./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor609787100 <...> Warning: Permanently added '10.128.0.54' (ECDSA) to the list of known hosts. execve("./syz-executor609787100", ["./syz-executor609787100"], 0x7ffe861bb6b0 /* 10 vars */) = 0 brk(NULL) = 0x555555bb8000 brk(0x555555bb8c40) = 0x555555bb8c40 arch_prctl(ARCH_SET_FS, 0x555555bb8300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor609787100", 4096) = 27 brk(0x555555bd9c40) = 0x555555bd9c40 brk(0x555555bda000) = 0x555555bda000 mprotect(0x7f9f4181a000, 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=0x555555bb85d0) = 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] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 372] write(4, "71", 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} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555bb85d0) = 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, "71", 2) = 2 [ 19.294474][ T24] audit: type=1400 audit(1660516539.770:73): avc: denied { execmem } for pid=371 comm="syz-executor609" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 19.299539][ T24] audit: type=1400 audit(1660516539.780:74): avc: denied { read } for pid=372 comm="syz-executor609" 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 [ 19.304473][ T24] audit: type=1400 audit(1660516539.780:75): avc: denied { open } for pid=372 comm="syz-executor609" 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 [ 19.308807][ T24] audit: type=1400 audit(1660516539.780:76): avc: denied { ioctl } for pid=372 comm="syz-executor609" 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 [ 19.317909][ T375] FAULT_INJECTION: forcing a failure. [ 19.317909][ T375] name failslab, interval 1, probability 0, space 0, times 1 [ 19.330622][ T375] CPU: 0 PID: 375 Comm: syz-executor609 Not tainted 5.10.135-syzkaller-01839-g30abcdabf21e #0 [ 19.340830][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 19.350859][ T375] Call Trace: [ 19.354124][ T375] dump_stack_lvl+0x1e2/0x24b [ 19.358773][ T375] ? panic+0x7d7/0x7d7 [ 19.362833][ T375] ? bfq_pos_tree_add_move+0x43e/0x43e [ 19.368265][ T375] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 19.373258][ T375] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 19.378425][ T375] dump_stack+0x15/0x17 [ 19.382552][ T375] should_fail+0x3c0/0x510 [ 19.386937][ T375] ? kobj_map+0x72/0x6f0 [ 19.391152][ T375] __should_failslab+0x9f/0xe0 [ 19.395889][ T375] should_failslab+0x9/0x20 [ 19.400361][ T375] __kmalloc+0x60/0x360 [ 19.404488][ T375] ? __device_add_disk+0x536/0x11d0 [ 19.409653][ T375] kobj_map+0x72/0x6f0 [ 19.413692][ T375] ? exact_match+0x20/0x20 [ 19.418076][ T375] ? bdev_check_media_change+0x4c0/0x4c0 [ 19.423676][ T375] __device_add_disk+0x663/0x11d0 [ 19.428670][ T375] ? device_add_disk+0x40/0x40 [ 19.433401][ T375] ? loop_add+0x440/0x760 [ 19.437700][ T375] ? vsprintf+0x40/0x40 [ 19.441822][ T375] device_add_disk+0x2a/0x40 [ 19.446379][ T375] loop_add+0x58f/0x760 [ 19.450503][ T375] loop_control_ioctl+0x564/0x740 [ 19.455493][ T375] ? loop_remove+0xb0/0xb0 [ 19.459879][ T375] ? _raw_spin_unlock_irq+0x4e/0x70 [ 19.465048][ T375] ? ptrace_notify+0x248/0x340 [ 19.469795][ T375] ? do_notify_parent+0xa40/0xa40 [ 19.474795][ T375] ? __fpregs_load_activate+0x1e7/0x370 [ 19.480312][ T375] ? security_file_ioctl+0xb1/0xd0 [ 19.485394][ T375] ? loop_remove+0xb0/0xb0 [ 19.489784][ T375] __se_sys_ioctl+0x115/0x190 [ 19.494433][ T375] __x64_sys_ioctl+0x7b/0x90 [ 19.498994][ T375] do_syscall_64+0x34/0x70 [ 19.503382][ T375] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 19.509277][ T375] RIP: 0033:0x7f9f417ad069 [ 19.513670][ 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 [ 19.533248][ T375] RSP: 002b:00007ffcc290bcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [pid 375] ioctl(3, LOOP_CTL_ADD, 0) = 0 [pid 375] ioctl(3, LOOP_CTL_REMOVE, 0) = -1 EBUSY (Device or resource busy) [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=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555bb85d0) = 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 [pid 376] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 376] write(4, "71", 2) = 2 [pid 376] ioctl(3, LOOP_CTL_ADD, 0) = -1 EEXIST (File exists) [pid 376] ioctl(3, LOOP_CTL_REMOVE, 0) = 0 [pid 376] exit_group(0) = ? [pid 376] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=376, 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=0x555555bb85d0) = 377 ./strace-static-x86_64: Process 377 attached [pid 377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 377] setpgid(0, 0) = 0 [pid 377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 377] write(3, "1000", 4) = 4 [pid 377] close(3) = 0 [pid 377] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 377] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 377] write(4, "71", 2) = 2 [ 19.541632][ T375] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9f417ad069 [ 19.549573][ T375] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 19.557518][ T375] RBP: 00007ffcc290bcd0 R08: 0000000000000002 R09: 0000000000000001 [ 19.565459][ T375] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 19.573413][ T375] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 19.622222][ T377] FAULT_INJECTION: forcing a failure. [ 19.622222][ T377] name failslab, interval 1, probability 0, space 0, times 0 [ 19.634827][ T377] CPU: 1 PID: 377 Comm: syz-executor609 Not tainted 5.10.135-syzkaller-01839-g30abcdabf21e #0 [ 19.645134][ T377] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 19.655158][ T377] Call Trace: [ 19.658440][ T377] dump_stack_lvl+0x1e2/0x24b [ 19.663095][ T377] ? panic+0x7d7/0x7d7 [ 19.667138][ T377] ? bfq_pos_tree_add_move+0x43e/0x43e [ 19.672569][ T377] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 19.677565][ T377] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 19.682737][ T377] dump_stack+0x15/0x17 [ 19.686866][ T377] should_fail+0x3c0/0x510 [ 19.691255][ T377] ? kobj_map+0x72/0x6f0 [ 19.695487][ T377] __should_failslab+0x9f/0xe0 [ 19.700223][ T377] should_failslab+0x9/0x20 [ 19.704700][ T377] __kmalloc+0x60/0x360 [ 19.708830][ T377] ? __device_add_disk+0x536/0x11d0 [ 19.714000][ T377] kobj_map+0x72/0x6f0 [ 19.718060][ T377] ? exact_match+0x20/0x20 [ 19.722449][ T377] ? bdev_check_media_change+0x4c0/0x4c0 [ 19.728073][ T377] __device_add_disk+0x663/0x11d0 [ 19.733072][ T377] ? device_add_disk+0x40/0x40 [ 19.737812][ T377] ? loop_add+0x440/0x760 [ 19.742113][ T377] ? vsprintf+0x40/0x40 [ 19.746248][ T377] device_add_disk+0x2a/0x40 [ 19.750809][ T377] loop_add+0x58f/0x760 [ 19.754938][ T377] loop_control_ioctl+0x564/0x740 [ 19.759934][ T377] ? loop_remove+0xb0/0xb0 [ 19.764324][ T377] ? _raw_spin_unlock_irq+0x4e/0x70 [ 19.769494][ T377] ? ptrace_notify+0x248/0x340 [ 19.774243][ T377] ? do_notify_parent+0xa40/0xa40 [ 19.779245][ T377] ? __fpregs_load_activate+0x1e7/0x370 [ 19.784763][ T377] ? security_file_ioctl+0xb1/0xd0 [ 19.789844][ T377] ? loop_remove+0xb0/0xb0 [ 19.794232][ T377] __se_sys_ioctl+0x115/0x190 [ 19.798881][ T377] __x64_sys_ioctl+0x7b/0x90 [ 19.803445][ T377] do_syscall_64+0x34/0x70 [ 19.807833][ T377] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 19.813697][ T377] RIP: 0033:0x7f9f417ad069 [ 19.818087][ T377] 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 [ 19.837668][ T377] RSP: 002b:00007ffcc290bcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 19.846053][ T377] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9f417ad069 [ 19.853999][ T377] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 19.861942][ T377] RBP: 00007ffcc290bcd0 R08: 0000000000000002 R09: 0000000000000001 [pid 377] ioctl(3, LOOP_CTL_ADD, 0) = 0 [pid 377] ioctl(3, LOOP_CTL_REMOVE, 0) = 0 [pid 377] exit_group(0) = ? [pid 377] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=377, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555bb85d0) = 378 ./strace-static-x86_64: Process 378 attached [pid 378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 378] setpgid(0, 0) = 0 [pid 378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 378] write(3, "1000", 4) = 4 [pid 378] close(3) = 0 [pid 378] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 378] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 378] write(4, "71", 2) = 2 [ 19.869888][ T377] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 19.877835][ T377] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 19.921490][ T378] FAULT_INJECTION: forcing a failure. [ 19.921490][ T378] name failslab, interval 1, probability 0, space 0, times 0 [ 19.934237][ T378] CPU: 1 PID: 378 Comm: syz-executor609 Not tainted 5.10.135-syzkaller-01839-g30abcdabf21e #0 [ 19.944449][ T378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 19.954493][ T378] Call Trace: [ 19.957761][ T378] dump_stack_lvl+0x1e2/0x24b [ 19.962426][ T378] ? panic+0x7d7/0x7d7 [ 19.966472][ T378] ? entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 19.972505][ T378] ? bfq_pos_tree_add_move+0x43e/0x43e [ 19.977932][ T378] dump_stack+0x15/0x17 [ 19.982062][ T378] should_fail+0x3c0/0x510 [ 19.986453][ T378] __should_failslab+0x9f/0xe0 [ 19.991184][ T378] should_failslab+0x9/0x20 [ 19.995658][ T378] kmem_cache_alloc+0x3f/0x300 [ 20.000390][ T378] ? security_inode_alloc+0x29/0x140 [ 20.005642][ T378] security_inode_alloc+0x29/0x140 [ 20.010720][ T378] inode_init_always+0x3c5/0x950 [ 20.015626][ T378] new_inode_pseudo+0x93/0x220 [ 20.020358][ T378] new_inode+0x28/0x1c0 [ 20.024488][ T378] ? start_creating+0x206/0x320 [ 20.029308][ T378] __debugfs_create_file+0x143/0x4a0 [ 20.034661][ T378] ? up_write+0x19/0xd0 [ 20.038811][ T378] debugfs_create_file+0x4a/0x60 [ 20.043718][ T378] bdi_register_va+0x2ab/0x600 [ 20.048451][ T378] bdi_register+0xd1/0x120 [ 20.052839][ T378] ? __device_add_disk+0x536/0x11d0 [ 20.058020][ T378] ? bdi_register_va+0x600/0x600 [ 20.062934][ T378] ? vsnprintf+0x1bfd/0x1cd0 [ 20.067493][ T378] ? __kasan_check_read+0x11/0x20 [ 20.072490][ T378] ? blk_alloc_devt+0xd4/0x320 [ 20.077224][ T378] __device_add_disk+0x5cb/0x11d0 [ 20.082216][ T378] ? device_add_disk+0x40/0x40 [ 20.086952][ T378] ? loop_add+0x440/0x760 [ 20.091259][ T378] ? vsprintf+0x40/0x40 [ 20.095383][ T378] device_add_disk+0x2a/0x40 [ 20.099945][ T378] loop_add+0x58f/0x760 [ 20.104072][ T378] loop_control_ioctl+0x564/0x740 [ 20.109092][ T378] ? loop_remove+0xb0/0xb0 [ 20.113486][ T378] ? _raw_spin_unlock_irq+0x4e/0x70 [ 20.118671][ T378] ? ptrace_notify+0x248/0x340 [ 20.123405][ T378] ? do_notify_parent+0xa40/0xa40 [ 20.128398][ T378] ? __fpregs_load_activate+0x1e7/0x370 [ 20.133915][ T378] ? security_file_ioctl+0xb1/0xd0 [ 20.139003][ T378] ? loop_remove+0xb0/0xb0 [ 20.143390][ T378] __se_sys_ioctl+0x115/0x190 [ 20.148039][ T378] __x64_sys_ioctl+0x7b/0x90 [ 20.152598][ T378] do_syscall_64+0x34/0x70 [ 20.156994][ T378] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 20.162856][ T378] RIP: 0033:0x7f9f417ad069 [ 20.167248][ 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 [ 20.186829][ T378] RSP: 002b:00007ffcc290bcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.195209][ T378] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9f417ad069 [ 20.203154][ T378] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 20.211103][ T378] RBP: 00007ffcc290bcd0 R08: 0000000000000002 R09: 0000000000000001 [pid 378] ioctl(3, LOOP_CTL_ADD, 0) = 0 [ 20.219047][ T378] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 20.227001][ T378] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.235045][ T378] debugfs: out of free dentries, can not create file 'stats' [pid 378] ioctl(3, LOOP_CTL_REMOVE, 0) = 0 [pid 378] exit_group(0) = ? [pid 378] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=378, 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./strace-static-x86_64: Process 379 attached , child_tidptr=0x555555bb85d0) = 379 [pid 379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 379] setpgid(0, 0) = 0 [pid 379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 379] write(3, "1000", 4) = 4 [pid 379] close(3) = 0 [pid 379] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 379] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 379] write(4, "71", 2) = 2 [ 20.290629][ T379] FAULT_INJECTION: forcing a failure. [ 20.290629][ T379] name failslab, interval 1, probability 0, space 0, times 0 [ 20.303320][ T379] CPU: 1 PID: 379 Comm: syz-executor609 Not tainted 5.10.135-syzkaller-01839-g30abcdabf21e #0 [ 20.313545][ T379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 20.323579][ T379] Call Trace: [ 20.326872][ T379] dump_stack_lvl+0x1e2/0x24b [ 20.331523][ T379] ? panic+0x7d7/0x7d7 [ 20.335597][ T379] ? bfq_pos_tree_add_move+0x43e/0x43e [ 20.341117][ T379] ? __kasan_kmalloc+0x9/0x10 [ 20.345782][ T379] ? kobj_map+0x72/0x6f0 [ 20.350000][ T379] ? __device_add_disk+0x663/0x11d0 [ 20.355167][ T379] ? device_add_disk+0x2a/0x40 [ 20.359902][ T379] ? loop_control_ioctl+0x564/0x740 [ 20.365070][ T379] ? __se_sys_ioctl+0x115/0x190 [ 20.369897][ T379] ? __x64_sys_ioctl+0x7b/0x90 [ 20.374639][ T379] dump_stack+0x15/0x17 [ 20.378795][ T379] should_fail+0x3c0/0x510 [ 20.383194][ T379] ? kvasprintf_const+0x139/0x180 [ 20.388199][ T379] __should_failslab+0x9f/0xe0 [ 20.392943][ T379] should_failslab+0x9/0x20 [ 20.397423][ T379] __kmalloc_track_caller+0x5f/0x350 [ 20.402683][ T379] kstrdup_const+0x55/0x90 [ 20.407077][ T379] kvasprintf_const+0x139/0x180 [ 20.411930][ T379] kobject_set_name_vargs+0x61/0x120 [ 20.417193][ T379] dev_set_name+0xd1/0x120 [ 20.421584][ T379] ? __kmalloc+0x1f7/0x360 [ 20.425974][ T379] ? get_device+0x30/0x30 [ 20.430285][ T379] ? kobj_map+0x6ad/0x6f0 [ 20.434601][ T379] __device_add_disk+0x6e5/0x11d0 [ 20.439603][ T379] ? device_add_disk+0x40/0x40 [ 20.444342][ T379] ? vsprintf+0x40/0x40 [ 20.448475][ T379] device_add_disk+0x2a/0x40 [ 20.453056][ T379] loop_add+0x58f/0x760 [ 20.457188][ T379] loop_control_ioctl+0x564/0x740 [ 20.462203][ T379] ? loop_remove+0xb0/0xb0 [ 20.466597][ T379] ? _raw_spin_unlock_irq+0x4e/0x70 [ 20.471771][ T379] ? ptrace_notify+0x248/0x340 [ 20.476527][ T379] ? do_notify_parent+0xa40/0xa40 [ 20.481533][ T379] ? __fpregs_load_activate+0x1e7/0x370 [ 20.487059][ T379] ? security_file_ioctl+0xb1/0xd0 [ 20.492145][ T379] ? loop_remove+0xb0/0xb0 [ 20.496538][ T379] __se_sys_ioctl+0x115/0x190 [ 20.501190][ T379] __x64_sys_ioctl+0x7b/0x90 [ 20.505756][ T379] do_syscall_64+0x34/0x70 [ 20.510145][ T379] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 20.516013][ T379] RIP: 0033:0x7f9f417ad069 [ 20.520404][ T379] 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 [ 20.539980][ T379] RSP: 002b:00007ffcc290bcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.548368][ T379] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9f417ad069 [ 20.556313][ T379] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 20.564263][ T379] RBP: 00007ffcc290bcd0 R08: 0000000000000002 R09: 0000000000000001 [ 20.572209][ T379] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 20.580154][ T379] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.588307][ T379] kobject_add_internal failed for queue (error: -2 parent: (null)) [ 20.596297][ T379] ------------[ cut here ]------------ [ 20.601735][ T379] WARNING: CPU: 0 PID: 379 at fs/sysfs/file.c:328 sysfs_create_files+0x215/0x4a0 [ 20.611216][ T379] Modules linked in: [ 20.615094][ T379] CPU: 0 PID: 379 Comm: syz-executor609 Not tainted 5.10.135-syzkaller-01839-g30abcdabf21e #0 [ 20.625485][ T379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 20.635712][ T379] RIP: 0010:sysfs_create_files+0x215/0x4a0 [ 20.641501][ T379] 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 fe 9a ff <0f> 0b c7 44 24 04 ea ff ff ff 48 b9 00 00 00 00 00 fc ff df 48 8b [ 20.661192][ T379] RSP: 0018:ffffc900002bfae0 EFLAGS: 00010293 [ 20.667333][ T379] RAX: ffffffff81d1c221 RBX: ffff888101bc2098 RCX: ffff8881043ebb40 [ 20.675287][ T379] RDX: 0000000000000000 RSI: ffffffff8653a4c0 RDI: ffff888101bc2068 [ 20.683349][ T379] RBP: ffffc900002bfbb0 R08: ffffffff826b9618 R09: ffffed102127669c [ 20.691413][ T379] R10: ffffed102127669c R11: 1ffff1102127669b R12: 0000000000000000 [ 20.699435][ T379] R13: ffffffff85431b20 R14: ffff888101bc2068 R15: ffffffff8653a4c0 [ 20.707456][ T379] FS: 0000555555bb8300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 20.716432][ T379] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.722996][ T379] CR2: 00007f9f41805144 CR3: 0000000101db1000 CR4: 00000000003506b0 [ 20.731038][ T379] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.739062][ T379] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.747099][ T379] Call Trace: [ 20.750370][ T379] ? sysfs_create_file_ns+0x2a0/0x2a0 [ 20.755823][ T379] ? __kasan_check_write+0x14/0x20 [ 20.760916][ T379] ? kobject_get+0xd2/0x120 [ 20.765396][ T379] __device_add_disk+0x9cb/0x11d0 [ 20.770503][ T379] ? device_add_disk+0x40/0x40 [ 20.775253][ T379] ? vsprintf+0x40/0x40 [ 20.779481][ T379] device_add_disk+0x2a/0x40 [ 20.784053][ T379] loop_add+0x58f/0x760 [ 20.788282][ T379] loop_control_ioctl+0x564/0x740 [ 20.793286][ T379] ? loop_remove+0xb0/0xb0 [ 20.797760][ T379] ? _raw_spin_unlock_irq+0x4e/0x70 [ 20.802943][ T379] ? ptrace_notify+0x248/0x340 [ 20.807793][ T379] ? do_notify_parent+0xa40/0xa40 [ 20.812816][ T379] ? __fpregs_load_activate+0x1e7/0x370 [ 20.818420][ T379] ? security_file_ioctl+0xb1/0xd0 [ 20.823510][ T379] ? loop_remove+0xb0/0xb0 [ 20.828004][ T379] __se_sys_ioctl+0x115/0x190 [ 20.832670][ T379] __x64_sys_ioctl+0x7b/0x90 [ 20.837346][ T379] do_syscall_64+0x34/0x70 [ 20.841746][ T379] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 20.847724][ T379] RIP: 0033:0x7f9f417ad069 [ 20.852121][ T379] 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 [ 20.871796][ T379] RSP: 002b:00007ffcc290bcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.880268][ T379] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9f417ad069 [ 20.888308][ T379] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 20.896348][ T379] RBP: 00007ffcc290bcd0 R08: 0000000000000002 R09: 0000000000000001 [ 20.904298][ T379] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 20.912357][ T379] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.920377][ T379] ---[ end trace 4041306a2c41bfb7 ]--- [ 20.925873][ T379] ------------[ cut here ]------------ [ 20.931305][ T379] kernfs: can not remove 'events', no directory [ 20.937658][ T379] WARNING: CPU: 0 PID: 379 at fs/kernfs/dir.c:1515 kernfs_remove_by_name_ns+0x65/0x90 [ 20.947252][ T379] Modules linked in: [ 20.951135][ T379] CPU: 0 PID: 379 Comm: syz-executor609 Tainted: G W 5.10.135-syzkaller-01839-g30abcdabf21e #0 [ 20.962821][ T379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 20.972957][ T379] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 20.979158][ T379] Code: 48 89 c3 e8 7d 5c 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 6c 5c 9b ff 48 c7 c7 80 1a 2d 85 4c 89 fe 31 c0 e8 1b 94 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 4d 5c 9b ff bb fe ff ff ff 48 c7 c7 [ 20.998822][ T379] RSP: 0018:ffffc900002bfab8 EFLAGS: 00010246 [ 21.004882][ T379] RAX: 9dc652c5ce1eb100 RBX: 0000000000000000 RCX: ffff8881043ebb40 [ 21.012968][ T379] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 21.021008][ T379] RBP: ffffc900002bfad0 R08: ffffffff8153b368 R09: ffffed103ee0a5e0 [ 21.029040][ T379] R10: ffffed103ee0a5e0 R11: 1ffff1103ee0a5df R12: ffffffff8653a4c0 [ 21.037085][ T379] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff85431b00 [ 21.045033][ T379] FS: 0000555555bb8300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 21.054056][ T379] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.060698][ T379] CR2: 00007f9f41805144 CR3: 0000000101db1000 CR4: 00000000003506b0 [ 21.068735][ T379] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.076790][ T379] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.084761][ T379] Call Trace: [ 21.088135][ T379] sysfs_create_files+0x40a/0x4a0 [ 21.093133][ T379] ? sysfs_create_file_ns+0x2a0/0x2a0 [ 21.098681][ T379] ? __kasan_check_write+0x14/0x20 [ 21.103771][ T379] ? kobject_get+0xd2/0x120 [ 21.108495][ T379] __device_add_disk+0x9cb/0x11d0 [ 21.113503][ T379] ? device_add_disk+0x40/0x40 [ 21.118381][ T379] ? vsprintf+0x40/0x40 [ 21.122512][ T379] device_add_disk+0x2a/0x40 [ 21.127191][ T379] loop_add+0x58f/0x760 [ 21.131332][ T379] loop_control_ioctl+0x564/0x740 [ 21.136440][ T379] ? loop_remove+0xb0/0xb0 [ 21.140850][ T379] ? _raw_spin_unlock_irq+0x4e/0x70 [ 21.146146][ T379] ? ptrace_notify+0x248/0x340 [ 21.150884][ T379] ? do_notify_parent+0xa40/0xa40 [ 21.155984][ T379] ? __fpregs_load_activate+0x1e7/0x370 [ 21.161513][ T379] ? security_file_ioctl+0xb1/0xd0 [ 21.166727][ T379] ? loop_remove+0xb0/0xb0 [ 21.171135][ T379] __se_sys_ioctl+0x115/0x190 [ 21.175884][ T379] __x64_sys_ioctl+0x7b/0x90 [ 21.180449][ T379] do_syscall_64+0x34/0x70 [ 21.184838][ T379] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 21.190835][ T379] RIP: 0033:0x7f9f417ad069 [ 21.195236][ T379] 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 [ 21.214918][ T379] RSP: 002b:00007ffcc290bcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 21.223377][ T379] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9f417ad069 [ 21.231361][ T379] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [pid 379] ioctl(3, LOOP_CTL_ADD, 0) = 0 [ 21.239321][ T379] RBP: 00007ffcc290bcd0 R08: 0000000000000002 R09: 0000000000000001 [ 21.247289][ T379] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 21.255241][ T379] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 21.263209][ T379] ---[ end trace 4041306a2c41bfb8 ]--- [ 21.268656][ T379] loop0: failed to create sysfs files for events [ 21.275521][ T379] ------------[ cut here ]------------ [ 21.280999][ T379] kernfs: can not remove 'events', no directory [ 21.287305][ T379] WARNING: CPU: 0 PID: 379 at fs/kernfs/dir.c:1515 kernfs_remove_by_name_ns+0x65/0x90 [ 21.296835][ T379] Modules linked in: [ 21.300717][ T379] CPU: 0 PID: 379 Comm: syz-executor609 Tainted: G W 5.10.135-syzkaller-01839-g30abcdabf21e #0 [ 21.312325][ T379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 21.322395][ T379] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 21.328550][ T379] Code: 48 89 c3 e8 7d 5c 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 6c 5c 9b ff 48 c7 c7 80 1a 2d 85 4c 89 fe 31 c0 e8 1b 94 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 4d 5c 9b ff bb fe ff ff ff 48 c7 c7 [ 21.348155][ T379] RSP: 0018:ffffc900002bfbf8 EFLAGS: 00010246 [ 21.354195][ T379] RAX: 9dc652c5ce1eb100 RBX: 0000000000000000 RCX: ffff8881043ebb40 [ 21.362284][ T379] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 21.370247][ T379] RBP: ffffc900002bfc10 R08: ffffffff8153b368 R09: ffffed103ee0a5e0 [ 21.378209][ T379] R10: ffffed103ee0a5e0 R11: 1ffff1103ee0a5df R12: 0000000000000000 [ 21.386186][ T379] R13: ffffffff8653a4c0 R14: 0000000000000000 R15: ffffffff85431b00 [ 21.394132][ T379] FS: 0000555555bb8300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 21.403054][ T379] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.409628][ T379] CR2: 00007f9f41805144 CR3: 0000000101db1000 CR4: 00000000003506b0 [ 21.417601][ T379] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.425559][ T379] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.433524][ T379] Call Trace: [ 21.436804][ T379] sysfs_remove_files+0xab/0x110 [ 21.441712][ T379] del_gendisk+0x278/0xe20 [ 21.446127][ T379] ? device_add_disk_no_queue_reg+0x30/0x30 [ 21.452014][ T379] ? __radix_tree_delete+0x2ba/0x380 [ 21.457297][ T379] ? radix_tree_delete_item+0x261/0x360 [ 21.462831][ T379] loop_remove+0x46/0xb0 [ 21.467078][ T379] loop_control_ioctl+0x67f/0x740 [ 21.472083][ T379] ? loop_remove+0xb0/0xb0 [ 21.476492][ T379] ? _raw_spin_unlock_irq+0x4e/0x70 [ 21.481679][ T379] ? ptrace_notify+0x248/0x340 [ 21.486435][ T379] ? do_notify_parent+0xa40/0xa40 [ 21.491444][ T379] ? __fpregs_load_activate+0x1e7/0x370 [ 21.496982][ T379] ? security_file_ioctl+0xb1/0xd0 [ 21.502077][ T379] ? loop_remove+0xb0/0xb0 [ 21.506491][ T379] __se_sys_ioctl+0x115/0x190 [ 21.511153][ T379] __x64_sys_ioctl+0x7b/0x90 [ 21.515737][ T379] do_syscall_64+0x34/0x70 [ 21.520140][ T379] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 