syzkaller
syzkaller login: [ 4.596073][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!!
[ 10.215812][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #282!!!
[ 11.143298][ T23] kauditd_printk_skb: 60 callbacks suppressed
[ 11.143308][ T23] audit: type=1400 audit(1650247313.649:71): avc: denied { transition } for pid=290 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
[ 11.150680][ T23] audit: type=1400 audit(1650247313.649:72): avc: denied { write } for pid=290 comm="sh" path="pipe:[288]" dev="pipefs" ino=288 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1
[ 11.185754][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
[ 11.695801][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #82!!!
[ 12.085715][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
Warning: Permanently added '10.128.10.1' (ECDSA) to the list of known hosts.
executing program
executing program
[ 23.298487][ T23] audit: type=1400 audit(1650247325.809:73): avc: denied { execmem } for pid=365 comm="syz-executor127" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 23.302351][ T23] audit: type=1400 audit(1650247325.809:74): avc: denied { read } for pid=366 comm="syz-executor127" 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
[ 23.306061][ T23] audit: type=1400 audit(1650247325.809:75): avc: denied { open } for pid=366 comm="syz-executor127" 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
[ 23.313058][ T23] audit: type=1400 audit(1650247325.809:76): avc: denied { ioctl } for pid=366 comm="syz-executor127" 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
[ 23.338163][ T369] FAULT_INJECTION: forcing a failure.
[ 23.338163][ T369] name failslab, interval 1, probability 0, space 0, times 1
[ 23.350806][ T369] CPU: 0 PID: 369 Comm: syz-executor127 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0
[ 23.361012][ T369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 23.371048][ T369] Call Trace:
[ 23.374319][ T369] dump_stack_lvl+0x1e2/0x24b
[ 23.378981][ T369] ? panic+0x7d7/0x7d7
[ 23.383027][ T369] ? bfq_pos_tree_add_move+0x43e/0x43e
[ 23.388566][ T369] ? _raw_spin_lock_bh+0xa3/0x1b0
[ 23.393568][ T369] ? _raw_spin_lock_irq+0x1b0/0x1b0
[ 23.398743][ T369] dump_stack+0x15/0x17
[ 23.402879][ T369] should_fail+0x3c0/0x510
[ 23.407290][ T369] ? kobj_map+0x72/0x6f0
[ 23.411509][ T369] __should_failslab+0x9f/0xe0
[ 23.416246][ T369] should_failslab+0x9/0x20
[ 23.420742][ T369] __kmalloc+0x60/0x360
[ 23.424886][ T369] ? __device_add_disk+0x536/0x11d0
[ 23.430059][ T369] kobj_map+0x72/0x6f0
[ 23.434104][ T369] ? exact_match+0x20/0x20
[ 23.438496][ T369] ? bdev_check_media_change+0x4c0/0x4c0
[ 23.444108][ T369] __device_add_disk+0x663/0x11d0
[ 23.449116][ T369] ? device_add_disk+0x40/0x40
[ 23.453859][ T369] ? loop_add+0x370/0x760
[ 23.458169][ T369] ? vsprintf+0x40/0x40
[ 23.462302][ T369] device_add_disk+0x2a/0x40
[ 23.466871][ T369] loop_add+0x58f/0x760
[ 23.471026][ T369] loop_control_ioctl+0x564/0x740
[ 23.476029][ T369] ? loop_remove+0xb0/0xb0
[ 23.480442][ T369] ? __fdget_pos+0x27e/0x310
[ 23.485019][ T369] ? ksys_write+0x24e/0x2c0
[ 23.489501][ T369] ? security_file_ioctl+0xb1/0xd0
[ 23.494603][ T369] ? loop_remove+0xb0/0xb0
[ 23.499003][ T369] __se_sys_ioctl+0x115/0x190
[ 23.503655][ T369] __x64_sys_ioctl+0x7b/0x90
[ 23.508219][ T369] do_syscall_64+0x34/0x70
[ 23.512607][ T369] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 23.518467][ T369] RIP: 0033:0x7f231792c0c9
[ 23.522853][ 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
executing program
executing program
[ 23.542445][ T369] RSP: 002b:00007ffd7ec02bc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 23.550848][ T369] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f231792c0c9
[ 23.558792][ T369] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003
[ 23.566742][ T369] RBP: 00007ffd7ec02be0 R08: 0000000000000002 R09: 0000000000000001
[ 23.574690][ T369] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
[ 23.582631][ T369] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
executing program
[ 23.637753][ T372] FAULT_INJECTION: forcing a failure.
