./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor503682202 <...> [ 4.756856][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #10!!! Starting sshd: OK syzkaller syzkaller login: [ 9.926896][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 10.731306][ T23] kauditd_printk_skb: 60 callbacks suppressed [ 10.731312][ T23] audit: type=1400 audit(1675607464.789:71): 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 [ 10.736938][ T23] audit: type=1400 audit(1675607464.799:72): avc: denied { write } for pid=289 comm="sh" path="pipe:[984]" dev="pipefs" ino=984 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 Warning: Permanently added '10.128.1.3' (ECDSA) to the list of known hosts. execve("./syz-executor503682202", ["./syz-executor503682202"], 0x7fff6175dc90 /* 10 vars */) = 0 brk(NULL) = 0x555555e17000 brk(0x555555e17c40) = 0x555555e17c40 arch_prctl(ARCH_SET_FS, 0x555555e17300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor503682202", 4096) = 27 brk(0x555555e38c40) = 0x555555e38c40 brk(0x555555e39000) = 0x555555e39000 mprotect(0x7fe4fd8c1000, 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=0x555555e175d0) = 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] sendmmsg(-1, NULL, 0, 0) = -1 EBADF (Bad file descriptor) [pid 372] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [pid 372] getsockname(-1, NULL, NULL) = -1 EBADF (Bad file descriptor) [pid 372] sendmsg(3, NULL, 0) = -1 EFAULT (Bad address) [pid 372] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 4 [pid 372] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 5 [pid 372] write(5, "70", 2) = 2 [pid 372] ioctl(4, LOOP_CTL_ADD, 0) = -1 EEXIST (File exists) [pid 372] ioctl(4, LOOP_CTL_REMOVE, 0) = 0 [pid 372] sendmsg(-1, NULL, MSG_PEEK|MSG_FASTOPEN) = -1 EBADF (Bad file descriptor) [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=0x555555e175d0) = 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] sendmmsg(-1, NULL, 0, 0) = -1 EBADF (Bad file descriptor) [pid 375] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [pid 375] getsockname(-1, NULL, NULL) = -1 EBADF (Bad file descriptor) [pid 375] sendmsg(3, NULL, 0) = -1 EFAULT (Bad address) [pid 375] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 4 [pid 375] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 5 [pid 375] write(5, "70", 2) = 2 [ 19.497904][ T23] audit: type=1400 audit(1675607473.559:73): avc: denied { execmem } for pid=371 comm="syz-executor503" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 19.504877][ T23] audit: type=1400 audit(1675607473.559:74): avc: denied { read } for pid=372 comm="syz-executor503" 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 [ 19.509334][ T23] audit: type=1400 audit(1675607473.559:75): avc: denied { open } for pid=372 comm="syz-executor503" 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 [ 19.514479][ T23] audit: type=1400 audit(1675607473.559:76): avc: denied { ioctl } for pid=372 comm="syz-executor503" 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 [ 19.575837][ T375] FAULT_INJECTION: forcing a failure. [ 19.575837][ T375] name failslab, interval 1, probability 0, space 0, times 1 [ 19.588796][ T375] CPU: 1 PID: 375 Comm: syz-executor503 Not tainted 5.10.161-syzkaller-00019-g416c4356f372 #0 [ 19.599704][ T375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 19.609993][ T375] Call Trace: [ 19.613266][ T375] dump_stack_lvl+0x1e2/0x24b [ 19.618392][ T375] ? panic+0x7d7/0x7d7 [ 19.622455][ T375] ? bfq_pos_tree_add_move+0x43e/0x43e [ 19.627910][ T375] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 19.632937][ T375] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 19.638285][ T375] dump_stack+0x15/0x17 [ 19.642831][ T375] should_fail+0x3c0/0x510 [ 19.647235][ T375] ? kobj_map+0x72/0x6f0 [ 19.651472][ T375] __should_failslab+0x9f/0xe0 [ 19.656213][ T375] should_failslab+0x9/0x20 [ 19.660807][ T375] __kmalloc+0x60/0x360 [ 19.664942][ T375] ? __device_add_disk+0x536/0x11d0 [ 19.670134][ T375] kobj_map+0x72/0x6f0 [ 19.674204][ T375] ? exact_match+0x20/0x20 [ 19.678599][ T375] ? bdev_check_media_change+0x4c0/0x4c0 [ 19.684223][ T375] __device_add_disk+0x663/0x11d0 [ 19.689238][ T375] ? device_add_disk+0x40/0x40 [ 19.693980][ T375] ? loop_add+0x400/0x760 [ 19.698288][ T375] ? vsprintf+0x40/0x40 [ 19.702426][ T375] device_add_disk+0x2a/0x40 [ 19.707137][ T375] loop_add+0x58f/0x760 [ 19.711271][ T375] loop_control_ioctl+0x564/0x740 [ 19.716285][ T375] ? loop_remove+0xb0/0xb0 [ 19.720700][ T375] ? _raw_spin_unlock_irq+0x4e/0x70 [ 19.725892][ T375] ? ptrace_notify+0x248/0x340 [ 19.730631][ T375] ? do_notify_parent+0xa40/0xa40 [ 19.735724][ T375] ? __fpregs_load_activate+0x1e7/0x370 [ 19.741302][ T375] ? security_file_ioctl+0xb1/0xd0 [ 19.746383][ T375] ? loop_remove+0xb0/0xb0 [ 19.750776][ T375] __se_sys_ioctl+0x115/0x190 [ 19.755442][ T375] __x64_sys_ioctl+0x7b/0x90 [ 19.760020][ T375] do_syscall_64+0x34/0x70 [ 19.764413][ T375] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 19.770292][ T375] RIP: 0033:0x7fe4fd8540f9 [ 19.774691][ 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 [ 19.794289][ T375] RSP: 002b:00007ffedd9d6cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 19.802687][ T375] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe4fd8540f9 [ 19.810643][ T375] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000004 [ 19.818593][ T375] RBP: 00007ffedd9d6cf0 R08: 0000000000000002 R09: 0000000000000001 [pid 375] ioctl(4, LOOP_CTL_ADD, 0) = 0 [ 19.826561][ T375] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 19.834763][ T375] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 375] ioctl(4, LOOP_CTL_REMOVE, 0) = 0 [pid 375] sendmsg(-1, NULL, MSG_PEEK|MSG_FASTOPEN) = -1 EBADF (Bad file descriptor) [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./strace-static-x86_64: Process 376 attached , child_tidptr=0x555555e175d0) = 376 [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] sendmmsg(-1, NULL, 0, 0) = -1 EBADF (Bad file descriptor) [pid 376] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [pid 376] getsockname(-1, NULL, NULL) = -1 EBADF (Bad file descriptor) [pid 376] sendmsg(3, NULL, 0) = -1 EFAULT (Bad address) [pid 376] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 4 [pid 376] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 5 [pid 376] write(5, "70", 2) = 2 [ 19.892200][ T376] FAULT_INJECTION: forcing a failure. [ 19.892200][ T376] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 19.905459][ T376] CPU: 0 PID: 376 Comm: syz-executor503 