][ T6170] kobject_init_and_add+0x125/0x190
[ 173.606982][ T6170] ? __pfx_kobject_init_and_add+0x10/0x10
[ 173.607003][ T6170] ? __raw_spin_lock_init+0x45/0x100
[ 173.607029][ T6170] ? __init_swait_queue_head+0xa9/0x150
[ 173.607060][ T6170] gfs2_sys_fs_add+0x234/0x450
[ 173.607088][ T6170] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 173.607123][ T6170] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 173.607165][ T6170] gfs2_fill_super+0x1388/0x21b0
[ 173.607200][ T6170] ? __pfx_gfs2_fill_super+0x10/0x10
[ 173.607223][ T6170] ? sb_set_blocksize+0x155/0x240
[ 173.607245][ T6170] ? setup_bdev_super+0x4c1/0x5b0
[ 173.607269][ T6170] get_tree_bdev_flags+0x40e/0x4d0
[ 173.607287][ T6170] ? __pfx_gfs2_fill_super+0x10/0x10
[ 173.607306][ T6170] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 173.607322][ T6170] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 173.607362][ T6170] gfs2_get_tree+0x51/0x1e0
[ 173.607384][ T6170] vfs_get_tree+0x92/0x2a0
[ 173.607407][ T6170] do_new_mount+0x302/0xa10
[ 173.607428][ T6170] ? apparmor_capable+0x137/0x1a0
[ 173.607458][ T6170] ? __pfx_do_new_mount+0x10/0x10
[ 173.607481][ T6170] ? ns_capable+0x8a/0xf0
[ 173.607505][ T6170] ? kmem_cache_free+0x197/0x620
[ 173.607537][ T6170] __se_sys_mount+0x313/0x410
[ 173.607567][ T6170] ? __pfx___se_sys_mount+0x10/0x10
[ 173.607596][ T6170] ? do_syscall_64+0xbe/0xf80
[ 173.607612][ T6170] ? __x64_sys_mount+0x20/0xc0
[ 173.607637][ T6170] do_syscall_64+0xfa/0xf80
[ 173.607656][ T6170] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 173.607675][ T6170] ? clear_bhb_loop+0x60/0xb0
[ 173.607699][ T6170] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 173.607717][ T6170] RIP: 0033:0x7f3224590eea
[ 173.607745][ T6170] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 173.607760][ T6170] RSP: 002b:00007f32254dde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 173.607781][ T6170] RAX: ffffffffffffffda RBX: 00007f32254ddef0 RCX: 00007f3224590eea
[ 173.607795][ T6170] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f32254ddeb0
[ 173.607816][ T6170] RBP: 00002000000124c0 R08: 00007f32254ddef0 R09: 0000000000000000
[ 173.607828][ T6170] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 173.607839][ T6170] R13: 00007f32254ddeb0 R14: 0000000000012588 R15: 0000200000000000
[ 173.607873][ T6170]
[ 173.607902][ T6170] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 173.645148][ T5974] Buffer I/O error on dev loop4, logical block 8589934885, lost async page write
[ 173.757847][ T6168] loop2: detected capacity change from 0 to 32768
[ 173.766767][ T6170] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 173.992945][ T6168] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 174.038032][ T5974] gfs2: fsid=syz:syz.0: fatal: I/O error - block = 8589934885, function = gfs2_ail1_start_one, file = fs/gfs2/log.c, line = 116
[ 174.051796][ T5974] CPU: 1 UID: 0 PID: 5974 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 174.051820][ T5974] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 174.051830][ T5974] Call Trace:
[ 174.051838][ T5974]
[ 174.051845][ T5974] dump_stack_lvl+0x189/0x250
[ 174.051877][ T5974] ? __pfx_dump_stack_lvl+0x10/0x10
[ 174.051900][ T5974] ? do_raw_spin_lock+0x121/0x290
[ 174.051922][ T5974] ? gfs2_ail1_flush+0xce2/0xfb0
[ 174.051940][ T5974] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 174.051971][ T5974] gfs2_withdraw+0xc3/0x1b0
[ 174.051991][ T5974] gfs2_ail1_flush+0x97b/0xfb0
[ 174.052032][ T5974] ? __pfx_gfs2_ail1_flush+0x10/0x10
[ 174.052056][ T5974] ? __lock_acquire+0x6b6/0x2cf0
[ 174.052083][ T5974] empty_ail1_list+0x13d/0x260
[ 174.052105][ T5974] ? __pfx_empty_ail1_list+0x10/0x10
[ 174.052168][ T5974] ? do_raw_spin_unlock+0x122/0x240
[ 174.052197][ T5974] gfs2_log_flush+0x1de3/0x24c0
[ 174.052232][ T5974] ? __pfx_gfs2_log_flush+0x10/0x10
[ 174.052254][ T5974] ? __pfx_call_rcu+0x10/0x10
[ 174.052275][ T5974] ? radix_tree_delete_item+0x2b6/0x400
[ 174.052304][ T5974] gfs2_kill_sb+0x5c/0x430
[ 174.052321][ T5974] ? shrinker_free+0x2ce/0x3e0
[ 174.052345][ T5974] deactivate_locked_super+0xbc/0x130
[ 174.052372][ T5974] cleanup_mnt+0x425/0x4c0
[ 174.052397][ T5974] ? lockdep_hardirqs_on+0x98/0x140
[ 174.052417][ T5974] task_work_run+0x1d4/0x260
[ 174.052446][ T5974] ? __pfx_task_work_run+0x10/0x10
[ 174.052476][ T5974] ? exit_to_user_mode_loop+0x55/0x4f0
[ 174.052502][ T5974] exit_to_user_mode_loop+0xff/0x4f0
[ 174.052521][ T5974] ? rcu_is_watching+0x15/0xb0
[ 174.052550][ T5974] do_syscall_64+0x2e3/0xf80
[ 174.052569][ T5974] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 174.052589][ T5974] ? clear_bhb_loop+0x60/0xb0
[ 174.052612][ T5974] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 174.052630][ T5974] RIP: 0033:0x7f32fc990a77
[ 174.052649][ T5974] Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
[ 174.052664][ T5974] RSP: 002b:00007ffc977fb9d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 174.052686][ T5974] RAX: 0000000000000000 RBX: 00007f32fca13d7d RCX: 00007f32fc990a77
[ 174.052698][ T5974] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc977fba90
[ 174.052710][ T5974] RBP: 00007ffc977fba90 R08: 0000000000000000 R09: 0000000000000000
[ 174.052721][ T5974] R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc977fcb20
[ 174.052742][ T5974] R13: 00007f32fca13d7d R14: 000000000002a57f R15: 00007ffc977fcb60
[ 174.052784][ T5974]
[ 174.052792][ T5974] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 174.082907][ T6172] loop0: detected capacity change from 0 to 32768
[ 174.099642][ T6168] CPU: 1 UID: 0 PID: 6168 Comm: syz.2.28 Not tainted syzkaller #0 PREEMPT(full)
[ 174.099667][ T6168] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 174.099677][ T6168] Call Trace:
[ 174.099684][ T6168]
[ 174.099691][ T6168] dump_stack_lvl+0x189/0x250
[ 174.099720][ T6168] ? __pfx_dump_stack_lvl+0x10/0x10
[ 174.099751][ T6168] ? __pfx__printk+0x10/0x10
[ 174.099781][ T6168] ? kernfs_path_from_node+0x250/0x290
[ 174.099799][ T6168] ? kernfs_path_from_node+0x2f/0x290
[ 174.099821][ T6168] sysfs_create_dir_ns+0x259/0x280
[ 174.099842][ T6168] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 174.099862][ T6168] ? do_raw_spin_unlock+0x122/0x240
[ 174.099891][ T6168] kobject_add_internal+0x6ab/0xcc0
[ 174.099920][ T6168] kobject_init_and_add+0x125/0x190
[ 174.099944][ T6168] ? __pfx_kobject_init_and_add+0x10/0x10
[ 174.099964][ T6168] ? __raw_spin_lock_init+0x45/0x100
[ 174.099988][ T6168] ? __init_swait_queue_head+0xa9/0x150
[ 174.100016][ T6168] gfs2_sys_fs_add+0x234/0x450
[ 174.100041][ T6168] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 174.100070][ T6168] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 174.100108][ T6168] gfs2_fill_super+0x1388/0x21b0
[ 174.100142][ T6168] ? __pfx_gfs2_fill_super+0x10/0x10
[ 174.100163][ T6168] ? sb_set_blocksize+0x155/0x240
[ 174.100184][ T6168] ? setup_bdev_super+0x4c1/0x5b0
[ 174.100205][ T6168] get_tree_bdev_flags+0x40e/0x4d0
[ 174.100223][ T6168] ? __pfx_gfs2_fill_super+0x10/0x10
[ 174.100239][ T6168] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 174.100255][ T6168] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 174.100290][ T6168] gfs2_get_tree+0x51/0x1e0
[ 174.100309][ T6168] vfs_get_tree+0x92/0x2a0
[ 174.100330][ T6168] do_new_mount+0x302/0xa10
[ 174.100349][ T6168] ? apparmor_capable+0x137/0x1a0
[ 174.100376][ T6168] ? __pfx_do_new_mount+0x10/0x10
[ 174.100396][ T6168] ? ns_capable+0x8a/0xf0
[ 174.100416][ T6168] ? kmem_cache_free+0x197/0x620
[ 174.100444][ T6168] __se_sys_mount+0x313/0x410
[ 174.100471][ T6168] ? __pfx___se_sys_mount+0x10/0x10
[ 174.100496][ T6168] ? do_syscall_64+0xbe/0xf80
[ 174.100511][ T6168] ? __x64_sys_mount+0x20/0xc0
[ 174.100534][ T6168] do_syscall_64+0xfa/0xf80
[ 174.100550][ T6168] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 174.100566][ T6168] ? clear_bhb_loop+0x60/0xb0
[ 174.100587][ T6168] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 174.100602][ T6168] RIP: 0033:0x7f8831790eea
[ 174.100618][ T6168] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 174.100631][ T6168] RSP: 002b:00007f8832621e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 174.100650][ T6168] RAX: ffffffffffffffda RBX: 00007f8832621ef0 RCX: 00007f8831790eea
[ 174.100662][ T6168] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f8832621eb0
[ 174.100673][ T6168] RBP: 00002000000124c0 R08: 00007f8832621ef0 R09: 0000000000000000
[ 174.100683][ T6168] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 174.100694][ T6168] R13: 00007f8832621eb0 R14: 0000000000012588 R15: 0000200000000000
[ 174.100723][ T6168]
[ 174.100756][ T6168] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 174.215099][ T6172] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 174.221043][ T6168] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 174.225562][ T6172] CPU: 0 UID: 0 PID: 6172 Comm: syz.0.22 Not tainted syzkaller #0 PREEMPT(full)
[ 174.225584][ T6172] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 174.225594][ T6172] Call Trace:
[ 174.225604][ T6172]
[ 174.225612][ T6172] dump_stack_lvl+0x189/0x250
[ 174.225649][ T6172] ? __pfx_dump_stack_lvl+0x10/0x10
[ 174.225670][ T6172] ? __pfx__printk+0x10/0x10
[ 174.225701][ T6172] ? kernfs_path_from_node+0x250/0x290
[ 174.225726][ T6172] ? kernfs_path_from_node+0x2f/0x290
[ 174.225748][ T6172] sysfs_create_dir_ns+0x259/0x280
[ 174.225769][ T6172] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 174.225789][ T6172] ? do_raw_spin_unlock+0x122/0x240
[ 174.225818][ T6172] kobject_add_internal+0x6ab/0xcc0
[ 174.225847][ T6172] kobject_init_and_add+0x125/0x190
[ 174.225872][ T6172] ? __pfx_kobject_init_and_add+0x10/0x10
[ 174.225892][ T6172] ? __raw_spin_lock_init+0x45/0x100
[ 174.225916][ T6172] ? __init_swait_queue_head+0xa9/0x150
[ 174.225943][ T6172] gfs2_sys_fs_add+0x234/0x450
[ 174.225968][ T6172] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 174.226003][ T6172] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 174.226040][ T6172] gfs2_fill_super+0x1388/0x21b0
[ 174.226074][ T6172] ? __pfx_gfs2_fill_super+0x10/0x10
[ 174.226095][ T6172] ? sb_set_blocksize+0x155/0x240
[ 174.226116][ T6172] ? setup_bdev_super+0x4c1/0x5b0
[ 174.226138][ T6172] get_tree_bdev_flags+0x40e/0x4d0
[ 174.226155][ T6172] ? __pfx_gfs2_fill_super+0x10/0x10
[ 174.226172][ T6172] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 174.226187][ T6172] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 174.226222][ T6172] gfs2_get_tree+0x51/0x1e0
[ 174.226242][ T6172] vfs_get_tree+0x92/0x2a0
[ 174.226263][ T6172] do_new_mount+0x302/0xa10
[ 174.226281][ T6172] ? apparmor_capable+0x137/0x1a0
[ 174.226308][ T6172] ? __pfx_do_new_mount+0x10/0x10
[ 174.226328][ T6172] ? ns_capable+0x8a/0xf0
[ 174.226350][ T6172] ? kmem_cache_free+0x197/0x620
[ 174.226379][ T6172] __se_sys_mount+0x313/0x410
[ 174.226406][ T6172] ? __pfx___se_sys_mount+0x10/0x10
[ 174.226432][ T6172] ? do_syscall_64+0xbe/0xf80
[ 174.226446][ T6172] ? __x64_sys_mount+0x20/0xc0
[ 174.226469][ T6172] do_syscall_64+0xfa/0xf80
[ 174.226487][ T6172] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 174.226504][ T6172] ? clear_bhb_loop+0x60/0xb0
[ 174.226525][ T6172] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 174.226542][ T6172] RIP: 0033:0x7f3feff90eea
[ 174.226558][ T6172] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 174.226571][ T6172] RSP: 002b:00007f3ff0d78e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 174.226591][ T6172] RAX: ffffffffffffffda RBX: 00007f3ff0d78ef0 RCX: 00007f3feff90eea
[ 174.226603][ T6172] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f3ff0d78eb0
[ 174.226614][ T6172] RBP: 00002000000124c0 R08: 00007f3ff0d78ef0 R09: 0000000000000000
[ 174.226625][ T6172] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 174.226636][ T6172] R13: 00007f3ff0d78eb0 R14: 0000000000012588 R15: 0000200000000000
[ 174.226666][ T6172]
[ 174.227379][ T6172] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 175.063703][ T6172] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/12/07 14:51:54 executed programs: 27
[ 175.454588][ T6178] loop3: detected capacity change from 0 to 32768
[ 175.531608][ T6178] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 175.558990][ T6189] loop2: detected capacity change from 0 to 32768
[ 175.582423][ T6178] CPU: 0 UID: 0 PID: 6178 Comm: syz.3.30 Not tainted syzkaller #0 PREEMPT(full)
[ 175.582451][ T6178] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 175.582463][ T6178] Call Trace:
[ 175.582471][ T6178]
[ 175.582480][ T6178] dump_stack_lvl+0x189/0x250
[ 175.582513][ T6178] ? __pfx_dump_stack_lvl+0x10/0x10
[ 175.582537][ T6178] ? __pfx__printk+0x10/0x10