[ 23.637753][ T372] name fail_page_alloc, interval 1, probability 0, space 0, times 1
[ 23.651025][ T372] CPU: 1 PID: 372 Comm: syz-executor127 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0
[ 23.661259][ T372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 23.671290][ T372] Call Trace:
[ 23.674556][ T372] dump_stack_lvl+0x1e2/0x24b
[ 23.679210][ T372] ? bfq_pos_tree_add_move+0x43e/0x43e
[ 23.684641][ T372] dump_stack+0x15/0x17
[ 23.688769][ T372] should_fail+0x3c0/0x510
[ 23.693165][ T372] should_fail_alloc_page+0x50/0x60
[ 23.698334][ T372] __alloc_pages_nodemask+0x1c0/0x890
[ 23.703677][ T372] ? loop_add+0x58f/0x760
[ 23.707978][ T372] ? loop_control_ioctl+0x564/0x740
[ 23.713146][ T372] ? __se_sys_ioctl+0x115/0x190
[ 23.717972][ T372] ? gfp_pfmemalloc_allowed+0x120/0x120
[ 23.723494][ T372] ? __kasan_check_write+0x14/0x20
[ 23.728580][ T372] ? lockref_get+0x1b3/0x2a0
[ 23.733149][ T372] ? __kasan_check_write+0x14/0x20
[ 23.738238][ T372] __get_free_pages+0xe/0x30
[ 23.742809][ T372] selinux_genfs_get_sid+0x56/0x250
[ 23.747987][ T372] inode_doinit_with_dentry+0x858/0x1030
[ 23.753594][ T372] ? sb_finish_set_opts+0x7f0/0x7f0
[ 23.759202][ T372] ? current_time+0x1c4/0x310
[ 23.763854][ T372] selinux_d_instantiate+0x27/0x40
[ 23.768941][ T372] security_d_instantiate+0xa5/0x100
[ 23.774206][ T372] d_instantiate+0x55/0x90
[ 23.778597][ T372] __debugfs_create_file+0x2d7/0x4a0
[ 23.783856][ T372] debugfs_create_file+0x4a/0x60
[ 23.788774][ T372] bdi_register_va+0x2ab/0x600
[ 23.793513][ T372] bdi_register+0xd1/0x120
[ 23.797904][ T372] ? __device_add_disk+0x536/0x11d0
[ 23.803075][ T372] ? bdi_register_va+0x600/0x600
[ 23.807989][ T372] ? vsnprintf+0x1bfd/0x1cd0
[ 23.812558][ T372] ? __kasan_check_read+0x11/0x20
[ 23.817553][ T372] ? blk_alloc_devt+0xd4/0x320
[ 23.822292][ T372] __device_add_disk+0x5cb/0x11d0
[ 23.827292][ T372] ? device_add_disk+0x40/0x40
[ 23.832032][ T372] ? loop_add+0x370/0x760
[ 23.836342][ T372] ? vsprintf+0x40/0x40
[ 23.840475][ T372] device_add_disk+0x2a/0x40
[ 23.845044][ T372] loop_add+0x58f/0x760
[ 23.849175][ T372] loop_control_ioctl+0x564/0x740
[ 23.854177][ T372] ? loop_remove+0xb0/0xb0
[ 23.858572][ T372] ? __fdget_pos+0x27e/0x310
[ 23.863139][ T372] ? ksys_write+0x24e/0x2c0
[ 23.867618][ T372] ? security_file_ioctl+0xb1/0xd0
[ 23.872704][ T372] ? loop_remove+0xb0/0xb0
[ 23.877094][ T372] __se_sys_ioctl+0x115/0x190
[ 23.881747][ T372] __x64_sys_ioctl+0x7b/0x90
[ 23.886314][ T372] do_syscall_64+0x34/0x70
[ 23.890708][ T372] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 23.896579][ T372] RIP: 0033:0x7f231792c0c9
[ 23.900971][ T372] 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
[ 23.920550][ T372] RSP: 002b:00007ffd7ec02bc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 23.928939][ T372] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f231792c0c9
executing program
executing program
executing program
[ 23.936890][ T372] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003
[ 23.944840][ T372] RBP: 00007ffd7ec02be0 R08: 0000000000000002 R09: 0000000000000001
[ 23.952789][ T372] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
[ 23.960737][ T372] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 23.998496][ T375] FAULT_INJECTION: forcing a failure.
