Warning: Permanently added '10.128.0.75' (ED25519) to the list of known hosts. 2025/12/26 10:07:06 parsed 1 programs [ 24.464306][ T28] audit: type=1400 audit(1766743626.599:64): avc: denied { node_bind } for pid=283 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 24.485045][ T28] audit: type=1400 audit(1766743626.599:65): avc: denied { module_request } for pid=283 comm="syz-execprog" kmod="net-pf-2-proto-262-type-1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 25.616197][ T28] audit: type=1400 audit(1766743627.749:66): avc: denied { mounton } for pid=291 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2023 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 25.619620][ T291] cgroup: Unknown subsys name 'net' [ 25.639077][ T28] audit: type=1400 audit(1766743627.749:67): avc: denied { mount } for pid=291 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 [ 25.666269][ T28] audit: type=1400 audit(1766743627.779:68): avc: denied { unmount } for pid=291 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 25.666712][ T291] cgroup: Unknown subsys name 'devices' [ 25.776054][ T291] cgroup: Unknown subsys name 'hugetlb' [ 25.781685][ T291] cgroup: Unknown subsys name 'rlimit' [ 25.925374][ T28] audit: type=1400 audit(1766743628.059:69): avc: denied { setattr } for pid=291 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=258 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 25.949395][ T28] audit: type=1400 audit(1766743628.059:70): avc: denied { create } for pid=291 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.970047][ T28] audit: type=1400 audit(1766743628.059:71): avc: denied { write } for pid=291 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 25.990418][ T28] audit: type=1400 audit(1766743628.059:72): avc: denied { read } for pid=291 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 Setting up swapspace version 1, size = 127995904 bytes [ 26.010642][ T28] audit: type=1400 audit(1766743628.059:73): avc: denied { mounton } for pid=291 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 [ 26.019911][ T294] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 26.079793][ T291] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 26.753332][ T296] request_module fs-gadgetfs succeeded, but still no fs? [ 27.105856][ T313] syz-executor (313) used greatest stack depth: 22304 bytes left [ 27.562844][ T347] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.570066][ T347] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.577642][ T347] device bridge_slave_0 entered promiscuous mode [ 27.584623][ T347] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.591653][ T347] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.599195][ T347] device bridge_slave_1 entered promiscuous mode [ 27.651279][ T347] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.658439][ T347] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.665781][ T347] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.672909][ T347] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.694191][ T321] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 27.701906][ T321] bridge0: port 1(bridge_slave_0) entered disabled state [ 27.709216][ T321] bridge0: port 2(bridge_slave_1) entered disabled state [ 27.724164][ T321] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 27.732512][ T321] bridge0: port 1(bridge_slave_0) entered blocking state [ 27.739703][ T321] bridge0: port 1(bridge_slave_0) entered forwarding state [ 27.748670][ T321] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 27.757034][ T321] bridge0: port 2(bridge_slave_1) entered blocking state [ 27.764180][ T321] bridge0: port 2(bridge_slave_1) entered forwarding state [ 27.781690][ T321] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 27.793441][ T321] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 27.806097][ T321] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 27.817607][ T321] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 27.825861][ T321] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 27.833276][ T321] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 27.847816][ T347] device veth0_vlan entered promiscuous mode [ 27.858427][ T321] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 27.867675][ T347] device veth1_macvtap entered promiscuous mode [ 27.877390][ T321] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 27.887402][ T321] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 27.922536][ T347] syz-executor (347) used greatest stack depth: 21248 bytes left 2025/12/26 10:07:10 executed programs: 0 [ 28.192111][ T364] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.199300][ T364] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.207127][ T364] device bridge_slave_0 entered promiscuous mode [ 28.214671][ T364] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.221731][ T364] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.229228][ T364] device bridge_slave_1 entered promiscuous mode [ 28.291285][ T364] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.298446][ T364] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.305810][ T364] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.312855][ T364] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.334193][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 28.341909][ T8] bridge0: port 1(bridge_slave_0) entered disabled state [ 28.349272][ T8] bridge0: port 2(bridge_slave_1) entered disabled state [ 28.360680][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 28.369103][ T8] bridge0: port 1(bridge_slave_0) entered blocking state [ 28.376150][ T8] bridge0: port 1(bridge_slave_0) entered forwarding state [ 28.385258][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 28.393548][ T8] bridge0: port 2(bridge_slave_1) entered blocking state [ 28.400640][ T8] bridge0: port 2(bridge_slave_1) entered forwarding state [ 28.413042][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 28.422662][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 28.437795][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 28.449890][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 28.458229][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 28.466184][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 28.475448][ T364] device veth0_vlan entered promiscuous mode [ 28.486340][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 28.495827][ T364] device veth1_macvtap entered promiscuous mode [ 28.505918][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 28.516174][ T8] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 28.542074][ T374] loop2: detected capacity change from 0 to 512 [ 28.549589][ T374] EXT4-fs: Warning: mounting with data=journal disables delayed allocation, dioread_nolock, O_DIRECT and fast_commit support! [ 28.563591][ T374] EXT4-fs (loop2): encrypted files will use data=ordered instead of data journaling mode [ 28.580217][ T374] EXT4-fs warning (device loop2): ext4_expand_extra_isize_ea:2819: Unable to expand inode 15. Delete some EAs or run e2fsck. [ 28.593773][ T374] EXT4-fs (loop2): 1 truncate cleaned up [ 28.600476][ T374] EXT4-fs (loop2): mounted filesystem without journal. Quota mode: writeback. [ 28.633807][ T374] ================================================================== [ 28.641934][ T374] BUG: KASAN: out-of-bounds in ext4_xattr_set_entry+0x979/0x21d0 [ 28.649676][ T374] Read of size 18446744073709551572 at addr ffff888114986050 by task syz.2.17/374 [ 28.658959][ T374] [ 28.661293][ T374] CPU: 1 PID: 374 Comm: syz.2.17 Not tainted syzkaller #0 [ 28.668534][ T374] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 28.678626][ T374] Call Trace: [ 28.681928][ T374] [ 28.684867][ T374] __dump_stack+0x21/0x24 [ 28.689226][ T374] dump_stack_lvl+0xee/0x150 [ 28.693843][ T374] ? __cfi_dump_stack_lvl+0x8/0x8 [ 28.698878][ T374] ? ext4_xattr_block_set+0x9dc/0x3270 [ 28.704347][ T374] ? __ext4_unlink+0x673/0xb00 [ 28.709110][ T374] ? ext4_xattr_set_entry+0x979/0x21d0 [ 28.714567][ T374] print_address_description+0x71/0x200 [ 28.720136][ T374] print_report+0x4a/0x60 [ 28.724478][ T374] kasan_report+0x122/0x150 [ 28.728981][ T374] ? ext4_xattr_set_entry+0x979/0x21d0 [ 28.734450][ T374] ? ext4_xattr_set_entry+0x979/0x21d0 [ 28.739927][ T374] kasan_check_range+0x280/0x290 [ 28.744881][ T374] memmove+0x2d/0x70 [ 28.748771][ T374] ext4_xattr_set_entry+0x979/0x21d0 [ 28.754075][ T374] ext4_xattr_block_set+0xada/0x3270 [ 28.759362][ T374] ? __getblk_gfp+0x3b/0x7d0 [ 28.763959][ T374] ? xattr_find_entry+0x24c/0x300 [ 28.768986][ T374] ? ext4_xattr_block_find+0x310/0x310 [ 28.774455][ T374] ? ext4_xattr_block_find+0x295/0x310 [ 28.779931][ T374] ext4_expand_extra_isize_ea+0xf30/0x1990 [ 28.785744][ T374] __ext4_expand_extra_isize+0x2fe/0x3e0 [ 28.791388][ T374] __ext4_mark_inode_dirty+0x3cf/0x600 [ 28.796849][ T374] __ext4_unlink+0x673/0xb00 [ 28.801456][ T374] ? memcpy+0x56/0x70 [ 28.805436][ T374] ? __cfi___ext4_unlink+0x10/0x10 [ 28.810572][ T374] ? dquot_initialize+0x20/0x20 [ 28.815425][ T374] ? clear_nonspinnable+0x60/0x60 [ 28.820460][ T374] ext4_unlink+0x13a/0x3a0 [ 28.824898][ T374] vfs_unlink+0x39f/0x630 [ 28.829227][ T374] do_unlinkat+0x31f/0x6b0 [ 28.833639][ T374] ? __cfi_do_unlinkat+0x10/0x10 [ 28.838775][ T374] ? getname_flags+0x206/0x500 [ 28.843986][ T374] __x64_sys_unlink+0x49/0x50 [ 28.848704][ T374] x64_sys_call+0x958/0x9a0 [ 28.853204][ T374] do_syscall_64+0x4c/0xa0 [ 28.857615][ T374] ? clear_bhb_loop+0x30/0x80 [ 28.862293][ T374] ? clear_bhb_loop+0x30/0x80 [ 28.866966][ T374] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 28.872868][ T374] RIP: 0033:0x7ff76438f749 [ 28.877285][ T374] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 28.896891][ T374] RSP: 002b:00007ffcd1276e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 [ 28.905317][ T374] RAX: ffffffffffffffda RBX: 00007ff7645e5fa0 RCX: 00007ff76438f749 [ 28.913285][ T374] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000180 [ 28.921279][ T374] RBP: 00007ff764413f91 R08: 0000000000000000 R09: 0000000000000000 [ 28.929246][ T374] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 28.937215][ T374] R13: 00007ff7645e5fa0 R14: 00007ff7645e5fa0 R15: 0000000000000001 [ 28.945206][ T374] [ 28.948224][ T374] [ 28.950539][ T374] Allocated by task 374: [ 28.954766][ T374] kasan_set_track+0x4b/0x70 [ 28.959358][ T374] kasan_save_alloc_info+0x25/0x30 [ 28.964468][ T374] __kasan_kmalloc+0x95/0xb0 [ 28.969054][ T374] __kmalloc_node_track_caller+0xb1/0x1e0 [ 28.974765][ T374] kmemdup+0x2b/0x60 [ 28.978658][ T374] ext4_xattr_block_set+0x9dc/0x3270 [ 28.983947][ T374] ext4_expand_extra_isize_ea+0xf30/0x1990 [ 28.989776][ T374] __ext4_expand_extra_isize+0x2fe/0x3e0 [ 28.995423][ T374] __ext4_mark_inode_dirty+0x3cf/0x600 [ 29.000877][ T374] __ext4_unlink+0x673/0xb00 [ 29.005480][ T374] ext4_unlink+0x13a/0x3a0 [ 29.009892][ T374] vfs_unlink+0x39f/0x630 [ 29.014219][ T374] do_unlinkat+0x31f/0x6b0 [ 29.018639][ T374] __x64_sys_unlink+0x49/0x50 [ 29.023311][ T374] x64_sys_call+0x958/0x9a0 [ 29.027812][ T374] do_syscall_64+0x4c/0xa0 [ 29.032222][ T374] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 29.038120][ T374] [ 29.040438][ T374] The buggy address belongs to the object at ffff888114986000 [ 29.040438][ T374] which belongs to the cache kmalloc-1k of size 1024 [ 29.054481][ T374] The buggy address is located 80 bytes inside of [ 29.054481][ T374] 1024-byte region [ffff888114986000, ffff888114986400) [ 29.067747][ T374] [ 29.070062][ T374] The buggy address belongs to the physical page: [ 29.076469][ T374] page:ffffea0004526000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x114980 [ 29.086711][ T374] head:ffffea0004526000 order:3 compound_mapcount:0 compound_pincount:0 [ 29.095032][ T374] flags: 0x4000000000010200(slab|head|zone=1) [ 29.101107][ T374] raw: 4000000000010200 ffffea0004524400 dead000000000002 ffff888100043080 [ 29.109684][ T374] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 29.118253][ T374] page dumped because: kasan: bad access detected [ 29.124663][ T374] page_owner tracks the page as allocated [ 29.130368][ T374] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 117, tgid 117 (udevadm), ts 5974157227, free_ts 0 [ 29.150159][ T374] post_alloc_hook+0x1f5/0x210 [ 29.154929][ T374] prep_new_page+0x1c/0x110 [ 29.159440][ T374] get_page_from_freelist+0x2c7b/0x2cf0 [ 29.164984][ T374] __alloc_pages+0x1c3/0x450 [ 29.169572][ T374] alloc_slab_page+0x6e/0xf0 [ 29.174168][ T374] new_slab+0x98/0x3d0 [ 29.178237][ T374] ___slab_alloc+0x6bd/0xb20 [ 29.182824][ T374] __slab_alloc+0x5e/0xa0 [ 29.187328][ T374] __kmem_cache_alloc_node+0x203/0x2c0 [ 29.193226][ T374] __kmalloc_node_track_caller+0xa0/0x1e0 [ 29.198941][ T374] __alloc_skb+0x236/0x4b0 [ 29.203376][ T374] alloc_uevent_skb+0x85/0x240 [ 29.208174][ T374] kobject_uevent_net_broadcast+0x343/0x5b0 [ 29.214070][ T374] kobject_uevent_env+0x54f/0x730 [ 29.219096][ T374] kobject_synth_uevent+0x520/0xaf0 [ 29.224307][ T374] uevent_store+0x25/0x70 [ 29.228638][ T374] page_owner free stack trace missing [ 29.234000][ T374] [ 29.236337][ T374] Memory state around the buggy address: [ 29.241961][ T374] ffff888114985f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.250023][ T374] ffff888114985f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 29.258079][ T374] >ffff888114986000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 29.266130][ T374] ^ [ 29.272798][ T374] ffff888114986080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 29.280850][ T374] ffff888114986100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 29.288905][ T374] ================================================================== [ 29.298890][ T374] Disabling lock debugging due to kernel taint [ 29.316045][ T364] EXT4-fs (loop2): unmounting filesystem.