cess permissive=1 [ 21.034845][ T36] audit: type=1400 audit(1784324467.850:63): avc: denied { siginh } for pid=274 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.0.222' (ED25519) to the list of known hosts. 2026/07/17 21:41:17 parsed 1 programs 2026/07/17 21:41:17 serving rpc on tcp://45155 [ 30.828555][ T36] audit: type=1400 audit(1784324477.650:64): avc: denied { node_bind } for pid=302 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 32.074014][ T36] audit: type=1400 audit(1784324478.900:65): avc: denied { mounton } for pid=308 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2024 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 32.075331][ T308] cgroup: Unknown subsys name 'net' [ 32.098522][ T36] audit: type=1400 audit(1784324478.900:66): avc: denied { mount } for pid=308 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 32.126650][ T36] audit: type=1400 audit(1784324478.940:67): avc: denied { unmount } for pid=308 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 32.126885][ T308] cgroup: Unknown subsys name 'devices' [ 32.250985][ T308] cgroup: Unknown subsys name 'hugetlb' [ 32.256662][ T308] cgroup: Unknown subsys name 'rlimit' [ 32.375741][ T36] audit: type=1400 audit(1784324479.200:68): avc: denied { setattr } for pid=308 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=190 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 32.400055][ T36] audit: type=1400 audit(1784324479.200:69): avc: denied { create } for pid=308 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 32.420819][ T36] audit: type=1400 audit(1784324479.200:70): avc: denied { write } for pid=308 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 32.441296][ T36] audit: type=1400 audit(1784324479.200:71): avc: denied { read } for pid=308 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 32.450455][ T312] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). Setting up swapspace version 1, size = 127995904 bytes [ 32.461823][ T36] audit: type=1400 audit(1784324479.200:72): avc: denied { sys_module } for pid=308 comm="syz-executor" capability=16 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability permissive=1 [ 32.491415][ T36] audit: type=1400 audit(1784324479.200:73): avc: denied { mounton } for pid=308 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1 [ 32.535252][ T308] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 33.538128][ T315] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 34.164070][ T358] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.171443][ T358] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.178754][ T358] bridge_slave_0: entered allmulticast mode [ 34.185285][ T358] bridge_slave_0: entered promiscuous mode [ 34.191757][ T358] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.198810][ T358] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.206022][ T358] bridge_slave_1: entered allmulticast mode [ 34.212713][ T358] bridge_slave_1: entered promiscuous mode [ 34.261171][ T358] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.268542][ T358] bridge0: port 2(bridge_slave_1) entered forwarding state [ 34.276439][ T358] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.283626][ T358] bridge0: port 1(bridge_slave_0) entered forwarding state [ 34.304341][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.312263][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.322175][ T46] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.329358][ T46] bridge0: port 1(bridge_slave_0) entered forwarding state [ 34.339491][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.346563][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 34.374598][ T358] veth0_vlan: entered promiscuous mode [ 34.386238][ T358] veth1_macvtap: entered promiscuous mode [ 34.550301][ T322] bridge_slave_1: left allmulticast mode [ 34.556109][ T322] bridge_slave_1: left promiscuous mode [ 34.579522][ T322] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.587412][ T322] bridge_slave_0: left allmulticast mode [ 34.593367][ T322] bridge_slave_0: left promiscuous mode [ 34.599741][ T322] bridge0: port 1(bridge_slave_0) entered disabled state 2026/07/17 21:41:21 executed programs: 0 [ 34.733861][ T322] veth1_macvtap: left promiscuous mode [ 34.739463][ T322] veth0_vlan: left promiscuous mode [ 34.796489][ T376] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.803954][ T376] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.812236][ T376] bridge_slave_0: entered allmulticast mode [ 34.818862][ T376] bridge_slave_0: entered promiscuous mode [ 34.826426][ T376] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.833820][ T376] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.841450][ T376] bridge_slave_1: entered allmulticast mode [ 34.847819][ T376] bridge_slave_1: entered promiscuous mode [ 34.887558][ T376] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.894853][ T376] bridge0: port 2(bridge_slave_1) entered forwarding state [ 34.902476][ T376] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.909757][ T376] bridge0: port 1(bridge_slave_0) entered forwarding state [ 34.930082][ T46] bridge0: port 1(bridge_slave_0) entered disabled state [ 34.937561][ T46] bridge0: port 2(bridge_slave_1) entered disabled state [ 34.946916][ T362] bridge0: port 1(bridge_slave_0) entered blocking state [ 34.954802][ T362] bridge0: port 1(bridge_slave_0) entered forwarding state [ 34.964275][ T46] bridge0: port 2(bridge_slave_1) entered blocking state [ 34.971567][ T46] bridge0: port 2(bridge_slave_1) entered forwarding state [ 34.996112][ T376] veth0_vlan: entered promiscuous mode [ 35.007905][ T376] veth1_macvtap: entered promiscuous mode [ 35.043301][ T376] ------------[ cut here ]------------ [ 35.049119][ T376] WARNING: CPU: 0 PID: 376 at fs/inode.c:340 drop_nlink+0xce/0x110 [ 35.057055][ T376] Modules linked in: [ 35.061123][ T376] CPU: 0 UID: 0 PID: 376 Comm: syz-executor Not tainted syzkaller #0 aa47339593e321b90b560b4c24185f0bcfbb52ab [ 35.072968][ T376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 [ 35.083194][ T376] RIP: 0010:drop_nlink+0xce/0x110 [ 35.088365][ T376] Code: 04 00 00 be 08 00 00 00 e8 4f 14 ee ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d e9 c8 ca b3 03 cc e8 d2 5d 95 ff <0f> 0b eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 59 ff ff ff 4c [ 35.108753][ T376] RSP: 0018:ffffc9000110fc88 EFLAGS: 00010293 [ 35.115066][ T376] RAX: ffffffff81f2141e RBX: ffff888116266958 RCX: ffff888114694c00 [ 35.123114][ T376] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 35.131454][ T376] RBP: ffffc9000110fcb0 R08: 0000000000000003 R09: 0000000000000004 [ 35.139526][ T376] R10: dffffc0000000000 R11: fffff52000221f80 R12: dffffc0000000000 [ 35.147606][ T376] R13: 1ffff11022c4cd34 R14: ffff8881162669a0 R15: 0000000000000000 [ 35.155652][ T376] FS: 000055558c350500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 35.164876][ T376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.171698][ T376] CR2: 000055558c373958 CR3: 000000010cfa4000 CR4: 00000000003526b0 [ 35.180695][ T376] Call Trace: [ 35.184186][ T376] [ 35.187162][ T376] shmem_rmdir+0x5f/0x90 [ 35.191548][ T376] vfs_rmdir+0x3db/0x560 [ 35.195917][ T376] incfs_kill_sb+0x102/0x220 [ 35.200626][ T376] deactivate_locked_super+0xd2/0x270 [ 35.206070][ T376] deactivate_super+0xb8/0xe0 [ 35.210942][ T376] cleanup_mnt+0x438/0x4d0 [ 35.215422][ T376] __cleanup_mnt+0x1d/0x40 [ 35.219933][ T376] task_work_run+0x1e8/0x260 [ 35.224569][ T376] ? __cfi_task_work_run+0x10/0x10 [ 35.229737][ T376] ? __x64_sys_umount+0x12e/0x180 [ 35.234796][ T376] ? __cfi___x64_sys_umount+0x10/0x10 [ 35.240242][ T376] ? __kasan_check_read+0x15/0x20 [ 35.245325][ T376] resume_user_mode_work+0x35/0x50 [ 35.250683][ T376] syscall_exit_to_user_mode+0x63/0xb0 [ 35.256184][ T376] do_syscall_64+0x63/0xf0 [ 35.260744][ T376] ? clear_bhb_loop+0x50/0xa0 [ 35.265463][ T376] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 35.271879][ T376] RIP: 