[ 175.582580][ T6178] ? kernfs_path_from_node+0x250/0x290
[ 175.582601][ T6178] ? kernfs_path_from_node+0x2f/0x290
[ 175.582626][ T6178] sysfs_create_dir_ns+0x259/0x280
[ 175.582650][ T6178] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 175.582672][ T6178] ? do_raw_spin_unlock+0x122/0x240
[ 175.582704][ T6178] kobject_add_internal+0x6ab/0xcc0
[ 175.582736][ T6178] kobject_init_and_add+0x125/0x190
[ 175.582762][ T6178] ? __pfx_kobject_init_and_add+0x10/0x10
[ 175.582783][ T6178] ? __raw_spin_lock_init+0x45/0x100
[ 175.582811][ T6178] ? __init_swait_queue_head+0xa9/0x150
[ 175.582840][ T6178] gfs2_sys_fs_add+0x234/0x450
[ 175.582869][ T6178] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 175.582904][ T6178] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 175.582946][ T6178] gfs2_fill_super+0x1388/0x21b0
[ 175.582984][ T6178] ? __pfx_gfs2_fill_super+0x10/0x10
[ 175.583008][ T6178] ? sb_set_blocksize+0x155/0x240
[ 175.583032][ T6178] ? setup_bdev_super+0x4c1/0x5b0
[ 175.583056][ T6178] get_tree_bdev_flags+0x40e/0x4d0
[ 175.583076][ T6178] ? __pfx_gfs2_fill_super+0x10/0x10
[ 175.583095][ T6178] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 175.583112][ T6178] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 175.583153][ T6178] gfs2_get_tree+0x51/0x1e0
[ 175.583176][ T6178] vfs_get_tree+0x92/0x2a0
[ 175.583199][ T6178] do_new_mount+0x302/0xa10
[ 175.583220][ T6178] ? apparmor_capable+0x137/0x1a0
[ 175.583252][ T6178] ? __pfx_do_new_mount+0x10/0x10
[ 175.583276][ T6178] ? ns_capable+0x8a/0xf0
[ 175.583300][ T6178] ? kmem_cache_free+0x197/0x620
[ 175.583333][ T6178] __se_sys_mount+0x313/0x410
[ 175.583365][ T6178] ? __pfx___se_sys_mount+0x10/0x10
[ 175.583394][ T6178] ? do_syscall_64+0xbe/0xf80
[ 175.583410][ T6178] ? __x64_sys_mount+0x20/0xc0
[ 175.583436][ T6178] do_syscall_64+0xfa/0xf80
[ 175.583455][ T6178] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 175.583474][ T6178] ? clear_bhb_loop+0x60/0xb0
[ 175.583497][ T6178] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 175.583515][ T6178] RIP: 0033:0x7f92ae190eea
[ 175.583534][ T6178] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 175.583556][ T6178] RSP: 002b:00007f92af00ee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 175.583579][ T6178] RAX: ffffffffffffffda RBX: 00007f92af00eef0 RCX: 00007f92ae190eea
[ 175.583592][ T6178] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f92af00eeb0
[ 175.583604][ T6178] RBP: 00002000000124c0 R08: 00007f92af00eef0 R09: 0000000000000000
[ 175.583617][ T6178] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 175.583628][ T6178] R13: 00007f92af00eeb0 R14: 0000000000012588 R15: 0000200000000000
[ 175.583662][ T6178]
[ 175.583690][ T6178] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 175.920649][ T6178] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 175.936515][ T6189] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 175.961627][ T6189] CPU: 1 UID: 0 PID: 6189 Comm: syz.2.32 Not tainted syzkaller #0 PREEMPT(full)
[ 175.961653][ T6189] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 175.961664][ T6189] Call Trace:
[ 175.961672][ T6189]
[ 175.961681][ T6189] dump_stack_lvl+0x189/0x250
[ 175.961713][ T6189] ? __pfx_dump_stack_lvl+0x10/0x10
[ 175.961736][ T6189] ? __pfx__printk+0x10/0x10
[ 175.961776][ T6189] ? kernfs_path_from_node+0x250/0x290
[ 175.961795][ T6189] ? kernfs_path_from_node+0x2f/0x290
[ 175.961816][ T6189] sysfs_create_dir_ns+0x259/0x280
[ 175.961839][ T6189] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 175.961859][ T6189] ? do_raw_spin_unlock+0x122/0x240
[ 175.961889][ T6189] kobject_add_internal+0x6ab/0xcc0
[ 175.961920][ T6189] kobject_init_and_add+0x125/0x190
[ 175.961945][ T6189] ? __pfx_kobject_init_and_add+0x10/0x10
[ 175.961967][ T6189] ? __raw_spin_lock_init+0x45/0x100
[ 175.961994][ T6189] ? __init_swait_queue_head+0xa9/0x150
[ 175.962022][ T6189] gfs2_sys_fs_add+0x234/0x450
[ 175.962050][ T6189] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 175.962080][ T6189] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 175.962122][ T6189] gfs2_fill_super+0x1388/0x21b0
[ 175.962159][ T6189] ? __pfx_gfs2_fill_super+0x10/0x10
[ 175.962183][ T6189] ? sb_set_blocksize+0x155/0x240
[ 175.962204][ T6189] ? setup_bdev_super+0x4c1/0x5b0
[ 175.962226][ T6189] get_tree_bdev_flags+0x40e/0x4d0
[ 175.962245][ T6189] ? __pfx_gfs2_fill_super+0x10/0x10
[ 175.962262][ T6189] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 175.962278][ T6189] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 175.962313][ T6189] gfs2_get_tree+0x51/0x1e0
[ 175.962332][ T6189] vfs_get_tree+0x92/0x2a0
[ 175.962353][ T6189] do_new_mount+0x302/0xa10
[ 175.962373][ T6189] ? apparmor_capable+0x137/0x1a0
[ 175.962401][ T6189] ? __pfx_do_new_mount+0x10/0x10
[ 175.962424][ T6189] ? ns_capable+0x8a/0xf0
[ 175.962447][ T6189] ? kmem_cache_free+0x197/0x620
[ 175.962474][ T6189] __se_sys_mount+0x313/0x410
[ 175.962504][ T6189] ? __pfx___se_sys_mount+0x10/0x10
[ 175.962530][ T6189] ? do_syscall_64+0xbe/0xf80
[ 175.962546][ T6189] ? __x64_sys_mount+0x20/0xc0
[ 175.962569][ T6189] do_syscall_64+0xfa/0xf80
[ 175.962586][ T6189] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 175.962603][ T6189] ? clear_bhb_loop+0x60/0xb0
[ 175.962627][ T6189] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 175.962644][ T6189] RIP: 0033:0x7f8831790eea
[ 175.962661][ T6189] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 175.962676][ T6189] RSP: 002b:00007f8832621e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 175.962696][ T6189] RAX: ffffffffffffffda RBX: 00007f8832621ef0 RCX: 00007f8831790eea
[ 175.962709][ T6189] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f8832621eb0
[ 175.962720][ T6189] RBP: 00002000000124c0 R08: 00007f8832621ef0 R09: 0000000000000000
[ 175.962732][ T6189] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 175.962743][ T6189] R13: 00007f8832621eb0 R14: 0000000000012588 R15: 0000200000000000
[ 175.962783][ T6189]
[ 176.216171][ T6189] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 176.364061][ T6189] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 176.399725][ T6191] loop1: detected capacity change from 0 to 32768
[ 176.458587][ T6191] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 176.466171][ T6191] CPU: 1 UID: 0 PID: 6191 Comm: syz.1.33 Not tainted syzkaller #0 PREEMPT(full)
[ 176.466198][ T6191] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 176.466208][ T6191] Call Trace:
[ 176.466215][ T6191]
[ 176.466222][ T6191] dump_stack_lvl+0x189/0x250
[ 176.466253][ T6191] ? __pfx_dump_stack_lvl+0x10/0x10
[ 176.466274][ T6191] ? __pfx__printk+0x10/0x10
[ 176.466306][ T6191] ? kernfs_path_from_node+0x250/0x290
[ 176.466326][ T6191] ? kernfs_path_from_node+0x2f/0x290
[ 176.466349][ T6191] sysfs_create_dir_ns+0x259/0x280
[ 176.466371][ T6191] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 176.466391][ T6191] ? do_raw_spin_unlock+0x122/0x240
[ 176.466421][ T6191] kobject_add_internal+0x6ab/0xcc0
[ 176.466449][ T6191] kobject_init_and_add+0x125/0x190
[ 176.466476][ T6191] ? __pfx_kobject_init_and_add+0x10/0x10
[ 176.466506][ T6191] ? __raw_spin_lock_init+0x45/0x100
[ 176.466531][ T6191] ? __init_swait_queue_head+0xa9/0x150
[ 176.466558][ T6191] gfs2_sys_fs_add+0x234/0x450
[ 176.466585][ T6191] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 176.466616][ T6191] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 176.466658][ T6191] gfs2_fill_super+0x1388/0x21b0
[ 176.466694][ T6191] ? __pfx_gfs2_fill_super+0x10/0x10
[ 176.466718][ T6191] ? sb_set_blocksize+0x155/0x240
[ 176.466740][ T6191] ? setup_bdev_super+0x4c1/0x5b0
[ 176.466763][ T6191] get_tree_bdev_flags+0x40e/0x4d0
[ 176.466782][ T6191] ? __pfx_gfs2_fill_super+0x10/0x10
[ 176.466800][ T6191] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 176.466817][ T6191] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 176.466856][ T6191] gfs2_get_tree+0x51/0x1e0
[ 176.466878][ T6191] vfs_get_tree+0x92/0x2a0
[ 176.466900][ T6191] do_new_mount+0x302/0xa10
[ 176.466921][ T6191] ? apparmor_capable+0x137/0x1a0
[ 176.466951][ T6191] ? __pfx_do_new_mount+0x10/0x10
[ 176.466973][ T6191] ? ns_capable+0x8a/0xf0
[ 176.466996][ T6191] ? kmem_cache_free+0x197/0x620
[ 176.467028][ T6191] __se_sys_mount+0x313/0x410
[ 176.467058][ T6191] ? __pfx___se_sys_mount+0x10/0x10
[ 176.467084][ T6191] ? do_syscall_64+0xbe/0xf80
[ 176.467102][ T6191] ? __x64_sys_mount+0x20/0xc0
[ 176.467128][ T6191] do_syscall_64+0xfa/0xf80
[ 176.467147][ T6191] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 176.467165][ T6191] ? clear_bhb_loop+0x60/0xb0
[ 176.467188][ T6191] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 176.467206][ T6191] RIP: 0033:0x7f3224590eea
[ 176.467225][ T6191] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 176.467240][ T6191] RSP: 002b:00007f32254dde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 176.467261][ T6191] RAX: ffffffffffffffda RBX: 00007f32254ddef0 RCX: 00007f3224590eea
[ 176.467274][ T6191] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f32254ddeb0
[ 176.467286][ T6191] RBP: 00002000000124c0 R08: 00007f32254ddef0 R09: 0000000000000000
[ 176.467299][ T6191] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 176.467311][ T6191] R13: 00007f32254ddeb0 R14: 0000000000012588 R15: 0000200000000000
[ 176.467344][ T6191]
[ 176.467370][ T6191] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 176.836045][ T6191] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 177.155658][ T6193] loop0: detected capacity change from 0 to 32768
[ 177.204142][ T6193] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 177.232729][ T6193] CPU: 0 UID: 0 PID: 6193 Comm: syz.0.34 Not tainted syzkaller #0 PREEMPT(full)
[ 177.232759][ T6193] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 177.232771][ T6193] Call Trace:
[ 177.232779][ T6193]
[ 177.232797][ T6193] dump_stack_lvl+0x189/0x250
[ 177.232830][ T6193] ? __pfx_dump_stack_lvl+0x10/0x10
[ 177.232853][ T6193] ? __pfx__printk+0x10/0x10
[ 177.232887][ T6193] ? kernfs_path_from_node+0x250/0x290
[ 177.232907][ T6193] ? kernfs_path_from_node+0x2f/0x290
[ 177.232932][ T6193] sysfs_create_dir_ns+0x259/0x280
[ 177.232956][ T6193] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 177.232979][ T6193] ? do_raw_spin_unlock+0x122/0x240
[ 177.233011][ T6193] kobject_add_internal+0x6ab/0xcc0
[ 177.233044][ T6193] kobject_init_and_add+0x125/0x190
[ 177.233072][ T6193] ? __pfx_kobject_init_and_add+0x10/0x10
[ 177.233095][ T6193] ? __raw_spin_lock_init+0x45/0x100
[ 177.233123][ T6193] ? __init_swait_queue_head+0xa9/0x150
[ 177.233154][ T6193] gfs2_sys_fs_add+0x234/0x450
[ 177.233182][ T6193] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 177.233217][ T6193] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 177.233259][ T6193] gfs2_fill_super+0x1388/0x21b0
[ 177.233296][ T6193] ? __pfx_gfs2_fill_super+0x10/0x10
[ 177.233321][ T6193] ? sb_set_blocksize+0x155/0x240
[ 177.233350][ T6193] ? setup_bdev_super+0x4c1/0x5b0
[ 177.233374][ T6193] get_tree_bdev_flags+0x40e/0x4d0
[ 177.233394][ T6193] ? __pfx_gfs2_fill_super+0x10/0x10
[ 177.233413][ T6193] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 177.233430][ T6193] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 177.233471][ T6193] gfs2_get_tree+0x51/0x1e0
[ 177.233494][ T6193] vfs_get_tree+0x92/0x2a0
[ 177.233518][ T6193] do_new_mount+0x302/0xa10
[ 177.233538][ T6193] ? apparmor_capable+0x137/0x1a0
[ 177.233570][ T6193] ? __pfx_do_new_mount+0x10/0x10
[ 177.233593][ T6193] ? ns_capable+0x8a/0xf0
[ 177.233617][ T6193] ? kmem_cache_free+0x197/0x620
[ 177.233650][ T6193] __se_sys_mount+0x313/0x410
[ 177.233681][ T6193] ? __pfx___se_sys_mount+0x10/0x10
[ 177.233709][ T6193] ? do_syscall_64+0xbe/0xf80
[ 177.233725][ T6193] ? __x64_sys_mount+0x20/0xc0
[ 177.233752][ T6193] do_syscall_64+0xfa/0xf80
[ 177.233768][ T6193] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 177.233792][ T6193] ? clear_bhb_loop+0x60/0xb0
[ 177.233814][ T6193] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 177.233829][ T6193] RIP: 0033:0x7f3feff90eea
[ 177.233846][ T6193] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 177.233859][ T6193] RSP: 002b:00007f3ff0d78e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 177.233880][ T6193] RAX: ffffffffffffffda RBX: 00007f3ff0d78ef0 RCX: 00007f3feff90eea
[ 177.233892][ T6193] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f3ff0d78eb0
[ 177.233905][ T6193] RBP: 00002000000124c0 R08: 00007f3ff0d78ef0 R09: 0000000000000000
[ 177.233917][ T6193] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 177.233927][ T6193] R13: 00007f3ff0d78eb0 R14: 0000000000012588 R15: 0000200000000000
