Starting sshd: OK syzkaller syzkaller login: [ 10.388678][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 10.594511][ T23] kauditd_printk_skb: 60 callbacks suppressed [ 10.594517][ T23] audit: type=1400 audit(1651089223.059:71): avc: denied { transition } for pid=287 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 [ 10.600581][ T23] audit: type=1400 audit(1651089223.069:72): avc: denied { write } for pid=287 comm="sh" path="pipe:[336]" dev="pipefs" ino=336 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 [ 11.268709][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #88!!! Warning: Permanently added '10.128.1.95' (ECDSA) to the list of known hosts. executing program [ 17.692782][ T23] audit: type=1400 audit(1651089230.159:73): avc: denied { execmem } for pid=365 comm="syz-executor387" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 17.696710][ T23] audit: type=1400 audit(1651089230.159:74): avc: denied { read } for pid=366 comm="syz-executor387" name="loop-control" dev="devtmpfs" ino=114 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [ 17.700633][ T23] audit: type=1400 audit(1651089230.159:75): avc: denied { open } for pid=366 comm="syz-executor387" path="/dev/loop-control" dev="devtmpfs" ino=114 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [ 17.704495][ T23] audit: type=1400 audit(1651089230.159:76): avc: denied { ioctl } for pid=366 comm="syz-executor387" path="/dev/loop-control" dev="devtmpfs" ino=114 ioctlcmd=0x4c81 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [ 17.779805][ T366] FAULT_INJECTION: forcing a failure. [ 17.779805][ T366] name failslab, interval 1, probability 0, space 0, times 1 [ 17.792407][ T366] CPU: 1 PID: 366 Comm: syz-executor387 Not tainted 5.10.110-syzkaller-01300-ge08dd85cc95e #0 [ 17.802616][ T366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 17.812657][ T366] Call Trace: [ 17.815934][ T366] dump_stack_lvl+0x1e2/0x24b [ 17.820754][ T366] ? panic+0x7d7/0x7d7 [ 17.824814][ T366] ? bfq_pos_tree_add_move+0x43e/0x43e [ 17.830255][ T366] ? selinux_kernfs_init_security+0x1a8/0x760 [ 17.836302][ T366] dump_stack+0x15/0x17 [ 17.840445][ T366] should_fail+0x3c0/0x510 [ 17.844945][ T366] __should_failslab+0x9f/0xe0 [ 17.849813][ T366] should_failslab+0x9/0x20 [ 17.854306][ T366] kmem_cache_alloc+0x3f/0x300 [ 17.859043][ T366] ? __kernfs_new_node+0xdb/0x6e0 [ 17.864151][ T366] __kernfs_new_node+0xdb/0x6e0 [ 17.868975][ T366] ? mutex_trylock+0xb0/0xb0 [ 17.873541][ T366] ? kernfs_new_node+0x170/0x170 [ 17.878453][ T366] ? __kasan_check_write+0x14/0x20 [ 17.883536][ T366] ? mutex_unlock+0x1d/0x40 [ 17.888016][ T366] ? kernfs_activate+0x409/0x420 [ 17.892934][ T366] kernfs_new_node+0x97/0x170 [ 17.897586][ T366] __kernfs_create_file+0x4a/0x270 [ 17.902764][ T366] sysfs_add_file_mode_ns+0x273/0x320 [ 17.908109][ T366] internal_create_group+0x55e/0xf50 [ 17.913459][ T366] ? sysfs_create_group+0x30/0x30 [ 17.918457][ T366] ? kernfs_put+0x48/0x540 [ 17.922863][ T366] ? kernfs_create_link+0x1a0/0x210 [ 17.928036][ T366] sysfs_create_groups+0x5d/0x130 [ 17.933192][ T366] device_add_attrs+0xd3/0x3e0 [ 17.937934][ T366] ? device_add_class_symlinks+0x27c/0x2a0 [ 17.943717][ T366] device_add+0x4e6/0xbd0 [ 17.948028][ T366] __device_add_disk+0x77d/0x11d0 [ 17.953029][ T366] ? device_add_disk+0x40/0x40 [ 17.957777][ T366] ? vsprintf+0x40/0x40 [ 17.961908][ T366] device_add_disk+0x2a/0x40 [ 17.966560][ T366] loop_add+0x58f/0x760 [ 17.970688][ T366] loop_control_ioctl+0x564/0x740 [ 17.975689][ T366] ? loop_remove+0xb0/0xb0 [ 17.980086][ T366] ? __fdget_pos+0x27e/0x310 [ 17.984648][ T366] ? ksys_write+0x24e/0x2c0 [ 17.989122][ T366] ? security_file_ioctl+0xb1/0xd0 [ 17.994206][ T366] ? loop_remove+0xb0/0xb0 [ 17.998595][ T366] __se_sys_ioctl+0x115/0x190 [ 18.003361][ T366] __x64_sys_ioctl+0x7b/0x90 [ 18.007923][ T366] do_syscall_64+0x34/0x70 [ 18.012313][ T366] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 18.018199][ T366] RIP: 0033:0x7ff234a78079 [ 18.022596][ T366] 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 [ 18.042616][ T366] RSP: 002b:00007ffc8f13e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 18.051004][ T366] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff234a78079 [ 18.058953][ T366] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 18.066899][ T366] RBP: 00007ffc8f13e3a0 R08: 0000000000000002 R09: 0000000000000001 [ 18.074843][ T366] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 18.082785][ T366] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 18.090901][ T366] kobject_add_internal failed for queue (error: -2 parent: loop0) [ 18.098762][ T366] ------------[ cut here ]------------ [ 18.104293][ T366] WARNING: CPU: 1 PID: 366 at fs/sysfs/file.c:328 sysfs_create_files+0x215/0x4a0 [ 18.113408][ T366] Modules linked in: [ 18.117296][ T366] CPU: 1 PID: 366 Comm: syz-executor387 Not tainted 5.10.110-syzkaller-01300-ge08dd85cc95e #0 [ 18.127525][ T366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.137589][ T366] RIP: 0010:sysfs_create_files+0x215/0x4a0 [ 18.143492][ T366] Code: 24 04 48 b9 00 00 00 00 00 fc ff df 48 8b 54 24 08 4c 8b 74 24 20 eb 2b 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 e8 2b fb 9a ff <0f> 0b c7 44 24 04 ea ff ff ff 48 b9 00 00 00 00 00 fc ff df 48 8b [ 18.163110][ T366] RSP: 0018:ffffc9000095fae0 EFLAGS: 00010293 [ 18.169192][ T366] RAX: ffffffff81d1b471 RBX: ffff888119614098 RCX: ffff88811d1d8000 [ 18.177158][ T366] RDX: 0000000000000000 RSI: ffffffff865394a0 RDI: ffff888119614068 [ 18.185312][ T366] RBP: ffffc9000095fbb0 R08: ffffffff826b8088 R09: ffffed1021503d20 [ 18.193302][ T366] R10: ffffed1021503d20 R11: 1ffff11021503d1f R12: 0000000000000000 [ 18.201280][ T366] R13: ffffffff8542fae0 R14: ffff888119614068 R15: ffffffff865394a0 [ 18.209260][ T366] FS: 0000555556e81300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 18.218207][ T366] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.224811][ T366] CR2: 00007ff234aa79b0 CR3: 000000010758a000 CR4: 00000000003506a0 [ 18.232799][ T366] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.240812][ T366] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.248933][ T366] Call Trace: [ 18.252222][ T366] ? sysfs_create_file_ns+0x2a0/0x2a0 [ 18.257585][ T366] ? __kasan_check_write+0x14/0x20 [ 18.262821][ T366] ? kobject_get+0xd2/0x120 [ 18.267342][ T366] __device_add_disk+0x9cb/0x11d0 [ 18.272397][ T366] ? device_add_disk+0x40/0x40 [ 18.277170][ T366] ? vsprintf+0x40/0x40 [ 18.281351][ T366] device_add_disk+0x2a/0x40 [ 18.285949][ T366] loop_add+0x58f/0x760 [ 18.290135][ T366] loop_control_ioctl+0x564/0x740 [ 18.295160][ T366] ? loop_remove+0xb0/0xb0 [ 18.299592][ T366] ? __fdget_pos+0x27e/0x310 [ 18.304186][ T366] ? ksys_write+0x24e/0x2c0 [ 18.308707][ T366] ? security_file_ioctl+0xb1/0xd0 [ 18.313847][ T366] ? loop_remove+0xb0/0xb0 [ 18.318255][ T366] __se_sys_ioctl+0x115/0x190 [ 18.322953][ T366] __x64_sys_ioctl+0x7b/0x90 [ 18.327550][ T366] do_syscall_64+0x34/0x70 [ 18.332085][ T366] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 18.337977][ T366] RIP: 0033:0x7ff234a78079 [ 18.342436][ T366] 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 [ 18.362107][ T366] RSP: 002b:00007ffc8f13e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 18.370633][ T366] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff234a78079 [ 18.378687][ T366] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 18.386724][ T366] RBP: 00007ffc8f13e3a0 R08: 0000000000000002 R09: 0000000000000001 [ 18.394820][ T366] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 18.402898][ T366] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 18.410934][ T366] ---[ end trace 99793c37380c4163 ]--- [ 18.416459][ T366] ------------[ cut here ]------------ [ 18.422095][ T366] kernfs: can not remove 'events', no directory [ 18.428359][ T366] WARNING: CPU: 1 PID: 366 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90 [ 18.437974][ T366] Modules linked in: [ 18.441928][ T366] CPU: 1 PID: 366 Comm: syz-executor387 Tainted: G W 5.10.110-syzkaller-01300-ge08dd85cc95e #0 [ 18.453700][ T366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.463931][ T366] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 18.470099][ T366] Code: 48 89 c3 e8 7d 59 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 6c 59 9b ff 48 c7 c7 80 01 2d 85 4c 89 fe 31 c0 e8 eb 9f 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 4d 59 9b ff bb fe ff ff ff 48 c7 c7 [ 18.489883][ T366] RSP: 0018:ffffc9000095fab8 EFLAGS: 00010246 [ 18.495945][ T366] RAX: f2caf3c1ce08e000 RBX: 0000000000000000 RCX: ffff88811d1d8000 [ 18.503928][ T366] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 18.511924][ T366] RBP: ffffc9000095fad0 R08: ffffffff8153a9a8 R09: ffffed103ee24e83 [ 18.519927][ T366] R10: ffffed103ee24e83 R11: 1ffff1103ee24e82 R12: ffffffff865394a0 [ 18.527899][ T366] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff8542fac0 [ 18.535888][ T366] FS: 0000555556e81300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 18.544945][ T366] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.551530][ T366] CR2: 00007ff234aa79b0 CR3: 000000010758a000 CR4: 00000000003506a0 [ 18.559505][ T366] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.567455][ T366] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.575540][ T366] Call Trace: [ 18.578866][ T366] sysfs_create_files+0x40a/0x4a0 [ 18.583868][ T366] ? sysfs_create_file_ns+0x2a0/0x2a0 [ 18.589251][ T366] ? __kasan_check_write+0x14/0x20 [ 18.594353][ T366] ? kobject_get+0xd2/0x120 [ 18.598859][ T366] __device_add_disk+0x9cb/0x11d0 [ 18.603890][ T366] ? device_add_disk+0x40/0x40 [ 18.608649][ T366] ? vsprintf+0x40/0x40 [ 18.612793][ T366] device_add_disk+0x2a/0x40 [ 18.617354][ T366] loop_add+0x58f/0x760 [ 18.621506][ T366] loop_control_ioctl+0x564/0x740 [ 18.626525][ T366] ? loop_remove+0xb0/0xb0 [ 18.630957][ T366] ? __fdget_pos+0x27e/0x310 [ 18.635539][ T366] ? ksys_write+0x24e/0x2c0 [ 18.640134][ T366] ? security_file_ioctl+0xb1/0xd0 [ 18.645233][ T366] ? loop_remove+0xb0/0xb0 [ 18.649655][ T366] __se_sys_ioctl+0x115/0x190 [ 18.654323][ T366] __x64_sys_ioctl+0x7b/0x90 [ 18.658913][ T366] do_syscall_64+0x34/0x70 [ 18.663319][ T366] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 18.669246][ T366] RIP: 0033:0x7ff234a78079 [ 18.673645][ T366] 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 [ 18.693269][ T366] RSP: 002b:00007ffc8f13e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 18.701695][ T366] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff234a78079 [ 18.709670][ T366] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 18.717627][ T366] RBP: 00007ffc8f13e3a0 R08: 0000000000000002 R09: 0000000000000001 [ 18.725599][ T366] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 executing program [ 18.733743][ T366] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 18.741716][ T366] ---[ end trace 99793c37380c4164 ]--- [ 18.747161][ T366] loop0: failed to create sysfs files for events [ 18.755400][ T369] ------------[ cut here ]------------ [ 18.760961][ T369] kernfs: can not remove 'events', no directory [ 18.767221][ T369] WARNING: CPU: 1 PID: 369 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90 [ 18.776764][ T369] Modules linked in: [ 18.780659][ T369] CPU: 1 PID: 369 Comm: syz-executor387 Tainted: G W 5.10.110-syzkaller-01300-ge08dd85cc95e #0 [ 18.792358][ T369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.802421][ T369] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 18.808584][ T369] Code: 48 89 c3 e8 7d 59 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 6c 59 9b ff 48 c7 c7 80 01 2d 85 4c 89 fe 31 c0 e8 eb 9f 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 4d 59 9b ff bb fe ff ff ff 48 c7 c7 [ 18.828292][ T369] RSP: 0018:ffffc9000097fbf8 EFLAGS: 00010246 [ 18.834360][ T369] RAX: 690ef2d914ad3f00 RBX: 0000000000000000 RCX: ffff88811d1d93c0 [ 18.842328][ T369] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 18.850313][ T369] RBP: ffffc9000097fc10 R08: ffffffff8153a9a8 R09: ffffed103ee24e83 [ 18.858282][ T369] R10: ffffed103ee24e83 R11: 1ffff1103ee24e82 R12: 0000000000000000 [ 18.866261][ T369] R13: ffffffff865394a0 R14: 0000000000000000 R15: ffffffff8542fac0 [ 18.874238][ T369] FS: 0000555556e81300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 18.883170][ T369] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.889765][ T369] CR2: 00007ff234ae9130 CR3: 0000000106bbb000 CR4: 00000000003506a0 [ 18.897722][ T369] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.905706][ T369] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.913672][ T369] Call Trace: [ 18.916938][ T369] sysfs_remove_files+0xab/0x110 [ 18.921873][ T369] del_gendisk+0x278/0xe20 [ 18.926272][ T369] ? device_add_disk_no_queue_reg+0x30/0x30 [ 18.932167][ T369] ? __radix_tree_delete+0x2ba/0x380 [ 18.937442][ T369] ? radix_tree_delete_item+0x261/0x360 [ 18.942985][ T369] loop_remove+0x46/0xb0 [ 18.947219][ T369] loop_control_ioctl+0x67f/0x740 [ 18.952241][ T369] ? __kasan_check_write+0x14/0x20 [ 18.957341][ T369] ? loop_remove+0xb0/0xb0 [ 18.961760][ T369] ? do_user_addr_fault+0x82e/0xcf0 [ 18.967042][ T369] ? security_file_ioctl+0xb1/0xd0 [ 18.972159][ T369] ? loop_remove+0xb0/0xb0 [ 18.976564][ T369] __se_sys_ioctl+0x115/0x190 [ 18.981238][ T369] __x64_sys_ioctl+0x7b/0x90 [ 18.985832][ T369] do_syscall_64+0x34/0x70 [ 18.990259][ T369] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 18.996137][ T369] RIP: 0033:0x7ff234a78079 [ 19.000557][ T369] 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 [ 19.020170][ T369] RSP: 002b:00007ffc8f13e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 19.028597][ T369] RAX: ffffffffffffffda RBX: 0000000000004509 RCX: 00007ff234a78079 [ 19.036558][ T369] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 19.044578][ T369] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 19.052562][ T369] R10: 00007ffc8f13de00 R11: 0000000000000246 R12: 00007ffc8f13e39c [ 19.060540][ T369] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 19.068496][ T369] ---[ end trace 99793c37380c4165 ]--- [ 19.073950][ T369] ------------[ cut here ]------------ [ 19.079397][ T369] kernfs: can not remove 'events_async', no directory [ 19.086172][ T369] WARNING: CPU: 1 PID: 369 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90 [ 19.095725][ T369] Modules linked in: [ 19.099622][ T369] CPU: 1 PID: 369 Comm: syz-executor387 Tainted: G W 5.10.110-syzkaller-01300-ge08dd85cc95e #0 [ 19.111252][ T369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.121323][ T369] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 19.127452][ T369] Code: 48 89 c3 e8 7d 59 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 6c 59 9b ff 48 c7 c7 80 01 2d 85 4c 89 fe 31 c0 e8 eb 9f 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 4d 59 9b ff bb fe ff ff ff 48 c7 c7 [ 19.147079][ T369] RSP: 0018:ffffc9000097fbf8 EFLAGS: 00010246 [ 19.153168][ T369] RAX: 690ef2d914ad3f00 RBX: 0000000000000000 RCX: ffff88811d1d93c0 [ 19.161229][ T369] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 19.169205][ T369] RBP: ffffc9000097fc10 R08: ffffffff8153a9a8 R09: ffffed103ee24e83 [ 19.177156][ T369] R10: ffffed103ee24e83 R11: 1ffff1103ee24e82 R12: 0000000000000000 [ 19.185168][ T369] R13: ffffffff865394a0 R14: 0000000000000000 R15: ffffffff8542fba0 [ 19.193158][ T369] FS: 0000555556e81300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 19.202086][ T369] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.208668][ T369] CR2: 00007ff234ae9130 CR3: 0000000106bbb000 CR4: 00000000003506a0 [ 19.216618][ T369] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.224586][ T369] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.232552][ T369] Call Trace: [ 19.235821][ T369] sysfs_remove_files+0xab/0x110 [ 19.240776][ T369] del_gendisk+0x278/0xe20 [ 19.245289][ T369] ? device_add_disk_no_queue_reg+0x30/0x30 [ 19.251298][ T369] ? __radix_tree_delete+0x2ba/0x380 [ 19.256579][ T369] ? radix_tree_delete_item+0x261/0x360 [ 19.262146][ T369] loop_remove+0x46/0xb0 [ 19.266387][ T369] loop_control_ioctl+0x67f/0x740 [ 19.271425][ T369] ? __kasan_check_write+0x14/0x20 [ 19.276532][ T369] ? loop_remove+0xb0/0xb0 [ 19.280955][ T369] ? do_user_addr_fault+0x82e/0xcf0 [ 19.286149][ T369] ? security_file_ioctl+0xb1/0xd0 [ 19.291399][ T369] ? loop_remove+0xb0/0xb0 [ 19.295815][ T369] __se_sys_ioctl+0x115/0x190 [ 19.300507][ T369] __x64_sys_ioctl+0x7b/0x90 [ 19.305097][ T369] do_syscall_64+0x34/0x70 [ 19.309518][ T369] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.315399][ T369] RIP: 0033:0x7ff234a78079 [ 19.319828][ T369] 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 [ 19.339439][ T369] RSP: 002b:00007ffc8f13e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 19.347916][ T369] RAX: ffffffffffffffda RBX: 0000000000004509 RCX: 00007ff234a78079 [ 19.355986][ T369] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 19.363965][ T369] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 19.371939][ T369] R10: 00007ffc8f13de00 R11: 0000000000000246 R12: 00007ffc8f13e39c [ 19.379908][ T369] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 19.387855][ T369] ---[ end trace 99793c37380c4166 ]--- [ 19.393308][ T369] ------------[ cut here ]------------ [ 19.398754][ T369] kernfs: can not remove 'events_poll_msecs', no directory [ 19.405963][ T369] WARNING: CPU: 1 PID: 369 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90 [ 19.415501][ T369] Modules linked in: [ 19.419416][ T369] CPU: 1 PID: 369 Comm: syz-executor387 Tainted: G W 5.10.110-syzkaller-01300-ge08dd85cc95e #0 [ 19.431024][ T369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.441082][ T369] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 19.447225][ T369] Code: 48 89 c3 e8 7d 59 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 6c 59 9b ff 48 c7 c7 80 01 2d 85 4c 89 fe 31 c0 e8 eb 9f 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 4d 59 9b ff bb fe ff ff ff 48 c7 c7 [ 19.466827][ T369] RSP: 0018:ffffc9000097fbf8 EFLAGS: 00010246 [ 19.472919][ T369] RAX: 690ef2d914ad3f00 RBX: 0000000000000000 RCX: ffff88811d1d93c0 [ 19.480912][ T369] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 19.488882][ T369] RBP: ffffc9000097fc10 R08: ffffffff8153a9a8 R09: ffffed103ee24e83 [ 19.496828][ T369] R10: ffffed103ee24e83 R11: 1ffff1103ee24e82 R12: 0000000000000000 [ 19.504799][ T369] R13: ffffffff865394a0 R14: 0000000000000000 R15: ffffffff8542fc00 [ 19.512767][ T369] FS: 0000555556e81300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 19.521687][ T369] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.528255][ T369] CR2: 00007ff234ae9130 CR3: 0000000106bbb000 CR4: 00000000003506a0 [ 19.536235][ T369] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.544223][ T369] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.552181][ T369] Call Trace: [ 19.555448][ T369] sysfs_remove_files+0xab/0x110 [ 19.560384][ T369] del_gendisk+0x278/0xe20 [ 19.564795][ T369] ? device_add_disk_no_queue_reg+0x30/0x30 [ 19.570695][ T369] ? __radix_tree_delete+0x2ba/0x380 [ 19.575969][ T369] ? radix_tree_delete_item+0x261/0x360 [ 19.581541][ T369] loop_remove+0x46/0xb0 [ 19.585776][ T369] loop_control_ioctl+0x67f/0x740 [ 19.590807][ T369] ? __kasan_check_write+0x14/0x20 [ 19.595905][ T369] ? loop_remove+0xb0/0xb0 [ 19.600318][ T369] ? do_user_addr_fault+0x82e/0xcf0 [ 19.605509][ T369] ? security_file_ioctl+0xb1/0xd0 [ 19.610624][ T369] ? loop_remove+0xb0/0xb0 [ 19.615022][ T369] __se_sys_ioctl+0x115/0x190 [ 19.619694][ T369] __x64_sys_ioctl+0x7b/0x90 [ 19.624273][ T369] do_syscall_64+0x34/0x70 [ 19.628687][ T369] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.634566][ T369] RIP: 0033:0x7ff234a78079 [ 19.638978][ T369] 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 [ 19.658595][ T369] RSP: 002b:00007ffc8f13e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 19.666982][ T369] RAX: ffffffffffffffda RBX: 0000000000004509 RCX: 00007ff234a78079 [ 19.674954][ T369] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 19.683009][ T369] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 19.690988][ T369] R10: 00007ffc8f13de00 R11: 0000000000000246 R12: 00007ffc8f13e39c [ 19.699076][ T369] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 19.707050][ T369] ---[ end trace 99793c37380c4167 ]--- [ 19.712542][ T369] ------------[ cut here ]------------ [ 19.717975][ T369] kernfs: can not remove 'bdi', no directory [ 19.724022][ T369] WARNING: CPU: 1 PID: 369 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90 [ 19.733550][ T369] Modules linked in: [ 19.737425][ T369] CPU: 1 PID: 369 Comm: syz-executor387 Tainted: G W 5.10.110-syzkaller-01300-ge08dd85cc95e #0 [ 19.749053][ T369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.759133][ T369] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 19.765264][ T369] Code: 48 89 c3 e8 7d 59 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 6c 59 9b ff 48 c7 c7 