./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3306246166 <...> Warning: Permanently added '10.128.0.82' (ECDSA) to the list of known hosts. execve("./syz-executor3306246166", ["./syz-executor3306246166"], 0x7ffc0b7fac20 /* 10 vars */) = 0 brk(NULL) = 0x5555558e4000 brk(0x5555558e4c40) = 0x5555558e4c40 arch_prctl(ARCH_SET_FS, 0x5555558e4300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3306246166", 4096) = 28 brk(0x555555905c40) = 0x555555905c40 brk(0x555555906000) = 0x555555906000 mprotect(0x7f56f37ca000, 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, child_tidptr=0x5555558e45d0) = 372 ./strace-static-x86_64: Process 372 attached [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] ioctl(3, LOOP_CTL_REMOVE, 0) = 0 [pid 372] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 372] write(4, "81", 2) = 2 [ 19.116825][ T23] audit: type=1400 audit(1671752933.370:73): avc: denied { execmem } for pid=371 comm="syz-executor330" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 19.122643][ T23] audit: type=1400 audit(1671752933.370:74): avc: denied { read } for pid=372 comm="syz-executor330" 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 [ 19.126752][ T23] audit: type=1400 audit(1671752933.380:75): avc: denied { open } for pid=372 comm="syz-executor330" 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 [ 19.131058][ T23] audit: type=1400 audit(1671752933.380:76): avc: denied { ioctl } for pid=372 comm="syz-executor330" 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 [ 19.157091][ T372] FAULT_INJECTION: forcing a failure. [ 19.157091][ T372] name failslab, interval 1, probability 0, space 0, times 1 [ 19.169825][ T372] CPU: 1 PID: 372 Comm: syz-executor330 Not tainted 5.10.160-syzkaller-01321-g003c389455eb #0 [ 19.180144][ T372] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 19.190706][ T372] Call Trace: [ 19.193977][ T372] dump_stack_lvl+0x1e2/0x24b [ 19.198628][ T372] ? panic+0x7d7/0x7d7 [ 19.202672][ T372] ? bfq_pos_tree_add_move+0x43e/0x43e [ 19.208103][ T372] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 19.213103][ T372] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 19.218275][ T372] dump_stack+0x15/0x17 [ 19.222582][ T372] should_fail+0x3c0/0x510 [ 19.226976][ T372] ? kobj_map+0x72/0x6f0 [ 19.231295][ T372] __should_failslab+0x9f/0xe0 [ 19.236031][ T372] should_failslab+0x9/0x20 [ 19.240512][ T372] __kmalloc+0x60/0x360 [ 19.244640][ T372] ? __device_add_disk+0x536/0x11d0 [ 19.249810][ T372] kobj_map+0x72/0x6f0 [ 19.253871][ T372] ? exact_match+0x20/0x20 [ 19.258269][ T372] ? bdev_check_media_change+0x4c0/0x4c0 [ 19.263877][ T372] __device_add_disk+0x663/0x11d0 [ 19.268884][ T372] ? device_add_disk+0x40/0x40 [ 19.273621][ T372] ? loop_add+0x400/0x760 [ 19.277922][ T372] ? vsprintf+0x40/0x40 [ 19.282149][ T372] device_add_disk+0x2a/0x40 [ 19.286723][ T372] loop_add+0x58f/0x760 [ 19.290882][ T372] loop_control_ioctl+0x564/0x740 [ 19.295909][ T372] ? loop_remove+0xb0/0xb0 [ 19.300298][ T372] ? _raw_spin_unlock_irq+0x4e/0x70 [ 19.305476][ T372] ? ptrace_notify+0x248/0x340 [ 19.310396][ T372] ? do_notify_parent+0xa40/0xa40 [ 19.315395][ T372] ? __fpregs_load_activate+0x1e7/0x370 [ 19.320915][ T372] ? security_file_ioctl+0xb1/0xd0 [ 19.326014][ T372] ? loop_remove+0xb0/0xb0 [ 19.330422][ T372] __se_sys_ioctl+0x115/0x190 [ 19.335077][ T372] __x64_sys_ioctl+0x7b/0x90 [ 19.339734][ T372] do_syscall_64+0x34/0x70 [ 19.344126][ T372] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 19.349998][ T372] RIP: 0033:0x7f56f375d069 [ 19.354394][ 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 [ 19.374179][ T372] RSP: 002b:00007fff5a8dc618 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 19.382668][ T372] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f56f375d069 [ 19.390635][ T372] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 19.398770][ T372] RBP: 00007fff5a8dc630 R08: 0000000000000002 R09: 0000000000000001 [pid 372] ioctl(3, LOOP_CTL_ADD, 