[ 6.157995][ T23] audit: type=1400 audit(1635241203.519:70): avc: denied { read } for pid=255 comm="getty" name="log" dev="sda1" ino=1125 scontext=system_u:system_r:getty_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 syzkaller syzkaller login: [ 12.634580][ T23] audit: type=1400 audit(1635241209.999:71): avc: denied { transition } for pid=289 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 [ 12.639610][ T23] audit: type=1400 audit(1635241210.009:72): avc: denied { write } for pid=289 comm="sh" path="pipe:[11507]" dev="pipefs" ino=11507 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 [ 12.847388][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #88!!! [ 12.849052][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #88!!! [ 13.428107][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! Warning: Permanently added '10.128.0.128' (ECDSA) to the list of known hosts. executing program [ 19.609710][ T23] audit: type=1400 audit(1635241216.979:73): avc: denied { execmem } for pid=365 comm="syz-executor152" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 19.629340][ T23] audit: type=1400 audit(1635241216.979:74): avc: denied { read } for pid=366 comm="syz-executor152" 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 [ 19.654121][ T23] audit: type=1400 audit(1635241216.979:75): avc: denied { open } for pid=366 comm="syz-executor152" 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 [ 19.679182][ T23] audit: type=1400 audit(1635241216.979:76): avc: denied { ioctl } for pid=366 comm="syz-executor152" 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 [ 19.689710][ T366] FAULT_INJECTION: forcing a failure. [ 19.689710][ T366] name failslab, interval 1, probability 0, space 0, times 1 [ 19.718306][ T366] CPU: 0 PID: 366 Comm: syz-executor152 Not tainted 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 19.728430][ T366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.738467][ T366] Call Trace: [ 19.741808][ T366] dump_stack_lvl+0x1e2/0x24b [ 19.746463][ T366] ? devkmsg_release+0x127/0x127 [ 19.751380][ T366] ? __kasan_check_write+0x14/0x20 [ 19.756466][ T366] ? show_regs_print_info+0x18/0x18 [ 19.761645][ T366] ? kernfs_xattr_get+0x80/0x90 [ 19.766478][ T366] ? selinux_kernfs_init_security+0x1b2/0x7e0 [ 19.772607][ T366] dump_stack+0x15/0x1d [ 19.776737][ T366] should_fail+0x3c0/0x510 [ 19.781168][ T366] ? __kernfs_new_node+0x99/0x6e0 [ 19.786186][ T366] __should_failslab+0x9f/0xe0 [ 19.790922][ T366] should_failslab+0x9/0x20 [ 19.795398][ T366] __kmalloc_track_caller+0x67/0x3b0 [ 19.800657][ T366] kstrdup_const+0x55/0x90 [ 19.805583][ T366] __kernfs_new_node+0x99/0x6e0 [ 19.810405][ T366] ? __kasan_check_write+0x14/0x20 [ 19.815501][ T366] ? mutex_lock+0xa6/0x110 [ 19.819889][ T366] ? kernfs_new_node+0x170/0x170 [ 19.824889][ T366] ? __kasan_check_write+0x14/0x20 [ 19.829971][ T366] ? mutex_unlock+0x1d/0x40 [ 19.834445][ T366] kernfs_new_node+0x97/0x170 [ 19.839097][ T366] kernfs_create_link+0xb8/0x210 [ 19.844003][ T366] sysfs_do_create_link_sd+0x89/0x110 [ 19.849344][ T366] sysfs_create_link+0x68/0x80 [ 19.854083][ T366] device_add+0x983/0x1590 [ 19.858475][ T366] ? mutex_unlock+0x1d/0x40 [ 19.862946][ T366] ? virtual_device_parent+0x50/0x50 [ 19.868202][ T366] ? kobj_map+0x5c4/0x5f0 [ 19.872502][ T366] __device_add_disk+0x76b/0x11d0 [ 19.877495][ T366] ? memset+0x35/0x40 [ 19.881448][ T366] ? device_add_disk+0x40/0x40 [ 19.886186][ T366] ? vsprintf+0x40/0x40 [ 19.890324][ T366] device_add_disk+0x2a/0x40 [ 19.894896][ T366] loop_add+0x58f/0x760 [ 19.899028][ T366] loop_control_ioctl+0x564/0x7c0 [ 19.904025][ T366] ? xor_init+0x70/0x70 [ 19.908154][ T366] ? __fdget_pos+0x27a/0x300 [ 19.912719][ T366] ? ksys_write+0x246/0x2b0 [ 19.917196][ T366] ? security_file_ioctl+0xb1/0xd0 [ 19.922279][ T366] ? xor_init+0x70/0x70 [ 19.926498][ T366] __se_sys_ioctl+0x115/0x190 [ 19.931155][ T366] __x64_sys_ioctl+0x7b/0x90 [ 19.935718][ T366] do_syscall_64+0x31/0x70 [ 19.940114][ T366] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.946149][ T366] RIP: 0033:0x7f49133c8079 [ 19.950543][ 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 [ 19.970122][ T366] RSP: 002b:00007ffc49259ed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 19.978601][ T366] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f49133c8079 [ 19.986548][ T366] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 19.994595][ T366] RBP: 00007ffc49259ef0 R08: 0000000000000002 R09: 0000000000000001 [ 20.002541][ T366] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 20.010496][ T366] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.018873][ T366] kobject_add_internal failed for queue (error: -2 parent: loop0) [ 20.026820][ T366] ------------[ cut here ]------------ [ 20.032339][ T366] WARNING: CPU: 0 PID: 366 at fs/sysfs/file.c:328 sysfs_create_files+0x23e/0x3f0 [ 20.041453][ T366] Modules linked in: [ 20.045361][ T366] CPU: 0 PID: 366 Comm: syz-executor152 Not tainted 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 20.055516][ T366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.065592][ T366] RIP: 0010:sysfs_create_files+0x23e/0x3f0 [ 20.071404][ T366] Code: 00 4d 85 ed 0f 84 ce 00 00 00 e8 ed 01 95 ff 48 8b 5c 24 18 4c 8b 7c 24 38 e9 ae fe ff ff e8 d9 01 95 ff eb 05 e8 d2 01 95 ff <0f> 0b 41 bf ea ff ff ff eb 92 48 8d 4c 24 60 80 e1 07 80 c1 03 38 [ 20.091020][ T366] RSP: 0018:ffffc900009afae0 EFLAGS: 00010293 [ 20.097064][ T366] RAX: ffffffff81d7f71e RBX: ffff888106bb5098 RCX: ffff888106f93b40 [ 20.105042][ T366] RDX: 0000000000000000 RSI: ffffffff86740280 RDI: ffff888106bb5068 [ 20.113108][ T366] RBP: ffffc900009afbb0 R08: ffffffff82729067 R09: ffffed10213e27b2 [ 20.121107][ T366] R10: ffffed10213e27b2 R11: 0000000000000000 R12: dffffc0000000000 [ 20.129084][ T366] R13: ffffffff8548bfe0 R14: 0000000000000000 R15: ffff888106bb5068 [ 20.137144][ T366] FS: 0000555556adb300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 20.146094][ T366] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.152708][ T366] CR2: 00007fd4636f97f0 CR3: 00000001079af000 CR4: 00000000003506b0 [ 20.161110][ T366] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.169201][ T366] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.177155][ T366] Call Trace: [ 20.180457][ T366] ? sysfs_create_file_ns+0x2b0/0x2b0 [ 20.185910][ T366] ? __kasan_check_write+0x14/0x20 [ 20.191054][ T366] ? kobject_get+0xd1/0x120 [ 20.195551][ T366] __device_add_disk+0x9a3/0x11d0 [ 20.200582][ T366] ? memset+0x35/0x40 [ 20.204639][ T366] ? device_add_disk+0x40/0x40 [ 20.209420][ T366] ? vsprintf+0x40/0x40 [ 20.213570][ T366] device_add_disk+0x2a/0x40 [ 20.218164][ T366] loop_add+0x58f/0x760 [ 20.222318][ T366] loop_control_ioctl+0x564/0x7c0 [ 20.227374][ T366] ? xor_init+0x70/0x70 [ 20.231728][ T366] ? __fdget_pos+0x27a/0x300 [ 20.236291][ T366] ? ksys_write+0x246/0x2b0 [ 20.240796][ T366] ? security_file_ioctl+0xb1/0xd0 [ 20.245901][ T366] ? xor_init+0x70/0x70 [ 20.250068][ T366] __se_sys_ioctl+0x115/0x190 [ 20.254732][ T366] __x64_sys_ioctl+0x7b/0x90 [ 20.259332][ T366] do_syscall_64+0x31/0x70 [ 20.263754][ T366] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.269652][ T366] RIP: 0033:0x7f49133c8079 [ 20.274079][ 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 [ 20.293706][ T366] RSP: 002b:00007ffc49259ed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.302165][ T366] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f49133c8079 [ 20.310173][ T366] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 20.318144][ T366] RBP: 00007ffc49259ef0 R08: 0000000000000002 R09: 0000000000000001 [ 20.326090][ T366] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 20.334070][ T366] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.342053][ T366] ---[ end trace a4c966a9db73d00a ]--- [ 20.347517][ T366] ------------[ cut here ]------------ [ 20.352970][ T366] kernfs: can not remove 'events', no directory [ 20.359279][ T366] WARNING: CPU: 0 PID: 366 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90 [ 20.368814][ T366] Modules linked in: [ 20.372701][ T366] CPU: 0 PID: 366 Comm: syz-executor152 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 20.384236][ T366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.394304][ T366] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 20.400561][ T366] Code: 48 89 c3 e8 ed 60 95 ff 48 89 df e8 85 ee ff ff 31 db eb 29 e8 dc 60 95 ff 48 c7 c7 c0 3b 31 85 4c 89 fe 31 c0 e8 8b 43 68 ff <0f> 0b bb fe ff ff ff eb 16 e8 bd 60 95 ff bb fe ff ff ff 48 c7 c7 [ 20.420165][ T366] RSP: 0018:ffffc900009afab8 EFLAGS: 00010246 [ 20.426239][ T366] RAX: e23856bcfb9c2100 RBX: 0000000000000000 RCX: 1ffff92000135f10 [ 20.434217][ T366] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 20.442191][ T366] RBP: ffffc900009afad0 R08: ffffffff81545368 R09: fffff52000135e81 [ 20.450175][ T366] R10: fffff52000135e81 R11: 0000000000000000 R12: dffffc0000000000 [ 20.458177][ T366] R13: ffffffff86740280 R14: 0000000000000000 R15: ffffffff8548bfa0 [ 20.466130][ T366] FS: 0000555556adb300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 20.475070][ T366] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.481660][ T366] CR2: 00007fd4636f97f0 CR3: 00000001079af000 CR4: 00000000003506b0 [ 20.489635][ T366] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.497709][ T366] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.507042][ T366] Call Trace: [ 20.510342][ T366] sysfs_create_files+0x379/0x3f0 [ 20.515399][ T366] ? sysfs_create_file_ns+0x2b0/0x2b0 [ 20.520800][ T366] ? __kasan_check_write+0x14/0x20 [ 20.525933][ T366] ? kobject_get+0xd1/0x120 [ 20.530472][ T366] __device_add_disk+0x9a3/0x11d0 [ 20.535491][ T366] ? memset+0x35/0x40 [ 20.539486][ T366] ? device_add_disk+0x40/0x40 [ 20.544261][ T366] ? vsprintf+0x40/0x40 [ 20.548432][ T366] device_add_disk+0x2a/0x40 [ 20.553037][ T366] loop_add+0x58f/0x760 [ 20.557255][ T366] loop_control_ioctl+0x564/0x7c0 [ 20.562475][ T366] ? xor_init+0x70/0x70 [ 20.566625][ T366] ? __fdget_pos+0x27a/0x300 [ 20.571223][ T366] ? ksys_write+0x246/0x2b0 [ 20.575721][ T366] ? security_file_ioctl+0xb1/0xd0 [ 20.580850][ T366] ? xor_init+0x70/0x70 [ 20.585002][ T366] __se_sys_ioctl+0x115/0x190 [ 20.589684][ T366] __x64_sys_ioctl+0x7b/0x90 [ 20.594279][ T366] do_syscall_64+0x31/0x70 [ 20.598717][ T366] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.604590][ T366] RIP: 0033:0x7f49133c8079 [ 20.609004][ 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 [ 20.628618][ T366] RSP: 002b:00007ffc49259ed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.637009][ T366] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f49133c8079 [ 20.644985][ T366] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 20.652963][ T366] RBP: 00007ffc49259ef0 R08: 0000000000000002 R09: 0000000000000001 executing program [ 20.660947][ T366] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 20.668918][ T366] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.676867][ T366] ---[ end trace a4c966a9db73d00b ]--- [ 20.682319][ T366] loop0: failed to create sysfs files for events [ 20.690255][ T369] ------------[ cut here ]------------ [ 20.695710][ T369] kernfs: can not remove 'events', no directory [ 20.702026][ T369] WARNING: CPU: 0 PID: 369 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90 [ 20.711565][ T369] Modules linked in: [ 20.715458][ T369] CPU: 0 PID: 369 Comm: syz-executor152 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 20.726994][ T369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.737062][ T369] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 20.743235][ T369] Code: 48 89 c3 e8 ed 60 95 ff 48 89 df e8 85 ee ff ff 31 db eb 29 e8 dc 60 95 ff 48 c7 c7 c0 3b 31 85 4c 89 fe 31 c0 e8 8b 43 68 ff <0f> 0b bb fe ff ff ff eb 16 e8 bd 60 95 ff bb fe ff ff ff 48 c7 c7 [ 20.762859][ T369] RSP: 0018:ffffc900002bfc38 EFLAGS: 00010246 [ 20.768947][ T369] RAX: 2f2a8ebc84aa4b00 RBX: 0000000000000000 RCX: 1ffff92000057f40 [ 20.776914][ T369] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 20.784921][ T369] RBP: ffffc900002bfc50 R08: ffffffff81545368 R09: fffff52000057eb1 [ 20.792904][ T369] R10: fffff52000057eb1 R11: 0000000000000000 R12: 0000000000000000 [ 20.800890][ T369] R13: ffffffff86740280 R14: 0000000000000000 R15: ffffffff8548bfa0 [ 20.808984][ T369] FS: 0000555556adb300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 20.817995][ T369] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.824589][ T369] CR2: 00007f4913439130 CR3: 00000001079bb000 CR4: 00000000003506b0 [ 20.832594][ T369] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.840597][ T369] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.848595][ T369] Call Trace: [ 20.851901][ T369] sysfs_remove_files+0xab/0x110 [ 20.856906][ T369] del_gendisk+0x290/0xe30 [ 20.861344][ T369] ? __radix_tree_delete+0x2b9/0x380 [ 20.866812][ T369] ? device_add_disk_no_queue_reg+0x30/0x30 [ 20.872738][ T369] ? radix_tree_delete_item+0x251/0x340 [ 20.878780][ T369] loop_control_ioctl+0x6a3/0x7c0 [ 20.883785][ T369] ? xor_init+0x70/0x70 [ 20.887998][ T369] ? do_user_addr_fault+0x863/0xd70 [ 20.893196][ T369] ? security_file_ioctl+0xb1/0xd0 [ 20.898338][ T369] ? xor_init+0x70/0x70 [ 20.902476][ T369] __se_sys_ioctl+0x115/0x190 [ 20.907128][ T369] __x64_sys_ioctl+0x7b/0x90 [ 20.911761][ T369] do_syscall_64+0x31/0x70 [ 20.916170][ T369] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.922719][ T369] RIP: 0033:0x7f49133c8079 [ 20.927115][ 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 [ 20.946824][ T369] RSP: 002b:00007ffc49259ed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.955262][ T369] RAX: ffffffffffffffda RBX: 0000000000004c85 