[ 177.233959][ T6193]
[ 177.234101][ T6193] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 177.602382][ T6193] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 178.008494][ T6200] loop3: detected capacity change from 0 to 32768
[ 178.056434][ T6200] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 178.063969][ T6200] CPU: 0 UID: 0 PID: 6200 Comm: syz.3.35 Not tainted syzkaller #0 PREEMPT(full)
[ 178.063996][ T6200] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 178.064007][ T6200] Call Trace:
[ 178.064016][ T6200]
[ 178.064024][ T6200] dump_stack_lvl+0x189/0x250
[ 178.064058][ T6200] ? __pfx_dump_stack_lvl+0x10/0x10
[ 178.064083][ T6200] ? __pfx__printk+0x10/0x10
[ 178.064118][ T6200] ? kernfs_path_from_node+0x250/0x290
[ 178.064138][ T6200] ? kernfs_path_from_node+0x2f/0x290
[ 178.064164][ T6200] sysfs_create_dir_ns+0x259/0x280
[ 178.064189][ T6200] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 178.064211][ T6200] ? do_raw_spin_unlock+0x122/0x240
[ 178.064244][ T6200] kobject_add_internal+0x6ab/0xcc0
[ 178.064277][ T6200] kobject_init_and_add+0x125/0x190
[ 178.064306][ T6200] ? __pfx_kobject_init_and_add+0x10/0x10
[ 178.064329][ T6200] ? __raw_spin_lock_init+0x45/0x100
[ 178.064357][ T6200] ? __init_swait_queue_head+0xa9/0x150
[ 178.064389][ T6200] gfs2_sys_fs_add+0x234/0x450
[ 178.064417][ T6200] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 178.064452][ T6200] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 178.064496][ T6200] gfs2_fill_super+0x1388/0x21b0
[ 178.064542][ T6200] ? __pfx_gfs2_fill_super+0x10/0x10
[ 178.064567][ T6200] ? sb_set_blocksize+0x155/0x240
[ 178.064591][ T6200] ? setup_bdev_super+0x4c1/0x5b0
[ 178.064615][ T6200] get_tree_bdev_flags+0x40e/0x4d0
[ 178.064636][ T6200] ? __pfx_gfs2_fill_super+0x10/0x10
[ 178.064655][ T6200] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 178.064672][ T6200] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 178.064712][ T6200] gfs2_get_tree+0x51/0x1e0
[ 178.064734][ T6200] vfs_get_tree+0x92/0x2a0
[ 178.064757][ T6200] do_new_mount+0x302/0xa10
[ 178.064777][ T6200] ? apparmor_capable+0x137/0x1a0
[ 178.064809][ T6200] ? __pfx_do_new_mount+0x10/0x10
[ 178.064832][ T6200] ? ns_capable+0x8a/0xf0
[ 178.064855][ T6200] ? kmem_cache_free+0x197/0x620
[ 178.064888][ T6200] __se_sys_mount+0x313/0x410
[ 178.064920][ T6200] ? __pfx___se_sys_mount+0x10/0x10
[ 178.064948][ T6200] ? do_syscall_64+0xbe/0xf80
[ 178.064965][ T6200] ? __x64_sys_mount+0x20/0xc0
[ 178.064992][ T6200] do_syscall_64+0xfa/0xf80
[ 178.065011][ T6200] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 178.065030][ T6200] ? clear_bhb_loop+0x60/0xb0
[ 178.065053][ T6200] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 178.065072][ T6200] RIP: 0033:0x7f92ae190eea
[ 178.065091][ T6200] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 178.065106][ T6200] RSP: 002b:00007f92af00ee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 178.065128][ T6200] RAX: ffffffffffffffda RBX: 00007f92af00eef0 RCX: 00007f92ae190eea
[ 178.065142][ T6200] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f92af00eeb0
[ 178.065155][ T6200] RBP: 00002000000124c0 R08: 00007f92af00eef0 R09: 0000000000000000
[ 178.065167][ T6200] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 178.065179][ T6200] R13: 00007f92af00eeb0 R14: 0000000000012588 R15: 0000200000000000
[ 178.065213][ T6200]
[ 178.065244][ T6200] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 178.414734][ T6200] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 178.420752][ T6203] loop1: detected capacity change from 0 to 32768
[ 178.495494][ T6203] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 178.526142][ T6203] CPU: 1 UID: 0 PID: 6203 Comm: syz.1.36 Not tainted syzkaller #0 PREEMPT(full)
[ 178.526169][ T6203] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 178.526179][ T6203] Call Trace:
[ 178.526187][ T6203]
[ 178.526195][ T6203] dump_stack_lvl+0x189/0x250
[ 178.526227][ T6203] ? __pfx_dump_stack_lvl+0x10/0x10
[ 178.526250][ T6203] ? __pfx__printk+0x10/0x10
[ 178.526283][ T6203] ? kernfs_path_from_node+0x250/0x290
[ 178.526302][ T6203] ? kernfs_path_from_node+0x2f/0x290
[ 178.526325][ T6203] sysfs_create_dir_ns+0x259/0x280
[ 178.526349][ T6203] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 178.526370][ T6203] ? do_raw_spin_unlock+0x122/0x240
[ 178.526401][ T6203] kobject_add_internal+0x6ab/0xcc0
[ 178.526439][ T6203] kobject_init_and_add+0x125/0x190
[ 178.526466][ T6203] ? __pfx_kobject_init_and_add+0x10/0x10
[ 178.526488][ T6203] ? __raw_spin_lock_init+0x45/0x100
[ 178.526515][ T6203] ? __init_swait_queue_head+0xa9/0x150
[ 178.526544][ T6203] gfs2_sys_fs_add+0x234/0x450
[ 178.526572][ T6203] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 178.526605][ T6203] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 178.526645][ T6203] gfs2_fill_super+0x1388/0x21b0
[ 178.526681][ T6203] ? __pfx_gfs2_fill_super+0x10/0x10
[ 178.526705][ T6203] ? sb_set_blocksize+0x155/0x240
[ 178.526730][ T6203] ? setup_bdev_super+0x4c1/0x5b0
[ 178.526752][ T6203] get_tree_bdev_flags+0x40e/0x4d0
[ 178.526771][ T6203] ? __pfx_gfs2_fill_super+0x10/0x10
[ 178.526797][ T6203] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 178.526814][ T6203] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 178.526852][ T6203] gfs2_get_tree+0x51/0x1e0
[ 178.526874][ T6203] vfs_get_tree+0x92/0x2a0
[ 178.526896][ T6203] do_new_mount+0x302/0xa10
[ 178.526917][ T6203] ? apparmor_capable+0x137/0x1a0
[ 178.526946][ T6203] ? __pfx_do_new_mount+0x10/0x10
[ 178.526968][ T6203] ? ns_capable+0x8a/0xf0
[ 178.526991][ T6203] ? kmem_cache_free+0x197/0x620
[ 178.527022][ T6203] __se_sys_mount+0x313/0x410
[ 178.527052][ T6203] ? __pfx___se_sys_mount+0x10/0x10
[ 178.527080][ T6203] ? do_syscall_64+0xbe/0xf80
[ 178.527095][ T6203] ? __x64_sys_mount+0x20/0xc0
[ 178.527120][ T6203] do_syscall_64+0xfa/0xf80
[ 178.527139][ T6203] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 178.527155][ T6203] ? clear_bhb_loop+0x60/0xb0
[ 178.527178][ T6203] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 178.527196][ T6203] RIP: 0033:0x7f3224590eea
[ 178.527213][ T6203] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 178.527228][ T6203] RSP: 002b:00007f32254dde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 178.527248][ T6203] RAX: ffffffffffffffda RBX: 00007f32254ddef0 RCX: 00007f3224590eea
[ 178.527261][ T6203] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f32254ddeb0
[ 178.527273][ T6203] RBP: 00002000000124c0 R08: 00007f32254ddef0 R09: 0000000000000000
[ 178.527284][ T6203] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 178.527296][ T6203] R13: 00007f32254ddeb0 R14: 0000000000012588 R15: 0000200000000000
[ 178.527329][ T6203]
[ 178.527432][ T6203] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 178.825447][ T6205] loop2: detected capacity change from 0 to 32768
[ 178.856267][ T6203] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 178.953752][ T6205] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 179.022500][ T6205] CPU: 0 UID: 0 PID: 6205 Comm: syz.2.37 Not tainted syzkaller #0 PREEMPT(full)
[ 179.022542][ T6205] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 179.022554][ T6205] Call Trace:
[ 179.022563][ T6205]
[ 179.022573][ T6205] dump_stack_lvl+0x189/0x250
[ 179.022605][ T6205] ? __pfx_dump_stack_lvl+0x10/0x10
[ 179.022629][ T6205] ? __pfx__printk+0x10/0x10
[ 179.022664][ T6205] ? kernfs_path_from_node+0x250/0x290
[ 179.022684][ T6205] ? kernfs_path_from_node+0x2f/0x290
[ 179.022709][ T6205] sysfs_create_dir_ns+0x259/0x280
[ 179.022733][ T6205] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 179.022757][ T6205] ? do_raw_spin_unlock+0x122/0x240
[ 179.022787][ T6205] kobject_add_internal+0x6ab/0xcc0
[ 179.022820][ T6205] kobject_init_and_add+0x125/0x190
[ 179.022848][ T6205] ? __pfx_kobject_init_and_add+0x10/0x10
[ 179.022870][ T6205] ? __raw_spin_lock_init+0x45/0x100
[ 179.022898][ T6205] ? __init_swait_queue_head+0xa9/0x150
[ 179.022928][ T6205] gfs2_sys_fs_add+0x234/0x450
[ 179.022957][ T6205] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 179.022992][ T6205] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 179.023041][ T6205] gfs2_fill_super+0x1388/0x21b0
[ 179.023079][ T6205] ? __pfx_gfs2_fill_super+0x10/0x10
[ 179.023104][ T6205] ? sb_set_blocksize+0x155/0x240
[ 179.023128][ T6205] ? setup_bdev_super+0x4c1/0x5b0
[ 179.023152][ T6205] get_tree_bdev_flags+0x40e/0x4d0
[ 179.023171][ T6205] ? __pfx_gfs2_fill_super+0x10/0x10
[ 179.023191][ T6205] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 179.023208][ T6205] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 179.023249][ T6205] gfs2_get_tree+0x51/0x1e0
[ 179.023271][ T6205] vfs_get_tree+0x92/0x2a0
[ 179.023294][ T6205] do_new_mount+0x302/0xa10
[ 179.023315][ T6205] ? apparmor_capable+0x137/0x1a0
[ 179.023356][ T6205] ? __pfx_do_new_mount+0x10/0x10
[ 179.023379][ T6205] ? ns_capable+0x8a/0xf0
[ 179.023404][ T6205] ? kmem_cache_free+0x197/0x620
[ 179.023437][ T6205] __se_sys_mount+0x313/0x410
[ 179.023469][ T6205] ? __pfx___se_sys_mount+0x10/0x10
[ 179.023498][ T6205] ? do_syscall_64+0xbe/0xf80
[ 179.023515][ T6205] ? __x64_sys_mount+0x20/0xc0
[ 179.023685][ T6205] do_syscall_64+0xfa/0xf80
[ 179.023705][ T6205] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 179.023724][ T6205] ? clear_bhb_loop+0x60/0xb0
[ 179.023747][ T6205] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 179.023765][ T6205] RIP: 0033:0x7f8831790eea
[ 179.023781][ T6205] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 179.023793][ T6205] RSP: 002b:00007f8832621e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 179.023812][ T6205] RAX: ffffffffffffffda RBX: 00007f8832621ef0 RCX: 00007f8831790eea
[ 179.023826][ T6205] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f8832621eb0
[ 179.023838][ T6205] RBP: 00002000000124c0 R08: 00007f8832621ef0 R09: 0000000000000000
[ 179.023850][ T6205] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 179.023862][ T6205] R13: 00007f8832621eb0 R14: 0000000000012588 R15: 0000200000000000
[ 179.023896][ T6205]
[ 179.232030][ T6205] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 179.287222][ T5974] gfs2: fsid=syz:syz.0: warning: assertion "gfs2_log_is_empty(sdp)" failed - function = gfs2_make_fs_ro, file = fs/gfs2/super.c, line = 564
[ 179.320920][ T6052] gfs2: fsid=syz:syz.0: file system withdrawn
[ 179.454070][ T6205] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 179.454663][ T5974] CPU: 1 UID: 0 PID: 5974 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 179.454685][ T5974] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 179.454695][ T5974] Call Trace:
[ 179.454702][ T5974]
[ 179.454709][ T5974] dump_stack_lvl+0x189/0x250
[ 179.454739][ T5974] ? __pfx_dump_stack_lvl+0x10/0x10
[ 179.454760][ T5974] ? __pfx__printk+0x10/0x10
[ 179.454790][ T5974] ? do_raw_spin_unlock+0x122/0x240
[ 179.454826][ T5974] gfs2_assert_warn_i+0x194/0x2c0
[ 179.454852][ T5974] gfs2_make_fs_ro+0x2f5/0x300
[ 179.454875][ T5974] ? __pfx_gfs2_make_fs_ro+0x10/0x10
[ 179.454891][ T5974] ? do_raw_spin_lock+0x121/0x290
[ 179.454913][ T5974] ? __pfx_autoremove_wake_function+0x10/0x10
[ 179.454944][ T5974] ? do_raw_spin_unlock+0x122/0x240
[ 179.454971][ T5974] gfs2_put_super+0x220/0x860
[ 179.454997][ T5974] ? __pfx_gfs2_put_super+0x10/0x10
[ 179.455016][ T5974] generic_shutdown_super+0x135/0x2c0
[ 179.455045][ T5974] kill_block_super+0x44/0x90
[ 179.455064][ T5974] deactivate_locked_super+0xbc/0x130
[ 179.455089][ T5974] cleanup_mnt+0x425/0x4c0
[ 179.455114][ T5974] ? lockdep_hardirqs_on+0x98/0x140
[ 179.455134][ T5974] task_work_run+0x1d4/0x260
[ 179.455161][ T5974] ? __pfx_task_work_run+0x10/0x10
[ 179.455189][ T5974] ? exit_to_user_mode_loop+0x55/0x4f0
[ 179.455212][ T5974] exit_to_user_mode_loop+0xff/0x4f0
[ 179.455228][ T5974] ? rcu_is_watching+0x15/0xb0
[ 179.455254][ T5974] do_syscall_64+0x2e3/0xf80
[ 179.455271][ T5974] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 179.455288][ T5974] ? clear_bhb_loop+0x60/0xb0
[ 179.455309][ T5974] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 179.455325][ T5974] RIP: 0033:0x7f32fc990a77
[ 179.455341][ T5974] Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
[ 179.455354][ T5974] RSP: 002b:00007ffc977fb9d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 179.455373][ T5974] RAX: 0000000000000000 RBX: 00007f32fca13d7d RCX: 00007f32fc990a77
[ 179.455384][ T5974] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc977fba90
[ 179.455394][ T5974] RBP: 00007ffc977fba90 R08: 0000000000000000 R09: 0000000000000000
