[ 31.052107][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 31.060143][ T24] bridge0: port 2(bridge_slave_1) entered blocking state [ 31.067126][ T24] bridge0: port 2(bridge_slave_1) entered forwarding state [ 31.074469][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 31.082246][ T24] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 31.095112][ T373] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 31.567842][ T9] device bridge_slave_1 left promiscuous mode [ 31.573943][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 31.581359][ T9] device bridge_slave_0 left promiscuous mode [ 31.587429][ T9] bridge0: port 1(bridge_slave_0) entered disabled state Warning: Permanently added '10.128.10.17' (ECDSA) to the list of known hosts. [ 49.477238][ T23] kauditd_printk_skb: 65 callbacks suppressed [ 49.477243][ T23] audit: type=1400 audit(1650265742.179:148): avc: denied { ioctl } for pid=407 comm="syz-executor199" path="/dev/loop-control" dev="devtmpfs" ino=114 ioctlcmd=0x4c80 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [ 49.529577][ T409] FAULT_INJECTION: forcing a failure. [ 49.529577][ T409] name failslab, interval 1, probability 0, space 0, times 1 [ 49.542178][ T409] CPU: 1 PID: 409 Comm: syz-executor199 Not tainted 5.10.43-syzkaller #0 [ 49.550557][ T409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.560584][ T409] Call Trace: [ 49.563844][ T409] dump_stack_lvl+0x81/0xac [ 49.568315][ T409] dump_stack+0x10/0x12 [ 49.572608][ T409] should_fail.cold+0x5/0x1f [ 49.577165][ T409] ? kobj_map+0x68/0x5b0 [ 49.581381][ T409] __should_failslab+0xd8/0x120 [ 49.586199][ T409] should_failslab+0x9/0x20 [ 49.590672][ T409] __kmalloc+0x61/0x3c0 [ 49.594795][ T409] kobj_map+0x68/0x5b0 [ 49.598920][ T409] ? compat_blkdev_ioctl+0x870/0x870 [ 49.604173][ T409] ? invalidate_partition+0x1a0/0x1a0 [ 49.609531][ T409] __device_add_disk+0xc73/0xfe0 [ 49.614523][ T409] ? blk_alloc_devt+0x2d0/0x2d0 [ 49.619340][ T409] ? sprintf+0xae/0xe0 [ 49.623373][ T409] ? pm_runtime_init+0x2e7/0x380 [ 49.628301][ T409] ? device_initialize+0x1f3/0x430 [ 49.633376][ T409] device_add_disk+0xe/0x10 [ 49.637845][ T409] loop_add+0x5a3/0x7a0 [ 49.641969][ T409] loop_control_ioctl+0x13a/0x3d0 [ 49.646992][ T409] ? loop_lookup+0x1a0/0x1a0 [ 49.651550][ T409] ? ksys_write+0x111/0x210 [ 49.656040][ T409] __x64_sys_ioctl+0x129/0x1a0 [ 49.660781][ T409] do_syscall_64+0x32/0x80 [ 49.665167][ T409] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.671023][ T409] RIP: 0033:0x7f535f7010a9 [ 49.675414][ T409] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 [ 49.694987][ T409] RSP: 002b:00007ffc46516738 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 49.703365][ T409] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f535f7010a9 [ 49.711301][ T409] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 49.719241][ T409] RBP: 00007ffc46516750 R08: 0000000000000002 R09: 0000000000000001 [ 49.727309][ T409] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 49.735251][ T409] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 49.779623][ T412] FAULT_INJECTION: forcing a failure. [ 49.779623][ T412] name failslab, interval 1, probability 0, space 0, times 0 [ 49.792248][ T412] CPU: 0 PID: 412 Comm: syz-executor199 Not tainted 5.10.43-syzkaller #0 [ 49.800747][ T412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.810775][ T412] Call Trace: [ 49.814041][ T412] dump_stack_lvl+0x81/0xac [ 49.818519][ T412] dump_stack+0x10/0x12 [ 49.822642][ T412] should_fail.cold+0x5/0x1f [ 49.827294][ T412] ? device_add+0xc79/0x1b20 [ 49.831851][ T412] __should_failslab+0xd8/0x120 [ 49.836909][ T412] should_failslab+0x9/0x20 [ 49.841382][ T412] kmem_cache_alloc_trace+0x3d/0x390 [ 49.846636][ T412] device_add+0xc79/0x1b20 [ 49.851018][ T412] ? dev_set_name+0xa6/0xd0 [ 49.855488][ T412] ? device_remove_bin_file+0x20/0x20 [ 49.860851][ T412] ? __fw_devlink_link_to_suppliers+0x520/0x520 [ 49.867055][ T412] ? compat_blkdev_ioctl+0x870/0x870 [ 49.872332][ T412] ? invalidate_partition+0x1a0/0x1a0 [ 49.877674][ T412] __device_add_disk+0x407/0xfe0 [ 49.882601][ T412] ? blk_alloc_devt+0x2d0/0x2d0 [ 49.887420][ T412] ? sprintf+0xae/0xe0 [ 49.891460][ T412] ? pm_runtime_init+0x2e7/0x380 [ 49.896368][ T412] ? device_initialize+0x1f3/0x430 [ 49.901446][ T412] device_add_disk+0xe/0x10 [ 49.905973][ T412] loop_add+0x5a3/0x7a0 [ 49.910100][ T412] loop_control_ioctl+0x13a/0x3d0 [ 49.915094][ T412] ? loop_lookup+0x1a0/0x1a0 [ 49.919659][ T412] ? ksys_write+0x111/0x210 [ 49.924129][ T412] __x64_sys_ioctl+0x129/0x1a0 [ 49.928861][ T412] do_syscall_64+0x32/0x80 [ 49.933246][ T412] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.939115][ T412] RIP: 0033:0x7f535f7010a9 [ 49.943547][ T412] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 [ 49.963208][ T412] RSP: 002b:00007ffc46516738 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 49.971588][ T412] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f535f7010a9 [ 49.979623][ T412] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 49.987565][ T412] RBP: 00007ffc46516750 R08: 0000000000000002 R09: 0000000000000001 [ 49.995502][ T412] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 50.003446][ T412] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 50.011564][ T412] kobject_add_internal failed for queue (error: -2 parent: loop0) [ 50.019431][ T412] ------------[ cut here ]------------ [ 50.024868][ T412] WARNING: CPU: 0 PID: 412 at fs/sysfs/file.c:328 sysfs_create_file_ns+0x15a/0x1a0 [ 50.034250][ T412] Modules linked in: [ 50.038173][ T412] CPU: 1 PID: 412 Comm: syz-executor199 Not tainted 5.10.43-syzkaller #0 [ 50.046666][ T412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.056748][ T412] RIP: 0010:sysfs_create_file_ns+0x15a/0x1a0 [ 50.062758][ T412] Code: 03 00 00 00 00 c7 43 08 00 00 00 00 48 8b 5d d0 65 48 2b 1c 25 28 00 00 00 75 22 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 <0f> 0b b8 ea ff ff ff eb be e8 98 ce d9 ff e9 7a ff ff ff e8 3e 5f [ 50.082408][ T412] RSP: 0018:ffffc9000053fba8 EFLAGS: 00010246 [ 50.088567][ T412] RAX: 0000000000000000 RBX: 1ffff920000a7f77 RCX: dffffc0000000000 [ 50.096617][ T412] RDX: 1ffff11021460413 RSI: ffffffff84df82a0 RDI: ffff88810a302068 [ 50.104587][ T412] RBP: ffffc9000053fc60 R08: 0000000000000001 R09: ffff88810139ceeb [ 50.112566][ T412] R10: ffffed10202739dd R11: 5f7463656a626f6b R12: ffff88810a302068 [ 50.120540][ T412] R13: ffffffff84df82a0 R14: ffffc9000053fc38 R15: ffff88810a302098 [ 50.128541][ T412] FS: 0000555556c5c300(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 50.137447][ T412] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.144085][ T412] CR2: 00007f535f7309e0 CR3: 0000000117923000 CR4: 00000000003506b0 [ 50.152088][ T412] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.160090][ T412] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.168086][ T412] Call Trace: [ 50.171438][ T412] ? kset_create_and_add+0x170/0x170 [ 