0033:0x7f4dc3d9f0d7 [ 35.276331][ T376] Code: a2 c7 05 1c 26 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 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 e8 ff ff ff f7 d8 64 89 02 b8 [ 35.296315][ T376] RSP: 002b:00007fff13b4d878 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 35.304901][ T376] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f4dc3d9f0d7 [ 35.313288][ T376] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff13b4d930 [ 35.321331][ T376] RBP: 00007fff13b4d930 R08: 00007fff13b4e930 R09: 00000000ffffffff [ 35.329617][ T376] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff13b4e9c0 [ 35.337627][ T376] R13: 00007f4dc3e3330a R14: 00000000000088cb R15: 00007fff13b4ea00 [ 35.345947][ T376] [ 35.349066][ T376] ---[ end trace 0000000000000000 ]--- [ 35.354716][ T376] ================================================================== [ 35.362892][ T376] BUG: KASAN: null-ptr-deref in ihold+0x24/0x70 [ 35.369245][ T376] Write of size 4 at addr 0000000000000168 by task syz-executor/376 [ 35.377276][ T376] [ 35.379613][ T376] CPU: 1 UID: 0 PID: 376 Comm: syz-executor Tainted: G W syzkaller #0 aa47339593e321b90b560b4c24185f0bcfbb52ab [ 35.379643][ T376] Tainted: [W]=WARN [ 35.379648][ T376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 [ 35.379656][ T376] Call Trace: [ 35.379661][ T376] [ 35.379666][ T376] __dump_stack+0x21/0x30 [ 35.379692][ T376] dump_stack_lvl+0x140/0x1c0 [ 35.379709][ T376] ? __cfi_dump_stack_lvl+0x10/0x10 [ 35.379727][ T376] print_report+0x3d/0x70 [ 35.379744][ T376] kasan_report+0x162/0x1a0 [ 35.379760][ T376] ? ihold+0x24/0x70 [ 35.379776][ T376] ? ihold+0x24/0x70 [ 35.379790][ T376] kasan_check_range+0x25a/0x2b0 [ 35.379806][ T376] __kasan_check_write+0x18/0x20 [ 35.379818][ T376] ihold+0x24/0x70 [ 35.379832][ T376] vfs_rmdir+0x25c/0x560 [ 35.379850][ T376] incfs_kill_sb+0x102/0x220 [ 35.379864][ T376] deactivate_locked_super+0xd2/0x270 [ 35.379886][ T376] deactivate_super+0xb8/0xe0 [ 35.379902][ T376] cleanup_mnt+0x438/0x4d0 [ 35.379917][ T376] __cleanup_mnt+0x1d/0x40 [ 35.379931][ T376] task_work_run+0x1e8/0x260 [ 35.379948][ T376] ? __cfi_task_work_run+0x10/0x10 [ 35.379964][ T376] ? __x64_sys_umount+0x12e/0x180 [ 35.379982][ T376] ? __cfi___x64_sys_umount+0x10/0x10 [ 35.380001][ T376] ? __kasan_check_read+0x15/0x20 [ 35.380013][ T376] resume_user_mode_work+0x35/0x50 [ 35.380033][ T376] syscall_exit_to_user_mode+0x63/0xb0 [ 35.380052][ T376] do_syscall_64+0x63/0xf0 [ 35.380065][ T376] ? clear_bhb_loop+0x50/0xa0 [ 35.380081][ T376] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 35.380097][ T376] RIP: 0033:0x7f4dc3d9f0d7 [ 35.380111][ T376] Code: a2 c7 05 1c 26 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 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 e8 ff ff ff f7 d8 64 89 02 b8 [ 35.380121][ T376] RSP: 002b:00007fff13b4d878 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 35.380138][ T376] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f4dc3d9f0d7 [ 35.380147][ T376] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff13b4d930 [ 35.380155][ T376] RBP: 00007fff13b4d930 R08: 00007fff13b4e930 R09: 00000000ffffffff [ 35.380164][ T376] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff13b4e9c0 [ 35.380173][ T376] R13: 00007f4dc3e3330a R14: 00000000000088cb R15: 00007fff13b4ea00 [ 35.380183][ T376] [ 35.380188][ T376] ================================================================== [ 35.624246][ T376] Disabling lock debugging due to kernel taint [ 35.630497][ T376] BUG: kernel NULL pointer dereference, address: 0000000000000168 [ 35.638433][ T376] #PF: supervisor write access in kernel mode [ 35.644491][ T376] #PF: error_code(0x0002) - not-present page [ 35.650735][ T376] PGD 8000000122b5b067 P4D 8000000122b5b067 PUD 0 [ 35.657408][ T376] Oops: Oops: 0002 [#1] PREEMPT SMP KASAN PTI [ 35.663587][ T376] CPU: 1 UID: 0 PID: 376 Comm: syz-executor Tainted: G B W syzkaller #0 aa47339593e321b90b560b4c24185f0bcfbb52ab [ 35.676980][ T376] Tainted: [B]=BAD_PAGE, [W]=WARN [ 35.682205][ T376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 [ 35.692381][ T376] RIP: 0010:ihold+0x2a/0x70 [ 35.696922][ T376] Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 bd 54 95 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 0c 0b ee ff 41 be 01 00 00 00 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 cd [ 35.716610][ T376] RSP: 0018:ffffc9000110fcc8 EFLAGS: 00010246 [ 35.722704][ T376] RAX: ffff888114694c00 RBX: 0000000000000000 RCX: ffff888114694c00 [ 35.730699][ T376] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 35.738788][ T376] RBP: ffffc9000110fcd8 R08: ffffffff88bb2947 R09: 1ffffffff1176528 [ 35.746769][ T376] R10: dffffc0000000000 R11: fffffbfff1176529 R12: 0000000000000000 [ 35.754739][ T376] R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000 [ 35.762799][ T376] FS: 000055558c350500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 35.771748][ T376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.778621][ T376] CR2: 0000000000000168 CR3: 000000010cfa4000 CR4: 00000000003526b0 [ 35.787238][ T376] Call Trace: [ 35.790988][ T376] [ 35.793948][ T376] vfs_rmdir+0x25c/0x560 [ 35.798235][ T376] incfs_kill_sb+0x102/0x220 [ 35.803035][ T376] deactivate_locked_super+0xd2/0x270 [ 35.808444][ T376] deactivate_super+0xb8/0xe0 [ 35.813762][ T376] cleanup_mnt+0x438/0x4d0 [ 35.818294][ T376] __cleanup_mnt+0x1d/0x40 [ 35.823003][ T376] task_work_run+0x1e8/0x260 [ 35.827645][ T376] ? __cfi_task_work_run+0x10/0x10 [ 35.832793][ T376] ? __x64_sys_umount+0x12e/0x180 [ 35.837843][ T376] ? __cfi___x64_sys_umount+0x10/0x10 [ 35.843238][ T376] ? __kasan_check_read+0x15/0x20 [ 35.848276][ T376] resume_user_mode_work+0x35/0x50 [ 35.853392][ T376] syscall_exit_to_user_mode+0x63/0xb0 [ 35.858858][ T376] do_syscall_64+0x63/0xf0 [ 35.863267][ T376] ? clear_bhb_loop+0x50/0xa0 [ 35.868041][ T376] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 35.874186][ T376] RIP: 0033:0x7f4dc3d9f0d7 [ 35.878618][ T376] Code: a2 c7 05 1c 26 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 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 e8 ff ff ff f7 d8 64 89 02 b8 [ 35.898510][ T376] RSP: 002b:00007fff13b4d878 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 35.906955][ T376] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f4dc3d9f0d7 [ 35.915153][ T376] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff13b4d930 [ 35.923133][ T376] RBP: 00007fff13b4d930 R08: 00007fff13b4e930 R09: 00000000ffffffff [ 35.931124][ T376] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff13b4e9c0 [ 35.939369][ T376] R13: 00007f4dc3e3330a R14: 00000000000088cb R15: 00007fff13b4ea00 [ 35.947494][ T376] [ 35.950545][ T376] Modules linked in: [ 35.954451][ T376] CR2: 0000000000000168 [ 35.958608][ T376] ---[ end trace 0000000000000000 ]--- [ 35.964174][ T376] RIP: 0010:ihold+0x2a/0x70 [ 35.968703][ T376] Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 bd 54 95 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 0c 0b ee ff 41 be 01 00 00 00 44 0f c1 b3 68 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 cd [ 35.988842][ T376] RSP: 0018:ffffc9000110fcc8 EFLAGS: 00010246 [ 35.994956][ T376] RAX: ffff888114694c00 RBX: 0000000000000000 RCX: ffff888114694c00 [ 36.002941][ T376] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 36.011011][ T376] RBP: ffffc9000110fcd8 R08: ffffffff88bb2947 R09: 1ffffffff1176528 [ 36.019189][ T376] R10: dffffc0000000000 R11: fffffbfff1176529 R12: 0000000000000000 [ 36.027266][ T376] R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000 [ 36.035257][ T376] FS: 000055558c350500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 36.044217][ T376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.050825][ T376] CR2: 0000000000000168 CR3: 000000010cfa4000 CR4: 00000000003526b0 [ 36.058897][ T376] Kernel panic - not syncing: Fatal exception [ 36.065263][ T376] Kernel Offset: disabled [ 36.069603][ T376] Rebooting in 86400 seconds..