[ 179.455405][ T5974] R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc977fcb20
[ 179.455415][ T5974] R13: 00007f32fca13d7d R14: 000000000002a57f R15: 00007ffc977fcb60
[ 179.455445][ T5974]
[ 179.551283][ T6210] loop0: detected capacity change from 0 to 32768
[ 179.771155][ T6210] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 179.839611][ T6210] CPU: 0 UID: 0 PID: 6210 Comm: syz.0.38 Not tainted syzkaller #0 PREEMPT(full)
[ 179.839638][ T6210] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 179.839649][ T6210] Call Trace:
[ 179.839657][ T6210]
[ 179.839666][ T6210] dump_stack_lvl+0x189/0x250
[ 179.839699][ T6210] ? __pfx_dump_stack_lvl+0x10/0x10
[ 179.839723][ T6210] ? __pfx__printk+0x10/0x10
[ 179.839756][ T6210] ? kernfs_path_from_node+0x250/0x290
[ 179.839776][ T6210] ? kernfs_path_from_node+0x2f/0x290
[ 179.839800][ T6210] sysfs_create_dir_ns+0x259/0x280
[ 179.839822][ T6210] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 179.839845][ T6210] ? do_raw_spin_unlock+0x122/0x240
[ 179.839876][ T6210] kobject_add_internal+0x6ab/0xcc0
[ 179.839907][ T6210] kobject_init_and_add+0x125/0x190
[ 179.839934][ T6210] ? __pfx_kobject_init_and_add+0x10/0x10
[ 179.839957][ T6210] ? __raw_spin_lock_init+0x45/0x100
[ 179.839984][ T6210] ? __init_swait_queue_head+0xa9/0x150
[ 179.840014][ T6210] gfs2_sys_fs_add+0x234/0x450
[ 179.840042][ T6210] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 179.840076][ T6210] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 179.840118][ T6210] gfs2_fill_super+0x1388/0x21b0
[ 179.840156][ T6210] ? __pfx_gfs2_fill_super+0x10/0x10
[ 179.840179][ T6210] ? sb_set_blocksize+0x155/0x240
[ 179.840202][ T6210] ? setup_bdev_super+0x4c1/0x5b0
[ 179.840225][ T6210] get_tree_bdev_flags+0x40e/0x4d0
[ 179.840245][ T6210] ? __pfx_gfs2_fill_super+0x10/0x10
[ 179.840263][ T6210] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 179.840280][ T6210] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 179.840320][ T6210] gfs2_get_tree+0x51/0x1e0
[ 179.840342][ T6210] vfs_get_tree+0x92/0x2a0
[ 179.840365][ T6210] do_new_mount+0x302/0xa10
[ 179.840385][ T6210] ? apparmor_capable+0x137/0x1a0
[ 179.840415][ T6210] ? __pfx_do_new_mount+0x10/0x10
[ 179.840437][ T6210] ? ns_capable+0x8a/0xf0
[ 179.840461][ T6210] ? kmem_cache_free+0x197/0x620
[ 179.840492][ T6210] __se_sys_mount+0x313/0x410
[ 179.840523][ T6210] ? __pfx___se_sys_mount+0x10/0x10
[ 179.840551][ T6210] ? do_syscall_64+0xbe/0xf80
[ 179.840574][ T6210] ? __x64_sys_mount+0x20/0xc0
[ 179.840600][ T6210] do_syscall_64+0xfa/0xf80
[ 179.840619][ T6210] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 179.840637][ T6210] ? clear_bhb_loop+0x60/0xb0
[ 179.840660][ T6210] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 179.840678][ T6210] RIP: 0033:0x7f3feff90eea
[ 179.840695][ T6210] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 179.840710][ T6210] RSP: 002b:00007f3ff0d78e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 179.840731][ T6210] RAX: ffffffffffffffda RBX: 00007f3ff0d78ef0 RCX: 00007f3feff90eea
[ 179.840744][ T6210] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f3ff0d78eb0
[ 179.840757][ T6210] RBP: 00002000000124c0 R08: 00007f3ff0d78ef0 R09: 0000000000000000
[ 179.840769][ T6210] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 179.840781][ T6210] R13: 00007f3ff0d78eb0 R14: 0000000000012588 R15: 0000200000000000
[ 179.840813][ T6210]
[ 179.840840][ T6210] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 180.236918][ T6210] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/12/07 14:51:59 executed programs: 34
[ 180.706250][ T6222] loop3: detected capacity change from 0 to 32768
[ 180.765372][ T6222] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 180.795691][ T6222] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 180.841336][ T6222] gfs2: fsid=syz:syz.0: journal 0 mapped with 9 extents in 0ms
[ 180.881431][ T9] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 180.917069][ T9] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 181.100196][ T6220] loop1: detected capacity change from 0 to 32768
[ 181.120632][ T9] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 203ms
[ 181.148149][ T9] gfs2: fsid=syz:syz.0: jid=0: Done
[ 181.159904][ T6220] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 181.167901][ T6220] CPU: 0 UID: 0 PID: 6220 Comm: syz.1.39 Not tainted syzkaller #0 PREEMPT(full)
[ 181.167928][ T6220] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 181.167939][ T6220] Call Trace:
[ 181.167946][ T6220]
[ 181.167954][ T6220] dump_stack_lvl+0x189/0x250
[ 181.167987][ T6220] ? __pfx_dump_stack_lvl+0x10/0x10
[ 181.168011][ T6220] ? __pfx__printk+0x10/0x10
[ 181.168045][ T6220] ? kernfs_path_from_node+0x250/0x290
[ 181.168065][ T6220] ? kernfs_path_from_node+0x2f/0x290
[ 181.168090][ T6220] sysfs_create_dir_ns+0x259/0x280
[ 181.168112][ T6220] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 181.168134][ T6220] ? do_raw_spin_unlock+0x122/0x240
[ 181.168166][ T6220] kobject_add_internal+0x6ab/0xcc0
[ 181.168198][ T6220] kobject_init_and_add+0x125/0x190
[ 181.168225][ T6220] ? __pfx_kobject_init_and_add+0x10/0x10
[ 181.168248][ T6220] ? __raw_spin_lock_init+0x45/0x100
[ 181.168276][ T6220] ? __init_swait_queue_head+0xa9/0x150
[ 181.168307][ T6220] gfs2_sys_fs_add+0x234/0x450
[ 181.168335][ T6220] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 181.168369][ T6220] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 181.168412][ T6220] gfs2_fill_super+0x1388/0x21b0
[ 181.168448][ T6220] ? __pfx_gfs2_fill_super+0x10/0x10
[ 181.168473][ T6220] ? sb_set_blocksize+0x155/0x240
[ 181.168506][ T6220] ? setup_bdev_super+0x4c1/0x5b0
[ 181.168529][ T6220] get_tree_bdev_flags+0x40e/0x4d0
[ 181.168549][ T6220] ? __pfx_gfs2_fill_super+0x10/0x10
[ 181.168568][ T6220] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 181.168585][ T6220] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 181.168633][ T6220] gfs2_get_tree+0x51/0x1e0
[ 181.168655][ T6220] vfs_get_tree+0x92/0x2a0
[ 181.168678][ T6220] do_new_mount+0x302/0xa10
[ 181.168699][ T6220] ? apparmor_capable+0x137/0x1a0
[ 181.168729][ T6220] ? __pfx_do_new_mount+0x10/0x10
[ 181.168751][ T6220] ? ns_capable+0x8a/0xf0
[ 181.168774][ T6220] ? kmem_cache_free+0x197/0x620
[ 181.168806][ T6220] __se_sys_mount+0x313/0x410
[ 181.168836][ T6220] ? __pfx___se_sys_mount+0x10/0x10
[ 181.168865][ T6220] ? do_syscall_64+0xbe/0xf80
[ 181.168881][ T6220] ? __x64_sys_mount+0x20/0xc0
[ 181.168907][ T6220] do_syscall_64+0xfa/0xf80
[ 181.168925][ T6220] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 181.168944][ T6220] ? clear_bhb_loop+0x60/0xb0
[ 181.168967][ T6220] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 181.168985][ T6220] RIP: 0033:0x7f3224590eea
[ 181.169003][ T6220] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 181.169018][ T6220] RSP: 002b:00007f32254bce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 181.169040][ T6220] RAX: ffffffffffffffda RBX: 00007f32254bcef0 RCX: 00007f3224590eea
[ 181.169054][ T6220] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f32254bceb0
[ 181.169066][ T6220] RBP: 00002000000124c0 R08: 00007f32254bcef0 R09: 0000000000000000
[ 181.169078][ T6220] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 181.169089][ T6220] R13: 00007f32254bceb0 R14: 0000000000012588 R15: 0000200000000000
[ 181.169123][ T6220]
[ 181.169149][ T6220] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 181.516098][ T6222] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 181.553240][ T6220] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 181.747653][ T6222] gfs2: fsid=syz:syz.0: found 1 quota changes
[ 181.813321][ T5972] syz-executor: attempt to access beyond end of device
[ 181.813321][ T5972] loop3: rw=8400897, sector=68719479080, nr_sectors = 8 limit=32768
[ 181.875134][ T5972] Buffer I/O error on dev loop3, logical block 8589934885, lost async page write
[ 181.890781][ T6226] loop0: detected capacity change from 0 to 32768
[ 181.897592][ T5972] gfs2: fsid=syz:syz.0: fatal: I/O error - block = 8589934885, function = gfs2_ail1_start_one, file = fs/gfs2/log.c, line = 116
[ 181.911630][ T5972] CPU: 0 UID: 0 PID: 5972 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 181.911654][ T5972] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 181.911663][ T5972] Call Trace:
[ 181.911671][ T5972]
[ 181.911679][ T5972] dump_stack_lvl+0x189/0x250
[ 181.911709][ T5972] ? __pfx_dump_stack_lvl+0x10/0x10
[ 181.911733][ T5972] ? do_raw_spin_lock+0x121/0x290
[ 181.911756][ T5972] ? gfs2_ail1_flush+0xce2/0xfb0
[ 181.911783][ T5972] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 181.911815][ T5972] gfs2_withdraw+0xc3/0x1b0
[ 181.911833][ T5972] gfs2_ail1_flush+0x97b/0xfb0
[ 181.911875][ T5972] ? __pfx_gfs2_ail1_flush+0x10/0x10
[ 181.911898][ T5972] ? __lock_acquire+0x6b6/0x2cf0
[ 181.911925][ T5972] empty_ail1_list+0x13d/0x260
[ 181.911947][ T5972] ? __pfx_empty_ail1_list+0x10/0x10
[ 181.912012][ T5972] ? do_raw_spin_unlock+0x122/0x240
[ 181.912041][ T5972] gfs2_log_flush+0x1de3/0x24c0
[ 181.912074][ T5972] ? __pfx_gfs2_log_flush+0x10/0x10
[ 181.912101][ T5972] ? __pfx_call_rcu+0x10/0x10
[ 181.912123][ T5972] ? radix_tree_delete_item+0x2b6/0x400
[ 181.912153][ T5972] gfs2_kill_sb+0x5c/0x430
[ 181.912172][ T5972] ? shrinker_free+0x2ce/0x3e0
[ 181.912197][ T5972] deactivate_locked_super+0xbc/0x130
[ 181.912225][ T5972] cleanup_mnt+0x425/0x4c0
[ 181.912252][ T5972] ? lockdep_hardirqs_on+0x98/0x140
[ 181.912273][ T5972] task_work_run+0x1d4/0x260
[ 181.912302][ T5972] ? __pfx_task_work_run+0x10/0x10
[ 181.912333][ T5972] ? exit_to_user_mode_loop+0x55/0x4f0
[ 181.912358][ T5972] exit_to_user_mode_loop+0xff/0x4f0
[ 181.912374][ T5972] ? rcu_is_watching+0x15/0xb0
[ 181.912400][ T5972] do_syscall_64+0x2e3/0xf80
[ 181.912420][ T5972] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 181.912439][ T5972] ? clear_bhb_loop+0x60/0xb0
[ 181.912461][ T5972] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 181.912479][ T5972] RIP: 0033:0x7f92ae190a77
[ 181.912497][ T5972] Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
[ 181.912511][ T5972] RSP: 002b:00007fffe4df7ae8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 181.912531][ T5972] RAX: 0000000000000000 RBX: 00007f92ae213d7d RCX: 00007f92ae190a77
[ 181.912543][ T5972] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffe4df7ba0
[ 181.912554][ T5972] RBP: 00007fffe4df7ba0 R08: 0000000000000000 R09: 0000000000000000
[ 181.912566][ T5972] R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fffe4df8c30
[ 181.912577][ T5972] R13: 00007f92ae213d7d R14: 000000000002c5ef R15: 00007fffe4df8c70
[ 181.912610][ T5972]
[ 181.912617][ T5972] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 182.209622][ T6226] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 182.254031][ T6226] CPU: 1 UID: 0 PID: 6226 Comm: syz.0.41 Not tainted syzkaller #0 PREEMPT(full)
[ 182.254059][ T6226] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 182.254070][ T6226] Call Trace:
[ 182.254078][ T6226]
[ 182.254087][ T6226] dump_stack_lvl+0x189/0x250
[ 182.254120][ T6226] ? __pfx_dump_stack_lvl+0x10/0x10
[ 182.254144][ T6226] ? __pfx__printk+0x10/0x10
[ 182.254178][ T6226] ? kernfs_path_from_node+0x250/0x290
[ 182.254198][ T6226] ? kernfs_path_from_node+0x2f/0x290
[ 182.254223][ T6226] sysfs_create_dir_ns+0x259/0x280
[ 182.254247][ T6226] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 182.254269][ T6226] ? do_raw_spin_unlock+0x122/0x240
[ 182.254301][ T6226] kobject_add_internal+0x6ab/0xcc0
[ 182.254333][ T6226] kobject_init_and_add+0x125/0x190
[ 182.254361][ T6226] ? __pfx_kobject_init_and_add+0x10/0x10
[ 182.254384][ T6226] ? __raw_spin_lock_init+0x45/0x100
[ 182.254412][ T6226] ? __init_swait_queue_head+0xa9/0x150
[ 182.254443][ T6226] gfs2_sys_fs_add+0x234/0x450
[ 182.254471][ T6226] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 182.254514][ T6226] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 182.254556][ T6226] gfs2_fill_super+0x1388/0x21b0
[ 182.254594][ T6226] ? __pfx_gfs2_fill_super+0x10/0x10
[ 182.254619][ T6226] ? sb_set_blocksize+0x155/0x240
[ 182.254642][ T6226] ? setup_bdev_super+0x4c1/0x5b0
[ 182.254667][ T6226] get_tree_bdev_flags+0x40e/0x4d0
[ 182.254686][ T6226] ? __pfx_gfs2_fill_super+0x10/0x10
[ 182.254705][ T6226] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 182.254721][ T6226] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 182.254759][ T6226] gfs2_get_tree+0x51/0x1e0
[ 182.254782][ T6226] vfs_get_tree+0x92/0x2a0
[ 182.254805][ T6226] do_new_mount+0x302/0xa10
[ 182.254826][ T6226] ? apparmor_capable+0x137/0x1a0
[ 182.254857][ T6226] ? __pfx_do_new_mount+0x10/0x10
