T36] audit: type=1400 audit(1770572418.750:62): avc: denied { rlimitinh } for pid=231 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 13.054266][ T36] audit: type=1400 audit(1770572418.750:63): avc: denied { siginh } for pid=231 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.0.31' (ED25519) to the list of known hosts. 2026/02/08 17:40:27 parsed 1 programs [ 21.954758][ T36] audit: type=1400 audit(1770572427.660:64): avc: denied { node_bind } for pid=290 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 22.998236][ T36] audit: type=1400 audit(1770572428.700:65): avc: denied { mounton } for pid=298 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 [ 22.999286][ T298] cgroup: Unknown subsys name 'net' [ 23.021118][ T36] audit: type=1400 audit(1770572428.700:66): avc: denied { mount } for pid=298 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 [ 23.048448][ T36] audit: type=1400 audit(1770572428.730:67): avc: denied { unmount } for pid=298 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 23.048616][ T298] cgroup: Unknown subsys name 'devices' [ 23.212513][ T298] cgroup: Unknown subsys name 'hugetlb' [ 23.218125][ T298] cgroup: Unknown subsys name 'rlimit' [ 23.379638][ T36] audit: type=1400 audit(1770572429.080:68): avc: denied { setattr } for pid=298 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 [ 23.402898][ T36] audit: type=1400 audit(1770572429.090:69): avc: denied { create } for pid=298 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 [ 23.421824][ T300] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 23.423630][ T36] audit: type=1400 audit(1770572429.090:70): avc: denied { write } for pid=298 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 23.450328][ T298] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 23.452912][ T36] audit: type=1400 audit(1770572429.090:71): avc: denied { read } for pid=298 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 23.482438][ T36] audit: type=1400 audit(1770572429.090:72): avc: denied { sys_module } for pid=298 comm="syz-executor" capability=16 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability permissive=1 [ 23.503570][ T36] audit: type=1400 audit(1770572429.090:73): avc: denied { mounton } for pid=298 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 [ 24.448820][ T302] 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. [ 25.270432][ T350] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.277491][ T350] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.284740][ T350] bridge_slave_0: entered allmulticast mode [ 25.291045][ T350] bridge_slave_0: entered promiscuous mode [ 25.298299][ T350] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.305534][ T350] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.313368][ T350] bridge_slave_1: entered allmulticast mode [ 25.319865][ T350] bridge_slave_1: entered promiscuous mode [ 25.365902][ T350] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.373170][ T350] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.380592][ T350] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.387710][ T350] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.407848][ T319] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.415450][ T319] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.426066][ T46] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.433173][ T46] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.442722][ T319] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.449892][ T319] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.475863][ T350] veth0_vlan: entered promiscuous mode [ 25.486762][ T350] veth1_macvtap: entered promiscuous mode [ 25.543380][ T13] bridge_slave_1: left allmulticast mode [ 25.549064][ T13] bridge_slave_1: left promiscuous mode [ 25.554998][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.563099][ T13] bridge_slave_0: left allmulticast mode [ 25.568757][ T13] bridge_slave_0: left promiscuous mode [ 25.574559][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.702920][ T13] veth1_macvtap: left promiscuous mode [ 25.708550][ T13] veth0_vlan: left promiscuous mode 2026/02/08 17:40:31 executed programs: 0 [ 25.834740][ T371] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.841853][ T371] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.848990][ T371] bridge_slave_0: entered allmulticast mode [ 25.855460][ T371] bridge_slave_0: entered promiscuous mode [ 25.862338][ T371] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.869402][ T371] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.876614][ T371] bridge_slave_1: entered allmulticast mode [ 25.882840][ T371] bridge_slave_1: entered promiscuous mode [ 25.924088][ T371] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.931257][ T371] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.938497][ T371] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.945567][ T371] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.965731][ T46] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.973404][ T46] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.983284][ T319] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.990370][ T319] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.999836][ T46] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.006980][ T46] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.031018][ T371] veth0_vlan: entered promiscuous mode [ 26.041321][ T371] veth1_macvtap: entered promiscuous mode [ 26.097989][ T371] ------------[ cut here ]------------ [ 26.103644][ T371] WARNING: CPU: 0 PID: 371 at fs/inode.c:340 drop_nlink+0xce/0x110 [ 26.111704][ T371] Modules linked in: [ 26.115614][ T371] CPU: 0 UID: 0 PID: 371 Comm: syz-executor Not tainted syzkaller #0 e538f3f6a543b135812147031d083fd1f2699041 [ 26.127357][ T371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 [ 26.137895][ T371] RIP: 0010:drop_nlink+0xce/0x110 [ 26.143134][ T371] Code: 04 00 00 be 08 00 00 00 e8 bf 25 ee ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 52 57 96 ff <0f> 0b eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 59 ff ff ff 4c [ 26.163136][ T371] RSP: 0018:ffffc90000fbfc60 EFLAGS: 00010293 [ 26.169524][ T371] RAX: ffffffff81f145be RBX: ffff8881159221e8 RCX: ffff888114aba600 [ 26.177582][ T371] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 26.185783][ T371] RBP: ffffc90000fbfc88 R08: 0000000000000003 R09: 0000000000000004 [ 26.194120][ T371] R10: dffffc0000000000 R11: fffff520001f7f7c R12: dffffc0000000000 [ 26.202141][ T371] R13: 1ffff11022b24446 R14: ffff888115922230 R15: 0000000000000000 [ 26.210180][ T371] FS: 0000555575acb500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 26.219138][ T371] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.225844][ T371] CR2: 0000555575aee948 CR3: 0000000112eb4000 CR4: 00000000003526b0 [ 26.234047][ T371] Call Trace: [ 26.237330][ T371] [ 26.240289][ T371] shmem_rmdir+0x5f/0x90 [ 26.244550][ T371] vfs_rmdir+0x3e3/0x560 [ 26.248784][ T371] incfs_kill_sb+0x109/0x230 [ 26.253400][ T371] deactivate_locked_super+0xd5/0x2a0 [ 26.258781][ T371] deactivate_super+0xb8/0xe0 [ 26.263482][ T371] cleanup_mnt+0x406/0x4a0 [ 26.267913][ T371] __cleanup_mnt+0x1d/0x40 [ 26.272444][ T371] task_work_run+0x1e5/0x260 [ 26.277053][ T371] ? __cfi_task_work_run+0x10/0x10 [ 26.282230][ T371] ? __x64_sys_umount+0x12e/0x180 [ 26.287267][ T371] ? __cfi___x64_sys_umount+0x10/0x10 [ 26.292691][ T371] ? __kasan_check_read+0x15/0x20 [ 26.297817][ T371] resume_user_mode_work+0x35/0x50 [ 26.303041][ T371] syscall_exit_to_user_mode+0x63/0xb0 [ 26.308512][ T371] do_syscall_64+0x63/0xf0 [ 26.313033][ T371] ? clear_bhb_loop+0x50/0xa0 [ 26.317730][ T371] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 