./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2804115465 <...> syzkaller syzkaller login: [ 4.647849][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 11.015680][ T23] kauditd_printk_skb: 60 callbacks suppressed [ 11.015686][ T23] audit: type=1400 audit(1654512094.479:71): 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 [ 11.021174][ T23] audit: type=1400 audit(1654512094.489:72): avc: denied { write } for pid=289 comm="sh" path="pipe:[10800]" dev="pipefs" ino=10800 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 [ 11.159123][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #82!!! [ 11.162812][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #82!!! [ 11.165478][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #82!!! [ 12.307799][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #c0!!! Warning: Permanently added '10.128.1.101' (ECDSA) to the list of known hosts. execve("./syz-executor2804115465", ["./syz-executor2804115465"], 0x7ffcea82f4f0 /* 10 vars */) = 0 brk(NULL) = 0x555556061000 brk(0x555556061c40) = 0x555556061c40 arch_prctl(ARCH_SET_FS, 0x555556061300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2804115465", 4096) = 28 brk(0x555556082c40) = 0x555556082c40 brk(0x555556083000) = 0x555556083000 mprotect(0x7f9738200000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 openat(AT_FDCWD, "/sys/kernel/debug/failslab/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_futex/ignore-private", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/min-order", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 372 attached , child_tidptr=0x5555560615d0) = 372 [pid 372] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 372] setpgid(0, 0) = 0 [pid 372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 372] write(3, "1000", 4) = 4 [pid 372] close(3) = 0 [pid 372] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 372] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 372] write(4, "72", 2) = 2 [pid 372] ioctl(3, LOOP_CTL_ADD, 0) = -1 EEXIST (File exists) [pid 372] ioctl(3, LOOP_CTL_REMOVE, 0) = 0 [pid 372] exit_group(0) = ? [pid 372] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=372, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555560615d0) = 375 ./strace-static-x86_64: Process 375 attached [pid 375] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 375] setpgid(0, 0) = 0 [pid 375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 375] write(3, "1000", 4) = 4 [pid 375] close(3) = 0 [pid 375] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 375] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 375] write(4, "72", 2) = 2 [ 18.598228][ T23] audit: type=1400 audit(1654512102.069:73): avc: denied { execmem } for pid=371 comm="syz-executor280" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 18.604019][ T23] audit: type=1400 audit(1654512102.069:74): avc: denied { read } for pid=372 comm="syz-executor280" 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 [ 18.607828][ T23] audit: type=1400 audit(1654512102.069:75): avc: denied { open } for pid=372 comm="syz-executor280" 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 [ 18.611557][ T23] audit: type=1400 audit(1654512102.069:76): avc: denied { ioctl } for pid=372 comm="syz-executor280" 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 [ 18.643527][ T375] FAULT_INJECTION: forcing a failure. [ 18.643527][ T375] name failslab, interval 1, probability 0, space 0, times 1 [ 18.656220][ T375] CPU: 0 PID: 375 Comm: syz-executor280 Not tainted 5.10.117-syzkaller-00814-gfdd06dc6b0f8 #0 [ 18.666438][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.676481][ T375] Call Trace: [ 18.679750][ T375] dump_stack_lvl+0x1e2/0x24b [ 18.684400][ T375] ? panic+0x7d7/0x7d7 [ 18.688450][ T375] ? bfq_pos_tree_add_move+0x43e/0x43e [ 18.693892][ T375] dump_stack+0x15/0x17 [ 18.698021][ T375] should_fail+0x3c0/0x510 [ 18.702410][ T375] __should_failslab+0x9f/0xe0 [ 18.707146][ T375] should_failslab+0x9/0x20 [ 18.711624][ T375] kmem_cache_alloc+0x3f/0x300 [ 18.716370][ T375] ? __kernfs_new_node+0xdb/0x6e0 [ 18.721364][ T375] __kernfs_new_node+0xdb/0x6e0 [ 18.726192][ T375] ? stack_trace_save+0x12d/0x1f0 [ 18.731186][ T375] ? kernfs_new_node+0x170/0x170 [ 18.736092][ T375] ? stack_trace_snprint+0x100/0x100 [ 18.741348][ T375] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 18.747125][ T375] ? stack_depot_save+0x433/0x4a0 [ 18.752122][ T375] ? device_add+0xbe/0xbd0 [ 18.756510][ T375] kernfs_create_dir_ns+0x9b/0x230 [ 18.761606][ T375] sysfs_create_dir_ns+0x181/0x390 [ 18.766688][ T375] ? sysfs_warn_dup+0xa0/0xa0 [ 18.771341][ T375] kobject_add_internal+0x766/0xda0 [ 18.776515][ T375] kobject_add+0x14c/0x210 [ 18.780906][ T375] ? _raw_spin_lock+0xa3/0x1b0 [ 18.785639][ T375] ? kobject_init+0x1e0/0x1e0 [ 18.790364][ T375] ? __kasan_check_write+0x14/0x20 [ 18.795459][ T375] ? mutex_unlock+0x1d/0x40 [ 18.799958][ T375] ? get_device_parent+0x2c5/0x430 [ 18.805060][ T375] device_add+0x3ca/0xbd0 [ 18.809369][ T375] __device_add_disk+0x77d/0x11d0 [ 18.814369][ T375] ? device_add_disk+0x40/0x40 [ 18.819105][ T375] ? vsprintf+0x40/0x40 [ 18.823243][ T375] device_add_disk+0x2a/0x40 [ 18.827836][ T375] loop_add+0x58f/0x760 [ 18.831990][ T375] loop_control_ioctl+0x564/0x740 [ 18.836993][ T375] ? loop_remove+0xb0/0xb0 [ 18.841386][ T375] ? _raw_spin_unlock_irq+0x4e/0x70 [ 18.846577][ T375] ? ptrace_notify+0x248/0x340 [ 18.851323][ T375] ? do_notify_parent+0xa60/0xa60 [ 18.856327][ T375] ? __fpregs_load_activate+0x1e7/0x370 [ 18.861848][ T375] ? security_file_ioctl+0xb1/0xd0 [ 18.866933][ T375] ? loop_remove+0xb0/0xb0 [ 18.871325][ T375] __se_sys_ioctl+0x115/0x190 [ 18.875979][ T375] __x64_sys_ioctl+0x7b/0x90 [ 18.880557][ T375] do_syscall_64+0x34/0x70 [ 18.884958][ T375] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 18.890831][ T375] RIP: 0033:0x7f9738193069 [ 18.895229][ 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 [ 18.914849][ T375] RSP: 002b:00007ffe54da8a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 18.923235][ T375] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9738193069 [ 18.931363][ T375] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 18.939308][ T375] RBP: 00007ffe54da8a70 R08: 0000000000000002 R09: 0000000000000001 [ 18.947254][ T375] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 18.955200][ T375] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 18.963705][ T375] kobject_add_internal failed for loop0 (error: -12 parent: block) [ 18.971685][ T375] kobject_add_internal failed for queue (error: -2 parent: loop0) [ 18.979621][ T375] ------------[ cut here ]------------ [ 18.985074][ T375] WARNING: CPU: 0 PID: 375 at fs/sysfs/file.c:328 sysfs_create_files+0x215/0x4a0 [ 18.994182][ T375] Modules linked in: [ 18.998125][ T375] CPU: 0 PID: 375 Comm: syz-executor280 Not tainted 5.10.117-syzkaller-00814-gfdd06dc6b0f8 #0 [ 19.008358][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.018423][ T375] RIP: 0010:sysfs_create_files+0x215/0x4a0 [ 19.024223][ T375] 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 ab f0 9a ff <0f> 0b c7 44 24 04 ea ff ff ff 48 b9 00 00 00 00 00 fc ff df 48 8b [ 19.043845][ T375] RSP: 0018:ffffc9000032fae0 EFLAGS: 00010293 [ 19.049936][ T375] RAX: ffffffff81d1c221 RBX: ffff8881063e5098 RCX: ffff8881002d13c0 [ 19.057911][ T375] RDX: 0000000000000000 RSI: ffffffff86539560 RDI: ffff8881063e5068 [ 19.065867][ T375] RBP: ffffc9000032fbb0 R08: ffffffff826b9748 R09: ffffed102147d69c [ 19.073840][ T375] R10: ffffed102147d69c R11: 1ffff1102147d69b R12: 0000000000000000 [ 19.081815][ T375] R13: ffffffff854304a0 R14: ffff8881063e5068 R15: ffffffff86539560 [ 19.089794][ T375] FS: 0000555556061300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 19.098726][ T375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.105286][ T375] CR2: 00007f97381c29a0 CR3: 0000000106993000 CR4: 00000000003506b0 [ 19.113284][ T375] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.121279][ T375] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.129278][ T375] Call Trace: [ 19.132566][ T375] ? sysfs_create_file_ns+0x2a0/0x2a0 [ 19.137943][ T375] ? __kasan_check_write+0x14/0x20 [ 19.143043][ T375] ? kobject_get+0xd2/0x120 [ 19.147520][ T375] __device_add_disk+0x9cb/0x11d0 [ 19.152548][ T375] ? device_add_disk+0x40/0x40 [ 19.157314][ T375] ? vsprintf+0x40/0x40 [ 19.161474][ T375] device_add_disk+0x2a/0x40 [ 19.166055][ T375] loop_add+0x58f/0x760 [ 19.170230][ T375] loop_control_ioctl+0x564/0x740 [ 19.175252][ T375] ? loop_remove+0xb0/0xb0 [ 19.179672][ T375] ? _raw_spin_unlock_irq+0x4e/0x70 [ 19.184865][ T375] ? ptrace_notify+0x248/0x340 [ 19.189647][ T375] ? do_notify_parent+0xa60/0xa60 [ 19.194664][ T375] ? __fpregs_load_activate+0x1e7/0x370 [ 19.200213][ T375] ? security_file_ioctl+0xb1/0xd0 [ 19.205320][ T375] ? loop_remove+0xb0/0xb0 [ 19.209763][ T375] __se_sys_ioctl+0x115/0x190 [ 19.214490][ T375] __x64_sys_ioctl+0x7b/0x90 [ 19.219191][ T375] do_syscall_64+0x34/0x70 [ 19.223606][ T375] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.229571][ T375] RIP: 0033:0x7f9738193069 [ 19.233988][ 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 [ 19.253624][ T375] RSP: 002b:00007ffe54da8a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 19.262057][ T375] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9738193069 [ 19.270045][ T375] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 19.278041][ T375] RBP: 00007ffe54da8a70 R08: 0000000000000002 R09: 0000000000000001 [ 19.285988][ T375] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 19.294188][ T375] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 19.302386][ T375] ---[ end trace f1b15810f8082eac ]--- [ 19.307985][ T375] ------------[ cut here ]------------ [ 19.313482][ T375] kernfs: can not remove 'events', no directory [ 19.319921][ T375] WARNING: CPU: 1 PID: 375 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90 [ 19.329624][ T375] Modules linked in: [ 19.333586][ T375] CPU: 1 PID: 375 Comm: syz-executor280 Tainted: G W 5.10.117-syzkaller-00814-gfdd06dc6b0f8 #0 [ 19.345360][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.355568][ T375] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 19.361904][ T375] Code: 48 89 c3 e8 fd 4e 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 ec 4e 9b ff 48 c7 c7 c0 0a 2d 85 4c 89 fe 31 c0 e8 3b 89 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 cd 4e 9b ff bb fe ff ff ff 48 c7 c7 [ 19.381636][ T375] RSP: 0018:ffffc9000032fab8 EFLAGS: 00010246 [ 19.387753][ T375] RAX: 002bf10c187d7b00 RBX: 0000000000000000 RCX: ffff8881002d13c0 [ 19.395713][ T375] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 19.403717][ T375] RBP: ffffc9000032fad0 R08: ffffffff8153a998 R09: ffffed103ee2a5d8 [ 19.411697][ T375] R10: ffffed103ee2a5d8 R11: 1ffff1103ee2a5d7 R12: ffffffff86539560 [ 19.419672][ T375] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff85430480 [ 19.427631][ T375] FS: 0000555556061300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 19.436563][ T375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.443144][ T375] CR2: 00007f97381c29a0 CR3: 0000000106993000 CR4: 00000000003506b0 [ 19.451136][ T375] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.459123][ T375] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.467067][ T375] Call Trace: [ 19.470387][ T375] sysfs_create_files+0x40a/0x4a0 [ 