[ 182.254880][ T6226] ? ns_capable+0x8a/0xf0
[ 182.254903][ T6226] ? kmem_cache_free+0x197/0x620
[ 182.254935][ T6226] __se_sys_mount+0x313/0x410
[ 182.254965][ T6226] ? __pfx___se_sys_mount+0x10/0x10
[ 182.254994][ T6226] ? do_syscall_64+0xbe/0xf80
[ 182.255011][ T6226] ? __x64_sys_mount+0x20/0xc0
[ 182.255036][ T6226] do_syscall_64+0xfa/0xf80
[ 182.255056][ T6226] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 182.255074][ T6226] ? clear_bhb_loop+0x60/0xb0
[ 182.255098][ T6226] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 182.255117][ T6226] RIP: 0033:0x7f3feff90eea
[ 182.255134][ T6226] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 182.255149][ T6226] RSP: 002b:00007f3ff0d78e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 182.255169][ T6226] RAX: ffffffffffffffda RBX: 00007f3ff0d78ef0 RCX: 00007f3feff90eea
[ 182.255183][ T6226] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f3ff0d78eb0
[ 182.255195][ T6226] RBP: 00002000000124c0 R08: 00007f3ff0d78ef0 R09: 0000000000000000
[ 182.255207][ T6226] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 182.255219][ T6226] R13: 00007f3ff0d78eb0 R14: 0000000000012588 R15: 0000200000000000
[ 182.255252][ T6226]
[ 182.255280][ T6226] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 182.287712][ T6228] loop4: detected capacity change from 0 to 32768
[ 182.292753][ T6226] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 182.595381][ T6230] loop2: detected capacity change from 0 to 32768
[ 182.630697][ T6228] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 182.688148][ T6228] CPU: 1 UID: 0 PID: 6228 Comm: syz.4.31 Not tainted syzkaller #0 PREEMPT(full)
[ 182.688175][ T6228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 182.688186][ T6228] Call Trace:
[ 182.688193][ T6228]
[ 182.688201][ T6228] dump_stack_lvl+0x189/0x250
[ 182.688232][ T6228] ? __pfx_dump_stack_lvl+0x10/0x10
[ 182.688253][ T6228] ? __pfx__printk+0x10/0x10
[ 182.688286][ T6228] ? kernfs_path_from_node+0x250/0x290
[ 182.688306][ T6228] ? kernfs_path_from_node+0x2f/0x290
[ 182.688331][ T6228] sysfs_create_dir_ns+0x259/0x280
[ 182.688355][ T6228] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 182.688376][ T6228] ? do_raw_spin_unlock+0x122/0x240
[ 182.688406][ T6228] kobject_add_internal+0x6ab/0xcc0
[ 182.688438][ T6228] kobject_init_and_add+0x125/0x190
[ 182.688465][ T6228] ? __pfx_kobject_init_and_add+0x10/0x10
[ 182.688488][ T6228] ? __raw_spin_lock_init+0x45/0x100
[ 182.688515][ T6228] ? __init_swait_queue_head+0xa9/0x150
[ 182.688554][ T6228] gfs2_sys_fs_add+0x234/0x450
[ 182.688581][ T6228] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 182.688614][ T6228] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 182.688655][ T6228] gfs2_fill_super+0x1388/0x21b0
[ 182.688690][ T6228] ? __pfx_gfs2_fill_super+0x10/0x10
[ 182.688713][ T6228] ? sb_set_blocksize+0x155/0x240
[ 182.688737][ T6228] ? setup_bdev_super+0x4c1/0x5b0
[ 182.688760][ T6228] get_tree_bdev_flags+0x40e/0x4d0
[ 182.688779][ T6228] ? __pfx_gfs2_fill_super+0x10/0x10
[ 182.688797][ T6228] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 182.688814][ T6228] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 182.688853][ T6228] gfs2_get_tree+0x51/0x1e0
[ 182.688876][ T6228] vfs_get_tree+0x92/0x2a0
[ 182.688899][ T6228] do_new_mount+0x302/0xa10
[ 182.688919][ T6228] ? apparmor_capable+0x137/0x1a0
[ 182.688949][ T6228] ? __pfx_do_new_mount+0x10/0x10
[ 182.688971][ T6228] ? ns_capable+0x8a/0xf0
[ 182.688995][ T6228] ? kmem_cache_free+0x197/0x620
[ 182.689027][ T6228] __se_sys_mount+0x313/0x410
[ 182.689058][ T6228] ? __pfx___se_sys_mount+0x10/0x10
[ 182.689084][ T6228] ? do_syscall_64+0xbe/0xf80
[ 182.689099][ T6228] ? __x64_sys_mount+0x20/0xc0
[ 182.689124][ T6228] do_syscall_64+0xfa/0xf80
[ 182.689143][ T6228] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 182.689160][ T6228] ? clear_bhb_loop+0x60/0xb0
[ 182.689183][ T6228] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 182.689202][ T6228] RIP: 0033:0x7f32fc990eea
[ 182.689220][ T6228] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 182.689235][ T6228] RSP: 002b:00007f32fd8fce68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 182.689256][ T6228] RAX: ffffffffffffffda RBX: 00007f32fd8fcef0 RCX: 00007f32fc990eea
[ 182.689269][ T6228] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f32fd8fceb0
[ 182.689281][ T6228] RBP: 00002000000124c0 R08: 00007f32fd8fcef0 R09: 0000000000000000
[ 182.689293][ T6228] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 182.689305][ T6228] R13: 00007f32fd8fceb0 R14: 0000000000012588 R15: 0000200000000000
[ 182.689339][ T6228]
[ 182.689366][ T6228] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 183.028792][ T6228] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 183.028968][ T6230] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 183.084358][ T6230] CPU: 1 UID: 0 PID: 6230 Comm: syz.2.42 Not tainted syzkaller #0 PREEMPT(full)
[ 183.084386][ T6230] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 183.084398][ T6230] Call Trace:
[ 183.084406][ T6230]
[ 183.084415][ T6230] dump_stack_lvl+0x189/0x250
[ 183.084448][ T6230] ? __pfx_dump_stack_lvl+0x10/0x10
[ 183.084471][ T6230] ? __pfx__printk+0x10/0x10
[ 183.084514][ T6230] ? kernfs_path_from_node+0x250/0x290
[ 183.084534][ T6230] ? kernfs_path_from_node+0x2f/0x290
[ 183.084559][ T6230] sysfs_create_dir_ns+0x259/0x280
[ 183.084583][ T6230] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 183.084606][ T6230] ? do_raw_spin_unlock+0x122/0x240
[ 183.084639][ T6230] kobject_add_internal+0x6ab/0xcc0
[ 183.084671][ T6230] kobject_init_and_add+0x125/0x190
[ 183.084699][ T6230] ? __pfx_kobject_init_and_add+0x10/0x10
[ 183.084722][ T6230] ? __raw_spin_lock_init+0x45/0x100
[ 183.084748][ T6230] ? __init_swait_queue_head+0xa9/0x150
[ 183.084778][ T6230] gfs2_sys_fs_add+0x234/0x450
[ 183.084806][ T6230] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 183.084841][ T6230] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 183.084884][ T6230] gfs2_fill_super+0x1388/0x21b0
[ 183.084922][ T6230] ? __pfx_gfs2_fill_super+0x10/0x10
[ 183.084947][ T6230] ? sb_set_blocksize+0x155/0x240
[ 183.084970][ T6230] ? setup_bdev_super+0x4c1/0x5b0
[ 183.084994][ T6230] get_tree_bdev_flags+0x40e/0x4d0
[ 183.085014][ T6230] ? __pfx_gfs2_fill_super+0x10/0x10
[ 183.085033][ T6230] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 183.085051][ T6230] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 183.085090][ T6230] gfs2_get_tree+0x51/0x1e0
[ 183.085113][ T6230] vfs_get_tree+0x92/0x2a0
[ 183.085137][ T6230] do_new_mount+0x302/0xa10
[ 183.085158][ T6230] ? apparmor_capable+0x137/0x1a0
[ 183.085188][ T6230] ? __pfx_do_new_mount+0x10/0x10
[ 183.085212][ T6230] ? ns_capable+0x8a/0xf0
[ 183.085236][ T6230] ? kmem_cache_free+0x197/0x620
[ 183.085268][ T6230] __se_sys_mount+0x313/0x410
[ 183.085299][ T6230] ? __pfx___se_sys_mount+0x10/0x10
[ 183.085328][ T6230] ? do_syscall_64+0xbe/0xf80
[ 183.085344][ T6230] ? __x64_sys_mount+0x20/0xc0
[ 183.085392][ T6230] do_syscall_64+0xfa/0xf80
[ 183.085411][ T6230] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 183.085429][ T6230] ? clear_bhb_loop+0x60/0xb0
[ 183.085453][ T6230] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 183.085471][ T6230] RIP: 0033:0x7f8831790eea
[ 183.085489][ T6230] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 183.085510][ T6230] RSP: 002b:00007f8832621e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 183.085532][ T6230] RAX: ffffffffffffffda RBX: 00007f8832621ef0 RCX: 00007f8831790eea
[ 183.085545][ T6230] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f8832621eb0
[ 183.085558][ T6230] RBP: 00002000000124c0 R08: 00007f8832621ef0 R09: 0000000000000000
[ 183.085570][ T6230] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 183.085581][ T6230] R13: 00007f8832621eb0 R14: 0000000000012588 R15: 0000200000000000
[ 183.085615][ T6230]
[ 183.085642][ T6230] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 183.419729][ T6230] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 183.920318][ T6240] loop1: detected capacity change from 0 to 32768
[ 183.954147][ T6240] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 183.978684][ T6240] CPU: 0 UID: 0 PID: 6240 Comm: syz.1.44 Not tainted syzkaller #0 PREEMPT(full)
[ 183.978710][ T6240] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 183.978721][ T6240] Call Trace:
[ 183.978729][ T6240]
[ 183.978738][ T6240] dump_stack_lvl+0x189/0x250
[ 183.978770][ T6240] ? __pfx_dump_stack_lvl+0x10/0x10
[ 183.978794][ T6240] ? __pfx__printk+0x10/0x10
[ 183.978836][ T6240] ? kernfs_path_from_node+0x250/0x290
[ 183.978856][ T6240] ? kernfs_path_from_node+0x2f/0x290
[ 183.978880][ T6240] sysfs_create_dir_ns+0x259/0x280
[ 183.978904][ T6240] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 183.978926][ T6240] ? do_raw_spin_unlock+0x122/0x240
[ 183.978958][ T6240] kobject_add_internal+0x6ab/0xcc0
[ 183.978990][ T6240] kobject_init_and_add+0x125/0x190
[ 183.979018][ T6240] ? __pfx_kobject_init_and_add+0x10/0x10
[ 183.979040][ T6240] ? __raw_spin_lock_init+0x45/0x100
[ 183.979067][ T6240] ? __init_swait_queue_head+0xa9/0x150
[ 183.979098][ T6240] gfs2_sys_fs_add+0x234/0x450
[ 183.979126][ T6240] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 183.979159][ T6240] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 183.979201][ T6240] gfs2_fill_super+0x1388/0x21b0
[ 183.979238][ T6240] ? __pfx_gfs2_fill_super+0x10/0x10
[ 183.979261][ T6240] ? sb_set_blocksize+0x155/0x240
[ 183.979281][ T6240] ? setup_bdev_super+0x4c1/0x5b0
[ 183.979303][ T6240] get_tree_bdev_flags+0x40e/0x4d0
[ 183.979322][ T6240] ? __pfx_gfs2_fill_super+0x10/0x10
[ 183.979340][ T6240] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 183.979357][ T6240] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 183.979395][ T6240] gfs2_get_tree+0x51/0x1e0
[ 183.979417][ T6240] vfs_get_tree+0x92/0x2a0
[ 183.979438][ T6240] do_new_mount+0x302/0xa10
[ 183.979458][ T6240] ? apparmor_capable+0x137/0x1a0
[ 183.979488][ T6240] ? __pfx_do_new_mount+0x10/0x10
[ 183.979510][ T6240] ? ns_capable+0x8a/0xf0
[ 183.979534][ T6240] ? kmem_cache_free+0x197/0x620
[ 183.979566][ T6240] __se_sys_mount+0x313/0x410
[ 183.979616][ T6240] ? __pfx___se_sys_mount+0x10/0x10
[ 183.979644][ T6240] ? do_syscall_64+0xbe/0xf80
[ 183.979660][ T6240] ? __x64_sys_mount+0x20/0xc0
[ 183.979684][ T6240] do_syscall_64+0xfa/0xf80
[ 183.979702][ T6240] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 183.979721][ T6240] ? clear_bhb_loop+0x60/0xb0
[ 183.979745][ T6240] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 183.979764][ T6240] RIP: 0033:0x7f3224590eea
[ 183.979782][ T6240] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 183.979798][ T6240] RSP: 002b:00007f32254dde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 183.979828][ T6240] RAX: ffffffffffffffda RBX: 00007f32254ddef0 RCX: 00007f3224590eea
[ 183.979842][ T6240] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f32254ddeb0
[ 183.979855][ T6240] RBP: 00002000000124c0 R08: 00007f32254ddef0 R09: 0000000000000000
[ 183.979867][ T6240] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 183.979879][ T6240] R13: 00007f32254ddeb0 R14: 0000000000012588 R15: 0000200000000000
[ 183.979913][ T6240]
[ 183.981013][ T6240] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 184.316197][ T6240] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 184.838046][ T6247] loop4: detected capacity change from 0 to 32768
[ 184.881639][ T6247] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 184.893948][ T6247] CPU: 0 UID: 0 PID: 6247 Comm: syz.4.45 Not tainted syzkaller #0 PREEMPT(full)
[ 184.893977][ T6247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 184.893988][ T6247] Call Trace:
[ 184.893997][ T6247]
[ 184.894005][ T6247] dump_stack_lvl+0x189/0x250
[ 184.894038][ T6247] ? __pfx_dump_stack_lvl+0x10/0x10
[ 184.894062][ T6247] ? __pfx__printk+0x10/0x10
[ 184.894095][ T6247] ? kernfs_path_from_node+0x250/0x290
[ 184.894116][ T6247] ? kernfs_path_from_node+0x2f/0x290
[ 184.894141][ T6247] sysfs_create_dir_ns+0x259/0x280
[ 184.894165][ T6247] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 184.894188][ T6247] ? do_raw_spin_unlock+0x122/0x240
[ 184.894220][ T6247] kobject_add_internal+0x6ab/0xcc0
[ 184.894251][ T6247] kobject_init_and_add+0x125/0x190
[ 184.894280][ T6247] ? __pfx_kobject_init_and_add+0x10/0x10
[ 184.894303][ T6247] ? __raw_spin_lock_init+0x45/0x100
[ 184.894332][ T6247] ? __init_swait_queue_head+0xa9/0x150
[ 184.894362][ T6247] gfs2_sys_fs_add+0x234/0x450