[ 23.998496][ T375] name failslab, interval 1, probability 0, space 0, times 0
[ 24.011141][ T375] CPU: 0 PID: 375 Comm: syz-executor127 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0
[ 24.021350][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 24.031375][ T375] Call Trace:
[ 24.034640][ T375] dump_stack_lvl+0x1e2/0x24b
[ 24.039300][ T375] ? panic+0x7d7/0x7d7
[ 24.043344][ T375] ? bfq_pos_tree_add_move+0x43e/0x43e
[ 24.048781][ T375] ? _raw_spin_lock_bh+0xa3/0x1b0
[ 24.053782][ T375] ? _raw_spin_lock_irq+0x1b0/0x1b0
[ 24.058967][ T375] dump_stack+0x15/0x17
[ 24.063105][ T375] should_fail+0x3c0/0x510
[ 24.067506][ T375] ? kobj_map+0x72/0x6f0
[ 24.071722][ T375] __should_failslab+0x9f/0xe0
[ 24.076459][ T375] should_failslab+0x9/0x20
[ 24.080936][ T375] __kmalloc+0x60/0x360
[ 24.085068][ T375] ? __device_add_disk+0x536/0x11d0
[ 24.090235][ T375] kobj_map+0x72/0x6f0
[ 24.094276][ T375] ? exact_match+0x20/0x20
[ 24.098672][ T375] ? bdev_check_media_change+0x4c0/0x4c0
[ 24.104286][ T375] __device_add_disk+0x663/0x11d0
[ 24.109288][ T375] ? device_add_disk+0x40/0x40
[ 24.114025][ T375] ? loop_add+0x370/0x760
[ 24.118326][ T375] ? vsprintf+0x40/0x40
[ 24.122456][ T375] device_add_disk+0x2a/0x40
[ 24.127018][ T375] loop_add+0x58f/0x760
[ 24.131148][ T375] loop_control_ioctl+0x564/0x740
[ 24.136146][ T375] ? loop_remove+0xb0/0xb0
[ 24.140535][ T375] ? __fdget_pos+0x27e/0x310
[ 24.145095][ T375] ? ksys_write+0x24e/0x2c0
[ 24.149579][ T375] ? security_file_ioctl+0xb1/0xd0
[ 24.154670][ T375] ? loop_remove+0xb0/0xb0
[ 24.159059][ T375] __se_sys_ioctl+0x115/0x190
[ 24.163706][ T375] __x64_sys_ioctl+0x7b/0x90
[ 24.168268][ T375] do_syscall_64+0x34/0x70
[ 24.172653][ T375] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 24.178511][ T375] RIP: 0033:0x7f231792c0c9
[ 24.182896][ T375] 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
[ 24.202582][ T375] RSP: 002b:00007ffd7ec02bc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 24.210970][ T375] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f231792c0c9
[ 24.218913][ T375] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003
[ 24.226855][ T375] RBP: 00007ffd7ec02be0 R08: 0000000000000002 R09: 0000000000000001
[ 24.234802][ T375] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
executing program
executing program
[ 24.242743][ T375] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
executing program
[ 24.298608][ T378] FAULT_INJECTION: forcing a failure.
[ 24.298608][ T378] name failslab, interval 1, probability 0, space 0, times 0
[ 24.311254][ T378] CPU: 0 PID: 378 Comm: syz-executor127 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0
[ 24.321469][ T378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 24.331498][ T378] Call Trace:
[ 24.334764][ T378] dump_stack_lvl+0x1e2/0x24b
[ 24.339412][ T378] ? panic+0x7d7/0x7d7
[ 24.343449][ T378] ? bfq_pos_tree_add_move+0x43e/0x43e
[ 24.348910][ T378] ? __kasan_kmalloc+0x9/0x10
[ 24.353558][ T378] ? kobj_map+0x72/0x6f0
[ 24.357786][ T378] ? __device_add_disk+0x663/0x11d0
[ 24.362968][ T378] ? device_add_disk+0x2a/0x40
[ 24.367704][ T378] ? loop_control_ioctl+0x564/0x740
[ 24.372871][ T378] ? __se_sys_ioctl+0x115/0x190
[ 24.377708][ T378] ? __x64_sys_ioctl+0x7b/0x90
[ 24.382448][ T378] dump_stack+0x15/0x17
[ 24.386576][ T378] should_fail+0x3c0/0x510
[ 24.390960][ T378] ? kvasprintf_const+0x139/0x180
[ 24.395963][ T378] __should_failslab+0x9f/0xe0
[ 24.400695][ T378] should_failslab+0x9/0x20
[ 24.405169][ T378] __kmalloc_track_caller+0x5f/0x350
[ 24.410425][ T378] kstrdup_const+0x55/0x90
[ 24.414989][ T378] kvasprintf_const+0x139/0x180
[ 24.419821][ T378] kobject_set_name_vargs+0x61/0x120
[ 24.425076][ T378] dev_set_name+0xd1/0x120
[ 24.429465][ T378] ? __kmalloc+0x1f7/0x360
[ 24.433851][ T378] ? get_device+0x30/0x30
[ 24.438152][ T378] ? kobj_map+0x6ad/0x6f0
[ 24.442456][ T378] __device_add_disk+0x6e5/0x11d0
[ 24.447450][ T378] ? device_add_disk+0x40/0x40
[ 24.452187][ T378] ? vsprintf+0x40/0x40
[ 24.456327][ T378] device_add_disk+0x2a/0x40
[ 24.460904][ T378] loop_add+0x58f/0x760
[ 24.465042][ T378] loop_control_ioctl+0x564/0x740
[ 24.470035][ T378] ? loop_remove+0xb0/0xb0
[ 24.474422][ T378] ? __fdget_pos+0x27e/0x310
[ 24.478982][ T378] ? ksys_write+0x24e/0x2c0
[ 24.483469][ T378] ? security_file_ioctl+0xb1/0xd0
[ 24.488558][ T378] ? loop_remove+0xb0/0xb0
[ 24.492963][ T378] __se_sys_ioctl+0x115/0x190
[ 24.497626][ T378] __x64_sys_ioctl+0x7b/0x90
[ 24.502188][ T378] do_syscall_64+0x34/0x70
[ 24.506589][ T378] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 24.512453][ T378] RIP: 0033:0x7f231792c0c9
[ 24.516837][ T378] 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
