./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor851746980 <...> Warning: Permanently added '10.128.1.59' (ED25519) to the list of known hosts. execve("./syz-executor851746980", ["./syz-executor851746980"], 0x7fff6ae7d5f0 /* 10 vars */) = 0 brk(NULL) = 0x5555572ea000 brk(0x5555572ead00) = 0x5555572ead00 arch_prctl(ARCH_SET_FS, 0x5555572ea380) = 0 set_tid_address(0x5555572ea650) = 289 set_robust_list(0x5555572ea660, 24) = 0 rseq(0x5555572eaca0, 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-executor851746980", 4096) = 27 getrandom("\x52\xc4\xec\x1c\xd9\x0a\x86\xdd", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555572ead00 brk(0x55555730bd00) = 0x55555730bd00 brk(0x55555730c000) = 0x55555730c000 mprotect(0x7f4305d88000, 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=0x5555572ea650) = 290 ./strace-static-x86_64: Process 290 attached [pid 290] set_robust_list(0x5555572ea660, 24) = 0 [pid 290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 290] setpgid(0, 0) = 0 [pid 290] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 290] write(3, "1000", 4) = 4 [pid 290] close(3) = 0 [pid 290] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 290] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 290] write(4, "76", 2) = 2 [pid 290] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [ 22.208724][ T24] audit: type=1400 audit(1709393816.570:66): avc: denied { execmem } for pid=289 comm="syz-executor851" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 22.230034][ T24] audit: type=1400 audit(1709393816.590:67): avc: denied { read } for pid=290 comm="syz-executor851" 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 290] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 290] exit_group(0) = ? [pid 290] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=290, 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=0x5555572ea650) = 293 ./strace-static-x86_64: Process 293 attached [pid 293] set_robust_list(0x5555572ea660, 24) = 0 [pid 293] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 293] setpgid(0, 0) = 0 [pid 293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 293] write(3, "1000", 4) = 4 [pid 293] close(3) = 0 [pid 293] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 293] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 293] write(4, "76", 2) = 2 [ 22.254651][ T24] audit: type=1400 audit(1709393816.590:68): avc: denied { open } for pid=290 comm="syz-executor851" 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 [ 22.279475][ T24] audit: type=1400 audit(1709393816.590:69): avc: denied { ioctl } for pid=290 comm="syz-executor851" path="/dev/loop-control" dev="devtmpfs" ino=110 ioctlcmd=0x4c80 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [ 22.315509][ T293] FAULT_INJECTION: forcing a failure. [ 22.315509][ T293] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 22.328623][ T293] CPU: 1 PID: 293 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 22.338583][ T293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 22.348476][ T293] Call Trace: [ 22.351623][ T293] dump_stack_lvl+0x1e2/0x24b [ 22.356122][ T293] ? bfq_pos_tree_add_move+0x43b/0x43b [ 22.361437][ T293] dump_stack+0x15/0x17 [ 22.365409][ T293] should_fail+0x3c6/0x510 [ 22.369676][ T293] should_fail_alloc_page+0x52/0x60 [ 22.374691][ T293] __alloc_pages_nodemask+0x1b3/0xaf0 [ 22.379914][ T293] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 22.385292][ T293] ? __kasan_check_write+0x14/0x20 [ 22.390239][ T293] ? _raw_spin_lock+0xa4/0x1b0 [ 22.394833][ T293] __get_free_pages+0xe/0x30 [ 22.399258][ T293] selinux_genfs_get_sid+0x56/0x2a0 [ 22.404378][ T293] ? lockref_get+0xb4/0x110 [ 22.408717][ T293] inode_doinit_with_dentry+0x86f/0x1050 [ 22.414184][ T293] ? sb_finish_set_opts+0x7a0/0x7a0 [ 22.419217][ T293] ? current_time+0x1af/0x2f0 [ 22.423817][ T293] selinux_d_instantiate+0x27/0x40 [ 22.428764][ T293] security_d_instantiate+0x9f/0x100 [ 22.433885][ T293] d_instantiate+0x55/0x90 [ 22.438746][ T293] __debugfs_create_file+0x2e6/0x4c0 [ 22.443867][ T293] debugfs_create_file+0x4a/0x60 [ 22.448652][ T293] bdi_register_va+0x2a6/0x610 [ 22.453247][ T293] bdi_register+0xd1/0x120 [ 22.457492][ T293] ? vsnprintf+0x1e1/0x1c70 [ 22.461831][ T293] ? __device_add_disk+0x552/0x11a0 [ 22.466864][ T293] ? bdi_register_va+0x610/0x610 [ 22.471640][ T293] ? __kasan_check_read+0x11/0x20 [ 22.476498][ T293] ? blk_alloc_devt+0xd7/0x330 [ 22.481102][ T293] __device_add_disk+0x5de/0x11a0 [ 22.486310][ T293] ? device_add_disk+0x40/0x40 [ 22.490910][ T293] ? vsprintf+0x40/0x40 [ 22.494911][ T293] ? device_initialize+0x1e1/0x420 [ 22.499850][ T293] device_add_disk+0x2a/0x40 [ 22.504278][ T293] loop_add+0x580/0x750 [ 22.508285][ T293] loop_control_ioctl+0x448/0x620 [ 22.513125][ T293] ? loop_remove+0xb0/0xb0 [ 22.517378][ T293] ? _raw_spin_unlock_irq+0x4e/0x70 [ 22.522413][ T293] ? ptrace_notify+0x24c/0x350 [ 22.527012][ T293] ? do_notify_parent+0xa10/0xa10 [ 22.531877][ T293] ? security_file_ioctl+0x84/0xb0 [ 22.536819][ T293] ? loop_remove+0xb0/0xb0 [ 22.541073][ T293] __se_sys_ioctl+0x114/0x190 [ 22.545585][ T293] __x64_sys_ioctl+0x7b/0x90 [ 22.550018][ T293] do_syscall_64+0x34/0x70 [ 22.554265][ T293] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 22.559994][ T293] RIP: 0033:0x7f4305d14d39 [ 22.564257][ T293] 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 [ 22.583692][ T293] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.591935][ T293] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 22.599746][ T293] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 22.607554][ T293] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 293] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 293] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 293] exit_group(0) = ? [pid 293] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=293, 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=0x5555572ea650) = 294 ./strace-static-x86_64: Process 294 attached [pid 294] set_robust_list(0x5555572ea660, 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] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 294] write(4, "76", 2) = 2 [pid 294] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 294] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [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=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 295 ./strace-static-x86_64: Process 295 attached [pid 295] set_robust_list(0x5555572ea660, 24) = 0 [pid 295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 295] setpgid(0, 0) = 0 [pid 295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 295] write(3, "1000", 4) = 4 [pid 295] close(3) = 0 [pid 295] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 295] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 295] write(4, "76", 2) = 2 [ 22.615365][ T293] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 22.623179][ T293] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 22.672648][ T295] FAULT_INJECTION: forcing a failure. [ 22.672648][ T295] name failslab, interval 1, probability 0, space 0, times 1 [ 22.685095][ T295] CPU: 0 PID: 295 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 22.695115][ T295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 22.705011][ T295] Call Trace: [ 22.708160][ T295] dump_stack_lvl+0x1e2/0x24b [ 22.712661][ T295] ? panic+0x80b/0x80b [ 22.716555][ T295] ? bfq_pos_tree_add_move+0x43b/0x43b [ 22.721862][ T295] ? __lookup_slow+0x2fe/0x400 [ 22.726450][ T295] dump_stack+0x15/0x17 [ 22.730440][ T295] should_fail+0x3c6/0x510 [ 22.734695][ T295] ? new_inode_pseudo+0x7c/0x220 [ 22.739479][ T295] __should_failslab+0xa4/0xe0 [ 22.744068][ T295] should_failslab+0x9/0x20 [ 22.748418][ T295] kmem_cache_alloc+0x3d/0x2e0 [ 22.753008][ T295] new_inode_pseudo+0x7c/0x220 [ 22.757742][ T295] new_inode+0x28/0x1c0 [ 22.761729][ T295] ? start_creating+0x1d4/0x2f0 [ 22.766415][ T295] __debugfs_create_file+0x14d/0x4c0 [ 22.771531][ T295] ? up_write+0x59/0x120 [ 22.775628][ T295] debugfs_create_file+0x4a/0x60 [ 22.780388][ T295] bdi_register_va+0x2a6/0x610 [ 22.784991][ T295] bdi_register+0xd1/0x120 [ 22.789233][ T295] ? vsnprintf+0x1e1/0x1c70 [ 22.793586][ T295] ? __device_add_disk+0x552/0x11a0 [ 22.798615][ T295] ? bdi_register_va+0x610/0x610 [ 22.803380][ T295] ? __kasan_check_read+0x11/0x20 [ 22.808253][ T295] ? blk_alloc_devt+0xd7/0x330 [ 22.812839][ T295] __device_add_disk+0x5de/0x11a0 [ 22.817701][ T295] ? device_add_disk+0x40/0x40 [ 22.822297][ T295] ? vsprintf+0x40/0x40 [ 22.826294][ T295] ? device_initialize+0x1e1/0x420 [ 22.831244][ T295] device_add_disk+0x2a/0x40 [ 22.835663][ T295] loop_add+0x580/0x750 [ 22.839667][ T295] loop_control_ioctl+0x448/0x620 [ 22.845038][ T295] ? loop_remove+0xb0/0xb0 [ 22.849292][ T295] ? _raw_spin_unlock_irq+0x4e/0x70 [ 22.854326][ T295] ? ptrace_notify+0x24c/0x350 [ 22.858935][ T295] ? do_notify_parent+0xa10/0xa10 [ 22.863790][ T295] ? security_file_ioctl+0x84/0xb0 [ 22.868735][ T295] ? loop_remove+0xb0/0xb0 [ 22.872984][ T295] __se_sys_ioctl+0x114/0x190 [ 22.877505][ T295] __x64_sys_ioctl+0x7b/0x90 [ 22.881927][ T295] do_syscall_64+0x34/0x70 [ 22.886178][ T295] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 22.891905][ T295] RIP: 0033:0x7f4305d14d39 [ 22.896164][ T295] 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 [ 22.915604][ T295] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [pid 295] ioctl(3, LOOP_CTL_ADD, 11) = 11 [ 22.923851][ T295] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 22.931665][ T295] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 22.939471][ T295] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 22.947297][ T295] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 22.955174][ T295] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 22.964065][ T295] debugfs: out of free dentries, can not create file 'stats' [pid 295] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 295] exit_group(0) = ? [pid 295] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=295, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 297 ./strace-static-x86_64: Process 297 attached [pid 297] set_robust_list(0x5555572ea660, 24) = 0 [pid 297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 297] setpgid(0, 0) = 0 [pid 297] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 297] write(3, "1000", 4) = 4 [pid 297] close(3) = 0 [pid 297] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 297] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 297] write(4, "76", 2) = 2 [ 23.055707][ T297] FAULT_INJECTION: forcing a failure. [ 23.055707][ T297] name failslab, interval 1, probability 0, space 0, times 0 [ 23.068699][ T297] CPU: 1 PID: 297 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 23.079558][ T297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 23.089473][ T297] Call Trace: [ 23.092586][ T297] dump_stack_lvl+0x1e2/0x24b [ 23.097092][ T297] ? panic+0x80b/0x80b [ 23.101179][ T297] ? bfq_pos_tree_add_move+0x43b/0x43b [ 23.106474][ T297] dump_stack+0x15/0x17 [ 23.110467][ T297] should_fail+0x3c6/0x510 [ 23.114722][ T297] ? security_inode_alloc+0x29/0x120 [ 23.119841][ T297] __should_failslab+0xa4/0xe0 [ 23.124439][ T297] should_failslab+0x9/0x20 [ 23.128778][ T297] kmem_cache_alloc+0x3d/0x2e0 [ 23.133378][ T297] ? slab_post_alloc_hook+0x61/0x2f0 [ 23.138507][ T297] security_inode_alloc+0x29/0x120 [ 23.143467][ T297] inode_init_always+0x767/0x9f0 [ 23.148500][ T297] new_inode_pseudo+0x93/0x220 [ 23.153173][ T297] new_inode+0x28/0x1c0 [ 23.157177][ T297] ? start_creating+0x1d4/0x2f0 [ 23.161860][ T297] __debugfs_create_file+0x14d/0x4c0 [ 23.166970][ T297] ? up_write+0x59/0x120 [ 23.171060][ T297] debugfs_create_file+0x4a/0x60 [ 23.175821][ T297] bdi_register_va+0x2a6/0x610 [ 23.180422][ T297] bdi_register+0xd1/0x120 [ 23.184672][ T297] ? vsnprintf+0x1e1/0x1c70 [ 23.189014][ T297] ? __device_add_disk+0x552/0x11a0 [ 23.194047][ T297] ? bdi_register_va+0x610/0x610 [ 23.198833][ T297] ? __kasan_check_read+0x11/0x20 [ 23.203683][ T297] ? blk_alloc_devt+0xd7/0x330 [ 23.208287][ T297] __device_add_disk+0x5de/0x11a0 [ 23.213148][ T297] ? device_add_disk+0x40/0x40 [ 23.217740][ T297] ? vsprintf+0x40/0x40 [ 23.221736][ T297] ? device_initialize+0x1e1/0x420 [ 23.226682][ T297] device_add_disk+0x2a/0x40 [ 23.231116][ T297] loop_add+0x580/0x750 [ 23.235102][ T297] loop_control_ioctl+0x448/0x620 [ 23.239963][ T297] ? loop_remove+0xb0/0xb0 [ 23.244217][ T297] ? _raw_spin_unlock_irq+0x4e/0x70 [ 23.249252][ T297] ? ptrace_notify+0x24c/0x350 [ 23.253865][ T297] ? do_notify_parent+0xa10/0xa10 [ 23.258716][ T297] ? security_file_ioctl+0x84/0xb0 [ 23.263661][ T297] ? loop_remove+0xb0/0xb0 [ 23.267910][ T297] __se_sys_ioctl+0x114/0x190 [ 23.272426][ T297] __x64_sys_ioctl+0x7b/0x90 [ 23.276852][ T297] do_syscall_64+0x34/0x70 [ 23.281104][ T297] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 23.286839][ T297] RIP: 0033:0x7f4305d14d39 [ 23.291083][ T297] 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 [ 23.310524][ T297] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 23.318771][ T297] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 23.326666][ T297] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 23.334479][ T297] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 23.342294][ T297] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [pid 297] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 297] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 297] exit_group(0) = ? [pid 297] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=297, 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=0x5555572ea650) = 298 ./strace-static-x86_64: Process 298 attached [pid 298] set_robust_list(0x5555572ea660, 24) = 0 [pid 298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 298] setpgid(0, 0) = 0 [pid 298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 298] write(3, "1000", 4) = 4 [pid 298] close(3) = 0 [pid 298] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 298] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 298] write(4, "76", 2) = 2 [pid 298] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 298] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 298] exit_group(0) = ? [pid 298] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=298, 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./strace-static-x86_64: Process 299 attached [pid 299] set_robust_list(0x5555572ea660, 24) = 0 [pid 289] <... clone resumed>, child_tidptr=0x5555572ea650) = 299 [pid 299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 299] setpgid(0, 0) = 0 [pid 299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 299] write(3, "1000", 4) = 4 [pid 299] close(3) = 0 [pid 299] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 299] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 299] write(4, "76", 2) = 2 [ 23.350099][ T297] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 23.358004][ T297] debugfs: out of free dentries, can not create file 'stats' [ 23.415269][ T299] FAULT_INJECTION: forcing a failure. [ 23.415269][ T299] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 23.428352][ T299] CPU: 1 PID: 299 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 23.438338][ T299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 23.448231][ T299] Call Trace: [ 23.451365][ T299] dump_stack_lvl+0x1e2/0x24b [ 23.456049][ T299] ? bfq_pos_tree_add_move+0x43b/0x43b [ 23.461342][ T299] ? stack_trace_save+0x113/0x1c0 [ 23.466380][ T299] dump_stack+0x15/0x17 [ 23.470365][ T299] should_fail+0x3c6/0x510 [ 23.474630][ T299] should_fail_alloc_page+0x52/0x60 [ 23.479649][ T299] __alloc_pages_nodemask+0x1b3/0xaf0 [ 23.484865][ T299] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 23.490238][ T299] ? __kasan_check_write+0x14/0x20 [ 23.495184][ T299] ? _raw_spin_lock+0xa4/0x1b0 [ 23.499785][ T299] __get_free_pages+0xe/0x30 [ 23.504213][ T299] selinux_genfs_get_sid+0x56/0x2a0 [ 23.509246][ T299] ? lockref_get+0xb4/0x110 [ 23.513583][ T299] inode_doinit_with_dentry+0x86f/0x1050 [ 23.519054][ T299] ? sb_finish_set_opts+0x7a0/0x7a0 [ 23.524089][ T299] ? current_time+0x1af/0x2f0 [ 23.528619][ T299] selinux_d_instantiate+0x27/0x40 [ 23.533559][ T299] security_d_instantiate+0x9f/0x100 [ 23.538686][ T299] d_instantiate+0x55/0x90 [ 23.542924][ T299] debugfs_create_dir+0x249/0x450 [ 23.547781][ T299] bdi_register_va+0x25b/0x610 [ 23.552383][ T299] bdi_register+0xd1/0x120 [ 23.556636][ T299] ? vsnprintf+0x1e1/0x1c70 [ 23.560983][ T299] ? __device_add_disk+0x552/0x11a0 [ 23.566011][ T299] ? bdi_register_va+0x610/0x610 [ 23.570783][ T299] ? __kasan_check_read+0x11/0x20 [ 23.575646][ T299] ? blk_alloc_devt+0xd7/0x330 [ 23.580248][ T299] __device_add_disk+0x5de/0x11a0 [ 23.585102][ T299] ? device_add_disk+0x40/0x40 [ 23.589700][ T299] ? vsprintf+0x40/0x40 [ 23.593783][ T299] ? device_initialize+0x1e1/0x420 [ 23.598743][ T299] device_add_disk+0x2a/0x40 [ 23.603155][ T299] loop_add+0x580/0x750 [ 23.607157][ T299] loop_control_ioctl+0x448/0x620 [ 23.612008][ T299] ? loop_remove+0xb0/0xb0 [ 23.616260][ T299] ? _raw_spin_unlock_irq+0x4e/0x70 [ 23.621557][ T299] ? ptrace_notify+0x24c/0x350 [ 23.626154][ T299] ? do_notify_parent+0xa10/0xa10 [ 23.631018][ T299] ? security_file_ioctl+0x84/0xb0 [ 23.635966][ T299] ? loop_remove+0xb0/0xb0 [ 23.640215][ T299] __se_sys_ioctl+0x114/0x190 [ 23.644732][ T299] __x64_sys_ioctl+0x7b/0x90 [ 23.649156][ T299] do_syscall_64+0x34/0x70 [ 23.653416][ T299] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 23.659144][ T299] RIP: 0033:0x7f4305d14d39 [ 23.663390][ T299] 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 [ 23.682832][ T299] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 23.691074][ T299] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 23.698886][ T299] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 23.706711][ T299] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 299] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 299] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 299] exit_group(0) = ? [pid 299] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=299, 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=0x5555572ea650) = 300 ./strace-static-x86_64: Process 300 attached [pid 300] set_robust_list(0x5555572ea660, 24) = 0 [pid 300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] setpgid(0, 0) = 0 [pid 300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 300] write(3, "1000", 4) = 4 [pid 300] close(3) = 0 [pid 300] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 300] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 300] write(4, "76", 2) = 2 [pid 300] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 300] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 300] exit_group(0) = ? [pid 300] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=300, 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=0x5555572ea650) = 301 ./strace-static-x86_64: Process 301 attached [pid 301] set_robust_list(0x5555572ea660, 24) = 0 [pid 301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 301] setpgid(0, 0) = 0 [pid 301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 301] write(3, "1000", 4) = 4 [pid 301] close(3) = 0 [pid 301] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 301] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 301] write(4, "76", 2) = 2 [ 23.714512][ T299] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 23.722332][ T299] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 23.783983][ T301] FAULT_INJECTION: forcing a failure. [ 23.783983][ T301] name failslab, interval 1, probability 0, space 0, times 0 [ 23.796534][ T301] CPU: 1 PID: 301 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 23.806557][ T301] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 23.816452][ T301] Call Trace: [ 23.819592][ T301] dump_stack_lvl+0x1e2/0x24b [ 23.824094][ T301] ? panic+0x80b/0x80b [ 23.827997][ T301] ? bfq_pos_tree_add_move+0x43b/0x43b [ 23.833294][ T301] dump_stack+0x15/0x17 [ 23.837298][ T301] should_fail+0x3c6/0x510 [ 23.841569][ T301] ? security_inode_alloc+0x29/0x120 [ 23.846668][ T301] __should_failslab+0xa4/0xe0 [ 23.851271][ T301] should_failslab+0x9/0x20 [ 23.855614][ T301] kmem_cache_alloc+0x3d/0x2e0 [ 23.860199][ T301] ? slab_post_alloc_hook+0x61/0x2f0 [ 23.865325][ T301] security_inode_alloc+0x29/0x120 [ 23.870267][ T301] inode_init_always+0x767/0x9f0 [ 23.875040][ T301] new_inode_pseudo+0x93/0x220 [ 23.879658][ T301] new_inode+0x28/0x1c0 [ 23.883629][ T301] ? start_creating+0x1d4/0x2f0 [ 23.888316][ T301] __debugfs_create_file+0x14d/0x4c0 [ 23.893439][ T301] ? up_write+0x59/0x120 [ 23.897520][ T301] debugfs_create_file+0x4a/0x60 [ 23.902291][ T301] bdi_register_va+0x2a6/0x610 [ 23.906890][ T301] bdi_register+0xd1/0x120 [ 23.911143][ T301] ? vsnprintf+0x1e1/0x1c70 [ 23.915483][ T301] ? __device_add_disk+0x552/0x11a0 [ 23.920518][ T301] ? bdi_register_va+0x610/0x610 [ 23.925295][ T301] ? __kasan_check_read+0x11/0x20 [ 23.930153][ T301] ? blk_alloc_devt+0xd7/0x330 [ 23.934753][ T301] __device_add_disk+0x5de/0x11a0 [ 23.939630][ T301] ? device_add_disk+0x40/0x40 [ 23.944209][ T301] ? vsprintf+0x40/0x40 [ 23.948207][ T301] ? device_initialize+0x1e1/0x420 [ 23.953161][ T301] device_add_disk+0x2a/0x40 [ 23.957598][ T301] loop_add+0x580/0x750 [ 23.961575][ T301] loop_control_ioctl+0x448/0x620 [ 23.966438][ T301] ? loop_remove+0xb0/0xb0 [ 23.970687][ T301] ? _raw_spin_unlock_irq+0x4e/0x70 [ 23.975747][ T301] ? ptrace_notify+0x24c/0x350 [ 23.980326][ T301] ? do_notify_parent+0xa10/0xa10 [ 23.985184][ T301] ? security_file_ioctl+0x84/0xb0 [ 23.990126][ T301] ? loop_remove+0xb0/0xb0 [ 23.994382][ T301] __se_sys_ioctl+0x114/0x190 [ 23.998908][ T301] __x64_sys_ioctl+0x7b/0x90 [ 24.003341][ T301] do_syscall_64+0x34/0x70 [ 24.007576][ T301] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 24.013432][ T301] RIP: 0033:0x7f4305d14d39 [ 24.017651][ T301] 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 [ 24.037091][ T301] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 24.045324][ T301] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 24.053588][ T301] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 24.061488][ T301] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 24.069292][ T301] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 24.077092][ T301] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 301] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 301] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 301] exit_group(0) = ? [pid 301] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=301, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 303 ./strace-static-x86_64: Process 303 attached [pid 303] set_robust_list(0x5555572ea660, 24) = 0 [pid 303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 303] setpgid(0, 0) = 0 [pid 303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 303] write(3, "1000", 4) = 4 [pid 303] close(3) = 0 [pid 303] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 303] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 303] write(4, "76", 2) = 2 [ 24.085152][ T301] debugfs: out of free dentries, can not create file 'stats' [ 24.135581][ T303] FAULT_INJECTION: forcing a failure. [ 24.135581][ T303] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 24.148737][ T303] CPU: 1 PID: 303 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 24.158778][ T303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 24.168669][ T303] Call Trace: [ 24.171806][ T303] dump_stack_lvl+0x1e2/0x24b [ 24.176313][ T303] ? bfq_pos_tree_add_move+0x43b/0x43b [ 24.181612][ T303] dump_stack+0x15/0x17 [ 24.185599][ T303] should_fail+0x3c6/0x510 [ 24.189861][ T303] should_fail_alloc_page+0x52/0x60 [ 24.194884][ T303] __alloc_pages_nodemask+0x1b3/0xaf0 [ 24.200098][ T303] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 24.205475][ T303] ? __kasan_check_write+0x14/0x20 [ 24.210422][ T303] ? _raw_spin_lock+0xa4/0x1b0 [ 24.215019][ T303] __get_free_pages+0xe/0x30 [ 24.219450][ T303] selinux_genfs_get_sid+0x56/0x2a0 [ 24.224479][ T303] ? lockref_get+0xb4/0x110 [ 24.228820][ T303] inode_doinit_with_dentry+0x86f/0x1050 [ 24.234297][ T303] ? sb_finish_set_opts+0x7a0/0x7a0 [ 24.239327][ T303] ? current_time+0x1af/0x2f0 [ 24.243923][ T303] selinux_d_instantiate+0x27/0x40 [ 24.248867][ T303] security_d_instantiate+0x9f/0x100 [ 24.253999][ T303] d_instantiate+0x55/0x90 [ 24.258244][ T303] __debugfs_create_file+0x2e6/0x4c0 [ 24.263365][ T303] debugfs_create_file+0x4a/0x60 [ 24.268138][ T303] bdi_register_va+0x2a6/0x610 [ 24.272737][ T303] bdi_register+0xd1/0x120 [ 24.277004][ T303] ? vsnprintf+0x1e1/0x1c70 [ 24.281332][ T303] ? __device_add_disk+0x552/0x11a0 [ 24.286365][ T303] ? bdi_register_va+0x610/0x610 [ 24.291137][ T303] ? __kasan_check_read+0x11/0x20 [ 24.296003][ T303] ? blk_alloc_devt+0xd7/0x330 [ 24.300601][ T303] __device_add_disk+0x5de/0x11a0 [ 24.305461][ T303] ? device_add_disk+0x40/0x40 [ 24.310059][ T303] ? vsprintf+0x40/0x40 [ 24.314063][ T303] ? device_initialize+0x1e1/0x420 [ 24.319006][ T303] device_add_disk+0x2a/0x40 [ 24.323426][ T303] loop_add+0x580/0x750 [ 24.327423][ T303] loop_control_ioctl+0x448/0x620 [ 24.332279][ T303] ? loop_remove+0xb0/0xb0 [ 24.336539][ T303] ? _raw_spin_unlock_irq+0x4e/0x70 [ 24.341564][ T303] ? ptrace_notify+0x24c/0x350 [ 24.346166][ T303] ? do_notify_parent+0xa10/0xa10 [ 24.351036][ T303] ? security_file_ioctl+0x84/0xb0 [ 24.355980][ T303] ? loop_remove+0xb0/0xb0 [ 24.360228][ T303] __se_sys_ioctl+0x114/0x190 [ 24.364741][ T303] __x64_sys_ioctl+0x7b/0x90 [ 24.369167][ T303] do_syscall_64+0x34/0x70 [ 24.373419][ T303] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 24.379145][ T303] RIP: 0033:0x7f4305d14d39 [ 24.383412][ T303] 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 [ 24.402843][ T303] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 24.411088][ T303] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 24.418898][ T303] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 24.426707][ T303] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 303] ioctl(3, LOOP_CTL_ADD, 11) = 11 [ 24.434526][ T303] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 24.442330][ T303] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 303] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 303] exit_group(0) = ? [pid 303] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=303, 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=0x5555572ea650) = 304 ./strace-static-x86_64: Process 304 attached [pid 304] set_robust_list(0x5555572ea660, 24) = 0 [pid 304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 304] setpgid(0, 0) = 0 [pid 304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 304] write(3, "1000", 4) = 4 [pid 304] close(3) = 0 [pid 304] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 304] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 304] write(4, "76", 2) = 2 [ 24.488514][ T292] udevd[292]: inotify_add_watch(7, /dev/loop11, 10) failed: No such file or directory [ 24.502034][ T304] FAULT_INJECTION: forcing a failure. [ 24.502034][ T304] name failslab, interval 1, probability 0, space 0, times 0 [ 24.514756][ T304] CPU: 0 PID: 304 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 24.524780][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 24.534672][ T304] Call Trace: [ 24.537807][ T304] dump_stack_lvl+0x1e2/0x24b [ 24.542313][ T304] ? panic+0x80b/0x80b [ 24.546219][ T304] ? bfq_pos_tree_add_move+0x43b/0x43b [ 24.551514][ T304] dump_stack+0x15/0x17 [ 24.555505][ T304] should_fail+0x3c6/0x510 [ 24.559757][ T304] ? security_inode_alloc+0x29/0x120 [ 24.564880][ T304] __should_failslab+0xa4/0xe0 [ 24.569480][ T304] should_failslab+0x9/0x20 [ 24.573817][ T304] kmem_cache_alloc+0x3d/0x2e0 [ 24.578420][ T304] ? slab_post_alloc_hook+0x61/0x2f0 [ 24.583539][ T304] security_inode_alloc+0x29/0x120 [ 24.588487][ T304] inode_init_always+0x767/0x9f0 [ 24.593263][ T304] new_inode_pseudo+0x93/0x220 [ 24.597864][ T304] new_inode+0x28/0x1c0 [ 24.601882][ T304] ? start_creating+0x1d4/0x2f0 [ 24.606546][ T304] __debugfs_create_file+0x14d/0x4c0 [ 24.611668][ T304] ? up_write+0x59/0x120 [ 24.615742][ T304] debugfs_create_file+0x4a/0x60 [ 24.620518][ T304] bdi_register_va+0x2a6/0x610 [ 24.625115][ T304] bdi_register+0xd1/0x120 [ 24.629373][ T304] ? vsnprintf+0x1e1/0x1c70 [ 24.633709][ T304] ? __device_add_disk+0x552/0x11a0 [ 24.638743][ T304] ? bdi_register_va+0x610/0x610 [ 24.643534][ T304] ? __kasan_check_read+0x11/0x20 [ 24.648385][ T304] ? blk_alloc_devt+0xd7/0x330 [ 24.652979][ T304] __device_add_disk+0x5de/0x11a0 [ 24.657838][ T304] ? device_add_disk+0x40/0x40 [ 24.662437][ T304] ? vsprintf+0x40/0x40 [ 24.666429][ T304] ? device_initialize+0x1e1/0x420 [ 24.671377][ T304] device_add_disk+0x2a/0x40 [ 24.675825][ T304] loop_add+0x580/0x750 [ 24.679822][ T304] loop_control_ioctl+0x448/0x620 [ 24.684665][ T304] ? loop_remove+0xb0/0xb0 [ 24.688911][ T304] ? _raw_spin_unlock_irq+0x4e/0x70 [ 24.693945][ T304] ? ptrace_notify+0x24c/0x350 [ 24.698545][ T304] ? do_notify_parent+0xa10/0xa10 [ 24.703408][ T304] ? security_file_ioctl+0x84/0xb0 [ 24.708354][ T304] ? loop_remove+0xb0/0xb0 [ 24.712603][ T304] __se_sys_ioctl+0x114/0x190 [ 24.717116][ T304] __x64_sys_ioctl+0x7b/0x90 [ 24.721544][ T304] do_syscall_64+0x34/0x70 [ 24.725800][ T304] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 24.731525][ T304] RIP: 0033:0x7f4305d14d39 [ 24.735778][ T304] 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 [ 24.755236][ T304] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 24.763467][ T304] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 24.771276][ T304] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 24.779179][ T304] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 304] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 304] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 304] exit_group(0) = ? [pid 304] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=304, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 305 ./strace-static-x86_64: Process 305 attached [pid 305] set_robust_list(0x5555572ea660, 24) = 0 [pid 305] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 305] setpgid(0, 0) = 0 [pid 305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 305] write(3, "1000", 4) = 4 [pid 305] close(3) = 0 [pid 305] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 305] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 305] write(4, "76", 2) = 2 [pid 305] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 305] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 305] exit_group(0) = ? [ 24.786992][ T304] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 24.794802][ T304] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 24.803237][ T304] debugfs: out of free dentries, can not create file 'stats' [pid 305] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=305, 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=0x5555572ea650) = 306 ./strace-static-x86_64: Process 306 attached [pid 306] set_robust_list(0x5555572ea660, 24) = 0 [pid 306] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 306] setpgid(0, 0) = 0 [pid 306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 306] write(3, "1000", 4) = 4 [pid 306] close(3) = 0 [pid 306] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 306] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 306] write(4, "76", 2) = 2 [ 24.865090][ T306] FAULT_INJECTION: forcing a failure. [ 24.865090][ T306] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 24.878170][ T306] CPU: 1 PID: 306 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 24.888160][ T306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 24.898059][ T306] Call Trace: [ 24.901189][ T306] dump_stack_lvl+0x1e2/0x24b [ 24.905699][ T306] ? bfq_pos_tree_add_move+0x43b/0x43b [ 24.911002][ T306] dump_stack+0x15/0x17 [ 24.914982][ T306] should_fail+0x3c6/0x510 [ 24.919241][ T306] should_fail_alloc_page+0x52/0x60 [ 24.924274][ T306] __alloc_pages_nodemask+0x1b3/0xaf0 [ 24.929477][ T306] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 24.934859][ T306] ? __kasan_check_write+0x14/0x20 [ 24.939820][ T306] ? _raw_spin_lock+0xa4/0x1b0 [ 24.944411][ T306] __get_free_pages+0xe/0x30 [ 24.948844][ T306] selinux_genfs_get_sid+0x56/0x2a0 [ 24.953957][ T306] ? lockref_get+0xb4/0x110 [ 24.958383][ T306] inode_doinit_with_dentry+0x86f/0x1050 [ 24.963853][ T306] ? sb_finish_set_opts+0x7a0/0x7a0 [ 24.968884][ T306] ? current_time+0x1af/0x2f0 [ 24.973403][ T306] selinux_d_instantiate+0x27/0x40 [ 24.978348][ T306] security_d_instantiate+0x9f/0x100 [ 24.983464][ T306] d_instantiate+0x55/0x90 [ 24.987717][ T306] __debugfs_create_file+0x2e6/0x4c0 [ 24.992837][ T306] debugfs_create_file+0x4a/0x60 [ 24.997613][ T306] bdi_register_va+0x2a6/0x610 [ 25.002214][ T306] bdi_register+0xd1/0x120 [ 25.006466][ T306] ? vsnprintf+0x1e1/0x1c70 [ 25.010804][ T306] ? __device_add_disk+0x552/0x11a0 [ 25.015836][ T306] ? bdi_register_va+0x610/0x610 [ 25.020611][ T306] ? __kasan_check_read+0x11/0x20 [ 25.025482][ T306] ? blk_alloc_devt+0xd7/0x330 [ 25.030071][ T306] __device_add_disk+0x5de/0x11a0 [ 25.034936][ T306] ? device_add_disk+0x40/0x40 [ 25.039670][ T306] ? vsprintf+0x40/0x40 [ 25.043653][ T306] ? device_initialize+0x1e1/0x420 [ 25.048605][ T306] device_add_disk+0x2a/0x40 [ 25.053020][ T306] loop_add+0x580/0x750 [ 25.057013][ T306] loop_control_ioctl+0x448/0x620 [ 25.061873][ T306] ? loop_remove+0xb0/0xb0 [ 25.066127][ T306] ? _raw_spin_unlock_irq+0x4e/0x70 [ 25.071158][ T306] ? ptrace_notify+0x24c/0x350 [ 25.075759][ T306] ? do_notify_parent+0xa10/0xa10 [ 25.080622][ T306] ? security_file_ioctl+0x84/0xb0 [ 25.085566][ T306] ? loop_remove+0xb0/0xb0 [ 25.089909][ T306] __se_sys_ioctl+0x114/0x190 [ 25.094431][ T306] __x64_sys_ioctl+0x7b/0x90 [ 25.098934][ T306] do_syscall_64+0x34/0x70 [ 25.103188][ T306] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 25.108913][ T306] RIP: 0033:0x7f4305d14d39 [ 25.113167][ T306] 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 [ 25.132615][ T306] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 25.140855][ T306] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 25.148665][ T306] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 25.156475][ T306] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 306] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 306] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 306] exit_group(0) = ? [pid 306] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=306, 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 308 attached , child_tidptr=0x5555572ea650) = 308 [pid 308] set_robust_list(0x5555572ea660, 24) = 0 [pid 308] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 308] setpgid(0, 0) = 0 [pid 308] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 308] write(3, "1000", 4) = 4 [pid 308] close(3) = 0 [pid 308] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 308] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 308] write(4, "76", 2) = 2 [ 25.164289][ T306] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 25.172097][ T306] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 25.204977][ T308] FAULT_INJECTION: forcing a failure. [ 