19.475420][ T375] ? sysfs_create_file_ns+0x2a0/0x2a0 [ 19.480799][ T375] ? __kasan_check_write+0x14/0x20 [ 19.485900][ T375] ? kobject_get+0xd2/0x120 [ 19.490409][ T375] __device_add_disk+0x9cb/0x11d0 [ 19.495431][ T375] ? device_add_disk+0x40/0x40 [ 19.500205][ T375] ? vsprintf+0x40/0x40 [ 19.504366][ T375] device_add_disk+0x2a/0x40 [ 19.508956][ T375] loop_add+0x58f/0x760 [ 19.513189][ T375] loop_control_ioctl+0x564/0x740 [ 19.518219][ T375] ? loop_remove+0xb0/0xb0 [ 19.522630][ T375] ? _raw_spin_unlock_irq+0x4e/0x70 [ 19.527833][ T375] ? ptrace_notify+0x248/0x340 [ 19.532587][ T375] ? do_notify_parent+0xa60/0xa60 [ 19.537584][ T375] ? __fpregs_load_activate+0x1e7/0x370 [ 19.543127][ T375] ? security_file_ioctl+0xb1/0xd0 [ 19.548240][ T375] ? loop_remove+0xb0/0xb0 [ 19.552630][ T375] __se_sys_ioctl+0x115/0x190 [ 19.557297][ T375] __x64_sys_ioctl+0x7b/0x90 [ 19.561912][ T375] do_syscall_64+0x34/0x70 [ 19.566328][ T375] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.572219][ T375] RIP: 0033:0x7f9738193069 [ 19.576625][ 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 [ 19.596252][ T375] RSP: 002b:00007ffe54da8a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 19.604706][ T375] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9738193069 [ 19.612674][ T375] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 19.620644][ T375] RBP: 00007ffe54da8a70 R08: 0000000000000002 R09: 0000000000000001 [ 19.628628][ T375] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 19.636587][ T375] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 375] ioctl(3, LOOP_CTL_ADD, 0) = 0 [ 19.644564][ T375] ---[ end trace f1b15810f8082ead ]--- [ 19.650022][ T375] loop0: failed to create sysfs files for events [ 19.656459][ T375] ------------[ cut here ]------------ [ 19.662017][ T375] kernfs: can not remove 'events', no directory [ 19.668424][ T375] WARNING: CPU: 1 PID: 375 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90 [ 19.678097][ T375] Modules linked in: [ 19.682057][ T375] CPU: 1 PID: 375 Comm: syz-executor280 Tainted: G W 5.10.117-syzkaller-00814-gfdd06dc6b0f8 #0 [ 19.693780][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 19.703902][ T375] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 19.710200][ T375] Code: 48 89 c3 e8 fd 4e 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 ec 4e 9b ff 48 c7 c7 c0 0a 2d 85 4c 89 fe 31 c0 e8 3b 89 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 cd 4e 9b ff bb fe ff ff ff 48 c7 c7 [ 19.730025][ T375] RSP: 0018:ffffc9000032fbf8 EFLAGS: 00010246 [ 19.736072][ T375] RAX: 002bf10c187d7b00 RBX: 0000000000000000 RCX: ffff8881002d13c0 [ 19.744178][ T375] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 19.752231][ T375] RBP: ffffc9000032fc10 R08: ffffffff8153a998 R09: ffffed103ee2a5d8 [ 19.760276][ T375] R10: ffffed103ee2a5d8 R11: 1ffff1103ee2a5d7 R12: 0000000000000000 [ 19.768316][ T375] R13: ffffffff86539560 R14: 0000000000000000 R15: ffffffff85430480 [ 19.776270][ T375] FS: 0000555556061300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 19.785298][ T375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.791943][ T375] CR2: 00007f97381c29a0 CR3: 0000000106993000 CR4: 00000000003506b0 [ 19.799977][ T375] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.808006][ T375] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.815960][ T375] Call Trace: [ 19.819315][ T375] sysfs_remove_files+0xab/0x110 [ 19.824239][ T375] del_gendisk+0x278/0xe20 [ 19.828738][ T375] ? device_add_disk_no_queue_reg+0x30/0x30 [ 19.834617][ T375] ? __radix_tree_delete+0x2ba/0x380 [ 19.839982][ T375] ? radix_tree_delete_item+0x261/0x360 [ 19.845514][ T375] loop_remove+0x46/0xb0 [ 19.849846][ T375] loop_control_ioctl+0x67f/0x740 [ 19.854856][ T375] ? loop_remove+0xb0/0xb0 [ 19.859276][ T375] ? _raw_spin_unlock_irq+0x4e/0x70 [ 19.864481][ T375] ? ptrace_notify+0x248/0x340 [ 19.869244][ T375] ? do_notify_parent+0xa60/0xa60 [ 19.874259][ T375] ? __fpregs_load_activate+0x1e7/0x370 [ 19.879814][ T375] ? security_file_ioctl+0xb1/0xd0 [ 19.884917][ T375] ? loop_remove+0xb0/0xb0 [ 19.889333][ T375] __se_sys_ioctl+0x115/0x190 [ 19.894015][ T375] __x64_sys_ioctl+0x7b/0x90 [ 19.898603][ T375] do_syscall_64+0x34/0x70 [ 19.903011][ T375] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.908906][ T375] RIP: 0033:0x7f9738193069 [ 19.913316][ 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 [ 19.933015][ T375] RSP: 002b:00007ffe54da8a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 19.941478][ T375] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9738193069 [ 19.949451][ T375] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 19.957427][ T375] RBP: 00007ffe54da8a70 R08: 0000000000000001 R09: 0000000000000001 [ 19.965400][ T375] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000004 [ 19.973376][ T375] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 19.981629][ T375] ---[ end trace f1b15810f8082eae ]--- [ 19.987082][ T375] ------------[ cut here ]------------ [ 19.992532][ T375] kernfs: can not remove 'events_async', no directory [ 19.999351][ T375] WARNING: CPU: 0 PID: 375 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90 [ 20.008894][ T375] Modules linked in: [ 20.012792][ T375] CPU: 0 PID: 375 Comm: syz-executor280 Tainted: G W 5.10.117-syzkaller-00814-gfdd06dc6b0f8 #0 [ 20.024419][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.034558][ T375] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 20.040711][ T375] Code: 48 89 c3 e8 fd 4e 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 ec 4e 9b ff 48 c7 c7 c0 0a 2d 85 4c 89 fe 31 c0 e8 3b 89 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 cd 4e 9b ff bb fe ff ff ff 48 c7 c7 [ 20.060510][ T375] RSP: 0018:ffffc9000032fbf8 EFLAGS: 00010246 [ 20.066568][ T375] RAX: 002bf10c187d7b00 RBX: 0000000000000000 RCX: ffff8881002d13c0 [ 20.074542][ T375] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 20.082527][ T375] RBP: ffffc9000032fc10 R08: ffffffff8153a998 R09: ffffed103ee0a5d8 [ 20.090505][ T375] R10: ffffed103ee0a5d8 R11: 1ffff1103ee0a5d7 R12: 0000000000000000 [ 20.098503][ T375] R13: ffffffff86539560 R14: 0000000000000000 R15: ffffffff85430560 [ 20.106452][ T375] FS: 0000555556061300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 20.115396][ T375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.121981][ T375] CR2: 00007f97381c29a0 CR3: 0000000106993000 CR4: 00000000003506b0 [ 20.130393][ T375] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.138367][ T375] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.146327][ T375] Call Trace: [ 20.149629][ T375] sysfs_remove_files+0xab/0x110 [ 20.154566][ T375] del_gendisk+0x278/0xe20 [ 20.158985][ T375] ? device_add_disk_no_queue_reg+0x30/0x30 [ 20.164867][ T375] ? __radix_tree_delete+0x2ba/0x380 [ 20.170151][ T375] ? radix_tree_delete_item+0x261/0x360 [ 20.175691][ T375] loop_remove+0x46/0xb0 [ 20.179958][ T375] loop_control_ioctl+0x67f/0x740 [ 20.184975][ T375] ? loop_remove+0xb0/0xb0 [ 20.189391][ T375] ? _raw_spin_unlock_irq+0x4e/0x70 [ 20.194597][ T375] ? ptrace_notify+0x248/0x340 [ 20.199362][ T375] ? do_notify_parent+0xa60/0xa60 [ 20.204379][ T375] ? __fpregs_load_activate+0x1e7/0x370 [ 20.209957][ T375] ? security_file_ioctl+0xb1/0xd0 [ 20.215058][ T375] ? loop_remove+0xb0/0xb0 [ 20.219492][ T375] __se_sys_ioctl+0x115/0x190 [ 20.224177][ T375] __x64_sys_ioctl+0x7b/0x90 [ 20.228853][ T375] do_syscall_64+0x34/0x70 [ 20.233266][ T375] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.239262][ T375] RIP: 0033:0x7f9738193069 [ 20.243661][ 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 [ 20.263461][ T375] RSP: 002b:00007ffe54da8a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.271889][ T375] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9738193069 [ 20.279870][ T375] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 20.287843][ T375] RBP: 00007ffe54da8a70 R08: 0000000000000001 R09: 0000000000000001 [ 20.295800][ T375] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000004 [ 20.303807][ T375] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.311819][ T375] ---[ end trace f1b15810f8082eaf ]--- [ 20.317403][ T375] ------------[ cut here ]------------ [ 20.322875][ T375] kernfs: can not remove 'events_poll_msecs', no directory [ 20.330157][ T375] WARNING: CPU: 0 PID: 375 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90 [ 20.339696][ T375] Modules linked in: [ 20.343597][ T375] CPU: 0 PID: 375 Comm: syz-executor280 Tainted: G W 5.10.117-syzkaller-00814-gfdd06dc6b0f8 #0 [ 20.355240][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.365405][ T375] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 20.371570][ T375] Code: 48 89 c3 e8 fd 4e 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 ec 4e 9b ff 48 c7 c7 c0 0a 2d 85 4c 89 fe 31 c0 e8 3b 89 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 cd 4e 9b ff bb fe ff ff ff 48 c7 c7 [ 20.391184][ T375] RSP: 0018:ffffc9000032fbf8 EFLAGS: 00010246 [ 20.397241][ T375] RAX: 002bf10c187d7b00 RBX: 0000000000000000 RCX: ffff8881002d13c0 [ 20.405217][ T375] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 20.413191][ T375] RBP: ffffc9000032fc10 R08: ffffffff8153a998 R09: ffffed103ee0a5d8 [ 20.421159][ T375] R10: ffffed103ee0a5d8 R11: 1ffff1103ee0a5d7 R12: 0000000000000000 [ 20.429126][ T375] R13: ffffffff86539560 R14: 0000000000000000 R15: ffffffff854305c0 [ 20.437096][ T375] FS: 0000555556061300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 20.446022][ T375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.452610][ T375] CR2: 00007f97381c29a0 CR3: 0000000106993000 CR4: 00000000003506b0 [ 20.460596][ T375] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.468567][ T375] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.476510][ T375] Call Trace: [ 20.479797][ T375] sysfs_remove_files+0xab/0x110 [ 20.484719][ T375] del_gendisk+0x278/0xe20 [ 20.489167][ T375] ? device_add_disk_no_queue_reg+0x30/0x30 [ 20.495046][ T375] ? __radix_tree_delete+0x2ba/0x380 [ 20.500331][ T375] ? radix_tree_delete_item+0x261/0x360 [ 20.505865][ T375] loop_remove+0x46/0xb0 [ 20.510121][ T375] loop_control_ioctl+0x67f/0x740 [ 20.515144][ T375] ? loop_remove+0xb0/0xb0 [ 20.519559][ T375] ? _raw_spin_unlock_irq+0x4e/0x70 [ 20.524747][ T375] ? ptrace_notify+0x248/0x340 [ 20.529515][ T375] ? do_notify_parent+0xa60/0xa60 [ 20.534526][ T375] ? __fpregs_load_activate+0x1e7/0x370 [ 20.540087][ T375] ? security_file_ioctl+0xb1/0xd0 [ 20.545182][ T375] ? loop_remove+0xb0/0xb0 [ 20.549608][ T375] __se_sys_ioctl+0x115/0x190 [ 20.554268][ T375] __x64_sys_ioctl+0x7b/0x90 [ 20.558859][ T375] do_syscall_64+0x34/0x70 [ 20.563275][ T375] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.569181][ T375] RIP: 0033:0x7f9738193069 [ 20.573603][ 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 [ 20.593211][ T375] RSP: 002b:00007ffe54da8a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.601632][ T375] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9738193069 [ 20.609607][ T375] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 20.617567][ T375] RBP: 00007ffe54da8a70 R08: 0000000000000001 R09: 0000000000000001 [ 20.625572][ T375] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000004 [ 20.633547][ T375] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.641518][ T375] ---[ end trace f1b15810f8082eb0 ]--- [ 20.647004][ T375] ------------[ cut