[ 24.536426][ T378] RSP: 002b:00007ffd7ec02bc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 24.544908][ T378] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f231792c0c9
[ 24.552853][ T378] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003
[ 24.560796][ T378] RBP: 00007ffd7ec02be0 R08: 0000000000000002 R09: 0000000000000001
[ 24.568736][ T378] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
[ 24.576685][ T378] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 24.584758][ T378] kobject_add_internal failed for queue (error: -2 parent: (null))
[ 24.592714][ T378] ------------[ cut here ]------------
[ 24.598180][ T378] WARNING: CPU: 0 PID: 378 at fs/sysfs/file.c:328 sysfs_create_files+0x215/0x4a0
[ 24.607278][ T378] Modules linked in:
[ 24.611161][ T378] CPU: 0 PID: 378 Comm: syz-executor127 Not tainted 5.10.109-syzkaller-00693-g414e6c8e941c #0
[ 24.621391][ T378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 24.631560][ T378] RIP: 0010:sysfs_create_files+0x215/0x4a0
[ 24.637372][ T378] 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 00 9b ff <0f> 0b c7 44 24 04 ea ff ff ff 48 b9 00 00 00 00 00 fc ff df 48 8b
[ 24.656987][ T378] RSP: 0018:ffffc90000b87ae0 EFLAGS: 00010293
[ 24.663025][ T378] RAX: ffffffff81d1b551 RBX: ffff8881061a2098 RCX: ffff8881067ecf00
[ 24.670999][ T378] RDX: 0000000000000000 RSI: ffffffff86539060 RDI: ffff8881061a2068
[ 24.678970][ T378] RBP: ffffc90000b87bb0 R08: ffffffff826b6698 R09: ffffed102013412e
[ 24.686969][ T378] R10: ffffed102013412e R11: 1ffff1102013412d R12: 0000000000000000
[ 24.694928][ T378] R13: ffffffff8542f1e0 R14: ffff8881061a2068 R15: ffffffff86539060
[ 24.702923][ T378] FS: 00005555558dd300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 24.711859][ T378] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 24.718454][ T378] CR2: 00007f2317984144 CR3: 0000000106bb1000 CR4: 00000000003506b0
[ 24.726682][ T378] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 24.734627][ T378] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 24.742803][ T378] Call Trace:
[ 24.746127][ T378] ? sysfs_create_file_ns+0x2a0/0x2a0
[ 24.751489][ T378] ? __kasan_check_write+0x14/0x20
[ 24.756601][ T378] ? kobject_get+0xd2/0x120
[ 24.761096][ T378] __device_add_disk+0x9cb/0x11d0
[ 24.766127][ T378] ? device_add_disk+0x40/0x40
[ 24.770884][ T378] ? vsprintf+0x40/0x40
[ 24.775025][ T378] device_add_disk+0x2a/0x40
[ 24.779620][ T378] loop_add+0x58f/0x760
[ 24.783758][ T378] loop_control_ioctl+0x564/0x740
[ 24.788788][ T378] ? loop_remove+0xb0/0xb0
[ 24.793195][ T378] ? __fdget_pos+0x27e/0x310
[ 24.797786][ T378] ? ksys_write+0x24e/0x2c0
[ 24.802279][ T378] ? security_file_ioctl+0xb1/0xd0
[ 24.807430][ T378] ? loop_remove+0xb0/0xb0
[ 24.811851][ T378] __se_sys_ioctl+0x115/0x190
[ 24.816549][ T378] __x64_sys_ioctl+0x7b/0x90
[ 24.821120][ T378] do_syscall_64+0x34/0x70
[ 24.825508][ T378] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 24.831512][ T378] RIP: 0033:0x7f231792c0c9
[ 24.835943][ T378] 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
[ 24.855605][ T378] RSP: 002b:00007ffd7ec02bc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 24.864032][ T378] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f231792c0c9
[ 24.872010][ T378] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003
[ 24.879985][ T378] RBP: 00007ffd7ec02be0 R08: 0000000000000002 R09: 0000000000000001
[ 24.888005][ T378] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
[ 24.895979][ T378] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 24.903933][ T378] ---[ end trace e94b7b9cb0473a19 ]---
[ 24.909389][ T378] ------------[ cut here ]------------
[ 24.914828][ T378] kernfs: can not remove 'events', no directory
[ 24.921128][ T378] WARNING: CPU: 0 PID: 378 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90
[ 24.930743][ T378] Modules linked in:
[ 24.934617][ T378] CPU: 0 PID: 378 Comm: syz-executor127 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0
[ 24.946377][ T378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 24.956456][ T378] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90
[ 24.962702][ T378] Code: 48 89 c3 e8 7d 5e 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 6c 5e 9b ff 48 c7 c7 40 fe 2c 85 4c 89 fe 31 c0 e8 4b a9 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 4d 5e 9b ff bb fe ff ff ff 48 c7 c7
[ 24.982343][ T378] RSP: 0018:ffffc90000b87ab8 EFLAGS: 00010246
[ 24.988435][ T378] RAX: a0995edf42a12a00 RBX: 0000000000000000 RCX: ffff8881067ecf00
[ 24.996412][ T378] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
[ 25.004372][ T378] RBP: ffffc90000b87ad0 R08: ffffffff8153b3c8 R09: fffff52000170e7d
[ 25.012357][ T378] R10: fffff52000170e7d R11: 1ffff92000170e7c R12: ffffffff86539060
[ 25.020337][ T378] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff8542f1c0