Not tainted 5.10.161-syzkaller-00019-g416c4356f372 #0 [ 19.915775][ T376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 19.925809][ T376] Call Trace: [ 19.929078][ T376] dump_stack_lvl+0x1e2/0x24b [ 19.933823][ T376] ? bfq_pos_tree_add_move+0x43e/0x43e [ 19.939271][ T376] dump_stack+0x15/0x17 [ 19.943413][ T376] should_fail+0x3c0/0x510 [ 19.947959][ T376] should_fail_alloc_page+0x50/0x60 [ 19.953637][ T376] __alloc_pages_nodemask+0x1c0/0x890 [ 19.959008][ T376] ? loop_add+0x58f/0x760 [ 19.963385][ T376] ? loop_control_ioctl+0x564/0x740 [ 19.968613][ T376] ? __se_sys_ioctl+0x115/0x190 [ 19.973452][ T376] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 19.979004][ T376] ? __kasan_check_write+0x14/0x20 [ 19.984378][ T376] ? lockref_get+0x1b3/0x2a0 [ 19.989676][ T376] ? __kasan_check_write+0x14/0x20 [ 19.995619][ T376] __get_free_pages+0xe/0x30 [ 20.000493][ T376] selinux_genfs_get_sid+0x56/0x250 [ 20.005812][ T376] inode_doinit_with_dentry+0x858/0x1030 [ 20.011540][ T376] ? sb_finish_set_opts+0x7f0/0x7f0 [ 20.016728][ T376] ? current_time+0x1c4/0x310 [ 20.021383][ T376] selinux_d_instantiate+0x27/0x40 [ 20.027420][ T376] security_d_instantiate+0xa5/0x100 [ 20.032710][ T376] d_instantiate+0x55/0x90 [ 20.037134][ T376] __debugfs_create_file+0x2d7/0x4a0 [ 20.042412][ T376] ? up_write+0x19/0xd0 [ 20.047781][ T376] debugfs_create_file+0x4a/0x60 [ 20.052694][ T376] bdi_register_va+0x2ab/0x600 [ 20.057445][ T376] bdi_register+0xd1/0x120 [ 20.061843][ T376] ? __device_add_disk+0x536/0x11d0 [ 20.067071][ T376] ? bdi_register_va+0x600/0x600 [ 20.071995][ T376] ? vsnprintf+0x1bfd/0x1cd0 [ 20.076595][ T376] ? __kasan_check_read+0x11/0x20 [ 20.081774][ T376] ? blk_alloc_devt+0xd4/0x320 [ 20.086522][ T376] __device_add_disk+0x5cb/0x11d0 [ 20.091536][ T376] ? device_add_disk+0x40/0x40 [ 20.096276][ T376] ? loop_add+0x400/0x760 [ 20.100591][ T376] ? vsprintf+0x40/0x40 [ 20.104736][ T376] device_add_disk+0x2a/0x40 [ 20.109321][ T376] loop_add+0x58f/0x760 [ 20.113455][ T376] loop_control_ioctl+0x564/0x740 [ 20.118457][ T376] ? loop_remove+0xb0/0xb0 [ 20.122851][ T376] ? _raw_spin_unlock_irq+0x4e/0x70 [ 20.128065][ T376] ? ptrace_notify+0x248/0x340 [ 20.132816][ T376] ? do_notify_parent+0xa40/0xa40 [ 20.137815][ T376] ? __fpregs_load_activate+0x1e7/0x370 [ 20.143353][ T376] ? security_file_ioctl+0xb1/0xd0 [ 20.148439][ T376] ? loop_remove+0xb0/0xb0 [ 20.152835][ T376] __se_sys_ioctl+0x115/0x190 [ 20.157485][ T376] __x64_sys_ioctl+0x7b/0x90 [ 20.162056][ T376] do_syscall_64+0x34/0x70 [ 20.166517][ T376] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 20.172391][ T376] RIP: 0033:0x7fe4fd8540f9 [pid 376] ioctl(4, LOOP_CTL_ADD, 0) = 0 [ 20.176797][ 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 [ 20.196396][ T376] RSP: 002b:00007ffedd9d6cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.204791][ T376] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe4fd8540f9 [ 20.212837][ T376] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000004 [ 20.220791][ T376] RBP: 00007ffedd9d6cf0 R08: 0000000000000002 R09: 0000000000000001 [ 20.228755][ T376] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 20.236718][ T376] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 376] ioctl(4, LOOP_CTL_REMOVE, 0) = 0 [pid 376] sendmsg(-1, NULL, MSG_PEEK|MSG_FASTOPEN) = -1 EBADF (Bad file descriptor) [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=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 377 attached , child_tidptr=0x555555e175d0) = 377 [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] sendmmsg(-1, NULL, 0, 0) = -1 EBADF (Bad file descriptor) [pid 377] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [pid 377] getsockname(-1, NULL, NULL) = -1 EBADF (Bad file descriptor) [pid 377] sendmsg(3, NULL, 0) = -1 EFAULT (Bad address) [pid 377] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 4 [pid 377] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 5 [pid 377] write(5, "70", 2) = 2 [ 20.292759][ T377] FAULT_INJECTION: forcing a failure. [ 20.292759][ T377] name failslab, interval 1, probability 0, space 0, times 0 [ 20.305407][ T377] CPU: 1 PID: 377 Comm: syz-executor503 Not tainted 5.10.161-syzkaller-00019-g416c4356f372 #0 [ 20.315620][ T377] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 20.325672][ T377] Call Trace: [ 20.328956][ T377] dump_stack_lvl+0x1e2/0x24b [ 20.333608][ T377] ? panic+0x7d7/0x7d7 [ 20.337650][ T377] ? bfq_pos_tree_add_move+0x43e/0x43e [ 20.343085][ T377] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 20.348085][ T377] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 20.353271][ T377] dump_stack+0x15/0x17 [ 20.357416][ T377] should_fail+0x3c0/0x510 [ 20.361809][ T377] ? kobj_map+0x72/0x6f0 [ 20.366038][ T377] __should_failslab+0x9f/0xe0 [ 20.370803][ T377] should_failslab+0x9/0x20 [ 20.375294][ T377] __kmalloc+0x60/0x360 [ 20.379434][ T377] ? __device_add_disk+0x536/0x11d0 [ 20.384619][ T377] kobj_map+0x72/0x6f0 [ 20.388676][ T377] ? exact_match+0x20/0x20 [ 20.393073][ T377] ? bdev_check_media_change+0x4c0/0x4c0 [ 20.398687][ T377] __device_add_disk+0x663/0x11d0 [ 20.403694][ T377] ? device_add_disk+0x40/0x40 [ 20.408439][ T377] ? loop_add+0x400/0x760 [ 20.412740][ T377] ? vsprintf+0x40/0x40 [ 20.416880][ T377] device_add_disk+0x2a/0x40 [ 20.421445][ T377] loop_add+0x58f/0x760 [ 20.425588][ T377] loop_control_ioctl+0x564/0x740 [ 20.430585][ T377] ? loop_remove+0xb0/0xb0 [ 20.435012][ T377] ? _raw_spin_unlock_irq+0x4e/0x70 [ 20.440184][ T377] ? ptrace_notify+0x248/0x340 [ 20.444949][ T377] ? do_notify_parent+0xa40/0xa40 [ 20.449955][ T377] ? __fpregs_load_activate+0x1e7/0x370 [ 20.455478][ T377] ? security_file_ioctl+0xb1/0xd0 [ 20.460570][ T377] ? loop_remove+0xb0/0xb0 [ 20.465039][ T377] __se_sys_ioctl+0x115/0x190 [ 20.469698][ T377] __x64_sys_ioctl+0x7b/0x90 [ 20.474267][ T377] do_syscall_64+0x34/0x70 [ 20.478674][ T377] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 20.484563][ T377] RIP: 0033:0x7fe4fd8540f9 [ 20.488974][ 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 [ 20.508646][ T377] RSP: 002b:00007ffedd9d6cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.517214][ T377] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe4fd8540f9 [ 20.525195][ T377] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000004 [ 20.533154][ T377] RBP: 00007ffedd9d6cf0 R08: 0000000000000002 R09: 0000000000000001 [pid 377] ioctl(4, LOOP_CTL_ADD, 0) = 0 [pid 377] ioctl(4, LOOP_CTL_REMOVE, 0) = -1 EBUSY (Device or resource busy) [pid 