./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1493971003 <...> [ 2.984501][ T24] audit: type=1400 audit(1696048567.389:9): avc: denied { append open } for pid=75 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 2.987767][ T24] audit: type=1400 audit(1696048567.389:10): avc: denied { getattr } for pid=75 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 3.278013][ T92] udevd[92]: starting version 3.2.11 [ 3.316790][ T93] udevd[93]: starting eudev-3.2.11 [ 13.735368][ T24] kauditd_printk_skb: 50 callbacks suppressed [ 13.735374][ T24] audit: type=1400 audit(1696048578.149:61): avc: denied { transition } for pid=220 comm="sshd" path="/bin/sh" dev="sda1" ino=89 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 13.739351][ T24] audit: type=1400 audit(1696048578.159:62): avc: denied { noatsecure } for pid=220 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 13.741844][ T24] audit: type=1400 audit(1696048578.159:63): avc: denied { write } for pid=220 comm="sh" path="pipe:[13642]" dev="pipefs" ino=13642 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 13.744817][ T24] audit: type=1400 audit(1696048578.159:64): avc: denied { rlimitinh } for pid=220 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 13.747724][ T24] audit: type=1400 audit(1696048578.159:65): avc: denied { siginh } for pid=220 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.0.173' (ED25519) to the list of known hosts. execve("./syz-executor1493971003", ["./syz-executor1493971003"], 0x7fff872b2bd0 /* 10 vars */) = 0 brk(NULL) = 0x555555f19000 brk(0x555555f19d00) = 0x555555f19d00 arch_prctl(ARCH_SET_FS, 0x555555f19380) = 0 set_tid_address(0x555555f19650) = 288 set_robust_list(0x555555f19660, 24) = 0 rseq(0x555555f19ca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1493971003", 4096) = 28 getrandom("\x87\x01\x95\x7a\x5c\x6c\x37\x3c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555f19d00 brk(0x555555f3ad00) = 0x555555f3ad00 brk(0x555555f3b000) = 0x555555f3b000 mprotect(0x7f964d175000, 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=0x555555f19650) = 289 ./strace-static-x86_64: Process 289 attached [pid 289] set_robust_list(0x555555f19660, 24) = 0 [pid 289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 289] setpgid(0, 0) = 0 [pid 289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 289] write(3, "1000", 4) = 4 [pid 289] close(3) = 0 [pid 289] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [ 21.883521][ T24] audit: type=1400 audit(1696048586.299:66): avc: denied { execmem } for pid=288 comm="syz-executor149" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 21.902943][ T24] audit: type=1400 audit(1696048586.299:67): avc: denied { read } for pid=289 comm="syz-executor149" name="loop-control" dev="devtmpfs" ino=110 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [pid 289] ioctl(3, LOOP_CTL_REMOVE, 0) = 0 [pid 289] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 289] write(4, "78", 2) = 2 [ 21.927286][ T24] audit: type=1400 audit(1696048586.299:68): avc: denied { open } for pid=289 comm="syz-executor149" path="/dev/loop-control" dev="devtmpfs" ino=110 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [ 21.952091][ T24] audit: type=1400 audit(1696048586.299:69): avc: denied { ioctl } for pid=289 comm="syz-executor149" path="/dev/loop-control" dev="devtmpfs" ino=110 ioctlcmd=0x4c81 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [ 21.959795][ T289] FAULT_INJECTION: forcing a failure. [ 21.959795][ T289] name failslab, interval 1, probability 0, space 0, times 1 [ 21.990896][ T289] CPU: 1 PID: 289 Comm: syz-executor149 Not tainted 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 22.000915][ T289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 22.010926][ T289] Call Trace: [ 22.014078][ T289] dump_stack_lvl+0x1e2/0x24b [ 22.018565][ T289] ? panic+0x80b/0x80b [ 22.022469][ T289] ? bfq_pos_tree_add_move+0x43b/0x43b [ 22.027765][ T289] ? __lookup_slow+0x2fe/0x400 [ 22.032362][ T289] dump_stack+0x15/0x17 [ 22.036368][ T289] should_fail+0x3c6/0x510 [ 22.040609][ T289] ? new_inode_pseudo+0x7c/0x220 [ 22.045378][ T289] __should_failslab+0xa4/0xe0 [ 22.049984][ T289] should_failslab+0x9/0x20 [ 22.054319][ T289] kmem_cache_alloc+0x3d/0x2e0 [ 22.058920][ T289] new_inode_pseudo+0x7c/0x220 [ 22.063521][ T289] new_inode+0x28/0x1c0 [ 22.067512][ T289] ? start_creating+0x1d4/0x2f0 [ 22.072199][ T289] __debugfs_create_file+0x14d/0x4c0 [ 22.077321][ T289] ? up_write+0x59/0x120 [ 22.081400][ T289] debugfs_create_file+0x4a/0x60 [ 22.086178][ T289] bdi_register_va+0x2a6/0x610 [ 22.090773][ T289] bdi_register+0xd1/0x120 [ 22.095024][ T289] ? vsnprintf+0x1e1/0x1c70 [ 22.099367][ T289] ? __device_add_disk+0x552/0x11a0 [ 22.104399][ T289] ? bdi_register_va+0x610/0x610 [ 22.109177][ T289] ? __kasan_check_read+0x11/0x20 [ 22.114044][ T289] ? blk_alloc_devt+0xd7/0x330 [ 22.118643][ T289] __device_add_disk+0x5de/0x11a0 [ 22.123493][ T289] ? device_add_disk+0x40/0x40 [ 22.128094][ T289] ? vsprintf+0x40/0x40 [ 22.132088][ T289] ? device_initialize+0x1e1/0x420 [ 22.137040][ T289] device_add_disk+0x2a/0x40 [ 22.141459][ T289] loop_add+0x580/0x750 [ 22.145453][ T289] loop_control_ioctl+0x448/0x620 [ 22.150311][ T289] ? loop_remove+0xb0/0xb0 [ 22.154565][ T289] ? _raw_spin_unlock_irq+0x4e/0x70 [ 22.159602][ T289] ? ptrace_notify+0x24c/0x350 [ 22.164199][ T289] ? do_notify_parent+0xa10/0xa10 [ 22.169064][ T289] ? security_file_ioctl+0x84/0xb0 [ 22.174011][ T289] ? loop_remove+0xb0/0xb0 [ 22.178260][ T289] __se_sys_ioctl+0x114/0x190 [ 22.182772][ T289] __x64_sys_ioctl+0x7b/0x90 [ 22.187201][ T289] do_syscall_64+0x34/0x70 [ 22.191452][ T289] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 22.197185][ T289] RIP: 0033:0x7f964d101d39 [ 22.201434][ T289] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 22.220874][ T289] RSP: 002b:00007fffb9387978 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [pid 289] ioctl(3, LOOP_CTL_ADD, 0) = 0 [pid 289] exit_group(0) = ? [pid 289] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=289, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555f19650) = 291 ./strace-static-x86_64: Process 291 attached [pid 291] set_robust_list(0x555555f19660, 24) = 0 [pid 291] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 291] setpgid(0, 0) = 0 [pid 291] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 291] write(3, "1000", 4) = 4 [pid 291] close(3) = 0 [pid 291] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [ 22.229120][ T289] RAX: ffffffffffffffda RBX: 00007fffb9387990 RCX: 00007f964d101d39 [ 22.236930][ T289] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 22.244741][ T289] RBP: 0000000000000002 R08: 00007fffb9387716 R09: 00000000000000a0 [ 22.252558][ T289] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000001 [ 22.260364][ T289] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 22.268343][ T289] debugfs: out of free dentries, can not create file 'stats' [pid 291] ioctl(3, LOOP_CTL_REMOVE, 0) = 0 [pid 291] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 291] write(4, "78", 2) = 2 [ 22.358674][ T291] FAULT_INJECTION: forcing a failure. [ 22.358674][ T291] name failslab, interval 1, probability 0, space 0, times 0 [ 22.371092][ T291] CPU: 0 PID: 291 Comm: syz-executor149 Not tainted 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 22.381129][ T291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 22.391024][ T291] Call Trace: [ 22.394154][ T291] dump_stack_lvl+0x1e2/0x24b [ 22.398672][ T291] ? panic+0x80b/0x80b [ 22.402567][ T291] ? kernfs_add_one+0x4b5/0x5d0 [ 22.407256][ T291] ? bfq_pos_tree_add_move+0x43b/0x43b [ 22.412565][ T291] dump_stack+0x15/0x17 [ 22.416540][ T291] should_fail+0x3c6/0x510 [ 22.420795][ T291] ? kobject_uevent_env+0x269/0x700 [ 22.425827][ T291] __should_failslab+0xa4/0xe0 [ 22.430428][ T291] should_failslab+0x9/0x20 [ 22.434766][ T291] kmem_cache_alloc_trace+0x3a/0x2e0 [ 22.439888][ T291] ? __kasan_check_write+0x14/0x20 [ 22.444842][ T291] ? dev_uevent_filter+0xb0/0xb0 [ 22.449611][ T291] kobject_uevent_env+0x269/0x700 [ 22.454471][ T291] ? __kasan_check_write+0x14/0x20 [ 22.459417][ T291] kobject_uevent+0x1f/0x30 [ 22.463755][ T291] device_add+0x791/0xbc0 [ 22.467941][ T291] device_create+0x259/0x2e0 [ 22.472436][ T291] ? root_device_unregister+0x80/0x80 [ 22.477649][ T291] ? memset+0x35/0x40 [ 22.481462][ T291] ? number+0xb5a/0xf80 [ 22.485454][ T291] bdi_register_va+0x93/0x610 [ 22.489977][ T291] bdi_register+0xd1/0x120 [ 22.494221][ T291] ? vsnprintf+0x1e1/0x1c70 [ 22.498559][ T291] ? __device_add_disk+0x552/0x11a0 [ 22.503594][ T291] ? bdi_register_va+0x610/0x610 [ 22.508375][ T291] ? __kasan_check_read+0x11/0x20 [ 22.513227][ T291] ? blk_alloc_devt+0xd7/0x330 [ 22.517829][ T291] __device_add_disk+0x5de/0x11a0 [ 22.522690][ T291] ? device_add_disk+0x40/0x40 [ 22.527291][ T291] ? vsprintf+0x40/0x40 [ 22.531284][ T291] ? device_initialize+0x1e1/0x420 [ 22.536231][ T291] device_add_disk+0x2a/0x40 [ 22.540657][ T291] loop_add+0x580/0x750 [ 22.544648][ T291] loop_control_ioctl+0x448/0x620 [ 22.549507][ T291] ? loop_remove+0xb0/0xb0 [ 22.553760][ T291] ? _raw_spin_unlock_irq+0x4e/0x70 [ 22.558795][ T291] ? ptrace_notify+0x24c/0x350 [ 22.563398][ T291] ? do_notify_parent+0xa10/0xa10 [ 22.568259][ T291] ? security_file_ioctl+0x84/0xb0 [ 22.573206][ T291] ? loop_remove+0xb0/0xb0 [ 22.577456][ T291] __se_sys_ioctl+0x114/0x190 [ 22.581977][ T291] __x64_sys_ioctl+0x7b/0x90 [ 22.586398][ T291] do_syscall_64+0x34/0x70 [ 22.590650][ T291] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 22.596374][ T291] RIP: 0033:0x7f964d101d39 [ 22.600628][ T291] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 22.620072][ T291] RSP: 002b:00007fffb9387978 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.628315][ T291] RAX: ffffffffffffffda RBX: 00007fffb9387990 RCX: 00007f964d101d39 [ 22.636126][ T291] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 22.643938][ T291] RBP: 0000000000000002 R08: 00007fffb9387716 R09: 00000000000000a0 [ 22.651752][ T291] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fffb938798c [pid 291] ioctl(3, LOOP_CTL_ADD, 0) = 0 [pid 291] exit_group(0) = ? [pid 291] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=291, 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=0x555555f19650) = 294 ./strace-static-x86_64: Process 294 