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=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558e45d0) = 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] ioctl(3, LOOP_CTL_REMOVE, 0) = 0 [pid 375] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 375] write(4, "81", 2) = 2 [ 19.407001][ T372] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 19.414952][ T372] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 19.468807][ T375] FAULT_INJECTION: forcing a failure. [ 19.468807][ T375] name failslab, interval 1, probability 0, space 0, times 0 [ 19.481408][ T375] CPU: 1 PID: 375 Comm: syz-executor330 Not tainted 5.10.160-syzkaller-01321-g003c389455eb #0 [ 19.491615][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 19.501647][ T375] Call Trace: [ 19.504919][ T375] dump_stack_lvl+0x1e2/0x24b [ 19.509681][ T375] ? panic+0x7d7/0x7d7 [ 19.513927][ T375] ? bfq_pos_tree_add_move+0x43e/0x43e [ 19.519379][ T375] ? selinux_kernfs_init_security+0x1a8/0x760 [ 19.525429][ T375] dump_stack+0x15/0x17 [ 19.529568][ T375] should_fail+0x3c0/0x510 [ 19.533959][ T375] __should_failslab+0x9f/0xe0 [ 19.538697][ T375] should_failslab+0x9/0x20 [ 19.543175][ T375] kmem_cache_alloc+0x3f/0x300 [ 19.547917][ T375] ? __kernfs_new_node+0xdb/0x6e0 [ 19.552916][ T375] __kernfs_new_node+0xdb/0x6e0 [ 19.557764][ T375] ? __kasan_check_write+0x14/0x20 [ 19.562850][ T375] ? mutex_lock+0xb2/0x1e0 [ 19.568455][ T375] ? mutex_trylock+0x180/0x180 [ 19.573202][ T375] ? kernfs_new_node+0x170/0x170 [ 19.578115][ T375] ? __kasan_check_write+0x14/0x20 [ 19.583203][ T375] ? mutex_unlock+0x29/0xf0 [ 19.587680][ T375] ? kernfs_activate+0x409/0x420 [ 19.592683][ T375] kernfs_new_node+0x97/0x170 [ 19.597348][ T375] __kernfs_create_file+0x4a/0x270 [ 19.602455][ T375] sysfs_add_file_mode_ns+0x273/0x320 [ 19.607812][ T375] internal_create_group+0x55e/0xf50 [ 19.613084][ T375] ? sysfs_create_group+0x30/0x30 [ 19.618100][ T375] ? kernfs_put+0x48/0x540 [ 19.622552][ T375] ? kernfs_create_link+0x1a0/0x210 [ 19.627993][ T375] sysfs_create_groups+0x5d/0x130 [ 19.633007][ T375] device_add_attrs+0xd3/0x3e0 [ 19.637748][ T375] ? device_add_class_symlinks+0x27c/0x2a0 [ 19.643636][ T375] device_add+0x4e6/0xbd0 [ 19.647940][ T375] __device_add_disk+0x77d/0x11d0 [ 19.652939][ T375] ? device_add_disk+0x40/0x40 [ 19.657778][ T375] ? vsprintf+0x40/0x40 [ 19.661912][ T375] device_add_disk+0x2a/0x40 [ 19.666478][ T375] loop_add+0x58f/0x760 [ 19.670696][ T375] loop_control_ioctl+0x564/0x740 [ 19.675703][ T375] ? loop_remove+0xb0/0xb0 [ 19.680103][ T375] ? _raw_spin_unlock_irq+0x4e/0x70 [ 19.685277][ T375] ? ptrace_notify+0x248/0x340 [ 19.690017][ T375] ? do_notify_parent+0xa40/0xa40 [ 19.695016][ T375] ? __fpregs_load_activate+0x1e7/0x370 [ 19.700539][ T375] ? security_file_ioctl+0xb1/0xd0 [ 19.706655][ T375] ? loop_remove+0xb0/0xb0 [ 19.711145][ T375] __se_sys_ioctl+0x115/0x190 [ 19.716044][ T375] __x64_sys_ioctl+0x7b/0x90 [ 19.720710][ T375] do_syscall_64+0x34/0x70 [ 19.725109][ T375] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 19.730988][ T375] RIP: 0033:0x7f56f375d069 [ 19.735397][ 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 [ 19.755506][ T375] RSP: 002b:00007fff5a8dc618 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 19.763911][ T375] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f56f375d069 [ 19.771949][ T375] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 19.779943][ T375] RBP: 00007fff5a8dc630 R08: 0000000000000002 R09: 0000000000000001 [ 19.787980][ T375] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 19.796029][ T375] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 19.804321][ T375] kobject_add_internal failed for queue (error: -2 parent: loop0) [ 19.812166][ T375] ------------[ cut here ]------------ [ 19.817645][ T375] WARNING: CPU: 1 PID: 375 at fs/sysfs/file.c:328 sysfs_create_files+0x215/0x4a0 [ 19.826754][ T375] Modules linked in: [ 19.830648][ T375] CPU: 1 PID: 375 Comm: syz-executor330 Not tainted 5.10.160-syzkaller-01321-g003c389455eb #0 [ 19.840902][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 19.851106][ T375] RIP: 0010:sysfs_create_files+0x215/0x4a0 [ 19.856935][ 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 5b a2 9a ff <0f> 0b c7 44 24 04 ea ff ff ff 48 b9 00 00 00 00 00 fc ff df 48 8b [ 19.876739][ T375] RSP: 0018:ffffc90000a7fae0 EFLAGS: 00010293 [ 19.882803][ T375] RAX: ffffffff81d27fd1 RBX: ffff8881063dc098 RCX: ffff888106580000 [ 19.890877][ T375] RDX: 0000000000000000 RSI: ffffffff8653acc0 RDI: ffff8881063dc068 [ 19.898977][ T375] RBP: ffffc90000a7fbb0 R08: ffffffff826c6018 R09: ffffed102151a9de [ 19.907044][ T375] R10: ffffed102151a9de R11: 1ffff1102151a9dd R12: 0000000000000000 [ 19.915007][ T375] R13: ffffffff854334a0 R14: ffff8881063dc068 R15: ffffffff8653acc0 [ 19.923170][ T375] FS: 00005555558e4300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 19.932188][ T375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.939044][ T375] CR2: 00007f56f37b5144 CR3: 00000001065d2000 CR4: 00000000003506a0 [ 19.947361][ T375] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.955357][ T375] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.963319][ T375] Call Trace: [ 19.966623][ T375] ? sysfs_create_file_ns+0x2a0/0x2a0 [ 19.971992][ T375] ? __kasan_check_write+0x14/0x20 [ 19.977114][ T375] ? kobject_get+0xd2/0x120 [ 19.981608][ T375] __device_add_disk+0x9cb/0x11d0 [ 19.986657][ T375] ? device_add_disk+0x40/0x40 [ 19.991419][ T375] ? vsprintf+0x40/0x40 [ 19.995779][ T375] device_add_disk+0x2a/0x40 [ 20.000387][ T375] loop_add+0x58f/0x760 [ 20.004619][ T375] loop_control_ioctl+0x564/0x740 [ 20.012038][ T375] ? loop_remove+0xb0/0xb0 [ 20.016649][ T375] ? _raw_spin_unlock_irq+0x4e/0x70 [ 20.021974][ T375] ? ptrace_notify+0x248/0x340 [ 20.026847][ T375] ? do_notify_parent+0xa40/0xa40 [ 20.031882][ T375] ? __fpregs_load_activate+0x1e7/0x370 [ 20.037584][ T375] ? security_file_ioctl+0xb1/0xd0 [ 20.042757][ T375] ? loop_remove+0xb0/0xb0 [ 20.047283][ T375] __se_sys_ioctl+0x115/0x190 [ 20.051966][ T375] __x64_sys_ioctl+0x7b/0x90 [ 20.056677][ T375] do_syscall_64+0x34/0x70 [ 20.061091][ T375] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 20.067090][ T375] RIP: 0033:0x7f56f375d069 [ 20.071513][ 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 [ 20.091332][ T375] RSP: 002b:00007fff5a8dc618 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.099769][ T375] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f56f375d069 [ 20.107924][ T375] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 20.115993][ T375] RBP: 00007fff5a8dc630 R08: 0000000000000002 R09: 0000000000000001 [ 20.124054][ T375] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 20.132134][ T375] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.140130][ T375] ---[ end trace 925785ac800712b7 ]--- [ 20.145687][ T375] ------------[ cut here ]------------ [ 20.151577][ T375] kernfs: can not remove 'events', no directory [ 20.158005][ T375] WARNING: CPU: 0 PID: 375 at fs/kernfs/dir.c:1515 kernfs_remove_by_name_ns+0xc0/0x110 [ 20.167627][ T375] Modules linked in: [ 20.171531][ T375] CPU: 0 PID: 375 Comm: syz-executor330 Tainted: G W 5.10.160-syzkaller-01321-g003c389455eb #0 [ 20.183254][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 20.193468][ T375] RIP: 0010:kernfs_remove_by_name_ns+0xc0/0x110 [ 20.199906][ T375] Code: 48 89 df e8 72 ee ff ff 48 89 df e8 8a b1 ff ff 31 db eb 29 e8 c1 00 9b ff 48 c7 c7 c0 32 2d 85 4c 89 fe 31 c0 e8 70 17 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 a2 00 9b ff bb fe ff ff ff 48 c7 c7 [ 20.219890][ T375] RSP: 0018:ffffc90000a7fab8 EFLAGS: 00010246 [ 20.226070][ T375] RAX: 3babe2a462d82500 RBX: 0000000000000000 RCX: ffff888106580000 [ 20.234034][ T375] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 20.242200][ T375] RBP: ffffc90000a7fad0 R08: ffffffff81540db8 R09: fffff5200014fe7d [ 20.250275][ T375] R10: fffff5200014fe7d R11: 1ffff9200014fe7c R12: ffffffff8653acc0 [ 20.258260][ T375] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff85433480 [ 20.266331][ T375] FS: 00005555558e4300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 20.275564][ T375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.282236][ T375] CR2: 00005555558e45d0 CR3: 00000001065d2000 CR4: 00000000003506b0 [ 20.290221][ T375] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.298432][ T375] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.306511][ T375] Call Trace: [ 20.309803][ T375] sysfs_create_files+0x40a/0x4a0 [ 20.314987][ T375] ? sysfs_create_file_ns+0x2a0/0x2a0 [ 20.321414][ T375] ? __kasan_check_write+0x14/0x20 [ 20.328994][ T375] ? kobject_get+0xd2/0x120 [ 20.333682][ T375] __device_add_disk+0x9cb/0x11d0 [ 20.338742][ T375] ? device_add_disk+0x40/0x40 [ 20.343684][ T375] ? vsprintf+0x40/0x40 [ 20.347866][ T375] device_add_disk+0x2a/0x40 [ 20.352526][ T375] loop_add+0x58f/0x760 [ 20.356817][ T375] loop_control_ioctl+0x564/0x740 [ 20.361936][ T375] ? loop_remove+0xb0/0xb0 [ 20.366371][ T375] ? _raw_spin_unlock_irq+0x4e/0x70 [ 20.371576][ T375] ? ptrace_notify+0x248/0x340 [ 20.376538][ T375] ? do_notify_parent+0xa40/0xa40 [ 20.381641][ T375] ? __fpregs_load_activate+0x1e7/0x370 [ 20.387988][ T375] ? security_file_ioctl+0xb1/0xd0 [ 20.393094][ T375] ? loop_remove+0xb0/0xb0 [ 20.397542][ T375] __se_sys_ioctl+0x115/0x190 [ 20.402230][ T375] __x64_sys_ioctl+0x7b/0x90 [ 20.406926][ T375] do_syscall_64+0x34/0x70 [ 20.411342][ T375] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 20.417250][ T375] RIP: 0033:0x7f56f375d069 [ 20.421752][ 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 [ 20.441571][ T375] RSP: 002b:00007fff5a8dc618 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.450098][ T375] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f56f375d069 [ 20.458087][ T375] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 20.466205][ T375] RBP: 00007fff5a8dc630 R08: 0000000000000002 R09: 0000000000000001 [pid 375] ioctl(3, LOOP_CTL_ADD, 0) = 0 [pid 375] exit_group(0) = ? [pid 375] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=375, si_uid=0, si_status=0, si_utime=0, si_stime=67} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555558e45d0) = 376 ./strace-static-x86_64: Process 376 attached [pid 376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 376] setpgid(0, 0) = 0 [pid 376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 376] write(3, "1000", 4) = 4 [pid 376] close(3) = 0 [pid 376] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [ 20.474266][ T375] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 20.482462][ T375] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.490450][ T375] ---[ end trace 925785ac800712b8 ]--- [ 20.495945][ T375] loop0: failed to create sysfs files for events [ 20.508516][ T376] ------------[ cut here ]------------ [ 20.514181][ T376] kernfs: can not remove 'events', no directory [ 20.520687][ T376] WARNING: CPU: 1 PID: 376 at fs/kernfs/dir.c:1515 kernfs_remove_by_name_ns+0xc0/0x110 [ 20.530449][ T376] Modules linked in: [ 20.534355][ T376] CPU: 1 PID: 376 Comm: syz-executor330 Tainted: G W 5.10.160-syzkaller-01321-g003c389455eb #0 [ 20.546206][ T376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 20.556279][ T376] RIP: 0010:kernfs_remove_by_name_ns+0xc0/0x110 [ 20.562511][ T376] Code: 48 89 df e8 72 ee ff ff 48 89 df e8 8a b1 ff ff 31 db eb 29 e8 c1 00 9b ff 48 c7 c7 c0 32 2d 85 4c 89 fe 31 c0 e8 70 17 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 a2 00 9b ff bb fe ff ff ff 48 c7 c7 [ 20.582409][ T376] RSP: 0018:ffffc90000a2fbf8 EFLAGS: 00010246 [ 20.588673][ T376] RAX: e31d75348cadf900 RBX: 0000000000000000 RCX: ffff8881065862c0 [ 20.597471][ T376] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 20.605533][ T376] RBP: ffffc90000a2fc10 R08: ffffffff81540db8 R09: fffff52000145ea5 [ 20.613520][ T376] R10: fffff52000145ea5 R11: 