[ 25.028334][ T378] FS: 00005555558dd300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 25.037266][ T378] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 25.043834][ T378] CR2: 00007f2317984144 CR3: 0000000106bb1000 CR4: 00000000003506b0
[ 25.051826][ T378] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 25.059813][ T378] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 25.067797][ T378] Call Trace:
[ 25.071085][ T378] sysfs_create_files+0x40a/0x4a0
[ 25.076114][ T378] ? sysfs_create_file_ns+0x2a0/0x2a0
[ 25.081469][ T378] ? __kasan_check_write+0x14/0x20
[ 25.086583][ T378] ? kobject_get+0xd2/0x120
[ 25.091081][ T378] __device_add_disk+0x9cb/0x11d0
[ 25.096106][ T378] ? device_add_disk+0x40/0x40
[ 25.100872][ T378] ? vsprintf+0x40/0x40
[ 25.105003][ T378] device_add_disk+0x2a/0x40
[ 25.109607][ T378] loop_add+0x58f/0x760
[ 25.113752][ T378] loop_control_ioctl+0x564/0x740
[ 25.118786][ T378] ? loop_remove+0xb0/0xb0
[ 25.123196][ T378] ? __fdget_pos+0x27e/0x310
[ 25.127806][ T378] ? ksys_write+0x24e/0x2c0
[ 25.132301][ T378] ? security_file_ioctl+0xb1/0xd0
[ 25.137413][ T378] ? loop_remove+0xb0/0xb0
[ 25.141825][ T378] __se_sys_ioctl+0x115/0x190
[ 25.146509][ T378] __x64_sys_ioctl+0x7b/0x90
[ 25.151092][ T378] do_syscall_64+0x34/0x70
[ 25.155538][ T378] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 25.161437][ T378] RIP: 0033:0x7f231792c0c9
[ 25.165858][ T378] 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
[ 25.185472][ T378] RSP: 002b:00007ffd7ec02bc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 25.193914][ T378] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f231792c0c9
[ 25.201896][ T378] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003
[ 25.209871][ T378] RBP: 00007ffd7ec02be0 R08: 0000000000000002 R09: 0000000000000001
[ 25.217848][ T378] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004
[ 25.225829][ T378] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 25.233786][ T378] ---[ end trace e94b7b9cb0473a1a ]---
[ 25.239244][ T378] loop0: failed to create sysfs files for events
[ 25.245597][ T378] ------------[ cut here ]------------
[ 25.251065][ T378] kernfs: can not remove 'events', no directory
[ 25.257348][ T378] WARNING: CPU: 0 PID: 378 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90
[ 25.266886][ T378] Modules linked in:
[ 25.270789][ T378] CPU: 0 PID: 378 Comm: syz-executor127 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0
[ 25.282409][ T378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 25.292484][ T378] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90
[ 25.298636][ T378] Code: 48 89 c3 e8 7d 5e 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 6c 5e 9b ff 48 c7 c7 40 fe 2c 85 4c 89 fe 31 c0 e8 4b a9 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 4d 5e 9b ff bb fe ff ff ff 48 c7 c7
[ 25.318249][ T378] RSP: 0018:ffffc90000b87bf8 EFLAGS: 00010246
[ 25.324294][ T378] RAX: a0995edf42a12a00 RBX: 0000000000000000 RCX: ffff8881067ecf00
[ 25.332269][ T378] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
[ 25.340256][ T378] RBP: ffffc90000b87c10 R08: ffffffff8153b3c8 R09: ffffed103ee0a5d8
[ 25.348344][ T378] R10: ffffed103ee0a5d8 R11: 1ffff1103ee0a5d7 R12: 0000000000000000
[ 25.356319][ T378] R13: ffffffff86539060 R14: 0000000000000000 R15: ffffffff8542f1c0
[ 25.364266][ T378] FS: 00005555558dd300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 25.373195][ T378] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 25.379788][ T378] CR2: 00007f2317984144 CR3: 0000000106bb1000 CR4: 00000000003506b0
[ 25.387766][ T378] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 25.395757][ T378] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 25.403704][ T378] Call Trace:
[ 25.407002][ T378] sysfs_remove_files+0xab/0x110
[ 25.411939][ T378] del_gendisk+0x278/0xe20
[ 25.416361][ T378] ? device_add_disk_no_queue_reg+0x30/0x30
[ 25.422243][ T378] ? __radix_tree_delete+0x2ba/0x380
[ 25.427529][ T378] ? radix_tree_delete_item+0x261/0x360
[ 25.433064][ T378] loop_remove+0x46/0xb0
[ 25.437313][ T378] loop_control_ioctl+0x67f/0x740
[ 25.442329][ T378] ? do_sys_open+0x220/0x220
[ 25.446923][ T378] ? loop_remove+0xb0/0xb0
[ 25.451331][ T378] ? __fdget_pos+0x27e/0x310
[ 25.455923][ T378] ? security_file_ioctl+0xb1/0xd0
[ 25.461024][ T378] ? loop_remove+0xb0/0xb0
[ 25.465421][ T378] __se_sys_ioctl+0x115/0x190
[ 25.470099][ T378] __x64_sys_ioctl+0x7b/0x90
[ 25.474679][ T378] do_syscall_64+0x34/0x70
[ 25.479098][ T378] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 25.484970][ T378] RIP: 0033:0x7f231792c0c9
[ 25.489388][ T378] 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
[ 25.509025][ T378] RSP: 002b:00007ffd7ec02bc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 25.517440][ T378] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f231792c0c9