here ]------------ [ 20.652457][ T375] kernfs: can not remove 'bdi', no directory [ 20.658480][ T375] WARNING: CPU: 0 PID: 375 at fs/kernfs/dir.c:1508 kernfs_remove_by_name_ns+0x65/0x90 [ 20.668024][ T375] Modules linked in: [ 20.671929][ T375] CPU: 0 PID: 375 Comm: syz-executor280 Tainted: G W 5.10.117-syzkaller-00814-gfdd06dc6b0f8 #0 [ 20.683558][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 20.693622][ T375] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 20.699773][ T375] Code: 48 89 c3 e8 fd 4e 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 ec 4e 9b ff 48 c7 c7 c0 0a 2d 85 4c 89 fe 31 c0 e8 3b 89 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 cd 4e 9b ff bb fe ff ff ff 48 c7 c7 [ 20.719379][ T375] RSP: 0018:ffffc9000032fc18 EFLAGS: 00010246 [ 20.725437][ T375] RAX: 002bf10c187d7b00 RBX: 0000000000000000 RCX: ffff8881002d13c0 [ 20.733408][ T375] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 20.741471][ T375] RBP: ffffc9000032fc30 R08: ffffffff8153a998 R09: ffffed103ee0a5d8 [ 20.749450][ T375] R10: ffffed103ee0a5d8 R11: 1ffff1103ee0a5d7 R12: 0000000000000240 [ 20.757409][ T375] R13: ffff8881063e5030 R14: 0000000000000000 R15: ffffffff8542fe60 [ 20.765430][ T375] FS: 0000555556061300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 20.774355][ T375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.780936][ T375] CR2: 00007f97381c29a0 CR3: 0000000106993000 CR4: 00000000003506b0 [ 20.788913][ T375] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.796862][ T375] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.804838][ T375] Call Trace: [ 20.808168][ T375] sysfs_remove_link+0x50/0x60 [ 20.812924][ T375] del_gendisk+0x7cd/0xe20 [ 20.817315][ T375] ? device_add_disk_no_queue_reg+0x30/0x30 [ 20.823220][ T375] ? __radix_tree_delete+0x2ba/0x380 [ 20.828520][ T375] ? radix_tree_delete_item+0x261/0x360 [ 20.834038][ T375] loop_remove+0x46/0xb0 [ 20.838284][ T375] loop_control_ioctl+0x67f/0x740 [ 20.843304][ T375] ? loop_remove+0xb0/0xb0 [ 20.847724][ T375] ? _raw_spin_unlock_irq+0x4e/0x70 [ 20.852932][ T375] ? ptrace_notify+0x248/0x340 [ 20.857689][ T375] ? do_notify_parent+0xa60/0xa60 [ 20.862709][ T375] ? __fpregs_load_activate+0x1e7/0x370 [ 20.868250][ T375] ? security_file_ioctl+0xb1/0xd0 [ 20.873334][ T375] ? loop_remove+0xb0/0xb0 [ 20.881919][ T375] __se_sys_ioctl+0x115/0x190 [ 20.886586][ T375] __x64_sys_ioctl+0x7b/0x90 [ 20.891191][ T375] do_syscall_64+0x34/0x70 [ 20.895620][ T375] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.901511][ T375] RIP: 0033:0x7f9738193069 [ 20.905919][ 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 [ 20.925529][ T375] RSP: 002b:00007ffe54da8a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.933990][ T375] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9738193069 [ 20.941973][ T375] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 20.949948][ T375] RBP: 00007ffe54da8a70 R08: 0000000000000001 R09: 0000000000000001 [ 20.957927][ T375] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000004 [ 20.965891][ T375] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.973865][ T375] ---[ end trace f1b15810f8082eb1 ]--- [ 20.979588][ T375] general protection fault, probably for non-canonical address 0xdffffc000000001a: 0000 [#1] PREEMPT SMP KASAN [ 20.991289][ T375] KASAN: null-ptr-deref in range [0x00000000000000d0-0x00000000000000d7] [ 20.999689][ T375] CPU: 0 PID: 375 Comm: syz-executor280 Tainted: G W 5.10.117-syzkaller-00814-gfdd06dc6b0f8 #0 [ 21.011293][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 21.021464][ T375] RIP: 0010:device_del+0xdf/0xf00 [ 21.026566][ T375] Code: 20 42 80 3c 28 00 74 08 48 89 df e8 fb 19 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 [ 21.046157][ T375] RSP: 0018:ffffc9000032fb60 EFLAGS: 00010202 [ 21.052204][ T375] RAX: 1ffff11020c7ca1a RBX: ffff8881063e50d0 RCX: ffffffff84925806 [ 21.060161][ T375] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc9000032fae0 [ 21.068107][ T375] RBP: ffffc9000032fc50 R08: dffffc0000000000 R09: fffff52000065f5d [ 21.076054][ T375] R10: fffff52000065f5d R11: 1ffff92000065f5c R12: 000000000000001a [ 21.083998][ T375] R13: dffffc0000000000 R14: ffff8881063e5108 R15: 00000000000000d0 [ 21.091945][ T375] FS: 0000555556061300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 21.100845][ T375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.107403][ T375] CR2: 00007f97381c29a0 CR3: 0000000106993000 CR4: 00000000003506b0 [ 21.115358][ T375] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.123304][ T375] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.131255][ T375] Call Trace: [ 21.134521][ T375] ? _raw_spin_lock_irqsave+0x210/0x210 [ 21.140039][ T375] ? kernfs_name_hash+0x1f9/0x240 [ 21.145046][ T375] ? kill_device+0xd0/0xd0 [ 21.149445][ T375] ? mutex_unlock+0x1d/0x40 [ 21.153922][ T375] del_gendisk+0xbf2/0xe20 [ 21.158322][ T375] ? device_add_disk_no_queue_reg+0x30/0x30 [ 21.164189][ T375] ? __radix_tree_delete+0x2ba/0x380 [ 21.169532][ T375] ? radix_tree_delete_item+0x261/0x360 [ 21.175052][ T375] loop_remove+0x46/0xb0 [ 21.179270][ T375] loop_control_ioctl+0x67f/0x740 [ 21.184289][ T375] ? loop_remove+0xb0/0xb0 [ 21.188676][ T375] ? _raw_spin_unlock_irq+0x4e/0x70 [ 21.193849][ T375] ? ptrace_notify+0x248/0x340 [ 21.198586][ T375] ? do_notify_parent+0xa60/0xa60 [ 21.203586][ T375] ? __fpregs_load_activate+0x1e7/0x370 [ 21.209102][ T375] ? security_file_ioctl+0xb1/0xd0 [ 21.214184][ T375] ? loop_remove+0xb0/0xb0 [ 21.218574][ T375] __se_sys_ioctl+0x115/0x190 [ 21.223234][ T375] __x64_sys_ioctl+0x7b/0x90 [ 21.227797][ T375] do_syscall_64+0x34/0x70 [ 21.232187][ T375] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 21.238074][ T375] RIP: 0033:0x7f9738193069 [ 21.242465][ 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 [ 21.262044][ T375] RSP: 002b:00007ffe54da8a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 21.270433][ T375] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9738193069 [ 21.278472][ T375] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 21.286418][ T375] RBP: 00007ffe54da8a70 R08: 0000000000000001 R09: 0000000000000001 [ 21.294363][ T375] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000004 [ 21.302310][ T375] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 21.310271][ T375] Modules linked in: [ 21.314261][ T375] ---[ end trace f1b15810f8082eb2 ]--- [ 21.319784][ T375] RIP: 0010:device_del+0xdf/0xf00 [ 21.324844][ T375] Code: 20 42 80 3c 28 00 74 08 48 89 df e8 fb 19 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 [ 21.344479][ T375] RSP: 0018:ffffc9000032fb60 EFLAGS: 00010202 [ 21.350576][ T375] RAX: 1ffff11020c7ca1a RBX: ffff8881063e50d0 RCX: ffffffff84925806 [ 21.358563][ T375] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc9000032fae0 [ 21.366521][ T375] RBP: ffffc9000032fc50 R08: dffffc0000000000 R09: fffff52000065f5d [ 21.374493][ T375] R10: fffff52000065f5d R11: 1ffff92000065f5c R12: 000000000000001a [ 21.382463][ T375] R13: dffffc0000000000 R14: ffff8881063e5108 R15: 00000000000000d0 [ 21.390485][ T375] FS: 0000555556061300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 21.399464][ T375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.406230][ T375] CR2: 00007f97381c29a0 CR3: 0000000106993000 CR4: 00000000003506b0 [ 21.414426][ T375] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.422640][ T375] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.430718][ T375] Kernel panic - not syncing: Fatal exception [ 21.436911][ T375] Kernel Offset: disabled [ 21.441215][ T375] Rebooting in 86400 seconds..