377] sendmsg(-1, NULL, MSG_PEEK|MSG_FASTOPEN) = -1 EBADF (Bad file descriptor) [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./strace-static-x86_64: Process 378 attached , child_tidptr=0x555555e175d0) = 378 [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] sendmmsg(-1, NULL, 0, 0) = -1 EBADF (Bad file descriptor) [pid 378] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [pid 378] getsockname(-1, NULL, NULL) = -1 EBADF (Bad file descriptor) [pid 378] sendmsg(3, NULL, 0) = -1 EFAULT (Bad address) [pid 378] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 4 [pid 378] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 5 [pid 378] write(5, "70", 2) = 2 [pid 378] ioctl(4, LOOP_CTL_ADD, 0) = -1 EEXIST (File exists) [pid 378] ioctl(4, LOOP_CTL_REMOVE, 0) = 0 [pid 378] sendmsg(-1, NULL, MSG_PEEK|MSG_FASTOPEN) = -1 EBADF (Bad file descriptor) [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=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e175d0) = 379 ./strace-static-x86_64: Process 379 attached [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] sendmmsg(-1, NULL, 0, 0) = -1 EBADF (Bad file descriptor) [pid 379] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [pid 379] getsockname(-1, NULL, NULL) = -1 EBADF (Bad file descriptor) [pid 379] sendmsg(3, NULL, 0) = -1 EFAULT (Bad address) [ 20.541106][ T377] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 20.549193][ T377] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 379] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 4 [pid 379] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 5 [pid 379] write(5, "70", 2) = 2 [ 20.606884][ T379] FAULT_INJECTION: forcing a failure. [ 20.606884][ T379] name failslab, interval 1, probability 0, space 0, times 0 [ 20.619560][ T379] CPU: 1 PID: 379 Comm: syz-executor503 Not tainted 5.10.161-syzkaller-00019-g416c4356f372 #0 [ 20.630016][ T379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 20.640051][ T379] Call Trace: [ 20.643335][ T379] dump_stack_lvl+0x1e2/0x24b [ 20.647987][ T379] ? panic+0x7d7/0x7d7 [ 20.652066][ T379] ? bfq_pos_tree_add_move+0x43e/0x43e [ 20.657504][ T379] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 20.662579][ T379] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 20.667772][ T379] dump_stack+0x15/0x17 [ 20.671905][ T379] should_fail+0x3c0/0x510 [ 20.676304][ T379] ? kobj_map+0x72/0x6f0 [ 20.680541][ T379] __should_failslab+0x9f/0xe0 [ 20.685284][ T379] should_failslab+0x9/0x20 [ 20.689767][ T379] __kmalloc+0x60/0x360 [ 20.693911][ T379] ? __device_add_disk+0x536/0x11d0 [ 20.699101][ T379] kobj_map+0x72/0x6f0 [ 20.703163][ T379] ? exact_match+0x20/0x20 [ 20.707986][ T379] ? bdev_check_media_change+0x4c0/0x4c0 [ 20.713611][ T379] __device_add_disk+0x663/0x11d0 [ 20.718617][ T379] ? device_add_disk+0x40/0x40 [ 20.723373][ T379] ? loop_add+0x400/0x760 [ 20.727697][ T379] ? vsprintf+0x40/0x40 [ 20.731945][ T379] device_add_disk+0x2a/0x40 [ 20.736556][ T379] loop_add+0x58f/0x760 [ 20.740690][ T379] loop_control_ioctl+0x564/0x740 [ 20.745690][ T379] ? loop_remove+0xb0/0xb0 [ 20.750082][ T379] ? _raw_spin_unlock_irq+0x4e/0x70 [ 20.755340][ T379] ? ptrace_notify+0x248/0x340 [ 20.760097][ T379] ? do_notify_parent+0xa40/0xa40 [ 20.765182][ T379] ? __fpregs_load_activate+0x1e7/0x370 [ 20.770701][ T379] ? security_file_ioctl+0xb1/0xd0 [ 20.775804][ T379] ? loop_remove+0xb0/0xb0 [ 20.780232][ T379] __se_sys_ioctl+0x115/0x190 [ 20.785089][ T379] __x64_sys_ioctl+0x7b/0x90 [ 20.789662][ T379] do_syscall_64+0x34/0x70 [ 20.794052][ T379] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 20.799947][ T379] RIP: 0033:0x7fe4fd8540f9 [ 20.804345][ 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 [ 20.823945][ T379] RSP: 002b:00007ffedd9d6cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.832429][ T379] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe4fd8540f9 [ 20.840383][ T379] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000004 [ 20.848330][ T379] RBP: 00007ffedd9d6cf0 R08: 0000000000000002 R09: 0000000000000001 [pid 379] ioctl(4, LOOP_CTL_ADD, 0) = 0 [ 20.856291][ T379] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 20.864247][ T379] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 379] ioctl(4, LOOP_CTL_REMOVE, 0) = 0 [pid 379] sendmsg(-1, NULL, MSG_PEEK|MSG_FASTOPEN) = -1 EBADF (Bad file descriptor) [pid 379] exit_group(0) = ? [pid 379] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=379, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e175d0) = 380 ./strace-static-x86_64: Process 380 attached [pid 380] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 380] setpgid(0, 0) = 0 [pid 380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 380] write(3, "1000", 4) = 4 [pid 380] close(3) = 0 [pid 380] sendmmsg(-1, NULL, 0, 0) = -1 EBADF (Bad file descriptor) [pid 380] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [pid 380] getsockname(-1, NULL, NULL) = -1 EBADF (Bad file descriptor) [pid 380] sendmsg(3, NULL, 0) = -1 EFAULT (Bad address) [pid 380] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 4 [pid 380] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 5 [pid 380] write(5, "70", 2) = 2 [ 20.952338][ T380] FAULT_INJECTION: forcing a failure. [ 20.952338][ T380] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 20.965661][ T380] CPU: 0 PID: 380 Comm: syz-executor503 Not tainted 5.10.161-syzkaller-00019-g416c4356f372 #0 [ 20.975890][ T380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 20.986172][ T380] Call Trace: [ 20.989482][ T380] dump_stack_lvl+0x1e2/0x24b [ 20.994152][ T380] ? bfq_pos_tree_add_move+0x43e/0x43e [ 20.999603][ T380] ? debug_smp_processor_id+0x17/0x20 [ 21.004957][ T380] dump_stack+0x15/0x17 [ 21.009101][ T380] should_fail+0x3c0/0x510 [ 21.013538][ T380] should_fail_alloc_page+0x50/0x60 [ 21.018740][ T380] __alloc_pages_nodemask+0x1c0/0x890 [ 21.024112][ T380] ? loop_add+0x58f/0x760 [ 21.028427][ T380] ? loop_control_ioctl+0x564/0x740 [ 21.033605][ T380] ? __se_sys_ioctl+0x115/0x190 [ 21.038450][ T380] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 21.043971][ T380] ? __kasan_check_write+0x14/0x20 [ 21.049072][ T380] ? lockref_get+0x1b3/0x2a0 [ 21.053643][ T380] ? __kasan_check_write+0x14/0x20 [ 21.058732][ T380] __get_free_pages+0xe/0x30 [ 21.063295][ T380] selinux_genfs_get_sid+0x56/0x250 [ 21.068464][ T380] inode_doinit_with_dentry+0x858/0x1030 [ 21.074190][ T380] ? sb_finish_set_opts+0x7f0/0x7f0 [ 21.079457][ T380] ? current_time+0x1c4/0x310 [ 21.084105][ T380] selinux_d_instantiate+0x27/0x40 [ 