[ 25.525412][ T378] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000005
[ 25.533403][ T378] RBP: 00007ffd7ec02be0 R08: 0000000000000001 R09: 0000000000000001
[ 25.541386][ T378] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004
[ 25.549372][ T378] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 25.557350][ T378] ---[ end trace e94b7b9cb0473a1b ]---
[ 25.562780][ T378] ------------[ cut here ]------------
[ 25.568237][ T378] kernfs: can not remove 'events_async', no directory
[ 25.575033][ T378] WARNING: CPU: 0 PID: 378 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90
[ 25.584594][ T378] Modules linked in:
[ 25.588490][ T378] CPU: 0 PID: 378 Comm: syz-executor127 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0
[ 25.600108][ T378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 25.610179][ T378] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90
[ 25.616334][ T378] Code: 48 89 c3 e8 7d 5e 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 6c 5e 9b ff 48 c7 c7 40 fe 2c 85 4c 89 fe 31 c0 e8 4b a9 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 4d 5e 9b ff bb fe ff ff ff 48 c7 c7
[ 25.636104][ T378] RSP: 0018:ffffc90000b87bf8 EFLAGS: 00010246
[ 25.642145][ T378] RAX: a0995edf42a12a00 RBX: 0000000000000000 RCX: ffff8881067ecf00
[ 25.650131][ T378] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
[ 25.658124][ T378] RBP: ffffc90000b87c10 R08: ffffffff8153b3c8 R09: ffffed103ee0a5d8
[ 25.666101][ T378] R10: ffffed103ee0a5d8 R11: 1ffff1103ee0a5d7 R12: 0000000000000000
[ 25.674090][ T378] R13: ffffffff86539060 R14: 0000000000000000 R15: ffffffff8542f2a0
[ 25.682081][ T378] FS: 00005555558dd300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 25.691013][ T378] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 25.697603][ T378] CR2: 00007f2317984144 CR3: 0000000106bb1000 CR4: 00000000003506b0
[ 25.705560][ T378] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 25.713540][ T378] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 25.721510][ T378] Call Trace:
[ 25.724776][ T378] sysfs_remove_files+0xab/0x110
[ 25.729713][ T378] del_gendisk+0x278/0xe20
[ 25.734121][ T378] ? device_add_disk_no_queue_reg+0x30/0x30
[ 25.740017][ T378] ? __radix_tree_delete+0x2ba/0x380
[ 25.745398][ T378] ? radix_tree_delete_item+0x261/0x360
[ 25.750946][ T378] loop_remove+0x46/0xb0
[ 25.755181][ T378] loop_control_ioctl+0x67f/0x740
[ 25.760206][ T378] ? do_sys_open+0x220/0x220
[ 25.764785][ T378] ? loop_remove+0xb0/0xb0
[ 25.769203][ T378] ? __fdget_pos+0x27e/0x310
[ 25.773778][ T378] ? security_file_ioctl+0xb1/0xd0
[ 25.778899][ T378] ? loop_remove+0xb0/0xb0
[ 25.783306][ T378] __se_sys_ioctl+0x115/0x190
[ 25.788004][ T378] __x64_sys_ioctl+0x7b/0x90
[ 25.792584][ T378] do_syscall_64+0x34/0x70
[ 25.796999][ T378] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 25.802881][ T378] RIP: 0033:0x7f231792c0c9
[ 25.807296][ T378] 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
[ 25.826916][ T378] RSP: 002b:00007ffd7ec02bc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 25.835321][ T378] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f231792c0c9
[ 25.843310][ T378] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000005
[ 25.851330][ T378] RBP: 00007ffd7ec02be0 R08: 0000000000000001 R09: 0000000000000001
[ 25.859314][ T378] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004
[ 25.867296][ T378] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 25.875248][ T378] ---[ end trace e94b7b9cb0473a1c ]---
[ 25.880705][ T378] ------------[ cut here ]------------
[ 25.886171][ T378] kernfs: can not remove 'events_poll_msecs', no directory
[ 25.893385][ T378] WARNING: CPU: 0 PID: 378 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90
[ 25.902916][ T378] Modules linked in:
[ 25.906815][ T378] CPU: 0 PID: 378 Comm: syz-executor127 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0
[ 25.918449][ T378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 25.928542][ T378] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90
[ 25.934674][ T378] Code: 48 89 c3 e8 7d 5e 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 6c 5e 9b ff 48 c7 c7 40 fe 2c 85 4c 89 fe 31 c0 e8 4b a9 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 4d 5e 9b ff bb fe ff ff ff 48 c7 c7
[ 25.954301][ T378] RSP: 0018:ffffc90000b87bf8 EFLAGS: 00010246
[ 25.960385][ T378] RAX: a0995edf42a12a00 RBX: 0000000000000000 RCX: ffff8881067ecf00
[ 25.968360][ T378] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
[ 25.976364][ T378] RBP: ffffc90000b87c10 R08: ffffffff8153b3c8 R09: ffffed103ee04e83
[ 25.984319][ T378] R10: ffffed103ee04e83 R11: 1ffff1103ee04e82 R12: 0000000000000000
