syzkaller login: [ 18.685778][ T22] audit: type=1400 audit(1635106681.949:71): avc: denied { transition } for pid=286 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 18.690538][ T22] audit: type=1400 audit(1635106681.949:72): avc: denied { write } for pid=286 comm="sh" path="pipe:[10605]" dev="pipefs" ino=10605 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 Warning: Permanently added '10.128.0.157' (ECDSA) to the list of known hosts. executing program [ 25.566008][ T22] audit: type=1400 audit(1635106688.829:73): avc: denied { execmem } for pid=298 comm="syz-executor589" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 25.588387][ T22] audit: type=1400 audit(1635106688.829:74): avc: denied { read } for pid=299 comm="syz-executor589" name="loop-control" dev="devtmpfs" ino=9357 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [ 25.614048][ T22] audit: type=1400 audit(1635106688.829:75): avc: denied { open } for pid=299 comm="syz-executor589" path="/dev/loop-control" dev="devtmpfs" ino=9357 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [ 25.638989][ T22] audit: type=1400 audit(1635106688.829:76): avc: denied { ioctl } for pid=299 comm="syz-executor589" path="/dev/loop-control" dev="devtmpfs" ino=9357 ioctlcmd=0x4c81 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [ 25.683121][ T299] FAULT_INJECTION: forcing a failure. [ 25.683121][ T299] name failslab, interval 1, probability 0, space 0, times 1 [ 25.696690][ T299] CPU: 0 PID: 299 Comm: syz-executor589 Not tainted 5.4.147-syzkaller-00036-geb4a5a5dbd5b #0 [ 25.706824][ T299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.716849][ T299] Call Trace: [ 25.720111][ T299] dump_stack+0x18e/0x1de [ 25.724409][ T299] should_fail+0x5d8/0x740 [ 25.728796][ T299] ? new_inode_pseudo+0x79/0x220 [ 25.733706][ T299] should_failslab+0x5/0x20 [ 25.738198][ T299] kmem_cache_alloc+0x36/0x290 [ 25.742932][ T299] new_inode_pseudo+0x79/0x220 [ 25.747661][ T299] new_inode+0x25/0x1d0 [ 25.751789][ T299] ? start_creating+0x183/0x270 [ 25.756629][ T299] __debugfs_create_file+0xb5/0x460 [ 25.761793][ T299] ? debugfs_create_dir+0x302/0x3f0 [ 25.766976][ T299] bdi_register_va+0x274/0x5e0 [ 25.771708][ T299] bdi_register+0x80/0xa0 [ 25.776018][ T299] ? __device_add_disk+0x50a/0x1220 [ 25.781199][ T299] bdi_register_owner+0x56/0xf0 [ 25.786028][ T299] __device_add_disk+0x583/0x1220 [ 25.791035][ T299] loop_add+0x554/0x710 [ 25.795171][ T299] loop_control_ioctl+0x468/0x680 [ 25.800175][ T299] ? xor_init+0x60/0x60 [ 25.804301][ T299] do_vfs_ioctl+0x6fb/0x15b0 [ 25.808868][ T299] __x64_sys_ioctl+0xd4/0x110 [ 25.813526][ T299] do_syscall_64+0xcb/0x1e0 [ 25.818001][ T299] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 25.823862][ T299] RIP: 0033:0x7fab84a13079 [ 25.828249][ T299] 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 [ 25.847907][ T299] RSP: 002b:00007ffe63dd2058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 25.856285][ T299] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fab84a13079 [ 25.864224][ T299] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 25.872164][ T299] RBP: 00007ffe63dd2070 R08: 0000000000000002 R09: 0000000000000001 executing program executing program [ 25.880101][ T299] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 25.888040][ T299] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 25.896115][ T299] debugfs: out of free dentries, can not create file 'stats' [ 25.943342][ T303] FAULT_INJECTION: forcing a failure. [ 25.943342][ T303] name failslab, interval 1, probability 0, space 0, times 0 [ 25.956158][ T303] CPU: 0 