21.089305][ T380] security_d_instantiate+0xa5/0x100 [ 21.094683][ T380] d_instantiate+0x55/0x90 [ 21.099079][ T380] __debugfs_create_file+0x2d7/0x4a0 [ 21.104340][ T380] ? up_write+0x19/0xd0 [ 21.108557][ T380] debugfs_create_file+0x4a/0x60 [ 21.113470][ T380] bdi_register_va+0x2ab/0x600 [ 21.118225][ T380] bdi_register+0xd1/0x120 [ 21.122619][ T380] ? __device_add_disk+0x536/0x11d0 [ 21.127848][ T380] ? bdi_register_va+0x600/0x600 [ 21.132838][ T380] ? vsnprintf+0x1bfd/0x1cd0 [ 21.137407][ T380] ? __kasan_check_read+0x11/0x20 [ 21.142405][ T380] ? blk_alloc_devt+0xd4/0x320 [ 21.147155][ T380] __device_add_disk+0x5cb/0x11d0 [ 21.152251][ T380] ? device_add_disk+0x40/0x40 [ 21.157015][ T380] ? loop_add+0x400/0x760 [ 21.161327][ T380] ? vsprintf+0x40/0x40 [ 21.165546][ T380] device_add_disk+0x2a/0x40 [ 21.170123][ T380] loop_add+0x58f/0x760 [ 21.174265][ T380] loop_control_ioctl+0x564/0x740 [ 21.179272][ T380] ? loop_remove+0xb0/0xb0 [ 21.183675][ T380] ? _raw_spin_unlock_irq+0x4e/0x70 [ 21.188866][ T380] ? ptrace_notify+0x248/0x340 [ 21.193605][ T380] ? do_notify_parent+0xa40/0xa40 [ 21.198604][ T380] ? __fpregs_load_activate+0x1e7/0x370 [ 21.204142][ T380] ? security_file_ioctl+0xb1/0xd0 [ 21.209231][ T380] ? loop_remove+0xb0/0xb0 [ 21.213640][ T380] __se_sys_ioctl+0x115/0x190 [ 21.218295][ T380] __x64_sys_ioctl+0x7b/0x90 [ 21.222954][ T380] do_syscall_64+0x34/0x70 [ 21.227361][ T380] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 21.233239][ T380] RIP: 0033:0x7fe4fd8540f9 [ 21.237676][ T380] 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 [ 21.257484][ T380] RSP: 002b:00007ffedd9d6cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 21.265882][ T380] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe4fd8540f9 [ 21.273850][ T380] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000004 [ 21.281801][ T380] RBP: 00007ffedd9d6cf0 R08: 0000000000000002 R09: 0000000000000001 [ 21.289757][ T380] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [pid 380] ioctl(4, LOOP_CTL_ADD, 0) = 0 [ 21.297704][ T380] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 380] ioctl(4, LOOP_CTL_REMOVE, 0) = 0 [pid 380] sendmsg(-1, NULL, MSG_PEEK|MSG_FASTOPEN) = -1 EBADF (Bad file descriptor) [pid 380] exit_group(0) = ? [pid 380] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=380, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555e175d0) = 381 ./strace-static-x86_64: Process 381 attached [pid 381] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 381] setpgid(0, 0) = 0 [pid 381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 381] write(3, "1000", 4) = 4 [pid 381] close(3) = 0 [pid 381] sendmmsg(-1, NULL, 0, 0) = -1 EBADF (Bad file descriptor) [pid 381] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [pid 381] getsockname(-1, NULL, NULL) = -1 EBADF (Bad file descriptor) [pid 381] sendmsg(3, NULL, 0) = -1 EFAULT (Bad address) [pid 381] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 4 [pid 381] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 5 [pid 381] write(5, "70", 2) = 2 [ 21.352528][ T381] FAULT_INJECTION: forcing a failure. [ 21.352528][ T381] name failslab, interval 1, probability 0, space 0, times 0 [ 21.365198][ T381] CPU: 0 PID: 381 Comm: syz-executor503 Not tainted 5.10.161-syzkaller-00019-g416c4356f372 #0 [ 21.375422][ T381] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 21.385480][ T381] Call Trace: [ 21.388763][ T381] dump_stack_lvl+0x1e2/0x24b [ 21.393517][ T381] ? panic+0x7d7/0x7d7 [ 21.397584][ T381] ? bfq_pos_tree_add_move+0x43e/0x43e [ 21.403028][ T381] ? _raw_spin_lock_bh+0xa3/0x1b0 [ 21.408041][ T381] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 21.413221][ T381] dump_stack+0x15/0x17 [ 21.417351][ T381] should_fail+0x3c0/0x510 [ 21.421839][ T381] ? kobj_map+0x72/0x6f0 [ 21.426074][ T381] __should_failslab+0x9f/0xe0 [ 21.430816][ T381] should_failslab+0x9/0x20 [ 21.435431][ T381] __kmalloc+0x60/0x360 [ 21.439567][ T381] ? __device_add_disk+0x536/0x11d0 [ 21.444739][ T381] kobj_map+0x72/0x6f0 [ 21.448784][ T381] ? exact_match+0x20/0x20 [ 21.453183][ T381] ? bdev_check_media_change+0x4c0/0x4c0 [ 21.458800][ T381] __device_add_disk+0x663/0x11d0 [ 21.463805][ T381] ? device_add_disk+0x40/0x40 [ 21.468559][ T381] ? loop_add+0x400/0x760 [ 21.472870][ T381] ? vsprintf+0x40/0x40 [ 21.476998][ T381] device_add_disk+0x2a/0x40 [ 21.481559][ T381] loop_add+0x58f/0x760 [ 21.485686][ T381] loop_control_ioctl+0x564/0x740 [ 21.490801][ T381] ? loop_remove+0xb0/0xb0 [ 21.495320][ T381] ? _raw_spin_unlock_irq+0x4e/0x70 [ 21.500504][ T381] ? ptrace_notify+0x248/0x340 [ 21.505247][ T381] ? do_notify_parent+0xa40/0xa40 [ 21.510243][ T381] ? __fpregs_load_activate+0x1e7/0x370 [ 21.515768][ T381] ? security_file_ioctl+0xb1/0xd0 [ 21.520870][ T381] ? loop_remove+0xb0/0xb0 [ 21.525289][ T381] __se_sys_ioctl+0x115/0x190 [ 21.529951][ T381] __x64_sys_ioctl+0x7b/0x90 [ 21.534532][ T381] do_syscall_64+0x34/0x70 [ 21.538925][ T381] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 21.544789][ T381] RIP: 0033:0x7fe4fd8540f9 [ 21.549187][ T381] 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 [ 21.568776][ T381] RSP: 002b:00007ffedd9d6cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 21.577180][ T381] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe4fd8540f9 [ 21.585124][ T381] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000004 [ 21.593078][ T381] RBP: 00007ffedd9d6cf0 R08: 0000000000000002 R09: 0000000000000001 [pid 381] ioctl(4, LOOP_CTL_ADD, 0) = 0 [pid 381] ioctl(4, LOOP_CTL_REMOVE, 0) = 0 [pid 381] sendmsg(-1, NULL, MSG_PEEK|MSG_FASTOPEN) = -1 EBADF (Bad file descriptor) [pid 381] exit_group(0) = ? [pid 381] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=381, 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=0x555555e175d0) = 382 ./strace-static-x86_64: Process 382 attached [pid 382] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 382] setpgid(0, 0) = 0 [pid 382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 382] write(3, "1000", 4) = 4 [pid 382] close(3) = 0 [pid 382] sendmmsg(-1, NULL, 0, 0) = -1 EBADF (Bad file descriptor) [pid 382] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [pid 382] getsockname(-1, NULL, NULL) = -1 EBADF (Bad file descriptor) [pid 382] sendmsg(3, NULL, 0) = -1 EFAULT (Bad address) [pid 382] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 4 [pid 382] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 5 [pid 382] write(5, "70", 2) = 2 [ 21.601035][ T381] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 