RCX: 00007f49133c8079 [ 20.963325][ T369] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 20.971306][ T369] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 20.979279][ T369] R10: 00007ffc49259950 R11: 0000000000000246 R12: 00007ffc49259eec [ 20.987236][ T369] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.995216][ T369] ---[ end trace a4c966a9db73d00c ]--- [ 21.000703][ T369] ------------[ cut here ]------------ [ 21.006149][ T369] kernfs: can not remove 'events_async', no directory [ 21.012976][ T369] WARNING: CPU: 0 PID: 369 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90 [ 21.022601][ T369] Modules linked in: [ 21.026487][ T369] CPU: 0 PID: 369 Comm: syz-executor152 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 21.038118][ T369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.048296][ T369] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 21.054427][ T369] Code: 48 89 c3 e8 ed 60 95 ff 48 89 df e8 85 ee ff ff 31 db eb 29 e8 dc 60 95 ff 48 c7 c7 c0 3b 31 85 4c 89 fe 31 c0 e8 8b 43 68 ff <0f> 0b bb fe ff ff ff eb 16 e8 bd 60 95 ff bb fe ff ff ff 48 c7 c7 [ 21.074050][ T369] RSP: 0018:ffffc900002bfc38 EFLAGS: 00010246 [ 21.080135][ T369] RAX: 2f2a8ebc84aa4b00 RBX: 0000000000000000 RCX: 1ffff92000057f40 [ 21.088107][ T369] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 21.096190][ T369] RBP: ffffc900002bfc50 R08: ffffffff81545368 R09: fffff52000057eb1 [ 21.104169][ T369] R10: fffff52000057eb1 R11: 0000000000000000 R12: 0000000000000000 [ 21.112142][ T369] R13: ffffffff86740280 R14: 0000000000000000 R15: ffffffff8548c120 [ 21.120126][ T369] FS: 0000555556adb300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 21.129068][ T369] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.135642][ T369] CR2: 00007f4913439130 CR3: 00000001079bb000 CR4: 00000000003506b0 [ 21.143712][ T369] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.151690][ T369] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.159657][ T369] Call Trace: [ 21.162933][ T369] sysfs_remove_files+0xab/0x110 [ 21.167870][ T369] del_gendisk+0x290/0xe30 [ 21.172307][ T369] ? __radix_tree_delete+0x2b9/0x380 [ 21.177594][ T369] ? device_add_disk_no_queue_reg+0x30/0x30 [ 21.183478][ T369] ? radix_tree_delete_item+0x251/0x340 [ 21.189032][ T369] loop_control_ioctl+0x6a3/0x7c0 [ 21.194056][ T369] ? xor_init+0x70/0x70 [ 21.198218][ T369] ? do_user_addr_fault+0x863/0xd70 [ 21.203418][ T369] ? security_file_ioctl+0xb1/0xd0 [ 21.208531][ T369] ? xor_init+0x70/0x70 [ 21.212678][ T369] __se_sys_ioctl+0x115/0x190 [ 21.217363][ T369] __x64_sys_ioctl+0x7b/0x90 [ 21.221936][ T369] do_syscall_64+0x31/0x70 [ 21.226325][ T369] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 21.232235][ T369] RIP: 0033:0x7f49133c8079 [ 21.236634][ 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 [ 21.256269][ T369] RSP: 002b:00007ffc49259ed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 21.264686][ T369] RAX: ffffffffffffffda RBX: 0000000000004c85 RCX: 00007f49133c8079 [ 21.272671][ T369] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 21.280661][ T369] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 21.288652][ T369] R10: 00007ffc49259950 R11: 0000000000000246 R12: 00007ffc49259eec [ 21.296608][ T369] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 21.304586][ T369] ---[ end trace a4c966a9db73d00d ]--- [ 21.310044][ T369] ------------[ cut here ]------------ [ 