PID: 303 Comm: syz-executor589 Not tainted 5.4.147-syzkaller-00036-geb4a5a5dbd5b #0 [ 25.966297][ T303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.976323][ T303] Call Trace: [ 25.979589][ T303] dump_stack+0x18e/0x1de [ 25.983892][ T303] should_fail+0x5d8/0x740 [ 25.988282][ T303] ? device_add+0xcb/0x1820 [ 25.992773][ T303] should_failslab+0x5/0x20 [ 25.997246][ T303] kmem_cache_alloc_trace+0x39/0x2b0 [ 26.002498][ T303] device_add+0xcb/0x1820 [ 26.006818][ T303] ? dev_set_name+0x80/0xa0 [ 26.011309][ T303] ? kobj_map+0x61e/0x650 [ 26.015958][ T303] __device_add_disk+0x71a/0x1220 [ 26.020959][ T303] loop_add+0x554/0x710 [ 26.025086][ T303] loop_control_ioctl+0x468/0x680 [ 26.030078][ T303] ? xor_init+0x60/0x60 [ 26.034201][ T303] do_vfs_ioctl+0x6fb/0x15b0 [ 26.038760][ T303] __x64_sys_ioctl+0xd4/0x110 [ 26.043410][ T303] do_syscall_64+0xcb/0x1e0 [ 26.047884][ T303] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 26.053744][ T303] RIP: 0033:0x7fab84a13079 [ 26.058129][ T303] 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 [ 26.077748][ T303] RSP: 002b:00007ffe63dd2058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 26.086126][ T303] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fab84a13079 [ 26.094083][ T303] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 26.102037][ T303] RBP: 00007ffe63dd2070 R08: 0000000000000002 R09: 0000000000000001 [ 26.110242][ T303] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 26.118189][ T303] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 26.126222][ T303] kobject_add_internal failed for queue (error: -2 parent: loop0) [ 26.134059][ T303] ------------[ cut here ]------------ [ 26.139582][ T303] WARNING: CPU: 0 PID: 303 at fs/sysfs/file.c:328 sysfs_create_files+0x1ef/0x380 [ 26.148653][ T303] Modules linked in: [ 26.152537][ T303] CPU: 0 PID: 303 Comm: syz-executor589 Not tainted 5.4.147-syzkaller-00036-geb4a5a5dbd5b #0 [ 26.162656][ T303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.172686][ T303] RIP: 0010:sysfs_create_files+0x1ef/0x380 [ 26.178465][ T303] Code: 85 ed 0f 84 a4 00 00 00 e8 be 96 ae ff 89 eb 48 8b 6c 24 10 4c 8b 7c 24 28 e9 ad fe ff ff e8 a8 96 ae ff eb 05 e8 a1 96 ae ff <0f> 0b 41 bc ea ff ff ff eb 8d 3c 03 0f 8f a1 fe ff ff 48 8d 7c 24 [ 26.198042][ T303] RSP: 0018:ffff8881de34fc68 EFLAGS: 00010293 [ 26.204080][ T303] RAX: ffffffff81b238bf RBX: 0000000000000000 RCX: ffff8881de20cec0 [ 26.212022][ T303] RDX: 0000000000000000 RSI: ffffffff85e46960 RDI: ffff8881f0560070 [ 26.219965][ T303] RBP: ffff8881f05600a0 R08: ffffffff821b288c R09: ffffed103bc69f8b [ 26.227927][ T303] R10: ffffed103bc69f8b R11: 0000000000000000 R12: dffffc0000000000 [ 26.235885][ T303] R13: ffffffff84e296c0 R14: dffffc0000000000 R15: ffff8881f0560070 [ 26.243830][ T303] FS: 0000555556448300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 26.252734][ T303] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.259286][ T303] CR2: 00007fab84a429b0 CR3: 00000001e0102000 CR4: 00000000003406f0 [ 26.267230][ T303] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.275180][ T303] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.283132][ T303] Call Trace: [ 26.286414][ T303] __device_add_disk+0xced/0x1220 [ 26.291415][ T303] loop_add+0x554/0x710 [ 26.295541][ T303] loop_control_ioctl+0x468/0x680 [ 26.300532][ T303] ? xor_init+0x60/0x60 [ 26.305460][ T303] do_vfs_ioctl+0x6fb/0x15b0 [ 26.310029][ T303] __x64_sys_ioctl+0xd4/0x110 [ 26.314690][ T303] do_syscall_64+0xcb/0x1e0 [ 26.319173][ T303] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 26.325124][ T303] RIP: 