21.608985][ T381] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 21.643447][ T382] FAULT_INJECTION: forcing a failure. [ 21.643447][ T382] name failslab, interval 1, probability 0, space 0, times 0 [ 21.656084][ T382] CPU: 1 PID: 382 Comm: syz-executor503 Not tainted 5.10.161-syzkaller-00019-g416c4356f372 #0 [ 21.666303][ T382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 21.676333][ T382] Call Trace: [ 21.679606][ T382] dump_stack_lvl+0x1e2/0x24b [ 21.684279][ T382] ? panic+0x7d7/0x7d7 [ 21.688323][ T382] ? bfq_pos_tree_add_move+0x43e/0x43e [ 21.693755][ T382] ? __kasan_kmalloc+0x9/0x10 [ 21.698406][ T382] ? kobj_map+0x72/0x6f0 [ 21.702621][ T382] ? __device_add_disk+0x663/0x11d0 [ 21.707789][ T382] ? device_add_disk+0x2a/0x40 [ 21.712530][ T382] ? loop_control_ioctl+0x564/0x740 [ 21.717706][ T382] ? __se_sys_ioctl+0x115/0x190 [ 21.722537][ T382] ? __x64_sys_ioctl+0x7b/0x90 [ 21.727393][ T382] dump_stack+0x15/0x17 [ 21.731527][ T382] should_fail+0x3c0/0x510 [ 21.735929][ T382] ? kvasprintf_const+0x139/0x180 [ 21.740940][ T382] __should_failslab+0x9f/0xe0 [ 21.745697][ T382] should_failslab+0x9/0x20 [ 21.750182][ T382] __kmalloc_track_caller+0x5f/0x350 [ 21.755451][ T382] kstrdup_const+0x55/0x90 [ 21.759856][ T382] kvasprintf_const+0x139/0x180 [ 21.764682][ T382] kobject_set_name_vargs+0x61/0x120 [ 21.769941][ T382] dev_set_name+0xd1/0x120 [ 21.774337][ T382] ? __kmalloc+0x1f7/0x360 [ 21.778725][ T382] ? get_device+0x30/0x30 [ 21.783026][ T382] ? kobj_map+0x6ad/0x6f0 [ 21.787338][ T382] __device_add_disk+0x6e5/0x11d0 [ 21.792343][ T382] ? device_add_disk+0x40/0x40 [ 21.797080][ T382] ? vsprintf+0x40/0x40 [ 21.801208][ T382] device_add_disk+0x2a/0x40 [ 21.805768][ T382] loop_add+0x58f/0x760 [ 21.809899][ T382] loop_control_ioctl+0x564/0x740 [ 21.814892][ T382] ? loop_remove+0xb0/0xb0 [ 21.819278][ T382] ? _raw_spin_unlock_irq+0x4e/0x70 [ 21.824468][ T382] ? ptrace_notify+0x248/0x340 [ 21.829290][ T382] ? do_notify_parent+0xa40/0xa40 [ 21.834288][ T382] ? __fpregs_load_activate+0x1e7/0x370 [ 21.839830][ T382] ? security_file_ioctl+0xb1/0xd0 [ 21.844943][ T382] ? loop_remove+0xb0/0xb0 [ 21.849338][ T382] __se_sys_ioctl+0x115/0x190 [ 21.853994][ T382] __x64_sys_ioctl+0x7b/0x90 [ 21.858674][ T382] do_syscall_64+0x34/0x70 [ 21.863069][ T382] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 21.868949][ T382] RIP: 0033:0x7fe4fd8540f9 [ 21.873357][ T382] 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 [ 21.892955][ T382] RSP: 002b:00007ffedd9d6cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 21.901552][ T382] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe4fd8540f9 [ 21.909502][ T382] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000004 [ 21.917453][ T382] RBP: 00007ffedd9d6cf0 R08: 0000000000000002 R09: 0000000000000001 [ 21.925492][ T382] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 21.933462][ T382] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 21.941662][ T382] kobject_add_internal failed for queue (error: -2 parent: (null)) [ 21.949620][ T382] ------------[ cut here ]------------ [ 21.955079][ T382] WARNING: CPU: 1 PID: 382 at fs/sysfs/file.c:328 sysfs_create_files+0x215/0x4a0 [ 21.964646][ T382] Modules linked in: [ 21.968736][ T382] CPU: 1 PID: 382 Comm: syz-executor503 Not tainted 5.10.161-syzkaller-00019-g416c4356f372 #0 [ 21.978995][ T382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 21.989065][ T382] RIP: 0010:sysfs_create_files+0x215/0x4a0 [ 21.994845][ T382] 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 [ 22.014483][ T382] RSP: 0018:ffffc9000099fae0 EFLAGS: 00010293 [ 22.020578][ T382] RAX: ffffffff81d27fd1 RBX: ffff88810a2f0098 RCX: ffff888103fea780 [ 22.028560][ T382] RDX: 0000000000000000 RSI: ffffffff8653acc0 RDI: ffff88810a2f0068 [ 22.036525][ T382] RBP: ffffc9000099fbb0 R08: ffffffff826c6018 R09: ffffed102151a35a [ 22.044545][ T382] R10: ffffed102151a35a R11: 1ffff1102151a359 R12: 0000000000000000 [ 22.052530][ T382] R13: ffffffff85433120 R14: ffff88810a2f0068 R15: ffffffff8653acc0 [ 22.060533][ T382] FS: 0000555555e17300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 22.069477][ T382] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.076039][ T382] CR2: 00007fe4fd883a30 CR3: 0000000101bbd000 CR4: 00000000003506a0 [ 22.084037][ T382] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.092059][ T382] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.100085][ T382] Call Trace: [ 22.103366][ T382] ? sysfs_create_file_ns+0x2a0/0x2a0 [ 22.108757][ T382] ? __kasan_check_write+0x14/0x20 [ 22.113862][ T382] ? kobject_get+0xd2/0x120 [ 22.118399][ T382] __device_add_disk+0x9cb/0x11d0 [ 22.123431][ T382] ? device_add_disk+0x40/0x40 [ 22.128217][ T382] ? vsprintf+0x40/0x40 [ 22.132364][ T382] device_add_disk+0x2a/0x40 [ 22.136959][ T382] loop_add+0x58f/0x760 [ 22.141104][ T382] loop_control_ioctl+0x564/0x740 [ 22.146101][ T382] ? loop_remove+0xb0/0xb0 [ 22.150523][ T382] ? _raw_spin_unlock_irq+0x4e/0x70 [ 22.155703][ T382] ? ptrace_notify+0x248/0x340 [ 22.160487][ T382] ? do_notify_parent+0xa40/0xa40 [ 22.165506][ T382] ? __fpregs_load_activate+0x1e7/0x370 [ 22.171073][ T382] ? security_file_ioctl+0xb1/0xd0 [ 22.176262][ T382] ? loop_remove+0xb0/0xb0 [ 22.180694][ T382] __se_sys_ioctl+0x115/0x190 [ 22.185352][ T382] __x64_sys_ioctl+0x7b/0x90 [ 22.189950][ T382] do_syscall_64+0x34/0x70 [ 22.194356][ T382] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 22.200248][ T382] RIP: 0033:0x7fe4fd8540f9 [ 22.204644][ T382] 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 [ 22.224342][ T382] RSP: 002b:00007ffedd9d6cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.232770][ T382] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe4fd8540f9 [ 22.240860][ T382] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000004 [ 22.248840][ T382] RBP: 00007ffedd9d6cf0 R08: 0000000000000002 R09: 0000000000000001 [ 22.256856][ T382] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [ 22.264842][ T382] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 22.272822][ T382] ---[ end trace 69d8be53a6c447d9 ]--- [ 22.278278][ T382] ------------[ cut here ]------------ [ 22.283707][ T382] kernfs: can not remove 'events', no directory [ 22.290029][ T382] WARNING: CPU: 1 PID: 382 at fs/kernfs/dir.c:1515 kernfs_remove_by_name_ns+0xc0/0x110 [ 22.299648][ T382] Modules linked in: [ 22.303551][ T382] CPU: 1 PID: 382 Comm: syz-executor503 Tainted: G W 5.10.161-syzkaller-00019-g416c4356f372 #0 [ 22.315211][ T382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 