25.204977][ T308] name failslab, interval 1, probability 0, space 0, times 0 [ 25.217449][ T308] CPU: 1 PID: 308 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 25.227443][ T308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 25.237335][ T308] Call Trace: [ 25.240468][ T308] dump_stack_lvl+0x1e2/0x24b [ 25.244976][ T308] ? panic+0x80b/0x80b [ 25.248882][ T308] ? bfq_pos_tree_add_move+0x43b/0x43b [ 25.254177][ T308] dump_stack+0x15/0x17 [ 25.258168][ T308] should_fail+0x3c6/0x510 [ 25.262424][ T308] ? security_inode_alloc+0x29/0x120 [ 25.267541][ T308] __should_failslab+0xa4/0xe0 [ 25.272141][ T308] should_failslab+0x9/0x20 [ 25.276484][ T308] kmem_cache_alloc+0x3d/0x2e0 [ 25.281082][ T308] ? slab_post_alloc_hook+0x61/0x2f0 [ 25.286205][ T308] security_inode_alloc+0x29/0x120 [ 25.291238][ T308] inode_init_always+0x767/0x9f0 [ 25.296010][ T308] new_inode_pseudo+0x93/0x220 [ 25.300611][ T308] new_inode+0x28/0x1c0 [ 25.304602][ T308] ? start_creating+0x1d4/0x2f0 [ 25.309294][ T308] __debugfs_create_file+0x14d/0x4c0 [ 25.314412][ T308] ? up_write+0x59/0x120 [ 25.318490][ T308] debugfs_create_file+0x4a/0x60 [ 25.323264][ T308] bdi_register_va+0x2a6/0x610 [ 25.327865][ T308] bdi_register+0xd1/0x120 [ 25.332118][ T308] ? vsnprintf+0x1e1/0x1c70 [ 25.336456][ T308] ? __device_add_disk+0x552/0x11a0 [ 25.341488][ T308] ? bdi_register_va+0x610/0x610 [ 25.346266][ T308] ? __kasan_check_read+0x11/0x20 [ 25.351124][ T308] ? blk_alloc_devt+0xd7/0x330 [ 25.355725][ T308] __device_add_disk+0x5de/0x11a0 [ 25.360586][ T308] ? device_add_disk+0x40/0x40 [ 25.365183][ T308] ? vsprintf+0x40/0x40 [ 25.369177][ T308] ? device_initialize+0x1e1/0x420 [ 25.374125][ T308] device_add_disk+0x2a/0x40 [ 25.378552][ T308] loop_add+0x580/0x750 [ 25.382541][ T308] loop_control_ioctl+0x448/0x620 [ 25.387405][ T308] ? loop_remove+0xb0/0xb0 [ 25.391658][ T308] ? _raw_spin_unlock_irq+0x4e/0x70 [ 25.396691][ T308] ? ptrace_notify+0x24c/0x350 [ 25.401293][ T308] ? do_notify_parent+0xa10/0xa10 [ 25.406151][ T308] ? security_file_ioctl+0x84/0xb0 [ 25.411099][ T308] ? loop_remove+0xb0/0xb0 [ 25.415359][ T308] __se_sys_ioctl+0x114/0x190 [ 25.419865][ T308] __x64_sys_ioctl+0x7b/0x90 [ 25.424293][ T308] do_syscall_64+0x34/0x70 [ 25.428548][ T308] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 25.434271][ T308] RIP: 0033:0x7f4305d14d39 [ 25.438533][ T308] 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 [ 25.457972][ T308] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [pid 308] ioctl(3, LOOP_CTL_ADD, 11) = 11 [ 25.466220][ T308] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 25.474022][ T308] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 25.482094][ T308] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 25.489903][ T308] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 25.497718][ T308] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 25.505682][ T308] debugfs: out of free dentries, can not create file 'stats' [pid 308] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 308] exit_group(0) = ? [pid 308] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=308, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 309 ./strace-static-x86_64: Process 309 attached [pid 309] set_robust_list(0x5555572ea660, 24) = 0 [pid 309] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 309] setpgid(0, 0) = 0 [pid 309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 309] write(3, "1000", 4) = 4 [pid 309] close(3) = 0 [pid 309] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 309] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 309] write(4, "76", 2) = 2 [ 25.575494][ T309] FAULT_INJECTION: forcing a failure. [ 25.575494][ T309] name failslab, interval 1, probability 0, space 0, times 0 [ 25.588071][ T309] CPU: 0 PID: 309 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 25.598104][ T309] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 25.608004][ T309] Call Trace: [ 25.611131][ T309] dump_stack_lvl+0x1e2/0x24b [ 25.615641][ T309] ? bfq_pos_tree_add_move+0x43b/0x43b [ 25.620938][ T309] ? stack_trace_save+0x113/0x1c0 [ 25.625795][ T309] dump_stack+0x15/0x17 [ 25.629788][ T309] should_fail+0x3c6/0x510 [ 25.634048][ T309] ? __d_alloc+0x2d/0x6c0 [ 25.638208][ T309] __should_failslab+0xa4/0xe0 [ 25.642813][ T309] should_failslab+0x9/0x20 [ 25.647151][ T309] kmem_cache_alloc+0x3d/0x2e0 [ 25.651747][ T309] __d_alloc+0x2d/0x6c0 [ 25.655743][ T309] d_alloc_parallel+0xe7/0x12f0 [ 25.660430][ T309] ? avc_denied+0x1b0/0x1b0 [ 25.664764][ T309] ? slab_post_alloc_hook+0x61/0x2f0 [ 25.669897][ T309] ? selinux_inode_permission+0x449/0x690 [ 25.675441][ T309] ? d_hash_and_lookup+0x1e0/0x1e0 [ 25.680400][ T309] ? selinux_inode_follow_link+0x3c0/0x3c0 [ 25.686031][ T309] ? __kasan_check_write+0x14/0x20 [ 25.690985][ T309] ? _raw_spin_lock+0xa4/0x1b0 [ 25.695579][ T309] ? _raw_spin_trylock_bh+0x190/0x190 [ 25.700785][ T309] __lookup_slow+0x154/0x400 [ 25.705221][ T309] ? lookup_one_len+0x2c0/0x2c0 [ 25.709902][ T309] ? lookup_one_len_common+0x2f1/0x450 [ 25.715199][ T309] lookup_one_len+0x180/0x2c0 [ 25.719710][ T309] ? __kasan_check_write+0x14/0x20 [ 25.724657][ T309] ? lookup_one_len_common+0x450/0x450 [ 25.729950][ T309] ? simple_pin_fs+0x99/0x160 [ 25.734461][ T309] start_creating+0x161/0x2f0 [ 25.738975][ T309] __debugfs_create_file+0x75/0x4c0 [ 25.744011][ T309] ? up_write+0x59/0x120 [ 25.748089][ T309] debugfs_create_file+0x4a/0x60 [ 25.752862][ T309] bdi_register_va+0x2a6/0x610 [ 25.757468][ T309] bdi_register+0xd1/0x120 [ 25.761711][ T309] ? vsnprintf+0x1e1/0x1c70 [ 25.766052][ T309] ? __device_add_disk+0x552/0x11a0 [ 25.771091][ T309] ? bdi_register_va+0x610/0x610 [ 25.775864][ T309] ? __kasan_check_read+0x11/0x20 [ 25.780720][ T309] ? blk_alloc_devt+0xd7/0x330 [ 25.785321][ T309] __device_add_disk+0x5de/0x11a0 [ 25.790184][ T309] ? device_add_disk+0x40/0x40 [ 25.794781][ T309] ? vsprintf+0x40/0x40 [ 25.798783][ T309] ? device_initialize+0x1e1/0x420 [ 25.803724][ T309] device_add_disk+0x2a/0x40 [ 25.808234][ T309] loop_add+0x580/0x750 [ 25.812228][ T309] loop_control_ioctl+0x448/0x620 [ 25.817088][ T309] ? loop_remove+0xb0/0xb0 [ 25.821345][ T309] ? _raw_spin_unlock_irq+0x4e/0x70 [ 25.826386][ T309] ? ptrace_notify+0x24c/0x350 [ 25.830976][ T309] ? do_notify_parent+0xa10/0xa10 [ 25.835858][ T309] ? security_file_ioctl+0x84/0xb0 [ 25.840788][ T309] ? loop_remove+0xb0/0xb0 [ 25.845037][ T309] __se_sys_ioctl+0x114/0x190 [ 25.849553][ T309] __x64_sys_ioctl+0x7b/0x90 [ 25.853980][ T309] do_syscall_64+0x34/0x70 [ 25.858243][ T309] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 25.863968][ T309] RIP: 0033:0x7f4305d14d39 [ 25.868210][ T309] 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 [ 25.887656][ T309] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 25.895899][ T309] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 25.903706][ T309] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 25.911519][ T309] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 25.919337][ T309] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [pid 309] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 309] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 309] exit_group(0) = ? [pid 309] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=309, 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=0x5555572ea650) = 310 ./strace-static-x86_64: Process 310 attached [pid 310] set_robust_list(0x5555572ea660, 24) = 0 [pid 310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 310] setpgid(0, 0) = 0 [pid 310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 310] write(3, "1000", 4) = 4 [pid 310] close(3) = 0 [pid 310] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 310] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 310] write(4, "76", 2) = 2 [pid 310] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 310] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 310] exit_group(0) = ? [pid 310] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=310, 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=0x5555572ea650) = 311 ./strace-static-x86_64: Process 311 attached [pid 311] set_robust_list(0x5555572ea660, 24) = 0 [pid 311] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 311] setpgid(0, 0) = 0 [pid 311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 311] write(3, "1000", 4) = 4 [pid 311] close(3) = 0 [pid 311] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 311] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 311] write(4, "76", 2) = 2 [ 25.927141][ T309] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 25.996014][ T311] FAULT_INJECTION: forcing a failure. [ 25.996014][ T311] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 26.009154][ T311] CPU: 0 PID: 311 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 26.019188][ T311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 26.029088][ T311] Call Trace: [ 26.032215][ T311] dump_stack_lvl+0x1e2/0x24b [ 26.036724][ T311] ? bfq_pos_tree_add_move+0x43b/0x43b [ 26.042020][ T311] dump_stack+0x15/0x17 [ 26.046015][ T311] should_fail+0x3c6/0x510 [ 26.050268][ T311] should_fail_alloc_page+0x52/0x60 [ 26.055296][ T311] __alloc_pages_nodemask+0x1b3/0xaf0 [ 26.060508][ T311] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 26.065897][ T311] ? __kasan_check_write+0x14/0x20 [ 26.070834][ T311] ? _raw_spin_lock+0xa4/0x1b0 [ 26.075435][ T311] __get_free_pages+0xe/0x30 [ 26.079861][ T311] selinux_genfs_get_sid+0x56/0x2a0 [ 26.084895][ T311] ? lockref_get+0xb4/0x110 [ 26.089237][ T311] inode_doinit_with_dentry+0x86f/0x1050 [ 26.094711][ T311] ? sb_finish_set_opts+0x7a0/0x7a0 [ 26.099748][ T311] ? current_time+0x1af/0x2f0 [ 26.104252][ T311] selinux_d_instantiate+0x27/0x40 [ 26.109205][ T311] security_d_instantiate+0x9f/0x100 [ 26.114321][ T311] d_instantiate+0x55/0x90 [ 26.118579][ T311] __debugfs_create_file+0x2e6/0x4c0 [ 26.123697][ T311] debugfs_create_file+0x4a/0x60 [ 26.128468][ T311] bdi_register_va+0x2a6/0x610 [ 26.133065][ T311] bdi_register+0xd1/0x120 [ 26.137316][ T311] ? vsnprintf+0x1e1/0x1c70 [ 26.141669][ T311] ? __device_add_disk+0x552/0x11a0 [ 26.146694][ T311] ? bdi_register_va+0x610/0x610 [ 26.151477][ T311] ? __kasan_check_read+0x11/0x20 [ 26.156500][ T311] ? blk_alloc_devt+0xd7/0x330 [ 26.161101][ T311] __device_add_disk+0x5de/0x11a0 [ 26.165963][ T311] ? device_add_disk+0x40/0x40 [ 26.170565][ T311] ? vsprintf+0x40/0x40 [ 26.174554][ T311] ? device_initialize+0x1e1/0x420 [ 26.179501][ T311] device_add_disk+0x2a/0x40 [ 26.183935][ T311] loop_add+0x580/0x750 [ 26.187929][ T311] loop_control_ioctl+0x448/0x620 [ 26.192780][ T311] ? loop_remove+0xb0/0xb0 [ 26.197033][ T311] ? _raw_spin_unlock_irq+0x4e/0x70 [ 26.202065][ T311] ? ptrace_notify+0x24c/0x350 [ 26.206666][ T311] ? do_notify_parent+0xa10/0xa10 [ 26.211535][ T311] ? security_file_ioctl+0x84/0xb0 [ 26.216474][ T311] ? loop_remove+0xb0/0xb0 [ 26.220823][ T311] __se_sys_ioctl+0x114/0x190 [ 26.225333][ T311] __x64_sys_ioctl+0x7b/0x90 [ 26.229761][ T311] do_syscall_64+0x34/0x70 [ 26.234018][ T311] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 26.239754][ T311] RIP: 0033:0x7f4305d14d39 [ 26.244001][ T311] 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 [ 26.263437][ T311] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 26.271681][ T311] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 26.279489][ T311] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 26.287304][ T311] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 311] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 311] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 311] exit_group(0) = ? [pid 311] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=311, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 313 ./strace-static-x86_64: Process 313 attached [pid 313] set_robust_list(0x5555572ea660, 24) = 0 [pid 313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 313] setpgid(0, 0) = 0 [pid 313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 313] write(3, "1000", 4) = 4 [pid 313] close(3) = 0 [pid 313] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 313] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 313] write(4, "76", 2) = 2 [ 26.295114][ T311] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 26.302924][ T311] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 26.355542][ T313] FAULT_INJECTION: forcing a failure. [ 26.355542][ T313] name failslab, interval 1, probability 0, space 0, times 0 [ 26.367968][ T313] CPU: 1 PID: 313 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 26.378001][ T313] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 26.387897][ T313] Call Trace: [ 26.391031][ T313] dump_stack_lvl+0x1e2/0x24b [ 26.395538][ T313] ? panic+0x80b/0x80b [ 26.399452][ T313] ? bfq_pos_tree_add_move+0x43b/0x43b [ 26.404753][ T313] dump_stack+0x15/0x17 [ 26.408730][ T313] should_fail+0x3c6/0x510 [ 26.412984][ T313] ? security_inode_alloc+0x29/0x120 [ 26.418108][ T313] __should_failslab+0xa4/0xe0 [ 26.422705][ T313] should_failslab+0x9/0x20 [ 26.427043][ T313] kmem_cache_alloc+0x3d/0x2e0 [ 26.431645][ T313] ? slab_post_alloc_hook+0x61/0x2f0 [ 26.436765][ T313] security_inode_alloc+0x29/0x120 [ 26.441712][ T313] inode_init_always+0x767/0x9f0 [ 26.446498][ T313] new_inode_pseudo+0x93/0x220 [ 26.451095][ T313] new_inode+0x28/0x1c0 [ 26.455076][ T313] ? start_creating+0x1d4/0x2f0 [ 26.459853][ T313] __debugfs_create_file+0x14d/0x4c0 [ 26.464975][ T313] ? up_write+0x59/0x120 [ 26.469055][ T313] debugfs_create_file+0x4a/0x60 [ 26.473825][ T313] bdi_register_va+0x2a6/0x610 [ 26.478425][ T313] bdi_register+0xd1/0x120 [ 26.482685][ T313] ? vsnprintf+0x1e1/0x1c70 [ 26.487019][ T313] ? __device_add_disk+0x552/0x11a0 [ 26.492058][ T313] ? bdi_register_va+0x610/0x610 [ 26.496861][ T313] ? __kasan_check_read+0x11/0x20 [ 26.501689][ T313] ? blk_alloc_devt+0xd7/0x330 [ 26.506288][ T313] __device_add_disk+0x5de/0x11a0 [ 26.511148][ T313] ? device_add_disk+0x40/0x40 [ 26.515743][ T313] ? vsprintf+0x40/0x40 [ 26.519739][ T313] ? device_initialize+0x1e1/0x420 [ 26.524687][ T313] device_add_disk+0x2a/0x40 [ 26.529112][ T313] loop_add+0x580/0x750 [ 26.533120][ T313] loop_control_ioctl+0x448/0x620 [ 26.537974][ T313] ? loop_remove+0xb0/0xb0 [ 26.542337][ T313] ? _raw_spin_unlock_irq+0x4e/0x70 [ 26.547423][ T313] ? ptrace_notify+0x24c/0x350 [ 26.551971][ T313] ? do_notify_parent+0xa10/0xa10 [ 26.556818][ T313] ? security_file_ioctl+0x84/0xb0 [ 26.561772][ T313] ? loop_remove+0xb0/0xb0 [ 26.566026][ T313] __se_sys_ioctl+0x114/0x190 [ 26.570532][ T313] __x64_sys_ioctl+0x7b/0x90 [ 26.574960][ T313] do_syscall_64+0x34/0x70 [ 26.579214][ T313] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 26.584938][ T313] RIP: 0033:0x7f4305d14d39 [ 26.589191][ T313] 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 [ 26.608722][ T313] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 26.616965][ T313] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 26.624774][ T313] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 26.632590][ T313] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 26.640400][ T313] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 26.648298][ T313] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 313] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 313] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 313] exit_group(0) = ? [pid 313] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=313, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 314 ./strace-static-x86_64: Process 314 attached [pid 314] set_robust_list(0x5555572ea660, 24) = 0 [pid 314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 314] setpgid(0, 0) = 0 [pid 314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 314] write(3, "1000", 4) = 4 [pid 314] close(3) = 0 [pid 314] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 314] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 314] write(4, "76", 2) = 2 [pid 314] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 314] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 314] exit_group(0) = ? [pid 314] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=314, 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=0x5555572ea650) = 315 ./strace-static-x86_64: Process 315 attached [pid 315] set_robust_list(0x5555572ea660, 24) = 0 [pid 315] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 315] setpgid(0, 0) = 0 [pid 315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 315] write(3, "1000", 4) = 4 [pid 315] close(3) = 0 [pid 315] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 315] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 315] write(4, "76", 2) = 2 [ 26.656214][ T313] debugfs: out of free dentries, can not create file 'stats' [ 26.714554][ T315] FAULT_INJECTION: forcing a failure. [ 26.714554][ T315] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 26.727618][ T315] CPU: 1 PID: 315 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 26.737633][ T315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 26.747604][ T315] Call Trace: [ 26.750738][ T315] dump_stack_lvl+0x1e2/0x24b [ 26.755243][ T315] ? bfq_pos_tree_add_move+0x43b/0x43b [ 26.760541][ T315] dump_stack+0x15/0x17 [ 26.764530][ T315] should_fail+0x3c6/0x510 [ 26.768783][ T315] should_fail_alloc_page+0x52/0x60 [ 26.773818][ T315] __alloc_pages_nodemask+0x1b3/0xaf0 [ 26.779026][ T315] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 26.784406][ T315] ? __kasan_check_write+0x14/0x20 [ 26.789354][ T315] ? _raw_spin_lock+0xa4/0x1b0 [ 26.793968][ T315] __get_free_pages+0xe/0x30 [ 26.798395][ T315] selinux_genfs_get_sid+0x56/0x2a0 [ 26.803416][ T315] ? lockref_get+0xb4/0x110 [ 26.807756][ T315] inode_doinit_with_dentry+0x86f/0x1050 [ 26.813239][ T315] ? sb_finish_set_opts+0x7a0/0x7a0 [ 26.818263][ T315] ? current_time+0x1af/0x2f0 [ 26.822853][ T315] selinux_d_instantiate+0x27/0x40 [ 26.827819][ T315] security_d_instantiate+0x9f/0x100 [ 26.832923][ T315] d_instantiate+0x55/0x90 [ 26.837199][ T315] __debugfs_create_file+0x2e6/0x4c0 [ 26.842305][ T315] debugfs_create_file+0x4a/0x60 [ 26.847082][ T315] bdi_register_va+0x2a6/0x610 [ 26.851672][ T315] bdi_register+0xd1/0x120 [ 26.855941][ T315] ? vsnprintf+0x1e1/0x1c70 [ 26.860280][ T315] ? __device_add_disk+0x552/0x11a0 [ 26.865304][ T315] ? bdi_register_va+0x610/0x610 [ 26.870172][ T315] ? __kasan_check_read+0x11/0x20 [ 26.875023][ T315] ? blk_alloc_devt+0xd7/0x330 [ 26.879636][ T315] __device_add_disk+0x5de/0x11a0 [ 26.884484][ T315] ? device_add_disk+0x40/0x40 [ 26.889085][ T315] ? vsprintf+0x40/0x40 [ 26.893077][ T315] ? device_initialize+0x1e1/0x420 [ 26.898023][ T315] device_add_disk+0x2a/0x40 [ 26.902450][ T315] loop_add+0x580/0x750 [ 26.906480][ T315] loop_control_ioctl+0x448/0x620 [ 26.911303][ T315] ? loop_remove+0xb0/0xb0 [ 26.915555][ T315] ? _raw_spin_unlock_irq+0x4e/0x70 [ 26.920592][ T315] ? ptrace_notify+0x24c/0x350 [ 26.925191][ T315] ? do_notify_parent+0xa10/0xa10 [ 26.930052][ T315] ? security_file_ioctl+0x84/0xb0 [ 26.934995][ T315] ? loop_remove+0xb0/0xb0 [ 26.939258][ T315] __se_sys_ioctl+0x114/0x190 [ 26.943767][ T315] __x64_sys_ioctl+0x7b/0x90 [ 26.948195][ T315] do_syscall_64+0x34/0x70 [ 26.952448][ T315] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 26.958174][ T315] RIP: 0033:0x7f4305d14d39 [ 26.962437][ T315] 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 [ 26.981868][ T315] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 26.990111][ T315] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 26.997921][ T315] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 27.005731][ T315] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 315] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 315] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 315] exit_group(0) = ? [pid 315] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=315, 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 316 attached , child_tidptr=0x5555572ea650) = 316 [pid 316] set_robust_list(0x5555572ea660, 24) = 0 [pid 316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 316] setpgid(0, 0) = 0 [pid 316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 316] write(3, "1000", 4) = 4 [pid 316] close(3) = 0 [pid 316] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 316] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 316] write(4, "76", 2) = 2 [ 27.013543][ T315] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 27.021356][ T315] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 27.071560][ T316] FAULT_INJECTION: forcing a failure. [ 27.071560][ T316] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 27.084621][ T316] CPU: 0 PID: 316 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 27.094634][ T316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 27.104530][ T316] Call Trace: [ 27.107659][ T316] dump_stack_lvl+0x1e2/0x24b [ 27.112168][ T316] ? bfq_pos_tree_add_move+0x43b/0x43b [ 27.117465][ T316] dump_stack+0x15/0x17 [ 27.121454][ T316] should_fail+0x3c6/0x510 [ 27.125711][ T316] should_fail_alloc_page+0x52/0x60 [ 27.130744][ T316] __alloc_pages_nodemask+0x1b3/0xaf0 [ 27.135950][ T316] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 27.141462][ T316] ? __kasan_check_write+0x14/0x20 [ 27.146403][ T316] ? _raw_spin_lock+0xa4/0x1b0 [ 27.150998][ T316] __get_free_pages+0xe/0x30 [ 27.155424][ T316] selinux_genfs_get_sid+0x56/0x2a0 [ 27.160460][ T316] ? lockref_get+0xb4/0x110 [ 27.164796][ T316] inode_doinit_with_dentry+0x86f/0x1050 [ 27.170272][ T316] ? sb_finish_set_opts+0x7a0/0x7a0 [ 27.175319][ T316] ? current_time+0x1af/0x2f0 [ 27.179817][ T316] selinux_d_instantiate+0x27/0x40 [ 27.184759][ T316] security_d_instantiate+0x9f/0x100 [ 27.189898][ T316] d_instantiate+0x55/0x90 [ 27.194139][ T316] __debugfs_create_file+0x2e6/0x4c0 [ 27.199266][ T316] debugfs_create_file+0x4a/0x60 [ 27.204116][ T316] bdi_register_va+0x2a6/0x610 [ 27.208717][ T316] bdi_register+0xd1/0x120 [ 27.212975][ T316] ? vsnprintf+0x1e1/0x1c70 [ 27.217311][ T316] ? __device_add_disk+0x552/0x11a0 [ 27.222348][ T316] ? bdi_register_va+0x610/0x610 [ 27.227245][ T316] ? __kasan_check_read+0x11/0x20 [ 27.232098][ T316] ? blk_alloc_devt+0xd7/0x330 [ 27.236702][ T316] __device_add_disk+0x5de/0x11a0 [ 27.241571][ T316] ? device_add_disk+0x40/0x40 [ 27.246146][ T316] ? vsprintf+0x40/0x40 [ 27.250142][ T316] ? device_initialize+0x1e1/0x420 [ 27.255092][ T316] device_add_disk+0x2a/0x40 [ 27.259515][ T316] loop_add+0x580/0x750 [ 27.263504][ T316] loop_control_ioctl+0x448/0x620 [ 27.268362][ T316] ? loop_remove+0xb0/0xb0 [ 27.272615][ T316] ? _raw_spin_unlock_irq+0x4e/0x70 [ 27.277652][ T316] ? ptrace_notify+0x24c/0x350 [ 27.282253][ T316] ? do_notify_parent+0xa10/0xa10 [ 27.287113][ T316] ? security_file_ioctl+0x84/0xb0 [ 27.292059][ T316] ? loop_remove+0xb0/0xb0 [ 27.296312][ T316] __se_sys_ioctl+0x114/0x190 [ 27.300827][ T316] __x64_sys_ioctl+0x7b/0x90 [ 27.305260][ T316] do_syscall_64+0x34/0x70 [ 27.309504][ T316] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 27.315232][ T316] RIP: 0033:0x7f4305d14d39 [ 27.319483][ T316] 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 [ 27.338935][ T316] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 27.347170][ T316] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 27.354985][ T316] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 27.362793][ T316] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 316] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 316] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 316] exit_group(0) = ? [pid 316] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=316, 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=0x5555572ea650) = 318 ./strace-static-x86_64: Process 318 attached [pid 318] set_robust_list(0x5555572ea660, 24) = 0 [pid 318] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 318] setpgid(0, 0) = 0 [pid 318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 318] write(3, "1000", 4) = 4 [pid 318] close(3) = 0 [pid 318] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 318] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 318] write(4, "76", 2) = 2 [pid 318] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [ 27.370605][ T316] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 27.378419][ T316] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 318] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 318] exit_group(0) = ? [pid 318] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=318, 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=0x5555572ea650) = 319 ./strace-static-x86_64: Process 319 attached [pid 319] set_robust_list(0x5555572ea660, 24) = 0 [pid 319] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 319] setpgid(0, 0) = 0 [pid 319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 319] write(3, "1000", 4) = 4 [pid 319] close(3) = 0 [pid 319] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 319] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 319] write(4, "76", 2) = 2 [ 27.453293][ T319] FAULT_INJECTION: forcing a failure. [ 27.453293][ T319] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 27.466335][ T319] CPU: 0 PID: 319 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 27.476367][ T319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 27.486259][ T319] Call Trace: [ 27.489405][ T319] dump_stack_lvl+0x1e2/0x24b [ 27.493901][ T319] ? bfq_pos_tree_add_move+0x43b/0x43b [ 27.499198][ T319] dump_stack+0x15/0x17 [ 27.503187][ T319] should_fail+0x3c6/0x510 [ 27.507441][ T319] should_fail_alloc_page+0x52/0x60 [ 27.512477][ T319] __alloc_pages_nodemask+0x1b3/0xaf0 [ 27.517688][ T319] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 27.523066][ T319] ? __kasan_check_write+0x14/0x20 [ 27.528008][ T319] ? _raw_spin_lock+0xa4/0x1b0 [ 27.532619][ T319] __get_free_pages+0xe/0x30 [ 27.537037][ T319] selinux_genfs_get_sid+0x56/0x2a0 [ 27.542080][ T319] ? lockref_get+0xb4/0x110 [ 27.546411][ T319] inode_doinit_with_dentry+0x86f/0x1050 [ 27.551883][ T319] ? sb_finish_set_opts+0x7a0/0x7a0 [ 27.556915][ T319] ? current_time+0x1af/0x2f0 [ 27.561441][ T319] selinux_d_instantiate+0x27/0x40 [ 27.566376][ T319] security_d_instantiate+0x9f/0x100 [ 27.571499][ T319] d_instantiate+0x55/0x90 [ 27.575748][ T319] __debugfs_create_file+0x2e6/0x4c0 [ 27.580873][ T319] debugfs_create_file+0x4a/0x60 [ 27.585641][ T319] bdi_register_va+0x2a6/0x610 [ 27.590242][ T319] bdi_register+0xd1/0x120 [ 27.594500][ T319] ? vsnprintf+0x1e1/0x1c70 [ 27.598832][ T319] ? __device_add_disk+0x552/0x11a0 [ 27.603866][ T319] ? bdi_register_va+0x610/0x610 [ 27.608642][ T319] ? __kasan_check_read+0x11/0x20 [ 27.613507][ T319] ? blk_alloc_devt+0xd7/0x330 [ 27.618109][ T319] __device_add_disk+0x5de/0x11a0 [ 27.622962][ T319] ? device_add_disk+0x40/0x40 [ 27.627567][ T319] ? vsprintf+0x40/0x40 [ 27.631555][ T319] ? device_initialize+0x1e1/0x420 [ 27.636500][ T319] device_add_disk+0x2a/0x40 [ 27.640928][ T319] loop_add+0x580/0x750 [ 27.644919][ T319] loop_control_ioctl+0x448/0x620 [ 27.649778][ T319] ? loop_remove+0xb0/0xb0 [ 27.654032][ T319] ? _raw_spin_unlock_irq+0x4e/0x70 [ 27.659077][ T319] ? ptrace_notify+0x24c/0x350 [ 27.663675][ T319] ? do_notify_parent+0xa10/0xa10 [ 27.668527][ T319] ? security_file_ioctl+0x84/0xb0 [ 27.673476][ T319] ? loop_remove+0xb0/0xb0 [ 27.677746][ T319] __se_sys_ioctl+0x114/0x190 [ 27.682240][ T319] __x64_sys_ioctl+0x7b/0x90 [ 27.686680][ T319] do_syscall_64+0x34/0x70 [ 27.690922][ T319] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 27.696651][ T319] RIP: 0033:0x7f4305d14d39 [ 27.700904][ T319] 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 [ 27.720517][ T319] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 27.728760][ T319] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 27.736744][ T319] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 27.744557][ T319] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 319] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 319] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 319] exit_group(0) = ? [pid 319] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=319, 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=0x5555572ea650) = 320 ./strace-static-x86_64: Process 320 attached [pid 320] set_robust_list(0x5555572ea660, 24) = 0 [pid 320] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 320] setpgid(0, 0) = 0 [pid 320] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 320] write(3, "1000", 4) = 4 [pid 320] close(3) = 0 [pid 320] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 320] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 320] write(4, "76", 2) = 2 [ 27.752379][ T319] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 27.760187][ T319] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 27.823232][ T320] FAULT_INJECTION: forcing a failure. [ 27.823232][ T320] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 27.836277][ T320] CPU: 0 PID: 320 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 27.846307][ T320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 27.856200][ T320] Call Trace: [ 27.859424][ T320] dump_stack_lvl+0x1e2/0x24b [ 27.863930][ T320] ? bfq_pos_tree_add_move+0x43b/0x43b [ 27.869259][ T320] dump_stack+0x15/0x17 [ 27.873214][ T320] should_fail+0x3c6/0x510 [ 27.877487][ T320] should_fail_alloc_page+0x52/0x60 [ 27.882503][ T320] __alloc_pages_nodemask+0x1b3/0xaf0 [ 27.887712][ T320] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 27.893196][ T320] ? __kasan_check_write+0x14/0x20 [ 27.898140][ T320] ? _raw_spin_lock+0xa4/0x1b0 [ 27.902735][ T320] __get_free_pages+0xe/0x30 [ 27.907160][ T320] selinux_genfs_get_sid+0x56/0x2a0 [ 27.912196][ T320] ? lockref_get+0xb4/0x110 [ 27.916534][ T320] inode_doinit_with_dentry+0x86f/0x1050 [ 27.922092][ T320] ? sb_finish_set_opts+0x7a0/0x7a0 [ 27.927125][ T320] ? current_time+0x1af/0x2f0 [ 27.931636][ T320] selinux_d_instantiate+0x27/0x40 [ 27.936708][ T320] security_d_instantiate+0x9f/0x100 [ 27.941836][ T320] d_instantiate+0x55/0x90 [ 27.946073][ T320] __debugfs_create_file+0x2e6/0x4c0 [ 27.951195][ T320] debugfs_create_file+0x4a/0x60 [ 27.956062][ T320] bdi_register_va+0x2a6/0x610 [ 27.960664][ T320] bdi_register+0xd1/0x120 [ 27.964902][ T320] ? vsnprintf+0x1e1/0x1c70 [ 27.969242][ T320] ? __device_add_disk+0x552/0x11a0 [ 27.974366][ T320] ? bdi_register_va+0x610/0x610 [ 27.979150][ T320] ? __kasan_check_read+0x11/0x20 [ 27.983999][ T320] ? blk_alloc_devt+0xd7/0x330 [ 27.988598][ T320] __device_add_disk+0x5de/0x11a0 [ 27.993467][ T320] ? device_add_disk+0x40/0x40 [ 27.998066][ T320] ? vsprintf+0x40/0x40 [ 28.002054][ T320] ? device_initialize+0x1e1/0x420 [ 28.007007][ T320] device_add_disk+0x2a/0x40 [ 28.011423][ T320] loop_add+0x580/0x750 [ 28.015427][ T320] loop_control_ioctl+0x448/0x620 [ 28.020278][ T320] ? loop_remove+0xb0/0xb0 [ 28.024528][ T320] ? _raw_spin_unlock_irq+0x4e/0x70 [ 28.029571][ T320] ? ptrace_notify+0x24c/0x350 [ 28.034163][ T320] ? do_notify_parent+0xa10/0xa10 [ 28.039027][ T320] ? security_file_ioctl+0x84/0xb0 [ 28.043972][ T320] ? loop_remove+0xb0/0xb0 [ 28.048228][ T320] __se_sys_ioctl+0x114/0x190 [ 28.052736][ T320] __x64_sys_ioctl+0x7b/0x90 [ 28.057175][ T320] do_syscall_64+0x34/0x70 [ 28.061855][ T320] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 28.067585][ T320] RIP: 0033:0x7f4305d14d39 [ 28.071831][ T320] 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 [ 28.091299][ T320] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 28.099520][ T320] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 28.107333][ T320] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 28.115228][ T320] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 320] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 320] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 320] exit_group(0) = ? [pid 320] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=320, 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 321 attached , child_tidptr=0x5555572ea650) = 321 [pid 321] set_robust_list(0x5555572ea660, 24) = 0 [pid 321] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 321] setpgid(0, 0) = 0 [pid 321] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 321] write(3, "1000", 4) = 4 [pid 321] close(3) = 0 [pid 321] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 321] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 321] write(4, "76", 2) = 2 [pid 321] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 321] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 321] exit_group(0) = ? [pid 321] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=321, 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=0x5555572ea650) = 322 ./strace-static-x86_64: Process 322 attached [pid 322] set_robust_list(0x5555572ea660, 24) = 0 [pid 322] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 322] setpgid(0, 0) = 0 [pid 322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 322] write(3, "1000", 4) = 4 [pid 322] close(3) = 0 [pid 322] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 322] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 322] write(4, "76", 2) = 2 [ 28.123042][ T320] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 28.130849][ T320] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 28.173799][ T322] FAULT_INJECTION: forcing a failure. [ 28.173799][ T322] name failslab, interval 1, probability 0, space 0, times 0 [ 28.186396][ T322] CPU: 0 PID: 322 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 28.196392][ T322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 28.206287][ T322] Call Trace: [ 28.209418][ T322] dump_stack_lvl+0x1e2/0x24b [ 28.213924][ T322] ? panic+0x80b/0x80b [ 28.217840][ T322] ? bfq_pos_tree_add_move+0x43b/0x43b [ 28.223127][ T322] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 28.227985][ T322] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 28.233026][ T322] dump_stack+0x15/0x17 [ 28.237011][ T322] should_fail+0x3c6/0x510 [ 28.241323][ T322] ? kobj_map+0x64/0x670 [ 28.245353][ T322] __should_failslab+0xa4/0xe0 [ 28.249954][ T322] should_failslab+0x9/0x20 [ 28.254386][ T322] __kmalloc+0x60/0x330 [ 28.258365][ T322] ? __device_add_disk+0x552/0x11a0 [ 28.263525][ T322] kobj_map+0x64/0x670 [ 28.267423][ T322] ? kobject_get+0xd1/0x120 [ 28.271760][ T322] ? exact_match+0x20/0x20 [ 28.276018][ T322] ? bdev_check_media_change+0x4d0/0x4d0 [ 28.281480][ T322] __device_add_disk+0x67b/0x11a0 [ 28.286351][ T322] ? device_add_disk+0x40/0x40 [ 28.290946][ T322] ? vsprintf+0x40/0x40 [ 28.294929][ T322] ? device_initialize+0x1e1/0x420 [ 28.299880][ T322] device_add_disk+0x2a/0x40 [ 28.304304][ T322] loop_add+0x580/0x750 [ 28.308299][ T322] loop_control_ioctl+0x448/0x620 [ 28.313163][ T322] ? loop_remove+0xb0/0xb0 [ 28.317424][ T322] ? _raw_spin_unlock_irq+0x4e/0x70 [ 28.322460][ T322] ? ptrace_notify+0x24c/0x350 [ 28.327050][ T322] ? do_notify_parent+0xa10/0xa10 [ 28.331921][ T322] ? security_file_ioctl+0x84/0xb0 [ 28.336855][ T322] ? loop_remove+0xb0/0xb0 [ 28.341109][ T322] __se_sys_ioctl+0x114/0x190 [ 28.345626][ T322] __x64_sys_ioctl+0x7b/0x90 [ 28.350055][ T322] do_syscall_64+0x34/0x70 [ 28.354302][ T322] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 28.360026][ T322] RIP: 0033:0x7f4305d14d39 [pid 322] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 322] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [ 28.364276][ T322] 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 [ 28.383726][ T322] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 28.391967][ T322] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 28.399776][ T322] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 28.407585][ T322] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 28.415399][ T322] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [pid 322] exit_group(0) = ? [pid 322] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=322, 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=0x5555572ea650) = 324 ./strace-static-x86_64: Process 324 attached [pid 324] set_robust_list(0x5555572ea660, 24) = 0 [pid 324] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 324] setpgid(0, 0) = 0 [pid 324] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 324] write(3, "1000", 4) = 4 [pid 324] close(3) = 0 [pid 324] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 324] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 324] write(4, "76", 2) = 2 [pid 324] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 324] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 324] exit_group(0) = ? [pid 324] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=324, 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=0x5555572ea650) = 325 ./strace-static-x86_64: Process 325 attached [pid 325] set_robust_list(0x5555572ea660, 24) = 0 [pid 325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 325] setpgid(0, 0) = 0 [pid 325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 325] write(3, "1000", 4) = 4 [pid 325] close(3) = 0 [pid 325] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 325] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 325] write(4, "76", 2) = 2 [ 28.423223][ T322] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 28.484557][ T325] FAULT_INJECTION: forcing a failure. [ 28.484557][ T325] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 28.497638][ T325] CPU: 1 PID: 325 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 28.507630][ T325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 28.517525][ T325] Call Trace: [ 28.520659][ T325] dump_stack_lvl+0x1e2/0x24b [ 28.525168][ T325] ? bfq_pos_tree_add_move+0x43b/0x43b [ 28.530467][ T325] dump_stack+0x15/0x17 [ 28.534449][ T325] should_fail+0x3c6/0x510 [ 28.538720][ T325] should_fail_alloc_page+0x52/0x60 [ 28.543738][ T325] __alloc_pages_nodemask+0x1b3/0xaf0 [ 28.548947][ T325] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 28.554331][ T325] ? __kasan_check_write+0x14/0x20 [ 28.559279][ T325] ? _raw_spin_lock+0xa4/0x1b0 [ 28.563878][ T325] __get_free_pages+0xe/0x30 [ 28.568302][ T325] selinux_genfs_get_sid+0x56/0x2a0 [ 28.573337][ T325] ? lockref_get+0xb4/0x110 [ 28.577677][ T325] inode_doinit_with_dentry+0x86f/0x1050 [ 28.583154][ T325] ? sb_finish_set_opts+0x7a0/0x7a0 [ 28.588195][ T325] ? current_time+0x1af/0x2f0 [ 28.592691][ T325] selinux_d_instantiate+0x27/0x40 [ 28.597639][ T325] security_d_instantiate+0x9f/0x100 [ 28.602763][ T325] d_instantiate+0x55/0x90 [ 28.607100][ T325] __debugfs_create_file+0x2e6/0x4c0 [ 28.612222][ T325] debugfs_create_file+0x4a/0x60 [ 28.617003][ T325] bdi_register_va+0x2a6/0x610 [ 28.621605][ T325] bdi_register+0xd1/0x120 [ 28.625849][ T325] ? vsnprintf+0x1e1/0x1c70 [ 28.630191][ T325] ? __device_add_disk+0x552/0x11a0 [ 28.635218][ T325] ? bdi_register_va+0x610/0x610 [ 28.639998][ T325] ? __kasan_check_read+0x11/0x20 [ 28.644857][ T325] ? blk_alloc_devt+0xd7/0x330 [ 28.649469][ T325] __device_add_disk+0x5de/0x11a0 [ 28.654319][ T325] ? device_add_disk+0x40/0x40 [ 28.658914][ T325] ? vsprintf+0x40/0x40 [ 28.662906][ T325] ? device_initialize+0x1e1/0x420 [ 28.667858][ T325] device_add_disk+0x2a/0x40 [ 28.672288][ T325] loop_add+0x580/0x750 [ 28.676274][ T325] loop_control_ioctl+0x448/0x620 [ 28.681134][ T325] ? loop_remove+0xb0/0xb0 [ 28.685385][ T325] ? _raw_spin_unlock_irq+0x4e/0x70 [ 28.690436][ T325] ? ptrace_notify+0x24c/0x350 [ 28.695020][ T325] ? do_notify_parent+0xa10/0xa10 [ 28.699884][ T325] ? security_file_ioctl+0x84/0xb0 [ 28.704828][ T325] ? loop_remove+0xb0/0xb0 [ 28.709170][ T325] __se_sys_ioctl+0x114/0x190 [ 28.713693][ T325] __x64_sys_ioctl+0x7b/0x90 [ 28.718125][ T325] do_syscall_64+0x34/0x70 [ 28.722366][ T325] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 28.728092][ T325] RIP: 0033:0x7f4305d14d39 [ 28.732340][ T325] 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 [ 28.751785][ T325] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 28.760028][ T325] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 28.767847][ T325] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 28.775650][ T325] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 325] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 325] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 325] exit_group(0) = ? [pid 325] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=325, 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 326 attached , child_tidptr=0x5555572ea650) = 326 [ 28.783463][ T325] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 28.791274][ T325] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 326] set_robust_list(0x5555572ea660, 24) = 0 [pid 326] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 326] setpgid(0, 0) = 0 [pid 326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 326] write(3, "1000", 4) = 4 [pid 326] close(3) = 0 [pid 326] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 326] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 326] write(4, "76", 2) = 2 [ 28.843915][ T326] FAULT_INJECTION: forcing a failure. [ 28.843915][ T326] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 28.856987][ T326] CPU: 0 PID: 326 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 28.866986][ T326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 28.876891][ T326] Call Trace: [ 28.880020][ T326] dump_stack_lvl+0x1e2/0x24b [ 28.884522][ T326] ? bfq_pos_tree_add_move+0x43b/0x43b [ 28.889817][ T326] dump_stack+0x15/0x17 [ 28.893805][ T326] should_fail+0x3c6/0x510 [ 28.898067][ T326] should_fail_alloc_page+0x52/0x60 [ 28.903192][ T326] __alloc_pages_nodemask+0x1b3/0xaf0 [ 28.908392][ T326] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 28.913770][ T326] ? __kasan_check_write+0x14/0x20 [ 28.918716][ T326] ? _raw_spin_lock+0xa4/0x1b0 [ 28.923318][ T326] __get_free_pages+0xe/0x30 [ 28.927744][ T326] selinux_genfs_get_sid+0x56/0x2a0 [ 28.932776][ T326] ? lockref_get+0xb4/0x110 [ 28.937118][ T326] inode_doinit_with_dentry+0x86f/0x1050 [ 28.942589][ T326] ? sb_finish_set_opts+0x7a0/0x7a0 [ 28.947618][ T326] ? current_time+0x1af/0x2f0 [ 28.952142][ T326] selinux_d_instantiate+0x27/0x40 [ 28.957075][ T326] security_d_instantiate+0x9f/0x100 [ 28.962197][ T326] d_instantiate+0x55/0x90 [ 28.966452][ T326] __debugfs_create_file+0x2e6/0x4c0 [ 28.971579][ T326] debugfs_create_file+0x4a/0x60 [ 28.976345][ T326] bdi_register_va+0x2a6/0x610 [ 28.980946][ T326] bdi_register+0xd1/0x120 [ 28.985285][ T326] ? vsnprintf+0x1e1/0x1c70 [ 28.989623][ T326] ? __device_add_disk+0x552/0x11a0 [ 28.994661][ T326] ? bdi_register_va+0x610/0x610 [ 28.999435][ T326] ? __kasan_check_read+0x11/0x20 [ 29.004293][ T326] ? blk_alloc_devt+0xd7/0x330 [ 29.008897][ T326] __device_add_disk+0x5de/0x11a0 [ 29.013755][ T326] ? device_add_disk+0x40/0x40 [ 29.018353][ T326] ? vsprintf+0x40/0x40 [ 29.022348][ T326] ? device_initialize+0x1e1/0x420 [ 29.027297][ T326] device_add_disk+0x2a/0x40 [ 29.031719][ T326] loop_add+0x580/0x750 [ 29.035711][ T326] loop_control_ioctl+0x448/0x620 [ 29.040572][ T326] ? loop_remove+0xb0/0xb0 [ 29.044825][ T326] ? _raw_spin_unlock_irq+0x4e/0x70 [ 29.049861][ T326] ? ptrace_notify+0x24c/0x350 [ 29.054458][ T326] ? do_notify_parent+0xa10/0xa10 [ 29.059321][ T326] ? security_file_ioctl+0x84/0xb0 [ 29.064267][ T326] ? loop_remove+0xb0/0xb0 [ 29.068520][ T326] __se_sys_ioctl+0x114/0x190 [ 29.073033][ T326] __x64_sys_ioctl+0x7b/0x90 [ 29.077462][ T326] do_syscall_64+0x34/0x70 [ 29.081713][ T326] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 29.087443][ T326] RIP: 0033:0x7f4305d14d39 [ 29.091698][ T326] 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 [ 29.111145][ T326] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 29.119383][ T326] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 29.127193][ T326] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 29.135004][ T326] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 326] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 326] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 326] exit_group(0) = ? [pid 326] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=326, 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=0x5555572ea650) = 327 ./strace-static-x86_64: Process 327 attached [pid 327] set_robust_list(0x5555572ea660, 24) = 0 [pid 327] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 327] setpgid(0, 0) = 0 [pid 327] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 327] write(3, "1000", 4) = 4 [pid 327] close(3) = 0 [pid 327] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 327] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 327] write(4, "76", 2) = 2 [pid 327] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 327] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 327] exit_group(0) = ? [pid 327] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=327, 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=0x5555572ea650) = 329 ./strace-static-x86_64: Process 329 attached [ 29.142813][ T326] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 29.150623][ T326] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 329] set_robust_list(0x5555572ea660, 24) = 0 [pid 329] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 329] setpgid(0, 0) = 0 [pid 329] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 329] write(3, "1000", 4) = 4 [pid 329] close(3) = 0 [pid 329] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 329] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 329] write(4, "76", 2) = 2 [ 29.190019][ T24] audit: type=1400 audit(1709393823.550:70): avc: denied { remove_name } for pid=76 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 29.205228][ T329] FAULT_INJECTION: forcing a failure. [ 29.205228][ T329] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 29.213276][ T24] audit: type=1400 audit(1709393823.550:71): avc: denied { rename } for pid=76 comm="syslogd" name="messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 29.225149][ T329] CPU: 1 PID: 329 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 29.256844][ T329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 29.266724][ T329] Call Trace: [ 29.269857][ T329] dump_stack_lvl+0x1e2/0x24b [ 29.274365][ T329] ? bfq_pos_tree_add_move+0x43b/0x43b [ 29.279658][ T329] dump_stack+0x15/0x17 [ 29.283649][ T329] should_fail+0x3c6/0x510 [ 29.287914][ T329] should_fail_alloc_page+0x52/0x60 [ 29.292941][ T329] __alloc_pages_nodemask+0x1b3/0xaf0 [ 29.298233][ T329] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 29.303616][ T329] ? __kasan_check_write+0x14/0x20 [ 29.308562][ T329] ? _raw_spin_lock+0xa4/0x1b0 [ 29.313171][ T329] __get_free_pages+0xe/0x30 [ 29.317587][ T329] selinux_genfs_get_sid+0x56/0x2a0 [ 29.322622][ T329] ? lockref_get+0xb4/0x110 [ 29.326965][ T329] inode_doinit_with_dentry+0x86f/0x1050 [ 29.332430][ T329] ? sb_finish_set_opts+0x7a0/0x7a0 [ 29.337465][ T329] ? current_time+0x1af/0x2f0 [ 29.341980][ T329] selinux_d_instantiate+0x27/0x40 [ 29.346922][ T329] security_d_instantiate+0x9f/0x100 [ 29.352057][ T329] d_instantiate+0x55/0x90 [ 29.356305][ T329] __debugfs_create_file+0x2e6/0x4c0 [ 29.361422][ T329] debugfs_create_file+0x4a/0x60 [ 29.366193][ T329] bdi_register_va+0x2a6/0x610 [ 29.370791][ T329] bdi_register+0xd1/0x120 [ 29.375042][ T329] ? vsnprintf+0x1e1/0x1c70 [ 29.379400][ T329] ? __device_add_disk+0x552/0x11a0 [ 29.384427][ T329] ? bdi_register_va+0x610/0x610 [ 29.389197][ T329] ? __kasan_check_read+0x11/0x20 [ 29.394142][ T329] ? blk_alloc_devt+0xd7/0x330 [ 29.398742][ T329] __device_add_disk+0x5de/0x11a0 [ 29.403601][ T329] ? device_add_disk+0x40/0x40 [ 29.408208][ T329] ? vsprintf+0x40/0x40 [ 29.412198][ T329] ? device_initialize+0x1e1/0x420 [ 29.417152][ T329] device_add_disk+0x2a/0x40 [ 29.421568][ T329] loop_add+0x580/0x750 [ 29.425560][ T329] loop_control_ioctl+0x448/0x620 [ 29.430418][ T329] ? loop_remove+0xb0/0xb0 [ 29.434678][ T329] ? _raw_spin_unlock_irq+0x4e/0x70 [ 29.439706][ T329] ? ptrace_notify+0x24c/0x350 [ 29.444305][ T329] ? do_notify_parent+0xa10/0xa10 [ 29.449183][ T329] ? security_file_ioctl+0x84/0xb0 [ 29.454113][ T329] ? loop_remove+0xb0/0xb0 [ 29.458367][ T329] __se_sys_ioctl+0x114/0x190 [ 29.462892][ T329] __x64_sys_ioctl+0x7b/0x90 [ 29.467313][ T329] do_syscall_64+0x34/0x70 [ 29.471562][ T329] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 29.477300][ T329] RIP: 0033:0x7f4305d14d39 [pid 329] ioctl(3, LOOP_CTL_ADD, 11) = 11 [ 29.481553][ T329] 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 [ 29.500989][ T329] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 29.509226][ T329] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 29.517042][ T329] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 29.524847][ T329] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 29.532661][ T329] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [pid 329] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 329] exit_group(0) = ? [pid 329] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=329, 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=0x5555572ea650) = 330 ./strace-static-x86_64: Process 330 attached [pid 330] set_robust_list(0x5555572ea660, 24) = 0 [pid 330] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 330] setpgid(0, 0) = 0 [pid 330] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 330] write(3, "1000", 4) = 4 [pid 330] close(3) = 0 [pid 330] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 330] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 330] write(4, "76", 2) = 2 [pid 330] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 330] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 330] exit_group(0) = ? [pid 330] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=330, 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=0x5555572ea650) = 331 ./strace-static-x86_64: Process 331 attached [pid 331] set_robust_list(0x5555572ea660, 24) = 0 [pid 331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 331] setpgid(0, 0) = 0 [pid 331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 331] write(3, "1000", 4) = 4 [pid 331] close(3) = 0 [pid 331] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 331] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 331] write(4, "76", 2) = 2 [ 29.540471][ T329] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 29.605572][ T331] FAULT_INJECTION: forcing a failure. [ 29.605572][ T331] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 29.618604][ T331] CPU: 1 PID: 331 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 29.628646][ T331] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 29.638535][ T331] Call Trace: [ 29.641670][ T331] dump_stack_lvl+0x1e2/0x24b [ 29.646265][ T331] ? bfq_pos_tree_add_move+0x43b/0x43b [ 29.651560][ T331] dump_stack+0x15/0x17 [ 29.655550][ T331] should_fail+0x3c6/0x510 [ 29.659805][ T331] should_fail_alloc_page+0x52/0x60 [ 29.664841][ T331] __alloc_pages_nodemask+0x1b3/0xaf0 [ 29.670053][ T331] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 29.675428][ T331] ? __kasan_check_write+0x14/0x20 [ 29.680375][ T331] ? _raw_spin_lock+0xa4/0x1b0 [ 29.684973][ T331] __get_free_pages+0xe/0x30 [ 29.689403][ T331] selinux_genfs_get_sid+0x56/0x2a0 [ 29.694435][ T331] ? lockref_get+0xb4/0x110 [ 29.698777][ T331] inode_doinit_with_dentry+0x86f/0x1050 [ 29.704245][ T331] ? sb_finish_set_opts+0x7a0/0x7a0 [ 29.709278][ T331] ? current_time+0x1af/0x2f0 [ 29.713798][ T331] selinux_d_instantiate+0x27/0x40 [ 29.718737][ T331] security_d_instantiate+0x9f/0x100 [ 29.723859][ T331] d_instantiate+0x55/0x90 [ 29.728112][ T331] __debugfs_create_file+0x2e6/0x4c0 [ 29.733233][ T331] debugfs_create_file+0x4a/0x60 [ 29.738009][ T331] bdi_register_va+0x2a6/0x610 [ 29.742607][ T331] bdi_register+0xd1/0x120 [ 29.746856][ T331] ? vsnprintf+0x1e1/0x1c70 [ 29.751197][ T331] ? __device_add_disk+0x552/0x11a0 [ 29.756231][ T331] ? bdi_register_va+0x610/0x610 [ 29.761094][ T331] ? __kasan_check_read+0x11/0x20 [ 29.765955][ T331] ? blk_alloc_devt+0xd7/0x330 [ 29.770550][ T331] __device_add_disk+0x5de/0x11a0 [ 29.775414][ T331] ? device_add_disk+0x40/0x40 [ 29.780024][ T331] ? vsprintf+0x40/0x40 [ 29.784014][ T331] ? device_initialize+0x1e1/0x420 [ 29.788953][ T331] device_add_disk+0x2a/0x40 [ 29.793386][ T331] loop_add+0x580/0x750 [ 29.797370][ T331] loop_control_ioctl+0x448/0x620 [ 29.802233][ T331] ? loop_remove+0xb0/0xb0 [ 29.806485][ T331] ? _raw_spin_unlock_irq+0x4e/0x70 [ 29.811519][ T331] ? ptrace_notify+0x24c/0x350 [ 29.816118][ T331] ? do_notify_parent+0xa10/0xa10 [ 29.820981][ T331] ? security_file_ioctl+0x84/0xb0 [ 29.825927][ T331] ? loop_remove+0xb0/0xb0 [ 29.830180][ T331] __se_sys_ioctl+0x114/0x190 [ 29.834693][ T331] __x64_sys_ioctl+0x7b/0x90 [ 29.839119][ T331] do_syscall_64+0x34/0x70 [ 29.843371][ T331] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 29.849099][ T331] RIP: 0033:0x7f4305d14d39 [ 29.853470][ T331] 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 [ 29.872917][ T331] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 29.881158][ T331] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 29.888967][ T331] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 29.896774][ T331] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 331] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 331] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 331] exit_group(0) = ? [pid 331] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=331, 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=0x5555572ea650) = 332 ./strace-static-x86_64: Process 332 attached [pid 332] set_robust_list(0x5555572ea660, 24) = 0 [pid 332] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 332] setpgid(0, 0) = 0 [pid 332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 332] write(3, "1000", 4) = 4 [pid 332] close(3) = 0 [pid 332] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 332] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 332] write(4, "76", 2) = 2 [pid 332] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 332] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 332] exit_group(0) = ? [pid 332] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=332, 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=0x5555572ea650) = 333 ./strace-static-x86_64: Process 333 attached [pid 333] set_robust_list(0x5555572ea660, 24) = 0 [pid 333] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 333] setpgid(0, 0) = 0 [pid 333] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 333] write(3, "1000", 4) = 4 [pid 333] close(3) = 0 [pid 333] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 333] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 333] write(4, "76", 2) = 2 [ 29.904590][ T331] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 29.912399][ T331] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 29.964048][ T333] FAULT_INJECTION: forcing a failure. [ 29.964048][ T333] name failslab, interval 1, probability 0, space 0, times 0 [ 29.976589][ T333] CPU: 1 PID: 333 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 29.986612][ T333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 29.996505][ T333] Call Trace: [ 29.999636][ T333] dump_stack_lvl+0x1e2/0x24b [ 30.004143][ T333] ? panic+0x80b/0x80b [ 30.008048][ T333] ? bfq_pos_tree_add_move+0x43b/0x43b [ 30.013355][ T333] dump_stack+0x15/0x17 [ 30.017335][ T333] should_fail+0x3c6/0x510 [ 30.021590][ T333] ? security_inode_alloc+0x29/0x120 [ 30.026713][ T333] __should_failslab+0xa4/0xe0 [ 30.031310][ T333] should_failslab+0x9/0x20 [ 30.035650][ T333] kmem_cache_alloc+0x3d/0x2e0 [ 30.040251][ T333] ? slab_post_alloc_hook+0x61/0x2f0 [ 30.045372][ T333] security_inode_alloc+0x29/0x120 [ 30.050321][ T333] inode_init_always+0x767/0x9f0 [ 30.055090][ T333] new_inode_pseudo+0x93/0x220 [ 30.059693][ T333] new_inode+0x28/0x1c0 [ 30.063730][ T333] ? start_creating+0x1d4/0x2f0 [ 30.068369][ T333] __debugfs_create_file+0x14d/0x4c0 [ 30.073492][ T333] ? up_write+0x59/0x120 [ 30.077571][ T333] debugfs_create_file+0x4a/0x60 [ 30.082344][ T333] bdi_register_va+0x2a6/0x610 [ 30.086947][ T333] bdi_register+0xd1/0x120 [ 30.091205][ T333] ? vsnprintf+0x1e1/0x1c70 [ 30.095539][ T333] ? __device_add_disk+0x552/0x11a0 [ 30.100580][ T333] ? bdi_register_va+0x610/0x610 [ 30.105362][ T333] ? __kasan_check_read+0x11/0x20 [ 30.110204][ T333] ? blk_alloc_devt+0xd7/0x330 [ 30.114803][ T333] __device_add_disk+0x5de/0x11a0 [ 30.119667][ T333] ? device_add_disk+0x40/0x40 [ 30.124267][ T333] ? vsprintf+0x40/0x40 [ 30.128260][ T333] ? device_initialize+0x1e1/0x420 [ 30.133207][ T333] device_add_disk+0x2a/0x40 [ 30.137634][ T333] loop_add+0x580/0x750 [ 30.141624][ T333] loop_control_ioctl+0x448/0x620 [ 30.146484][ T333] ? loop_remove+0xb0/0xb0 [ 30.150737][ T333] ? _raw_spin_unlock_irq+0x4e/0x70 [ 30.155772][ T333] ? ptrace_notify+0x24c/0x350 [ 30.160371][ T333] ? do_notify_parent+0xa10/0xa10 [ 30.165240][ T333] ? security_file_ioctl+0x84/0xb0 [ 30.170179][ T333] ? loop_remove+0xb0/0xb0 [ 30.174432][ T333] __se_sys_ioctl+0x114/0x190 [ 30.178948][ T333] __x64_sys_ioctl+0x7b/0x90 [ 30.183376][ T333] do_syscall_64+0x34/0x70 [ 30.187626][ T333] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 30.193353][ T333] RIP: 0033:0x7f4305d14d39 [pid 333] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 333] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [ 30.197607][ T333] 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 [ 30.217049][ T333] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 30.225292][ T333] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 30.233104][ T333] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 30.240913][ T333] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 30.248729][ T333] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 30.256541][ T333] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 333] exit_group(0) = ? [pid 333] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=333, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 335 attached , child_tidptr=0x5555572ea650) = 335 [pid 335] set_robust_list(0x5555572ea660, 24) = 0 [pid 335] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 335] setpgid(0, 0) = 0 [pid 335] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 335] write(3, "1000", 4) = 4 [pid 335] close(3) = 0 [pid 335] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 335] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 335] write(4, "76", 2) = 2 [pid 335] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 335] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 335] exit_group(0) = ? [pid 335] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=335, 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=0x5555572ea650) = 336 ./strace-static-x86_64: Process 336 attached [pid 336] set_robust_list(0x5555572ea660, 24) = 0 [pid 336] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 336] setpgid(0, 0) = 0 [pid 336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 336] write(3, "1000", 4) = 4 [pid 336] close(3) = 0 [pid 336] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 336] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 336] write(4, "76", 2) = 2 [ 30.264785][ T333] debugfs: out of free dentries, can not create file 'stats' [ 30.304723][ T336] FAULT_INJECTION: forcing a failure. [ 30.304723][ T336] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 30.317820][ T336] CPU: 0 PID: 336 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 30.327788][ T336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 30.337682][ T336] Call Trace: [ 30.340815][ T336] dump_stack_lvl+0x1e2/0x24b [ 30.345323][ T336] ? bfq_pos_tree_add_move+0x43b/0x43b [ 30.350629][ T336] dump_stack+0x15/0x17 [ 30.354609][ T336] should_fail+0x3c6/0x510 [ 30.358867][ T336] should_fail_alloc_page+0x52/0x60 [ 30.363898][ T336] __alloc_pages_nodemask+0x1b3/0xaf0 [ 30.369105][ T336] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 30.374490][ T336] ? __kasan_check_write+0x14/0x20 [ 30.379434][ T336] ? _raw_spin_lock+0xa4/0x1b0 [ 30.384033][ T336] __get_free_pages+0xe/0x30 [ 30.388472][ T336] selinux_genfs_get_sid+0x56/0x2a0 [ 30.393504][ T336] ? lockref_get+0xb4/0x110 [ 30.397834][ T336] inode_doinit_with_dentry+0x86f/0x1050 [ 30.403301][ T336] ? sb_finish_set_opts+0x7a0/0x7a0 [ 30.408342][ T336] ? current_time+0x1af/0x2f0 [ 30.412849][ T336] selinux_d_instantiate+0x27/0x40 [ 30.417795][ T336] security_d_instantiate+0x9f/0x100 [ 30.422918][ T336] d_instantiate+0x55/0x90 [ 30.427257][ T336] __debugfs_create_file+0x2e6/0x4c0 [ 30.432384][ T336] debugfs_create_file+0x4a/0x60 [ 30.437152][ T336] bdi_register_va+0x2a6/0x610 [ 30.441751][ T336] bdi_register+0xd1/0x120 [ 30.446003][ T336] ? vsnprintf+0x1e1/0x1c70 [ 30.450343][ T336] ? __device_add_disk+0x552/0x11a0 [ 30.455376][ T336] ? bdi_register_va+0x610/0x610 [ 30.460191][ T336] ? __kasan_check_read+0x11/0x20 [ 30.465009][ T336] ? blk_alloc_devt+0xd7/0x330 [ 30.469611][ T336] __device_add_disk+0x5de/0x11a0 [ 30.474471][ T336] ? device_add_disk+0x40/0x40 [ 30.479081][ T336] ? vsprintf+0x40/0x40 [ 30.483065][ T336] ? device_initialize+0x1e1/0x420 [ 30.488013][ T336] device_add_disk+0x2a/0x40 [ 30.492437][ T336] loop_add+0x580/0x750 [ 30.496432][ T336] loop_control_ioctl+0x448/0x620 [ 30.501290][ T336] ? loop_remove+0xb0/0xb0 [ 30.505728][ T336] ? _raw_spin_unlock_irq+0x4e/0x70 [ 30.510761][ T336] ? ptrace_notify+0x24c/0x350 [ 30.515363][ T336] ? do_notify_parent+0xa10/0xa10 [ 30.520226][ T336] ? security_file_ioctl+0x84/0xb0 [ 30.525160][ T336] ? loop_remove+0xb0/0xb0 [ 30.529416][ T336] __se_sys_ioctl+0x114/0x190 [ 30.534041][ T336] __x64_sys_ioctl+0x7b/0x90 [ 30.538464][ T336] do_syscall_64+0x34/0x70 [ 30.542715][ T336] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 30.548446][ T336] RIP: 0033:0x7f4305d14d39 [pid 336] ioctl(3, LOOP_CTL_ADD, 11) = 11 [ 30.552703][ T336] 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 [ 30.572150][ T336] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 30.580384][ T336] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 30.588195][ T336] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 30.596006][ T336] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 30.603818][ T336] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [pid 336] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 336] exit_group(0) = ? [pid 336] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=336, 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 337 attached , child_tidptr=0x5555572ea650) = 337 [pid 337] set_robust_list(0x5555572ea660, 24) = 0 [pid 337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 337] setpgid(0, 0) = 0 [pid 337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 337] write(3, "1000", 4) = 4 [pid 337] close(3) = 0 [pid 337] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 337] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 337] write(4, "76", 2) = 2 [ 30.611637][ T336] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 30.654442][ T337] FAULT_INJECTION: forcing a failure. [ 30.654442][ T337] name failslab, interval 1, probability 0, space 0, times 0 [ 30.666922][ T337] CPU: 1 PID: 337 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 30.676906][ T337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 30.686799][ T337] Call Trace: [ 30.689933][ T337] dump_stack_lvl+0x1e2/0x24b [ 30.694440][ T337] ? panic+0x80b/0x80b [ 30.698547][ T337] ? bfq_pos_tree_add_move+0x43b/0x43b [ 30.703817][ T337] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 30.708687][ T337] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 30.714476][ T337] dump_stack+0x15/0x17 [ 30.718397][ T337] should_fail+0x3c6/0x510 [ 30.722663][ T337] ? kobj_map+0x64/0x670 [ 30.726725][ T337] __should_failslab+0xa4/0xe0 [ 30.731504][ T337] should_failslab+0x9/0x20 [ 30.735844][ T337] __kmalloc+0x60/0x330 [ 30.739835][ T337] ? __device_add_disk+0x552/0x11a0 [ 30.744866][ T337] kobj_map+0x64/0x670 [ 30.748772][ T337] ? kobject_get+0xd1/0x120 [ 30.753113][ T337] ? exact_match+0x20/0x20 [ 30.757364][ T337] ? bdev_check_media_change+0x4d0/0x4d0 [ 30.762846][ T337] __device_add_disk+0x67b/0x11a0 [ 30.767708][ T337] ? device_add_disk+0x40/0x40 [ 30.772296][ T337] ? vsprintf+0x40/0x40 [ 30.776287][ T337] ? device_initialize+0x1e1/0x420 [ 30.781235][ T337] device_add_disk+0x2a/0x40 [ 30.785669][ T337] loop_add+0x580/0x750 [ 30.789653][ T337] loop_control_ioctl+0x448/0x620 [ 30.794510][ T337] ? loop_remove+0xb0/0xb0 [ 30.798765][ T337] ? _raw_spin_unlock_irq+0x4e/0x70 [ 30.803801][ T337] ? ptrace_notify+0x24c/0x350 [ 30.808400][ T337] ? do_notify_parent+0xa10/0xa10 [ 30.813262][ T337] ? security_file_ioctl+0x84/0xb0 [ 30.818206][ T337] ? loop_remove+0xb0/0xb0 [ 30.822459][ T337] __se_sys_ioctl+0x114/0x190 [ 30.826977][ T337] __x64_sys_ioctl+0x7b/0x90 [ 30.831402][ T337] do_syscall_64+0x34/0x70 [ 30.835654][ T337] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 30.841381][ T337] RIP: 0033:0x7f4305d14d39 [ 30.845632][ T337] 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 [ 30.865078][ T337] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 30.873321][ T337] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 30.881131][ T337] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 30.888943][ T337] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 30.896761][ T337] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [pid 337] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 337] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 337] exit_group(0) = ? [pid 337] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=337, 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=0x5555572ea650) = 338 ./strace-static-x86_64: Process 338 attached [pid 338] set_robust_list(0x5555572ea660, 24) = 0 [pid 338] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 338] setpgid(0, 0) = 0 [pid 338] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 338] write(3, "1000", 4) = 4 [pid 338] close(3) = 0 [pid 338] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 338] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 338] write(4, "76", 2) = 2 [ 30.904566][ T337] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 30.954943][ T338] FAULT_INJECTION: forcing a failure. [ 30.954943][ T338] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 30.968026][ T338] CPU: 0 PID: 338 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 30.978017][ T338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 30.987914][ T338] Call Trace: [ 30.991042][ T338] dump_stack_lvl+0x1e2/0x24b [ 30.995553][ T338] ? bfq_pos_tree_add_move+0x43b/0x43b [ 31.000847][ T338] dump_stack+0x15/0x17 [ 31.004838][ T338] should_fail+0x3c6/0x510 [ 31.009091][ T338] should_fail_alloc_page+0x52/0x60 [ 31.014124][ T338] __alloc_pages_nodemask+0x1b3/0xaf0 [ 31.019332][ T338] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 31.024713][ T338] ? __kasan_check_write+0x14/0x20 [ 31.029664][ T338] ? _raw_spin_lock+0xa4/0x1b0 [ 31.034261][ T338] __get_free_pages+0xe/0x30 [ 31.038697][ T338] selinux_genfs_get_sid+0x56/0x2a0 [ 31.043723][ T338] ? lockref_get+0xb4/0x110 [ 31.048062][ T338] inode_doinit_with_dentry+0x86f/0x1050 [ 31.053532][ T338] ? sb_finish_set_opts+0x7a0/0x7a0 [ 31.058576][ T338] ? current_time+0x1af/0x2f0 [ 31.063075][ T338] selinux_d_instantiate+0x27/0x40 [ 31.068023][ T338] security_d_instantiate+0x9f/0x100 [ 31.073144][ T338] d_instantiate+0x55/0x90 [ 31.077398][ T338] __debugfs_create_file+0x2e6/0x4c0 [ 31.082518][ T338] debugfs_create_file+0x4a/0x60 [ 31.087297][ T338] bdi_register_va+0x2a6/0x610 [ 31.091900][ T338] bdi_register+0xd1/0x120 [ 31.096144][ T338] ? __device_add_disk+0x552/0x11a0 [ 31.101184][ T338] ? bdi_register_va+0x610/0x610 [ 31.105953][ T338] ? __kasan_check_read+0x11/0x20 [ 31.110812][ T338] ? blk_alloc_devt+0xd7/0x330 [ 31.115411][ T338] __device_add_disk+0x5de/0x11a0 [ 31.120274][ T338] ? device_add_disk+0x40/0x40 [ 31.124873][ T338] ? vsprintf+0x40/0x40 [ 31.128868][ T338] ? device_initialize+0x1e1/0x420 [ 31.133898][ T338] device_add_disk+0x2a/0x40 [ 31.138332][ T338] loop_add+0x580/0x750 [ 31.142326][ T338] loop_control_ioctl+0x448/0x620 [ 31.147268][ T338] ? loop_remove+0xb0/0xb0 [ 31.151526][ T338] ? _raw_spin_unlock_irq+0x4e/0x70 [ 31.156553][ T338] ? ptrace_notify+0x24c/0x350 [ 31.161154][ T338] ? do_notify_parent+0xa10/0xa10 [ 31.166021][ T338] ? security_file_ioctl+0x84/0xb0 [ 31.170961][ T338] ? loop_remove+0xb0/0xb0 [ 31.175211][ T338] __se_sys_ioctl+0x114/0x190 [ 31.179731][ T338] __x64_sys_ioctl+0x7b/0x90 [ 31.184154][ T338] do_syscall_64+0x34/0x70 [ 31.188407][ T338] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 31.194132][ T338] RIP: 0033:0x7f4305d14d39 [ 31.198385][ T338] 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 [ 31.217830][ T338] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 31.226072][ T338] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 31.233884][ T338] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 31.241696][ T338] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 338] ioctl(3, LOOP_CTL_ADD, 11) = 11 [ 31.249521][ T338] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 31.257316][ T338] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 338] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 338] exit_group(0) = ? [pid 338] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=338, 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=0x5555572ea650) = 340 ./strace-static-x86_64: Process 340 attached [pid 340] set_robust_list(0x5555572ea660, 24) = 0 [pid 340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 340] setpgid(0, 0) = 0 [pid 340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 340] write(3, "1000", 4) = 4 [pid 340] close(3) = 0 [pid 340] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 340] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 340] write(4, "76", 2) = 2 [ 31.329152][ T292] udevd[292]: inotify_add_watch(7, /dev/loop11, 10) failed: No such file or directory [ 31.336542][ T340] FAULT_INJECTION: forcing a failure. [ 31.336542][ T340] name failslab, interval 1, probability 0, space 0, times 0 [ 31.350953][ T340] CPU: 1 PID: 340 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 31.360987][ T340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 31.370884][ T340] Call Trace: [ 31.374024][ T340] dump_stack_lvl+0x1e2/0x24b [ 31.378527][ T340] ? panic+0x80b/0x80b [ 31.382435][ T340] ? bfq_pos_tree_add_move+0x43b/0x43b [ 31.387726][ T340] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 