0033:0x7fab84a13079 [ 26.329509][ T303] 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 [ 26.349203][ T303] RSP: 002b:00007ffe63dd2058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 26.357589][ T303] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fab84a13079 [ 26.365538][ T303] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 26.373488][ T303] RBP: 00007ffe63dd2070 R08: 0000000000000002 R09: 0000000000000001 [ 26.381434][ T303] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 26.389382][ T303] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 26.397329][ T303] ---[ end trace 91a358f4873211c4 ]--- [ 26.402811][ T303] ------------[ cut here ]------------ [ 26.408245][ T303] kernfs: can not remove 'events', no directory [ 26.415057][ T303] WARNING: CPU: 0 PID: 303 at fs/kernfs/dir.c:1504 kernfs_remove_by_name_ns+0x61/0x90 [ 26.424566][ T303] Modules linked in: [ 26.428433][ T303] CPU: 0 PID: 303 Comm: syz-executor589 Tainted: G W 5.4.147-syzkaller-00036-geb4a5a5dbd5b #0 [ 26.439931][ T303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.450009][ T303] RIP: 0010:kernfs_remove_by_name_ns+0x61/0x90 [ 26.456240][ T303] Code: 48 89 c3 e8 61 f2 ae ff 48 89 df e8 b9 f0 ff ff 31 db eb 29 e8 50 f2 ae ff 48 c7 c7 40 c3 cb 84 4c 89 fe 31 c0 e8 1f 79 88 ff <0f> 0b bb fe ff ff ff eb 16 e8 31 f2 ae ff bb fe ff ff ff 48 c7 c7 [ 26.475907][ T303] RSP: 0018:ffff8881de34fc48 EFLAGS: 00010246 [ 26.481943][ T303] RAX: 15eb6ad6e33e2b00 RBX: 0000000000000000 RCX: ffff8881de20cec0 [ 26.490273][ T303] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 26.498383][ T303] RBP: ffffffff84e296c0 R08: ffffffff814b2a4c R09: ffffed103edc9608 [ 26.506326][ T303] R10: ffffed103edc9608 R11: 0000000000000000 R12: 00000000ffffffea [ 26.514283][ T303] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff84e29780 [ 26.522237][ T303] FS: 0000555556448300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 26.531137][ T303] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.537691][ T303] CR2: 00007fab84a429b0 CR3: 00000001e0102000 CR4: 00000000003406f0 [ 26.545670][ T303] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.553617][ T303] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.561618][ T303] Call Trace: [ 26.564892][ T303] sysfs_create_files+0x321/0x380 [ 26.569886][ T303] __device_add_disk+0xced/0x1220 [ 26.574881][ T303] loop_add+0x554/0x710 [ 26.579035][ T303] loop_control_ioctl+0x468/0x680 [ 26.584049][ T303] ? xor_init+0x60/0x60 [ 26.588174][ T303] do_vfs_ioctl+0x6fb/0x15b0 [ 26.592748][ T303] __x64_sys_ioctl+0xd4/0x110 [ 26.597398][ T303] do_syscall_64+0xcb/0x1e0 [ 26.602221][ T303] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 26.608085][ T303] RIP: 0033:0x7fab84a13079 [ 26.612488][ T303] 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 [ 26.632064][ T303] RSP: 002b:00007ffe63dd2058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 executing program [ 26.640472][ T303] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fab84a13079 [ 26.648423][ T303] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 26.656372][ T303] RBP: 00007ffe63dd2070 R08: 0000000000000002 R09: 0000000000000001 [ 26.664450][ T303] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 26.672411][ T303] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 26.680361][ T303] ---[ end trace 91a358f4873211c5 ]--- [ 26.685873][ T303] loop0: failed to create sysfs files for events [ 26.693829][ T304] ------------[ cut here ]------------ [ 26.699305][ T304] kernfs: can not remove 'events', no directory [ 26.705781][ T304] WARNING: CPU: 1 PID: 304 at fs/kernfs/dir.c:1504 kernfs_remove_by_name_ns+0x61/0x90 [ 26.715291][ T304] Modules linked in: [ 26.719162][ T304] CPU: 1 PID: 304 Comm: syz-executor589 Tainted: G W 5.4.147-syzkaller-00036-geb4a5a5dbd5b #0 [ 26.730666][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.740714][ T304] RIP: 0010:kernfs_remove_by_name_ns+0x61/0x90 [ 26.746837][ T304] Code: 48 89 c3 e8 61 f2 ae ff 48 89 df e8 b9 f0 ff ff 31 db eb 29 e8 50 f2 ae ff 48 c7 c7 40 c3 cb 84 4c 89 fe 31 c0 e8 1f 79 88 ff <0f> 0b bb fe ff ff ff eb 16 e8 31 f2 ae ff bb fe ff ff ff 48 c7 c7 [ 26.766411][ T304] RSP: 0018:ffff8881de34fcf8 EFLAGS: 00010246 [ 26.772448][ T304] RAX: d9514407b9569200 RBX: 0000000000000000 RCX: ffff8881de6c3f00 [ 26.780404][ T304] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 26.788345][ T304] RBP: ffffffff85e46960 R08: ffffffff814b2a4c R09: ffffed103ede9608 [ 26.796285][ T304] R10: ffffed103ede9608 R11: 0000000000000000 R12: 0000000000000000 [ 26.804225][ T304] R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff84e29780 [ 26.812165][ T304] FS: 0000555556448300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 26.821072][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.827628][ T304] CR2: 00007fab84a84130 CR3: 00000001e2cab000 CR4: 00000000003406e0 [ 26.835569][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.843511][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.851456][ T304] Call Trace: [ 26.854717][ T304] sysfs_remove_files+0x99/0xf0 [ 26.859553][ T304] del_gendisk+0x259/0xb70 [ 26.863938][ T304] ? radix_tree_delete_item+0x22a/0x320 [ 26.869453][ T304] loop_control_ioctl+0x563/0x680 [ 26.874461][ T304] ? xor_init+0x60/0x60 [ 26.878598][ T304] do_vfs_ioctl+0x6fb/0x15b0 [ 26.883168][ T304] __x64_sys_ioctl+0xd4/0x110 [ 26.887813][ T304] do_syscall_64+0xcb/0x1e0 [ 26.892284][ T304] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 26.898143][ T304] RIP: 0033:0x7fab84a13079 [ 26.902527][ T304] 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 [ 26.922098][ T304] RSP: 002b:00007ffe63dd2058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 26.930481][ T304] RAX: ffffffffffffffda RBX: 0000000000006520 RCX: 00007fab84a13079 [ 26.938421][ T304] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 26.946362][ T304] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 26.954304][ T304] R10: 00007ffe63dd1ad0 R11: 0000000000000246 R12: 00007ffe63dd206c [ 26.962246][ T304] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 26.970196][ T304] ---[ end trace 91a358f4873211c6 ]--- [ 26.975704][ T304] ------------[ cut here ]------------ [ 26.981195][ T304] kernfs: can not remove 'events_async', no directory [ 26.988000][ T304] WARNING: CPU: 1 PID: 304 at fs/kernfs/dir.c:1504 kernfs_remove_by_name_ns+0x61/0x90 [ 26.997504][ T304] Modules linked in: [ 27.001386][ T304] CPU: 1 PID: 304 Comm: syz-executor589 Tainted: G W 5.4.147-syzkaller-00036-geb4a5a5dbd5b #0 [ 27.012888][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.022931][ T304] RIP: 0010:kernfs_remove_by_name_ns+0x61/0x90 [ 27.029060][ T304] Code: 48 89 c3 e8 61 f2 ae ff 48 89 df e8 b9 f0 ff ff 31 db eb 29 e8 50 f2 ae ff 48 c7 c7 40 c3 cb 84 4c 89 fe 31 c0 e8 1f 79 88 ff <0f> 0b bb fe ff ff ff eb 16 e8 31 f2 ae ff bb fe ff ff ff 48 c7 c7 [ 27.048642][ T304] RSP: 0018:ffff8881de34fcf8 EFLAGS: 00010246 [ 27.054680][ T304] RAX: d9514407b9569200 RBX: 0000000000000000 RCX: ffff8881de6c3f00 [ 27.062639][ T304] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 27.070596][ T304] RBP: ffffffff85e46960 R08: ffffffff814b2a4c R09: ffffed103ede3eb2 [ 27.078557][ T304] R10: ffffed103ede3eb2 R11: 0000000000000000 R12: 0000000000000000 [ 27.086495][ T304] R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff84e298c0 [ 27.094438][ T304] FS: 0000555556448300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 27.103333][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.109973][ T304] CR2: 00007fab84a84130 CR3: 00000001e2cab000 CR4: 00000000003406e0 [ 27.117921][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.125864][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.133818][ T304] Call Trace: [ 27.137102][ T304] sysfs_remove_files+0x99/0xf0 [ 27.141936][ T304] del_gendisk+0x259/0xb70 [ 27.146319][ T304] ? radix_tree_delete_item+0x22a/0x320 [ 27.151856][ T304] loop_control_ioctl+0x563/0x680 [ 27.156858][ T304] ? xor_init+0x60/0x60 [ 27.161004][ T304] do_vfs_ioctl+0x6fb/0x15b0 [ 27.165582][ T304] __x64_sys_ioctl+0xd4/0x110 [ 27.170234][ T304] do_syscall_64+0xcb/0x1e0 [ 27.174710][ T304] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 27.180674][ T304] RIP: 0033:0x7fab84a13079 [ 27.185058][ T304] 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 [ 27.204723][ T304] RSP: 002b:00007ffe63dd2058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 27.213099][ T304] RAX: ffffffffffffffda RBX: 0000000000006520 RCX: 00007fab84a13079 [ 27.221126][ T304] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 27.229065][ T304] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 27.237006][ T304] R10: 00007ffe63dd1ad0 R11: 0000000000000246 R12: 00007ffe63dd206c [ 27.244954][ T304] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 27.253019][ T304] ---[ end trace 91a358f4873211c7 ]--- [ 27.258532][ T304] ------------[ cut here ]------------ [ 27.264117][ T304] kernfs: can not remove 'events_poll_msecs', no directory [ 27.271370][ T304] WARNING: CPU: 1 PID: 304 at fs/kernfs/dir.c:1504 kernfs_remove_by_name_ns+0x61/0x90 [ 27.280935][ T304] Modules linked in: [ 27.284809][ T304] CPU: 1 PID: 304 Comm: syz-executor589 Tainted: G W 5.4.147-syzkaller-00036-geb4a5a5dbd5b #0 [ 27.296308][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.306470][ T304] RIP: 0010:kernfs_remove_by_name_ns+0x61/0x90 [ 27.312592][ T304] Code: 48 89 c3 e8 61 f2 ae ff 48 89 df e8 b9 f0 ff ff 31 db eb 29 e8 50 f2 ae ff 48 c7 c7 40 c3 cb 84 4c 89 fe 31 c0 e8 1f 79 88 ff <0f> 0b bb fe ff ff ff eb 16 e8 31 f2 ae ff bb fe ff ff ff 48 c7 c7 [ 27.332167][ T304] RSP: 0018:ffff8881de34fcf8 EFLAGS: 00010246 [ 27.338210][ T304] RAX: d9514407b9569200 RBX: 0000000000000000 RCX: ffff8881de6c3f00 [ 27.346156][ T304] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 27.354112][ T304] RBP: ffffffff85e46960 R08: ffffffff814b2a4c R09: ffffed103bc69f5b [ 27.362053][ T304] R10: ffffed103bc69f5b R11: 0000000000000000 R12: 0000000000000000 [ 27.370004][ T304] R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff84e29900 [ 27.377956][ T304] FS: 0000555556448300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 27.386858][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.393428][ T304] CR2: 00007fab84a84130 CR3: 00000001e2cab000 CR4: 00000000003406e0 [ 27.401408][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.409385][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.417325][ T304] Call Trace: [ 27.420677][ T304] sysfs_remove_files+0x99/0xf0 [ 27.425498][ T304] del_gendisk+0x259/0xb70 [ 27.429883][ T304] ? radix_tree_delete_item+0x22a/0x320 [ 27.435396][ T304] loop_control_ioctl+0x563/0x680 [ 27.440386][ T304] ? xor_init+0x60/0x60 [ 27.444538][ T304] do_vfs_ioctl+0x6fb/0x15b0 [ 27.449099][ T304] __x64_sys_ioctl+0xd4/0x110 [ 27.453787][ T304] do_syscall_64+0xcb/0x1e0 [ 27.458285][ T304] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 27.464150][ T304] RIP: 0033:0x7fab84a13079 [ 27.468565][ T304] 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 [ 27.488162][ T304] RSP: 002b:00007ffe63dd2058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 27.496545][ T304] RAX: ffffffffffffffda RBX: 0000000000006520 RCX: 00007fab84a13079 [ 27.504489][ T304] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 27.512432][ T304] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 27.520377][ T304] R10: 00007ffe63dd1ad0 R11: 0000000000000246 R12: 00007ffe63dd206c [ 27.528405][ T304] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 27.536350][ T304] ---[ end trace 91a358f4873211c8 ]--- [ 27.542084][ T304] ------------[ cut here ]------------ [ 27.547529][ T304] kernfs: can not remove 'bdi', no directory [ 27.553585][ T304] WARNING: CPU: 1 PID: 304 at fs/kernfs/dir.c:1504 kernfs_remove_by_name_ns+0x61/0x90 [ 27.563096][ T304] Modules linked in: [ 27.566983][ T304] CPU: 1 PID: 304 Comm: syz-executor589 Tainted: G W 5.4.147-syzkaller-00036-geb4a5a5dbd5b #0 [ 27.578588][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.588627][ T304] RIP: 0010:kernfs_remove_by_name_ns+0x61/0x90 [ 27.594750][ T304] Code: 48 89 c3 e8 61 f2 ae ff 48 89 df e8 b9 f0 ff ff 31 db eb 29 e8 50 f2 ae ff 48 c7 c7 40 c3 cb 84 4c 89 fe 31 c0 e8 1f 79 88 ff <0f> 0b bb fe ff ff ff eb 16 e8 31 f2 ae ff bb fe ff ff ff 48 c7 c7 [ 27.614412][ T304] RSP: 0018:ffff8881de34fd38 EFLAGS: 00010246 [ 27.620452][ T304] RAX: d9514407b9569200 RBX: 0000000000000000 RCX: ffff8881de6c3f00 [ 27.628430][ T304] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 27.636376][ T304] RBP: 0000000000000000 R08: ffffffff814b2a4c R09: ffffed103bc69f63 [ 27.644320][ T304] R10: ffffed103bc69f63 R11: 0000000000000000 R12: 1ffff1103e0ac000 [ 27.652262][ T304] R13: ffff8881f05604e8 R14: 0000000000000000 R15: ffffffff84e291a0 [ 27.660202][ T304] FS: 0000555556448300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 27.669100][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.675658][ T304] CR2: 00007fab84a84130 CR3: 00000001e2cab000 CR4: 00000000003406e0 [ 27.683607][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.691554][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.699500][ T304] Call Trace: [ 27.702768][ T304] del_gendisk+0x543/0xb70 [ 27.707157][ T304] loop_control_ioctl+0x563/0x680 [ 27.712149][ T304] ? xor_init+0x60/0x60 [ 27.716274][ T304] do_vfs_ioctl+0x6fb/0x15b0 [ 27.720833][ T304] __x64_sys_ioctl+0xd4/0x110 [ 27.725480][ T304] do_syscall_64+0xcb/0x1e0 [ 27.729950][ T304] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 27.735811][ T304] RIP: 0033:0x7fab84a13079 [ 27.740196][ T304] 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 [ 27.759945][ T304] RSP: 002b:00007ffe63dd2058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 27.768338][ T304] RAX: ffffffffffffffda RBX: 0000000000006520 RCX: 00007fab84a13079 [ 27.776288][ T304] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 27.784230][ T304] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 27.792171][ T304] R10: 00007ffe63dd1ad0 R11: 0000000000000246 R12: 00007ffe63dd206c [ 27.800109][ T304] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 27.808051][ T304] ---[ end trace 91a358f4873211c9 ]--- [ 27.814579][ T304] stack segment: 0000 [#1] PREEMPT SMP KASAN [ 27.820555][ T304] CPU: 1 PID: 304 Comm: syz-executor589 Tainted: G W 5.4.147-syzkaller-00036-geb4a5a5dbd5b #0 [ 