21.526027][ T379] RIP: 0033:0x7f9f417ad069 [ 21.530430][ T379] 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 [ 21.550026][ T379] RSP: 002b:00007ffcc290bcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 21.558440][ T379] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9f417ad069 [ 21.566414][ T379] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 21.574371][ T379] RBP: 00007ffcc290bcd0 R08: 0000000000000001 R09: 0000000000000001 [ 21.582337][ T379] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000004 [ 21.590319][ T379] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 21.598285][ T379] ---[ end trace 4041306a2c41bfb9 ]--- [ 21.603762][ T379] ------------[ cut here ]------------ [ 21.609217][ T379] kernfs: can not remove 'events_async', no directory [ 21.616102][ T379] WARNING: CPU: 0 PID: 379 at fs/kernfs/dir.c:1515 kernfs_remove_by_name_ns+0x65/0x90 [ 21.625641][ T379] Modules linked in: [ 21.629543][ T379] CPU: 0 PID: 379 Comm: syz-executor609 Tainted: G W 5.10.135-syzkaller-01839-g30abcdabf21e #0 [ 21.641154][ T379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 21.651209][ T379] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 21.657354][ T379] Code: 48 89 c3 e8 7d 5c 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 6c 5c 9b ff 48 c7 c7 80 1a 2d 85 4c 89 fe 31 c0 e8 1b 94 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 4d 5c 9b ff bb fe ff ff ff 48 c7 c7 [ 21.676982][ T379] RSP: 0018:ffffc900002bfbf8 EFLAGS: 00010246 [ 21.683023][ T379] RAX: 9dc652c5ce1eb100 RBX: 0000000000000000 RCX: ffff8881043ebb40 [ 21.691000][ T379] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 21.698971][ T379] RBP: ffffc900002bfc10 R08: ffffffff8153b368 R09: ffffed103ee0a5e0 [ 21.706955][ T379] R10: ffffed103ee0a5e0 R11: 1ffff1103ee0a5df R12: 0000000000000000 [ 21.714917][ T379] R13: ffffffff8653a4c0 R14: 0000000000000000 R15: ffffffff85431be0 [ 21.722922][ T379] FS: 0000555555bb8300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 21.731838][ T379] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.738414][ T379] CR2: 00007f9f41805144 CR3: 0000000101db1000 CR4: 00000000003506b0 [ 21.746403][ T379] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.754353][ T379] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.762323][ T379] Call Trace: [ 21.765615][ T379] sysfs_remove_files+0xab/0x110 [ 21.770534][ T379] del_gendisk+0x278/0xe20 [ 21.774924][ T379] ? device_add_disk_no_queue_reg+0x30/0x30 [ 21.780810][ T379] ? __radix_tree_delete+0x2ba/0x380 [ 21.786086][ T379] ? radix_tree_delete_item+0x261/0x360 [ 21.791601][ T379] loop_remove+0x46/0xb0 [ 21.795834][ T379] loop_control_ioctl+0x67f/0x740 [ 21.800842][ T379] ? loop_remove+0xb0/0xb0 [ 21.805250][ T379] ? _raw_spin_unlock_irq+0x4e/0x70 [ 21.810447][ T379] ? ptrace_notify+0x248/0x340 [ 21.815198][ T379] ? do_notify_parent+0xa40/0xa40 [ 21.820215][ T379] ? __fpregs_load_activate+0x1e7/0x370 [ 21.825756][ T379] ? security_file_ioctl+0xb1/0xd0 [ 21.830838][ T379] ? loop_remove+0xb0/0xb0 [ 21.835336][ T379] __se_sys_ioctl+0x115/0x190 [ 21.840008][ T379] __x64_sys_ioctl+0x7b/0x90 [ 21.844588][ T379] do_syscall_64+0x34/0x70 [ 21.849039][ T379] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 21.854997][ T379] RIP: 0033:0x7f9f417ad069 [ 21.859414][ T379] 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 [ 21.879016][ T379] RSP: 002b:00007ffcc290bcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 21.887422][ T379] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9f417ad069 [ 21.895375][ T379] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 21.903345][ T379] RBP: 00007ffcc290bcd0 R08: 0000000000000001 R09: 0000000000000001 [ 21.911313][ T379] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000004 [ 21.919278][ T379] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 21.927248][ T379] ---[ end trace 4041306a2c41bfba ]--- [ 21.932684][ T379] ------------[ cut here ]------------ [ 21.938133][ T379] kernfs: can not remove 'events_poll_msecs', no directory [ 21.945350][ T379] WARNING: CPU: 0 PID: 379 at fs/kernfs/dir.c:1515 kernfs_remove_by_name_ns+0x65/0x90 [ 21.954977][ T379] Modules linked in: [ 21.958876][ T379] CPU: 0 PID: 379 Comm: syz-executor609 Tainted: G W 5.10.135-syzkaller-01839-g30abcdabf21e #0 [ 21.970495][ T379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 21.980558][ T379] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 21.986756][ T379] Code: 48 89 c3 e8 7d 5c 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 6c 5c 9b ff 48 c7 c7 80 1a 2d 85 4c 89 fe 31 c0 e8 1b 94 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 4d 5c 9b ff bb fe ff ff ff 48 c7 c7 [ 22.006357][ T379] RSP: 0018:ffffc900002bfbf8 EFLAGS: 00010246 [ 22.012395][ T379] RAX: 9dc652c5ce1eb100 RBX: 0000000000000000 RCX: ffff8881043ebb40 [ 22.020376][ T379] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 22.028340][ T379] RBP: ffffc900002bfc10 R08: ffffffff8153b368 R09: ffffed103ee0a5e0 [ 22.036323][ T379] R10: ffffed103ee0a5e0 R11: 1ffff1103ee0a5df R12: 0000000000000000 [ 22.044284][ T379] R13: ffffffff8653a4c0 R14: 0000000000000000 R15: ffffffff85431c40 [ 22.052253][ T379] FS: 0000555555bb8300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 22.061168][ T379] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.067768][ T379] CR2: 00007f9f41805144 CR3: 0000000101db1000 CR4: 00000000003506b0 [ 22.075741][ T379] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.083690][ T379] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.091681][ T379] Call Trace: [ 22.094956][ T379] sysfs_remove_files+0xab/0x110 [ 22.099903][ T379] del_gendisk+0x278/0xe20 [ 22.104309][ T379] ? device_add_disk_no_queue_reg+0x30/0x30 [ 22.110199][ T379] ? __radix_tree_delete+0x2ba/0x380 [ 22.115474][ T379] ? radix_tree_delete_item+0x261/0x360 [ 22.121022][ T379] loop_remove+0x46/0xb0 [ 22.125252][ T379] loop_control_ioctl+0x67f/0x740 [ 22.130310][ T379] ? loop_remove+0xb0/0xb0 [ 22.134707][ T379] ? _raw_spin_unlock_irq+0x4e/0x70 [ 22.139901][ T379] ? ptrace_notify+0x248/0x340 [ 22.144652][ T379] ? do_notify_parent+0xa40/0xa40 [ 22.149678][ T379] ? __fpregs_load_activate+0x1e7/0x370 [ 22.155210][ T379] ? security_file_ioctl+0xb1/0xd0 [ 22.160326][ T379] ? loop_remove+0xb0/0xb0 [ 22.164732][ T379] __se_sys_ioctl+0x115/0x190 [ 22.169418][ T379] __x64_sys_ioctl+0x7b/0x90 [ 22.173998][ T379] do_syscall_64+0x34/0x70 [ 22.178414][ T379] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 22.184295][ T379] RIP: 0033:0x7f9f417ad069 [ 22.188712][ T379] 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 [ 22.208314][ T379] RSP: 002b:00007ffcc290bcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.216726][ T379] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9f417ad069 [ 22.224718][ T379] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 22.232697][ T379] RBP: 00007ffcc290bcd0 R08: 0000000000000001 R09: 0000000000000001 [ 22.240659][ T379] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000004 [ 22.248628][ T379] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 22.256590][ T379] ---[ end trace 4041306a2c41bfbb ]--- [ 22.262057][ T379] ------------[ cut here ]------------ [ 22.267526][ T379] kernfs: can not remove 'bdi', no directory [ 22.273531][ T379] WARNING: CPU: 0 PID: 379 at fs/kernfs/dir.c:1515 kernfs_remove_by_name_ns+0x65/0x90 [ 22.283061][ T379] Modules linked in: [ 22.286965][ T379] CPU: 0 PID: 379 Comm: syz-executor609 Tainted: G W 5.10.135-syzkaller-01839-g30abcdabf21e #0 [ 22.298584][ T379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 22.308654][ T379] RIP: 0010:kernfs_remove_by_name_ns+0x65/0x90 [ 22.314786][ T379] Code: 48 89 c3 e8 7d 5c 9b ff 48 89 df e8 c5 ee ff ff 31 db eb 29 e8 6c 5c 9b ff 48 c7 c7 80 1a 2d 85 4c 89 fe 31 c0 e8 1b 94 6d ff <0f> 0b bb fe ff ff ff eb 16 e8 4d 5c 9b ff bb fe ff ff ff 48 c7 c7 [ 22.334390][ T379] RSP: 0018:ffffc900002bfc18 EFLAGS: 00010246 [ 22.340447][ T379] RAX: 9dc652c5ce1eb100 RBX: 0000000000000000 RCX: ffff8881043ebb40 [ 22.348413][ T379] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 22.356374][ T379] RBP: ffffc900002bfc30 R08: ffffffff8153b368 R09: ffffed103ee0a5e0 [ 22.364315][ T379] R10: ffffed103ee0a5e0 R11: 1ffff1103ee0a5df R12: 0000000000000240 [ 22.372294][ T379] R13: ffff888101bc2030 R14: 0000000000000000 R15: ffffffff854314e0 [ 22.380261][ T379] FS: 0000555555bb8300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 22.389184][ T379] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.395774][ T379] CR2: 00007f9f41805144 CR3: 0000000101db1000 CR4: 00000000003506b0 [ 22.403725][ T379] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.411721][ T379] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.419681][ T379] Call Trace: [ 22.422943][ T379] sysfs_remove_link+0x50/0x60 [ 22.427714][ T379] del_gendisk+0x7cd/0xe20 [ 22.432130][ T379] ? device_add_disk_no_queue_reg+0x30/0x30 [ 22.438017][ T379] ? __radix_tree_delete+0x2ba/0x380 [ 22.443304][ T379] ? radix_tree_delete_item+0x261/0x360 [ 22.448844][ T379] loop_remove+0x46/0xb0 [ 22.453081][ T379] loop_control_ioctl+0x67f/0x740 [ 22.458119][ T379] ? loop_remove+0xb0/0xb0 [ 22.462522][ T379] ? _raw_spin_unlock_irq+0x4e/0x70 [ 22.467729][ T379] ? ptrace_notify+0x248/0x340 [ 22.472480][ T379] ? do_notify_parent+0xa40/0xa40 [ 22.477517][ T379] ? __fpregs_load_activate+0x1e7/0x370 [ 22.483052][ T379] ? security_file_ioctl+0xb1/0xd0 [ 22.488197][ T379] ? loop_remove+0xb0/0xb0 [ 22.492601][ T379] __se_sys_ioctl+0x115/0x190 [ 22.497276][ T379] __x64_sys_ioctl+0x7b/0x90 [ 22.501874][ T379] do_syscall_64+0x34/0x70 [ 22.506287][ T379] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 22.512168][ T379] RIP: 0033:0x7f9f417ad069 [ 22.516607][ T379] 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 [ 22.536215][ T379] RSP: 002b:00007ffcc290bcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.544611][ T379] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9f417ad069 [ 22.552584][ T379] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 22.560547][ T379] RBP: 00007ffcc290bcd0 R08: 0000000000000001 R09: 0000000000000001 [ 22.568523][ T379] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000004 [ 22.576486][ T379] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 22.584433][ T379] ---[ end trace 4041306a2c41bfbc ]--- [ 22.590276][ T379] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 22.601971][ T379] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 22.610355][ T379] CPU: 0 PID: 379 Comm: syz-executor609 Tainted: G W 5.10.135-syzkaller-01839-g30abcdabf21e #0 [ 22.621959][ T379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 22.632000][ T379] RIP: 0010:strlen+0x3a/0x80 [ 22.636570][ T379] 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 [ 22.656163][ T379] RSP: 0018:ffffc900002bfb68 EFLAGS: 00010246 [ 22.662203][ T379] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8881043ebb40 [ 22.670156][ T379] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 22.678100][ T379] RBP: ffffc900002bfb88 R08: ffffffff81d1390c R09: fffff52000057f75 [ 22.686049][ T379] R10: fffff52000057f75 R11: 1ffff92000057f74 R12: ffffffffffffffff [ 22.693991][ T379] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 22.701935][ T379] FS: 0000555555bb8300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 22.710834][ T379] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.717388][ T379] CR2: 00007f9f41805144 CR3: 0000000101db1000 CR4: 00000000003506b0 [ 22.725335][ T379] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.733281][ T379] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.741221][ T379] Call Trace: [ 22.744484][ T379] kernfs_name_hash+0x21/0x240 [ 22.749218][ T379] kernfs_find_ns+0x72/0x280 [ 22.753780][ T379] kernfs_remove_by_name_ns+0x36/0x90 [ 22.759125][ T379] sysfs_remove_link+0x50/0x60 [ 22.763859][ T379] del_gendisk+0xbe0/0xe20 [ 22.768249][ T379] ? device_add_disk_no_queue_reg+0x30/0x30 [ 22.774124][ T379] ? __radix_tree_delete+0x2ba/0x380 [ 22.779395][ T379] ? radix_tree_delete_item+0x261/0x360 [ 22.784912][ T379] loop_remove+0x46/0xb0 [ 22.789125][ T379] loop_control_ioctl+0x67f/0x740 [ 22.794121][ T379] ? loop_remove+0xb0/0xb0 [ 22.798518][ T379] ? _raw_spin_unlock_irq+0x4e/0x70 [ 22.803686][ T379] ? ptrace_notify+0x248/0x340 [ 22.808419][ T379] ? do_notify_parent+0xa40/0xa40 [ 22.813414][ T379] ? __fpregs_load_activate+0x1e7/0x370 [ 22.818930][ T379] ? security_file_ioctl+0xb1/0xd0 [ 22.824011][ T379] ? loop_remove+0xb0/0xb0 [ 22.828397][ T379] __se_sys_ioctl+0x115/0x190 [ 22.833047][ T379] __x64_sys_ioctl+0x7b/0x90 [ 22.837609][ T379] do_syscall_64+0x34/0x70 [ 22.842007][ T379] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 22.847870][ T379] RIP: 0033:0x7f9f417ad069 [ 22.852258][ T379] 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 [ 22.871834][ T379] RSP: 002b:00007ffcc290bcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.880217][ T379] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f9f417ad069 [ 22.888161][ T379] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 22.896111][ T379] RBP: 00007ffcc290bcd0 R08: 0000000000000001 R09: 0000000000000001 [ 22.904401][ T379] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000004 [ 22.912346][ T379] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 22.920287][ T379] Modules linked in: [ 22.924286][ T379] ---[ end trace 4041306a2c41bfbd ]--- [ 22.929803][ T379] RIP: 0010:strlen+0x3a/0x80 [ 22.934425][ T379] 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 [ 22.954054][ T379] RSP: 0018:ffffc900002bfb68 EFLAGS: 00010246 [ 22.960129][ T379] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8881043ebb40 [ 22.968119][ T379] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 22.976088][ T379] RBP: ffffc900002bfb88 R08: ffffffff81d1390c R09: fffff52000057f75 [ 22.984049][ T379] R10: fffff52000057f75 R11: 1ffff92000057f74 R12: ffffffffffffffff [ 22.992030][ T379] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 22.999996][ T379] FS: 0000555555bb8300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 23.008917][ T379] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.015479][ T379] CR2: 00007f9f4176e8fe CR3: 0000000101db1000 CR4: 00000000003506a0 [ 23.023452][ T379] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.031425][ T379] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.039395][ T379] Kernel panic - not syncing: Fatal exception [ 23.045597][ T379] Kernel Offset: disabled [ 23.049901][ T379] Rebooting in 86400 seconds..