attached [pid 294] set_robust_list(0x555555f19660, 24) = 0 [pid 294] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 294] setpgid(0, 0) = 0 [pid 294] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 294] write(3, "1000", 4) = 4 [pid 294] close(3) = 0 [pid 294] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 294] ioctl(3, LOOP_CTL_REMOVE, 0) = 0 [pid 294] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 294] write(4, "78", 2) = 2 [ 22.659558][ T291] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 22.708308][ T294] FAULT_INJECTION: forcing a failure. [ 22.708308][ T294] name failslab, interval 1, probability 0, space 0, times 0 [ 22.720793][ T294] CPU: 0 PID: 294 Comm: syz-executor149 Not tainted 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 22.730762][ T294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 22.740657][ T294] Call Trace: [ 22.743790][ T294] dump_stack_lvl+0x1e2/0x24b [ 22.748298][ T294] ? bfq_pos_tree_add_move+0x43b/0x43b [ 22.753601][ T294] ? ____kasan_kmalloc+0xed/0x110 [ 22.758452][ T294] ? kobj_map+0x64/0x670 [ 22.762530][ T294] ? device_add_disk+0x2a/0x40 [ 22.767132][ T294] ? loop_add+0x580/0x750 [ 22.771295][ T294] ? loop_control_ioctl+0x448/0x620 [ 22.776329][ T294] ? __x64_sys_ioctl+0x7b/0x90 [ 22.780935][ T294] dump_stack+0x15/0x17 [ 22.784926][ T294] should_fail+0x3c6/0x510 [ 22.789176][ T294] ? kvasprintf_const+0x13b/0x190 [ 22.794125][ T294] __should_failslab+0xa4/0xe0 [ 22.798728][ T294] should_failslab+0x9/0x20 [ 22.803067][ T294] __kmalloc_track_caller+0x5f/0x320 [ 22.808188][ T294] kstrdup_const+0x55/0x90 [ 22.812438][ T294] kvasprintf_const+0x13b/0x190 [ 22.817136][ T294] kobject_set_name_vargs+0x61/0x120 [ 22.822255][ T294] dev_set_name+0xd1/0x120 [ 22.826501][ T294] ? __kasan_kmalloc+0x9/0x10 [ 22.831013][ T294] ? get_device+0x30/0x30 [ 22.835178][ T294] ? mutex_unlock+0x1c/0x40 [ 22.839528][ T294] ? kobj_map+0x62f/0x670 [ 22.843701][ T294] __device_add_disk+0x703/0x11a0 [ 22.848558][ T294] ? device_add_disk+0x40/0x40 [ 22.853147][ T294] ? vsprintf+0x40/0x40 [ 22.857142][ T294] ? device_initialize+0x1e1/0x420 [ 22.862084][ T294] device_add_disk+0x2a/0x40 [ 22.866522][ T294] loop_add+0x580/0x750 [ 22.870510][ T294] loop_control_ioctl+0x448/0x620 [ 22.875364][ T294] ? loop_remove+0xb0/0xb0 [ 22.879706][ T294] ? _raw_spin_unlock_irq+0x4e/0x70 [ 22.884740][ T294] ? ptrace_notify+0x24c/0x350 [ 22.889341][ T294] ? do_notify_parent+0xa10/0xa10 [ 22.894206][ T294] ? security_file_ioctl+0x84/0xb0 [ 22.899144][ T294] ? loop_remove+0xb0/0xb0 [ 22.903400][ T294] __se_sys_ioctl+0x114/0x190 [ 22.907914][ T294] __x64_sys_ioctl+0x7b/0x90 [ 22.912339][ T294] do_syscall_64+0x34/0x70 [ 22.916593][ T294] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 22.922320][ T294] RIP: 0033:0x7f964d101d39 [ 22.926578][ T294] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 22.946024][ T294] RSP: 002b:00007fffb9387978 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.954356][ T294] RAX: ffffffffffffffda RBX: 00007fffb9387990 RCX: 00007f964d101d39 [ 22.962160][ T294] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 22.969972][ T294] RBP: 0000000000000002 R08: 00007fffb9387716 R09: 00000000000000a0 [ 22.977784][ T294] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fffb938798c [ 22.985595][ T294] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 22.993620][ T294] kobject_add_internal failed for queue (error: -2 parent: (null)) [ 23.001646][ T294] ------------[ cut here ]------------ [ 23.007081][ T294] WARNING: CPU: 1 PID: 294 at fs/sysfs/file.c:328 sysfs_create_files+0x325/0x470 [ 23.016050][ T294] Modules linked in: [ 23.019846][ T294] CPU: 1 PID: 294 Comm: syz-executor149 Not tainted 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 23.029895][ T294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 23.039859][ T294] RIP: 0010:sysfs_create_files+0x325/0x470 [ 23.045461][ T294] Code: c1 03 38 c1 0f 8c b7 fe ff ff 48 8d 7c 24 70 e8 71 b3 d4 ff e9 a8 fe ff ff e8 07 5f 97 ff 31 db e9 ef 00 00 00 e8 fb 5e 97 ff <0f> 0b bb ea ff ff ff 4c 8b 74 24 08 eb 17 85 db 0f 84 cf 00 00 00 [ 23.065114][ T294] RSP: 0018:ffffc90000b97b00 EFLAGS: 00010293 [ 23.071119][ T294] RAX: ffffffff81d34268 RBX: ffff88811eb5d098 RCX: ffff88811ec462c0 [ 23.078927][ T294] RDX: 0000000000000000 RSI: ffffffff86950cc0 RDI: ffff88811eb5d068 [ 23.086742][ T294] RBP: ffffc90000b97bd0 R08: ffffffff826f7757 R09: ffffed1021598d20 [ 23.094510][ T294] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 23.102479][ T294] R13: ffffffff855f5a60 R14: dffffc0000000000 R15: ffff88811eb5d068 [ 23.110358][ T294] FS: 0000555555f19380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 23.119112][ T294] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.125431][ T294] CR2: 0000561ce4fb3448 CR3: 000000011eae8000 CR4: 00000000003506b0 [ 23.133386][ T294] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.141154][ T294] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.148968][ T294] Call Trace: [ 23.151997][ T294] ? show_regs+0x58/0x60 [ 23.156070][ T294] ? __warn+0x160/0x2f0 [ 23.160211][ T294] ? sysfs_create_files+0x325/0x470 [ 23.165198][ T294] ? report_bug+0x3d9/0x5b0 [ 23.169667][ T294] ? sysfs_create_files+0x325/0x470 [ 23.174574][ T294] ? handle_bug+0x41/0x70 [ 23.178863][ T294] ? exc_invalid_op+0x1b/0x50 [ 23.183252][ T294] ? asm_exc_invalid_op+0x12/0x20 [ 23.188239][ T294] ? kobject_get+0xc7/0x120 [ 23.192450][ T294] ? sysfs_create_files+0x458/0x470 [ 23.197618][ T294] ? sysfs_create_files+0x325/0x470 [ 23.202526][ T294] ? sysfs_create_file_ns+0x2a0/0x2a0 [ 23.207849][ T294] ? __kasan_check_write+0x14/0x20 [ 23.212675][ T294] ? kobject_get+0xd1/0x120 [ 23.217129][ T294] __device_add_disk+0x9a7/0x11a0 [ 23.221876][ T294] ? device_add_disk+0x40/0x40 [ 23.226604][ T294] ? vsprintf+0x40/0x40 [ 23.230474][ T294] ? device_initialize+0x1e1/0x420 [ 23.235420][ T294] device_add_disk+0x2a/0x40 [ 23.239950][ T294] loop_add+0x580/0x750 [ 23.243832][ T294] loop_control_ioctl+0x448/0x620 [ 23.248788][ T294] ? loop_remove+0xb0/0xb0 [ 23.252947][ T294] ? _raw_spin_unlock_irq+0x4e/0x70 [ 23.258083][ T294] ? ptrace_notify+0x24c/0x350 [ 23.262583][ T294] ? do_notify_parent+0xa10/0xa10 [ 23.267528][ T294] ? security_file_ioctl+0x84/0xb0 [ 23.272388][ T294] ? loop_remove+0xb0/0xb0 [ 23.276734][ T294] __se_sys_ioctl+0x114/0x190 [ 23.281156][ T294] __x64_sys_ioctl+0x7b/0x90 [ 23.285582][ T294] do_syscall_64+0x34/0x70 [ 23.289975][ T294] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 23.295669][ T294] RIP: 0033:0x7f964d101d39 [ 23.300012][ T294] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 23.319442][ T294] RSP: 002b:00007fffb9387978 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 23.327672][ T294] RAX: ffffffffffffffda RBX: 00007fffb9387990 RCX: 00007f964d101d39 [ 23.335414][ T294] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 23.343314][ T294] RBP: 0000000000000002 R08: 00007fffb9387716 R09: 00000000000000a0 [ 23.351105][ T294] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fffb938798c [ 23.358916][ T294] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 23.366727][ T294] ---[ end trace f1e413fbe8766ad6 ]--- [ 23.371951][ T294] ------------[ cut here ]------------ [ 23.377324][ T294] kernfs: can not remove 'events', no directory [ 23.383366][ T294] WARNING: CPU: 0 PID: 294 at fs/kernfs/dir.c:1517 kernfs_remove_by_name_ns+0xbf/0x110 [ 23.392907][ T294] Modules linked in: [ 23.396614][ T294] CPU: 0 PID: 294 Comm: syz-executor149 Tainted: G W 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 23.408055][ T294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 23.417955][ T294] RIP: 0010:kernfs_remove_by_name_ns+0xbf/0x110 [ 23.423945][ T294] Code: ff 03 48 89 df e8 d1 ef ff ff 48 89 df e8 a9 b3 ff ff 31 db eb 27 e8 d0 bd 97 ff 48 c7 c7 40 b7 4a 85 4c 89 fe e8 21 54 6b ff <0f> 0b bb fe ff ff ff eb 16 e8 b3 bd 97 ff bb fe ff ff ff 48 c7 c7 [ 23.443504][ T294] RSP: 0018:ffffc90000b97ad8 EFLAGS: 00010246 [ 23.449361][ T294] RAX: 72a32a1b40943000 RBX: 0000000000000000 RCX: ffff88811ec462c0 [ 23.457174][ T294] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 23.464909][ T294] RBP: ffffc90000b97af0 R08: ffffffff81521888 R09: ffffed103ee04e93 [ 23.472814][ T294] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 23.480619][ T294] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff855f5b20 [ 23.488424][ T294] FS: 0000555555f19380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 23.497295][ T294] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.503761][ T294] CR2: 0000561ce4fb3448 CR3: 000000011eae8000 CR4: 00000000003506b0 [ 23.511681][ T294] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.519463][ T294] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.527260][ T294] Call Trace: [ 23.530322][ T294] ? show_regs+0x58/0x60 [ 23.534404][ T294] ? __warn+0x160/0x2f0 [ 23.538518][ T294] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 23.543861][ T294] ? report_bug+0x3d9/0x5b0 [ 23.548317][ T294] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 23.553901][ T294] ? handle_bug+0x41/0x70 [ 23.558116][ T294] ? exc_invalid_op+0x1b/0x50 [ 23.562660][ T294] ? asm_exc_invalid_op+0x12/0x20 [ 23.567577][ T294] ? wake_up_klogd+0xb8/0xf0 [ 23.571961][ T294] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 23.577477][ T294] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 23.582887][ T294] sysfs_create_files+0x3de/0x470 [ 23.587799][ T294] ? sysfs_create_file_ns+0x2a0/0x2a0 [ 23.592963][ T294] ? __kasan_check_write+0x14/0x20 [ 23.597962][ T294] ? kobject_get+0xd1/0x120 [ 23.602340][ T294] __device_add_disk+0x9a7/0x11a0 [ 23.607255][ T294] ? device_add_disk+0x40/0x40 [ 23.611798][ T294] ? vsprintf+0x40/0x40 [ 23.615779][ T294] ? device_initialize+0x1e1/0x420 [ 23.620805][ T294] device_add_disk+0x2a/0x40 [ 23.625267][ T294] loop_add+0x580/0x750 [ 23.629311][ T294] loop_control_ioctl+0x448/0x620 [ 23.634117][ T294] ? loop_remove+0xb0/0xb0 [ 23.638437][ T294] ? _raw_spin_unlock_irq+0x4e/0x70 [ 23.643406][ T294] ? ptrace_notify+0x24c/0x350 [ 23.648060][ T294] ? do_notify_parent+0xa10/0xa10 [ 23.652864][ T294] ? security_file_ioctl+0x84/0xb0 [ 23.657872][ T294] ? loop_remove+0xb0/0xb0 [ 23.662160][ T294] __se_sys_ioctl+0x114/0x190 [ 23.666726][ T294] __x64_sys_ioctl+0x7b/0x90 [ 23.671102][ T294] do_syscall_64+0x34/0x70 [ 23.675400][ T294] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 23.681157][ T294] RIP: 0033:0x7f964d101d39 [ 23.685444][ T294] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 23.704960][ T294] RSP: 002b:00007fffb9387978 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 23.713310][ T294] RAX: ffffffffffffffda RBX: 00007fffb9387990 RCX: 00007f964d101d39 [ 23.721211][ T294] RDX: 0000000000000000 RSI: 0000000000004c80 RDI: 0000000000000003 [ 23.729033][ T294] RBP: 0000000000000002 R08: 00007fffb9387716 R09: 00000000000000a0 [ 23.736822][ T294] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fffb938798c [ 23.744607][ T294] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 23.752454][ T294] ---[ end trace f1e413fbe8766ad7 ]--- [pid 294] ioctl(3, LOOP_CTL_ADD, 0) = 0 [pid 294] exit_group(0) = ? [pid 294] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=294, si_uid=0, si_status=0, si_utime=0, si_stime=74} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 296 attached , child_tidptr=0x555555f19650) = 296 [pid 296] set_robust_list(0x555555f19660, 24) = 0 [pid 296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 296] setpgid(0, 0) = 0 [pid 296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 296] write(3, "1000", 4) = 4 [pid 296] close(3) = 0 [pid 296] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [ 23.757728][ T294] loop0: failed to create sysfs files for events [ 23.768400][ T296] ------------[ cut here ]------------ [ 23.773738][ T296] kernfs: can not remove 'events', no directory [ 23.779851][ T296] WARNING: CPU: 0 PID: 296 at fs/kernfs/dir.c:1517 kernfs_remove_by_name_ns+0xbf/0x110 [ 23.789484][ T296] Modules linked in: [ 23.793245][ T296] CPU: 1 PID: 296 Comm: syz-executor149 Tainted: G W 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 23.804728][ T296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 23.814560][ T296] RIP: 0010:kernfs_remove_by_name_ns+0xbf/0x110 [ 23.820633][ T296] Code: ff 03 48 89 df e8 d1 ef ff ff 48 89 df e8 a9 b3 ff ff 31 db eb 27 e8 d0 bd 97 ff 48 c7 c7 40 b7 4a 85 4c 89 fe e8 21 54 6b ff <0f> 0b bb fe ff ff ff eb 16 e8 b3 bd 97 ff bb fe ff ff ff 48 c7 c7 [ 23.840056][ T296] RSP: 0018:ffffc90000b17c18 EFLAGS: 00010246 [ 23.845943][ T296] RAX: 27cde631f483db00 RBX: 0000000000000000 RCX: ffff88811ec40000 [ 23.853777][ T296] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 23.861578][ T296] RBP: ffffc90000b17c30 R08: ffffffff81521888 R09: fffff52000162e99 [ 23.869400][ T296] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 23.877229][ T296] R13: ffffffff86950cc0 R14: 0000000000000000 R15: ffffffff855f5b20 [ 23.885001][ T296] FS: 0000555555f19380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 23.893797][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.900201][ T296] CR2: 00007f964d1790d0 CR3: 000000011eae8000 CR4: 00000000003506b0 [ 23.908024][ T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.915832][ T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.923642][ T296] Call Trace: [ 23.926765][ T296] ? show_regs+0x58/0x60 [ 23.930829][ T296] ? __warn+0x160/0x2f0 [ 23.934820][ T296] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 23.940318][ T296] ? report_bug+0x3d9/0x5b0 [ 23.944635][ T296] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 23.950125][ T296] ? handle_bug+0x41/0x70 [ 23.954272][ T296] ? exc_invalid_op+0x1b/0x50 [ 23.958823][ T296] ? asm_exc_invalid_op+0x12/0x20 [ 23.963645][ T296] ? wake_up_klogd+0xb8/0xf0 [ 23.968096][ T296] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 23.973536][ T296] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 23.979039][ T296] sysfs_remove_files+0xa5/0x100 [ 23.983784][ T296] del_gendisk+0x248/0xa90 [ 23.988061][ T296] ? device_add_disk_no_queue_reg+0x30/0x30 [ 23.993757][ T296] ? radix_tree_delete_item+0x24d/0x350 [ 23.999174][ T296] loop_remove+0x46/0xb0 [ 24.003216][ T296] loop_control_ioctl+0x564/0x620 [ 24.008236][ T296] ? loop_remove+0xb0/0xb0 [ 24.012471][ T296] ? _raw_spin_unlock_irq+0x4e/0x70 [ 24.017521][ T296] ? ptrace_notify+0x24c/0x350 [ 24.022101][ T296] ? do_notify_parent+0xa10/0xa10 [ 24.026985][ T296] ? security_file_ioctl+0x84/0xb0 [ 24.031915][ T296] ? loop_remove+0xb0/0xb0 [ 24.036157][ T296] __se_sys_ioctl+0x114/0x190 [ 24.040702][ T296] __x64_sys_ioctl+0x7b/0x90 [ 24.045108][ T296] do_syscall_64+0x34/0x70 [ 24.049387][ T296] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 24.055084][ T296] RIP: 0033:0x7f964d101d39 [ 24.059361][ T296] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 24.078797][ T296] RSP: 002b:00007fffb9387978 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 24.087060][ T296] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f964d101d39 [ 24.094837][ T296] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 24.102672][ T296] RBP: 000000000000587e R08: 00000000000000a0 R09: 00000000000000a0 [ 24.110474][ T296] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffb938798c [ 24.118290][ T296] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 24.126163][ T296] ---[ end trace f1e413fbe8766ad8 ]--- [ 24.131477][ T296] ------------[ cut here ]------------ [ 24.136760][ T296] kernfs: can not remove 'events_async', no directory [ 24.143418][ T296] WARNING: CPU: 0 PID: 296 at fs/kernfs/dir.c:1517 kernfs_remove_by_name_ns+0xbf/0x110 [ 24.152834][ T296] Modules linked in: [ 24.156562][ T296] CPU: 0 PID: 296 Comm: syz-executor149 Tainted: G W 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 24.168017][ T296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 24.177916][ T296] RIP: 0010:kernfs_remove_by_name_ns+0xbf/0x110 [ 24.183967][ T296] Code: ff 03 48 89 df e8 d1 ef ff ff 48 89 df e8 a9 b3 ff ff 31 db eb 27 e8 d0 bd 97 ff 48 c7 c7 40 b7 4a 85 4c 89 fe e8 21 54 6b ff <0f> 0b bb fe ff ff ff eb 16 e8 b3 bd 97 ff bb fe ff ff ff 48 c7 c7 [ 24.203446][ T296] RSP: 0018:ffffc90000b17c18 EFLAGS: 00010246 [ 24.209414][ T296] RAX: 27cde631f483db00 RBX: 0000000000000000 RCX: ffff88811ec40000 [ 24.217240][ T296] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 24.225024][ T296] RBP: ffffc90000b17c30 R08: ffffffff81521888 R09: ffffed103ee04e93 [ 24.232856][ T296] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 24.240655][ T296] R13: ffffffff86950cc0 R14: 0000000000000000 R15: ffffffff855f5bc0 [ 24.248481][ T296] FS: 0000555555f19380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 24.257229][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.263640][ T296] CR2: 00007f964d1790d0 CR3: 000000011eae8000 CR4: 00000000003506b0 [ 24.271480][ T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.279278][ T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.287097][ T296] Call Trace: [ 24.290210][ T296] ? show_regs+0x58/0x60 [ 24.294288][ T296] ? __warn+0x160/0x2f0 [ 24.298304][ T296] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 24.303747][ T296] ? report_bug+0x3d9/0x5b0 [ 24.308108][ T296] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 24.313555][ T296] ? handle_bug+0x41/0x70 [ 24.317744][ T296] ? exc_invalid_op+0x1b/0x50 [ 24.322239][ T296] ? asm_exc_invalid_op+0x12/0x20 [ 24.327124][ T296] ? wake_up_klogd+0xb8/0xf0 [ 24.331523][ T296] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 24.337009][ T296] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 24.342456][ T296] sysfs_remove_files+0xa5/0x100 [ 24.347252][ T296] del_gendisk+0x248/0xa90 [ 24.351482][ T296] ? device_add_disk_no_queue_reg+0x30/0x30 [ 24.357242][ T296] ? radix_tree_delete_item+0x24d/0x350 [ 24.362592][ T296] loop_remove+0x46/0xb0 [ 24.366692][ T296] loop_control_ioctl+0x564/0x620 [ 24.371529][ T296] ? loop_remove+0xb0/0xb0 [ 24.375805][ T296] ? _raw_spin_unlock_irq+0x4e/0x70 [ 24.380843][ T296] ? ptrace_notify+0x24c/0x350 [ 24.385419][ T296] ? do_notify_parent+0xa10/0xa10 [ 24.390301][ T296] ? security_file_ioctl+0x84/0xb0 [ 24.395222][ T296] ? loop_remove+0xb0/0xb0 [ 24.399497][ T296] __se_sys_ioctl+0x114/0x190 [ 24.403989][ T296] __x64_sys_ioctl+0x7b/0x90 [ 24.408438][ T296] do_syscall_64+0x34/0x70 [ 24.412670][ T296] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 24.418951][ T296] RIP: 0033:0x7f964d101d39 [ 24.423171][ T296] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 24.442664][ T296] RSP: 002b:00007fffb9387978 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 24.450870][ T296] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f964d101d39 [ 24.458693][ T296] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 24.466494][ T296] RBP: 000000000000587e R08: 00000000000000a0 R09: 00000000000000a0 [ 24.474289][ T296] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffb938798c [ 24.482136][ T296] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 24.489928][ T296] ---[ end trace f1e413fbe8766ad9 ]--- [ 24.495206][ T296] ------------[ cut here ]------------ [ 24.500521][ T296] kernfs: can not remove 'events_poll_msecs', no directory [ 24.507588][ T296] WARNING: CPU: 0 PID: 296 at fs/kernfs/dir.c:1517 kernfs_remove_by_name_ns+0xbf/0x110 [ 24.517014][ T296] Modules linked in: [ 24.520738][ T296] CPU: 0 PID: 296 Comm: syz-executor149 Tainted: G W 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 24.532212][ T296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 24.542110][ T296] RIP: 0010:kernfs_remove_by_name_ns+0xbf/0x110 [ 24.548185][ T296] Code: ff 03 48 89 df e8 d1 ef ff ff 48 89 df e8 a9 b3 ff ff 31 db eb 27 e8 d0 bd 97 ff 48 c7 c7 40 b7 4a 85 4c 89 fe e8 21 54 6b ff <0f> 0b bb fe ff ff ff eb 16 e8 b3 bd 97 ff bb fe ff ff ff 48 c7 c7 [ 24.567610][ T296] RSP: 0018:ffffc90000b17c18 EFLAGS: 00010246 [ 24.573496][ T296] RAX: 27cde631f483db00 RBX: 0000000000000000 RCX: ffff88811ec40000 [ 24.581332][ T296] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 24.589134][ T296] RBP: ffffc90000b17c30 R08: ffffffff81521888 R09: ffffed103ee0a600 [ 24.596980][ T296] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 24.604748][ T296] R13: ffffffff86950cc0 R14: 0000000000000000 R15: ffffffff855f5be0 [ 24.612590][ T296] FS: 0000555555f19380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 24.621347][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.627776][ T296] CR2: 00007f964d1790d0 CR3: 000000011eae8000 CR4: 00000000003506b0 [ 24.635559][ T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.643391][ T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.651185][ T296] Call Trace: [ 24.654307][ T296] ? show_regs+0x58/0x60 [ 24.658424][ T296] ? __warn+0x160/0x2f0 [ 24.662375][ T296] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 24.667874][ T296] ? report_bug+0x3d9/0x5b0 [ 24.672183][ T296] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 24.677799][ T296] ? handle_bug+0x41/0x70 [ 24.682027][ T296] ? exc_invalid_op+0x1b/0x50 [ 24.686542][ T296] ? asm_exc_invalid_op+0x12/0x20 [ 24.691310][ T296] ? wake_up_klogd+0xb8/0xf0 [ 24.695733][ T296] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 24.701236][ T296] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 24.706701][ T296] sysfs_remove_files+0xa5/0x100 [ 24.711442][ T296] del_gendisk+0x248/0xa90 [ 24.715694][ T296] ? device_add_disk_no_queue_reg+0x30/0x30 [ 24.721449][ T296] ? radix_tree_delete_item+0x24d/0x350 [ 24.726829][ T296] loop_remove+0x46/0xb0 [ 24.730882][ T296] loop_control_ioctl+0x564/0x620 [ 24.735743][ T296] ? loop_remove+0xb0/0xb0 [ 24.740023][ T296] ? _raw_spin_unlock_irq+0x4e/0x70 [ 24.745032][ T296] ? ptrace_notify+0x24c/0x350 [ 24.749654][ T296] ? do_notify_parent+0xa10/0xa10 [ 24.754502][ T296] ? security_file_ioctl+0x84/0xb0 [ 24.759466][ T296] ? loop_remove+0xb0/0xb0 [ 24.763692][ T296] __se_sys_ioctl+0x114/0x190 [ 24.768230][ T296] __x64_sys_ioctl+0x7b/0x90 [ 24.772634][ T296] do_syscall_64+0x34/0x70 [ 24.776908][ T296] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 24.782697][ T296] RIP: 0033:0x7f964d101d39 [ 24.786973][ T296] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 24.806407][ T296] RSP: 002b:00007fffb9387978 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 24.814640][ T296] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f964d101d39 [ 24.822517][ T296] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 24.830466][ T296] RBP: 000000000000587e R08: 00000000000000a0 R09: 00000000000000a0 [ 24.838232][ T296] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffb938798c [ 24.845994][ T296] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 24.853834][ T296] ---[ end trace f1e413fbe8766ada ]--- [ 24.859155][ T296] ------------[ cut here ]------------ [ 24.864392][ T296] kernfs: can not remove 'bdi', no directory [ 24.870293][ T296] WARNING: CPU: 0 PID: 296 at fs/kernfs/dir.c:1517 kernfs_remove_by_name_ns+0xbf/0x110 [ 24.879690][ T296] Modules linked in: [ 24.883405][ T296] CPU: 0 PID: 296 Comm: syz-executor149 Tainted: G W 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 24.894891][ T296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 24.904783][ T296] RIP: 0010:kernfs_remove_by_name_ns+0xbf/0x110 [ 24.910857][ T296] Code: ff 03 48 89 df e8 d1 ef ff ff 48 89 df e8 a9 b3 ff ff 31 db eb 27 e8 d0 bd 97 ff 48 c7 c7 40 b7 4a 85 4c 89 fe e8 21 54 6b ff <0f> 0b bb fe ff ff ff eb 16 e8 b3 bd 97 ff bb fe ff ff ff 48 c7 c7 [ 24.930308][ T296] RSP: 0018:ffffc90000b17c38 EFLAGS: 00010246 [ 24.936169][ T296] RAX: 27cde631f483db00 RBX: 0000000000000000 RCX: ffff88811ec40000 [ 24.944018][ T296] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 24.951823][ T296] RBP: ffffc90000b17c50 R08: ffffffff81521888 R09: fffff52000162e9d [ 24.959629][ T296] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88811eb5d478 [ 24.967428][ T296] R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff855f5440 [ 24.975226][ T296] FS: 0000555555f19380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 24.984021][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.990434][ T296] CR2: 00007f964d1790d0 CR3: 000000011eae8000 CR4: 00000000003506b0 [ 24.998278][ T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.006040][ T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.013889][ T296] Call Trace: [ 25.016996][ T296] ? show_regs+0x58/0x60 [ 25.021057][ T296] ? __warn+0x160/0x2f0 [ 25.025057][ T296] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 25.030543][ T296] ? report_bug+0x3d9/0x5b0 [ 25.034865][ T296] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 25.040353][ T296] ? handle_bug+0x41/0x70 [ 25.044494][ T296] ? exc_invalid_op+0x1b/0x50 [ 25.049028][ T296] ? asm_exc_invalid_op+0x12/0x20 [ 25.053871][ T296] ? wake_up_klogd+0xb8/0xf0 [ 25.058326][ T296] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 25.063764][ T296] ? kernfs_remove_by_name_ns+0xbf/0x110 [ 25.069260][ T296] sysfs_remove_link+0x50/0x60 [ 25.073829][ T296] del_gendisk+0x477/0xa90 [ 25.078131][ T296] ? device_add_disk_no_queue_reg+0x30/0x30 [ 25.083810][ T296] ? radix_tree_delete_item+0x24d/0x350 [ 25.089209][ T296] loop_remove+0x46/0xb0 [ 25.093268][ T296] loop_control_ioctl+0x564/0x620 [ 25.098158][ T296] ? loop_remove+0xb0/0xb0 [ 25.102384][ T296] ? _raw_spin_unlock_irq+0x4e/0x70 [ 25.107437][ T296] ? ptrace_notify+0x24c/0x350 [ 25.112016][ T296] ? do_notify_parent+0xa10/0xa10 [ 25.116905][ T296] ? security_file_ioctl+0x84/0xb0 [ 25.121823][ T296] ? loop_remove+0xb0/0xb0 [ 25.126074][ T296] __se_sys_ioctl+0x114/0x190 [ 25.130611][ T296] __x64_sys_ioctl+0x7b/0x90 [ 25.135021][ T296] do_syscall_64+0x34/0x70 [ 25.139292][ T296] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 25.144997][ T296] RIP: 