[ 184.894390][ T6247] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 184.894425][ T6247] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 184.894468][ T6247] gfs2_fill_super+0x1388/0x21b0
[ 184.894506][ T6247] ? __pfx_gfs2_fill_super+0x10/0x10
[ 184.894530][ T6247] ? sb_set_blocksize+0x155/0x240
[ 184.894553][ T6247] ? setup_bdev_super+0x4c1/0x5b0
[ 184.894576][ T6247] get_tree_bdev_flags+0x40e/0x4d0
[ 184.894597][ T6247] ? __pfx_gfs2_fill_super+0x10/0x10
[ 184.894616][ T6247] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 184.894634][ T6247] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 184.894674][ T6247] gfs2_get_tree+0x51/0x1e0
[ 184.894697][ T6247] vfs_get_tree+0x92/0x2a0
[ 184.894720][ T6247] do_new_mount+0x302/0xa10
[ 184.894741][ T6247] ? apparmor_capable+0x137/0x1a0
[ 184.894773][ T6247] ? __pfx_do_new_mount+0x10/0x10
[ 184.894796][ T6247] ? ns_capable+0x8a/0xf0
[ 184.894830][ T6247] ? kmem_cache_free+0x197/0x620
[ 184.894862][ T6247] __se_sys_mount+0x313/0x410
[ 184.894894][ T6247] ? __pfx___se_sys_mount+0x10/0x10
[ 184.894922][ T6247] ? do_syscall_64+0xbe/0xf80
[ 184.894939][ T6247] ? __x64_sys_mount+0x20/0xc0
[ 184.894965][ T6247] do_syscall_64+0xfa/0xf80
[ 184.894984][ T6247] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 184.895002][ T6247] ? clear_bhb_loop+0x60/0xb0
[ 184.895026][ T6247] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 184.895045][ T6247] RIP: 0033:0x7f32fc990eea
[ 184.895062][ T6247] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 184.895078][ T6247] RSP: 002b:00007f32fd8dbe68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 184.895099][ T6247] RAX: ffffffffffffffda RBX: 00007f32fd8dbef0 RCX: 00007f32fc990eea
[ 184.895113][ T6247] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f32fd8dbeb0
[ 184.895126][ T6247] RBP: 00002000000124c0 R08: 00007f32fd8dbef0 R09: 0000000000000000
[ 184.895139][ T6247] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 184.895151][ T6247] R13: 00007f32fd8dbeb0 R14: 0000000000012588 R15: 0000200000000000
[ 184.895185][ T6247]
[ 184.895213][ T6247] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 184.926218][ T6253] loop2: detected capacity change from 0 to 32768
[ 184.964498][ T6249] loop0: detected capacity change from 0 to 32768
[ 184.986122][ T6247] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 185.272684][ T6249] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 185.316063][ T6249] CPU: 1 UID: 0 PID: 6249 Comm: syz.0.46 Not tainted syzkaller #0 PREEMPT(full)
[ 185.316092][ T6249] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 185.316103][ T6249] Call Trace:
[ 185.316111][ T6249]
[ 185.316120][ T6249] dump_stack_lvl+0x189/0x250
[ 185.316152][ T6249] ? __pfx_dump_stack_lvl+0x10/0x10
[ 185.316175][ T6249] ? __pfx__printk+0x10/0x10
[ 185.316209][ T6249] ? kernfs_path_from_node+0x250/0x290
[ 185.316229][ T6249] ? kernfs_path_from_node+0x2f/0x290
[ 185.316253][ T6249] sysfs_create_dir_ns+0x259/0x280
[ 185.316277][ T6249] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 185.316301][ T6249] ? do_raw_spin_unlock+0x122/0x240
[ 185.316334][ T6249] kobject_add_internal+0x6ab/0xcc0
[ 185.316366][ T6249] kobject_init_and_add+0x125/0x190
[ 185.316393][ T6249] ? __pfx_kobject_init_and_add+0x10/0x10
[ 185.316416][ T6249] ? __raw_spin_lock_init+0x45/0x100
[ 185.316445][ T6249] ? __init_swait_queue_head+0xa9/0x150
[ 185.316474][ T6249] gfs2_sys_fs_add+0x234/0x450
[ 185.316512][ T6249] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 185.316546][ T6249] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 185.316589][ T6249] gfs2_fill_super+0x1388/0x21b0
[ 185.316625][ T6249] ? __pfx_gfs2_fill_super+0x10/0x10
[ 185.316649][ T6249] ? sb_set_blocksize+0x155/0x240
[ 185.316673][ T6249] ? setup_bdev_super+0x4c1/0x5b0
[ 185.316697][ T6249] get_tree_bdev_flags+0x40e/0x4d0
[ 185.316716][ T6249] ? __pfx_gfs2_fill_super+0x10/0x10
[ 185.316735][ T6249] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 185.316751][ T6249] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 185.316791][ T6249] gfs2_get_tree+0x51/0x1e0
[ 185.316814][ T6249] vfs_get_tree+0x92/0x2a0
[ 185.316838][ T6249] do_new_mount+0x302/0xa10
[ 185.316859][ T6249] ? apparmor_capable+0x137/0x1a0
[ 185.316890][ T6249] ? __pfx_do_new_mount+0x10/0x10
[ 185.316914][ T6249] ? ns_capable+0x8a/0xf0
[ 185.316938][ T6249] ? kmem_cache_free+0x197/0x620
[ 185.316969][ T6249] __se_sys_mount+0x313/0x410
[ 185.317001][ T6249] ? __pfx___se_sys_mount+0x10/0x10
[ 185.317029][ T6249] ? do_syscall_64+0xbe/0xf80
[ 185.317047][ T6249] ? __x64_sys_mount+0x20/0xc0
[ 185.317073][ T6249] do_syscall_64+0xfa/0xf80
[ 185.317092][ T6249] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 185.317111][ T6249] ? clear_bhb_loop+0x60/0xb0
[ 185.317134][ T6249] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 185.317152][ T6249] RIP: 0033:0x7f3feff90eea
[ 185.317169][ T6249] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 185.317186][ T6249] RSP: 002b:00007f3ff0d78e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 185.317209][ T6249] RAX: ffffffffffffffda RBX: 00007f3ff0d78ef0 RCX: 00007f3feff90eea
[ 185.317223][ T6249] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f3ff0d78eb0
[ 185.317236][ T6249] RBP: 00002000000124c0 R08: 00007f3ff0d78ef0 R09: 0000000000000000
[ 185.317249][ T6249] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 185.317261][ T6249] R13: 00007f3ff0d78eb0 R14: 0000000000012588 R15: 0000200000000000
[ 185.317295][ T6249]
[ 185.317324][ T6249] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 185.521739][ T6253] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 185.531965][ T6249] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 185.673541][ T6253] CPU: 1 UID: 0 PID: 6253 Comm: syz.2.47 Not tainted syzkaller #0 PREEMPT(full)
[ 185.673570][ T6253] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 185.673582][ T6253] Call Trace:
[ 185.673590][ T6253]
[ 185.673599][ T6253] dump_stack_lvl+0x189/0x250
[ 185.673629][ T6253] ? __pfx_dump_stack_lvl+0x10/0x10
[ 185.673650][ T6253] ? __pfx__printk+0x10/0x10
[ 185.673685][ T6253] ? kernfs_path_from_node+0x250/0x290
[ 185.673705][ T6253] ? kernfs_path_from_node+0x2f/0x290
[ 185.673728][ T6253] sysfs_create_dir_ns+0x259/0x280
[ 185.673751][ T6253] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 185.673774][ T6253] ? do_raw_spin_unlock+0x122/0x240
[ 185.673804][ T6253] kobject_add_internal+0x6ab/0xcc0
[ 185.673832][ T6253] kobject_init_and_add+0x125/0x190
[ 185.673860][ T6253] ? __pfx_kobject_init_and_add+0x10/0x10
[ 185.673881][ T6253] ? __raw_spin_lock_init+0x45/0x100
[ 185.673905][ T6253] ? __init_swait_queue_head+0xa9/0x150
[ 185.673934][ T6253] gfs2_sys_fs_add+0x234/0x450
[ 185.673961][ T6253] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 185.673995][ T6253] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 185.674038][ T6253] gfs2_fill_super+0x1388/0x21b0
[ 185.674071][ T6253] ? __pfx_gfs2_fill_super+0x10/0x10
[ 185.674095][ T6253] ? sb_set_blocksize+0x155/0x240
[ 185.674117][ T6253] ? setup_bdev_super+0x4c1/0x5b0
[ 185.674140][ T6253] get_tree_bdev_flags+0x40e/0x4d0
[ 185.674159][ T6253] ? __pfx_gfs2_fill_super+0x10/0x10
[ 185.674176][ T6253] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 185.674193][ T6253] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 185.674232][ T6253] gfs2_get_tree+0x51/0x1e0
[ 185.674255][ T6253] vfs_get_tree+0x92/0x2a0
[ 185.674277][ T6253] do_new_mount+0x302/0xa10
[ 185.674298][ T6253] ? apparmor_capable+0x137/0x1a0
[ 185.674328][ T6253] ? __pfx_do_new_mount+0x10/0x10
[ 185.674351][ T6253] ? ns_capable+0x8a/0xf0
[ 185.674375][ T6253] ? kmem_cache_free+0x197/0x620
[ 185.674407][ T6253] __se_sys_mount+0x313/0x410
[ 185.674439][ T6253] ? __pfx___se_sys_mount+0x10/0x10
[ 185.674467][ T6253] ? do_syscall_64+0xbe/0xf80
[ 185.674483][ T6253] ? __x64_sys_mount+0x20/0xc0
[ 185.674519][ T6253] do_syscall_64+0xfa/0xf80
[ 185.674539][ T6253] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 185.674557][ T6253] ? clear_bhb_loop+0x60/0xb0
[ 185.674581][ T6253] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 185.674599][ T6253] RIP: 0033:0x7f8831790eea
[ 185.674618][ T6253] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 185.674634][ T6253] RSP: 002b:00007f8832621e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 185.674656][ T6253] RAX: ffffffffffffffda RBX: 00007f8832621ef0 RCX: 00007f8831790eea
[ 185.674669][ T6253] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f8832621eb0
[ 185.674681][ T6253] RBP: 00002000000124c0 R08: 00007f8832621ef0 R09: 0000000000000000
[ 185.674694][ T6253] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 185.674706][ T6253] R13: 00007f8832621eb0 R14: 0000000000012588 R15: 0000200000000000
[ 185.674736][ T6253]
[ 185.674762][ T6253] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 186.017665][ T6253] gfs2: fsid=syz:syz: error -17 adding sysfs files
2025/12/07 14:52:05 executed programs: 42
[ 186.354049][ T6257] loop1: detected capacity change from 0 to 32768
[ 186.418704][ T6257] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 186.445733][ T6257] CPU: 1 UID: 0 PID: 6257 Comm: syz.1.48 Not tainted syzkaller #0 PREEMPT(full)
[ 186.445762][ T6257] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 186.445774][ T6257] Call Trace:
[ 186.445783][ T6257]
[ 186.445791][ T6257] dump_stack_lvl+0x189/0x250
[ 186.445824][ T6257] ? __pfx_dump_stack_lvl+0x10/0x10
[ 186.445846][ T6257] ? __pfx__printk+0x10/0x10
[ 186.445881][ T6257] ? kernfs_path_from_node+0x250/0x290
[ 186.445901][ T6257] ? kernfs_path_from_node+0x2f/0x290
[ 186.445925][ T6257] sysfs_create_dir_ns+0x259/0x280
[ 186.445950][ T6257] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 186.445977][ T6257] ? do_raw_spin_unlock+0x122/0x240
[ 186.446008][ T6257] kobject_add_internal+0x6ab/0xcc0
[ 186.446038][ T6257] kobject_init_and_add+0x125/0x190
[ 186.446064][ T6257] ? __pfx_kobject_init_and_add+0x10/0x10
[ 186.446086][ T6257] ? __raw_spin_lock_init+0x45/0x100
[ 186.446114][ T6257] ? __init_swait_queue_head+0xa9/0x150
[ 186.446142][ T6257] gfs2_sys_fs_add+0x234/0x450
[ 186.446168][ T6257] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 186.446199][ T6257] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 186.446240][ T6257] gfs2_fill_super+0x1388/0x21b0
[ 186.446276][ T6257] ? __pfx_gfs2_fill_super+0x10/0x10
[ 186.446301][ T6257] ? sb_set_blocksize+0x155/0x240
[ 186.446324][ T6257] ? setup_bdev_super+0x4c1/0x5b0
[ 186.446349][ T6257] get_tree_bdev_flags+0x40e/0x4d0
[ 186.446369][ T6257] ? __pfx_gfs2_fill_super+0x10/0x10
[ 186.446387][ T6257] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 186.446404][ T6257] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 186.446444][ T6257] gfs2_get_tree+0x51/0x1e0
[ 186.446466][ T6257] vfs_get_tree+0x92/0x2a0
[ 186.446489][ T6257] do_new_mount+0x302/0xa10
[ 186.446511][ T6257] ? apparmor_capable+0x137/0x1a0
[ 186.446541][ T6257] ? __pfx_do_new_mount+0x10/0x10
[ 186.446565][ T6257] ? ns_capable+0x8a/0xf0
[ 186.446597][ T6257] ? kmem_cache_free+0x197/0x620
[ 186.446630][ T6257] __se_sys_mount+0x313/0x410
[ 186.446662][ T6257] ? __pfx___se_sys_mount+0x10/0x10
[ 186.446690][ T6257] ? do_syscall_64+0xbe/0xf80
[ 186.446707][ T6257] ? __x64_sys_mount+0x20/0xc0
[ 186.446733][ T6257] do_syscall_64+0xfa/0xf80
[ 186.446752][ T6257] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 186.446771][ T6257] ? clear_bhb_loop+0x60/0xb0
[ 186.446794][ T6257] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 186.446812][ T6257] RIP: 0033:0x7f3224590eea
[ 186.446829][ T6257] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 186.446844][ T6257] RSP: 002b:00007f32254dde68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 186.446865][ T6257] RAX: ffffffffffffffda RBX: 00007f32254ddef0 RCX: 00007f3224590eea
[ 186.446879][ T6257] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f32254ddeb0
[ 186.446892][ T6257] RBP: 00002000000124c0 R08: 00007f32254ddef0 R09: 0000000000000000
[ 186.446905][ T6257] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 186.446917][ T6257] R13: 00007f32254ddeb0 R14: 0000000000012588 R15: 0000200000000000
[ 186.446951][ T6257]
[ 186.868204][ T6257] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 186.896137][ T6257] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 187.143259][ T6269] loop0: detected capacity change from 0 to 32768
[ 187.214658][ T186] gfs2: fsid=syz:syz.0: file system withdrawn
[ 187.273158][ T6269] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 187.284928][ T6269] CPU: 1 UID: 0 PID: 6269 Comm: syz.0.50 Not tainted syzkaller #0 PREEMPT(full)
[ 187.284957][ T6269] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 187.284968][ T6269] Call Trace:
[ 187.284977][ T6269]
[ 187.284985][ T6269] dump_stack_lvl+0x189/0x250
[ 187.285017][ T6269] ? __pfx_dump_stack_lvl+0x10/0x10
[ 187.285040][ T6269] ? __pfx__printk+0x10/0x10
[ 187.285071][ T6269] ? kernfs_path_from_node+0x250/0x290
[ 187.285091][ T6269] ? kernfs_path_from_node+0x2f/0x290
[ 187.285127][ T6269] sysfs_create_dir_ns+0x259/0x280
[ 187.285150][ T6269] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 187.285170][ T6269] ? do_raw_spin_unlock+0x122/0x240
[ 187.285200][ T6269] kobject_add_internal+0x6ab/0xcc0
[ 187.285230][ T6269] kobject_init_and_add+0x125/0x190
[ 187.285257][ T6269] ? __pfx_kobject_init_and_add+0x10/0x10
[ 187.285280][ T6269] ? __raw_spin_lock_init+0x45/0x100
[ 187.285309][ T6269] ? __init_swait_queue_head+0xa9/0x150
[ 187.285339][ T6269] gfs2_sys_fs_add+0x234/0x450
[ 187.285389][ T6269] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 187.285423][ T6269] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 187.285467][ T6269] gfs2_fill_super+0x1388/0x21b0
[ 187.285504][ T6269] ? __pfx_gfs2_fill_super+0x10/0x10
[ 187.285530][ T6269] ? sb_set_blocksize+0x155/0x240
[ 187.285553][ T6269] ? setup_bdev_super+0x4c1/0x5b0
[ 187.285586][ T6269] get_tree_bdev_flags+0x40e/0x4d0
[ 187.285606][ T6269] ? __pfx_gfs2_fill_super+0x10/0x10
[ 187.285626][ T6269] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 187.285643][ T6269] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 187.285683][ T6269] gfs2_get_tree+0x51/0x1e0
[ 187.285706][ T6269] vfs_get_tree+0x92/0x2a0
[ 187.285729][ T6269] do_new_mount+0x302/0xa10
[ 187.285750][ T6269] ? apparmor_capable+0x137/0x1a0
[ 187.285782][ T6269] ? __pfx_do_new_mount+0x10/0x10
[ 187.285804][ T6269] ? ns_capable+0x8a/0xf0
[ 187.285827][ T6269] ? kmem_cache_free+0x197/0x620
[ 187.285859][ T6269] __se_sys_mount+0x313/0x410
[ 187.285891][ T6269] ? __pfx___se_sys_mount+0x10/0x10
[ 187.285919][ T6269] ? do_syscall_64+0xbe/0xf80
[ 187.285936][ T6269] ? __x64_sys_mount+0x20/0xc0
[ 187.285963][ T6269] do_syscall_64+0xfa/0xf80
[ 187.285987][ T6269] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 187.286006][ T6269] ? clear_bhb_loop+0x60/0xb0
[ 187.286028][ T6269] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 187.286046][ T6269] RIP: 0033:0x7f3feff90eea
[ 187.286064][ T6269] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 187.286080][ T6269] RSP: 002b:00007f3ff0d78e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 187.286102][ T6269] RAX: ffffffffffffffda RBX: 00007f3ff0d78ef0 RCX: 00007f3feff90eea
[ 187.286116][ T6269] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f3ff0d78eb0
[ 187.286129][ T6269] RBP: 00002000000124c0 R08: 00007f3ff0d78ef0 R09: 0000000000000000
[ 187.286142][ T6269] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 187.286154][ T6269] R13: 00007f3ff0d78eb0 R14: 0000000000012588 R15: 0000200000000000
[ 187.286186][ T6269]
[ 187.686141][ T6269] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 187.763012][ T6269] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 188.175235][ T6267] loop4: detected capacity change from 0 to 32768
[ 188.288312][ T6267] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 188.316136][ T6267] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 188.377534][ T6267] gfs2: fsid=syz:syz.0: journal 0 mapped with 9 extents in 0ms
[ 188.432669][ T6052] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 188.440311][ T6052] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 188.573035][ T6052] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 132ms
[ 188.616531][ T6052] gfs2: fsid=syz:syz.0: jid=0: Done
[ 188.624219][ T6267] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 188.720932][ T6271] loop2: detected capacity change from 0 to 32768
[ 188.801783][ T6271] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 188.830208][ T6271] CPU: 0 UID: 0 PID: 6271 Comm: syz.2.51 Not tainted syzkaller #0 PREEMPT(full)
[ 188.830239][ T6271] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 188.830251][ T6271] Call Trace:
[ 188.830259][ T6271]
[ 188.830268][ T6271] dump_stack_lvl+0x189/0x250
[ 188.830301][ T6271] ? __pfx_dump_stack_lvl+0x10/0x10
[ 188.830324][ T6271] ? __pfx__printk+0x10/0x10
[ 188.830360][ T6271] ? kernfs_path_from_node+0x250/0x290
[ 188.830380][ T6271] ? kernfs_path_from_node+0x2f/0x290
[ 188.830406][ T6271] sysfs_create_dir_ns+0x259/0x280
[ 188.830430][ T6271] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 188.830453][ T6271] ? do_raw_spin_unlock+0x122/0x240
[ 188.830487][ T6271] kobject_add_internal+0x6ab/0xcc0
[ 188.830521][ T6271] kobject_init_and_add+0x125/0x190
[ 188.830549][ T6271] ? __pfx_kobject_init_and_add+0x10/0x10
[ 188.830573][ T6271] ? __raw_spin_lock_init+0x45/0x100
[ 188.830601][ T6271] ? __init_swait_queue_head+0xa9/0x150
[ 188.830631][ T6271] gfs2_sys_fs_add+0x234/0x450
[ 188.830659][ T6271] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 188.830694][ T6271] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 188.830738][ T6271] gfs2_fill_super+0x1388/0x21b0
[ 188.830777][ T6271] ? __pfx_gfs2_fill_super+0x10/0x10
[ 188.830802][ T6271] ? sb_set_blocksize+0x155/0x240
[ 188.830827][ T6271] ? setup_bdev_super+0x4c1/0x5b0
[ 188.830860][ T6271] get_tree_bdev_flags+0x40e/0x4d0
[ 188.830881][ T6271] ? __pfx_gfs2_fill_super+0x10/0x10
[ 188.830900][ T6271] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 188.830917][ T6271] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 188.830957][ T6271] gfs2_get_tree+0x51/0x1e0
[ 188.830979][ T6271] vfs_get_tree+0x92/0x2a0
[ 188.831002][ T6271] do_new_mount+0x302/0xa10
[ 188.831024][ T6271] ? apparmor_capable+0x137/0x1a0
[ 188.831055][ T6271] ? __pfx_do_new_mount+0x10/0x10
[ 188.831078][ T6271] ? ns_capable+0x8a/0xf0
[ 188.831109][ T6271] ? kmem_cache_free+0x197/0x620
[ 188.831151][ T6271] __se_sys_mount+0x313/0x410
[ 188.831183][ T6271] ? __pfx___se_sys_mount+0x10/0x10
[ 188.831212][ T6271] ? do_syscall_64+0xbe/0xf80
[ 188.831229][ T6271] ? __x64_sys_mount+0x20/0xc0
[ 188.831255][ T6271] do_syscall_64+0xfa/0xf80
[ 188.831284][ T6271] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 188.831303][ T6271] ? clear_bhb_loop+0x60/0xb0
[ 188.831327][ T6271] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 188.831346][ T6271] RIP: 0033:0x7f8831790eea
[ 188.831364][ T6271] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 188.831381][ T6271] RSP: 002b:00007f8832621e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 188.831404][ T6271] RAX: ffffffffffffffda RBX: 00007f8832621ef0 RCX: 00007f8831790eea
[ 188.831425][ T6271] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f8832621eb0
[ 188.831438][ T6271] RBP: 00002000000124c0 R08: 00007f8832621ef0 R09: 0000000000000000
[ 188.831451][ T6271] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 188.831463][ T6271] R13: 00007f8832621eb0 R14: 0000000000012588 R15: 0000200000000000
[ 188.831504][ T6271]
[ 188.831661][ T6271] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 188.968354][ T6267] gfs2: fsid=syz:syz.0: found 1 quota changes
[ 189.044250][ T6271] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 189.254067][ T5974] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error - inode = 11 2339, function = gfs2_dinode_in, file = fs/gfs2/glops.c, line = 398
[ 189.366086][ T5974] gfs2: fsid=syz:syz.0: G: s:EX n:2/923 f:aqonN t:EX d:EX/0 a:0 v:0 r:2 m:20 p:1
[ 189.367048][ T6281] loop3: detected capacity change from 0 to 32768
[ 189.416071][ T5974] gfs2: fsid=syz:syz.0: H: s:EX f:H e:0 p:5974 [syz-executor] gfs2_quota_sync+0x359/0x460
[ 189.450473][ T5974] gfs2: fsid=syz:syz.0: I: n:11/2339 t:0 f:0x00 d:0x00000000 s:0 p:0
[ 189.486453][ T6281] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 189.493904][ T6281] CPU: 1 UID: 0 PID: 6281 Comm: syz.3.43 Not tainted syzkaller #0 PREEMPT(full)
[ 189.493938][ T6281] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 189.493950][ T6281] Call Trace:
[ 189.493959][ T6281]
[ 189.493967][ T6281] dump_stack_lvl+0x189/0x250
[ 189.494002][ T6281] ? __pfx_dump_stack_lvl+0x10/0x10
[ 189.494025][ T6281] ? __pfx__printk+0x10/0x10
[ 189.494059][ T6281] ? kernfs_path_from_node+0x250/0x290
[ 189.494080][ T6281] ? kernfs_path_from_node+0x2f/0x290
[ 189.494105][ T6281] sysfs_create_dir_ns+0x259/0x280
[ 189.494130][ T6281] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 189.494153][ T6281] ? do_raw_spin_unlock+0x122/0x240
[ 189.494185][ T6281] kobject_add_internal+0x6ab/0xcc0
[ 189.494217][ T6281] kobject_init_and_add+0x125/0x190
[ 189.494246][ T6281] ? __pfx_kobject_init_and_add+0x10/0x10
[ 189.494269][ T6281] ? __raw_spin_lock_init+0x45/0x100
[ 189.494297][ T6281] ? __init_swait_queue_head+0xa9/0x150
[ 189.494328][ T6281] gfs2_sys_fs_add+0x234/0x450
[ 189.494355][ T6281] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 189.494391][ T6281] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 189.494432][ T6281] gfs2_fill_super+0x1388/0x21b0
[ 189.494471][ T6281] ? __pfx_gfs2_fill_super+0x10/0x10
[ 189.494495][ T6281] ? sb_set_blocksize+0x155/0x240
[ 189.494518][ T6281] ? setup_bdev_super+0x4c1/0x5b0
[ 189.494543][ T6281] get_tree_bdev_flags+0x40e/0x4d0
[ 189.494563][ T6281] ? __pfx_gfs2_fill_super+0x10/0x10
[ 189.494583][ T6281] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 189.494600][ T6281] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 189.494640][ T6281] gfs2_get_tree+0x51/0x1e0
[ 189.494663][ T6281] vfs_get_tree+0x92/0x2a0
[ 189.494686][ T6281] do_new_mount+0x302/0xa10
[ 189.494708][ T6281] ? apparmor_capable+0x137/0x1a0
[ 189.494739][ T6281] ? __pfx_do_new_mount+0x10/0x10
[ 189.494762][ T6281] ? ns_capable+0x8a/0xf0
[ 189.494787][ T6281] ? kmem_cache_free+0x197/0x620
[ 189.494820][ T6281] __se_sys_mount+0x313/0x410
[ 189.494851][ T6281] ? __pfx___se_sys_mount+0x10/0x10
[ 189.494889][ T6281] ? do_syscall_64+0xbe/0xf80
[ 189.494906][ T6281] ? __x64_sys_mount+0x20/0xc0
[ 189.494933][ T6281] do_syscall_64+0xfa/0xf80
[ 189.494952][ T6281] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 189.494971][ T6281] ? clear_bhb_loop+0x60/0xb0
[ 189.494996][ T6281] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 189.495015][ T6281] RIP: 0033:0x7f92ae190eea
[ 189.495032][ T6281] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
[ 189.495050][ T6281] RSP: 002b:00007f92af00ee68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 189.495071][ T6281] RAX: ffffffffffffffda RBX: 00007f92af00eef0 RCX: 00007f92ae190eea
[ 189.495085][ T6281] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f92af00eeb0
[ 189.495098][ T6281] RBP: 00002000000124c0 R08: 00007f92af00eef0 R09: 0000000000000000
[ 189.495112][ T6281] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 189.495124][ T6281] R13: 00007f92af00eeb0 R14: 0000000000012588 R15: 0000200000000000
[ 189.495159][ T6281]
[ 189.495188][ T6281] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 189.639693][ T5974] CPU: 0 UID: 0 PID: 5974 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 189.639722][ T5974] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 189.639733][ T5974] Call Trace:
[ 189.639742][ T5974]
[ 189.639750][ T5974] dump_stack_lvl+0x189/0x250
[ 189.639780][ T5974] ? __pfx_dump_stack_lvl+0x10/0x10
[ 189.639802][ T5974] ? queue_delayed_work_on+0x11a/0x280
[ 189.639823][ T5974] ? lockdep_hardirqs_on+0x98/0x140
[ 189.639840][ T5974] ? preempt_schedule+0xae/0xc0
[ 189.639879][ T5974] gfs2_withdraw+0xc3/0x1b0
[ 189.639899][ T5974] inode_go_instantiate+0xaa8/0x1210
[ 189.639935][ T5974] ? __pfx_inode_go_instantiate+0x10/0x10
[ 189.639964][ T5974] ? gfs2_glock_nq+0xedd/0x15f0
[ 189.639988][ T5974] gfs2_instantiate+0x168/0x220
[ 189.640008][ T5974] gfs2_glock_wait+0x1d4/0x2a0
[ 189.640030][ T5974] do_sync+0x46f/0xc60
[ 189.640050][ T5974] ? _raw_spin_unlock+0x28/0x50
[ 189.640071][ T5974] ? gfs2_quota_sync+0x359/0x460
[ 189.640103][ T5974] ? __pfx_do_sync+0x10/0x10
[ 189.640133][ T5974] ? gfs2_quota_sync+0x359/0x460
[ 189.640159][ T5974] ? do_raw_spin_unlock+0x122/0x240
[ 189.640187][ T5974] gfs2_quota_sync+0x359/0x460
[ 189.640221][ T5974] gfs2_sync_fs+0x4c/0xb0
[ 189.640242][ T5974] sync_filesystem+0xee/0x230
[ 189.640269][ T5974] generic_shutdown_super+0x6f/0x2c0
[ 189.640298][ T5974] kill_block_super+0x44/0x90
[ 189.640317][ T5974] deactivate_locked_super+0xbc/0x130
[ 189.640343][ T5974] cleanup_mnt+0x425/0x4c0
[ 189.640368][ T5974] ? lockdep_hardirqs_on+0x98/0x140
[ 189.640388][ T5974] task_work_run+0x1d4/0x260
[ 189.640415][ T5974] ? __pfx_task_work_run+0x10/0x10
[ 189.640443][ T5974] ? exit_to_user_mode_loop+0x55/0x4f0
[ 189.640466][ T5974] exit_to_user_mode_loop+0xff/0x4f0
[ 189.640483][ T5974] ? rcu_is_watching+0x15/0xb0