50.176709][ T412] ? sysfs_add_file_mode_ns+0x430/0x430 [ 50.182319][ T412] ? __kasan_check_write+0x14/0x20 [ 50.187397][ T412] ? mutex_lock+0x79/0xd0 [ 50.191778][ T412] ? __mutex_lock_slowpath+0x10/0x10 [ 50.197034][ T412] sysfs_create_files+0x5c/0x1a0 [ 50.202034][ T412] ? __kasan_check_write+0x14/0x20 [ 50.207118][ T412] ? kobject_get+0x55/0xe0 [ 50.212287][ T412] __device_add_disk+0x798/0xfe0 [ 50.217196][ T412] ? blk_alloc_devt+0x2d0/0x2d0 [ 50.222095][ T412] ? sprintf+0xae/0xe0 [ 50.226137][ T412] ? pm_runtime_init+0x2e7/0x380 [ 50.231117][ T412] ? device_initialize+0x1f3/0x430 [ 50.236198][ T412] device_add_disk+0xe/0x10 [ 50.240701][ T412] loop_add+0x5a3/0x7a0 [ 50.244857][ T412] loop_control_ioctl+0x13a/0x3d0 [ 50.249880][ T412] ? loop_lookup+0x1a0/0x1a0 [ 50.254463][ T412] ? ksys_write+0x111/0x210 [ 50.258994][ T412] __x64_sys_ioctl+0x129/0x1a0 [ 50.263755][ T412] do_syscall_64+0x32/0x80 [ 50.268177][ T412] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.274059][ T412] RIP: 0033:0x7f535f7010a9 [ 50.278475][ T412] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 [ 50.298129][ T412] RSP: 002b:00007ffc46516738 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 50.306532][ T412] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f535f7010a9 [ 50.314507][ T412] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 50.322493][ T412] RBP: 00007ffc46516750 R08: 0000000000000002 R09: 0000000000000001 [ 50.330479][ T412] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 50.338487][ T412] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 50.346456][ T412] ---[ end trace 24ac1218322fb72f ]--- [ 50.351912][ T412] ------------[ cut here ]------------ [ 50.357366][ T412] kernfs: can not remove 'events', no directory [ 50.363652][ T412] WARNING: CPU: 1 PID: 412 at fs/kernfs/dir.c:1507 kernfs_remove_by_name_ns+0x74/0x80 [ 50.373196][ T412] Modules linked in: [ 50.377078][ T412] CPU: 1 PID: 412 Comm: syz-executor199 Tainted: G W 5.10.43-syzkaller #0 [ 50.386872][ T412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.396949][ T412] RIP: 0010:kernfs_remove_by_name_ns+0x74/0x80 [ 50.403103][ T412] Code: 02 31 c0 41 5c 41 5d 41 5e 5d c3 48 c7 c7 20 ea c7 85 e8 bf 35 70 02 b8 fe ff ff ff eb e5 48 c7 c7 00 d3 cb 84 e8 c4 89 60 02 <0f> 0b b8 fe ff ff ff eb d0 0f 1f 00 48 b8 00 00 00 00 00 fc ff df [ 50.422719][ T412] RSP: 0018:ffffc9000053fc48 EFLAGS: 00010286 [ 50.428791][ T412] RAX: 0000000000000000 RBX: ffffffff85e3bd38 RCX: 0000000000000000 [ 50.436755][ T412] RDX: 0000000000000001 RSI: 0000000000000008 RDI: fffff520000a7f7b [ 50.444731][ T412] RBP: ffffc9000053fc60 R08: 0000000000000000 R09: ffffc9000053f857 [ 50.452715][ T412] R10: fffff520000a7f0a R11: 203a73666e72656b R12: ffff88810a302068 [ 50.460688][ T412] R13: ffffffff84df8260 R14: ffffed1021460413 R15: ffffffff85e3bd38 [ 50.468664][ T412] FS: 0000555556c5c300(0000) GS:ffff8881f7300000(0000) knlGS:0000000000000000 [ 50.477607][ T412] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.484195][ T412] CR2: 00007ffc46516718 CR3: 0000000117923000 CR4: 00000000003506a0 [ 50.492178][ T412] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.500154][ T412] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.508133][ T412] Call Trace: [ 50.511414][ T412] sysfs_create_files+0x106/0x1a0 [ 50.516419][ T412] ? __kasan_check_write+0x14/0x20 [ 50.521560][ T412] __device_add_disk+0x798/0xfe0 [ 50.526491][ T412] ? blk_alloc_devt+0x2d0/0x2d0 [ 50.531342][ T412] ? sprintf+0xae/0xe0 [ 50.535400][ T412] ? pm_runtime_init+0x2e7/0x380 [ 50.540336][ T412] ? device_initialize+0x1f3/0x430 [ 50.545438][ T412] device_add_disk+0xe/0x10 [ 50.549936][ T412] loop_add+0x5a3/0x7a0 [ 50.554118][ T412] loop_control_ioctl+0x13a/0x3d0 [ 50.559144][ T412] ? loop_lookup+0x1a0/0x1a0 [ 50.563759][ T412] ? ksys_write+0x111/0x210 [ 50.568275][ T412] __x64_sys_ioctl+0x129/0x1a0 [ 50.573034][ T412] do_syscall_64+0x32/0x80 [ 50.577433][ T412] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.583321][ T412] RIP: 0033:0x7f535f7010a9 [ 50.587745][ T412] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 [ 50.607388][ T412] RSP: 002b:00007ffc46516738 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 50.615796][ T412] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f535f7010a9 [ 50.623767][ T412] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 50.631750][ T412] RBP: 00007ffc46516750 R08: 0000000000000002 R09: 0000000000000001 [ 50.639724][ T412] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 50.647753][ T412] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 50.655708][ T412] ---[ end trace 24ac1218322fb730 ]--- [ 50.661224][ T412] loop0: failed to create sysfs files for events [ 50.667555][ T412] ------------[ cut here ]------------ [ 50.673064][ T412] kernfs: can not remove 'events', no directory [ 50.679385][ T412] WARNING: CPU: 0 PID: 412 at fs/kernfs/dir.c:1507 kernfs_remove_by_name_ns+0x74/0x80 [ 50.688947][ T412] Modules linked in: [ 50.692814][ T412] CPU: 0 PID: 412 Comm: syz-executor199 Tainted: G W 5.10.43-syzkaller #0 [ 50.702648][ T412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.712857][ T412] RIP: 0010:kernfs_remove_by_name_ns+0x74/0x80 [ 50.719048][ T412] Code: 02 31 c0 41 5c 41 5d 41 5e 5d c3 48 c7 c7 20 ea c7 85 e8 bf 35 70 02 b8 fe ff ff ff eb e5 48 c7 c7 00 d3 cb 84 e8 c4 89 60 02 <0f> 0b b8 fe ff ff ff eb d0 0f 1f 00 48 b8 00 00 00 00 00 fc ff df [ 50.738716][ T412] RSP: 0018:ffffc9000053fcf0 EFLAGS: 00010282 [ 50.744757][ T412] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 50.752786][ T412] RDX: 0000000000000001 RSI: ffffffff85587760 RDI: fffff520000a7f90 [ 50.760787][ T412] RBP: ffffc9000053fd08 R08: 0000000000000001 R09: ffff8881f724b067 [ 50.768788][ T412] R10: ffffed103ee4960c R11: 203a73666e72656b R12: ffffffff85e3bd40 [ 50.776734][ T412] R13: ffffffff84df8260 R14: ffffed1021460413 R15: 0000000000000001 [ 50.784778][ T412] FS: 0000555556c5c300(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 50.793748][ T412] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.800399][ T412] CR2: 00007f535f7309e0 CR3: 0000000117923000 CR4: 00000000003506b0 [ 50.808527][ T412] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.816584][ T412] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.824609][ T412] Call Trace: [ 50.827938][ T412] sysfs_remove_files+0x82/0x100 [ 50.832846][ T412] del_gendisk+0x1d9/0xa60 [ 50.837231][ T412] ? idr_find+0x3e/0x60 [ 50.841475][ T412] ? disk_events_poll_msecs_store+0x1b0/0x1b0 [ 50.847515][ T412] ? loop_lookup+0x73/0x1a0 [ 50.852071][ T412] ? loop_queue_rq+0x3f0/0x3f0 [ 50.856804][ T412] ? __mutex_lock_killable_slowpath+0x10/0x10 [ 50.862917][ T412] loop_control_ioctl+0x30d/0x3d0 [ 50.867962][ T412] ? loop_lookup+0x1a0/0x1a0 [ 50.872540][ T412] ? __x64_sys_openat+0x124/0x200 [ 50.877564][ T412] __x64_sys_ioctl+0x129/0x1a0 [ 50.882444][ T412] do_syscall_64+0x32/0x80 [ 50.886833][ T412] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 