0033:0x7f964d101d39 [ 25.149272][ T296] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 25.168703][ T296] RSP: 002b:00007fffb9387978 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 25.176973][ T296] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f964d101d39 [ 25.184749][ T296] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 25.192583][ T296] RBP: 000000000000587e R08: 00000000000000a0 R09: 00000000000000a0 [ 25.200380][ T296] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffb938798c [ 25.208209][ T296] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 25.215993][ T296] ---[ end trace f1e413fbe8766adb ]--- [ 25.221646][ T296] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 25.233165][ T296] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 25.241404][ T296] CPU: 0 PID: 296 Comm: syz-executor149 Tainted: G W 5.10.194-syzkaller-00508-ga27512601c2d #0 [ 25.252859][ T296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 25.262764][ T296] RIP: 0010:strlen+0x2c/0x70 [ 25.267179][ T296] Code: 89 e5 41 57 41 56 41 54 53 49 89 fe 48 c7 c0 ff ff ff ff 49 bf 00 00 00 00 00 fc ff df 48 89 fb 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 [ 25.286620][ T296] RSP: 0018:ffffc90000b17ba8 EFLAGS: 00010246 [ 25.292522][ T296] RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000001 [ 25.300335][ T296] RDX: ffff88811ec40000 RSI: 0000000000000000 RDI: 0000000000000000 [ 25.308145][ T296] RBP: ffffc90000b17bc8 R08: ffffffff81d2b6cb R09: fffff52000162f79 [ 25.315954][ T296] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffffffffff [ 25.323765][ T296] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 25.331579][ T296] FS: 0000555555f19380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 25.340346][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.346768][ T296] CR2: 00007f964d1790d0 CR3: 000000011eae8000 CR4: 00000000003506b0 [ 25.354580][ T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.362390][ T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.370200][ T296] Call Trace: [ 25.373332][ T296] ? __die_body+0x62/0xb0 [ 25.377503][ T296] ? die_addr+0x9f/0xd0 [ 25.381487][ T296] ? exc_general_protection+0x3ff/0x490 [ 25.386869][ T296] ? asm_exc_general_protection+0x1e/0x30 [ 25.392424][ T296] ? kernfs_find_ns+0x7b/0x4a0 [ 25.397024][ T296] ? strlen+0x2c/0x70 [ 25.400845][ T296] kernfs_find_ns+0x95/0x4a0 [ 25.405271][ T296] kernfs_remove_by_name_ns+0x3a/0x110 [ 25.410564][ T296] sysfs_remove_link+0x50/0x60 [ 25.415162][ T296] del_gendisk+0x87b/0xa90 [ 25.419417][ T296] ? device_add_disk_no_queue_reg+0x30/0x30 [ 25.425145][ T296] ? radix_tree_delete_item+0x24d/0x350 [ 25.430525][ T296] loop_remove+0x46/0xb0 [ 25.434605][ T296] loop_control_ioctl+0x564/0x620 [ 25.439464][ T296] ? loop_remove+0xb0/0xb0 [ 25.443722][ T296] ? _raw_spin_unlock_irq+0x4e/0x70 [ 25.448753][ T296] ? ptrace_notify+0x24c/0x350 [ 25.453355][ T296] ? do_notify_parent+0xa10/0xa10 [ 25.458214][ T296] ? security_file_ioctl+0x84/0xb0 [ 25.463160][ T296] ? loop_remove+0xb0/0xb0 [ 25.467413][ T296] __se_sys_ioctl+0x114/0x190 [ 25.471926][ T296] __x64_sys_ioctl+0x7b/0x90 [ 25.476355][ T296] do_syscall_64+0x34/0x70 [ 25.480605][ T296] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 25.486331][ T296] RIP: 0033:0x7f964d101d39 [ 25.490614][ T296] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 25.510035][ T296] RSP: 002b:00007fffb9387978 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 25.518272][ T296] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f964d101d39 [ 25.526084][ T296] RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000003 [ 25.533895][ T296] RBP: 000000000000587e R08: 00000000000000a0 R09: 00000000000000a0 [ 25.541709][ T296] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffb938798c [ 25.549517][ T296] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 25.557337][ T296] Modules linked in: [ 25.561117][ T296] ---[ end trace f1e413fbe8766adc ]--- [ 25.566380][ T296] RIP: 0010:strlen+0x2c/0x70 [ 25.570785][ T296] Code: 89 e5 41 57 41 56 41 54 53 49 89 fe 48 c7 c0 ff ff ff ff 49 bf 00 00 00 00 00 fc ff df 48 89 fb 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 [ 25.590255][ T296] RSP: 0018:ffffc90000b17ba8 EFLAGS: 00010246 [ 25.596137][ T296] RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000001 [ 25.603980][ T296] RDX: ffff88811ec40000 RSI: 0000000000000000 RDI: 0000000000000000 [ 25.611809][ T296] RBP: ffffc90000b17bc8 R08: ffffffff81d2b6cb R09: fffff52000162f79 [ 25.619590][ T296] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffffffffff [ 25.627383][ T296] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 25.635275][ T296] FS: 0000555555f19380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 25.644060][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.650469][ T296] CR2: 00007f964d1790d0 CR3: 000000011eae8000 CR4: 00000000003506b0 [ 25.658295][ T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.666082][ T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.673923][ T296] Kernel panic - not syncing: Fatal exception [ 25.679958][ T296] Kernel Offset: disabled [ 25.684081][ T296] Rebooting in 86400 seconds..