1ffff92000145ea4 R12: 0000000000000000 [ 20.621511][ T376] R13: ffffffff8653acc0 R14: 0000000000000000 R15: ffffffff85433480 [ 20.629739][ T376] FS: 00005555558e4300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 20.639131][ T376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.645737][ T376] CR2: 00007f56f37ce130 CR3: 000000011df95000 CR4: 00000000003506a0 [ 20.653697][ T376] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.661686][ T376] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.669769][ T376] Call Trace: [ 20.673844][ T376] sysfs_remove_files+0xab/0x110 [ 20.679403][ T376] del_gendisk+0x278/0xe20 [ 20.683816][ T376] ? device_add_disk_no_queue_reg+0x30/0x30 [ 20.689712][ T376] ? __radix_tree_delete+0x2ba/0x380 [ 20.695195][ T376] ? radix_tree_delete_item+0x261/0x360 [ 20.700818][ T376] loop_remove+0x46/0xb0 [ 20.705045][ T376] loop_control_ioctl+0x67f/0x740 [ 20.710159][ T376] ? loop_remove+0xb0/0xb0 [ 20.714566][ T376] ? _raw_spin_unlock_irq+0x4e/0x70 [ 20.720468][ T376] ? ptrace_notify+0x248/0x340 [ 20.725375][ T376] ? do_notify_parent+0xa40/0xa40 [ 20.730395][ T376] ? security_file_ioctl+0xb1/0xd0 [ 20.735567][ T376] ? loop_remove+0xb0/0xb0 [ 20.740102][ T376] __se_sys_ioctl+0x115/0x190 [ 20.744858][ T376] __x64_sys_ioctl+0x7b/0x90 [ 20.749558][ T376] do_syscall_64+0x34/0x70 [ 20.753971][ T376] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 20.759870][ T376] RIP: 0033:0x7f56f375d069 [ 20.764366][ T376] 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 [ 20.784081][ T376] RSP: 002b:00007fff5a8dc618 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.792523][ T376] RAX: ffffffffffffffda RBX: 0000000000004bc9 RCX: 00007f56f375d069 [ 20.800508][ T376] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 20.808575][ T376] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 20.816551][ T376] R10: 00007fff5a8dc090 R11: 0000000000000246 R12: 00007fff5a8dc62c [ 20.824512][ T376] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.832584][ T376] ---[ end trace 925785ac800712b9 ]--- [ 20.838035][ T376] ------------[ cut here ]------------ [ 20.843467][ T376] kernfs: can not remove 'events_async', no directory [ 20.850290][ T376] WARNING: CPU: 1 PID: 376 at fs/kernfs/dir.c:1515 kernfs_remove_by_name_ns+0xc0/0x110 [ 20.859911][ T376] Modules linked in: [ 20.863801][ T376] CPU: 1 PID: 376 Comm: syz-executor330 Tainted: G W 5.10.160-syzkaller-01321-g003c389455eb #0 [ 20.875423][ T376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 20.885502][ T376] RIP: 0010:kernfs_remove_by_name_ns+0xc0/0x110 [ 20.891733][ T376] Code: 48 89 df e8 72 ee ff ff 48 89 df e8 8a b1 ff ff 31 db eb 29 e8 c1 00 9b ff 48 c7 c7 c0 32 2d 85 4c 89 fe 31 c0 e8 70 17 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 a2 00 9b ff bb fe ff ff ff 48 c7 c7 [ 20.912158][ T376] RSP: 0018:ffffc90000a2fbf8 EFLAGS: 00010246 [ 20.918263][ T376] RAX: e31d75348cadf900 RBX: 0000000000000000 RCX: ffff8881065862c0 [ 20.926258][ T376] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 20.934221][ T376] RBP: ffffc90000a2fc10 R08: ffffffff81540db8 R09: fffff52000145ea5 [ 20.942291][ T376] R10: fffff52000145ea5 R11: 1ffff92000145ea4 R12: 0000000000000000 [ 20.950282][ T376] R13: ffffffff8653acc0 R14: 0000000000000000 R15: ffffffff85433560 [ 20.958392][ T376] FS: 00005555558e4300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 20.967362][ T376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.976474][ T376] CR2: 00007f56f37ce130 CR3: 000000011df95000 CR4: 00000000003506a0 [ 20.984433][ T376] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.992417][ T376] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.000419][ T376] Call Trace: [ 21.003731][ T376] sysfs_remove_files+0xab/0x110 [ 21.008771][ T376] del_gendisk+0x278/0xe20 [ 21.013190][ T376] ? device_add_disk_no_queue_reg+0x30/0x30 [ 21.019091][ T376] ? __radix_tree_delete+0x2ba/0x380 [ 21.024477][ T376] ? radix_tree_delete_item+0x261/0x360 [ 21.030166][ T376] loop_remove+0x46/0xb0 [ 21.034497][ T376] loop_control_ioctl+0x67f/0x740 [ 21.039552][ T376] ? loop_remove+0xb0/0xb0 [ 21.043964][ T376] ? _raw_spin_unlock_irq+0x4e/0x70 [ 21.049188][ T376] ? ptrace_notify+0x248/0x340 [ 21.053962][ T376] ? do_notify_parent+0xa40/0xa40 [ 21.059269][ T376] ? security_file_ioctl+0xb1/0xd0 [ 21.064377][ T376] ? loop_remove+0xb0/0xb0 [ 21.068797][ T376] __se_sys_ioctl+0x115/0x190 [ 21.073467][ T376] __x64_sys_ioctl+0x7b/0x90 [ 21.078062][ T376] do_syscall_64+0x34/0x70 [ 21.082475][ T376] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 21.088376][ T376] RIP: 0033:0x7f56f375d069 [ 21.092805][ T376] 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 [ 21.112443][ T376] RSP: 002b:00007fff5a8dc618 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 21.120884][ T376] RAX: ffffffffffffffda RBX: 0000000000004bc9 RCX: 00007f56f375d069 [ 21.128864][ T376] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 21.136852][ T376] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 21.144812][ T376] R10: 00007fff5a8dc090 R11: 0000000000000246 R12: 00007fff5a8dc62c [ 21.152814][ T376] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 21.160807][ T376] ---[ end trace 925785ac800712ba ]--- [ 21.166352][ T376] ------------[ cut here ]------------ [ 21.171806][ T376] kernfs: can not remove 'events_poll_msecs', no directory [ 21.179161][ T376] WARNING: CPU: 1 PID: 376 at fs/kernfs/dir.c:1515 kernfs_remove_by_name_ns+0xc0/0x110 [ 21.188801][ T376] Modules linked in: [ 21.192688][ T376] CPU: 1 PID: 376 Comm: syz-executor330 Tainted: G W 5.10.160-syzkaller-01321-g003c389455eb #0 [ 21.204329][ T376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 21.214399][ T376] RIP: 0010:kernfs_remove_by_name_ns+0xc0/0x110 [ 21.220746][ T376] Code: 48 89 df e8 72 ee ff ff 48 89 df e8 8a b1 ff ff 31 db eb 29 e8 c1 00 9b ff 48 c7 c7 c0 32 2d 85 4c 89 fe 31 c0 e8 70 17 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 a2 00 9b ff bb fe ff ff ff 48 c7 c7 [ 21.240448][ T376] RSP: 0018:ffffc90000a2fbf8 EFLAGS: 00010246 [ 21.246517][ T376] RAX: e31d75348cadf900 RBX: 0000000000000000 RCX: ffff8881065862c0 [ 21.254476][ T376] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 21.262976][ T376] RBP: ffffc90000a2fc10 R08: ffffffff81540db8 R09: fffff52000145ea5 [ 21.271048][ T376] R10: fffff52000145ea5 R11: 1ffff92000145ea4 R12: 0000000000000000 [ 21.279033][ T376] R13: ffffffff8653acc0 R14: 0000000000000000 R15: ffffffff854335c0 [ 21.287193][ T376] FS: 00005555558e4300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 21.296313][ T376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.302893][ T376] CR2: 00007f56f37ce130 CR3: 000000011df95000 CR4: 00000000003506a0 [ 21.310969][ T376] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.318967][ T376] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.326941][ T376] Call Trace: [ 21.330217][ T376] sysfs_remove_files+0xab/0x110 [ 21.335249][ T376] del_gendisk+0x278/0xe20 [ 21.340011][ T376] ? device_add_disk_no_queue_reg+0x30/0x30 [ 21.345911][ T376] ? __radix_tree_delete+0x2ba/0x380 [ 21.351179][ T376] ? radix_tree_delete_item+0x261/0x360 [ 21.356740][ T376] loop_remove+0x46/0xb0 [ 21.360991][ T376] loop_control_ioctl+0x67f/0x740 [ 21.366017][ T376] ? loop_remove+0xb0/0xb0 [ 21.370431][ T376] ? _raw_spin_unlock_irq+0x4e/0x70 [ 21.375636][ T376] ? ptrace_notify+0x248/0x340 [ 21.380391][ T376] ? do_notify_parent+0xa40/0xa40 [ 21.385429][ T376] ? security_file_ioctl+0xb1/0xd0 [ 21.390534][ T376] ? loop_remove+0xb0/0xb0 [ 21.394927][ T376] __se_sys_ioctl+0x115/0x190 [ 21.399605][ T376] __x64_sys_ioctl+0x7b/0x90 [ 21.404188][ T376] do_syscall_64+0x34/0x70 [ 21.408695][ T376] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 21.414594][ T376] RIP: 0033:0x7f56f375d069 [ 21.419059][ T376] 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 [ 21.438846][ T376] RSP: 002b:00007fff5a8dc618 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 