27.832057][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.842088][ T304] RIP: 0010:device_del+0xa3/0xf60 [ 27.847095][ T304] Code: 00 74 08 4c 89 e7 e8 cc 75 0e ff 48 89 1c 24 41 bf c8 00 00 00 4d 03 3c 24 4c 89 fd 48 c1 ed 03 48 b8 00 00 00 00 00 fc ff df <8a> 44 05 00 84 c0 0f 85 33 0e 00 00 45 0f b6 2f 44 89 eb 83 e3 01 [ 27.866675][ T304] RSP: 0018:ffff8881de34fce0 EFLAGS: 00010202 [ 27.872711][ T304] RAX: dffffc0000000000 RBX: ffff8881f0560070 RCX: 1ffff1103e0ac01b [ 27.880663][ T304] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8881de34fca0 [ 27.888708][ T304] RBP: 0000000000000019 R08: dffffc0000000000 R09: ffffed103bc69f95 [ 27.896823][ T304] R10: ffffed103bc69f95 R11: 0000000000000000 R12: ffff8881f05600d8 [ 27.904762][ T304] R13: 1ffff1103e0ac085 R14: ffff8881f0560110 R15: 00000000000000c8 [ 27.912723][ T304] FS: 0000555556448300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 27.921620][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.928173][ T304] CR2: 00007fab84a84130 CR3: 00000001e2cab000 CR4: 00000000003406e0 [ 27.936120][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.944060][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.952092][ T304] Call Trace: [ 27.955358][ T304] ? pm_runtime_set_memalloc_noio+0x205/0x270 [ 27.961392][ T304] del_gendisk+0x94f/0xb70 [ 27.965868][ T304] loop_control_ioctl+0x563/0x680 [ 27.970871][ T304] ? xor_init+0x60/0x60 [ 27.974995][ T304] do_vfs_ioctl+0x6fb/0x15b0 [ 27.979567][ T304] __x64_sys_ioctl+0xd4/0x110 [ 27.984213][ T304] do_syscall_64+0xcb/0x1e0 [ 27.988684][ T304] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 27.994559][ T304] RIP: 0033:0x7fab84a13079 [ 27.998940][ T304] 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 [ 28.018525][ T304] RSP: 002b:00007ffe63dd2058 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 28.026913][ T304] RAX: ffffffffffffffda RBX: 0000000000006520 RCX: 00007fab84a13079 [ 28.034853][ T304] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 28.042792][ T304] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 28.050750][ T304] R10: 00007ffe63dd1ad0 R11: 0000000000000246 R12: 00007ffe63dd206c [ 28.058690][ T304] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 28.066632][ T304] Modules linked in: [ 28.070583][ T304] ---[ end trace 91a358f4873211ca ]--- [ 28.076098][ T304] RIP: 0010:device_del+0xa3/0xf60 [ 28.081225][ T304] Code: 00 74 08 4c 89 e7 e8 cc 75 0e ff 48 89 1c 24 41 bf c8 00 00 00 4d 03 3c 24 4c 89 fd 48 c1 ed 03 48 b8 00 00 00 00 00 fc ff df <8a> 44 05 00 84 c0 0f 85 33 0e 00 00 45 0f b6 2f 44 89 eb 83 e3 01 [ 28.100988][ T304] RSP: 0018:ffff8881de34fce0 EFLAGS: 00010202 [ 28.107029][ T304] RAX: dffffc0000000000 RBX: ffff8881f0560070 RCX: 1ffff1103e0ac01b [ 28.115001][ T304] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8881de34fca0 [ 28.122964][ T304] RBP: 0000000000000019 R08: dffffc0000000000 R09: ffffed103bc69f95 [ 28.131092][ T304] R10: ffffed103bc69f95 R11: 0000000000000000 R12: ffff8881f05600d8 [ 28.139046][ T304] R13: 1ffff1103e0ac085 R14: ffff8881f0560110 R15: 00000000000000c8 [ 28.147017][ T304] FS: 0000555556448300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 28.156041][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.162624][ T304] CR2: 00007fab84a84130 CR3: 00000001e2cab000 CR4: 00000000003406e0 [ 28.170594][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.178637][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.186611][ T304] Kernel panic - not syncing: Fatal exception [ 28.192703][ T304] Kernel Offset: disabled [ 28.197138][ T304] Rebooting in 86400 seconds..