80 01 2d 85 4c 89 fe 31 c0 e8 eb 9f 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 4d 59 9b ff bb fe ff ff ff 48 c7 c7 [ 19.784967][ T369] RSP: 0018:ffffc9000097fc18 EFLAGS: 00010246 [ 19.791083][ T369] RAX: 690ef2d914ad3f00 RBX: 0000000000000000 RCX: ffff88811d1d93c0 [ 19.799325][ T369] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 19.807505][ T369] RBP: ffffc9000097fc30 R08: ffffffff8153a9a8 R09: fffff5200012fea9 [ 19.815509][ T369] R10: fffff5200012fea9 R11: 1ffff9200012fea8 R12: 0000000000000240 [ 19.823489][ T369] R13: ffff888119614030 R14: 0000000000000000 R15: ffffffff8542f4a0 [ 19.831465][ T369] FS: 0000555556e81300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 19.840482][ T369] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.847065][ T369] CR2: 00007ff234ae9130 CR3: 0000000106bbb000 CR4: 00000000003506a0 [ 19.855050][ T369] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.863021][ T369] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.870990][ T369] Call Trace: [ 19.874265][ T369] sysfs_remove_link+0x50/0x60 [ 19.879028][ T369] del_gendisk+0x7cd/0xe20 [ 19.883437][ T369] ? device_add_disk_no_queue_reg+0x30/0x30 [ 19.889331][ T369] ? __radix_tree_delete+0x2ba/0x380 [ 19.894606][ T369] ? radix_tree_delete_item+0x261/0x360 [ 19.900154][ T369] loop_remove+0x46/0xb0 [ 19.904398][ T369] loop_control_ioctl+0x67f/0x740 [ 19.909433][ T369] ? __kasan_check_write+0x14/0x20 [ 19.914525][ T369] ? loop_remove+0xb0/0xb0 [ 19.918941][ T369] ? do_user_addr_fault+0x82e/0xcf0 [ 19.924128][ T369] ? security_file_ioctl+0xb1/0xd0 [ 19.929246][ T369] ? loop_remove+0xb0/0xb0 [ 19.933646][ T369] __se_sys_ioctl+0x115/0x190 [ 19.938292][ T369] __x64_sys_ioctl+0x7b/0x90 [ 19.942882][ T369] do_syscall_64+0x34/0x70 [ 19.947298][ T369] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.953198][ T369] RIP: 0033:0x7ff234a78079 [ 19.957610][ T369] 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 [ 19.977308][ T369] RSP: 002b:00007ffc8f13e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 19.985732][ T369] RAX: ffffffffffffffda RBX: 0000000000004509 RCX: 00007ff234a78079 [ 19.993701][ T369] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 20.001665][ T369] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 20.009649][ T369] R10: 00007ffc8f13de00 R11: 0000000000000246 R12: 00007ffc8f13e39c [ 20.017607][ T369] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.025584][ T369] ---[ end trace 99793c37380c4168 ]--- [ 20.031364][ T369] general protection fault, probably for non-canonical address 0xdffffc000000001a: 0000 [#1] PREEMPT SMP KASAN [ 20.043068][ T369] KASAN: null-ptr-deref in range [0x00000000000000d0-0x00000000000000d7] [ 20.051462][ T369] CPU: 1 PID: 369 Comm: syz-executor387 Tainted: G W 5.10.110-syzkaller-01300-ge08dd85cc95e #0 [ 20.063055][ T369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.073093][ T369] RIP: 0010:device_del+0xdf/0xf00 [ 20.078091][ T369] Code: 20 42 80 3c 28 00 74 08 48 89 df e8 1b 1f df fe 4c 89 7c 24 48 41 bf d0 00 00 00 48 89 5c 24 18 4c 03 3b 4d 89 fc 49 c1 ec 03 <43> 8a 04 2c 84 c0 0f 85 0d 0d 00 00 41 0f b6 1f 89 de 83 e6 01 31 [ 20.097665][ T369] RSP: 0018:ffffc9000097fb60 EFLAGS: 00010202 [ 20.103705][ T369] RAX: 1ffff110232c281a RBX: ffff8881196140d0 RCX: ffffffff84920db6 [ 20.111663][ T369] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc9000097fae0 [ 20.119607][ T369] RBP: ffffc9000097fc50 R08: dffffc0000000000 R09: fffff5200012ff5d [ 20.127551][ T369] R10: fffff5200012ff5d R11: 1ffff9200012ff5c R12: 000000000000001a [ 20.135498][ T369] R13: dffffc0000000000 R14: ffff888119614108 R15: 00000000000000d0 [ 20.143458][ T369] FS: 0000555556e81300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 20.152374][ T369] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.158929][ T369] CR2: 00007ff234ae9130 CR3: 0000000106bbb000 CR4: 00000000003506a0 [ 20.166874][ T369] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.174820][ T369] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.182773][ T369] Call Trace: [ 20.186038][ T369] ? _raw_spin_lock_irqsave+0x210/0x210 [ 20.191569][ T369] ? kernfs_name_hash+0x1f9/0x240 [ 20.196569][ T369] ? kill_device+0xd0/0xd0 [ 20.200959][ T369] ? mutex_unlock+0x1d/0x40 [ 20.205464][ T369] del_gendisk+0xbf2/0xe20 [ 20.209856][ T369] ? device_add_disk_no_queue_reg+0x30/0x30 [ 20.215739][ T369] ? __radix_tree_delete+0x2ba/0x380 [ 20.220997][ T369] ? radix_tree_delete_item+0x261/0x360 [ 20.226522][ T369] loop_remove+0x46/0xb0 [ 20.230740][ T369] loop_control_ioctl+0x67f/0x740 [ 20.235744][ T369] ? __kasan_check_write+0x14/0x20 [ 20.240833][ T369] ? loop_remove+0xb0/0xb0 [ 20.245219][ T369] ? do_user_addr_fault+0x82e/0xcf0 [ 20.250392][ T369] ? security_file_ioctl+0xb1/0xd0 [ 20.255533][ T369] ? loop_remove+0xb0/0xb0 [ 20.259983][ T369] __se_sys_ioctl+0x115/0x190 [ 20.264686][ T369] __x64_sys_ioctl+0x7b/0x90 [ 20.269263][ T369] do_syscall_64+0x34/0x70 [ 20.273671][ T369] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.279534][ T369] RIP: 0033:0x7ff234a78079 [ 20.283938][ T369] 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 [ 20.303524][ T369] RSP: 002b:00007ffc8f13e388 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.311917][ T369] RAX: ffffffffffffffda RBX: 0000000000004509 RCX: 00007ff234a78079 [ 20.319870][ T369] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 20.327823][ T369] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 20.335774][ T369] R10: 00007ffc8f13de00 R11: 0000000000000246 R12: 00007ffc8f13e39c [ 20.343721][ T369] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.351668][ T369] Modules linked in: [ 20.355721][ T369] ---[ end trace 99793c37380c4169 ]--- [ 20.361260][ T369] RIP: 0010:device_del+0xdf/0xf00 [ 20.366269][ T369] Code: 20 42 80 3c 28 00 74 08 48 89 df e8 1b 1f df fe 4c 89 7c 24 48 41 bf d0 00 00 00 48 89 5c 24 18 4c 03 3b 4d 89 fc 49 c1 ec 03 <43> 8a 04 2c 84 c0 0f 85 0d 0d 00 00 41 0f b6 1f 89 de 83 e6 01 31 [ 20.386026][ T369] RSP: 0018:ffffc9000097fb60 EFLAGS: 00010202 [ 20.392145][ T369] RAX: 1ffff110232c281a RBX: ffff8881196140d0 RCX: ffffffff84920db6 [ 20.400166][ T369] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc9000097fae0 [ 20.408138][ T369] RBP: ffffc9000097fc50 R08: dffffc0000000000 R09: fffff5200012ff5d [ 20.416130][ T369] R10: fffff5200012ff5d R11: 1ffff9200012ff5c R12: 000000000000001a [ 20.424155][ T369] R13: dffffc0000000000 R14: ffff888119614108 R15: 00000000000000d0 [ 20.432233][ T369] FS: 0000555556e81300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 20.441260][ T369] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.447848][ T369] CR2: 00007ff234ae9130 CR3: 0000000106bbb000 CR4: 00000000003506a0 [ 20.456015][ T369] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.464084][ T369] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.472152][ T369] Kernel panic - not syncing: Fatal exception [ 20.478420][ T369] Kernel Offset: disabled [ 20.482724][ T369] Rebooting in 86400 seconds..