[ 189.640508][ T5974] do_syscall_64+0x2e3/0xf80
[ 189.640526][ T5974] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 189.640542][ T5974] ? clear_bhb_loop+0x60/0xb0
[ 189.640563][ T5974] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 189.640580][ T5974] RIP: 0033:0x7f32fc990a77
[ 189.640596][ T5974] Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
[ 189.640610][ T5974] RSP: 002b:00007ffc977fb9d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 189.640630][ T5974] RAX: 0000000000000000 RBX: 00007f32fca13d7d RCX: 00007f32fc990a77
[ 189.640641][ T5974] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc977fba90
[ 189.640652][ T5974] RBP: 00007ffc977fba90 R08: 0000000000000000 R09: 0000000000000000
[ 189.640662][ T5974] R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc977fcb20
[ 189.640673][ T5974] R13: 00007f32fca13d7d R14: 000000000002d74a R15: 00007ffc977fcb60
[ 189.640705][ T5974]
[ 189.640711][ T5974] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 189.751885][ T6277] loop1: detected capacity change from 0 to 32768
[ 189.777320][ T5974] ==================================================================
[ 189.807430][ T6283] loop0: detected capacity change from 0 to 32768
[ 189.813389][ T5974] BUG: KASAN: slab-use-after-free in __list_add_valid_or_report+0x6a/0x130
[ 189.813424][ T5974] Read of size 8 at addr ffff888076c62078 by task syz-executor/5974
[ 189.965011][ T6281] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 189.969010][ T5974]
[ 189.969029][ T5974] CPU: 0 UID: 0 PID: 5974 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 189.969051][ T5974] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 189.969063][ T5974] Call Trace:
[ 189.969071][ T5974]
[ 189.969080][ T5974] dump_stack_lvl+0x189/0x250
[ 189.969106][ T5974] ? __virt_addr_valid+0x1c8/0x5c0
[ 189.969131][ T5974] ? rcu_is_watching+0x15/0xb0
[ 189.969150][ T5974] ? __pfx_dump_stack_lvl+0x10/0x10
[ 189.969168][ T5974] ? rcu_is_watching+0x15/0xb0
[ 189.969188][ T5974] ? lock_release+0x4b/0x3b0
[ 189.969204][ T5974] ? _raw_spin_lock_irqsave+0xb3/0xf0
[ 189.969228][ T5974] ? __virt_addr_valid+0x1c8/0x5c0
[ 189.969250][ T5974] ? __virt_addr_valid+0x4a5/0x5c0
[ 189.969273][ T5974] print_report+0xca/0x240
[ 189.969298][ T5974] ? __list_add_valid_or_report+0x6a/0x130
[ 189.969318][ T5974] kasan_report+0x118/0x150
[ 189.969339][ T5974] ? __list_add_valid_or_report+0x6a/0x130
[ 189.969362][ T5974] __list_add_valid_or_report+0x6a/0x130
[ 189.969383][ T5974] list_lru_add+0xf2/0x270
[ 189.969404][ T5974] qd_put+0x114/0x190
[ 189.969426][ T5974] gfs2_quota_sync+0x3c4/0x460
[ 189.969451][ T5974] gfs2_sync_fs+0x4c/0xb0
[ 189.969470][ T5974] sync_filesystem+0xee/0x230
[ 189.969495][ T5974] generic_shutdown_super+0x6f/0x2c0
[ 189.969520][ T5974] kill_block_super+0x44/0x90
[ 189.969537][ T5974] deactivate_locked_super+0xbc/0x130
[ 189.969568][ T5974] cleanup_mnt+0x425/0x4c0
[ 189.969592][ T5974] ? lockdep_hardirqs_on+0x98/0x140
[ 189.969608][ T5974] task_work_run+0x1d4/0x260
[ 189.969633][ T5974] ? __pfx_task_work_run+0x10/0x10
[ 189.969656][ T5974] ? exit_to_user_mode_loop+0x55/0x4f0
[ 189.969675][ T5974] exit_to_user_mode_loop+0xff/0x4f0
[ 189.969691][ T5974] ? rcu_is_watching+0x15/0xb0
[ 189.969713][ T5974] do_syscall_64+0x2e3/0xf80
[ 189.969729][ T5974] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 189.969746][ T5974] ? clear_bhb_loop+0x60/0xb0
[ 189.969764][ T5974] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 189.969781][ T5974] RIP: 0033:0x7f32fc990a77
[ 189.969797][ T5974] Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
[ 189.969812][ T5974] RSP: 002b:00007ffc977fb9d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 189.969832][ T5974] RAX: 0000000000000000 RBX: 00007f32fca13d7d RCX: 00007f32fc990a77
[ 189.969844][ T5974] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc977fba90
[ 189.969855][ T5974] RBP: 00007ffc977fba90 R08: 0000000000000000 R09: 0000000000000000
[ 189.969866][ T5974] R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc977fcb20
[ 189.969878][ T5974] R13: 00007f32fca13d7d R14: 000000000002d74a R15: 00007ffc977fcb60
[ 189.969897][ T5974]
[ 189.969903][ T5974]
[ 190.440258][ T5974] Allocated by task 6166:
[ 190.444764][ T5974] kasan_save_track+0x3e/0x80
[ 190.449462][ T5974] __kasan_slab_alloc+0x6c/0x80
[ 190.454940][ T5974] kmem_cache_alloc_noprof+0x37d/0x710
[ 190.460495][ T5974] qd_alloc+0x50/0x250
[ 190.464828][ T5974] gfs2_quota_init+0x762/0x1200
[ 190.469686][ T5974] gfs2_make_fs_rw+0x143/0x220
[ 190.474446][ T5974] gfs2_fill_super+0x1b6a/0x21b0
[ 190.479467][ T5974] get_tree_bdev_flags+0x40e/0x4d0
[ 190.484623][ T5974] gfs2_get_tree+0x51/0x1e0
[ 190.489141][ T5974] vfs_get_tree+0x92/0x2a0
[ 190.493685][ T5974] do_new_mount+0x302/0xa10
[ 190.498535][ T5974] __se_sys_mount+0x313/0x410
[ 190.503302][ T5974] do_syscall_64+0xfa/0xf80
[ 190.507924][ T5974] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 190.514016][ T5974]
[ 190.516440][ T5974] Freed by task 15:
[ 190.520420][ T5974] kasan_save_track+0x3e/0x80
[ 190.525099][ T5974] kasan_save_free_info+0x46/0x50
[ 190.530389][ T5974] __kasan_slab_free+0x5c/0x80
[ 190.535252][ T5974] kmem_cache_free+0x197/0x620
[ 190.540104][ T5974] gfs2_qd_dealloc+0x70/0xe0
[ 190.544700][ T5974] rcu_core+0xd70/0x1870
[ 190.548970][ T5974] handle_softirqs+0x27d/0x850
[ 190.553835][ T5974] run_ksoftirqd+0x9b/0x100
[ 190.558400][ T5974] smpboot_thread_fn+0x542/0xa60
[ 190.563618][ T5974] kthread+0x711/0x8a0
[ 190.567746][ T5974] ret_from_fork+0x599/0xb30
[ 190.572431][ T5974] ret_from_fork_asm+0x1a/0x30
[ 190.577647][ T5974]
[ 190.579990][ T5974] Last potentially related work creation:
[ 190.586099][ T5974] kasan_save_stack+0x3e/0x60
[ 190.590908][ T5974] kasan_record_aux_stack+0xbd/0xd0
[ 190.596112][ T5974] call_rcu+0x157/0x9c0
[ 190.600270][ T5974] gfs2_quota_sync+0x30c/0x460
[ 190.605211][ T5974] gfs2_make_fs_ro+0x152/0x300
[ 190.609976][ T5974] gfs2_put_super+0x220/0x860
[ 190.614746][ T5974] generic_shutdown_super+0x135/0x2c0
[ 190.620304][ T5974] kill_block_super+0x44/0x90
[ 190.625152][ T5974] deactivate_locked_super+0xbc/0x130
[ 190.630965][ T5974] cleanup_mnt+0x425/0x4c0
[ 190.635653][ T5974] task_work_run+0x1d4/0x260
[ 190.640338][ T5974] exit_to_user_mode_loop+0xff/0x4f0
[ 190.645817][ T5974] do_syscall_64+0x2e3/0xf80
[ 190.650536][ T5974] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 190.656454][ T5974]
[ 190.658779][ T5974] The buggy address belongs to the object at ffff888076c62000
[ 190.658779][ T5974] which belongs to the cache gfs2_quotad of size 272
[ 190.673269][ T5974] The buggy address is located 120 bytes inside of
[ 190.673269][ T5974] freed 272-byte region [ffff888076c62000, ffff888076c62110)
[ 190.687328][ T5974]
[ 190.689754][ T5974] The buggy address belongs to the physical page:
[ 190.696652][ T5974] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888076c62000 pfn:0x76c62
[ 190.707862][ T5974] flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
[ 190.715511][ T5974] page_type: f5(slab)
[ 190.719498][ T5974] raw: 00fff00000000000 ffff88801bfb5b40 dead000000000122 0000000000000000
[ 190.728259][ T5974] raw: ffff888076c62000 00000000800c000b 00000000f5000000 0000000000000000
[ 190.737638][ T5974] page dumped because: kasan: bad access detected
[ 190.744256][ T5974] page_owner tracks the page as allocated
[ 190.750954][ T5974] page last allocated via order 0, migratetype Reclaimable, gfp_mask 0x52c50(GFP_NOFS|__GFP_RECLAIMABLE|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 6166, tgid 6164 (syz.4.27), ts 173406372524, free_ts 30339249086
[ 190.772684][ T5974] post_alloc_hook+0x234/0x290
[ 190.777865][ T5974] get_page_from_freelist+0x2365/0x2440
[ 190.783437][ T5974] __alloc_frozen_pages_noprof+0x181/0x370
[ 190.789265][ T5974] alloc_pages_mpol+0x232/0x4a0
[ 190.794398][ T5974] allocate_slab+0x86/0x3b0
[ 190.798908][ T5974] ___slab_alloc+0xf2b/0x1960
[ 190.803585][ T5974] __slab_alloc+0x65/0x100
[ 190.808005][ T5974] kmem_cache_alloc_noprof+0x40f/0x710
[ 190.813691][ T5974] qd_alloc+0x50/0x250
[ 190.817896][ T5974] gfs2_quota_init+0x762/0x1200
[ 190.823038][ T5974] gfs2_make_fs_rw+0x143/0x220
[ 190.828003][ T5974] gfs2_fill_super+0x1b6a/0x21b0
[ 190.833404][ T5974] get_tree_bdev_flags+0x40e/0x4d0
[ 190.838983][ T5974] gfs2_get_tree+0x51/0x1e0
[ 190.844146][ T5974] vfs_get_tree+0x92/0x2a0
[ 190.848596][ T5974] do_new_mount+0x302/0xa10
[ 190.853765][ T5974] page last free pid 1 tgid 1 stack trace:
[ 190.859839][ T5974] __free_frozen_pages+0xbc8/0xd30
[ 190.865308][ T5974] free_contig_range+0x1bd/0x490
[ 190.870638][ T5974] destroy_args+0x69/0x660
[ 190.875057][ T5974] debug_vm_pgtable+0x38f/0x3a0
[ 190.880375][ T5974] do_one_initcall+0x1fb/0x820
[ 190.885233][ T5974] do_initcall_level+0x104/0x190
[ 190.890552][ T5974] do_initcalls+0x59/0xa0
[ 190.895077][ T5974] kernel_init_freeable+0x334/0x4b0
[ 190.900600][ T5974] kernel_init+0x1d/0x1d0
[ 190.905111][ T5974] ret_from_fork+0x599/0xb30
[ 190.910143][ T5974] ret_from_fork_asm+0x1a/0x30
[ 190.915101][ T5974]
[ 190.917629][ T5974] Memory state around the buggy address:
[ 190.924214][ T5974] ffff888076c61f00: fb fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc
[ 190.932545][ T5974] ffff888076c61f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 190.941488][ T5974] >ffff888076c62000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 190.950179][ T5974] ^
[ 190.958256][ T5974] ffff888076c62080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 190.967149][ T5974] ffff888076c62100: fb fb fc fc fc fc fc fc fc fc fa fb fb fb fb fb
[ 190.976187][ T5974] ==================================================================
[ 190.988874][ T5974] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 190.996824][ T5974] CPU: 0 UID: 0 PID: 5974 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
[ 191.006892][ T5974] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
[ 191.017239][ T5974] Call Trace:
[ 191.021078][ T5974]
[ 191.024314][ T5974] dump_stack_lvl+0x99/0x250
[ 191.029289][ T5974] ? __asan_memcpy+0x40/0x70
[ 191.034082][ T5974] ? __pfx_dump_stack_lvl+0x10/0x10
[ 191.039495][ T5974] ? __pfx__printk+0x10/0x10
[ 191.044224][ T5974] vpanic+0x237/0x6d0
[ 191.048500][ T5974] ? __pfx_vpanic+0x10/0x10
[ 191.053123][ T5974] panic+0xb9/0xc0
[ 191.056890][ T5974] ? __pfx_panic+0x10/0x10
[ 191.061513][ T5974] ? _raw_spin_unlock_irqrestore+0xa8/0x110
[ 191.067803][ T5974] ? _raw_spin_unlock_irqrestore+0xad/0x110
[ 191.074220][ T5974] ? is_module_address+0x17/0xf0
[ 191.080119][ T5974] ? __list_add_valid_or_report+0x6a/0x130
[ 191.086103][ T5974] check_panic_on_warn+0x89/0xb0
[ 191.091312][ T5974] ? __list_add_valid_or_report+0x6a/0x130
[ 191.097216][ T5974] end_report+0x6f/0x140
[ 191.101813][ T5974] kasan_report+0x129/0x150
[ 191.106426][ T5974] ? __list_add_valid_or_report+0x6a/0x130
[ 191.112243][ T5974] __list_add_valid_or_report+0x6a/0x130
[ 191.118143][ T5974] list_lru_add+0xf2/0x270
[ 191.122559][ T5974] qd_put+0x114/0x190
[ 191.126566][ T5974] gfs2_quota_sync+0x3c4/0x460
[ 191.131669][ T5974] gfs2_sync_fs+0x4c/0xb0
[ 191.136317][ T5974] sync_filesystem+0xee/0x230
[ 191.141094][ T5974] generic_shutdown_super+0x6f/0x2c0
[ 191.146647][ T5974] kill_block_super+0x44/0x90
[ 191.151759][ T5974] deactivate_locked_super+0xbc/0x130
[ 191.157235][ T5974] cleanup_mnt+0x425/0x4c0
[ 191.162271][ T5974] ? lockdep_hardirqs_on+0x98/0x140
[ 191.167696][ T5974] task_work_run+0x1d4/0x260
[ 191.172381][ T5974] ? __pfx_task_work_run+0x10/0x10
[ 191.177683][ T5974] ? exit_to_user_mode_loop+0x55/0x4f0
[ 191.183267][ T5974] exit_to_user_mode_loop+0xff/0x4f0
[ 191.188655][ T5974] ? rcu_is_watching+0x15/0xb0
[ 191.193456][ T5974] do_syscall_64+0x2e3/0xf80
[ 191.198395][ T5974] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 191.204547][ T5974] ? clear_bhb_loop+0x60/0xb0
[ 191.209397][ T5974] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 191.215640][ T5974] RIP: 0033:0x7f32fc990a77
[ 191.220240][ T5974] Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
[ 191.240284][ T5974] RSP: 002b:00007ffc977fb9d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 191.249055][ T5974] RAX: 0000000000000000 RBX: 00007f32fca13d7d RCX: 00007f32fc990a77
[ 191.257304][ T5974] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc977fba90
[ 191.265539][ T5974] RBP: 00007ffc977fba90 R08: 0000000000000000 R09: 0000000000000000
[ 191.273958][ T5974] R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc977fcb20
[ 191.282197][ T5974] R13: 00007f32fca13d7d R14: 000000000002d74a R15: 00007ffc977fcb60
[ 191.290362][ T5974]
[ 191.294013][ T5974] Kernel Offset: disabled
[ 191.298460][ T5974] Rebooting in 86400 seconds..