22.325296][ T382] RIP: 0010:kernfs_remove_by_name_ns+0xc0/0x110 [ 22.331556][ T382] 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 40 2f 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 [ 22.351169][ T382] RSP: 0018:ffffc9000099fab8 EFLAGS: 00010246 [ 22.357242][ T382] RAX: feae147f5b891100 RBX: 0000000000000000 RCX: ffff888103fea780 [ 22.365197][ T382] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 22.373193][ T382] RBP: ffffc9000099fad0 R08: ffffffff81540db8 R09: fffff52000133e7d [ 22.381161][ T382] R10: fffff52000133e7d R11: 1ffff92000133e7c R12: ffffffff8653acc0 [ 22.389236][ T382] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff85433100 [ 22.397205][ T382] FS: 0000555555e17300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 22.406133][ T382] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.412722][ T382] CR2: 00007fe4fd883a30 CR3: 0000000101bbd000 CR4: 00000000003506a0 [ 22.420694][ T382] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.428791][ T382] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.436748][ T382] Call Trace: [ 22.440052][ T382] sysfs_create_files+0x40a/0x4a0 [ 22.445074][ T382] ? sysfs_create_file_ns+0x2a0/0x2a0 [ 22.450496][ T382] ? __kasan_check_write+0x14/0x20 [ 22.455614][ T382] ? kobject_get+0xd2/0x120 [ 22.460144][ T382] __device_add_disk+0x9cb/0x11d0 [ 22.465166][ T382] ? device_add_disk+0x40/0x40 [ 22.469959][ T382] ? vsprintf+0x40/0x40 [ 22.474111][ T382] device_add_disk+0x2a/0x40 [ 22.478707][ T382] loop_add+0x58f/0x760 [ 22.482886][ T382] loop_control_ioctl+0x564/0x740 [ 22.488020][ T382] ? loop_remove+0xb0/0xb0 [ 22.492531][ T382] ? _raw_spin_unlock_irq+0x4e/0x70 [ 22.497839][ T382] ? ptrace_notify+0x248/0x340 [ 22.502615][ T382] ? do_notify_parent+0xa40/0xa40 [ 22.507660][ T382] ? __fpregs_load_activate+0x1e7/0x370 [ 22.513206][ T382] ? security_file_ioctl+0xb1/0xd0 [ 22.518347][ T382] ? loop_remove+0xb0/0xb0 [ 22.522766][ T382] __se_sys_ioctl+0x115/0x190 [ 22.527469][ T382] __x64_sys_ioctl+0x7b/0x90 [ 22.532056][ T382] do_syscall_64+0x34/0x70 [ 22.536449][ T382] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 22.542346][ T382] RIP: 0033:0x7fe4fd8540f9 [ 22.546756][ T382] 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 [ 22.566421][ T382] RSP: 002b:00007ffedd9d6cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.574869][ T382] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe4fd8540f9 [ 22.582849][ T382] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000004 [ 22.590817][ T382] RBP: 00007ffedd9d6cf0 R08: 0000000000000002 R09: 0000000000000001 [ 22.598809][ T382] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000005 [pid 382] ioctl(4, LOOP_CTL_ADD, 0) = 0 [ 22.606790][ T382] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 22.614803][ T382] ---[ end trace 69d8be53a6c447da ]--- [ 22.620296][ T382] loop0: failed to create sysfs files for events [ 22.626773][ T382] ------------[ cut here ]------------ [ 22.632356][ T382] kernfs: can not remove 'events', no directory [ 22.639012][ T382] WARNING: CPU: 0 PID: 382 at fs/kernfs/dir.c:1515 kernfs_remove_by_name_ns+0xc0/0x110 [ 22.648769][ T382] Modules linked in: [ 22.652772][ T382] CPU: 0 PID: 382 Comm: syz-executor503 Tainted: G W 5.10.161-syzkaller-00019-g416c4356f372 #0 [ 22.664796][ T382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 22.675148][ T382] RIP: 0010:kernfs_remove_by_name_ns+0xc0/0x110 [ 22.681522][ T382] 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 40 2f 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 [ 22.701296][ T382] RSP: 0018:ffffc9000099fbf8 EFLAGS: 00010246 [ 22.707501][ T382] RAX: feae147f5b891100 RBX: 0000000000000000 RCX: ffff888103fea780 [ 22.715616][ T382] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 22.723795][ T382] RBP: ffffc9000099fc10 R08: ffffffff81540db8 R09: ffffed103ee0a5e8 [ 22.731959][ T382] R10: ffffed103ee0a5e8 R11: 1ffff1103ee0a5e7 R12: 0000000000000000 [ 22.739951][ T382] R13: ffffffff8653acc0 R14: 0000000000000000 R15: ffffffff85433100 [ 22.747923][ T382] FS: 0000555555e17300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 22.756874][ T382] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.763550][ T382] CR2: 00007ffedd9d6cb8 CR3: 0000000101bbd000 CR4: 00000000003506b0 [ 22.771551][ T382] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.779535][ T382] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.787532][ T382] Call Trace: [ 22.790814][ T382] sysfs_remove_files+0xab/0x110 [ 22.795729][ T382] del_gendisk+0x278/0xe20 [ 22.800168][ T382] ? device_add_disk_no_queue_reg+0x30/0x30 [ 22.806053][ T382] ? __radix_tree_delete+0x2ba/0x380 [ 22.811342][ T382] ? radix_tree_delete_item+0x261/0x360 [ 22.816898][ T382] loop_remove+0x46/0xb0 [ 22.821113][ T382] loop_control_ioctl+0x67f/0x740 [ 22.826119][ T382] ? loop_remove+0xb0/0xb0 [ 22.830548][ T382] ? _raw_spin_unlock_irq+0x4e/0x70 [ 22.835750][ T382] ? ptrace_notify+0x248/0x340 [ 22.840517][ T382] ? do_notify_parent+0xa40/0xa40 [ 22.845530][ T382] ? __fpregs_load_activate+0x1e7/0x370 [ 22.851089][ T382] ? security_file_ioctl+0xb1/0xd0 [ 22.856189][ T382] ? loop_remove+0xb0/0xb0 [ 22.860610][ T382] __se_sys_ioctl+0x115/0x190 [ 22.865290][ T382] __x64_sys_ioctl+0x7b/0x90 [ 22.869902][ T382] do_syscall_64+0x34/0x70 [ 22.874336][ T382] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 22.880262][ T382] RIP: 0033:0x7fe4fd8540f9 [ 22.884664][ T382] 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 [ 22.904298][ T382] RSP: 002b:00007ffedd9d6cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.912746][ T382] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe4fd8540f9 [ 22.920835][ T382] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000004 [ 22.928841][ T382] RBP: 00007ffedd9d6cf0 R08: 0000000000000001 R09: 0000000000000001 [ 22.937273][ T382] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000005 [ 22.945369][ T382] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 22.953365][ T382] ---[ end trace 69d8be53a6c447db ]--- [ 22.958823][ T382] ------------[ cut here ]------------ [ 22.964258][ T382] kernfs: can not remove 'events_async', no directory [ 22.971106][ T382] WARNING: CPU: 0 PID: 382 at fs/kernfs/dir.c:1515 kernfs_remove_by_name_ns+0xc0/0x110 [ 22.980745][ T382] Modules linked in: [ 22.984652][ T382] CPU: 0 PID: 382 Comm: syz-executor503 Tainted: G W 5.10.161-syzkaller-00019-g416c4356f372 #0 [ 22.996271][ T382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 23.006452][ T382] RIP: 0010:kernfs_remove_by_name_ns+0xc0/0x110 [ 23.012717][ T382] 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 40 2f 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 [ 23.032439][ T382] RSP: 0018:ffffc9000099fbf8 EFLAGS: 00010246 [ 23.038536][ T382] RAX: feae147f5b891100 RBX: 0000000000000000 RCX: ffff888103fea780 [ 23.046505][ T382] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 23.054662][ T382] RBP: ffffc9000099fc10 R08: ffffffff81540db8 R09: fffff52000133ea5 [ 23.062737][ T382] R10: fffff52000133ea5 R11: 1ffff92000133ea4 R12: 0000000000000000 [ 23.070820][ T382] R13: ffffffff8653acc0 R14: 0000000000000000 R15: ffffffff854331e0 [ 23.078804][ T382] FS: 0000555555e17300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 23.087766][ T382] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.094352][ T382] CR2: 00007ffedd9d6cb8 CR3: 0000000101bbd000 CR4: 00000000003506b0 [ 23.102368][ T382] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.110561][ T382] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.118547][ T382] Call Trace: [ 23.121843][ T382] sysfs_remove_files+0xab/0x110 [ 23.127470][ T382] del_gendisk+0x278/0xe20 [ 23.132058][ T382] ? device_add_disk_no_queue_reg+0x30/0x30 [ 23.137972][ T382] ? __radix_tree_delete+0x2ba/0x380 [ 23.143267][ T382] ? radix_tree_delete_item+0x261/0x360 [ 23.148821][ T382] loop_remove+0x46/0xb0 [ 23.153058][ T382] loop_control_ioctl+0x67f/0x740 [ 23.158095][ T382] ? loop_remove+0xb0/0xb0 [ 23.162505][ T382] ? _raw_spin_unlock_irq+0x4e/0x70 [ 23.167891][ T382] ? ptrace_notify+0x248/0x340 [ 23.172645][ T382] ? do_notify_parent+0xa40/0xa40 [ 23.177711][ T382] ? __fpregs_load_activate+0x1e7/0x370 [ 23.183260][ T382] ? security_file_ioctl+0xb1/0xd0 [ 23.188381][ T382] ? loop_remove+0xb0/0xb0 [ 23.192785][ T382] __se_sys_ioctl+0x115/0x190 [ 23.197465][ T382] __x64_sys_ioctl+0x7b/0x90 [ 23.202046][ T382] do_syscall_64+0x34/0x70 [ 23.206440][ T382] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 23.212332][ T382] RIP: 0033:0x7fe4fd8540f9 [ 23.216770][ T382] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 23.236396][ T382] RSP: 002b:00007ffedd9d6cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 23.244851][ T382] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe4fd8540f9 [ 23.252855][ T382] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000004 [ 23.260841][ T382] RBP: 00007ffedd9d6cf0 R08: 0000000000000001 R09: 0000000000000001 [ 23.269125][ T382] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000005 [ 23.277099][ T382] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 23.285057][ T382] ---[ end trace 69d8be53a6c447dc ]--- [ 23.290528][ T382] ------------[ cut here ]------------ [ 23.295979][ T382] kernfs: can not remove 'events_poll_msecs', no directory [ 23.303241][ T382] WARNING: CPU: 0 PID: 382 at fs/kernfs/dir.c:1515 kernfs_remove_by_name_ns+0xc0/0x110 [ 23.312892][ T382] Modules linked in: [ 23.316919][ T382] CPU: 0 PID: 382 Comm: syz-executor503 Tainted: G W 5.10.161-syzkaller-00019-g416c4356f372 #0 [ 23.328551][ T382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 23.339388][ T382] RIP: 0010:kernfs_remove_by_name_ns+0xc0/0x110 [ 23.345801][ T382] 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 40 2f 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 [ 23.366379][ T382] RSP: 0018:ffffc9000099fbf8 EFLAGS: 00010246 [ 23.372688][ T382] RAX: feae147f5b891100 RBX: 0000000000000000 RCX: ffff888103fea780 [ 23.380675][ T382] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 23.388657][ T382] RBP: ffffc9000099fc10 R08: ffffffff81540db8 R09: fffff52000133ea5 [ 23.396825][ T382] R10: fffff52000133ea5 R11: 1ffff92000133ea4 R12: 0000000000000000 [ 23.404865][ T382] R13: ffffffff8653acc0 R14: 0000000000000000 R15: ffffffff85433240 [ 23.412894][ T382] FS: 0000555555e17300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 23.421852][ T382] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.428458][ T382] CR2: 00007ffedd9d6cb8 CR3: 0000000101bbd000 CR4: 00000000003506b0 [ 23.436427][ T382] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.444413][ T382] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.452497][ T382] Call Trace: [ 23.455966][ T382] sysfs_remove_files+0xab/0x110 [ 23.460929][ T382] del_gendisk+0x278/0xe20 [ 23.465358][ T382] ? device_add_disk_no_queue_reg+0x30/0x30 [ 23.471264][ T382] ? __radix_tree_delete+0x2ba/0x380 [ 23.476547][ T382] ? radix_tree_delete_item+0x261/0x360 [ 23.482261][ T382] loop_remove+0x46/0xb0 [ 23.486642][ T382] loop_control_ioctl+0x67f/0x740 [ 23.491691][ T382] ? loop_remove+0xb0/0xb0 [ 23.496117][ T382] ? _raw_spin_unlock_irq+0x4e/0x70 [ 23.501349][ T382] ? ptrace_notify+0x248/0x340 [ 23.506109][ T382] ? do_notify_parent+0xa40/0xa40 [ 23.511263][ T382] ? __fpregs_load_activate+0x1e7/0x370 [ 23.516849][ T382] ? security_file_ioctl+0xb1/0xd0 [ 23.521953][ T382] ? loop_remove+0xb0/0xb0 [ 23.526369][ T382] __se_sys_ioctl+0x115/0x190 [ 23.531459][ T382] __x64_sys_ioctl+0x7b/0x90 [ 23.536075][ T382] do_syscall_64+0x34/0x70 [ 23.540656][ T382] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 23.546631][ T382] RIP: 0033:0x7fe4fd8540f9 [ 23.551203][ T382] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 23.571125][ T382] RSP: 002b:00007ffedd9d6cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 23.580053][ T382] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe4fd8540f9 [ 23.588398][ T382] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000004 [ 23.596485][ T382] RBP: 00007ffedd9d6cf0 R08: 0000000000000001 R09: 0000000000000001 [ 23.604631][ T382] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000005 [ 23.612617][ T382] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 23.620657][ T382] ---[ end trace 69d8be53a6c447dd ]--- [ 23.626145][ T382] ------------[ cut here ]------------ [ 23.631645][ T382] kernfs: can not remove 'bdi', no directory [ 23.638072][ T382] WARNING: CPU: 0 PID: 382 at fs/kernfs/dir.c:1515 kernfs_remove_by_name_ns+0xc0/0x110 [ 23.647833][ T382] Modules linked in: [ 23.651951][ T382] CPU: 0 PID: 382 Comm: syz-executor503 Tainted: G W 5.10.161-syzkaller-00019-g416c4356f372 #0 [ 23.663711][ T382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 23.673799][ T382] RIP: 0010:kernfs_remove_by_name_ns+0xc0/0x110 [ 23.680238][ T382] 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 40 2f 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 [ 23.699882][ T382] RSP: 0018:ffffc9000099fc18 EFLAGS: 00010246 [ 23.705932][ T382] RAX: feae147f5b891100 RBX: 0000000000000000 RCX: ffff888103fea780 [ 23.713923][ T382] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 23.721915][ T382] RBP: ffffc9000099fc30 R08: ffffffff81540db8 R09: ffffed103ee0a5e8 [ 23.730038][ T382] R10: ffffed103ee0a5e8 R11: 1ffff1103ee0a5e7 R12: 0000000000000240 [ 23.738228][ T382] R13: ffff88810a2f0030 R14: 0000000000000000 R15: ffffffff85432ae0 [ 23.746552][ T382] FS: 0000555555e17300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 23.755507][ T382] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.762116][ T382] CR2: 00007ffedd9d6cb8 CR3: 0000000101bbd000 CR4: 00000000003506b0 [ 23.770133][ T382] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.778136][ T382] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.786087][ T382] Call Trace: [ 23.789414][ T382] sysfs_remove_link+0x50/0x60 [ 23.794168][ T382] del_gendisk+0x7cd/0xe20 [ 23.798587][ T382] ? device_add_disk_no_queue_reg+0x30/0x30 [ 23.804472][ T382] ? __radix_tree_delete+0x2ba/0x380 [ 23.809854][ T382] ? radix_tree_delete_item+0x261/0x360 [ 23.815406][ T382] loop_remove+0x46/0xb0 [ 23.819826][ T382] loop_control_ioctl+0x67f/0x740 [ 23.824841][ T382] ? loop_remove+0xb0/0xb0 [ 23.829288][ T382] ? _raw_spin_unlock_irq+0x4e/0x70 [ 23.834491][ T382] ? ptrace_notify+0x248/0x340 [ 23.839272][ T382] ? do_notify_parent+0xa40/0xa40 [ 23.844320][ T382] ? __fpregs_load_activate+0x1e7/0x370 [ 23.850098][ T382] ? security_file_ioctl+0xb1/0xd0 [ 23.855237][ T382] ? loop_remove+0xb0/0xb0 [ 23.859677][ T382] __se_sys_ioctl+0x115/0x190 [ 23.864349][ T382] __x64_sys_ioctl+0x7b/0x90 [ 23.868950][ T382] do_syscall_64+0x34/0x70 [ 23.873475][ T382] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 23.879498][ T382] RIP: 0033:0x7fe4fd8540f9 [ 23.883909][ T382] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 23.903897][ T382] RSP: 002b:00007ffedd9d6cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 23.912349][ T382] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe4fd8540f9 [ 23.920343][ T382] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000004 [ 23.928455][ T382] RBP: 00007ffedd9d6cf0 R08: 0000000000000001 R09: 0000000000000001 [ 23.936421][ T382] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000005 [ 23.944410][ T382] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 23.952395][ T382] ---[ end trace 69d8be53a6c447de ]--- [ 23.958259][ T382] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 23.970003][ T382] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 23.978401][ T382] CPU: 0 PID: 382 Comm: syz-executor503 Tainted: G W 5.10.161-syzkaller-00019-g416c4356f372 #0 [ 23.990130][ T382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 24.000210][ T382] RIP: 0010:strlen+0x3a/0x80 [ 24.004796][ T382] 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 [ 24.024492][ T382] RSP: 0018:ffffc9000099fb68 EFLAGS: 00010246 [ 24.030625][ T382] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888103fea780 [ 24.038575][ T382] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 24.046532][ T382] RBP: ffffc9000099fb88 R08: ffffffff81d1f63c R09: fffff52000133f75 [ 24.054485][ T382] R10: fffff52000133f75 R11: 1ffff92000133f74 R12: ffffffffffffffff [ 24.062434][ T382] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 24.070399][ T382] FS: 0000555555e17300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 24.079376][ T382] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.085935][ T382] CR2: 00007ffedd9d6cb8 CR3: 0000000101bbd000 CR4: 00000000003506b0 [ 24.093904][ T382] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.101857][ T382] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.109802][ T382] Call Trace: [ 24.113083][ T382] kernfs_name_hash+0x21/0x240 [ 24.117825][ T382] kernfs_find_ns+0x72/0x280 [ 24.122387][ T382] kernfs_remove_by_name_ns+0x3a/0x110 [ 24.127818][ T382] sysfs_remove_link+0x50/0x60 [ 24.132564][ T382] del_gendisk+0xbe0/0xe20 [ 24.136971][ T382] ? device_add_disk_no_queue_reg+0x30/0x30 [ 24.142844][ T382] ? __radix_tree_delete+0x2ba/0x380 [ 24.148113][ T382] ? radix_tree_delete_item+0x261/0x360 [ 24.153633][ T382] loop_remove+0x46/0xb0 [ 24.157863][ T382] loop_control_ioctl+0x67f/0x740 [ 24.162866][ T382] ? loop_remove+0xb0/0xb0 [ 24.167267][ T382] ? _raw_spin_unlock_irq+0x4e/0x70 [ 24.172443][ T382] ? ptrace_notify+0x248/0x340 [ 24.177179][ T382] ? do_notify_parent+0xa40/0xa40 [ 24.182175][ T382] ? __fpregs_load_activate+0x1e7/0x370 [ 24.187696][ T382] ? security_file_ioctl+0xb1/0xd0 [ 24.192787][ T382] ? loop_remove+0xb0/0xb0 [ 24.197173][ T382] __se_sys_ioctl+0x115/0x190 [ 24.201849][ T382] __x64_sys_ioctl+0x7b/0x90 [ 24.206413][ T382] do_syscall_64+0x34/0x70 [ 24.210804][ T382] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 24.216670][ T382] RIP: 0033:0x7fe4fd8540f9 [ 24.221058][ T382] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 24.240753][ T382] RSP: 002b:00007ffedd9d6cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 24.249146][ T382] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe4fd8540f9 [ 24.257091][ T382] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000004 [ 24.265039][ T382] RBP: 00007ffedd9d6cf0 R08: 0000000000000001 R09: 0000000000000001 [ 24.272990][ T382] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000005 [ 24.280936][ T382] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 24.288897][ T382] Modules linked in: [ 24.292874][ T382] ---[ end trace 69d8be53a6c447df ]--- [ 24.298363][ T382] RIP: 0010:strlen+0x3a/0x80 [ 24.302933][ T382] 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 [ 24.322556][ T382] RSP: 0018:ffffc9000099fb68 EFLAGS: 00010246 [ 24.328658][ T382] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888103fea780 [ 24.336611][ T382] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 24.344613][ T382] RBP: ffffc9000099fb88 R08: ffffffff81d1f63c R09: fffff52000133f75 [ 24.352605][ T382] R10: fffff52000133f75 R11: 1ffff92000133f74 R12: ffffffffffffffff [ 24.360589][ T382] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 24.368661][ T382] FS: 0000555555e17300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 24.377602][ T382] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.384190][ T382] CR2: 00007ffedd9d6cb8 CR3: 0000000101bbd000 CR4: 00000000003506b0 [ 24.392172][ T382] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.400153][ T382] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.408243][ T382] Kernel panic - not syncing: Fatal exception [ 24.414647][ T382] Kernel Offset: disabled [ 24.418959][ T382] Rebooting in 86400 seconds..