21.315473][ T369] kernfs: can not remove 'events_poll_msecs', no directory [ 21.322726][ T369] WARNING: CPU: 0 PID: 369 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90 [ 21.332456][ T369] Modules linked in: [ 21.336347][ T369] CPU: 0 PID: 369 Comm: syz-executor152 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 21.347890][ T369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.357961][ T369] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 21.364098][ T369] Code: 48 89 c3 e8 ed 60 95 ff 48 89 df e8 85 ee ff ff 31 db eb 29 e8 dc 60 95 ff 48 c7 c7 c0 3b 31 85 4c 89 fe 31 c0 e8 8b 43 68 ff <0f> 0b bb fe ff ff ff eb 16 e8 bd 60 95 ff bb fe ff ff ff 48 c7 c7 [ 21.383848][ T369] RSP: 0018:ffffc900002bfc38 EFLAGS: 00010246 [ 21.389933][ T369] RAX: 2f2a8ebc84aa4b00 RBX: 0000000000000000 RCX: 1ffff92000057f40 [ 21.397902][ T369] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 21.405858][ T369] RBP: ffffc900002bfc50 R08: ffffffff81545368 R09: fffff52000057eb1 [ 21.413832][ T369] R10: fffff52000057eb1 R11: 0000000000000000 R12: 0000000000000000 [ 21.422010][ T369] R13: ffffffff86740280 R14: 0000000000000000 R15: ffffffff8548c1a0 [ 21.430013][ T369] FS: 0000555556adb300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 21.439386][ T369] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.445947][ T369] CR2: 00007f4913439130 CR3: 00000001079bb000 CR4: 00000000003506b0 [ 21.453963][ T369] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.461966][ T369] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.469939][ T369] Call Trace: [ 21.473217][ T369] sysfs_remove_files+0xab/0x110 [ 21.478164][ T369] del_gendisk+0x290/0xe30 [ 21.482574][ T369] ? __radix_tree_delete+0x2b9/0x380 [ 21.487883][ T369] ? device_add_disk_no_queue_reg+0x30/0x30 [ 21.493790][ T369] ? radix_tree_delete_item+0x251/0x340 [ 21.499378][ T369] loop_control_ioctl+0x6a3/0x7c0 [ 21.504400][ T369] ? xor_init+0x70/0x70 [ 21.508579][ T369] ? do_user_addr_fault+0x863/0xd70 [ 21.513778][ T369] ? security_file_ioctl+0xb1/0xd0 [ 21.518902][ T369] ? xor_init+0x70/0x70 [ 21.523052][ T369] __se_sys_ioctl+0x115/0x190 [ 21.527736][ T369] __x64_sys_ioctl+0x7b/0x90 [ 21.532327][ T369] do_syscall_64+0x31/0x70 [ 21.536720][ T369] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 21.542638][ T369] RIP: 0033:0x7f49133c8079 [ 21.547047][ 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 [ 21.566702][ T369] RSP: 002b:00007ffc49259ed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 21.575122][ T369] RAX: ffffffffffffffda RBX: 0000000000004c85 RCX: 00007f49133c8079 [ 21.583097][ T369] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 21.591069][ T369] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 21.599041][ T369] R10: 00007ffc49259950 R11: 0000000000000246 R12: 00007ffc49259eec [ 21.607013][ T369] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 21.614997][ T369] ---[ end trace a4c966a9db73d00e ]--- [ 21.620493][ T369] ------------[ cut here ]------------ [ 21.626021][ T369] kernfs: can not remove 'bdi', no directory [ 21.632105][ T369] WARNING: CPU: 0 PID: 369 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90 [ 21.641650][ T369] Modules linked in: [ 21.645533][ T369] CPU: 0 PID: 369 Comm: syz-executor152 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 21.657079][ T369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.667161][ T369] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 