31.392591][ T340] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 31.397624][ T340] dump_stack+0x15/0x17 [ 31.401609][ T340] should_fail+0x3c6/0x510 [ 31.405867][ T340] ? kobj_map+0x64/0x670 [ 31.409946][ T340] __should_failslab+0xa4/0xe0 [ 31.414544][ T340] should_failslab+0x9/0x20 [ 31.418883][ T340] __kmalloc+0x60/0x330 [ 31.422875][ T340] ? __device_add_disk+0x552/0x11a0 [ 31.427909][ T340] kobj_map+0x64/0x670 [ 31.431814][ T340] ? kobject_get+0xd1/0x120 [ 31.436152][ T340] ? exact_match+0x20/0x20 [ 31.440407][ T340] ? bdev_check_media_change+0x4d0/0x4d0 [ 31.445876][ T340] __device_add_disk+0x67b/0x11a0 [ 31.450739][ T340] ? device_add_disk+0x40/0x40 [ 31.455333][ T340] ? vsprintf+0x40/0x40 [ 31.459329][ T340] ? device_initialize+0x1e1/0x420 [ 31.464277][ T340] device_add_disk+0x2a/0x40 [ 31.468709][ T340] loop_add+0x580/0x750 [ 31.472695][ T340] loop_control_ioctl+0x448/0x620 [ 31.477552][ T340] ? loop_remove+0xb0/0xb0 [ 31.481809][ T340] ? asm_common_interrupt+0x1e/0x40 [ 31.486841][ T340] ? loop_remove+0xb0/0xb0 [ 31.491095][ T340] ? do_vfs_ioctl+0xf6/0x1a30 [ 31.495609][ T340] ? __se_sys_ioctl+0x108/0x190 [ 31.500298][ T340] ? loop_remove+0xb0/0xb0 [ 31.504549][ T340] __se_sys_ioctl+0x114/0x190 [ 31.509063][ T340] __x64_sys_ioctl+0x7b/0x90 [ 31.513489][ T340] do_syscall_64+0x34/0x70 [ 31.517743][ T340] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 31.523469][ T340] RIP: 0033:0x7f4305d14d39 [ 31.527723][ T340] 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 [ 31.547163][ T340] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 31.555410][ T340] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 31.563216][ T340] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 31.571027][ T340] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 340] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 340] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 340] exit_group(0) = ? [pid 340] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=340, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 341 ./strace-static-x86_64: Process 341 attached [pid 341] set_robust_list(0x5555572ea660, 24) = 0 [pid 341] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 341] setpgid(0, 0) = 0 [pid 341] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 341] write(3, "1000", 4) = 4 [pid 341] close(3) = 0 [pid 341] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 341] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 341] write(4, "76", 2) = 2 [ 31.578849][ T340] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 31.586654][ T340] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 31.624315][ T341] FAULT_INJECTION: forcing a failure. [ 31.624315][ T341] name failslab, interval 1, probability 0, space 0, times 0 [ 31.636978][ T341] CPU: 1 PID: 341 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 31.647028][ T341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 31.656906][ T341] Call Trace: [ 31.660038][ T341] dump_stack_lvl+0x1e2/0x24b [ 31.664541][ T341] ? panic+0x80b/0x80b [ 31.668450][ T341] ? bfq_pos_tree_add_move+0x43b/0x43b [ 31.673746][ T341] dump_stack+0x15/0x17 [ 31.677736][ T341] should_fail+0x3c6/0x510 [ 31.681990][ T341] ? security_inode_alloc+0x29/0x120 [ 31.687110][ T341] __should_failslab+0xa4/0xe0 [ 31.691714][ T341] should_failslab+0x9/0x20 [ 31.696049][ T341] kmem_cache_alloc+0x3d/0x2e0 [ 31.700649][ T341] ? slab_post_alloc_hook+0x61/0x2f0 [ 31.705769][ T341] security_inode_alloc+0x29/0x120 [ 31.710721][ T341] inode_init_always+0x767/0x9f0 [ 31.715489][ T341] new_inode_pseudo+0x93/0x220 [ 31.720149][ T341] new_inode+0x28/0x1c0 [ 31.724106][ T341] ? start_creating+0x1d4/0x2f0 [ 31.728785][ T341] __debugfs_create_file+0x14d/0x4c0 [ 31.733897][ T341] ? up_write+0x59/0x120 [ 31.737971][ T341] debugfs_create_file+0x4a/0x60 [ 31.742745][ T341] bdi_register_va+0x2a6/0x610 [ 31.747349][ T341] bdi_register+0xd1/0x120 [ 31.751595][ T341] ? vsnprintf+0x1e1/0x1c70 [ 31.755937][ T341] ? __device_add_disk+0x552/0x11a0 [ 31.760968][ T341] ? bdi_register_va+0x610/0x610 [ 31.765744][ T341] ? __kasan_check_read+0x11/0x20 [ 31.770606][ T341] ? blk_alloc_devt+0xd7/0x330 [ 31.775204][ T341] __device_add_disk+0x5de/0x11a0 [ 31.780068][ T341] ? device_add_disk+0x40/0x40 [ 31.784666][ T341] ? vsprintf+0x40/0x40 [ 31.788663][ T341] ? device_initialize+0x1e1/0x420 [ 31.793605][ T341] device_add_disk+0x2a/0x40 [ 31.798033][ T341] loop_add+0x580/0x750 [ 31.802022][ T341] loop_control_ioctl+0x448/0x620 [ 31.806882][ T341] ? loop_remove+0xb0/0xb0 [ 31.811139][ T341] ? _raw_spin_unlock_irq+0x4e/0x70 [ 31.816171][ T341] ? ptrace_notify+0x24c/0x350 [ 31.820772][ T341] ? do_notify_parent+0xa10/0xa10 [ 31.825633][ T341] ? security_file_ioctl+0x84/0xb0 [ 31.830580][ T341] ? loop_remove+0xb0/0xb0 [ 31.834832][ T341] __se_sys_ioctl+0x114/0x190 [ 31.839346][ T341] __x64_sys_ioctl+0x7b/0x90 [ 31.843775][ T341] do_syscall_64+0x34/0x70 [ 31.848118][ T341] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 31.853839][ T341] RIP: 0033:0x7f4305d14d39 [ 31.858093][ T341] 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 [ 31.877538][ T341] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 31.885780][ T341] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 31.893590][ T341] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 31.901401][ T341] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 31.909212][ T341] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 31.917024][ T341] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 341] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 341] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 341] exit_group(0) = ? [pid 341] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=341, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 342 ./strace-static-x86_64: Process 342 attached [pid 342] set_robust_list(0x5555572ea660, 24) = 0 [pid 342] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 342] setpgid(0, 0) = 0 [pid 342] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 342] write(3, "1000", 4) = 4 [pid 342] close(3) = 0 [pid 342] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 342] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 342] write(4, "76", 2) = 2 [pid 342] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 342] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 342] exit_group(0) = ? [pid 342] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=342, 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=0x5555572ea650) = 343 ./strace-static-x86_64: Process 343 attached [pid 343] set_robust_list(0x5555572ea660, 24) = 0 [pid 343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 343] setpgid(0, 0) = 0 [pid 343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 343] write(3, "1000", 4) = 4 [pid 343] close(3) = 0 [pid 343] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 343] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 343] write(4, "76", 2) = 2 [ 31.925004][ T341] debugfs: out of free dentries, can not create file 'stats' [ 31.973143][ T343] FAULT_INJECTION: forcing a failure. [ 31.973143][ T343] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 31.986302][ T343] CPU: 1 PID: 343 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 31.996344][ T343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 32.006325][ T343] Call Trace: [ 32.009461][ T343] dump_stack_lvl+0x1e2/0x24b [ 32.013968][ T343] ? bfq_pos_tree_add_move+0x43b/0x43b [ 32.019262][ T343] dump_stack+0x15/0x17 [ 32.023251][ T343] should_fail+0x3c6/0x510 [ 32.027502][ T343] should_fail_alloc_page+0x52/0x60 [ 32.032537][ T343] __alloc_pages_nodemask+0x1b3/0xaf0 [ 32.037754][ T343] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 32.043129][ T343] ? __kasan_check_write+0x14/0x20 [ 32.048077][ T343] ? _raw_spin_lock+0xa4/0x1b0 [ 32.052675][ T343] __get_free_pages+0xe/0x30 [ 32.057116][ T343] selinux_genfs_get_sid+0x56/0x2a0 [ 32.062135][ T343] ? lockref_get+0xb4/0x110 [ 32.066477][ T343] inode_doinit_with_dentry+0x86f/0x1050 [ 32.071944][ T343] ? sb_finish_set_opts+0x7a0/0x7a0 [ 32.076979][ T343] ? current_time+0x1af/0x2f0 [ 32.081487][ T343] selinux_d_instantiate+0x27/0x40 [ 32.086436][ T343] security_d_instantiate+0x9f/0x100 [ 32.091562][ T343] d_instantiate+0x55/0x90 [ 32.095814][ T343] __debugfs_create_file+0x2e6/0x4c0 [ 32.100938][ T343] debugfs_create_file+0x4a/0x60 [ 32.105710][ T343] bdi_register_va+0x2a6/0x610 [ 32.110309][ T343] bdi_register+0xd1/0x120 [ 32.114554][ T343] ? vsnprintf+0x1e1/0x1c70 [ 32.118898][ T343] ? __device_add_disk+0x552/0x11a0 [ 32.123932][ T343] ? bdi_register_va+0x610/0x610 [ 32.128708][ T343] ? __kasan_check_read+0x11/0x20 [ 32.133563][ T343] ? blk_alloc_devt+0xd7/0x330 [ 32.138164][ T343] __device_add_disk+0x5de/0x11a0 [ 32.143035][ T343] ? device_add_disk+0x40/0x40 [ 32.147631][ T343] ? vsprintf+0x40/0x40 [ 32.151624][ T343] ? device_initialize+0x1e1/0x420 [ 32.156565][ T343] device_add_disk+0x2a/0x40 [ 32.160994][ T343] loop_add+0x580/0x750 [ 32.164995][ T343] loop_control_ioctl+0x448/0x620 [ 32.169847][ T343] ? loop_remove+0xb0/0xb0 [ 32.174097][ T343] ? _raw_spin_unlock_irq+0x4e/0x70 [ 32.179135][ T343] ? ptrace_notify+0x24c/0x350 [ 32.183733][ T343] ? do_notify_parent+0xa10/0xa10 [ 32.188592][ T343] ? security_file_ioctl+0x84/0xb0 [ 32.193537][ T343] ? loop_remove+0xb0/0xb0 [ 32.197793][ T343] __se_sys_ioctl+0x114/0x190 [ 32.202306][ T343] __x64_sys_ioctl+0x7b/0x90 [ 32.206734][ T343] do_syscall_64+0x34/0x70 [ 32.210988][ T343] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 32.216713][ T343] RIP: 0033:0x7f4305d14d39 [ 32.220963][ T343] 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 [ 32.240406][ T343] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 32.248652][ T343] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 32.256551][ T343] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 32.264367][ T343] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 343] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 343] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 343] exit_group(0) = ? [pid 343] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=343, 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 345 attached [pid 345] set_robust_list(0x5555572ea660, 24) = 0 [pid 345] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 345] setpgid(0, 0) = 0 [pid 345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 289] <... clone resumed>, child_tidptr=0x5555572ea650) = 345 [pid 345] <... openat resumed>) = 3 [pid 345] write(3, "1000", 4) = 4 [pid 345] close(3) = 0 [pid 345] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 345] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 345] write(4, "76", 2) = 2 [pid 345] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [ 32.272176][ T343] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 32.280160][ T343] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 345] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 345] exit_group(0) = ? [pid 345] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=345, 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=0x5555572ea650) = 346 ./strace-static-x86_64: Process 346 attached [pid 346] set_robust_list(0x5555572ea660, 24) = 0 [pid 346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 346] setpgid(0, 0) = 0 [pid 346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 346] write(3, "1000", 4) = 4 [pid 346] close(3) = 0 [pid 346] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 346] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 346] write(4, "76", 2) = 2 [ 32.372783][ T346] FAULT_INJECTION: forcing a failure. [ 32.372783][ T346] name failslab, interval 1, probability 0, space 0, times 0 [ 32.385385][ T346] CPU: 0 PID: 346 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 32.395425][ T346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 32.405321][ T346] Call Trace: [ 32.408485][ T346] dump_stack_lvl+0x1e2/0x24b [ 32.413043][ T346] ? panic+0x80b/0x80b [ 32.416950][ T346] ? bfq_pos_tree_add_move+0x43b/0x43b [ 32.422255][ T346] dump_stack+0x15/0x17 [ 32.426239][ T346] should_fail+0x3c6/0x510 [ 32.430492][ T346] ? security_inode_alloc+0x29/0x120 [ 32.435609][ T346] __should_failslab+0xa4/0xe0 [ 32.440217][ T346] should_failslab+0x9/0x20 [ 32.444556][ T346] kmem_cache_alloc+0x3d/0x2e0 [ 32.449147][ T346] ? slab_post_alloc_hook+0x61/0x2f0 [ 32.454270][ T346] security_inode_alloc+0x29/0x120 [ 32.459217][ T346] inode_init_always+0x767/0x9f0 [ 32.463991][ T346] new_inode_pseudo+0x93/0x220 [ 32.468591][ T346] new_inode+0x28/0x1c0 [ 32.472581][ T346] ? start_creating+0x1d4/0x2f0 [ 32.477271][ T346] __debugfs_create_file+0x14d/0x4c0 [ 32.482404][ T346] ? up_write+0x59/0x120 [ 32.486467][ T346] debugfs_create_file+0x4a/0x60 [ 32.491243][ T346] bdi_register_va+0x2a6/0x610 [ 32.495843][ T346] bdi_register+0xd1/0x120 [ 32.500095][ T346] ? vsnprintf+0x1e1/0x1c70 [ 32.504437][ T346] ? __device_add_disk+0x552/0x11a0 [ 32.509470][ T346] ? bdi_register_va+0x610/0x610 [ 32.514244][ T346] ? __kasan_check_read+0x11/0x20 [ 32.519102][ T346] ? blk_alloc_devt+0xd7/0x330 [ 32.523706][ T346] __device_add_disk+0x5de/0x11a0 [ 32.528566][ T346] ? device_add_disk+0x40/0x40 [ 32.533163][ T346] ? vsprintf+0x40/0x40 [ 32.537158][ T346] ? device_initialize+0x1e1/0x420 [ 32.542104][ T346] device_add_disk+0x2a/0x40 [ 32.546527][ T346] loop_add+0x580/0x750 [ 32.550523][ T346] loop_control_ioctl+0x448/0x620 [ 32.555408][ T346] ? loop_remove+0xb0/0xb0 [ 32.559649][ T346] ? _raw_spin_unlock_irq+0x4e/0x70 [ 32.564679][ T346] ? ptrace_notify+0x24c/0x350 [ 32.569277][ T346] ? do_notify_parent+0xa10/0xa10 [ 32.574136][ T346] ? security_file_ioctl+0x84/0xb0 [ 32.579096][ T346] ? loop_remove+0xb0/0xb0 [ 32.583334][ T346] __se_sys_ioctl+0x114/0x190 [ 32.587948][ T346] __x64_sys_ioctl+0x7b/0x90 [ 32.592366][ T346] do_syscall_64+0x34/0x70 [ 32.596619][ T346] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 32.602355][ T346] RIP: 0033:0x7f4305d14d39 [ 32.606602][ T346] 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 [ 32.626044][ T346] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 32.634286][ T346] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 32.642098][ T346] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 32.649907][ T346] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 32.657727][ T346] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 32.665535][ T346] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 346] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 346] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 346] exit_group(0) = ? [pid 346] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=346, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 347 ./strace-static-x86_64: Process 347 attached [pid 347] set_robust_list(0x5555572ea660, 24) = 0 [pid 347] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 347] setpgid(0, 0) = 0 [pid 347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 347] write(3, "1000", 4) = 4 [pid 347] close(3) = 0 [pid 347] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 347] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 347] write(4, "76", 2) = 2 [pid 347] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 347] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 347] exit_group(0) = ? [pid 347] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=347, 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=0x5555572ea650) = 348 ./strace-static-x86_64: Process 348 attached [pid 348] set_robust_list(0x5555572ea660, 24) = 0 [pid 348] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 348] setpgid(0, 0) = 0 [pid 348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 348] write(3, "1000", 4) = 4 [pid 348] close(3) = 0 [pid 348] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [ 32.673556][ T346] debugfs: out of free dentries, can not create file 'stats' [pid 348] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 348] write(4, "76", 2) = 2 [ 32.744430][ T348] FAULT_INJECTION: forcing a failure. [ 32.744430][ T348] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 32.757613][ T348] CPU: 1 PID: 348 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 32.767638][ T348] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 32.777529][ T348] Call Trace: [ 32.780665][ T348] dump_stack_lvl+0x1e2/0x24b [ 32.785171][ T348] ? bfq_pos_tree_add_move+0x43b/0x43b [ 32.790464][ T348] dump_stack+0x15/0x17 [ 32.794455][ T348] should_fail+0x3c6/0x510 [ 32.798712][ T348] should_fail_alloc_page+0x52/0x60 [ 32.803745][ T348] __alloc_pages_nodemask+0x1b3/0xaf0 [ 32.808957][ T348] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 32.814334][ T348] ? __kasan_check_write+0x14/0x20 [ 32.819282][ T348] ? _raw_spin_lock+0xa4/0x1b0 [ 32.823879][ T348] __get_free_pages+0xe/0x30 [ 32.828307][ T348] selinux_genfs_get_sid+0x56/0x2a0 [ 32.833340][ T348] ? lockref_get+0xb4/0x110 [ 32.837682][ T348] inode_doinit_with_dentry+0x86f/0x1050 [ 32.843147][ T348] ? sb_finish_set_opts+0x7a0/0x7a0 [ 32.848183][ T348] ? current_time+0x1af/0x2f0 [ 32.852695][ T348] selinux_d_instantiate+0x27/0x40 [ 32.857647][ T348] security_d_instantiate+0x9f/0x100 [ 32.862762][ T348] d_instantiate+0x55/0x90 [ 32.867015][ T348] __debugfs_create_file+0x2e6/0x4c0 [ 32.872137][ T348] debugfs_create_file+0x4a/0x60 [ 32.876912][ T348] bdi_register_va+0x2a6/0x610 [ 32.881510][ T348] bdi_register+0xd1/0x120 [ 32.885764][ T348] ? vsnprintf+0x1e1/0x1c70 [ 32.890111][ T348] ? __device_add_disk+0x552/0x11a0 [ 32.895139][ T348] ? bdi_register_va+0x610/0x610 [ 32.899912][ T348] ? __kasan_check_read+0x11/0x20 [ 32.904770][ T348] ? blk_alloc_devt+0xd7/0x330 [ 32.909374][ T348] __device_add_disk+0x5de/0x11a0 [ 32.914232][ T348] ? device_add_disk+0x40/0x40 [ 32.918837][ T348] ? vsprintf+0x40/0x40 [ 32.922828][ T348] ? device_initialize+0x1e1/0x420 [ 32.927785][ T348] device_add_disk+0x2a/0x40 [ 32.932199][ T348] loop_add+0x580/0x750 [ 32.936189][ T348] loop_control_ioctl+0x448/0x620 [ 32.941051][ T348] ? loop_remove+0xb0/0xb0 [ 32.945304][ T348] ? _raw_spin_unlock_irq+0x4e/0x70 [ 32.950340][ T348] ? ptrace_notify+0x24c/0x350 [ 32.954945][ T348] ? do_notify_parent+0xa10/0xa10 [ 32.959805][ T348] ? security_file_ioctl+0x84/0xb0 [ 32.964747][ T348] ? loop_remove+0xb0/0xb0 [ 32.969000][ T348] __se_sys_ioctl+0x114/0x190 [ 32.973511][ T348] __x64_sys_ioctl+0x7b/0x90 [ 32.977943][ T348] do_syscall_64+0x34/0x70 [ 32.982196][ T348] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 32.987923][ T348] RIP: 0033:0x7f4305d14d39 [ 32.992175][ T348] 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 [ 33.011615][ T348] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 33.019858][ T348] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 33.027677][ T348] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 33.035481][ T348] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 348] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 348] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 348] exit_group(0) = ? [pid 348] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=348, 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=0x5555572ea650) = 349 ./strace-static-x86_64: Process 349 attached [pid 349] set_robust_list(0x5555572ea660, 24) = 0 [pid 349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 349] setpgid(0, 0) = 0 [pid 349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 349] write(3, "1000", 4) = 4 [pid 349] close(3) = 0 [pid 349] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 349] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 349] write(4, "76", 2) = 2 [ 33.043293][ T348] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 33.051104][ T348] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 33.088951][ T292] udevd[292]: inotify_add_watch(7, /dev/loop11, 10) failed: No such file or directory [ 33.097213][ T349] FAULT_INJECTION: forcing a failure. [ 33.097213][ T349] name failslab, interval 1, probability 0, space 0, times 0 [ 33.110763][ T349] CPU: 1 PID: 349 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 33.120796][ T349] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 33.130777][ T349] Call Trace: [ 33.133913][ T349] dump_stack_lvl+0x1e2/0x24b [ 33.138420][ T349] ? panic+0x80b/0x80b [ 33.142323][ T349] ? bfq_pos_tree_add_move+0x43b/0x43b [ 33.147618][ T349] ? __lookup_slow+0x2fe/0x400 [ 33.152224][ T349] dump_stack+0x15/0x17 [ 33.156210][ T349] should_fail+0x3c6/0x510 [ 33.160477][ T349] ? new_inode_pseudo+0x7c/0x220 [ 33.165243][ T349] __should_failslab+0xa4/0xe0 [ 33.169849][ T349] should_failslab+0x9/0x20 [ 33.174177][ T349] kmem_cache_alloc+0x3d/0x2e0 [ 33.178779][ T349] new_inode_pseudo+0x7c/0x220 [ 33.183380][ T349] new_inode+0x28/0x1c0 [ 33.187382][ T349] ? start_creating+0x1d4/0x2f0 [ 33.192067][ T349] __debugfs_create_file+0x14d/0x4c0 [ 33.197314][ T349] ? up_write+0x59/0x120 [ 33.201388][ T349] debugfs_create_file+0x4a/0x60 [ 33.206163][ T349] bdi_register_va+0x2a6/0x610 [ 33.210759][ T349] bdi_register+0xd1/0x120 [ 33.215001][ T349] ? vsnprintf+0x1e1/0x1c70 [ 33.219342][ T349] ? __device_add_disk+0x552/0x11a0 [ 33.224377][ T349] ? bdi_register_va+0x610/0x610 [ 33.229153][ T349] ? __kasan_check_read+0x11/0x20 [ 33.234010][ T349] ? blk_alloc_devt+0xd7/0x330 [ 33.238609][ T349] __device_add_disk+0x5de/0x11a0 [ 33.243473][ T349] ? device_add_disk+0x40/0x40 [ 33.248075][ T349] ? vsprintf+0x40/0x40 [ 33.252064][ T349] ? device_initialize+0x1e1/0x420 [ 33.257012][ T349] device_add_disk+0x2a/0x40 [ 33.261438][ T349] loop_add+0x580/0x750 [ 33.265449][ T349] loop_control_ioctl+0x448/0x620 [ 33.270299][ T349] ? loop_remove+0xb0/0xb0 [ 33.274550][ T349] ? _raw_spin_unlock_irq+0x4e/0x70 [ 33.279577][ T349] ? ptrace_notify+0x24c/0x350 [ 33.284175][ T349] ? do_notify_parent+0xa10/0xa10 [ 33.289037][ T349] ? security_file_ioctl+0x84/0xb0 [ 33.293982][ T349] ? loop_remove+0xb0/0xb0 [ 33.298237][ T349] __se_sys_ioctl+0x114/0x190 [ 33.302750][ T349] __x64_sys_ioctl+0x7b/0x90 [ 33.307176][ T349] do_syscall_64+0x34/0x70 [ 33.311428][ T349] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 33.317158][ T349] RIP: 0033:0x7f4305d14d39 [pid 349] ioctl(3, LOOP_CTL_ADD, 11) = 11 [ 33.321411][ T349] 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 [ 33.340850][ T349] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 33.349096][ T349] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 33.356908][ T349] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 33.364719][ T349] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 33.372535][ T349] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 33.380341][ T349] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 349] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 349] exit_group(0) = ? [pid 349] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=349, 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=0x5555572ea650) = 351 ./strace-static-x86_64: Process 351 attached [pid 351] set_robust_list(0x5555572ea660, 24) = 0 [pid 351] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 351] setpgid(0, 0) = 0 [pid 351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 351] write(3, "1000", 4) = 4 [pid 351] close(3) = 0 [pid 351] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 351] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 351] write(4, "76", 2) = 2 [ 33.389447][ T349] debugfs: out of free dentries, can not create file 'stats' [ 33.433499][ T351] FAULT_INJECTION: forcing a failure. [ 33.433499][ T351] name failslab, interval 1, probability 0, space 0, times 0 [ 33.446033][ T351] CPU: 0 PID: 351 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 33.456077][ T351] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 33.465968][ T351] Call Trace: [ 33.469101][ T351] dump_stack_lvl+0x1e2/0x24b [ 33.473612][ T351] ? panic+0x80b/0x80b [ 33.477518][ T351] ? bfq_pos_tree_add_move+0x43b/0x43b [ 33.482813][ T351] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 33.487668][ T351] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 33.492707][ T351] dump_stack+0x15/0x17 [ 33.496699][ T351] should_fail+0x3c6/0x510 [ 33.500953][ T351] ? kobj_map+0x64/0x670 [ 33.505033][ T351] __should_failslab+0xa4/0xe0 [ 33.509640][ T351] should_failslab+0x9/0x20 [ 33.513968][ T351] __kmalloc+0x60/0x330 [ 33.517979][ T351] ? __device_add_disk+0x552/0x11a0 [ 33.523001][ T351] kobj_map+0x64/0x670 [ 33.526903][ T351] ? kobject_get+0xd1/0x120 [ 33.531252][ T351] ? exact_match+0x20/0x20 [ 33.535498][ T351] ? bdev_check_media_change+0x4d0/0x4d0 [ 33.540964][ T351] __device_add_disk+0x67b/0x11a0 [ 33.545822][ T351] ? device_add_disk+0x40/0x40 [ 33.550424][ T351] ? vsprintf+0x40/0x40 [ 33.554415][ T351] ? device_initialize+0x1e1/0x420 [ 33.559362][ T351] device_add_disk+0x2a/0x40 [ 33.563791][ T351] loop_add+0x580/0x750 [ 33.567781][ T351] loop_control_ioctl+0x448/0x620 [ 33.572640][ T351] ? loop_remove+0xb0/0xb0 [ 33.576895][ T351] ? _raw_spin_unlock_irq+0x4e/0x70 [ 33.581928][ T351] ? ptrace_notify+0x24c/0x350 [ 33.586528][ T351] ? do_notify_parent+0xa10/0xa10 [ 33.591390][ T351] ? security_file_ioctl+0x84/0xb0 [ 33.596334][ T351] ? loop_remove+0xb0/0xb0 [ 33.600589][ T351] __se_sys_ioctl+0x114/0x190 [ 33.605101][ T351] __x64_sys_ioctl+0x7b/0x90 [ 33.609530][ T351] do_syscall_64+0x34/0x70 [ 33.613782][ T351] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 33.619509][ T351] RIP: 0033:0x7f4305d14d39 [pid 351] ioctl(3, LOOP_CTL_ADD, 11) = 11 [ 33.623770][ T351] 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 [ 33.643206][ T351] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 33.651455][ T351] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 33.659258][ T351] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 33.667069][ T351] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 33.674883][ T351] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [pid 351] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 351] exit_group(0) = ? [pid 351] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=351, 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=0x5555572ea650) = 352 ./strace-static-x86_64: Process 352 attached [pid 352] set_robust_list(0x5555572ea660, 24) = 0 [pid 352] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 352] setpgid(0, 0) = 0 [pid 352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 352] write(3, "1000", 4) = 4 [pid 352] close(3) = 0 [pid 352] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 352] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 352] write(4, "76", 2) = 2 [ 33.682697][ T351] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 33.724419][ T352] FAULT_INJECTION: forcing a failure. [ 33.724419][ T352] name failslab, interval 1, probability 0, space 0, times 0 [ 33.736937][ T352] CPU: 1 PID: 352 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 33.746891][ T352] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 33.756783][ T352] Call Trace: [ 33.759915][ T352] dump_stack_lvl+0x1e2/0x24b [ 33.764421][ T352] ? panic+0x80b/0x80b [ 33.768326][ T352] ? bfq_pos_tree_add_move+0x43b/0x43b [ 33.773622][ T352] ? __lookup_slow+0x2fe/0x400 [ 33.778222][ T352] dump_stack+0x15/0x17 [ 33.782222][ T352] should_fail+0x3c6/0x510 [ 33.786469][ T352] ? new_inode_pseudo+0x7c/0x220 [ 33.791242][ T352] __should_failslab+0xa4/0xe0 [ 33.795840][ T352] should_failslab+0x9/0x20 [ 33.800189][ T352] kmem_cache_alloc+0x3d/0x2e0 [ 33.804786][ T352] new_inode_pseudo+0x7c/0x220 [ 33.809380][ T352] new_inode+0x28/0x1c0 [ 33.813369][ T352] ? start_creating+0x1d4/0x2f0 [ 33.818057][ T352] __debugfs_create_file+0x14d/0x4c0 [ 33.823191][ T352] ? up_write+0x59/0x120 [ 33.827266][ T352] debugfs_create_file+0x4a/0x60 [ 33.832047][ T352] bdi_register_va+0x2a6/0x610 [ 33.836647][ T352] bdi_register+0xd1/0x120 [ 33.840889][ T352] ? vsnprintf+0x1e1/0x1c70 [ 33.845233][ T352] ? __device_add_disk+0x552/0x11a0 [ 33.850260][ T352] ? bdi_register_va+0x610/0x610 [ 33.855033][ T352] ? __kasan_check_read+0x11/0x20 [ 33.859892][ T352] ? blk_alloc_devt+0xd7/0x330 [ 33.864498][ T352] __device_add_disk+0x5de/0x11a0 [ 33.869358][ T352] ? device_add_disk+0x40/0x40 [ 33.873954][ T352] ? vsprintf+0x40/0x40 [ 33.877950][ T352] ? device_initialize+0x1e1/0x420 [ 33.882894][ T352] device_add_disk+0x2a/0x40 [ 33.887320][ T352] loop_add+0x580/0x750 [ 33.891311][ T352] loop_control_ioctl+0x448/0x620 [ 33.896186][ T352] ? loop_remove+0xb0/0xb0 [ 33.900446][ T352] ? _raw_spin_unlock_irq+0x4e/0x70 [ 33.905476][ T352] ? ptrace_notify+0x24c/0x350 [ 33.910072][ T352] ? do_notify_parent+0xa10/0xa10 [ 33.914919][ T352] ? security_file_ioctl+0x84/0xb0 [ 33.919874][ T352] ? loop_remove+0xb0/0xb0 [ 33.924119][ T352] __se_sys_ioctl+0x114/0x190 [ 33.928633][ T352] __x64_sys_ioctl+0x7b/0x90 [ 33.933059][ T352] do_syscall_64+0x34/0x70 [ 33.937313][ T352] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 33.943038][ T352] RIP: 0033:0x7f4305d14d39 [ 33.947296][ T352] 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 [ 33.966825][ T352] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 33.975065][ T352] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [pid 352] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 352] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 352] exit_group(0) = ? [pid 352] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=352, 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=0x5555572ea650) = 353 ./strace-static-x86_64: Process 353 attached [pid 353] set_robust_list(0x5555572ea660, 24) = 0 [pid 353] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 353] setpgid(0, 0) = 0 [pid 353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 353] write(3, "1000", 4) = 4 [pid 353] close(3) = 0 [pid 353] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 353] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 353] write(4, "76", 2) = 2 [ 33.982875][ T352] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 33.990687][ T352] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 33.998517][ T352] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 34.006309][ T352] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 34.014397][ T352] debugfs: out of free dentries, can not create file 'stats' [ 34.062810][ T353] FAULT_INJECTION: forcing a failure. [ 34.062810][ T353] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 34.075972][ T353] CPU: 0 PID: 353 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 34.085976][ T353] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 34.095868][ T353] Call Trace: [ 34.098998][ T353] dump_stack_lvl+0x1e2/0x24b [ 34.103521][ T353] ? bfq_pos_tree_add_move+0x43b/0x43b [ 34.108801][ T353] dump_stack+0x15/0x17 [ 34.112793][ T353] should_fail+0x3c6/0x510 [ 34.117049][ T353] should_fail_alloc_page+0x52/0x60 [ 34.122085][ T353] __alloc_pages_nodemask+0x1b3/0xaf0 [ 34.127302][ T353] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 34.132670][ T353] ? __kasan_check_write+0x14/0x20 [ 34.137621][ T353] ? _raw_spin_lock+0xa4/0x1b0 [ 34.142218][ T353] __get_free_pages+0xe/0x30 [ 34.146651][ T353] selinux_genfs_get_sid+0x56/0x2a0 [ 34.151685][ T353] ? lockref_get+0xb4/0x110 [ 34.156016][ T353] inode_doinit_with_dentry+0x86f/0x1050 [ 34.161488][ T353] ? sb_finish_set_opts+0x7a0/0x7a0 [ 34.166520][ T353] ? current_time+0x1af/0x2f0 [ 34.171033][ T353] selinux_d_instantiate+0x27/0x40 [ 34.175978][ T353] security_d_instantiate+0x9f/0x100 [ 34.181105][ T353] d_instantiate+0x55/0x90 [ 34.185352][ T353] __debugfs_create_file+0x2e6/0x4c0 [ 34.190474][ T353] debugfs_create_file+0x4a/0x60 [ 34.195246][ T353] bdi_register_va+0x2a6/0x610 [ 34.199849][ T353] bdi_register+0xd1/0x120 [ 34.204098][ T353] ? vsnprintf+0x1e1/0x1c70 [ 34.208438][ T353] ? __device_add_disk+0x552/0x11a0 [ 34.213472][ T353] ? bdi_register_va+0x610/0x610 [ 34.218246][ T353] ? __kasan_check_read+0x11/0x20 [ 34.223105][ T353] ? blk_alloc_devt+0xd7/0x330 [ 34.227707][ T353] __device_add_disk+0x5de/0x11a0 [ 34.232569][ T353] ? device_add_disk+0x40/0x40 [ 34.237254][ T353] ? vsprintf+0x40/0x40 [ 34.241252][ T353] ? device_initialize+0x1e1/0x420 [ 34.246200][ T353] device_add_disk+0x2a/0x40 [ 34.250632][ T353] loop_add+0x580/0x750 [ 34.254613][ T353] loop_control_ioctl+0x448/0x620 [ 34.259474][ T353] ? loop_remove+0xb0/0xb0 [ 34.263728][ T353] ? _raw_spin_unlock_irq+0x4e/0x70 [ 34.268761][ T353] ? ptrace_notify+0x24c/0x350 [ 34.273362][ T353] ? do_notify_parent+0xa10/0xa10 [ 34.278225][ T353] ? security_file_ioctl+0x84/0xb0 [ 34.283177][ T353] ? loop_remove+0xb0/0xb0 [ 34.287421][ T353] __se_sys_ioctl+0x114/0x190 [ 34.291935][ T353] __x64_sys_ioctl+0x7b/0x90 [ 34.296361][ T353] do_syscall_64+0x34/0x70 [ 34.300617][ T353] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 34.306343][ T353] RIP: 0033:0x7f4305d14d39 [ 34.310596][ T353] 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 [ 34.330039][ T353] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 34.338283][ T353] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 34.346092][ T353] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 34.353991][ T353] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 353] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 353] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 353] exit_group(0) = ? [pid 353] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=353, 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=0x5555572ea650) = 354 ./strace-static-x86_64: Process 354 attached [pid 354] set_robust_list(0x5555572ea660, 24) = 0 [pid 354] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 354] setpgid(0, 0) = 0 [pid 354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 354] write(3, "1000", 4) = 4 [pid 354] close(3) = 0 [pid 354] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 354] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 354] write(4, "76", 2) = 2 [pid 354] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [ 34.361811][ T353] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 34.369613][ T353] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 354] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 354] exit_group(0) = ? [pid 354] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=354, 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=0x5555572ea650) = 356 ./strace-static-x86_64: Process 356 attached [pid 356] set_robust_list(0x5555572ea660, 24) = 0 [pid 356] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 356] setpgid(0, 0) = 0 [pid 356] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 356] write(3, "1000", 4) = 4 [pid 356] close(3) = 0 [pid 356] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 356] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 356] write(4, "76", 2) = 2 [ 34.455310][ T356] FAULT_INJECTION: forcing a failure. [ 34.455310][ T356] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 34.468471][ T356] CPU: 1 PID: 356 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 34.478493][ T356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 34.488384][ T356] Call Trace: [ 34.491518][ T356] dump_stack_lvl+0x1e2/0x24b [ 34.496027][ T356] ? bfq_pos_tree_add_move+0x43b/0x43b [ 34.501327][ T356] dump_stack+0x15/0x17 [ 34.505311][ T356] should_fail+0x3c6/0x510 [ 34.509570][ T356] should_fail_alloc_page+0x52/0x60 [ 34.514597][ T356] __alloc_pages_nodemask+0x1b3/0xaf0 [ 34.519815][ T356] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 34.525192][ T356] ? __kasan_check_write+0x14/0x20 [ 34.530137][ T356] ? _raw_spin_lock+0xa4/0x1b0 [ 34.534736][ T356] __get_free_pages+0xe/0x30 [ 34.539184][ T356] selinux_genfs_get_sid+0x56/0x2a0 [ 34.544222][ T356] ? lockref_get+0xb4/0x110 [ 34.548541][ T356] inode_doinit_with_dentry+0x86f/0x1050 [ 34.554008][ T356] ? sb_finish_set_opts+0x7a0/0x7a0 [ 34.559041][ T356] ? current_time+0x1af/0x2f0 [ 34.563552][ T356] selinux_d_instantiate+0x27/0x40 [ 34.568500][ T356] security_d_instantiate+0x9f/0x100 [ 34.573623][ T356] d_instantiate+0x55/0x90 [ 34.577876][ T356] __debugfs_create_file+0x2e6/0x4c0 [ 34.582995][ T356] debugfs_create_file+0x4a/0x60 [ 34.587769][ T356] bdi_register_va+0x2a6/0x610 [ 34.592366][ T356] bdi_register+0xd1/0x120 [ 34.596619][ T356] ? vsnprintf+0x1e1/0x1c70 [ 34.600961][ T356] ? __device_add_disk+0x552/0x11a0 [ 34.605992][ T356] ? bdi_register_va+0x610/0x610 [ 34.610770][ T356] ? __kasan_check_read+0x11/0x20 [ 34.615627][ T356] ? blk_alloc_devt+0xd7/0x330 [ 34.620229][ T356] __device_add_disk+0x5de/0x11a0 [ 34.625088][ T356] ? device_add_disk+0x40/0x40 [ 34.629687][ T356] ? vsprintf+0x40/0x40 [ 34.633683][ T356] ? device_initialize+0x1e1/0x420 [ 34.638639][ T356] device_add_disk+0x2a/0x40 [ 34.643056][ T356] loop_add+0x580/0x750 [ 34.647049][ T356] loop_control_ioctl+0x448/0x620 [ 34.651908][ T356] ? loop_remove+0xb0/0xb0 [ 34.656163][ T356] ? _raw_spin_unlock_irq+0x4e/0x70 [ 34.661196][ T356] ? ptrace_notify+0x24c/0x350 [ 34.665799][ T356] ? do_notify_parent+0xa10/0xa10 [ 34.670661][ T356] ? security_file_ioctl+0x84/0xb0 [ 34.675607][ T356] ? loop_remove+0xb0/0xb0 [ 34.679856][ T356] __se_sys_ioctl+0x114/0x190 [ 34.684371][ T356] __x64_sys_ioctl+0x7b/0x90 [ 34.688797][ T356] do_syscall_64+0x34/0x70 [ 34.693051][ T356] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 34.698777][ T356] RIP: 0033:0x7f4305d14d39 [ 34.703031][ T356] 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 [ 34.722469][ T356] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 34.730716][ T356] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 34.738528][ T356] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 34.746342][ T356] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 356] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 356] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 356] exit_group(0) = ? [pid 356] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=356, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 357 ./strace-static-x86_64: Process 357 attached [pid 357] set_robust_list(0x5555572ea660, 24) = 0 [pid 357] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 357] setpgid(0, 0) = 0 [pid 357] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 357] write(3, "1000", 4) = 4 [pid 357] close(3) = 0 [pid 357] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 357] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 357] write(4, "76", 2) = 2 [pid 357] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [ 34.754150][ T356] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 34.761962][ T356] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 357] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 357] exit_group(0) = ? [pid 357] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=357, 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=0x5555572ea650) = 358 ./strace-static-x86_64: Process 358 attached [pid 358] set_robust_list(0x5555572ea660, 24) = 0 [pid 358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 358] setpgid(0, 0) = 0 [pid 358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 358] write(3, "1000", 4) = 4 [pid 358] close(3) = 0 [pid 358] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 358] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 358] write(4, "76", 2) = 2 [ 34.854635][ T358] FAULT_INJECTION: forcing a failure. [ 34.854635][ T358] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 34.867786][ T358] CPU: 1 PID: 358 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 34.877822][ T358] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 34.887716][ T358] Call Trace: [ 34.890847][ T358] dump_stack_lvl+0x1e2/0x24b [ 34.895355][ T358] ? bfq_pos_tree_add_move+0x43b/0x43b [ 34.900662][ T358] dump_stack+0x15/0x17 [ 34.904725][ T358] should_fail+0x3c6/0x510 [ 34.908985][ T358] should_fail_alloc_page+0x52/0x60 [ 34.914015][ T358] __alloc_pages_nodemask+0x1b3/0xaf0 [ 34.919223][ T358] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 34.924605][ T358] ? __kasan_check_write+0x14/0x20 [ 34.929552][ T358] ? _raw_spin_lock+0xa4/0x1b0 [ 34.934153][ T358] __get_free_pages+0xe/0x30 [ 34.938578][ T358] selinux_genfs_get_sid+0x56/0x2a0 [ 34.943613][ T358] ? lockref_get+0xb4/0x110 [ 34.947956][ T358] inode_doinit_with_dentry+0x86f/0x1050 [ 34.953422][ T358] ? sb_finish_set_opts+0x7a0/0x7a0 [ 34.958454][ T358] ? current_time+0x1af/0x2f0 [ 34.962966][ T358] selinux_d_instantiate+0x27/0x40 [ 34.967914][ T358] security_d_instantiate+0x9f/0x100 [ 34.973035][ T358] d_instantiate+0x55/0x90 [ 34.977388][ T358] __debugfs_create_file+0x2e6/0x4c0 [ 34.982516][ T358] debugfs_create_file+0x4a/0x60 [ 34.987274][ T358] bdi_register_va+0x2a6/0x610 [ 34.991953][ T358] bdi_register+0xd1/0x120 [ 34.996210][ T358] ? vsnprintf+0x1e1/0x1c70 [ 35.000547][ T358] ? __device_add_disk+0x552/0x11a0 [ 35.005581][ T358] ? bdi_register_va+0x610/0x610 [ 35.010357][ T358] ? __kasan_check_read+0x11/0x20 [ 35.015224][ T358] ? blk_alloc_devt+0xd7/0x330 [ 35.019821][ T358] __device_add_disk+0x5de/0x11a0 [ 35.024684][ T358] ? device_add_disk+0x40/0x40 [ 35.029283][ T358] ? vsprintf+0x40/0x40 [ 35.033269][ T358] ? device_initialize+0x1e1/0x420 [ 35.038218][ T358] device_add_disk+0x2a/0x40 [ 35.042641][ T358] loop_add+0x580/0x750 [ 35.046643][ T358] loop_control_ioctl+0x448/0x620 [ 35.051497][ T358] ? loop_remove+0xb0/0xb0 [ 35.055746][ T358] ? _raw_spin_unlock_irq+0x4e/0x70 [ 35.060787][ T358] ? ptrace_notify+0x24c/0x350 [ 35.065381][ T358] ? do_notify_parent+0xa10/0xa10 [ 35.070247][ T358] ? security_file_ioctl+0x84/0xb0 [ 35.075189][ T358] ? loop_remove+0xb0/0xb0 [ 35.079453][ T358] __se_sys_ioctl+0x114/0x190 [ 35.083956][ T358] __x64_sys_ioctl+0x7b/0x90 [ 35.088394][ T358] do_syscall_64+0x34/0x70 [ 35.092639][ T358] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 35.098366][ T358] RIP: 0033:0x7f4305d14d39 [ 35.102616][ T358] 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 [ 35.122058][ T358] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 35.130303][ T358] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 35.138121][ T358] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 35.145924][ T358] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 358] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 358] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 358] exit_group(0) = ? [pid 358] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=358, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 359 ./strace-static-x86_64: Process 359 attached [pid 359] set_robust_list(0x5555572ea660, 24) = 0 [pid 359] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 359] setpgid(0, 0) = 0 [pid 359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 359] write(3, "1000", 4) = 4 [pid 359] close(3) = 0 [pid 359] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 359] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 359] write(4, "76", 2) = 2 [pid 359] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [ 35.153736][ T358] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 35.161548][ T358] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 359] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 359] exit_group(0) = ? [pid 359] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=359, 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=0x5555572ea650) = 360 ./strace-static-x86_64: Process 360 attached [pid 360] set_robust_list(0x5555572ea660, 24) = 0 [pid 360] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 360] setpgid(0, 0) = 0 [pid 360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 360] write(3, "1000", 4) = 4 [pid 360] close(3) = 0 [pid 360] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 360] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 360] write(4, "76", 2) = 2 [ 35.252150][ T360] FAULT_INJECTION: forcing a failure. [ 35.252150][ T360] name failslab, interval 1, probability 0, space 0, times 0 [ 35.264602][ T360] CPU: 0 PID: 360 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 35.274613][ T360] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 35.284520][ T360] Call Trace: [ 35.287644][ T360] dump_stack_lvl+0x1e2/0x24b [ 35.292148][ T360] ? panic+0x80b/0x80b [ 35.296064][ T360] ? bfq_pos_tree_add_move+0x43b/0x43b [ 35.301350][ T360] ? __lookup_slow+0x2fe/0x400 [ 35.305948][ T360] dump_stack+0x15/0x17 [ 35.309948][ T360] should_fail+0x3c6/0x510 [ 35.314196][ T360] ? new_inode_pseudo+0x7c/0x220 [ 35.319057][ T360] __should_failslab+0xa4/0xe0 [ 35.323653][ T360] should_failslab+0x9/0x20 [ 35.327996][ T360] kmem_cache_alloc+0x3d/0x2e0 [ 35.332595][ T360] new_inode_pseudo+0x7c/0x220 [ 35.337194][ T360] new_inode+0x28/0x1c0 [ 35.341194][ T360] ? start_creating+0x1d4/0x2f0 [ 35.345881][ T360] __debugfs_create_file+0x14d/0x4c0 [ 35.350998][ T360] ? up_write+0x59/0x120 [ 35.355083][ T360] debugfs_create_file+0x4a/0x60 [ 35.359850][ T360] bdi_register_va+0x2a6/0x610 [ 35.364446][ T360] bdi_register+0xd1/0x120 [ 35.368701][ T360] ? vsnprintf+0x1e1/0x1c70 [ 35.373064][ T360] ? __device_add_disk+0x552/0x11a0 [ 35.378084][ T360] ? bdi_register_va+0x610/0x610 [ 35.382853][ T360] ? __kasan_check_read+0x11/0x20 [ 35.387709][ T360] ? blk_alloc_devt+0xd7/0x330 [ 35.392307][ T360] __device_add_disk+0x5de/0x11a0 [ 35.397177][ T360] ? device_add_disk+0x40/0x40 [ 35.401781][ T360] ? vsprintf+0x40/0x40 [ 35.405764][ T360] ? device_initialize+0x1e1/0x420 [ 35.410709][ T360] device_add_disk+0x2a/0x40 [ 35.415136][ T360] loop_add+0x580/0x750 [ 35.419147][ T360] loop_control_ioctl+0x448/0x620 [ 35.423988][ T360] ? loop_remove+0xb0/0xb0 [ 35.428242][ T360] ? _raw_spin_unlock_irq+0x4e/0x70 [ 35.433275][ T360] ? ptrace_notify+0x24c/0x350 [ 35.437897][ T360] ? do_notify_parent+0xa10/0xa10 [ 35.442748][ T360] ? security_file_ioctl+0x84/0xb0 [ 35.447728][ T360] ? loop_remove+0xb0/0xb0 [ 35.451941][ T360] __se_sys_ioctl+0x114/0x190 [ 35.456458][ T360] __x64_sys_ioctl+0x7b/0x90 [ 35.460878][ T360] do_syscall_64+0x34/0x70 [ 35.465128][ T360] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 35.470854][ T360] RIP: 0033:0x7f4305d14d39 [ 35.475111][ T360] 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 [ 35.494638][ T360] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [pid 360] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 360] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 360] exit_group(0) = ? [pid 360] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=360, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 362 ./strace-static-x86_64: Process 362 attached [pid 362] set_robust_list(0x5555572ea660, 24) = 0 [pid 362] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 362] setpgid(0, 0) = 0 [pid 362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 362] write(3, "1000", 4) = 4 [pid 362] close(3) = 0 [pid 362] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 362] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 362] write(4, "76", 2) = 2 [ 35.502891][ T360] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 35.510698][ T360] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 35.518504][ T360] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 35.526327][ T360] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 35.534129][ T360] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 35.542265][ T360] debugfs: out of free dentries, can not create file 'stats' [ 35.573089][ T362] FAULT_INJECTION: forcing a failure. [ 35.573089][ T362] name failslab, interval 1, probability 0, space 0, times 0 [ 35.585561][ T362] CPU: 0 PID: 362 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 35.595556][ T362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 35.605450][ T362] Call Trace: [ 35.608582][ T362] dump_stack_lvl+0x1e2/0x24b [ 35.613092][ T362] ? panic+0x80b/0x80b [ 35.616995][ T362] ? bfq_pos_tree_add_move+0x43b/0x43b [ 35.622301][ T362] dump_stack+0x15/0x17 [ 35.626297][ T362] should_fail+0x3c6/0x510 [ 35.630539][ T362] ? security_inode_alloc+0x29/0x120 [ 35.635660][ T362] __should_failslab+0xa4/0xe0 [ 35.640260][ T362] should_failslab+0x9/0x20 [ 35.644599][ T362] kmem_cache_alloc+0x3d/0x2e0 [ 35.649196][ T362] ? slab_post_alloc_hook+0x61/0x2f0 [ 35.654319][ T362] security_inode_alloc+0x29/0x120 [ 35.659267][ T362] inode_init_always+0x767/0x9f0 [ 35.664046][ T362] new_inode_pseudo+0x93/0x220 [ 35.668642][ T362] new_inode+0x28/0x1c0 [ 35.672630][ T362] ? start_creating+0x1d4/0x2f0 [ 35.677323][ T362] __debugfs_create_file+0x14d/0x4c0 [ 35.682442][ T362] ? up_write+0x59/0x120 [ 35.686522][ T362] debugfs_create_file+0x4a/0x60 [ 35.691299][ T362] bdi_register_va+0x2a6/0x610 [ 35.695905][ T362] bdi_register+0xd1/0x120 [ 35.700151][ T362] ? vsnprintf+0x1e1/0x1c70 [ 35.704484][ T362] ? __device_add_disk+0x552/0x11a0 [ 35.709605][ T362] ? bdi_register_va+0x610/0x610 [ 35.714377][ T362] ? __kasan_check_read+0x11/0x20 [ 35.719241][ T362] ? blk_alloc_devt+0xd7/0x330 [ 35.723840][ T362] __device_add_disk+0x5de/0x11a0 [ 35.728725][ T362] ? device_add_disk+0x40/0x40 [ 35.733306][ T362] ? vsprintf+0x40/0x40 [ 35.737302][ T362] ? device_initialize+0x1e1/0x420 [ 35.742289][ T362] device_add_disk+0x2a/0x40 [ 35.746675][ T362] loop_add+0x580/0x750 [ 35.750857][ T362] loop_control_ioctl+0x448/0x620 [ 35.755616][ T362] ? loop_remove+0xb0/0xb0 [ 35.759868][ T362] ? _raw_spin_unlock_irq+0x4e/0x70 [ 35.764896][ T362] ? ptrace_notify+0x24c/0x350 [ 35.769495][ T362] ? do_notify_parent+0xa10/0xa10 [ 35.774355][ T362] ? security_file_ioctl+0x84/0xb0 [ 35.779302][ T362] ? loop_remove+0xb0/0xb0 [ 35.783556][ T362] __se_sys_ioctl+0x114/0x190 [ 35.788069][ T362] __x64_sys_ioctl+0x7b/0x90 [ 35.792583][ T362] do_syscall_64+0x34/0x70 [ 35.796836][ T362] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 35.802561][ T362] RIP: 0033:0x7f4305d14d39 [ 35.806816][ T362] 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 [ 35.826257][ T362] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 35.834504][ T362] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 35.842315][ T362] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 35.850122][ T362] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 35.857934][ T362] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 35.865744][ T362] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 362] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 362] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 362] exit_group(0) = ? [pid 362] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=362, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 363 ./strace-static-x86_64: Process 363 attached [pid 363] set_robust_list(0x5555572ea660, 24) = 0 [pid 363] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 363] setpgid(0, 0) = 0 [pid 363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 363] write(3, "1000", 4) = 4 [pid 363] close(3) = 0 [pid 363] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 363] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 363] write(4, "76", 2) = 2 [ 35.873666][ T362] debugfs: out of free dentries, can not create file 'stats' [ 35.924193][ T363] FAULT_INJECTION: forcing a failure. [ 35.924193][ T363] name failslab, interval 1, probability 0, space 0, times 0 [ 35.936698][ T363] CPU: 0 PID: 363 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 35.946658][ T363] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 35.956551][ T363] Call Trace: [ 35.959686][ T363] dump_stack_lvl+0x1e2/0x24b [ 35.964205][ T363] ? panic+0x80b/0x80b [ 35.968096][ T363] ? bfq_pos_tree_add_move+0x43b/0x43b [ 35.973399][ T363] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 35.978276][ T363] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 35.983292][ T363] dump_stack+0x15/0x17 [ 35.987283][ T363] should_fail+0x3c6/0x510 [ 35.991531][ T363] ? kobj_map+0x64/0x670 [ 35.995610][ T363] __should_failslab+0xa4/0xe0 [ 36.000218][ T363] should_failslab+0x9/0x20 [ 36.004551][ T363] __kmalloc+0x60/0x330 [ 36.008554][ T363] ? __device_add_disk+0x552/0x11a0 [ 36.013575][ T363] kobj_map+0x64/0x670 [ 36.017480][ T363] ? kobject_get+0xd1/0x120 [ 36.021820][ T363] ? exact_match+0x20/0x20 [ 36.026081][ T363] ? bdev_check_media_change+0x4d0/0x4d0 [ 36.031543][ T363] __device_add_disk+0x67b/0x11a0 [ 36.036404][ T363] ? device_add_disk+0x40/0x40 [ 36.041090][ T363] ? vsprintf+0x40/0x40 [ 36.045082][ T363] ? device_initialize+0x1e1/0x420 [ 36.050036][ T363] device_add_disk+0x2a/0x40 [ 36.054455][ T363] loop_add+0x580/0x750 [ 36.058447][ T363] loop_control_ioctl+0x448/0x620 [ 36.063305][ T363] ? loop_remove+0xb0/0xb0 [ 36.067561][ T363] ? _raw_spin_unlock_irq+0x4e/0x70 [ 36.072594][ T363] ? ptrace_notify+0x24c/0x350 [ 36.077192][ T363] ? do_notify_parent+0xa10/0xa10 [ 36.082056][ T363] ? security_file_ioctl+0x84/0xb0 [ 36.087004][ T363] ? loop_remove+0xb0/0xb0 [ 36.091357][ T363] __se_sys_ioctl+0x114/0x190 [ 36.095853][ T363] __x64_sys_ioctl+0x7b/0x90 [ 36.100283][ T363] do_syscall_64+0x34/0x70 [ 36.104533][ T363] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 36.110264][ T363] RIP: 0033:0x7f4305d14d39 [pid 363] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 363] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [ 36.114517][ T363] 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 [ 36.133960][ T363] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 36.142205][ T363] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 36.150013][ T363] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 36.157824][ T363] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 36.165633][ T363] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [pid 363] exit_group(0) = ? [pid 363] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=363, 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=0x5555572ea650) = 364 ./strace-static-x86_64: Process 364 attached [pid 364] set_robust_list(0x5555572ea660, 24) = 0 [pid 364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 364] setpgid(0, 0) = 0 [pid 364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 364] write(3, "1000", 4) = 4 [pid 364] close(3) = 0 [pid 364] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 364] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 364] write(4, "76", 2) = 2 [pid 364] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 364] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 364] exit_group(0) = ? [pid 364] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=364, 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=0x5555572ea650) = 365 ./strace-static-x86_64: Process 365 attached [pid 365] set_robust_list(0x5555572ea660, 24) = 0 [pid 365] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 365] setpgid(0, 0) = 0 [pid 365] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 365] write(3, "1000", 4) = 4 [pid 365] close(3) = 0 [pid 365] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 365] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 365] write(4, "76", 2) = 2 [ 36.173447][ T363] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 36.236437][ T365] FAULT_INJECTION: forcing a failure. [ 36.236437][ T365] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 36.249497][ T365] CPU: 0 PID: 365 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 36.259504][ T365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 36.269396][ T365] Call Trace: [ 36.272530][ T365] dump_stack_lvl+0x1e2/0x24b [ 36.277039][ T365] ? bfq_pos_tree_add_move+0x43b/0x43b [ 36.282346][ T365] dump_stack+0x15/0x17 [ 36.286322][ T365] should_fail+0x3c6/0x510 [ 36.290579][ T365] should_fail_alloc_page+0x52/0x60 [ 36.295613][ T365] __alloc_pages_nodemask+0x1b3/0xaf0 [ 36.300822][ T365] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 36.306202][ T365] ? __kasan_check_write+0x14/0x20 [ 36.311149][ T365] ? _raw_spin_lock+0xa4/0x1b0 [ 36.315746][ T365] __get_free_pages+0xe/0x30 [ 36.320186][ T365] selinux_genfs_get_sid+0x56/0x2a0 [ 36.325295][ T365] ? lockref_get+0xb4/0x110 [ 36.329636][ T365] inode_doinit_with_dentry+0x86f/0x1050 [ 36.335113][ T365] ? sb_finish_set_opts+0x7a0/0x7a0 [ 36.340140][ T365] ? current_time+0x1af/0x2f0 [ 36.344648][ T365] selinux_d_instantiate+0x27/0x40 [ 36.349860][ T365] security_d_instantiate+0x9f/0x100 [ 36.354980][ T365] d_instantiate+0x55/0x90 [ 36.359232][ T365] __debugfs_create_file+0x2e6/0x4c0 [ 36.364351][ T365] debugfs_create_file+0x4a/0x60 [ 36.369126][ T365] bdi_register_va+0x2a6/0x610 [ 36.373813][ T365] bdi_register+0xd1/0x120 [ 36.378080][ T365] ? vsnprintf+0x1e1/0x1c70 [ 36.382406][ T365] ? __device_add_disk+0x552/0x11a0 [ 36.387439][ T365] ? bdi_register_va+0x610/0x610 [ 36.392215][ T365] ? __kasan_check_read+0x11/0x20 [ 36.397071][ T365] ? blk_alloc_devt+0xd7/0x330 [ 36.401671][ T365] __device_add_disk+0x5de/0x11a0 [ 36.406536][ T365] ? device_add_disk+0x40/0x40 [ 36.411133][ T365] ? vsprintf+0x40/0x40 [ 36.415138][ T365] ? device_initialize+0x1e1/0x420 [ 36.420074][ T365] device_add_disk+0x2a/0x40 [ 36.424498][ T365] loop_add+0x580/0x750 [ 36.428492][ T365] loop_control_ioctl+0x448/0x620 [ 36.433350][ T365] ? loop_remove+0xb0/0xb0 [ 36.437608][ T365] ? _raw_spin_unlock_irq+0x4e/0x70 [ 36.442644][ T365] ? ptrace_notify+0x24c/0x350 [ 36.447239][ T365] ? do_notify_parent+0xa10/0xa10 [ 36.452111][ T365] ? security_file_ioctl+0x84/0xb0 [ 36.457047][ T365] ? loop_remove+0xb0/0xb0 [ 36.461304][ T365] __se_sys_ioctl+0x114/0x190 [ 36.465813][ T365] __x64_sys_ioctl+0x7b/0x90 [ 36.470244][ T365] do_syscall_64+0x34/0x70 [ 36.474496][ T365] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 36.480224][ T365] RIP: 0033:0x7f4305d14d39 [ 36.484483][ T365] 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 [ 36.504187][ T365] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 36.512420][ T365] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 36.520232][ T365] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 36.528043][ T365] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 365] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 365] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 365] exit_group(0) = ? [pid 365] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=365, 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=0x5555572ea650) = 367 ./strace-static-x86_64: Process 367 attached [pid 367] set_robust_list(0x5555572ea660, 24) = 0 [pid 367] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 367] setpgid(0, 0) = 0 [pid 367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 367] write(3, "1000", 4) = 4 [pid 367] close(3) = 0 [pid 367] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 367] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 367] write(4, "76", 2) = 2 [ 36.535888][ T365] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 36.543670][ T365] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 36.572658][ T367] FAULT_INJECTION: forcing a failure. [ 36.572658][ T367] name failslab, interval 1, probability 0, space 0, times 0 [ 36.585146][ T367] CPU: 0 PID: 367 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 36.595148][ T367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 36.605153][ T367] Call Trace: [ 36.608286][ T367] dump_stack_lvl+0x1e2/0x24b [ 36.612791][ T367] ? panic+0x80b/0x80b [ 36.616699][ T367] ? bfq_pos_tree_add_move+0x43b/0x43b [ 36.621992][ T367] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 36.626855][ T367] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 36.631889][ T367] dump_stack+0x15/0x17 [ 36.635880][ T367] should_fail+0x3c6/0x510 [ 36.640134][ T367] ? kobj_map+0x64/0x670 [ 36.644215][ T367] __should_failslab+0xa4/0xe0 [ 36.648826][ T367] should_failslab+0x9/0x20 [ 36.653154][ T367] __kmalloc+0x60/0x330 [ 36.657155][ T367] ? __device_add_disk+0x552/0x11a0 [ 36.662179][ T367] kobj_map+0x64/0x670 [ 36.666084][ T367] ? kobject_get+0xd1/0x120 [ 36.670425][ T367] ? exact_match+0x20/0x20 [ 36.674676][ T367] ? bdev_check_media_change+0x4d0/0x4d0 [ 36.680146][ T367] __device_add_disk+0x67b/0x11a0 [ 36.685008][ T367] ? device_add_disk+0x40/0x40 [ 36.689612][ T367] ? vsprintf+0x40/0x40 [ 36.693607][ T367] ? device_initialize+0x1e1/0x420 [ 36.698547][ T367] device_add_disk+0x2a/0x40 [ 36.702968][ T367] loop_add+0x580/0x750 [ 36.706960][ T367] loop_control_ioctl+0x448/0x620 [ 36.711869][ T367] ? loop_remove+0xb0/0xb0 [ 36.716086][ T367] ? _raw_spin_unlock_irq+0x4e/0x70 [ 36.721138][ T367] ? ptrace_notify+0x24c/0x350 [ 36.725710][ T367] ? do_notify_parent+0xa10/0xa10 [ 36.730572][ T367] ? security_file_ioctl+0x84/0xb0 [ 36.735541][ T367] ? loop_remove+0xb0/0xb0 [ 36.739782][ T367] __se_sys_ioctl+0x114/0x190 [ 36.744290][ T367] __x64_sys_ioctl+0x7b/0x90 [ 36.748716][ T367] do_syscall_64+0x34/0x70 [ 36.752969][ T367] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 36.758695][ T367] RIP: 0033:0x7f4305d14d39 [ 36.762947][ T367] 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 [pid 367] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 367] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 367] exit_group(0) = ? [pid 367] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=367, 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=0x5555572ea650) = 368 ./strace-static-x86_64: Process 368 attached [pid 368] set_robust_list(0x5555572ea660, 24) = 0 [pid 368] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 368] setpgid(0, 0) = 0 [pid 368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 368] write(3, "1000", 4) = 4 [pid 368] close(3) = 0 [pid 368] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 368] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 368] write(4, "76", 2) = 2 [pid 368] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 368] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 368] exit_group(0) = ? [pid 368] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=368, 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=0x5555572ea650) = 369 ./strace-static-x86_64: Process 369 attached [pid 369] set_robust_list(0x5555572ea660, 24) = 0 [pid 369] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 369] setpgid(0, 0) = 0 [pid 369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 369] write(3, "1000", 4) = 4 [pid 369] close(3) = 0 [pid 369] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 369] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 369] write(4, "76", 2) = 2 [ 36.782387][ T367] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 36.790628][ T367] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 36.798444][ T367] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 36.806253][ T367] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 36.814063][ T367] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 36.821877][ T367] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 36.874397][ T369] FAULT_INJECTION: forcing a failure. [ 36.874397][ T369] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 36.887600][ T369] CPU: 1 PID: 369 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 36.897557][ T369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 36.907469][ T369] Call Trace: [ 36.910584][ T369] dump_stack_lvl+0x1e2/0x24b [ 36.915095][ T369] ? bfq_pos_tree_add_move+0x43b/0x43b [ 36.920395][ T369] dump_stack+0x15/0x17 [ 36.924386][ T369] should_fail+0x3c6/0x510 [ 36.928633][ T369] should_fail_alloc_page+0x52/0x60 [ 36.933674][ T369] __alloc_pages_nodemask+0x1b3/0xaf0 [ 36.938873][ T369] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 36.944275][ T369] ? __kasan_check_write+0x14/0x20 [ 36.949211][ T369] ? _raw_spin_lock+0xa4/0x1b0 [ 36.953817][ T369] __get_free_pages+0xe/0x30 [ 36.958230][ T369] selinux_genfs_get_sid+0x56/0x2a0 [ 36.963263][ T369] ? lockref_get+0xb4/0x110 [ 36.967610][ T369] inode_doinit_with_dentry+0x86f/0x1050 [ 36.973071][ T369] ? sb_finish_set_opts+0x7a0/0x7a0 [ 36.978110][ T369] ? current_time+0x1af/0x2f0 [ 36.982643][ T369] selinux_d_instantiate+0x27/0x40 [ 36.987566][ T369] security_d_instantiate+0x9f/0x100 [ 36.992683][ T369] d_instantiate+0x55/0x90 [ 36.996936][ T369] __debugfs_create_file+0x2e6/0x4c0 [ 37.002065][ T369] debugfs_create_file+0x4a/0x60 [ 37.006831][ T369] bdi_register_va+0x2a6/0x610 [ 37.011432][ T369] bdi_register+0xd1/0x120 [ 37.015703][ T369] ? vsnprintf+0x1e1/0x1c70 [ 37.020024][ T369] ? __device_add_disk+0x552/0x11a0 [ 37.025057][ T369] ? bdi_register_va+0x610/0x610 [ 37.029836][ T369] ? __kasan_check_read+0x11/0x20 [ 37.034700][ T369] ? blk_alloc_devt+0xd7/0x330 [ 37.039303][ T369] __device_add_disk+0x5de/0x11a0 [ 37.044155][ T369] ? device_add_disk+0x40/0x40 [ 37.048750][ T369] ? vsprintf+0x40/0x40 [ 37.052748][ T369] ? device_initialize+0x1e1/0x420 [ 37.057692][ T369] device_add_disk+0x2a/0x40 [ 37.062118][ T369] loop_add+0x580/0x750 [ 37.066110][ T369] loop_control_ioctl+0x448/0x620 [ 37.070970][ T369] ? loop_remove+0xb0/0xb0 [ 37.075228][ T369] ? _raw_spin_unlock_irq+0x4e/0x70 [ 37.080263][ T369] ? ptrace_notify+0x24c/0x350 [ 37.084865][ T369] ? do_notify_parent+0xa10/0xa10 [ 37.089721][ T369] ? security_file_ioctl+0x84/0xb0 [ 37.094666][ T369] ? loop_remove+0xb0/0xb0 [ 37.098919][ T369] __se_sys_ioctl+0x114/0x190 [ 37.103432][ T369] __x64_sys_ioctl+0x7b/0x90 [ 37.107858][ T369] do_syscall_64+0x34/0x70 [ 37.112115][ T369] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 37.117931][ T369] RIP: 0033:0x7f4305d14d39 [ 37.122180][ T369] 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 [ 37.141633][ T369] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 37.149870][ T369] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 37.157677][ T369] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 37.165493][ T369] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 369] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 369] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 369] exit_group(0) = ? [pid 369] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=369, 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=0x5555572ea650) = 370 ./strace-static-x86_64: Process 370 attached [pid 370] set_robust_list(0x5555572ea660, 24) = 0 [pid 370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 370] setpgid(0, 0) = 0 [pid 370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 370] write(3, "1000", 4) = 4 [pid 370] close(3) = 0 [pid 370] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 370] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 370] write(4, "76", 2) = 2 [pid 370] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 370] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 370] exit_group(0) = ? [pid 370] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=370, 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=0x5555572ea650) = 371 ./strace-static-x86_64: Process 371 attached [pid 371] set_robust_list(0x5555572ea660, 24) = 0 [pid 371] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 371] setpgid(0, 0) = 0 [pid 371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 371] write(3, "1000", 4) = 4 [pid 371] close(3) = 0 [pid 371] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 371] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 371] write(4, "76", 2) = 2 [ 37.173303][ T369] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 37.181111][ T369] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 37.223684][ T371] FAULT_INJECTION: forcing a failure. [ 37.223684][ T371] name failslab, interval 1, probability 0, space 0, times 0 [ 37.236195][ T371] CPU: 0 PID: 371 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 37.246149][ T371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 37.256044][ T371] Call Trace: [ 37.259175][ T371] dump_stack_lvl+0x1e2/0x24b [ 37.263683][ T371] ? panic+0x80b/0x80b [ 37.267590][ T371] ? bfq_pos_tree_add_move+0x43b/0x43b [ 37.272880][ T371] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 37.277741][ T371] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 37.282776][ T371] dump_stack+0x15/0x17 [ 37.286769][ T371] should_fail+0x3c6/0x510 [ 37.291454][ T371] ? kobj_map+0x64/0x670 [ 37.295534][ T371] __should_failslab+0xa4/0xe0 [ 37.300134][ T371] should_failslab+0x9/0x20 [ 37.304473][ T371] __kmalloc+0x60/0x330 [ 37.308475][ T371] ? __device_add_disk+0x552/0x11a0 [ 37.313499][ T371] kobj_map+0x64/0x670 [ 37.317404][ T371] ? kobject_get+0xd1/0x120 [ 37.321746][ T371] ? exact_match+0x20/0x20 [ 37.326006][ T371] ? bdev_check_media_change+0x4d0/0x4d0 [ 37.331468][ T371] __device_add_disk+0x67b/0x11a0 [ 37.336331][ T371] ? device_add_disk+0x40/0x40 [ 37.340927][ T371] ? vsprintf+0x40/0x40 [ 37.344920][ T371] ? device_initialize+0x1e1/0x420 [ 37.349869][ T371] device_add_disk+0x2a/0x40 [ 37.354292][ T371] loop_add+0x580/0x750 [ 37.358287][ T371] loop_control_ioctl+0x448/0x620 [ 37.363143][ T371] ? loop_remove+0xb0/0xb0 [ 37.367400][ T371] ? _raw_spin_unlock_irq+0x4e/0x70 [ 37.372434][ T371] ? ptrace_notify+0x24c/0x350 [ 37.377031][ T371] ? do_notify_parent+0xa10/0xa10 [ 37.381896][ T371] ? security_file_ioctl+0x84/0xb0 [ 37.386849][ T371] ? loop_remove+0xb0/0xb0 [ 37.391091][ T371] __se_sys_ioctl+0x114/0x190 [ 37.395606][ T371] __x64_sys_ioctl+0x7b/0x90 [ 37.400034][ T371] do_syscall_64+0x34/0x70 [ 37.404296][ T371] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 37.410020][ T371] RIP: 0033:0x7f4305d14d39 [pid 371] ioctl(3, LOOP_CTL_ADD, 11) = 11 [ 37.414272][ T371] 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 [ 37.433709][ T371] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 37.441953][ T371] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 37.449765][ T371] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 37.457578][ T371] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 37.465395][ T371] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [pid 371] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 371] exit_group(0) = ? [pid 371] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=371, 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 372 attached , child_tidptr=0x5555572ea650) = 372 [pid 372] set_robust_list(0x5555572ea660, 24) = 0 [pid 372] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 372] setpgid(0, 0) = 0 [pid 372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 372] write(3, "1000", 4) = 4 [pid 372] close(3) = 0 [pid 372] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 372] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 372] write(4, "76", 2) = 2 [pid 372] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 372] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 372] exit_group(0) = ? [pid 372] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=372, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 