50.892790][ T412] RIP: 0033:0x7f535f7010a9 [ 50.897180][ T412] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 [ 50.916784][ T412] RSP: 002b:00007ffc46516738 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 50.925188][ T412] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f535f7010a9 [ 50.933149][ T412] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000005 [ 50.941103][ T412] RBP: 00007ffc46516750 R08: 0000000000000001 R09: 0000000000000001 [ 50.949082][ T412] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004 [ 50.957055][ T412] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 50.965043][ T412] ---[ end trace 24ac1218322fb731 ]--- [ 50.970500][ T412] ------------[ cut here ]------------ [ 50.975927][ T412] kernfs: can not remove 'events_async', no directory [ 50.982704][ T412] WARNING: CPU: 0 PID: 412 at fs/kernfs/dir.c:1507 kernfs_remove_by_name_ns+0x74/0x80 [ 50.992223][ T412] Modules linked in: [ 50.996090][ T412] CPU: 0 PID: 412 Comm: syz-executor199 Tainted: G W 5.10.43-syzkaller #0 [ 51.005872][ T412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.015920][ T412] RIP: 0010:kernfs_remove_by_name_ns+0x74/0x80 [ 51.022062][ T412] Code: 02 31 c0 41 5c 41 5d 41 5e 5d c3 48 c7 c7 20 ea c7 85 e8 bf 35 70 02 b8 fe ff ff ff eb e5 48 c7 c7 00 d3 cb 84 e8 c4 89 60 02 <0f> 0b b8 fe ff ff ff eb d0 0f 1f 00 48 b8 00 00 00 00 00 fc ff df [ 51.041742][ T412] RSP: 0018:ffffc9000053fcf0 EFLAGS: 00010282 [ 51.047795][ T412] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 51.055746][ T412] RDX: 0000000000000001 RSI: 0000000000000008 RDI: fffff520000a7f90 [ 51.063706][ T412] RBP: ffffc9000053fd08 R08: 0000000000000000 R09: ffffc9000053f8ff [ 51.071666][ T412] R10: fffff520000a7f1f R11: 203a73666e72656b R12: ffffffff85e3bd40 [ 51.079626][ T412] R13: ffffffff84df81e0 R14: ffffed1021460413 R15: 0000000000000002 [ 51.087575][ T412] FS: 0000555556c5c300(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 51.096491][ T412] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.103076][ T412] CR2: 00007f535f7309e0 CR3: 0000000117923000 CR4: 00000000003506b0 [ 51.111037][ T412] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.118994][ T412] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.126933][ T412] Call Trace: [ 51.130209][ T412] sysfs_remove_files+0x82/0x100 [ 51.135136][ T412] del_gendisk+0x1d9/0xa60 [ 51.139549][ T412] ? idr_find+0x3e/0x60 [ 51.143683][ T412] ? disk_events_poll_msecs_store+0x1b0/0x1b0 [ 51.149744][ T412] ? loop_lookup+0x73/0x1a0 [ 51.154221][ T412] ? loop_queue_rq+0x3f0/0x3f0 [ 51.158973][ T412] ? __mutex_lock_killable_slowpath+0x10/0x10 [ 51.165020][ T412] loop_control_ioctl+0x30d/0x3d0 [ 51.170126][ T412] ? loop_lookup+0x1a0/0x1a0 [ 51.174693][ T412] ? __x64_sys_openat+0x124/0x200 [ 51.179709][ T412] __x64_sys_ioctl+0x129/0x1a0 [ 51.184450][ T412] do_syscall_64+0x32/0x80 [ 51.188853][ T412] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.194717][ T412] RIP: 0033:0x7f535f7010a9 [ 51.199123][ T412] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 [ 51.218797][ T412] RSP: 002b:00007ffc46516738 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 51.227183][ T412] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f535f7010a9 [ 51.235158][ T412] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000005 [ 51.243118][ T412] RBP: 00007ffc46516750 R08: 0000000000000001 R09: 0000000000000001 [ 51.251076][ T412] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004 [ 51.259038][ T412] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 51.266981][ T412] ---[ end trace 24ac1218322fb732 ]--- [ 51.272432][ T412] ------------[ cut here ]------------ [ 51.277871][ T412] kernfs: can not remove 'events_poll_msecs', no directory [ 51.285064][ T412] WARNING: CPU: 0 PID: 412 at fs/kernfs/dir.c:1507 kernfs_remove_by_name_ns+0x74/0x80 [ 51.294758][ T412] Modules linked in: [ 51.298644][ T412] CPU: 0 PID: 412 Comm: syz-executor199 Tainted: G W 5.10.43-syzkaller #0 [ 51.308421][ T412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.318468][ T412] RIP: 0010:kernfs_remove_by_name_ns+0x74/0x80 [ 51.324591][ T412] Code: 02 31 c0 41 5c 41 5d 41 5e 5d c3 48 c7 c7 20 ea c7 85 e8 bf 35 70 02 b8 fe ff ff ff eb e5 48 c7 c7 00 d3 cb 84 e8 c4 89 60 02 <0f> 0b b8 fe ff ff ff eb d0 0f 1f 00 48 b8 00 00 00 00 00 fc ff df [ 51.344190][ T412] RSP: 0018:ffffc9000053fcf0 EFLAGS: 00010282 [ 51.350241][ T412] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 51.358199][ T412] RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffff520000a7f90 [ 51.366146][ T412] RBP: ffffc9000053fd08 R08: 0000000000000001 R09: ffff8881f721f54b [ 51.374106][ T412] R10: ffffed103ee43ea9 R11: 203a73666e72656b R12: ffffffff85e3bd40 [ 51.382066][ T412] R13: ffffffff84df8160 R14: ffffed1021460413 R15: 0000000000000003 [ 51.390033][ T412] FS: 0000555556c5c300(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 51.398949][ T412] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.405505][ T412] CR2: 00007f535f7309e0 CR3: 0000000117923000 CR4: 00000000003506b0 [ 51.413466][ T412] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.421420][ T412] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.429376][ T412] Call Trace: [ 51.432645][ T412] sysfs_remove_files+0x82/0x100 [ 51.437553][ T412] del_gendisk+0x1d9/0xa60 [ 51.441957][ T412] ? idr_find+0x3e/0x60 [ 51.446090][ T412] ? disk_events_poll_msecs_store+0x1b0/0x1b0 [ 51.452150][ T412] ? loop_lookup+0x73/0x1a0 [ 51.456627][ T412] ? loop_queue_rq+0x3f0/0x3f0 [ 51.461380][ T412] ? __mutex_lock_killable_slowpath+0x10/0x10 [ 51.467421][ T412] loop_control_ioctl+0x30d/0x3d0 [ 51.472431][ T412] ? loop_lookup+0x1a0/0x1a0 [ 51.477000][ T412] ? __x64_sys_openat+0x124/0x200 [ 51.482020][ T412] __x64_sys_ioctl+0x129/0x1a0 [ 51.486762][ T412] do_syscall_64+0x32/0x80 [ 51.491163][ T412] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.497028][ T412] RIP: 0033:0x7f535f7010a9 [ 51.501429][ T412] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 [ 51.521028][ T412] RSP: 002b:00007ffc46516738 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 51.529424][ T412] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f535f7010a9 [ 51.537376][ T412] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000005 [ 51.545332][ T412] RBP: 00007ffc46516750 R08: 0000000000000001 R09: 0000000000000001 [ 51.553305][ T412] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004 [ 51.561262][ T412] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 51.569219][ T412] ---[ end trace 24ac1218322fb733 ]--- [ 51.574673][ T412] ------------[ cut here ]------------ [ 51.580128][ T412] kernfs: can not remove 'bdi', no directory [ 51.586120][ T412] WARNING: CPU: 0 PID: 412 at fs/kernfs/dir.c:1507 kernfs_remove_by_name_ns+0x74/0x80 [ 51.595647][ T412] Modules linked in: [ 51.599536][ T412] CPU: 0 PID: 412 Comm: syz-executor199 Tainted: G W 5.10.43-syzkaller #0 [ 51.609409][ T412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.619457][ T412] RIP: 0010:kernfs_remove_by_name_ns+0x74/0x80 [ 51.625582][ T412] Code: 02 31 c0 41 5c 41 5d 41 5e 5d c3 48 c7 c7 20 ea c7 85 e8 bf 35 70 02 b8 fe ff ff ff eb e5 48 c7 c7 00 d3 cb 84 e8 c4 89 60 02 <0f> 0b b8 fe ff ff ff eb d0 0f 1f 00 48 b8 00 00 00 00 00 fc ff df [ 51.645187][ T412] RSP: 0018:ffffc9000053fd20 EFLAGS: 00010286 [ 51.651273][ T412] RAX: 0000000000000000 RBX: ffff88810a302068 RCX: 0000000000000000 [ 51.659235][ T412] RDX: 0000000000000001 RSI: ffffffff85587760 RDI: fffff520000a7f96 [ 51.667184][ T412] RBP: ffffc9000053fd38 R08: 0000000000000001 R09: ffff8881f724b067 [ 51.675144][ T412] R10: ffffed103ee4960c R11: 203a73666e72656b R12: ffff88810a302468 [ 51.683098][ T412] R13: ffffffff84df7c40 R14: ffffc9000053fe10 R15: 0000000000000000 [ 51.691057][ T412] FS: 0000555556c5c300(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 51.699975][ T412] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.706530][ T412] CR2: 00007f535f7309e0 CR3: 0000000117923000 CR4: 00000000003506b0 [ 51.714519][ T412] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.722487][ T412] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.730465][ T412] Call Trace: [ 51.733735][ T412] sysfs_remove_link+0x37/0xa0 [ 51.738505][ T412] del_gendisk+0x74b/0xa60 [ 51.742902][ T412] ? disk_events_poll_msecs_store+0x1b0/0x1b0 [ 51.748955][ T412] ? loop_lookup+0x73/0x1a0 [ 51.753437][ T412] ? loop_queue_rq+0x3f0/0x3f0 [ 51.758191][ T412] ? __mutex_lock_killable_slowpath+0x10/0x10 [ 51.764238][ T412] loop_control_ioctl+0x30d/0x3d0 [ 51.769249][ T412] ? loop_lookup+0x1a0/0x1a0 [ 51.773877][ T412] ? __x64_sys_openat+0x124/0x200 [ 51.778897][ T412] __x64_sys_ioctl+0x129/0x1a0 [ 51.783641][ T412] do_syscall_64+0x32/0x80 [ 51.788099][ T412] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 51.793974][ T412] RIP: 0033:0x7f535f7010a9 [ 51.798378][ T412] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 [ 51.817972][ T412] RSP: 002b:00007ffc46516738 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 51.826349][ T412] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f535f7010a9 [ 51.834334][ T412] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000005 [ 51.842290][ T412] RBP: 00007ffc46516750 R08: 0000000000000001 R09: 0000000000000001 [ 51.850246][ T412] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004 [ 51.858202][ T412] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 51.866152][ T412] ---[ end trace 24ac1218322fb734 ]--- [ 51.871859][ T412] general protection fault, probably for non-canonical address 0xdffffc000000001a: 0000 [#1] PREEMPT SMP KASAN [ 51.883555][ T412] KASAN: null-ptr-deref in range [0x00000000000000d0-0x00000000000000d7] [ 51.892003][ T412] CPU: 0 PID: 412 Comm: syz-executor199 Tainted: G W 5.10.43-syzkaller #0 [ 51.901779][ T412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.911869][ T412] RIP: 0010:device_del+0xe3/0xd00 [ 51.916866][ T412] Code: c1 ea 03 80 3c 02 00 0f 85 c5 0a 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 68 49 8d bc 24 d0 00 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 06 0f 8e a6 09 00 00 41 0f b6 84 24 d0 00 00 [ 51.936559][ T412] RSP: 0018:ffffc9000053fca0 EFLAGS: 00010202 [ 51.942596][ T412] RAX: dffffc0000000000 RBX: ffff88810a302068 RCX: ffffffff84262aa9 [ 51.950541][ T412] RDX: 000000000000001a RSI: 0000000000000008 RDI: 00000000000000d0 [ 51.958498][ T412] RBP: ffffc9000053fd58 R08: 0000000000000001 R09: ffffc9000053fc3f [ 51.966446][ T412] R10: fffff520000a7f87 R11: 0000000000000000 R12: 0000000000000000 [ 51.974392][ T412] R13: ffff88810a302108 R14: fffffbfff0cdf1c8 R15: 0000000000000008 [ 51.982334][ T412] FS: 0000555556c5c300(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 51.991235][ T412] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.997791][ T412] CR2: 00007f535f7309e0 CR3: 0000000117923000 CR4: 00000000003506b0 [ 52.005757][ T412] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.013699][ T412] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.021664][ T412] Call Trace: [ 52.024924][ T412] ? _raw_spin_lock+0x120/0x120 [ 52.029744][ T412] ? __device_links_supplier_defer_sync+0x1f0/0x1f0 [ 52.036299][ T412] ? __kasan_check_write+0x14/0x20 [ 52.041380][ T412] ? mutex_unlock+0x14/0x40 [ 52.045876][ T412] ? pm_runtime_set_memalloc_noio+0xdf/0x100 [ 52.051821][ T412] del_gendisk+0x611/0xa60 [ 52.056286][ T412] ? disk_events_poll_msecs_store+0x1b0/0x1b0 [ 52.062325][ T412] ? loop_lookup+0x73/0x1a0 [ 52.066807][ T412] ? loop_queue_rq+0x3f0/0x3f0 [ 52.071540][ T412] ? __mutex_lock_killable_slowpath+0x10/0x10 [ 52.077573][ T412] loop_control_ioctl+0x30d/0x3d0 [ 52.082567][ T412] ? loop_lookup+0x1a0/0x1a0 [ 52.087126][ T412] ? __x64_sys_openat+0x124/0x200 [ 52.092121][ T412] __x64_sys_ioctl+0x129/0x1a0 [ 52.096857][ T412] do_syscall_64+0x32/0x80 [ 52.101246][ T412] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.107111][ T412] RIP: 0033:0x7f535f7010a9 [ 52.111498][ T412] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48 [ 52.131084][ T412] RSP: 002b:00007ffc46516738 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 52.139469][ T412] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f535f7010a9 [ 52.147413][ T412] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000005 [ 52.155356][ T412] RBP: 00007ffc46516750 R08: 0000000000000001 R09: 0000000000000001 [ 52.163306][ T412] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004 [ 52.171254][ T412] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 52.179199][ T412] Modules linked in: [ 52.183164][ T412] ---[ end trace 24ac1218322fb735 ]--- [ 52.188647][ T412] RIP: 0010:device_del+0xe3/0xd00 [ 52.193668][ T412] Code: c1 ea 03 80 3c 02 00 0f 85 c5 0a 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 68 49 8d bc 24 d0 00 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 06 0f 8e a6 09 00 00 41 0f b6 84 24 d0 00 00 [ 52.213298][ T412] RSP: 0018:ffffc9000053fca0 EFLAGS: 00010202 [ 52.219392][ T412] RAX: dffffc0000000000 RBX: ffff88810a302068 RCX: ffffffff84262aa9 [ 52.227356][ T412] RDX: 000000000000001a RSI: 0000000000000008 RDI: 00000000000000d0 [ 52.235361][ T412] RBP: ffffc9000053fd58 R08: 0000000000000001 R09: ffffc9000053fc3f [ 52.243488][ T412] R10: fffff520000a7f87 R11: 0000000000000000 R12: 0000000000000000 [ 52.251483][ T412] R13: ffff88810a302108 R14: fffffbfff0cdf1c8 R15: 0000000000000008 [ 52.259477][ T412] FS: 0000555556c5c300(0000) GS:ffff8881f7200000(0000) knlGS:0000000000000000 [ 52.268422][ T412] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.275006][ T412] CR2: 00007f535f7309e0 CR3: 0000000117923000 CR4: 00000000003506b0 [ 52.282988][ T412] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.290979][ T412] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.298963][ T412] Kernel panic - not syncing: Fatal exception [ 52.305164][ T412] Kernel Offset: disabled [ 52.309464][ T412] Rebooting in 86400 seconds..