21.673329][ T369] Code: 48 89 c3 e8 ed 60 95 ff 48 89 df e8 85 ee ff ff 31 db eb 29 e8 dc 60 95 ff 48 c7 c7 c0 3b 31 85 4c 89 fe 31 c0 e8 8b 43 68 ff <0f> 0b bb fe ff ff ff eb 16 e8 bd 60 95 ff bb fe ff ff ff 48 c7 c7 [ 21.692967][ T369] RSP: 0018:ffffc900002bfc58 EFLAGS: 00010246 [ 21.699074][ T369] RAX: 2f2a8ebc84aa4b00 RBX: 0000000000000000 RCX: 1ffff92000057f44 [ 21.707135][ T369] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 21.715158][ T369] RBP: ffffc900002bfc70 R08: ffffffff81545368 R09: fffff52000057eb5 [ 21.723166][ T369] R10: fffff52000057eb5 R11: 0000000000000000 R12: 0000000000000240 [ 21.731186][ T369] R13: ffffc900002bfd00 R14: 0000000000000000 R15: ffffffff8548b7a0 [ 21.739197][ T369] FS: 0000555556adb300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 21.748183][ T369] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.754836][ T369] CR2: 00007ffc49259eb8 CR3: 00000001079bb000 CR4: 00000000003506a0 [ 21.762860][ T369] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.770899][ T369] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.778983][ T369] Call Trace: [ 21.782250][ T369] sysfs_remove_link+0x50/0x60 [ 21.787162][ T369] del_gendisk+0x7db/0xe30 [ 21.791712][ T369] ? device_add_disk_no_queue_reg+0x30/0x30 [ 21.797700][ T369] ? radix_tree_delete_item+0x251/0x340 [ 21.803229][ T369] loop_control_ioctl+0x6a3/0x7c0 [ 21.808410][ T369] ? xor_init+0x70/0x70 [ 21.812565][ T369] ? do_user_addr_fault+0x863/0xd70 [ 21.817863][ T369] ? security_file_ioctl+0xb1/0xd0 [ 21.822950][ T369] ? xor_init+0x70/0x70 [ 21.827079][ T369] __se_sys_ioctl+0x115/0x190 [ 21.831884][ T369] __x64_sys_ioctl+0x7b/0x90 [ 21.836453][ T369] do_syscall_64+0x31/0x70 [ 21.841020][ T369] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 21.846919][ T369] RIP: 0033:0x7f49133c8079 [ 21.851472][ 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 [ 21.872213][ T369] RSP: 002b:00007ffc49259ed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 21.880737][ T369] RAX: ffffffffffffffda RBX: 0000000000004c85 RCX: 00007f49133c8079 [ 21.888807][ T369] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 21.896816][ T369] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 21.905094][ T369] R10: 00007ffc49259950 R11: 0000000000000246 R12: 00007ffc49259eec [ 21.913187][ T369] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 21.921296][ T369] ---[ end trace a4c966a9db73d00f ]--- [ 21.927035][ T369] general protection fault, probably for non-canonical address 0xdffffc000000001a: 0000 [#1] PREEMPT SMP KASAN [ 21.938742][ T369] KASAN: null-ptr-deref in range [0x00000000000000d0-0x00000000000000d7] [ 21.947135][ T369] CPU: 0 PID: 369 Comm: syz-executor152 Tainted: G W 5.10.75-syzkaller-01082-g234d53d2bb60 #0 [ 21.958659][ T369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.968872][ T369] RIP: 0010:device_del+0xda/0xf00 [ 21.973870][ T369] Code: 18 42 80 3c 28 00 74 08 48 89 df e8 80 e6 d7 fe 4c 89 7c 24 08 41 bf d0 00 00 00 48 89 5c 24 10 4c 03 3b 4d 89 fc 49 c1 ec 03 <43> 8a 04 2c 84 c0 0f 85 1b 0d 00 00 45 0f b6 2f 44 89 eb 83 e3 01 [ 21.993622][ T369] RSP: 0018:ffffc900002bfba0 EFLAGS: 00010202 [ 21.999671][ T369] RAX: 1ffff11020d76a1a RBX: ffff888106bb50d0 RCX: ffffffff849cd326 [ 22.007621][ T369] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc900002bfb20 [ 22.015577][ T369] RBP: ffffc900002bfc90 R08: dffffc0000000000 R09: fffff52000057f65 [ 