26.323830][ T371] RIP: 0033:0x7f3c46b9c117 [ 26.328347][ T371] Code: a2 c7 05 7c c4 24 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 [ 26.348088][ T371] RSP: 002b:00007ffdac6bda18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 26.356911][ T371] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f3c46b9c117 [ 26.365193][ T371] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdac6bdad0 [ 26.373349][ T371] RBP: 00007ffdac6bdad0 R08: 00007ffdac6bead0 R09: 00000000ffffffff [ 26.381458][ T371] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdac6beb60 [ 26.389526][ T371] R13: 00007f3c46c0471f R14: 00000000000065d3 R15: 00007ffdac6beba0 [ 26.397880][ T371] [ 26.401054][ T371] ---[ end trace 0000000000000000 ]--- [ 26.406717][ T371] ================================================================== [ 26.415051][ T371] BUG: KASAN: null-ptr-deref in ihold+0x24/0x70 [ 26.421379][ T371] Write of size 4 at addr 0000000000000168 by task syz-executor/371 [ 26.429521][ T371] [ 26.432444][ T371] CPU: 1 UID: 0 PID: 371 Comm: syz-executor Tainted: G W syzkaller #0 e538f3f6a543b135812147031d083fd1f2699041 [ 26.432464][ T371] Tainted: [W]=WARN [ 26.432469][ T371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 [ 26.432476][ T371] Call Trace: [ 26.432480][ T371] [ 26.432485][ T371] __dump_stack+0x21/0x30 [ 26.432503][ T371] dump_stack_lvl+0x140/0x1c0 [ 26.432516][ T371] ? __cfi_dump_stack_lvl+0x10/0x10 [ 26.432530][ T371] print_report+0x3d/0x70 [ 26.432543][ T371] kasan_report+0x162/0x1a0 [ 26.432559][ T371] ? ihold+0x24/0x70 [ 26.432574][ T371] ? _raw_spin_unlock+0x45/0x60 [ 26.432589][ T371] ? ihold+0x24/0x70 [ 26.432603][ T371] kasan_check_range+0x25a/0x2b0 [ 26.432619][ T371] __kasan_check_write+0x18/0x20 [ 26.432631][ T371] ihold+0x24/0x70 [ 26.432645][ T371] vfs_rmdir+0x26a/0x560 [ 26.432656][ T371] incfs_kill_sb+0x109/0x230 [ 26.432669][ T371] deactivate_locked_super+0xd5/0x2a0 [ 26.432681][ T371] deactivate_super+0xb8/0xe0 [ 26.432691][ T371] cleanup_mnt+0x406/0x4a0 [ 26.432706][ T371] __cleanup_mnt+0x1d/0x40 [ 26.432720][ T371] task_work_run+0x1e5/0x260 [ 26.432733][ T371] ? __cfi_task_work_run+0x10/0x10 [ 26.432745][ T371] ? __x64_sys_umount+0x12e/0x180 [ 26.432756][ T371] ? __cfi___x64_sys_umount+0x10/0x10 [ 26.432768][ T371] ? __kasan_check_read+0x15/0x20 [ 26.432781][ T371] resume_user_mode_work+0x35/0x50 [ 26.432795][ T371] syscall_exit_to_user_mode+0x63/0xb0 [ 26.432809][ T371] do_syscall_64+0x63/0xf0 [ 26.432824][ T371] ? clear_bhb_loop+0x50/0xa0 [ 26.432838][ T371] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 26.432853][ T371] RIP: 0033:0x7f3c46b9c117 [ 26.432864][ T371] Code: a2 c7 05 7c c4 24 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 [ 26.432874][ T371] RSP: 002b:00007ffdac6bda18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 26.432888][ T371] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f3c46b9c117 [ 26.432896][ T371] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdac6bdad0 [ 26.432903][ T371] RBP: 00007ffdac6bdad0 R08: 00007ffdac6bead0 R09: 00000000ffffffff [ 26.432912][ T371] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdac6beb60 [ 26.432919][ T371] R13: 00007f3c46c0471f R14: 00000000000065d3 R15: 00007ffdac6beba0 [ 26.432929][ T371] [ 26.432933][ T371] ================================================================== [ 26.681470][ T371] Disabling lock debugging due to kernel taint [ 26.687824][ T371] BUG: kernel NULL pointer dereference, address: 0000000000000168 [ 26.695615][ T371] #PF: supervisor write access in kernel mode [ 26.701770][ T371] #PF: error_code(0x0002) - not-present page [ 26.707831][ T371] PGD 8000000124da9067 P4D 8000000124da9067 PUD 0 [ 26.714413][ T371] Oops: Oops: 0002 [#1] PREEMPT SMP KASAN PTI [ 26.720558][ T371] CPU: 1 UID: 0 PID: 371 Comm: syz-executor Tainted: G B W syzkaller #0 