21.447451][ T376] RAX: ffffffffffffffda RBX: 0000000000004bc9 RCX: 00007f56f375d069 [ 21.455453][ T376] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 21.463400][ T376] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 21.471375][ T376] R10: 00007fff5a8dc090 R11: 0000000000000246 R12: 00007fff5a8dc62c [ 21.479645][ T376] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 21.487632][ T376] ---[ end trace 925785ac800712bb ]--- [ 21.493203][ T376] ------------[ cut here ]------------ [ 21.498897][ T376] kernfs: can not remove 'bdi', no directory [ 21.505009][ T376] WARNING: CPU: 1 PID: 376 at fs/kernfs/dir.c:1515 kernfs_remove_by_name_ns+0xc0/0x110 [ 21.514880][ T376] Modules linked in: [ 21.518894][ T376] CPU: 1 PID: 376 Comm: syz-executor330 Tainted: G W 5.10.160-syzkaller-01321-g003c389455eb #0 [ 21.530790][ T376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 21.540903][ T376] RIP: 0010:kernfs_remove_by_name_ns+0xc0/0x110 [ 21.547243][ T376] Code: 48 89 df e8 72 ee ff ff 48 89 df e8 8a b1 ff ff 31 db eb 29 e8 c1 00 9b ff 48 c7 c7 c0 32 2d 85 4c 89 fe 31 c0 e8 70 17 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 a2 00 9b ff bb fe ff ff ff 48 c7 c7 [ 21.566938][ T376] RSP: 0018:ffffc90000a2fc18 EFLAGS: 00010246 [ 21.573090][ T376] RAX: e31d75348cadf900 RBX: 0000000000000000 RCX: ffff8881065862c0 [ 21.581233][ T376] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 21.589393][ T376] RBP: ffffc90000a2fc30 R08: ffffffff81540db8 R09: ffffed103ee2a5e8 [ 21.597583][ T376] R10: ffffed103ee2a5e8 R11: 1ffff1103ee2a5e7 R12: 0000000000000240 [ 21.605732][ T376] R13: ffff8881063dc030 R14: 0000000000000000 R15: ffffffff85432e60 [ 21.613865][ T376] FS: 00005555558e4300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 21.622884][ T376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.629548][ T376] CR2: 00007f56f37ce130 CR3: 000000011df95000 CR4: 00000000003506a0 [ 21.637682][ T376] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.645671][ T376] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.653641][ T376] Call Trace: [ 21.656942][ T376] sysfs_remove_link+0x50/0x60 [ 21.661793][ T376] del_gendisk+0x7cd/0xe20 [ 21.666214][ T376] ? device_add_disk_no_queue_reg+0x30/0x30 [ 21.672098][ T376] ? __radix_tree_delete+0x2ba/0x380 [ 21.677392][ T376] ? radix_tree_delete_item+0x261/0x360 [ 21.682932][ T376] loop_remove+0x46/0xb0 [ 21.687183][ T376] loop_control_ioctl+0x67f/0x740 [ 21.692389][ T376] ? loop_remove+0xb0/0xb0 [ 21.696829][ T376] ? _raw_spin_unlock_irq+0x4e/0x70 [ 21.702038][ T376] ? ptrace_notify+0x248/0x340 [ 21.706839][ T376] ? do_notify_parent+0xa40/0xa40 [ 21.711873][ T376] ? security_file_ioctl+0xb1/0xd0 [ 21.716998][ T376] ? loop_remove+0xb0/0xb0 [ 21.721409][ T376] __se_sys_ioctl+0x115/0x190 [ 21.726093][ T376] __x64_sys_ioctl+0x7b/0x90 [ 21.730698][ T376] do_syscall_64+0x34/0x70 [ 21.735134][ T376] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 21.741015][ T376] RIP: 0033:0x7f56f375d069 [ 21.745734][ T376] 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 [ 21.765528][ T376] RSP: 002b:00007fff5a8dc618 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 21.773921][ T376] RAX: ffffffffffffffda RBX: 0000000000004bc9 RCX: 00007f56f375d069 [ 21.782232][ T376] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 21.790234][ T376] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 21.798226][ T376] R10: 00007fff5a8dc090 R11: 0000000000000246 R12: 00007fff5a8dc62c [ 21.806388][ T376] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 21.814358][ T376] ---[ end trace 925785ac800712bc ]--- [ 21.820243][ T376] general protection fault, probably for non-canonical address 0xdffffc000000001a: 0000 [#1] PREEMPT SMP KASAN [ 21.832052][ T376] KASAN: null-ptr-deref in range [0x00000000000000d0-0x00000000000000d7] [ 21.840443][ T376] CPU: 0 PID: 376 Comm: syz-executor330 Tainted: G W 5.10.160-syzkaller-01321-g003c389455eb #0 [ 21.852039][ T376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 21.862079][ T376] RIP: 0010:device_del+0xdf/0xf00 [ 21.867208][ T376] Code: 20 42 80 3c 28 00 74 08 48 89 df e8 6b aa 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 [ 21.886804][ T376] RSP: 0018:ffffc90000a2fb60 EFLAGS: 00010202 [ 21.892953][ T376] RAX: 1ffff11020c7b81a RBX: ffff8881063dc0d0 RCX: ffff8881065862c0 [ 21.900905][ T376] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc90000a2fae0 [ 21.908852][ T376] RBP: ffffc90000a2fc50 R08: dffffc0000000000 R09: fffff52000145f5d [ 21.916800][ T376] R10: fffff52000145f5d R11: 1ffff92000145f5c R12: 000000000000001a [ 21.924751][ T376] R13: dffffc0000000000 R14: ffff8881063dc108 R15: 00000000000000d0 [ 21.932702][ T376] FS: 00005555558e4300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 21.941622][ T376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.948271][ T376] CR2: 00007f56f37d1290 CR3: 000000011df95000 CR4: 00000000003506b0 [ 21.956226][ T376] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.964264][ T376] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.972208][ T376] Call Trace: [ 21.975475][ T376] ? _raw_spin_lock_irqsave+0x210/0x210 [ 21.980995][ T376] ? kernfs_name_hash+0x1f9/0x240 [ 21.986089][ T376] ? kill_device+0xd0/0xd0 [ 21.990484][ T376] del_gendisk+0xbf2/0xe20 [ 21.994886][ T376] ? device_add_disk_no_queue_reg+0x30/0x30 [ 22.000759][ T376] ? __radix_tree_delete+0x2ba/0x380 [ 22.006019][ T376] ? radix_tree_delete_item+0x261/0x360 [ 22.011542][ T376] loop_remove+0x46/0xb0 [ 22.015767][ T376] loop_control_ioctl+0x67f/0x740 [ 22.020765][ T376] ? loop_remove+0xb0/0xb0 [ 22.025154][ T376] ? _raw_spin_unlock_irq+0x4e/0x70 [ 22.030326][ T376] ? ptrace_notify+0x248/0x340 [ 22.035093][ T376] ? do_notify_parent+0xa40/0xa40 [ 22.040098][ T376] ? security_file_ioctl+0xb1/0xd0 [ 22.045199][ T376] ? loop_remove+0xb0/0xb0 [ 22.049606][ T376] __se_sys_ioctl+0x115/0x190 [ 22.054262][ T376] __x64_sys_ioctl+0x7b/0x90 [ 22.058827][ T376] do_syscall_64+0x34/0x70 [ 22.063220][ T376] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 22.069088][ T376] RIP: 0033:0x7f56f375d069 [ 22.073482][ T376] 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 [ 22.093068][ T376] RSP: 002b:00007fff5a8dc618 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.101543][ T376] RAX: ffffffffffffffda RBX: 0000000000004bc9 RCX: 00007f56f375d069 [ 22.109497][ T376] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 22.117539][ T376] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 22.125502][ T376] R10: 00007fff5a8dc090 R11: 0000000000000246 R12: 00007fff5a8dc62c [ 22.133553][ T376] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 22.141512][ T376] Modules linked in: [ 22.145498][ T376] ---[ end trace 925785ac800712bd ]--- [ 22.151042][ T376] RIP: 0010:device_del+0xdf/0xf00 [ 22.156096][ T376] Code: 20 42 80 3c 28 00 74 08 48 89 df e8 6b aa 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 [ 22.175827][ T376] RSP: 0018:ffffc90000a2fb60 EFLAGS: 00010202 [ 22.181984][ T376] RAX: 1ffff11020c7b81a RBX: ffff8881063dc0d0 RCX: ffff8881065862c0 [ 22.190141][ T376] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffc90000a2fae0 [ 22.198116][ T376] RBP: ffffc90000a2fc50 R08: dffffc0000000000 R09: fffff52000145f5d [ 22.206106][ T376] R10: fffff52000145f5d R11: 1ffff92000145f5c R12: 000000000000001a [ 22.214181][ T376] R13: dffffc0000000000 R14: ffff8881063dc108 R15: 00000000000000d0 [ 22.222176][ T376] FS: 00005555558e4300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 22.231106][ T376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.237708][ T376] CR2: 00007f56f37d1290 CR3: 000000011df95000 CR4: 00000000003506b0 [ 22.245687][ T376] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.253642][ T376] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.261627][ T376] Kernel panic - not syncing: Fatal exception [ 22.267874][ T376] Kernel Offset: disabled [ 22.272284][ T376] Rebooting in 86400 seconds..