22.023529][ T369] R10: fffff52000057f65 R11: 0000000000000000 R12: 000000000000001a [ 22.031474][ T369] R13: dffffc0000000000 R14: ffff888106bb5108 R15: 00000000000000d0 [ 22.039425][ T369] FS: 0000555556adb300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 22.048384][ T369] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.054984][ T369] CR2: 00007f4913439130 CR3: 00000001079bb000 CR4: 00000000003506b0 [ 22.063226][ T369] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.071182][ T369] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.079131][ T369] Call Trace: [ 22.082397][ T369] ? mutex_trylock+0xb0/0xb0 [ 22.086961][ T369] ? kill_device+0xc0/0xc0 [ 22.092053][ T369] ? __kasan_check_write+0x14/0x20 [ 22.097137][ T369] ? mutex_unlock+0x1d/0x40 [ 22.101632][ T369] ? pm_runtime_set_memalloc_noio+0x226/0x270 [ 22.107695][ T369] del_gendisk+0xc00/0xe30 [ 22.112093][ T369] ? device_add_disk_no_queue_reg+0x30/0x30 [ 22.117962][ T369] ? radix_tree_delete_item+0x251/0x340 [ 22.123479][ T369] loop_control_ioctl+0x6a3/0x7c0 [ 22.128475][ T369] ? xor_init+0x70/0x70 [ 22.132601][ T369] ? do_user_addr_fault+0x863/0xd70 [ 22.137769][ T369] ? security_file_ioctl+0xb1/0xd0 [ 22.142850][ T369] ? xor_init+0x70/0x70 [ 22.146977][ T369] __se_sys_ioctl+0x115/0x190 [ 22.151625][ T369] __x64_sys_ioctl+0x7b/0x90 [ 22.156189][ T369] do_syscall_64+0x31/0x70 [ 22.160582][ T369] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 22.166461][ T369] RIP: 0033:0x7f49133c8079 [ 22.170857][ 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 [ 22.190790][ T369] RSP: 002b:00007ffc49259ed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.199194][ T369] RAX: ffffffffffffffda RBX: 0000000000004c85 RCX: 00007f49133c8079 [ 22.207138][ T369] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 22.215082][ T369] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 22.223028][ T369] R10: 00007ffc49259950 R11: 0000000000000246 R12: 00007ffc49259eec [ 22.230979][ T369] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 22.238927][ T369] Modules linked in: [ 22.242965][ T369] ---[ end trace a4c966a9db73d010 ]--- [ 22.248537][ T369] RIP: 0010:device_del+0xda/0xf00 [ 22.253557][ T369] Code: 18 42 80 3c 28 00 74 08 48 89 df e8 80 e6 d7 fe 4c 89 7c 24 08 41 bf d0 00 00 00 48 89 5c 24 10 4c 03 3b 4d 89 fc 49 c1 ec 03 <43> 8a 04 2c 84 c0 0f 85 1b 0d 00 00 45 0f b6 2f 44 89 eb 83 e3 01 [ 22.273200][ T369] RSP: 0018:ffffc900002bfba0 EFLAGS: 00010202 [ 22.279355][ T369] RAX: 1ffff11020d76a1a RBX: ffff888106bb50d0 RCX: ffffffff849cd326 [ 22.287367][ T369] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc900002bfb20 [ 22.295355][ T369] RBP: ffffc900002bfc90 R08: dffffc0000000000 R09: fffff52000057f65 [ 22.303349][ T369] R10: fffff52000057f65 R11: 0000000000000000 R12: 000000000000001a [ 22.311383][ T369] R13: dffffc0000000000 R14: ffff888106bb5108 R15: 00000000000000d0 [ 22.319465][ T369] FS: 0000555556adb300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 22.328489][ T369] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.335063][ T369] CR2: 00007f4913439130 CR3: 00000001079bb000 CR4: 00000000003506b0 [ 22.343154][ T369] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.351314][ T369] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.359431][ T369] Kernel panic - not syncing: Fatal exception [ 22.365584][ T369] Kernel Offset: disabled [ 22.369887][ T369] Rebooting in 86400 seconds..