e538f3f6a543b135812147031d083fd1f2699041 [ 26.733829][ T371] Tainted: [B]=BAD_PAGE, [W]=WARN [ 26.738838][ T371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 [ 26.748977][ T371] RIP: 0010:ihold+0x2a/0x70 [ 26.753770][ T371] Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 3d 4e 96 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 7c 1c 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 4d [ 26.774254][ T371] RSP: 0018:ffffc90000fbfca0 EFLAGS: 00010246 [ 26.780671][ T371] RAX: ffff888114aba600 RBX: 0000000000000000 RCX: ffff888114aba600 [ 26.788638][ T371] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 26.796627][ T371] RBP: ffffc90000fbfcb0 R08: ffffffff88b8c947 R09: 1ffffffff1171928 [ 26.804604][ T371] R10: dffffc0000000000 R11: fffffbfff1171929 R12: ffff8881159221f4 [ 26.812866][ T371] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 [ 26.820946][ T371] FS: 0000555575acb500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 26.830190][ T371] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.836768][ T371] CR2: 0000000000000168 CR3: 0000000112eb4000 CR4: 00000000003526b0 [ 26.844835][ T371] Call Trace: [ 26.848229][ T371] [ 26.851178][ T371] vfs_rmdir+0x26a/0x560 [ 26.855426][ T371] incfs_kill_sb+0x109/0x230 [ 26.860108][ T371] deactivate_locked_super+0xd5/0x2a0 [ 26.865531][ T371] deactivate_super+0xb8/0xe0 [ 26.870211][ T371] cleanup_mnt+0x406/0x4a0 [ 26.874849][ T371] __cleanup_mnt+0x1d/0x40 [ 26.879438][ T371] task_work_run+0x1e5/0x260 [ 26.884122][ T371] ? __cfi_task_work_run+0x10/0x10 [ 26.889227][ T371] ? __x64_sys_umount+0x12e/0x180 [ 26.894407][ T371] ? __cfi___x64_sys_umount+0x10/0x10 [ 26.899794][ T371] ? __kasan_check_read+0x15/0x20 [ 26.904826][ T371] resume_user_mode_work+0x35/0x50 [ 26.909928][ T371] syscall_exit_to_user_mode+0x63/0xb0 [ 26.915389][ T371] do_syscall_64+0x63/0xf0 [ 26.919814][ T371] ? clear_bhb_loop+0x50/0xa0 [ 26.924482][ T371] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 26.930554][ T371] RIP: 0033:0x7f3c46b9c117 [ 26.934983][ T371] Code: a2 c7 05 7c c4 24 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 [ 26.954588][ T371] RSP: 002b:00007ffdac6bda18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 26.963016][ T371] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f3c46b9c117 [ 26.971006][ T371] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdac6bdad0 [ 26.979022][ T371] RBP: 00007ffdac6bdad0 R08: 00007ffdac6bead0 R09: 00000000ffffffff [ 26.987094][ T371] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdac6beb60 [ 26.995062][ T371] R13: 00007f3c46c0471f R14: 00000000000065d3 R15: 00007ffdac6beba0 [ 27.003032][ T371] [ 27.006043][ T371] Modules linked in: [ 27.010048][ T371] CR2: 0000000000000168 [ 27.014473][ T371] ---[ end trace 0000000000000000 ]--- [ 27.019953][ T371] RIP: 0010:ihold+0x2a/0x70 [ 27.024492][ T371] Code: f3 0f 1e fa 55 48 89 e5 41 56 53 48 89 fb e8 3d 4e 96 ff 48 8d bb 68 01 00 00 be 04 00 00 00 e8 7c 1c 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 4d [ 27.044274][ T371] RSP: 0018:ffffc90000fbfca0 EFLAGS: 00010246 [ 27.050352][ T371] RAX: ffff888114aba600 RBX: 0000000000000000 RCX: ffff888114aba600 [ 27.058489][ T371] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 27.066661][ T371] RBP: ffffc90000fbfcb0 R08: ffffffff88b8c947 R09: 1ffffffff1171928 [ 27.074769][ T371] R10: dffffc0000000000 R11: fffffbfff1171929 R12: ffff8881159221f4 [ 27.082842][ T371] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 [ 27.090988][ T371] FS: 0000555575acb500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 27.099937][ T371] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.106715][ T371] CR2: 0000000000000168 CR3: 0000000112eb4000 CR4: 00000000003526b0 [ 27.114707][ T371] Kernel panic - not syncing: Fatal exception [ 27.121399][ T371] Kernel Offset: disabled [ 27.125736][ T371] Rebooting in 86400 seconds..