[ 25.992297][ T378] R13: ffffffff86539060 R14: 0000000000000000 R15: ffffffff8542f300
[ 26.000276][ T378] FS: 00005555558dd300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 26.009208][ T378] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 26.015811][ T378] CR2: 00007f2317984144 CR3: 0000000106bb1000 CR4: 00000000003506b0
[ 26.023775][ T378] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 26.031767][ T378] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 26.039744][ T378] Call Trace:
[ 26.043016][ T378] sysfs_remove_files+0xab/0x110
[ 26.047956][ T378] del_gendisk+0x278/0xe20
[ 26.052366][ T378] ? device_add_disk_no_queue_reg+0x30/0x30
[ 26.058278][ T378] ? __radix_tree_delete+0x2ba/0x380
[ 26.063561][ T378] ? radix_tree_delete_item+0x261/0x360
[ 26.069124][ T378] loop_remove+0x46/0xb0
[ 26.073363][ T378] loop_control_ioctl+0x67f/0x740
[ 26.078541][ T378] ? do_sys_open+0x220/0x220
[ 26.083132][ T378] ? loop_remove+0xb0/0xb0
[ 26.087559][ T378] ? __fdget_pos+0x27e/0x310
[ 26.092144][ T378] ? security_file_ioctl+0xb1/0xd0
[ 26.097262][ T378] ? loop_remove+0xb0/0xb0
[ 26.101670][ T378] __se_sys_ioctl+0x115/0x190
[ 26.106355][ T378] __x64_sys_ioctl+0x7b/0x90
[ 26.110930][ T378] do_syscall_64+0x34/0x70
[ 26.115325][ T378] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 26.121232][ T378] RIP: 0033:0x7f231792c0c9
[ 26.125636][ T378] 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
[ 26.145302][ T378] RSP: 002b:00007ffd7ec02bc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 26.153746][ T378] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f231792c0c9
[ 26.161718][ T378] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000005
[ 26.169697][ T378] RBP: 00007ffd7ec02be0 R08: 0000000000000001 R09: 0000000000000001
[ 26.177670][ T378] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004
[ 26.185616][ T378] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 26.193611][ T378] ---[ end trace e94b7b9cb0473a1d ]---
[ 26.199116][ T378] ------------[ cut here ]------------
[ 26.204555][ T378] kernfs: can not remove 'bdi', no directory
[ 26.210601][ T378] WARNING: CPU: 0 PID: 378 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90
[ 26.220139][ T378] Modules linked in:
[ 26.224014][ T378] CPU: 0 PID: 378 Comm: syz-executor127 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0
[ 26.235656][ T378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 26.245748][ T378] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90
[ 26.251875][ T378] Code: 48 89 c3 e8 7d 5e 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 6c 5e 9b ff 48 c7 c7 40 fe 2c 85 4c 89 fe 31 c0 e8 4b a9 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 4d 5e 9b ff bb fe ff ff ff 48 c7 c7
[ 26.271487][ T378] RSP: 0018:ffffc90000b87c18 EFLAGS: 00010246
[ 26.277552][ T378] RAX: a0995edf42a12a00 RBX: 0000000000000000 RCX: ffff8881067ecf00
[ 26.285499][ T378] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
[ 26.293471][ T378] RBP: ffffc90000b87c30 R08: ffffffff8153b3c8 R09: fffff52000170ea9
[ 26.301442][ T378] R10: fffff52000170ea9 R11: 1ffff92000170ea8 R12: 0000000000000240
[ 26.309425][ T378] R13: ffff8881061a2030 R14: 0000000000000000 R15: ffffffff8542eba0
[ 26.317407][ T378] FS: 00005555558dd300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 26.326332][ T378] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 26.332904][ T378] CR2: 00007f2317984144 CR3: 0000000106bb1000 CR4: 00000000003506b0
[ 26.340882][ T378] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 26.348855][ T378] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 26.356823][ T378] Call Trace:
[ 26.360129][ T378] sysfs_remove_link+0x50/0x60
[ 26.364869][ T378] del_gendisk+0x7cd/0xe20
[ 26.369322][ T378] ? device_add_disk_no_queue_reg+0x30/0x30
[ 26.375208][ T378] ? __radix_tree_delete+0x2ba/0x380
[ 26.380521][ T378] ? radix_tree_delete_item+0x261/0x360
[ 26.386070][ T378] loop_remove+0x46/0xb0
[ 26.390287][ T378] loop_control_ioctl+0x67f/0x740
[ 26.395284][ T378] ? do_sys_open+0x220/0x220
[ 26.399877][ T378] ? loop_remove+0xb0/0xb0
[ 26.404284][ T378] ? __fdget_pos+0x27e/0x310
[ 26.408878][ T378] ? security_file_ioctl+0xb1/0xd0
[ 26.413979][ T378] ? loop_remove+0xb0/0xb0
[ 26.418398][ T378] __se_sys_ioctl+0x115/0x190
[ 26.423066][ T378] __x64_sys_ioctl+0x7b/0x90
[ 26.427678][ T378] do_syscall_64+0x34/0x70
[ 26.432084][ T378] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 26.437975][ T378] RIP: 0033:0x7f231792c0c9
[ 26.442370][ T378] 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
[ 26.461984][ T378] RSP: 002b:00007ffd7ec02bc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 26.470420][ T378] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f231792c0c9
[ 26.478398][ T378] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000005