373 ./strace-static-x86_64: Process 373 attached [pid 373] set_robust_list(0x5555572ea660, 24) = 0 [pid 373] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 373] setpgid(0, 0) = 0 [pid 373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 373] write(3, "1000", 4) = 4 [pid 373] close(3) = 0 [pid 373] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 373] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 373] write(4, "76", 2) = 2 [ 37.473195][ T371] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 37.544473][ T373] FAULT_INJECTION: forcing a failure. [ 37.544473][ T373] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 37.557668][ T373] CPU: 0 PID: 373 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 37.567635][ T373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 37.577526][ T373] Call Trace: [ 37.580659][ T373] dump_stack_lvl+0x1e2/0x24b [ 37.585168][ T373] ? bfq_pos_tree_add_move+0x43b/0x43b [ 37.590472][ T373] dump_stack+0x15/0x17 [ 37.594455][ T373] should_fail+0x3c6/0x510 [ 37.598721][ T373] should_fail_alloc_page+0x52/0x60 [ 37.603754][ T373] __alloc_pages_nodemask+0x1b3/0xaf0 [ 37.608953][ T373] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 37.614334][ T373] ? __kasan_check_write+0x14/0x20 [ 37.619279][ T373] ? _raw_spin_lock+0xa4/0x1b0 [ 37.623878][ T373] __get_free_pages+0xe/0x30 [ 37.628305][ T373] selinux_genfs_get_sid+0x56/0x2a0 [ 37.633339][ T373] ? lockref_get+0xb4/0x110 [ 37.637680][ T373] inode_doinit_with_dentry+0x86f/0x1050 [ 37.643169][ T373] ? sb_finish_set_opts+0x7a0/0x7a0 [ 37.648182][ T373] ? current_time+0x1af/0x2f0 [ 37.652702][ T373] selinux_d_instantiate+0x27/0x40 [ 37.657644][ T373] security_d_instantiate+0x9f/0x100 [ 37.662936][ T373] d_instantiate+0x55/0x90 [ 37.667195][ T373] __debugfs_create_file+0x2e6/0x4c0 [ 37.672312][ T373] debugfs_create_file+0x4a/0x60 [ 37.677085][ T373] bdi_register_va+0x2a6/0x610 [ 37.681684][ T373] bdi_register+0xd1/0x120 [ 37.685934][ T373] ? vsnprintf+0x1e1/0x1c70 [ 37.690279][ T373] ? __device_add_disk+0x552/0x11a0 [ 37.695309][ T373] ? bdi_register_va+0x610/0x610 [ 37.700083][ T373] ? __kasan_check_read+0x11/0x20 [ 37.704941][ T373] ? blk_alloc_devt+0xd7/0x330 [ 37.709542][ T373] __device_add_disk+0x5de/0x11a0 [ 37.714405][ T373] ? device_add_disk+0x40/0x40 [ 37.719003][ T373] ? vsprintf+0x40/0x40 [ 37.723004][ T373] ? device_initialize+0x1e1/0x420 [ 37.727942][ T373] device_add_disk+0x2a/0x40 [ 37.732367][ T373] loop_add+0x580/0x750 [ 37.736362][ T373] loop_control_ioctl+0x448/0x620 [ 37.741221][ T373] ? loop_remove+0xb0/0xb0 [ 37.745477][ T373] ? asm_common_interrupt+0x1e/0x40 [ 37.750513][ T373] ? loop_remove+0xb0/0xb0 [ 37.754774][ T373] ? do_vfs_ioctl+0xf6/0x1a30 [ 37.759277][ T373] ? __se_sys_ioctl+0x108/0x190 [ 37.763961][ T373] ? loop_remove+0xb0/0xb0 [ 37.768215][ T373] __se_sys_ioctl+0x114/0x190 [ 37.772736][ T373] __x64_sys_ioctl+0x7b/0x90 [ 37.777155][ T373] do_syscall_64+0x34/0x70 [ 37.781408][ T373] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 37.787134][ T373] RIP: 0033:0x7f4305d14d39 [ 37.791390][ T373] 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 [ 37.810834][ T373] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 37.819078][ T373] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 37.826884][ T373] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 37.834696][ T373] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 373] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 373] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 373] exit_group(0) = ? [pid 373] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=373, 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=0x5555572ea650) = 375 ./strace-static-x86_64: Process 375 attached [pid 375] set_robust_list(0x5555572ea660, 24) = 0 [pid 375] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 375] setpgid(0, 0) = 0 [pid 375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 375] write(3, "1000", 4) = 4 [pid 375] close(3) = 0 [pid 375] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 375] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 375] write(4, "76", 2) = 2 [pid 375] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 375] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [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=0} --- 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 [pid 376] set_robust_list(0x5555572ea660, 24) = 0 [pid 376] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 289] <... clone resumed>, child_tidptr=0x5555572ea650) = 376 [pid 376] <... prctl resumed>) = 0 [pid 376] setpgid(0, 0) = 0 [pid 376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 376] write(3, "1000", 4) = 4 [pid 376] close(3) = 0 [pid 376] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 376] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 376] write(4, "76", 2) = 2 [ 37.842509][ T373] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 37.850321][ T373] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 37.884207][ T376] FAULT_INJECTION: forcing a failure. [ 37.884207][ T376] name failslab, interval 1, probability 0, space 0, times 0 [ 37.896870][ T376] CPU: 0 PID: 376 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 37.906908][ T376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 37.916809][ T376] Call Trace: [ 37.919934][ T376] dump_stack_lvl+0x1e2/0x24b [ 37.924442][ T376] ? panic+0x80b/0x80b [ 37.928345][ T376] ? bfq_pos_tree_add_move+0x43b/0x43b [ 37.933646][ T376] dump_stack+0x15/0x17 [ 37.937636][ T376] should_fail+0x3c6/0x510 [ 37.941886][ T376] ? security_inode_alloc+0x29/0x120 [ 37.947008][ T376] __should_failslab+0xa4/0xe0 [ 37.951617][ T376] should_failslab+0x9/0x20 [ 37.955945][ T376] kmem_cache_alloc+0x3d/0x2e0 [ 37.960552][ T376] ? slab_post_alloc_hook+0x61/0x2f0 [ 37.965668][ T376] security_inode_alloc+0x29/0x120 [ 37.970619][ T376] inode_init_always+0x767/0x9f0 [ 37.975390][ T376] new_inode_pseudo+0x93/0x220 [ 37.979987][ T376] new_inode+0x28/0x1c0 [ 37.983980][ T376] ? start_creating+0x1d4/0x2f0 [ 37.988665][ T376] __debugfs_create_file+0x14d/0x4c0 [ 37.993788][ T376] ? up_write+0x59/0x120 [ 37.997872][ T376] debugfs_create_file+0x4a/0x60 [ 38.002640][ T376] bdi_register_va+0x2a6/0x610 [ 38.007239][ T376] bdi_register+0xd1/0x120 [ 38.011495][ T376] ? vsnprintf+0x1e1/0x1c70 [ 38.015833][ T376] ? __device_add_disk+0x552/0x11a0 [ 38.020866][ T376] ? bdi_register_va+0x610/0x610 [ 38.025642][ T376] ? __kasan_check_read+0x11/0x20 [ 38.030499][ T376] ? blk_alloc_devt+0xd7/0x330 [ 38.035098][ T376] __device_add_disk+0x5de/0x11a0 [ 38.039961][ T376] ? device_add_disk+0x40/0x40 [ 38.044560][ T376] ? vsprintf+0x40/0x40 [ 38.048559][ T376] ? device_initialize+0x1e1/0x420 [ 38.053499][ T376] device_add_disk+0x2a/0x40 [ 38.057927][ T376] loop_add+0x580/0x750 [ 38.061918][ T376] loop_control_ioctl+0x448/0x620 [ 38.066781][ T376] ? loop_remove+0xb0/0xb0 [ 38.071033][ T376] ? _raw_spin_unlock_irq+0x4e/0x70 [ 38.076068][ T376] ? ptrace_notify+0x24c/0x350 [ 38.080673][ T376] ? do_notify_parent+0xa10/0xa10 [ 38.085532][ T376] ? security_file_ioctl+0x84/0xb0 [ 38.090477][ T376] ? loop_remove+0xb0/0xb0 [ 38.094729][ T376] __se_sys_ioctl+0x114/0x190 [ 38.099244][ T376] __x64_sys_ioctl+0x7b/0x90 [ 38.103669][ T376] do_syscall_64+0x34/0x70 [ 38.107934][ T376] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 38.113648][ T376] RIP: 0033:0x7f4305d14d39 [ 38.117904][ T376] 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 [ 38.137346][ T376] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [pid 376] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 376] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [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=2} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 377 ./strace-static-x86_64: Process 377 attached [pid 377] set_robust_list(0x5555572ea660, 24) = 0 [pid 377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 377] setpgid(0, 0) = 0 [pid 377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 377] write(3, "1000", 4) = 4 [pid 377] close(3) = 0 [pid 377] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 377] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 377] write(4, "76", 2) = 2 [pid 377] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 377] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [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=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 378 ./strace-static-x86_64: Process 378 attached [pid 378] set_robust_list(0x5555572ea660, 24) = 0 [pid 378] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 378] setpgid(0, 0) = 0 [pid 378] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 378] write(3, "1000", 4) = 4 [pid 378] close(3) = 0 [pid 378] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 378] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 378] write(4, "76", 2) = 2 [ 38.145587][ T376] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 38.153400][ T376] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 38.161209][ T376] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 38.169024][ T376] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 38.176836][ T376] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 38.184941][ T376] debugfs: out of free dentries, can not create file 'stats' [ 38.234270][ T378] FAULT_INJECTION: forcing a failure. [ 38.234270][ T378] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 38.247437][ T378] CPU: 0 PID: 378 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 38.257462][ T378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 38.267360][ T378] Call Trace: [ 38.270493][ T378] dump_stack_lvl+0x1e2/0x24b [ 38.274998][ T378] ? bfq_pos_tree_add_move+0x43b/0x43b [ 38.280307][ T378] dump_stack+0x15/0x17 [ 38.284286][ T378] should_fail+0x3c6/0x510 [ 38.288550][ T378] should_fail_alloc_page+0x52/0x60 [ 38.293572][ T378] __alloc_pages_nodemask+0x1b3/0xaf0 [ 38.298785][ T378] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 38.304162][ T378] ? __kasan_check_write+0x14/0x20 [ 38.309108][ T378] ? _raw_spin_lock+0xa4/0x1b0 [ 38.313709][ T378] __get_free_pages+0xe/0x30 [ 38.318134][ T378] selinux_genfs_get_sid+0x56/0x2a0 [ 38.323167][ T378] ? lockref_get+0xb4/0x110 [ 38.327509][ T378] inode_doinit_with_dentry+0x86f/0x1050 [ 38.332984][ T378] ? sb_finish_set_opts+0x7a0/0x7a0 [ 38.338008][ T378] ? current_time+0x1af/0x2f0 [ 38.342523][ T378] selinux_d_instantiate+0x27/0x40 [ 38.347469][ T378] security_d_instantiate+0x9f/0x100 [ 38.352610][ T378] d_instantiate+0x55/0x90 [ 38.357016][ T378] __debugfs_create_file+0x2e6/0x4c0 [ 38.362153][ T378] debugfs_create_file+0x4a/0x60 [ 38.366914][ T378] bdi_register_va+0x2a6/0x610 [ 38.371520][ T378] bdi_register+0xd1/0x120 [ 38.375763][ T378] ? vsnprintf+0x1e1/0x1c70 [ 38.380103][ T378] ? __device_add_disk+0x552/0x11a0 [ 38.385137][ T378] ? bdi_register_va+0x610/0x610 [ 38.389911][ T378] ? __kasan_check_read+0x11/0x20 [ 38.394776][ T378] ? blk_alloc_devt+0xd7/0x330 [ 38.399377][ T378] __device_add_disk+0x5de/0x11a0 [ 38.404242][ T378] ? device_add_disk+0x40/0x40 [ 38.408840][ T378] ? vsprintf+0x40/0x40 [ 38.412828][ T378] ? device_initialize+0x1e1/0x420 [ 38.417774][ T378] device_add_disk+0x2a/0x40 [ 38.422208][ T378] loop_add+0x580/0x750 [ 38.426194][ T378] loop_control_ioctl+0x448/0x620 [ 38.431058][ T378] ? loop_remove+0xb0/0xb0 [ 38.435307][ T378] ? _raw_spin_unlock_irq+0x4e/0x70 [ 38.440348][ T378] ? ptrace_notify+0x24c/0x350 [ 38.444943][ T378] ? do_notify_parent+0xa10/0xa10 [ 38.449811][ T378] ? security_file_ioctl+0x84/0xb0 [ 38.454745][ T378] ? loop_remove+0xb0/0xb0 [ 38.458999][ T378] __se_sys_ioctl+0x114/0x190 [ 38.463515][ T378] __x64_sys_ioctl+0x7b/0x90 [ 38.467941][ T378] do_syscall_64+0x34/0x70 [ 38.472195][ T378] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 38.477919][ T378] RIP: 0033:0x7f4305d14d39 [ 38.482175][ T378] 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 [ 38.501716][ T378] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 38.509944][ T378] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 38.517757][ T378] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 38.525567][ T378] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 378] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 378] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [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=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 380 ./strace-static-x86_64: Process 380 attached [pid 380] set_robust_list(0x5555572ea660, 24) = 0 [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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 380] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 380] write(4, "76", 2) = 2 [ 38.533384][ T378] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 38.541192][ T378] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 38.584931][ T380] FAULT_INJECTION: forcing a failure. [ 38.584931][ T380] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 38.598094][ T380] CPU: 0 PID: 380 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 38.608132][ T380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 38.618021][ T380] Call Trace: [ 38.621155][ T380] dump_stack_lvl+0x1e2/0x24b [ 38.625666][ T380] ? bfq_pos_tree_add_move+0x43b/0x43b [ 38.630960][ T380] dump_stack+0x15/0x17 [ 38.634952][ T380] should_fail+0x3c6/0x510 [ 38.639207][ T380] should_fail_alloc_page+0x52/0x60 [ 38.644240][ T380] __alloc_pages_nodemask+0x1b3/0xaf0 [ 38.649459][ T380] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 38.654828][ T380] ? __kasan_check_write+0x14/0x20 [ 38.659775][ T380] ? _raw_spin_lock+0xa4/0x1b0 [ 38.664388][ T380] __get_free_pages+0xe/0x30 [ 38.668804][ T380] selinux_genfs_get_sid+0x56/0x2a0 [ 38.673839][ T380] ? lockref_get+0xb4/0x110 [ 38.678180][ T380] inode_doinit_with_dentry+0x86f/0x1050 [ 38.683645][ T380] ? sb_finish_set_opts+0x7a0/0x7a0 [ 38.688678][ T380] ? current_time+0x1af/0x2f0 [ 38.693189][ T380] selinux_d_instantiate+0x27/0x40 [ 38.698150][ T380] security_d_instantiate+0x9f/0x100 [ 38.703264][ T380] d_instantiate+0x55/0x90 [ 38.707516][ T380] __debugfs_create_file+0x2e6/0x4c0 [ 38.712644][ T380] debugfs_create_file+0x4a/0x60 [ 38.717429][ T380] bdi_register_va+0x2a6/0x610 [ 38.722023][ T380] bdi_register+0xd1/0x120 [ 38.726260][ T380] ? vsnprintf+0x1e1/0x1c70 [ 38.730602][ T380] ? __device_add_disk+0x552/0x11a0 [ 38.735634][ T380] ? bdi_register_va+0x610/0x610 [ 38.740409][ T380] ? __kasan_check_read+0x11/0x20 [ 38.745266][ T380] ? blk_alloc_devt+0xd7/0x330 [ 38.749869][ T380] __device_add_disk+0x5de/0x11a0 [ 38.754728][ T380] ? device_add_disk+0x40/0x40 [ 38.759386][ T380] ? vsprintf+0x40/0x40 [ 38.763333][ T380] ? device_initialize+0x1e1/0x420 [ 38.768274][ T380] device_add_disk+0x2a/0x40 [ 38.772699][ T380] loop_add+0x580/0x750 [ 38.776688][ T380] loop_control_ioctl+0x448/0x620 [ 38.781545][ T380] ? loop_remove+0xb0/0xb0 [ 38.785801][ T380] ? _raw_spin_unlock_irq+0x4e/0x70 [ 38.790844][ T380] ? ptrace_notify+0x24c/0x350 [ 38.795435][ T380] ? do_notify_parent+0xa10/0xa10 [ 38.800296][ T380] ? security_file_ioctl+0x84/0xb0 [ 38.805247][ T380] ? loop_remove+0xb0/0xb0 [ 38.809496][ T380] __se_sys_ioctl+0x114/0x190 [ 38.814008][ T380] __x64_sys_ioctl+0x7b/0x90 [ 38.818444][ T380] do_syscall_64+0x34/0x70 [ 38.822844][ T380] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 38.828529][ T380] RIP: 0033:0x7f4305d14d39 [ 38.832797][ T380] 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 [ 38.852233][ T380] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 38.860465][ T380] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 38.868275][ T380] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 38.876087][ T380] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 380] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 380] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [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=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 381 ./strace-static-x86_64: Process 381 attached [pid 381] set_robust_list(0x5555572ea660, 24) = 0 [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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 381] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 381] write(4, "76", 2) = 2 [pid 381] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 381] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [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=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 382 ./strace-static-x86_64: Process 382 attached [pid 382] set_robust_list(0x5555572ea660, 24) = 0 [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] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 382] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 382] write(4, "76", 2) = 2 [ 38.883900][ T380] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 38.891708][ T380] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 38.935619][ T382] FAULT_INJECTION: forcing a failure. [ 38.935619][ T382] name failslab, interval 1, probability 0, space 0, times 0 [ 38.948175][ T382] CPU: 0 PID: 382 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 38.958170][ T382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 38.968061][ T382] Call Trace: [ 38.971195][ T382] dump_stack_lvl+0x1e2/0x24b [ 38.975705][ T382] ? panic+0x80b/0x80b [ 38.979609][ T382] ? bfq_pos_tree_add_move+0x43b/0x43b [ 38.984904][ T382] dump_stack+0x15/0x17 [ 38.988899][ T382] should_fail+0x3c6/0x510 [ 38.993156][ T382] ? security_inode_alloc+0x29/0x120 [ 38.998278][ T382] __should_failslab+0xa4/0xe0 [ 39.002868][ T382] should_failslab+0x9/0x20 [ 39.007211][ T382] kmem_cache_alloc+0x3d/0x2e0 [ 39.011817][ T382] ? slab_post_alloc_hook+0x61/0x2f0 [ 39.016936][ T382] security_inode_alloc+0x29/0x120 [ 39.021880][ T382] inode_init_always+0x767/0x9f0 [ 39.026651][ T382] new_inode_pseudo+0x93/0x220 [ 39.031252][ T382] new_inode+0x28/0x1c0 [ 39.035245][ T382] ? start_creating+0x1d4/0x2f0 [ 39.039933][ T382] __debugfs_create_file+0x14d/0x4c0 [ 39.045054][ T382] ? up_write+0x59/0x120 [ 39.049135][ T382] debugfs_create_file+0x4a/0x60 [ 39.053908][ T382] bdi_register_va+0x2a6/0x610 [ 39.058512][ T382] bdi_register+0xd1/0x120 [ 39.062783][ T382] ? vsnprintf+0x1e1/0x1c70 [ 39.067102][ T382] ? __device_add_disk+0x552/0x11a0 [ 39.072134][ T382] ? bdi_register_va+0x610/0x610 [ 39.076911][ T382] ? __kasan_check_read+0x11/0x20 [ 39.081768][ T382] ? blk_alloc_devt+0xd7/0x330 [ 39.086370][ T382] __device_add_disk+0x5de/0x11a0 [ 39.091241][ T382] ? device_add_disk+0x40/0x40 [ 39.095838][ T382] ? vsprintf+0x40/0x40 [ 39.099821][ T382] ? device_initialize+0x1e1/0x420 [ 39.104778][ T382] device_add_disk+0x2a/0x40 [ 39.109193][ T382] loop_add+0x580/0x750 [ 39.113185][ T382] loop_control_ioctl+0x448/0x620 [ 39.118054][ T382] ? loop_remove+0xb0/0xb0 [ 39.122300][ T382] ? _raw_spin_unlock_irq+0x4e/0x70 [ 39.127340][ T382] ? ptrace_notify+0x24c/0x350 [ 39.131943][ T382] ? do_notify_parent+0xa10/0xa10 [ 39.136795][ T382] ? security_file_ioctl+0x84/0xb0 [ 39.141741][ T382] ? loop_remove+0xb0/0xb0 [ 39.145993][ T382] __se_sys_ioctl+0x114/0x190 [ 39.150508][ T382] __x64_sys_ioctl+0x7b/0x90 [ 39.154936][ T382] do_syscall_64+0x34/0x70 [ 39.159190][ T382] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 39.164913][ T382] RIP: 0033:0x7f4305d14d39 [pid 382] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 382] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [ 39.169168][ T382] 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 [ 39.188609][ T382] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 39.196856][ T382] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 39.204685][ T382] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 39.212476][ T382] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 39.220548][ T382] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 39.228358][ T382] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 382] exit_group(0) = ? [pid 382] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=382, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 383 ./strace-static-x86_64: Process 383 attached [pid 383] set_robust_list(0x5555572ea660, 24) = 0 [pid 383] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 383] setpgid(0, 0) = 0 [pid 383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 383] write(3, "1000", 4) = 4 [pid 383] close(3) = 0 [pid 383] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 383] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 383] write(4, "76", 2) = 2 [pid 383] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 383] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 383] exit_group(0) = ? [pid 383] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=383, 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=0x5555572ea650) = 384 ./strace-static-x86_64: Process 384 attached [pid 384] set_robust_list(0x5555572ea660, 24) = 0 [pid 384] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 384] setpgid(0, 0) = 0 [pid 384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 384] write(3, "1000", 4) = 4 [pid 384] close(3) = 0 [pid 384] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 384] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 384] write(4, "76", 2) = 2 [ 39.236249][ T382] debugfs: out of free dentries, can not create file 'stats' [ 39.286280][ T384] FAULT_INJECTION: forcing a failure. [ 39.286280][ T384] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 39.299354][ T384] CPU: 0 PID: 384 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 39.309344][ T384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 39.319242][ T384] Call Trace: [ 39.322373][ T384] dump_stack_lvl+0x1e2/0x24b [ 39.326883][ T384] ? bfq_pos_tree_add_move+0x43b/0x43b [ 39.332177][ T384] dump_stack+0x15/0x17 [ 39.336169][ T384] should_fail+0x3c6/0x510 [ 39.340423][ T384] should_fail_alloc_page+0x52/0x60 [ 39.345462][ T384] __alloc_pages_nodemask+0x1b3/0xaf0 [ 39.350662][ T384] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 39.356057][ T384] ? __kasan_check_write+0x14/0x20 [ 39.360990][ T384] ? _raw_spin_lock+0xa4/0x1b0 [ 39.365593][ T384] __get_free_pages+0xe/0x30 [ 39.370032][ T384] selinux_genfs_get_sid+0x56/0x2a0 [ 39.375050][ T384] ? lockref_get+0xb4/0x110 [ 39.379392][ T384] inode_doinit_with_dentry+0x86f/0x1050 [ 39.384859][ T384] ? sb_finish_set_opts+0x7a0/0x7a0 [ 39.389894][ T384] ? current_time+0x1af/0x2f0 [ 39.394406][ T384] selinux_d_instantiate+0x27/0x40 [ 39.399360][ T384] security_d_instantiate+0x9f/0x100 [ 39.404473][ T384] d_instantiate+0x55/0x90 [ 39.408737][ T384] __debugfs_create_file+0x2e6/0x4c0 [ 39.413852][ T384] debugfs_create_file+0x4a/0x60 [ 39.418632][ T384] bdi_register_va+0x2a6/0x610 [ 39.423232][ T384] bdi_register+0xd1/0x120 [ 39.427475][ T384] ? vsnprintf+0x1e1/0x1c70 [ 39.431824][ T384] ? __device_add_disk+0x552/0x11a0 [ 39.436846][ T384] ? bdi_register_va+0x610/0x610 [ 39.441622][ T384] ? __kasan_check_read+0x11/0x20 [ 39.446482][ T384] ? blk_alloc_devt+0xd7/0x330 [ 39.451080][ T384] __device_add_disk+0x5de/0x11a0 [ 39.455941][ T384] ? device_add_disk+0x40/0x40 [ 39.460541][ T384] ? vsprintf+0x40/0x40 [ 39.464538][ T384] ? device_initialize+0x1e1/0x420 [ 39.469493][ T384] device_add_disk+0x2a/0x40 [ 39.473907][ T384] loop_add+0x580/0x750 [ 39.477902][ T384] loop_control_ioctl+0x448/0x620 [ 39.482761][ T384] ? loop_remove+0xb0/0xb0 [ 39.487012][ T384] ? _raw_spin_unlock_irq+0x4e/0x70 [ 39.492050][ T384] ? ptrace_notify+0x24c/0x350 [ 39.496649][ T384] ? do_notify_parent+0xa10/0xa10 [ 39.501510][ T384] ? security_file_ioctl+0x84/0xb0 [ 39.506467][ T384] ? loop_remove+0xb0/0xb0 [ 39.510710][ T384] __se_sys_ioctl+0x114/0x190 [ 39.515224][ T384] __x64_sys_ioctl+0x7b/0x90 [ 39.519650][ T384] do_syscall_64+0x34/0x70 [ 39.523901][ T384] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 39.529638][ T384] RIP: 0033:0x7f4305d14d39 [ 39.533889][ T384] 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 [ 39.553344][ T384] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 39.561588][ T384] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 39.569387][ T384] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 39.577211][ T384] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 384] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 384] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 384] exit_group(0) = ? [pid 384] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=384, 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=0x5555572ea650) = 386 ./strace-static-x86_64: Process 386 attached [pid 386] set_robust_list(0x5555572ea660, 24) = 0 [pid 386] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 386] setpgid(0, 0) = 0 [pid 386] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 386] write(3, "1000", 4) = 4 [pid 386] close(3) = 0 [pid 386] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 386] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 386] write(4, "76", 2) = 2 [pid 386] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 386] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 386] exit_group(0) = ? [pid 386] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=386, 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=0x5555572ea650) = 387 ./strace-static-x86_64: Process 387 attached [pid 387] set_robust_list(0x5555572ea660, 24) = 0 [pid 387] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 387] setpgid(0, 0) = 0 [pid 387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 387] write(3, "1000", 4) = 4 [pid 387] close(3) = 0 [pid 387] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 387] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 387] write(4, "76", 2) = 2 [ 39.585003][ T384] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 39.592815][ T384] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 39.653740][ T387] FAULT_INJECTION: forcing a failure. [ 39.653740][ T387] name failslab, interval 1, probability 0, space 0, times 0 [ 39.666562][ T387] CPU: 0 PID: 387 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 39.676549][ T387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 39.686445][ T387] Call Trace: [ 39.689586][ T387] dump_stack_lvl+0x1e2/0x24b [ 39.694178][ T387] ? panic+0x80b/0x80b [ 39.698081][ T387] ? bfq_pos_tree_add_move+0x43b/0x43b [ 39.703379][ T387] ? __lookup_slow+0x2fe/0x400 [ 39.707980][ T387] dump_stack+0x15/0x17 [ 39.711967][ T387] should_fail+0x3c6/0x510 [ 39.716225][ T387] ? new_inode_pseudo+0x7c/0x220 [ 39.721017][ T387] __should_failslab+0xa4/0xe0 [ 39.725598][ T387] should_failslab+0x9/0x20 [ 39.729941][ T387] kmem_cache_alloc+0x3d/0x2e0 [ 39.734535][ T387] new_inode_pseudo+0x7c/0x220 [ 39.739137][ T387] new_inode+0x28/0x1c0 [ 39.743128][ T387] ? start_creating+0x1d4/0x2f0 [ 39.747812][ T387] __debugfs_create_file+0x14d/0x4c0 [ 39.752934][ T387] ? up_write+0x59/0x120 [ 39.757014][ T387] debugfs_create_file+0x4a/0x60 [ 39.761788][ T387] bdi_register_va+0x2a6/0x610 [ 39.766389][ T387] bdi_register+0xd1/0x120 [ 39.770643][ T387] ? vsnprintf+0x1e1/0x1c70 [ 39.774982][ T387] ? __device_add_disk+0x552/0x11a0 [ 39.780014][ T387] ? bdi_register_va+0x610/0x610 [ 39.784790][ T387] ? __kasan_check_read+0x11/0x20 [ 39.789658][ T387] ? blk_alloc_devt+0xd7/0x330 [ 39.794258][ T387] __device_add_disk+0x5de/0x11a0 [ 39.799114][ T387] ? device_add_disk+0x40/0x40 [ 39.803709][ T387] ? vsprintf+0x40/0x40 [ 39.807703][ T387] ? device_initialize+0x1e1/0x420 [ 39.812649][ T387] device_add_disk+0x2a/0x40 [ 39.817074][ T387] loop_add+0x580/0x750 [ 39.821066][ T387] loop_control_ioctl+0x448/0x620 [ 39.825929][ T387] ? loop_remove+0xb0/0xb0 [ 39.830182][ T387] ? _raw_spin_unlock_irq+0x4e/0x70 [ 39.835215][ T387] ? ptrace_notify+0x24c/0x350 [ 39.839814][ T387] ? do_notify_parent+0xa10/0xa10 [ 39.844707][ T387] ? security_file_ioctl+0x84/0xb0 [ 39.849723][ T387] ? loop_remove+0xb0/0xb0 [ 39.853969][ T387] __se_sys_ioctl+0x114/0x190 [ 39.858490][ T387] __x64_sys_ioctl+0x7b/0x90 [ 39.862906][ T387] do_syscall_64+0x34/0x70 [ 39.867158][ T387] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 39.872886][ T387] RIP: 0033:0x7f4305d14d39 [ 39.877136][ T387] 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 [ 39.896582][ T387] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [pid 387] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 387] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 387] exit_group(0) = ? [pid 387] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=387, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 388 ./strace-static-x86_64: Process 388 attached [pid 388] set_robust_list(0x5555572ea660, 24) = 0 [pid 388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 388] setpgid(0, 0) = 0 [pid 388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 388] write(3, "1000", 4) = 4 [pid 388] close(3) = 0 [pid 388] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 388] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 388] write(4, "76", 2) = 2 [ 39.904822][ T387] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 39.912636][ T387] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 39.920451][ T387] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 39.928343][ T387] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 39.936157][ T387] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 39.944053][ T387] debugfs: out of free dentries, can not create file 'stats' [ 39.994249][ T388] FAULT_INJECTION: forcing a failure. [ 39.994249][ T388] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 40.007429][ T388] CPU: 1 PID: 388 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 40.017461][ T388] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 40.027370][ T388] Call Trace: [ 40.030494][ T388] dump_stack_lvl+0x1e2/0x24b [ 40.034998][ T388] ? bfq_pos_tree_add_move+0x43b/0x43b [ 40.040292][ T388] dump_stack+0x15/0x17 [ 40.044282][ T388] should_fail+0x3c6/0x510 [ 40.048534][ T388] should_fail_alloc_page+0x52/0x60 [ 40.053569][ T388] __alloc_pages_nodemask+0x1b3/0xaf0 [ 40.058777][ T388] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 40.064161][ T388] ? __kasan_check_write+0x14/0x20 [ 40.069371][ T388] ? _raw_spin_lock+0xa4/0x1b0 [ 40.073965][ T388] __get_free_pages+0xe/0x30 [ 40.078392][ T388] selinux_genfs_get_sid+0x56/0x2a0 [ 40.083429][ T388] ? lockref_get+0xb4/0x110 [ 40.087764][ T388] inode_doinit_with_dentry+0x86f/0x1050 [ 40.093236][ T388] ? sb_finish_set_opts+0x7a0/0x7a0 [ 40.098270][ T388] ? current_time+0x1af/0x2f0 [ 40.102783][ T388] selinux_d_instantiate+0x27/0x40 [ 40.107730][ T388] security_d_instantiate+0x9f/0x100 [ 40.112855][ T388] d_instantiate+0x55/0x90 [ 40.117102][ T388] __debugfs_create_file+0x2e6/0x4c0 [ 40.122233][ T388] debugfs_create_file+0x4a/0x60 [ 40.126996][ T388] bdi_register_va+0x2a6/0x610 [ 40.131598][ T388] bdi_register+0xd1/0x120 [ 40.135851][ T388] ? vsnprintf+0x1e1/0x1c70 [ 40.140188][ T388] ? __device_add_disk+0x552/0x11a0 [ 40.145222][ T388] ? bdi_register_va+0x610/0x610 [ 40.149996][ T388] ? __kasan_check_read+0x11/0x20 [ 40.154860][ T388] ? blk_alloc_devt+0xd7/0x330 [ 40.159456][ T388] __device_add_disk+0x5de/0x11a0 [ 40.164329][ T388] ? device_add_disk+0x40/0x40 [ 40.169093][ T388] ? vsprintf+0x40/0x40 [ 40.173084][ T388] ? device_initialize+0x1e1/0x420 [ 40.178171][ T388] device_add_disk+0x2a/0x40 [ 40.182673][ T388] loop_add+0x580/0x750 [ 40.186665][ T388] loop_control_ioctl+0x448/0x620 [ 40.191526][ T388] ? loop_remove+0xb0/0xb0 [ 40.195780][ T388] ? _raw_spin_unlock_irq+0x4e/0x70 [ 40.200815][ T388] ? ptrace_notify+0x24c/0x350 [ 40.205436][ T388] ? do_notify_parent+0xa10/0xa10 [ 40.210279][ T388] ? security_file_ioctl+0x84/0xb0 [ 40.215227][ T388] ? loop_remove+0xb0/0xb0 [ 40.219476][ T388] __se_sys_ioctl+0x114/0x190 [ 40.223990][ T388] __x64_sys_ioctl+0x7b/0x90 [ 40.228414][ T388] do_syscall_64+0x34/0x70 [ 40.232681][ T388] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 40.238399][ T388] RIP: 0033:0x7f4305d14d39 [ 40.242646][ T388] 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 [ 40.262180][ T388] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 40.270421][ T388] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 40.278232][ T388] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 40.286045][ T388] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 388] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 388] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 388] exit_group(0) = ? [pid 388] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=388, 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=0x5555572ea650) = 389 ./strace-static-x86_64: Process 389 attached [pid 389] set_robust_list(0x5555572ea660, 24) = 0 [pid 389] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 389] setpgid(0, 0) = 0 [pid 389] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 389] write(3, "1000", 4) = 4 [pid 389] close(3) = 0 [pid 389] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 389] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 389] write(4, "76", 2) = 2 [ 40.293865][ T388] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 40.301666][ T388] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 40.344110][ T389] FAULT_INJECTION: forcing a failure. [ 40.344110][ T389] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 40.357205][ T389] CPU: 0 PID: 389 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 40.367191][ T389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 40.377081][ T389] Call Trace: [ 40.380218][ T389] dump_stack_lvl+0x1e2/0x24b [ 40.384724][ T389] ? bfq_pos_tree_add_move+0x43b/0x43b [ 40.390029][ T389] dump_stack+0x15/0x17 [ 40.394010][ T389] should_fail+0x3c6/0x510 [ 40.398266][ T389] should_fail_alloc_page+0x52/0x60 [ 40.403299][ T389] __alloc_pages_nodemask+0x1b3/0xaf0 [ 40.408515][ T389] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 40.413885][ T389] ? __kasan_check_write+0x14/0x20 [ 40.418840][ T389] ? _raw_spin_lock+0xa4/0x1b0 [ 40.423440][ T389] __get_free_pages+0xe/0x30 [ 40.427860][ T389] selinux_genfs_get_sid+0x56/0x2a0 [ 40.432892][ T389] ? lockref_get+0xb4/0x110 [ 40.437241][ T389] inode_doinit_with_dentry+0x86f/0x1050 [ 40.442704][ T389] ? sb_finish_set_opts+0x7a0/0x7a0 [ 40.447744][ T389] ? current_time+0x1af/0x2f0 [ 40.452253][ T389] selinux_d_instantiate+0x27/0x40 [ 40.457195][ T389] security_d_instantiate+0x9f/0x100 [ 40.462319][ T389] d_instantiate+0x55/0x90 [ 40.466569][ T389] __debugfs_create_file+0x2e6/0x4c0 [ 40.471693][ T389] debugfs_create_file+0x4a/0x60 [ 40.476465][ T389] bdi_register_va+0x2a6/0x610 [ 40.481065][ T389] bdi_register+0xd1/0x120 [ 40.485315][ T389] ? vsnprintf+0x1e1/0x1c70 [ 40.489656][ T389] ? __device_add_disk+0x552/0x11a0 [ 40.494687][ T389] ? bdi_register_va+0x610/0x610 [ 40.499468][ T389] ? __kasan_check_read+0x11/0x20 [ 40.504325][ T389] ? blk_alloc_devt+0xd7/0x330 [ 40.508925][ T389] __device_add_disk+0x5de/0x11a0 [ 40.513784][ T389] ? device_add_disk+0x40/0x40 [ 40.518383][ T389] ? vsprintf+0x40/0x40 [ 40.522379][ T389] ? device_initialize+0x1e1/0x420 [ 40.527326][ T389] device_add_disk+0x2a/0x40 [ 40.531753][ T389] loop_add+0x580/0x750 [ 40.535744][ T389] loop_control_ioctl+0x448/0x620 [ 40.540635][ T389] ? loop_remove+0xb0/0xb0 [ 40.544863][ T389] ? _raw_spin_unlock_irq+0x4e/0x70 [ 40.549893][ T389] ? ptrace_notify+0x24c/0x350 [ 40.554495][ T389] ? do_notify_parent+0xa10/0xa10 [ 40.559362][ T389] ? security_file_ioctl+0x84/0xb0 [ 40.564309][ T389] ? loop_remove+0xb0/0xb0 [ 40.568569][ T389] __se_sys_ioctl+0x114/0x190 [ 40.573068][ T389] __x64_sys_ioctl+0x7b/0x90 [ 40.577497][ T389] do_syscall_64+0x34/0x70 [ 40.581745][ T389] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 40.587479][ T389] RIP: 0033:0x7f4305d14d39 [ 40.591726][ T389] 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 [ 40.611174][ T389] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 40.619419][ T389] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 40.627222][ T389] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 40.635031][ T389] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 389] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 389] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 389] exit_group(0) = ? [pid 389] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=389, 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 391 attached , child_tidptr=0x5555572ea650) = 391 [pid 391] set_robust_list(0x5555572ea660, 24) = 0 [pid 391] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 391] setpgid(0, 0) = 0 [pid 391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 391] write(3, "1000", 4) = 4 [pid 391] close(3) = 0 [pid 391] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 391] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 391] write(4, "76", 2) = 2 [pid 391] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 391] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 391] exit_group(0) = ? [pid 391] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=391, 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=0x5555572ea650) = 392 ./strace-static-x86_64: Process 392 attached [pid 392] set_robust_list(0x5555572ea660, 24) = 0 [pid 392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 392] setpgid(0, 0) = 0 [pid 392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 392] write(3, "1000", 4) = 4 [pid 392] close(3) = 0 [pid 392] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 392] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 392] write(4, "76", 2) = 2 [ 40.642847][ T389] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 40.650658][ T389] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 40.693158][ T392] FAULT_INJECTION: forcing a failure. [ 40.693158][ T392] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 40.706342][ T392] CPU: 0 PID: 392 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 40.716365][ T392] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 40.726261][ T392] Call Trace: [ 40.729390][ T392] dump_stack_lvl+0x1e2/0x24b [ 40.733898][ T392] ? bfq_pos_tree_add_move+0x43b/0x43b [ 40.739199][ T392] dump_stack+0x15/0x17 [ 40.743184][ T392] should_fail+0x3c6/0x510 [ 40.747483][ T392] should_fail_alloc_page+0x52/0x60 [ 40.752473][ T392] __alloc_pages_nodemask+0x1b3/0xaf0 [ 40.757769][ T392] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 40.763148][ T392] ? __kasan_check_write+0x14/0x20 [ 40.768097][ T392] ? _raw_spin_lock+0xa4/0x1b0 [ 40.772691][ T392] __get_free_pages+0xe/0x30 [ 40.777120][ T392] selinux_genfs_get_sid+0x56/0x2a0 [ 40.782155][ T392] ? lockref_get+0xb4/0x110 [ 40.786493][ T392] inode_doinit_with_dentry+0x86f/0x1050 [ 40.791962][ T392] ? sb_finish_set_opts+0x7a0/0x7a0 [ 40.796998][ T392] ? current_time+0x1af/0x2f0 [ 40.801507][ T392] selinux_d_instantiate+0x27/0x40 [ 40.806456][ T392] security_d_instantiate+0x9f/0x100 [ 40.811579][ T392] d_instantiate+0x55/0x90 [ 40.815833][ T392] __debugfs_create_file+0x2e6/0x4c0 [ 40.820955][ T392] debugfs_create_file+0x4a/0x60 [ 40.825729][ T392] bdi_register_va+0x2a6/0x610 [ 40.830329][ T392] bdi_register+0xd1/0x120 [ 40.834578][ T392] ? vsnprintf+0x1e1/0x1c70 [ 40.838923][ T392] ? __device_add_disk+0x552/0x11a0 [ 40.843957][ T392] ? bdi_register_va+0x610/0x610 [ 40.848731][ T392] ? __kasan_check_read+0x11/0x20 [ 40.853585][ T392] ? blk_alloc_devt+0xd7/0x330 [ 40.858189][ T392] __device_add_disk+0x5de/0x11a0 [ 40.863051][ T392] ? device_add_disk+0x40/0x40 [ 40.867656][ T392] ? vsprintf+0x40/0x40 [ 40.871661][ T392] ? device_initialize+0x1e1/0x420 [ 40.876595][ T392] device_add_disk+0x2a/0x40 [ 40.881015][ T392] loop_add+0x580/0x750 [ 40.885006][ T392] loop_control_ioctl+0x448/0x620 [ 40.889867][ T392] ? loop_remove+0xb0/0xb0 [ 40.894139][ T392] ? _raw_spin_unlock_irq+0x4e/0x70 [ 40.899158][ T392] ? ptrace_notify+0x24c/0x350 [ 40.903756][ T392] ? do_notify_parent+0xa10/0xa10 [ 40.908639][ T392] ? security_file_ioctl+0x84/0xb0 [ 40.913914][ T392] ? loop_remove+0xb0/0xb0 [ 40.918168][ T392] __se_sys_ioctl+0x114/0x190 [ 40.922676][ T392] __x64_sys_ioctl+0x7b/0x90 [ 40.927104][ T392] do_syscall_64+0x34/0x70 [ 40.931378][ T392] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 40.937100][ T392] RIP: 0033:0x7f4305d14d39 [ 40.941342][ T392] 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 [ 40.960777][ T392] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 40.969022][ T392] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 40.976833][ T392] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 40.984656][ T392] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 392] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 392] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 392] exit_group(0) = ? [pid 392] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=392, 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=0x5555572ea650) = 393 ./strace-static-x86_64: Process 393 attached [pid 393] set_robust_list(0x5555572ea660, 24) = 0 [pid 393] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 393] setpgid(0, 0) = 0 [pid 393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 393] write(3, "1000", 4) = 4 [pid 393] close(3) = 0 [pid 393] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 393] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 393] write(4, "76", 2) = 2 [pid 393] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 393] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 393] exit_group(0) = ? [pid 393] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=393, 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./strace-static-x86_64: Process 394 attached , child_tidptr=0x5555572ea650) = 394 [pid 394] set_robust_list(0x5555572ea660, 24) = 0 [pid 394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 394] setpgid(0, 0) = 0 [pid 394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 394] write(3, "1000", 4) = 4 [pid 394] close(3) = 0 [pid 394] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 394] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 394] write(4, "76", 2) = 2 [ 40.992458][ T392] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 41.000272][ T392] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 41.032234][ T394] FAULT_INJECTION: forcing a failure. [ 41.032234][ T394] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 41.045407][ T394] CPU: 0 PID: 394 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 41.055430][ T394] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 41.065327][ T394] Call Trace: [ 41.068456][ T394] dump_stack_lvl+0x1e2/0x24b [ 41.072961][ T394] ? bfq_pos_tree_add_move+0x43b/0x43b [ 41.078260][ T394] dump_stack+0x15/0x17 [ 41.082249][ T394] should_fail+0x3c6/0x510 [ 41.086502][ T394] should_fail_alloc_page+0x52/0x60 [ 41.091537][ T394] __alloc_pages_nodemask+0x1b3/0xaf0 [ 41.096745][ T394] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 41.102217][ T394] ? __kasan_check_write+0x14/0x20 [ 41.107161][ T394] ? _raw_spin_lock+0xa4/0x1b0 [ 41.111760][ T394] __get_free_pages+0xe/0x30 [ 41.116186][ T394] selinux_genfs_get_sid+0x56/0x2a0 [ 41.121223][ T394] ? lockref_get+0xb4/0x110 [ 41.125565][ T394] inode_doinit_with_dentry+0x86f/0x1050 [ 41.131028][ T394] ? sb_finish_set_opts+0x7a0/0x7a0 [ 41.136070][ T394] ? current_time+0x1af/0x2f0 [ 41.140576][ T394] selinux_d_instantiate+0x27/0x40 [ 41.145520][ T394] security_d_instantiate+0x9f/0x100 [ 41.150643][ T394] d_instantiate+0x55/0x90 [ 41.154894][ T394] __debugfs_create_file+0x2e6/0x4c0 [ 41.160019][ T394] debugfs_create_file+0x4a/0x60 [ 41.164790][ T394] bdi_register_va+0x2a6/0x610 [ 41.169387][ T394] bdi_register+0xd1/0x120 [ 41.173641][ T394] ? vsnprintf+0x1e1/0x1c70 [ 41.177984][ T394] ? __device_add_disk+0x552/0x11a0 [ 41.183015][ T394] ? bdi_register_va+0x610/0x610 [ 41.187791][ T394] ? __kasan_check_read+0x11/0x20 [ 41.192649][ T394] ? blk_alloc_devt+0xd7/0x330 [ 41.197262][ T394] __device_add_disk+0x5de/0x11a0 [ 41.202114][ T394] ? device_add_disk+0x40/0x40 [ 41.206709][ T394] ? vsprintf+0x40/0x40 [ 41.210702][ T394] ? device_initialize+0x1e1/0x420 [ 41.215650][ T394] device_add_disk+0x2a/0x40 [ 41.220079][ T394] loop_add+0x580/0x750 [ 41.224070][ T394] loop_control_ioctl+0x448/0x620 [ 41.228927][ T394] ? loop_remove+0xb0/0xb0 [ 41.233185][ T394] ? _raw_spin_unlock_irq+0x4e/0x70 [ 41.238223][ T394] ? ptrace_notify+0x24c/0x350 [ 41.242831][ T394] ? do_notify_parent+0xa10/0xa10 [ 41.247681][ T394] ? security_file_ioctl+0x84/0xb0 [ 41.252624][ T394] ? loop_remove+0xb0/0xb0 [ 41.256877][ T394] __se_sys_ioctl+0x114/0x190 [ 41.261393][ T394] __x64_sys_ioctl+0x7b/0x90 [ 41.265818][ T394] do_syscall_64+0x34/0x70 [ 41.270071][ T394] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 41.275801][ T394] RIP: 0033:0x7f4305d14d39 [pid 394] ioctl(3, LOOP_CTL_ADD, 11) = 11 [ 41.280057][ T394] 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 [ 41.299513][ T394] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 41.307740][ T394] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 41.315549][ T394] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 41.323371][ T394] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 41.331180][ T394] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 41.338983][ T394] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 41.349807][ T24] audit: type=1400 audit(1709393835.710:72): avc: denied { unlink } for pid=76 comm="syslogd" name="messages.0" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [pid 394] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 394] exit_group(0) = ? [pid 394] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=394, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 395 ./strace-static-x86_64: Process 395 attached [pid 395] set_robust_list(0x5555572ea660, 24) = 0 [pid 395] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 395] setpgid(0, 0) = 0 [pid 395] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 395] write(3, "1000", 4) = 4 [pid 395] close(3) = 0 [pid 395] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 395] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 395] write(4, "76", 2) = 2 [ 41.454417][ T395] FAULT_INJECTION: forcing a failure. [ 41.454417][ T395] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 41.467645][ T395] CPU: 1 PID: 395 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 41.477668][ T395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 41.487557][ T395] Call Trace: [ 41.490701][ T395] dump_stack_lvl+0x1e2/0x24b [ 41.495199][ T395] ? bfq_pos_tree_add_move+0x43b/0x43b [ 41.500493][ T395] dump_stack+0x15/0x17 [ 41.504504][ T395] should_fail+0x3c6/0x510 [ 41.508740][ T395] should_fail_alloc_page+0x52/0x60 [ 41.513771][ T395] __alloc_pages_nodemask+0x1b3/0xaf0 [ 41.518984][ T395] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 41.524362][ T395] ? __kasan_check_write+0x14/0x20 [ 41.529325][ T395] ? _raw_spin_lock+0xa4/0x1b0 [ 41.533913][ T395] __get_free_pages+0xe/0x30 [ 41.538357][ T395] selinux_genfs_get_sid+0x56/0x2a0 [ 41.543374][ T395] ? lockref_get+0xb4/0x110 [ 41.547720][ T395] inode_doinit_with_dentry+0x86f/0x1050 [ 41.553194][ T395] ? sb_finish_set_opts+0x7a0/0x7a0 [ 41.558213][ T395] ? current_time+0x1af/0x2f0 [ 41.562723][ T395] selinux_d_instantiate+0x27/0x40 [ 41.567672][ T395] security_d_instantiate+0x9f/0x100 [ 41.572793][ T395] d_instantiate+0x55/0x90 [ 41.577065][ T395] __debugfs_create_file+0x2e6/0x4c0 [ 41.582183][ T395] debugfs_create_file+0x4a/0x60 [ 41.586940][ T395] bdi_register_va+0x2a6/0x610 [ 41.591538][ T395] bdi_register+0xd1/0x120 [ 41.595791][ T395] ? vsnprintf+0x1e1/0x1c70 [ 41.600135][ T395] ? __device_add_disk+0x552/0x11a0 [ 41.605182][ T395] ? bdi_register_va+0x610/0x610 [ 41.609939][ T395] ? __kasan_check_read+0x11/0x20 [ 41.614799][ T395] ? blk_alloc_devt+0xd7/0x330 [ 41.619401][ T395] __device_add_disk+0x5de/0x11a0 [ 41.624262][ T395] ? device_add_disk+0x40/0x40 [ 41.628859][ T395] ? vsprintf+0x40/0x40 [ 41.632854][ T395] ? device_initialize+0x1e1/0x420 [ 41.637802][ T395] device_add_disk+0x2a/0x40 [ 41.642227][ T395] loop_add+0x580/0x750 [ 41.646306][ T395] loop_control_ioctl+0x448/0x620 [ 41.651164][ T395] ? loop_remove+0xb0/0xb0 [ 41.655420][ T395] ? _raw_spin_unlock_irq+0x4e/0x70 [ 41.660457][ T395] ? ptrace_notify+0x24c/0x350 [ 41.665052][ T395] ? do_notify_parent+0xa10/0xa10 [ 41.669916][ T395] ? security_file_ioctl+0x84/0xb0 [ 41.674860][ T395] ? loop_remove+0xb0/0xb0 [ 41.679115][ T395] __se_sys_ioctl+0x114/0x190 [ 41.683625][ T395] __x64_sys_ioctl+0x7b/0x90 [ 41.688056][ T395] do_syscall_64+0x34/0x70 [ 41.692311][ T395] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 41.698038][ T395] RIP: 0033:0x7f4305d14d39 [ 41.702289][ T395] 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 [ 41.721742][ T395] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 41.729974][ T395] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 41.737786][ T395] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 41.745599][ T395] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 395] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 395] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 395] exit_group(0) = ? [pid 395] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=395, 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=0x5555572ea650) = 397 ./strace-static-x86_64: Process 397 attached [pid 397] set_robust_list(0x5555572ea660, 24) = 0 [pid 397] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 397] setpgid(0, 0) = 0 [pid 397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 397] write(3, "1000", 4) = 4 [pid 397] close(3) = 0 [pid 397] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 397] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 397] write(4, "76", 2) = 2 [pid 397] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 397] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 397] exit_group(0) = ? [pid 397] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=397, 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=0x5555572ea650) = 398 ./strace-static-x86_64: Process 398 attached [pid 398] set_robust_list(0x5555572ea660, 24) = 0 [pid 398] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 398] setpgid(0, 0) = 0 [pid 398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 398] write(3, "1000", 4) = 4 [pid 398] close(3) = 0 [pid 398] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 398] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 398] write(4, "76", 2) = 2 [ 41.753407][ T395] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 41.761221][ T395] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 41.802399][ T398] FAULT_INJECTION: forcing a failure. [ 41.802399][ T398] name failslab, interval 1, probability 0, space 0, times 0 [ 41.814855][ T398] CPU: 0 PID: 398 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 41.824864][ T398] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 41.834758][ T398] Call Trace: [ 41.837903][ T398] dump_stack_lvl+0x1e2/0x24b [ 41.842410][ T398] ? panic+0x80b/0x80b [ 41.846303][ T398] ? bfq_pos_tree_add_move+0x43b/0x43b [ 41.851598][ T398] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 41.856457][ T398] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 41.861500][ T398] dump_stack+0x15/0x17 [ 41.865486][ T398] should_fail+0x3c6/0x510 [ 41.869738][ T398] ? kobj_map+0x64/0x670 [ 41.873816][ T398] __should_failslab+0xa4/0xe0 [ 41.878419][ T398] should_failslab+0x9/0x20 [ 41.882756][ T398] __kmalloc+0x60/0x330 [ 41.886931][ T398] ? __device_add_disk+0x552/0x11a0 [ 41.891957][ T398] kobj_map+0x64/0x670 [ 41.895865][ T398] ? kobject_get+0xd1/0x120 [ 41.900202][ T398] ? exact_match+0x20/0x20 [ 41.904453][ T398] ? bdev_check_media_change+0x4d0/0x4d0 [ 41.909925][ T398] __device_add_disk+0x67b/0x11a0 [ 41.914791][ T398] ? device_add_disk+0x40/0x40 [ 41.919385][ T398] ? vsprintf+0x40/0x40 [ 41.923378][ T398] ? device_initialize+0x1e1/0x420 [ 41.928326][ T398] device_add_disk+0x2a/0x40 [ 41.932750][ T398] loop_add+0x580/0x750 [ 41.936744][ T398] loop_control_ioctl+0x448/0x620 [ 41.941689][ T398] ? loop_remove+0xb0/0xb0 [ 41.945952][ T398] ? _raw_spin_unlock_irq+0x4e/0x70 [ 41.950978][ T398] ? ptrace_notify+0x24c/0x350 [ 41.955575][ T398] ? do_notify_parent+0xa10/0xa10 [ 41.960442][ T398] ? security_file_ioctl+0x84/0xb0 [ 41.965390][ T398] ? loop_remove+0xb0/0xb0 [ 41.970162][ T398] __se_sys_ioctl+0x114/0x190 [ 41.974682][ T398] __x64_sys_ioctl+0x7b/0x90 [ 41.979101][ T398] do_syscall_64+0x34/0x70 [ 41.983368][ T398] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 41.989167][ T398] RIP: 0033:0x7f4305d14d39 [ 41.993420][ T398] 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 [ 42.012861][ T398] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.021104][ T398] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 42.028921][ T398] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 42.036823][ T398] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 42.044627][ T398] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [pid 398] ioctl(3, LOOP_CTL_ADD, 11) = 11 [ 42.052524][ T398] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 398] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 398] exit_group(0) = ? [pid 398] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=398, 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=0x5555572ea650) = 399 ./strace-static-x86_64: Process 399 attached [pid 399] set_robust_list(0x5555572ea660, 24) = 0 [pid 399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 399] setpgid(0, 0) = 0 [pid 399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 399] write(3, "1000", 4) = 4 [pid 399] close(3) = 0 [pid 399] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 399] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 399] write(4, "76", 2) = 2 [ 42.144703][ T399] FAULT_INJECTION: forcing a failure. [ 42.144703][ T399] name failslab, interval 1, probability 0, space 0, times 0 [ 42.157213][ T399] CPU: 0 PID: 399 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 42.167173][ T399] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 42.177068][ T399] Call Trace: [ 42.180200][ T399] dump_stack_lvl+0x1e2/0x24b [ 42.184710][ T399] ? panic+0x80b/0x80b [ 42.188620][ T399] ? bfq_pos_tree_add_move+0x43b/0x43b [ 42.193907][ T399] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 42.198772][ T399] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 42.203805][ T399] dump_stack+0x15/0x17 [ 42.207805][ T399] should_fail+0x3c6/0x510 [ 42.212050][ T399] ? kobj_map+0x64/0x670 [ 42.216133][ T399] __should_failslab+0xa4/0xe0 [ 42.220728][ T399] should_failslab+0x9/0x20 [ 42.225069][ T399] __kmalloc+0x60/0x330 [ 42.229067][ T399] ? __device_add_disk+0x552/0x11a0 [ 42.234092][ T399] kobj_map+0x64/0x670 [ 42.237996][ T399] ? kobject_get+0xd1/0x120 [ 42.242336][ T399] ? exact_match+0x20/0x20 [ 42.246590][ T399] ? bdev_check_media_change+0x4d0/0x4d0 [ 42.252059][ T399] __device_add_disk+0x67b/0x11a0 [ 42.256921][ T399] ? device_add_disk+0x40/0x40 [ 42.261527][ T399] ? vsprintf+0x40/0x40 [ 42.265514][ T399] ? device_initialize+0x1e1/0x420 [ 42.270461][ T399] device_add_disk+0x2a/0x40 [ 42.274885][ T399] loop_add+0x580/0x750 [ 42.278965][ T399] loop_control_ioctl+0x448/0x620 [ 42.283822][ T399] ? loop_remove+0xb0/0xb0 [ 42.288086][ T399] ? _raw_spin_unlock_irq+0x4e/0x70 [ 42.293113][ T399] ? ptrace_notify+0x24c/0x350 [ 42.297711][ T399] ? do_notify_parent+0xa10/0xa10 [ 42.302572][ T399] ? security_file_ioctl+0x84/0xb0 [ 42.307517][ T399] ? loop_remove+0xb0/0xb0 [ 42.311772][ T399] __se_sys_ioctl+0x114/0x190 [ 42.316283][ T399] __x64_sys_ioctl+0x7b/0x90 [ 42.320712][ T399] do_syscall_64+0x34/0x70 [ 42.324964][ T399] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 42.330692][ T399] RIP: 0033:0x7f4305d14d39 [ 42.335207][ T399] 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 [ 42.354648][ T399] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.363177][ T399] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 42.371160][ T399] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 42.378972][ T399] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 42.386783][ T399] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [pid 399] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 399] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 399] exit_group(0) = ? [pid 399] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=399, 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=0x5555572ea650) = 400 ./strace-static-x86_64: Process 400 attached [pid 400] set_robust_list(0x5555572ea660, 24) = 0 [pid 400] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 400] setpgid(0, 0) = 0 [pid 400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 400] write(3, "1000", 4) = 4 [pid 400] close(3) = 0 [pid 400] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 400] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 400] write(4, "76", 2) = 2 [pid 400] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 400] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 400] exit_group(0) = ? [pid 400] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=400, 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=0x5555572ea650) = 401 ./strace-static-x86_64: Process 401 attached [pid 401] set_robust_list(0x5555572ea660, 24) = 0 [pid 401] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 401] setpgid(0, 0) = 0 [pid 401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 401] write(3, "1000", 4) = 4 [pid 401] close(3) = 0 [pid 401] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 401] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 401] write(4, "76", 2) = 2 [ 42.394601][ T399] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 42.454496][ T401] FAULT_INJECTION: forcing a failure. [ 42.454496][ T401] name failslab, interval 1, probability 0, space 0, times 0 [ 42.466986][ T401] CPU: 1 PID: 401 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 42.477052][ T401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 42.486952][ T401] Call Trace: [ 42.490076][ T401] dump_stack_lvl+0x1e2/0x24b [ 42.494584][ T401] ? panic+0x80b/0x80b [ 42.499014][ T401] ? bfq_pos_tree_add_move+0x43b/0x43b [ 42.504305][ T401] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 42.509178][ T401] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 42.514287][ T401] dump_stack+0x15/0x17 [ 42.518279][ T401] should_fail+0x3c6/0x510 [ 42.522575][ T401] ? kobj_map+0x64/0x670 [ 42.526614][ T401] __should_failslab+0xa4/0xe0 [ 42.531210][ T401] should_failslab+0x9/0x20 [ 42.535552][ T401] __kmalloc+0x60/0x330 [ 42.539546][ T401] ? __device_add_disk+0x552/0x11a0 [ 42.544666][ T401] kobj_map+0x64/0x670 [ 42.548581][ T401] ? kobject_get+0xd1/0x120 [ 42.552910][ T401] ? exact_match+0x20/0x20 [ 42.557170][ T401] ? bdev_check_media_change+0x4d0/0x4d0 [ 42.562805][ T401] __device_add_disk+0x67b/0x11a0 [ 42.567675][ T401] ? device_add_disk+0x40/0x40 [ 42.572271][ T401] ? vsprintf+0x40/0x40 [ 42.576261][ T401] ? device_initialize+0x1e1/0x420 [ 42.581207][ T401] device_add_disk+0x2a/0x40 [ 42.585631][ T401] loop_add+0x580/0x750 [ 42.589624][ T401] loop_control_ioctl+0x448/0x620 [ 42.594487][ T401] ? loop_remove+0xb0/0xb0 [ 42.598737][ T401] ? _raw_spin_unlock_irq+0x4e/0x70 [ 42.603773][ T401] ? ptrace_notify+0x24c/0x350 [ 42.608375][ T401] ? do_notify_parent+0xa10/0xa10 [ 42.613257][ T401] ? security_file_ioctl+0x84/0xb0 [ 42.618176][ T401] ? loop_remove+0xb0/0xb0 [ 42.622430][ T401] __se_sys_ioctl+0x114/0x190 [ 42.626945][ T401] __x64_sys_ioctl+0x7b/0x90 [ 42.631459][ T401] do_syscall_64+0x34/0x70 [ 42.635714][ T401] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 42.641438][ T401] RIP: 0033:0x7f4305d14d39 [ 42.645781][ T401] 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 [ 42.665227][ T401] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 42.673467][ T401] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 42.681290][ T401] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 42.689096][ T401] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 42.696900][ T401] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [pid 401] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 401] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 401] exit_group(0) = ? [pid 401] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=401, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 402 ./strace-static-x86_64: Process 402 attached [pid 402] set_robust_list(0x5555572ea660, 24) = 0 [pid 402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 402] setpgid(0, 0) = 0 [pid 402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 402] write(3, "1000", 4) = 4 [pid 402] close(3) = 0 [pid 402] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 402] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 402] write(4, "76", 2) = 2 [ 42.704722][ T401] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 42.763052][ T402] FAULT_INJECTION: forcing a failure. [ 42.763052][ T402] name failslab, interval 1, probability 0, space 0, times 0 [ 42.775626][ T402] CPU: 0 PID: 402 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 42.785664][ T402] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 42.795558][ T402] Call Trace: [ 42.798715][ T402] dump_stack_lvl+0x1e2/0x24b [ 42.803194][ T402] ? panic+0x80b/0x80b [ 42.807103][ T402] ? bfq_pos_tree_add_move+0x43b/0x43b [ 42.812397][ T402] ? __lookup_slow+0x2fe/0x400 [ 42.816997][ T402] dump_stack+0x15/0x17 [ 42.821013][ T402] should_fail+0x3c6/0x510 [ 42.825240][ T402] ? new_inode_pseudo+0x7c/0x220 [ 42.830015][ T402] __should_failslab+0xa4/0xe0 [ 42.834614][ T402] should_failslab+0x9/0x20 [ 42.839029][ T402] kmem_cache_alloc+0x3d/0x2e0 [ 42.843556][ T402] new_inode_pseudo+0x7c/0x220 [ 42.848153][ T402] new_inode+0x28/0x1c0 [ 42.852147][ T402] ? start_creating+0x1d4/0x2f0 [ 42.856852][ T402] __debugfs_create_file+0x14d/0x4c0 [ 42.861961][ T402] ? up_write+0x59/0x120 [ 42.866044][ T402] debugfs_create_file+0x4a/0x60 [ 42.870812][ T402] bdi_register_va+0x2a6/0x610 [ 42.875409][ T402] bdi_register+0xd1/0x120 [ 42.879659][ T402] ? vsnprintf+0x1e1/0x1c70 [ 42.884000][ T402] ? __device_add_disk+0x552/0x11a0 [ 42.889034][ T402] ? bdi_register_va+0x610/0x610 [ 42.893807][ T402] ? __kasan_check_read+0x11/0x20 [ 42.898666][ T402] ? blk_alloc_devt+0xd7/0x330 [ 42.903266][ T402] __device_add_disk+0x5de/0x11a0 [ 42.908132][ T402] ? device_add_disk+0x40/0x40 [ 42.912726][ T402] ? vsprintf+0x40/0x40 [ 42.916730][ T402] ? device_initialize+0x1e1/0x420 [ 42.921670][ T402] device_add_disk+0x2a/0x40 [ 42.926097][ T402] loop_add+0x580/0x750 [ 42.930087][ T402] loop_control_ioctl+0x448/0x620 [ 42.934945][ T402] ? loop_remove+0xb0/0xb0 [ 42.939204][ T402] ? _raw_spin_unlock_irq+0x4e/0x70 [ 42.944233][ T402] ? ptrace_notify+0x24c/0x350 [ 42.948835][ T402] ? do_notify_parent+0xa10/0xa10 [ 42.953867][ T402] ? security_file_ioctl+0x84/0xb0 [ 42.958815][ T402] ? loop_remove+0xb0/0xb0 [ 42.963069][ T402] __se_sys_ioctl+0x114/0x190 [ 42.967582][ T402] __x64_sys_ioctl+0x7b/0x90 [ 42.972008][ T402] do_syscall_64+0x34/0x70 [ 42.976268][ T402] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 42.981988][ T402] RIP: 0033:0x7f4305d14d39 [ 42.986241][ T402] 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 [ 43.005683][ T402] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [pid 402] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 402] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 402] exit_group(0) = ? [pid 402] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=402, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 404 attached [pid 404] set_robust_list(0x5555572ea660, 24) = 0 [pid 404] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 404] setpgid(0, 0) = 0 [pid 404] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 404] write(3, "1000", 4) = 4 [pid 404] close(3) = 0 [pid 404] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 404] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 404] write(4, "76", 2) = 2 [pid 404] ioctl(3, LOOP_CTL_ADD, 11 [pid 289] <... clone resumed>, child_tidptr=0x5555572ea650) = 404 [ 43.013939][ T402] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 43.021738][ T402] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 43.029549][ T402] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 43.037360][ T402] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 43.045170][ T402] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 43.053192][ T402] debugfs: out of free dentries, can not create file 'stats' [ 43.082679][ T404] FAULT_INJECTION: forcing a failure. [ 43.082679][ T404] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 43.095946][ T404] CPU: 0 PID: 404 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 43.106000][ T404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 43.115884][ T404] Call Trace: [ 43.119012][ T404] dump_stack_lvl+0x1e2/0x24b [ 43.123508][ T404] ? bfq_pos_tree_add_move+0x43b/0x43b [ 43.128910][ T404] dump_stack+0x15/0x17 [ 43.132880][ T404] should_fail+0x3c6/0x510 [ 43.137134][ T404] should_fail_alloc_page+0x52/0x60 [ 43.142166][ T404] __alloc_pages_nodemask+0x1b3/0xaf0 [ 43.147373][ T404] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 43.152756][ T404] ? __kasan_check_write+0x14/0x20 [ 43.157711][ T404] ? _raw_spin_lock+0xa4/0x1b0 [ 43.162310][ T404] __get_free_pages+0xe/0x30 [ 43.167161][ T404] selinux_genfs_get_sid+0x56/0x2a0 [ 43.172200][ T404] ? lockref_get+0xb4/0x110 [ 43.176537][ T404] inode_doinit_with_dentry+0x86f/0x1050 [ 43.182013][ T404] ? sb_finish_set_opts+0x7a0/0x7a0 [ 43.187039][ T404] ? current_time+0x1af/0x2f0 [ 43.191562][ T404] selinux_d_instantiate+0x27/0x40 [ 43.196516][ T404] security_d_instantiate+0x9f/0x100 [ 43.201625][ T404] d_instantiate+0x55/0x90 [ 43.206133][ T404] __debugfs_create_file+0x2e6/0x4c0 [ 43.211369][ T404] debugfs_create_file+0x4a/0x60 [ 43.216125][ T404] bdi_register_va+0x2a6/0x610 [ 43.220721][ T404] bdi_register+0xd1/0x120 [ 43.224966][ T404] ? vsnprintf+0x1e1/0x1c70 [ 43.229309][ T404] ? __device_add_disk+0x552/0x11a0 [ 43.234346][ T404] ? bdi_register_va+0x610/0x610 [ 43.239121][ T404] ? __kasan_check_read+0x11/0x20 [ 43.243975][ T404] ? blk_alloc_devt+0xd7/0x330 [ 43.248661][ T404] __device_add_disk+0x5de/0x11a0 [ 43.253540][ T404] ? device_add_disk+0x40/0x40 [ 43.258122][ T404] ? vsprintf+0x40/0x40 [ 43.262115][ T404] ? device_initialize+0x1e1/0x420 [ 43.267067][ T404] device_add_disk+0x2a/0x40 [ 43.271488][ T404] loop_add+0x580/0x750 [ 43.275480][ T404] loop_control_ioctl+0x448/0x620 [ 43.280350][ T404] ? loop_remove+0xb0/0xb0 [ 43.284603][ T404] ? _raw_spin_unlock_irq+0x4e/0x70 [ 43.289627][ T404] ? ptrace_notify+0x24c/0x350 [ 43.294227][ T404] ? do_notify_parent+0xa10/0xa10 [ 43.299527][ T404] ? security_file_ioctl+0x84/0xb0 [ 43.304468][ T404] ? loop_remove+0xb0/0xb0 [ 43.308722][ T404] __se_sys_ioctl+0x114/0x190 [ 43.313236][ T404] __x64_sys_ioctl+0x7b/0x90 [ 43.317665][ T404] do_syscall_64+0x34/0x70 [ 43.321917][ T404] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 43.327641][ T404] RIP: 0033:0x7f4305d14d39 [ 43.331895][ T404] 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 [ 43.351512][ T404] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 43.361057][ T404] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 43.368870][ T404] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [pid 404] <... ioctl resumed>) = 11 [pid 404] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 404] exit_group(0) = ? [pid 404] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=404, 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=0x5555572ea650) = 405 ./strace-static-x86_64: Process 405 attached [pid 405] set_robust_list(0x5555572ea660, 24) = 0 [pid 405] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 405] setpgid(0, 0) = 0 [pid 405] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 405] write(3, "1000", 4) = 4 [pid 405] close(3) = 0 [pid 405] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 405] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 405] write(4, "76", 2) = 2 [pid 405] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 405] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 405] exit_group(0) = ? [pid 405] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=405, 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=0x5555572ea650) = 406 ./strace-static-x86_64: Process 406 attached [pid 406] set_robust_list(0x5555572ea660, 24) = 0 [pid 406] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 406] setpgid(0, 0) = 0 [pid 406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 406] write(3, "1000", 4) = 4 [pid 406] close(3) = 0 [pid 406] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 406] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 406] write(4, "76", 2) = 2 [ 43.376775][ T404] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 43.384579][ T404] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 43.392389][ T404] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 43.452742][ T406] FAULT_INJECTION: forcing a failure. [ 43.452742][ T406] name failslab, interval 1, probability 0, space 0, times 0 [ 43.465222][ T406] CPU: 0 PID: 406 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 43.475214][ T406] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 43.485112][ T406] Call Trace: [ 43.488243][ T406] dump_stack_lvl+0x1e2/0x24b [ 43.492744][ T406] ? panic+0x80b/0x80b [ 43.496683][ T406] ? bfq_pos_tree_add_move+0x43b/0x43b [ 43.501947][ T406] dump_stack+0x15/0x17 [ 43.505936][ T406] should_fail+0x3c6/0x510 [ 43.510191][ T406] ? security_inode_alloc+0x29/0x120 [ 43.515312][ T406] __should_failslab+0xa4/0xe0 [ 43.519916][ T406] should_failslab+0x9/0x20 [ 43.524254][ T406] kmem_cache_alloc+0x3d/0x2e0 [ 43.528849][ T406] ? slab_post_alloc_hook+0x61/0x2f0 [ 43.533972][ T406] security_inode_alloc+0x29/0x120 [ 43.538954][ T406] inode_init_always+0x767/0x9f0 [ 43.543693][ T406] new_inode_pseudo+0x93/0x220 [ 43.548294][ T406] new_inode+0x28/0x1c0 [ 43.552372][ T406] ? start_creating+0x1d4/0x2f0 [ 43.557059][ T406] __debugfs_create_file+0x14d/0x4c0 [ 43.562195][ T406] ? up_write+0x59/0x120 [ 43.566259][ T406] debugfs_create_file+0x4a/0x60 [ 43.571037][ T406] bdi_register_va+0x2a6/0x610 [ 43.575637][ T406] bdi_register+0xd1/0x120 [ 43.579896][ T406] ? vsnprintf+0x1e1/0x1c70 [ 43.584226][ T406] ? __device_add_disk+0x552/0x11a0 [ 