[ 26.486376][ T378] RBP: 00007ffd7ec02be0 R08: 0000000000000001 R09: 0000000000000001
[ 26.494326][ T378] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004
[ 26.502304][ T378] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 26.510284][ T378] ---[ end trace e94b7b9cb0473a1e ]---
[ 26.516037][ T378] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
[ 26.527738][ T378] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
[ 26.536123][ T378] CPU: 0 PID: 378 Comm: syz-executor127 Tainted: G W 5.10.109-syzkaller-00693-g414e6c8e941c #0
[ 26.547768][ T378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 26.557812][ T378] RIP: 0010:strlen+0x3a/0x80
[ 26.562375][ T378] Code: c0 ff ff ff ff 49 bf 00 00 00 00 00 fc ff df 48 89 fb 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 49 89 c4 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 75 12 48 ff c3 49 8d 44 24 01 43 80 7c 26 01
[ 26.581956][ T378] RSP: 0018:ffffc90000b87b68 EFLAGS: 00010246
[ 26.587999][ T378] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8881067ecf00
[ 26.595945][ T378] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 26.603890][ T378] RBP: ffffc90000b87b88 R08: ffffffff81d12c3c R09: fffff52000170f75
[ 26.611834][ T378] R10: fffff52000170f75 R11: 1ffff92000170f74 R12: ffffffffffffffff
[ 26.619782][ T378] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 26.627735][ T378] FS: 00005555558dd300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 26.636653][ T378] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 26.643210][ T378] CR2: 00007f2317984144 CR3: 0000000106bb1000 CR4: 00000000003506b0
[ 26.651161][ T378] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 26.659109][ T378] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 26.667053][ T378] Call Trace:
[ 26.670325][ T378] kernfs_name_hash+0x21/0x240
[ 26.675058][ T378] kernfs_find_ns+0x72/0x280
[ 26.679629][ T378] kernfs_remove_by_name_ns+0x36/0x90
[ 26.684993][ T378] sysfs_remove_link+0x50/0x60
[ 26.689733][ T378] del_gendisk+0xbe0/0xe20
[ 26.694121][ T378] ? device_add_disk_no_queue_reg+0x30/0x30
[ 26.699986][ T378] ? __radix_tree_delete+0x2ba/0x380
[ 26.705245][ T378] ? radix_tree_delete_item+0x261/0x360
[ 26.710815][ T378] loop_remove+0x46/0xb0
[ 26.715035][ T378] loop_control_ioctl+0x67f/0x740
[ 26.720031][ T378] ? do_sys_open+0x220/0x220
[ 26.724593][ T378] ? loop_remove+0xb0/0xb0
[ 26.728983][ T378] ? __fdget_pos+0x27e/0x310
[ 26.733549][ T378] ? security_file_ioctl+0xb1/0xd0
[ 26.738630][ T378] ? loop_remove+0xb0/0xb0
[ 26.743019][ T378] __se_sys_ioctl+0x115/0x190
[ 26.747670][ T378] __x64_sys_ioctl+0x7b/0x90
[ 26.752232][ T378] do_syscall_64+0x34/0x70
[ 26.756638][ T378] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 26.762500][ T378] RIP: 0033:0x7f231792c0c9
[ 26.766887][ T378] 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
[ 26.786464][ T378] RSP: 002b:00007ffd7ec02bc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 26.794851][ T378] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f231792c0c9
[ 26.802797][ T378] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000005
[ 26.810758][ T378] RBP: 00007ffd7ec02be0 R08: 0000000000000001 R09: 0000000000000001
[ 26.818703][ T378] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004
[ 26.826650][ T378] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000
[ 26.834592][ T378] Modules linked in:
[ 26.838562][ T378] ---[ end trace e94b7b9cb0473a1f ]---
[ 26.844018][ T378] RIP: 0010:strlen+0x3a/0x80
[ 26.848641][ T378] Code: c0 ff ff ff ff 49 bf 00 00 00 00 00 fc ff df 48 89 fb 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 49 89 c4 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 75 12 48 ff c3 49 8d 44 24 01 43 80 7c 26 01
[ 26.868275][ T378] RSP: 0018:ffffc90000b87b68 EFLAGS: 00010246
[ 26.874347][ T378] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8881067ecf00
[ 26.882350][ T378] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 26.890466][ T378] RBP: ffffc90000b87b88 R08: ffffffff81d12c3c R09: fffff52000170f75
[ 26.898484][ T378] R10: fffff52000170f75 R11: 1ffff92000170f74 R12: ffffffffffffffff
[ 26.906549][ T378] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000
[ 26.914515][ T378] FS: 00005555558dd300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
[ 26.923455][ T378] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 26.930043][ T378] CR2: 00007f2317984144 CR3: 0000000106bb1000 CR4: 00000000003506b0
[ 26.938026][ T378] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 26.945999][ T378] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 26.953969][ T378] Kernel panic - not syncing: Fatal exception
[ 26.960191][ T378] Kernel Offset: disabled
[ 26.964500][ T378] Rebooting in 86400 seconds..