43.589347][ T406] ? bdi_register_va+0x610/0x610 [ 43.594122][ T406] ? __kasan_check_read+0x11/0x20 [ 43.598979][ T406] ? blk_alloc_devt+0xd7/0x330 [ 43.603579][ T406] __device_add_disk+0x5de/0x11a0 [ 43.608444][ T406] ? device_add_disk+0x40/0x40 [ 43.613039][ T406] ? vsprintf+0x40/0x40 [ 43.617034][ T406] ? device_initialize+0x1e1/0x420 [ 43.621978][ T406] device_add_disk+0x2a/0x40 [ 43.626406][ T406] loop_add+0x580/0x750 [ 43.630400][ T406] loop_control_ioctl+0x448/0x620 [ 43.635258][ T406] ? loop_remove+0xb0/0xb0 [ 43.639514][ T406] ? _raw_spin_unlock_irq+0x4e/0x70 [ 43.644546][ T406] ? ptrace_notify+0x24c/0x350 [ 43.649147][ T406] ? do_notify_parent+0xa10/0xa10 [ 43.654016][ T406] ? security_file_ioctl+0x84/0xb0 [ 43.658952][ T406] ? loop_remove+0xb0/0xb0 [ 43.663211][ T406] __se_sys_ioctl+0x114/0x190 [ 43.667721][ T406] __x64_sys_ioctl+0x7b/0x90 [ 43.672147][ T406] do_syscall_64+0x34/0x70 [ 43.676400][ T406] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 43.682127][ T406] RIP: 0033:0x7f4305d14d39 [pid 406] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 406] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 406] exit_group(0) = ? [ 43.686387][ T406] 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 [ 43.705910][ T406] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 43.714176][ T406] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 43.721963][ T406] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 43.729777][ T406] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 43.737587][ T406] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 43.745404][ T406] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 406] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=406, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 407 ./strace-static-x86_64: Process 407 attached [pid 407] set_robust_list(0x5555572ea660, 24) = 0 [pid 407] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 407] setpgid(0, 0) = 0 [pid 407] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 407] write(3, "1000", 4) = 4 [pid 407] close(3) = 0 [pid 407] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 407] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 407] write(4, "76", 2) = 2 [pid 407] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 407] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 407] exit_group(0) = ? [pid 407] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=407, 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=0x5555572ea650) = 409 ./strace-static-x86_64: Process 409 attached [pid 409] set_robust_list(0x5555572ea660, 24) = 0 [pid 409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 409] setpgid(0, 0) = 0 [pid 409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 409] write(3, "1000", 4) = 4 [pid 409] close(3) = 0 [pid 409] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 409] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 409] write(4, "76", 2) = 2 [ 43.753375][ T406] debugfs: out of free dentries, can not create file 'stats' [ 43.801389][ T409] FAULT_INJECTION: forcing a failure. [ 43.801389][ T409] name failslab, interval 1, probability 0, space 0, times 0 [ 43.813856][ T409] CPU: 0 PID: 409 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 43.823861][ T409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 43.833754][ T409] Call Trace: [ 43.836891][ T409] dump_stack_lvl+0x1e2/0x24b [ 43.841394][ T409] ? panic+0x80b/0x80b [ 43.845294][ T409] ? bfq_pos_tree_add_move+0x43b/0x43b [ 43.850599][ T409] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 43.855452][ T409] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 43.860490][ T409] dump_stack+0x15/0x17 [ 43.864482][ T409] should_fail+0x3c6/0x510 [ 43.868734][ T409] ? kobj_map+0x64/0x670 [ 43.872824][ T409] __should_failslab+0xa4/0xe0 [ 43.877408][ T409] should_failslab+0x9/0x20 [ 43.881760][ T409] __kmalloc+0x60/0x330 [ 43.885852][ T409] ? __device_add_disk+0x552/0x11a0 [ 43.890872][ T409] kobj_map+0x64/0x670 [ 43.894766][ T409] ? kobject_get+0xd1/0x120 [ 43.899110][ T409] ? exact_match+0x20/0x20 [ 43.903358][ T409] ? bdev_check_media_change+0x4d0/0x4d0 [ 43.908828][ T409] __device_add_disk+0x67b/0x11a0 [ 43.913699][ T409] ? device_add_disk+0x40/0x40 [ 43.918288][ T409] ? vsprintf+0x40/0x40 [ 43.922282][ T409] ? device_initialize+0x1e1/0x420 [ 43.927239][ T409] device_add_disk+0x2a/0x40 [ 43.931653][ T409] loop_add+0x580/0x750 [ 43.935645][ T409] loop_control_ioctl+0x448/0x620 [ 43.940514][ T409] ? loop_remove+0xb0/0xb0 [ 43.944767][ T409] ? _raw_spin_unlock_irq+0x4e/0x70 [ 43.949802][ T409] ? ptrace_notify+0x24c/0x350 [ 43.954396][ T409] ? do_notify_parent+0xa10/0xa10 [ 43.959257][ T409] ? security_file_ioctl+0x84/0xb0 [ 43.964200][ T409] ? loop_remove+0xb0/0xb0 [ 43.968468][ T409] __se_sys_ioctl+0x114/0x190 [ 43.972972][ T409] __x64_sys_ioctl+0x7b/0x90 [ 43.977392][ T409] do_syscall_64+0x34/0x70 [ 43.981649][ T409] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 43.987373][ T409] RIP: 0033:0x7f4305d14d39 [ 43.991630][ T409] 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 [ 44.011071][ T409] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.019322][ T409] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 44.027125][ T409] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 44.034937][ T409] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 44.042748][ T409] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [pid 409] ioctl(3, LOOP_CTL_ADD, 11) = 11 [ 44.050593][ T409] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 409] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 409] exit_group(0) = ? [pid 409] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=409, 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=0x5555572ea650) = 410 ./strace-static-x86_64: Process 410 attached [pid 410] set_robust_list(0x5555572ea660, 24) = 0 [pid 410] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 410] setpgid(0, 0) = 0 [pid 410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 410] write(3, "1000", 4) = 4 [pid 410] close(3) = 0 [pid 410] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 410] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 410] write(4, "76", 2) = 2 [ 44.174372][ T410] FAULT_INJECTION: forcing a failure. [ 44.174372][ T410] name failslab, interval 1, probability 0, space 0, times 0 [ 44.186847][ T410] CPU: 1 PID: 410 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 44.196846][ T410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 44.206749][ T410] Call Trace: [ 44.209872][ T410] dump_stack_lvl+0x1e2/0x24b [ 44.214377][ T410] ? panic+0x80b/0x80b [ 44.218284][ T410] ? bfq_pos_tree_add_move+0x43b/0x43b [ 44.223585][ T410] dump_stack+0x15/0x17 [ 44.227569][ T410] should_fail+0x3c6/0x510 [ 44.231828][ T410] ? security_inode_alloc+0x29/0x120 [ 44.236943][ T410] __should_failslab+0xa4/0xe0 [ 44.241553][ T410] should_failslab+0x9/0x20 [ 44.245882][ T410] kmem_cache_alloc+0x3d/0x2e0 [ 44.250486][ T410] ? slab_post_alloc_hook+0x61/0x2f0 [ 44.255618][ T410] security_inode_alloc+0x29/0x120 [ 44.260560][ T410] inode_init_always+0x767/0x9f0 [ 44.265326][ T410] new_inode_pseudo+0x93/0x220 [ 44.269929][ T410] new_inode+0x28/0x1c0 [ 44.273916][ T410] ? start_creating+0x1d4/0x2f0 [ 44.278604][ T410] __debugfs_create_file+0x14d/0x4c0 [ 44.283734][ T410] ? up_write+0x59/0x120 [ 44.287803][ T410] debugfs_create_file+0x4a/0x60 [ 44.292576][ T410] bdi_register_va+0x2a6/0x610 [ 44.297175][ T410] bdi_register+0xd1/0x120 [ 44.301429][ T410] ? vsnprintf+0x1e1/0x1c70 [ 44.305768][ T410] ? __device_add_disk+0x552/0x11a0 [ 44.310802][ T410] ? bdi_register_va+0x610/0x610 [ 44.315584][ T410] ? __kasan_check_read+0x11/0x20 [ 44.320526][ T410] ? blk_alloc_devt+0xd7/0x330 [ 44.325129][ T410] __device_add_disk+0x5de/0x11a0 [ 44.329989][ T410] ? device_add_disk+0x40/0x40 [ 44.334590][ T410] ? vsprintf+0x40/0x40 [ 44.338578][ T410] ? device_initialize+0x1e1/0x420 [ 44.343525][ T410] device_add_disk+0x2a/0x40 [ 44.347951][ T410] loop_add+0x580/0x750 [ 44.351949][ T410] loop_control_ioctl+0x448/0x620 [ 44.356805][ T410] ? loop_remove+0xb0/0xb0 [ 44.361059][ T410] ? _raw_spin_unlock_irq+0x4e/0x70 [ 44.366094][ T410] ? ptrace_notify+0x24c/0x350 [ 44.370691][ T410] ? do_notify_parent+0xa10/0xa10 [ 44.375553][ T410] ? security_file_ioctl+0x84/0xb0 [ 44.380497][ T410] ? loop_remove+0xb0/0xb0 [ 44.384751][ T410] __se_sys_ioctl+0x114/0x190 [ 44.389271][ T410] __x64_sys_ioctl+0x7b/0x90 [ 44.393692][ T410] do_syscall_64+0x34/0x70 [ 44.397947][ T410] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 44.403674][ T410] RIP: 0033:0x7f4305d14d39 [ 44.408029][ T410] 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 [ 44.427466][ T410] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.435713][ T410] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 44.443612][ T410] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 44.451419][ T410] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 44.459231][ T410] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 44.467043][ T410] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 410] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 410] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 410] exit_group(0) = ? [pid 410] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=410, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 411 ./strace-static-x86_64: Process 411 attached [pid 411] set_robust_list(0x5555572ea660, 24) = 0 [pid 411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 411] setpgid(0, 0) = 0 [pid 411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 411] write(3, "1000", 4) = 4 [pid 411] close(3) = 0 [pid 411] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 411] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 411] write(4, "76", 2) = 2 [pid 411] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 411] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 411] exit_group(0) = ? [pid 411] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=411, 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=0x5555572ea650) = 412 ./strace-static-x86_64: Process 412 attached [pid 412] set_robust_list(0x5555572ea660, 24) = 0 [pid 412] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 412] setpgid(0, 0) = 0 [pid 412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 412] write(3, "1000", 4) = 4 [pid 412] close(3) = 0 [pid 412] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 412] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 412] write(4, "76", 2) = 2 [ 44.475130][ T410] debugfs: out of free dentries, can not create file 'stats' [ 44.522625][ T412] FAULT_INJECTION: forcing a failure. [ 44.522625][ T412] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 44.535731][ T412] CPU: 0 PID: 412 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 44.545700][ T412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 44.555608][ T412] Call Trace: [ 44.558728][ T412] dump_stack_lvl+0x1e2/0x24b [ 44.563235][ T412] ? bfq_pos_tree_add_move+0x43b/0x43b [ 44.568528][ T412] dump_stack+0x15/0x17 [ 44.572521][ T412] should_fail+0x3c6/0x510 [ 44.576780][ T412] should_fail_alloc_page+0x52/0x60 [ 44.581810][ T412] __alloc_pages_nodemask+0x1b3/0xaf0 [ 44.587032][ T412] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 44.592398][ T412] ? __kasan_check_write+0x14/0x20 [ 44.597347][ T412] ? _raw_spin_lock+0xa4/0x1b0 [ 44.601950][ T412] __get_free_pages+0xe/0x30 [ 44.606405][ T412] selinux_genfs_get_sid+0x56/0x2a0 [ 44.611406][ T412] ? lockref_get+0xb4/0x110 [ 44.615743][ T412] inode_doinit_with_dentry+0x86f/0x1050 [ 44.621218][ T412] ? sb_finish_set_opts+0x7a0/0x7a0 [ 44.626255][ T412] ? current_time+0x1af/0x2f0 [ 44.630769][ T412] selinux_d_instantiate+0x27/0x40 [ 44.635703][ T412] security_d_instantiate+0x9f/0x100 [ 44.640827][ T412] d_instantiate+0x55/0x90 [ 44.645086][ T412] __debugfs_create_file+0x2e6/0x4c0 [ 44.650201][ T412] debugfs_create_file+0x4a/0x60 [ 44.654973][ T412] bdi_register_va+0x2a6/0x610 [ 44.659572][ T412] bdi_register+0xd1/0x120 [ 44.663824][ T412] ? vsnprintf+0x1e1/0x1c70 [ 44.668177][ T412] ? __device_add_disk+0x552/0x11a0 [ 44.673199][ T412] ? bdi_register_va+0x610/0x610 [ 44.677974][ T412] ? __kasan_check_read+0x11/0x20 [ 44.682833][ T412] ? blk_alloc_devt+0xd7/0x330 [ 44.687435][ T412] __device_add_disk+0x5de/0x11a0 [ 44.692298][ T412] ? device_add_disk+0x40/0x40 [ 44.696894][ T412] ? vsprintf+0x40/0x40 [ 44.700893][ T412] ? device_initialize+0x1e1/0x420 [ 44.705853][ T412] device_add_disk+0x2a/0x40 [ 44.710263][ T412] loop_add+0x580/0x750 [ 44.714373][ T412] loop_control_ioctl+0x448/0x620 [ 44.719232][ T412] ? loop_remove+0xb0/0xb0 [ 44.723477][ T412] ? _raw_spin_unlock_irq+0x4e/0x70 [ 44.728510][ T412] ? ptrace_notify+0x24c/0x350 [ 44.733108][ T412] ? do_notify_parent+0xa10/0xa10 [ 44.737981][ T412] ? security_file_ioctl+0x84/0xb0 [ 44.742914][ T412] ? loop_remove+0xb0/0xb0 [ 44.747177][ T412] __se_sys_ioctl+0x114/0x190 [ 44.751680][ T412] __x64_sys_ioctl+0x7b/0x90 [ 44.756109][ T412] do_syscall_64+0x34/0x70 [ 44.760360][ T412] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 44.766087][ T412] RIP: 0033:0x7f4305d14d39 [ 44.770348][ T412] 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 [ 44.789967][ T412] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 44.798214][ T412] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 44.806453][ T412] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 44.814273][ T412] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 412] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 412] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 412] exit_group(0) = ? [pid 412] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=412, 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 414 attached , child_tidptr=0x5555572ea650) = 414 [pid 414] set_robust_list(0x5555572ea660, 24) = 0 [pid 414] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 414] setpgid(0, 0) = 0 [pid 414] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 414] write(3, "1000", 4) = 4 [pid 414] close(3) = 0 [pid 414] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 414] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 414] write(4, "76", 2) = 2 [ 44.822127][ T412] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 44.829894][ T412] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 44.883750][ T414] FAULT_INJECTION: forcing a failure. [ 44.883750][ T414] name failslab, interval 1, probability 0, space 0, times 0 [ 44.896265][ T414] CPU: 1 PID: 414 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 44.906216][ T414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 44.916101][ T414] Call Trace: [ 44.919234][ T414] dump_stack_lvl+0x1e2/0x24b [ 44.923748][ T414] ? panic+0x80b/0x80b [ 44.927652][ T414] ? bfq_pos_tree_add_move+0x43b/0x43b [ 44.932940][ T414] dump_stack+0x15/0x17 [ 44.936935][ T414] should_fail+0x3c6/0x510 [ 44.941187][ T414] ? security_inode_alloc+0x29/0x120 [ 44.946309][ T414] __should_failslab+0xa4/0xe0 [ 44.951004][ T414] should_failslab+0x9/0x20 [ 44.955333][ T414] kmem_cache_alloc+0x3d/0x2e0 [ 44.959935][ T414] ? slab_post_alloc_hook+0x61/0x2f0 [ 44.965054][ T414] security_inode_alloc+0x29/0x120 [ 44.970006][ T414] inode_init_always+0x767/0x9f0 [ 44.974790][ T414] new_inode_pseudo+0x93/0x220 [ 44.979379][ T414] new_inode+0x28/0x1c0 [ 44.983368][ T414] ? start_creating+0x1d4/0x2f0 [ 44.988054][ T414] __debugfs_create_file+0x14d/0x4c0 [ 44.993175][ T414] ? up_write+0x59/0x120 [ 44.997255][ T414] debugfs_create_file+0x4a/0x60 [ 45.002028][ T414] bdi_register_va+0x2a6/0x610 [ 45.006629][ T414] bdi_register+0xd1/0x120 [ 45.010880][ T414] ? vsnprintf+0x1e1/0x1c70 [ 45.015221][ T414] ? __device_add_disk+0x552/0x11a0 [ 45.020253][ T414] ? bdi_register_va+0x610/0x610 [ 45.025029][ T414] ? __kasan_check_read+0x11/0x20 [ 45.029887][ T414] ? blk_alloc_devt+0xd7/0x330 [ 45.034487][ T414] __device_add_disk+0x5de/0x11a0 [ 45.039352][ T414] ? device_add_disk+0x40/0x40 [ 45.043947][ T414] ? vsprintf+0x40/0x40 [ 45.047942][ T414] ? device_initialize+0x1e1/0x420 [ 45.052886][ T414] device_add_disk+0x2a/0x40 [ 45.057315][ T414] loop_add+0x580/0x750 [ 45.061308][ T414] loop_control_ioctl+0x448/0x620 [ 45.066166][ T414] ? loop_remove+0xb0/0xb0 [ 45.070422][ T414] ? _raw_spin_unlock_irq+0x4e/0x70 [ 45.075457][ T414] ? ptrace_notify+0x24c/0x350 [ 45.080054][ T414] ? do_notify_parent+0xa10/0xa10 [ 45.084919][ T414] ? security_file_ioctl+0x84/0xb0 [ 45.089861][ T414] ? loop_remove+0xb0/0xb0 [ 45.094127][ T414] __se_sys_ioctl+0x114/0x190 [ 45.098631][ T414] __x64_sys_ioctl+0x7b/0x90 [ 45.103060][ T414] do_syscall_64+0x34/0x70 [ 45.107309][ T414] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 45.113035][ T414] RIP: 0033:0x7f4305d14d39 [ 45.117291][ T414] 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 [ 45.136732][ T414] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 45.144976][ T414] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 45.152799][ T414] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 45.160597][ T414] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 45.168409][ T414] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 45.176223][ T414] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 414] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 414] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 414] exit_group(0) = ? [pid 414] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=414, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 415 attached , child_tidptr=0x5555572ea650) = 415 [pid 415] set_robust_list(0x5555572ea660, 24) = 0 [pid 415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 415] setpgid(0, 0) = 0 [pid 415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 415] write(3, "1000", 4) = 4 [pid 415] close(3) = 0 [pid 415] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 415] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 415] write(4, "76", 2) = 2 [pid 415] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 415] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 415] exit_group(0) = ? [pid 415] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=415, 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./strace-static-x86_64: Process 416 attached , child_tidptr=0x5555572ea650) = 416 [pid 416] set_robust_list(0x5555572ea660, 24) = 0 [pid 416] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 416] setpgid(0, 0) = 0 [pid 416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 416] write(3, "1000", 4) = 4 [pid 416] close(3) = 0 [pid 416] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 416] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 416] write(4, "76", 2) = 2 [ 45.184300][ T414] debugfs: out of free dentries, can not create file 'stats' [ 45.242843][ T416] FAULT_INJECTION: forcing a failure. [ 45.242843][ T416] name failslab, interval 1, probability 0, space 0, times 0 [ 45.255294][ T416] CPU: 1 PID: 416 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 45.265310][ T416] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 45.275202][ T416] Call Trace: [ 45.278335][ T416] dump_stack_lvl+0x1e2/0x24b [ 45.282846][ T416] ? panic+0x80b/0x80b [ 45.286752][ T416] ? bfq_pos_tree_add_move+0x43b/0x43b [ 45.292045][ T416] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 45.296903][ T416] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 45.301940][ T416] dump_stack+0x15/0x17 [ 45.305929][ T416] should_fail+0x3c6/0x510 [ 45.310184][ T416] ? kobj_map+0x64/0x670 [ 45.314261][ T416] __should_failslab+0xa4/0xe0 [ 45.318862][ T416] should_failslab+0x9/0x20 [ 45.323298][ T416] __kmalloc+0x60/0x330 [ 45.327284][ T416] ? __device_add_disk+0x552/0x11a0 [ 45.332315][ T416] kobj_map+0x64/0x670 [ 45.336221][ T416] ? kobject_get+0xd1/0x120 [ 45.340559][ T416] ? exact_match+0x20/0x20 [ 45.344813][ T416] ? bdev_check_media_change+0x4d0/0x4d0 [ 45.350297][ T416] __device_add_disk+0x67b/0x11a0 [ 45.355146][ T416] ? device_add_disk+0x40/0x40 [ 45.359740][ T416] ? vsprintf+0x40/0x40 [ 45.363736][ T416] ? device_initialize+0x1e1/0x420 [ 45.368686][ T416] device_add_disk+0x2a/0x40 [ 45.373108][ T416] loop_add+0x580/0x750 [ 45.377101][ T416] loop_control_ioctl+0x448/0x620 [ 45.381967][ T416] ? loop_remove+0xb0/0xb0 [ 45.386312][ T416] ? _raw_spin_unlock_irq+0x4e/0x70 [ 45.391335][ T416] ? ptrace_notify+0x24c/0x350 [ 45.395936][ T416] ? do_notify_parent+0xa10/0xa10 [ 45.400804][ T416] ? security_file_ioctl+0x84/0xb0 [ 45.405742][ T416] ? loop_remove+0xb0/0xb0 [ 45.410063][ T416] __se_sys_ioctl+0x114/0x190 [ 45.414508][ T416] __x64_sys_ioctl+0x7b/0x90 [ 45.418940][ T416] do_syscall_64+0x34/0x70 [ 45.423188][ T416] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 45.428918][ T416] RIP: 0033:0x7f4305d14d39 [ 45.433254][ T416] 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 [ 45.452698][ T416] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 45.460943][ T416] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 45.468771][ T416] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 45.476563][ T416] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 45.484374][ T416] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [pid 416] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 416] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 416] exit_group(0) = ? [pid 416] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=416, 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=0x5555572ea650) = 417 ./strace-static-x86_64: Process 417 attached [pid 417] set_robust_list(0x5555572ea660, 24) = 0 [pid 417] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 417] setpgid(0, 0) = 0 [pid 417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 417] write(3, "1000", 4) = 4 [pid 417] close(3) = 0 [pid 417] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 417] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 417] write(4, "76", 2) = 2 [ 45.492188][ T416] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 45.554714][ T417] FAULT_INJECTION: forcing a failure. [ 45.554714][ T417] name failslab, interval 1, probability 0, space 0, times 0 [ 45.567182][ T417] CPU: 1 PID: 417 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 45.577627][ T417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 45.587518][ T417] Call Trace: [ 45.590652][ T417] dump_stack_lvl+0x1e2/0x24b [ 45.595163][ T417] ? panic+0x80b/0x80b [ 45.599060][ T417] ? bfq_pos_tree_add_move+0x43b/0x43b [ 45.604358][ T417] dump_stack+0x15/0x17 [ 45.608356][ T417] should_fail+0x3c6/0x510 [ 45.612611][ T417] ? security_inode_alloc+0x29/0x120 [ 45.617736][ T417] __should_failslab+0xa4/0xe0 [ 45.622322][ T417] should_failslab+0x9/0x20 [ 45.626665][ T417] kmem_cache_alloc+0x3d/0x2e0 [ 45.631361][ T417] ? slab_post_alloc_hook+0x61/0x2f0 [ 45.636485][ T417] security_inode_alloc+0x29/0x120 [ 45.641431][ T417] inode_init_always+0x767/0x9f0 [ 45.646216][ T417] new_inode_pseudo+0x93/0x220 [ 45.650806][ T417] new_inode+0x28/0x1c0 [ 45.654800][ T417] ? start_creating+0x1d4/0x2f0 [ 45.659485][ T417] __debugfs_create_file+0x14d/0x4c0 [ 45.664604][ T417] ? up_write+0x59/0x120 [ 45.668683][ T417] debugfs_create_file+0x4a/0x60 [ 45.673471][ T417] bdi_register_va+0x2a6/0x610 [ 45.678059][ T417] bdi_register+0xd1/0x120 [ 45.682310][ T417] ? vsnprintf+0x1e1/0x1c70 [ 45.686651][ T417] ? __device_add_disk+0x552/0x11a0 [ 45.691688][ T417] ? bdi_register_va+0x610/0x610 [ 45.696457][ T417] ? __kasan_check_read+0x11/0x20 [ 45.701317][ T417] ? blk_alloc_devt+0xd7/0x330 [ 45.705916][ T417] __device_add_disk+0x5de/0x11a0 [ 45.710833][ T417] ? device_add_disk+0x40/0x40 [ 45.715377][ T417] ? vsprintf+0x40/0x40 [ 45.719373][ T417] ? device_initialize+0x1e1/0x420 [ 45.724315][ T417] device_add_disk+0x2a/0x40 [ 45.728751][ T417] loop_add+0x580/0x750 [ 45.732739][ T417] loop_control_ioctl+0x448/0x620 [ 45.737629][ T417] ? loop_remove+0xb0/0xb0 [ 45.741851][ T417] ? _raw_spin_unlock_irq+0x4e/0x70 [ 45.746896][ T417] ? ptrace_notify+0x24c/0x350 [ 45.751483][ T417] ? do_notify_parent+0xa10/0xa10 [ 45.756372][ T417] ? security_file_ioctl+0x84/0xb0 [ 45.761295][ T417] ? loop_remove+0xb0/0xb0 [ 45.765544][ T417] __se_sys_ioctl+0x114/0x190 [ 45.770058][ T417] __x64_sys_ioctl+0x7b/0x90 [ 45.774503][ T417] do_syscall_64+0x34/0x70 [ 45.778754][ T417] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 45.784475][ T417] RIP: 0033:0x7f4305d14d39 [ 45.788722][ T417] 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 [ 45.808170][ T417] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 45.816403][ T417] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 45.824222][ T417] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 45.832029][ T417] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 45.839835][ T417] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 45.847647][ T417] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 417] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 417] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 417] exit_group(0) = ? [pid 417] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=417, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 419 attached [pid 419] set_robust_list(0x5555572ea660, 24) = 0 [pid 419] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 289] <... clone resumed>, child_tidptr=0x5555572ea650) = 419 [pid 419] setpgid(0, 0) = 0 [pid 419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 419] write(3, "1000", 4) = 4 [pid 419] close(3) = 0 [pid 419] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 419] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 419] write(4, "76", 2) = 2 [ 45.856607][ T417] debugfs: out of free dentries, can not create file 'stats' [ 45.893971][ T419] FAULT_INJECTION: forcing a failure. [ 45.893971][ T419] name failslab, interval 1, probability 0, space 0, times 0 [ 45.906569][ T419] CPU: 0 PID: 419 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 45.916605][ T419] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 45.926492][ T419] Call Trace: [ 45.929624][ T419] dump_stack_lvl+0x1e2/0x24b [ 45.934128][ T419] ? panic+0x80b/0x80b [ 45.938035][ T419] ? bfq_pos_tree_add_move+0x43b/0x43b [ 45.943336][ T419] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 45.948190][ T419] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 45.953225][ T419] dump_stack+0x15/0x17 [ 45.957225][ T419] should_fail+0x3c6/0x510 [ 45.961468][ T419] ? kobj_map+0x64/0x670 [ 45.965550][ T419] __should_failslab+0xa4/0xe0 [ 45.970150][ T419] should_failslab+0x9/0x20 [ 45.974487][ T419] __kmalloc+0x60/0x330 [ 45.978479][ T419] ? __device_add_disk+0x552/0x11a0 [ 45.983512][ T419] kobj_map+0x64/0x670 [ 45.987417][ T419] ? kobject_get+0xd1/0x120 [ 45.991763][ T419] ? exact_match+0x20/0x20 [ 45.996012][ T419] ? bdev_check_media_change+0x4d0/0x4d0 [ 46.001486][ T419] __device_add_disk+0x67b/0x11a0 [ 46.006342][ T419] ? device_add_disk+0x40/0x40 [ 46.010942][ T419] ? vsprintf+0x40/0x40 [ 46.014937][ T419] ? device_initialize+0x1e1/0x420 [ 46.019886][ T419] device_add_disk+0x2a/0x40 [ 46.024306][ T419] loop_add+0x580/0x750 [ 46.028297][ T419] loop_control_ioctl+0x448/0x620 [ 46.033158][ T419] ? loop_remove+0xb0/0xb0 [ 46.037412][ T419] ? _raw_spin_unlock_irq+0x4e/0x70 [ 46.042448][ T419] ? ptrace_notify+0x24c/0x350 [ 46.047044][ T419] ? do_notify_parent+0xa10/0xa10 [ 46.051911][ T419] ? security_file_ioctl+0x84/0xb0 [ 46.056855][ T419] ? loop_remove+0xb0/0xb0 [ 46.061109][ T419] __se_sys_ioctl+0x114/0x190 [ 46.065619][ T419] __x64_sys_ioctl+0x7b/0x90 [ 46.070048][ T419] do_syscall_64+0x34/0x70 [ 46.074323][ T419] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 46.080032][ T419] RIP: 0033:0x7f4305d14d39 [ 46.084287][ T419] 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 [pid 419] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 419] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 419] exit_group(0) = ? [pid 419] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=419, 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 420 attached , child_tidptr=0x5555572ea650) = 420 [pid 420] set_robust_list(0x5555572ea660, 24) = 0 [pid 420] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 420] setpgid(0, 0) = 0 [pid 420] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 420] write(3, "1000", 4) = 4 [pid 420] close(3) = 0 [pid 420] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 420] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 420] write(4, "76", 2) = 2 [ 46.103727][ T419] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 46.112054][ T419] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 46.119868][ T419] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 46.127698][ T419] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 46.135490][ T419] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 46.143298][ T419] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 46.192726][ T420] FAULT_INJECTION: forcing a failure. [ 46.192726][ T420] name failslab, interval 1, probability 0, space 0, times 0 [ 46.205164][ T420] CPU: 0 PID: 420 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 46.215194][ T420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 46.225086][ T420] Call Trace: [ 46.228219][ T420] dump_stack_lvl+0x1e2/0x24b [ 46.232730][ T420] ? panic+0x80b/0x80b [ 46.236632][ T420] ? bfq_pos_tree_add_move+0x43b/0x43b [ 46.241929][ T420] dump_stack+0x15/0x17 [ 46.245917][ T420] should_fail+0x3c6/0x510 [ 46.250180][ T420] ? security_inode_alloc+0x29/0x120 [ 46.255300][ T420] __should_failslab+0xa4/0xe0 [ 46.259896][ T420] should_failslab+0x9/0x20 [ 46.264232][ T420] kmem_cache_alloc+0x3d/0x2e0 [ 46.268833][ T420] ? slab_post_alloc_hook+0x61/0x2f0 [ 46.273961][ T420] security_inode_alloc+0x29/0x120 [ 46.278907][ T420] inode_init_always+0x767/0x9f0 [ 46.283677][ T420] new_inode_pseudo+0x93/0x220 [ 46.288275][ T420] new_inode+0x28/0x1c0 [ 46.292268][ T420] ? start_creating+0x1d4/0x2f0 [ 46.296967][ T420] __debugfs_create_file+0x14d/0x4c0 [ 46.302078][ T420] ? up_write+0x59/0x120 [ 46.306175][ T420] debugfs_create_file+0x4a/0x60 [ 46.310932][ T420] bdi_register_va+0x2a6/0x610 [ 46.315536][ T420] bdi_register+0xd1/0x120 [ 46.319783][ T420] ? vsnprintf+0x1e1/0x1c70 [ 46.324121][ T420] ? __device_add_disk+0x552/0x11a0 [ 46.329155][ T420] ? bdi_register_va+0x610/0x610 [ 46.333928][ T420] ? __kasan_check_read+0x11/0x20 [ 46.338790][ T420] ? blk_alloc_devt+0xd7/0x330 [ 46.343387][ T420] __device_add_disk+0x5de/0x11a0 [ 46.348256][ T420] ? device_add_disk+0x40/0x40 [ 46.352859][ T420] ? vsprintf+0x40/0x40 [ 46.356929][ T420] ? device_initialize+0x1e1/0x420 [ 46.361878][ T420] device_add_disk+0x2a/0x40 [ 46.366306][ T420] loop_add+0x580/0x750 [ 46.370302][ T420] loop_control_ioctl+0x448/0x620 [ 46.375153][ T420] ? loop_remove+0xb0/0xb0 [ 46.379408][ T420] ? _raw_spin_unlock_irq+0x4e/0x70 [ 46.384445][ T420] ? ptrace_notify+0x24c/0x350 [ 46.389044][ T420] ? do_notify_parent+0xa10/0xa10 [ 46.393905][ T420] ? security_file_ioctl+0x84/0xb0 [ 46.398848][ T420] ? loop_remove+0xb0/0xb0 [ 46.403103][ T420] __se_sys_ioctl+0x114/0x190 [ 46.407616][ T420] __x64_sys_ioctl+0x7b/0x90 [ 46.412049][ T420] do_syscall_64+0x34/0x70 [ 46.416296][ T420] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 46.422021][ T420] RIP: 0033:0x7f4305d14d39 [ 46.426277][ T420] 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 [ 46.445741][ T420] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 46.453964][ T420] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 46.461875][ T420] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 46.469681][ T420] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 46.477498][ T420] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 46.485302][ T420] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 420] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 420] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 420] exit_group(0) = ? [pid 420] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=420, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 421 ./strace-static-x86_64: Process 421 attached [pid 421] set_robust_list(0x5555572ea660, 24) = 0 [pid 421] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 421] setpgid(0, 0) = 0 [pid 421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 421] write(3, "1000", 4) = 4 [pid 421] close(3) = 0 [pid 421] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 421] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 421] write(4, "76", 2) = 2 [pid 421] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 421] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 421] exit_group(0) = ? [pid 421] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=421, 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=0x5555572ea650) = 422 ./strace-static-x86_64: Process 422 attached [pid 422] set_robust_list(0x5555572ea660, 24) = 0 [pid 422] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 422] setpgid(0, 0) = 0 [pid 422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 422] write(3, "1000", 4) = 4 [pid 422] close(3) = 0 [pid 422] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 422] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 422] write(4, "76", 2) = 2 [ 46.493324][ T420] debugfs: out of free dentries, can not create file 'stats' [ 46.522505][ T422] FAULT_INJECTION: forcing a failure. [ 46.522505][ T422] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 46.535620][ T422] CPU: 0 PID: 422 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 46.545675][ T422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 46.555558][ T422] Call Trace: [ 46.558702][ T422] dump_stack_lvl+0x1e2/0x24b [ 46.563209][ T422] ? bfq_pos_tree_add_move+0x43b/0x43b [ 46.568656][ T422] ? __kasan_check_write+0x14/0x20 [ 46.573568][ T422] ? _raw_spin_lock+0xa4/0x1b0 [ 46.578163][ T422] dump_stack+0x15/0x17 [ 46.582158][ T422] should_fail+0x3c6/0x510 [ 46.586405][ T422] should_fail_alloc_page+0x52/0x60 [ 46.591442][ T422] __alloc_pages_nodemask+0x1b3/0xaf0 [ 46.596650][ T422] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 46.602038][ T422] ? _raw_spin_unlock+0x4d/0x70 [ 46.606726][ T422] ? __d_add+0x4e9/0x800 [ 46.610796][ T422] ? __kasan_check_write+0x14/0x20 [ 46.615742][ T422] new_slab+0x80/0x400 [ 46.619655][ T422] ___slab_alloc+0x302/0x4b0 [ 46.624075][ T422] ? new_inode_pseudo+0x7c/0x220 [ 46.628974][ T422] __slab_alloc+0x63/0xa0 [ 46.633131][ T422] ? new_inode_pseudo+0x7c/0x220 [ 46.637907][ T422] ? new_inode_pseudo+0x7c/0x220 [ 46.642692][ T422] kmem_cache_alloc+0x1b9/0x2e0 [ 46.647367][ T422] ? new_inode_pseudo+0x7c/0x220 [ 46.652139][ T422] new_inode_pseudo+0x7c/0x220 [ 46.656827][ T422] new_inode+0x28/0x1c0 [ 46.660819][ T422] ? start_creating+0x1d4/0x2f0 [ 46.665506][ T422] __debugfs_create_file+0x14d/0x4c0 [ 46.670627][ T422] ? up_write+0x59/0x120 [ 46.674706][ T422] debugfs_create_file+0x4a/0x60 [ 46.679487][ T422] bdi_register_va+0x2a6/0x610 [ 46.684078][ T422] bdi_register+0xd1/0x120 [ 46.688334][ T422] ? vsnprintf+0x1e1/0x1c70 [ 46.692673][ T422] ? __device_add_disk+0x552/0x11a0 [ 46.697890][ T422] ? bdi_register_va+0x610/0x610 [ 46.702675][ T422] ? __kasan_check_read+0x11/0x20 [ 46.707514][ T422] ? blk_alloc_devt+0xd7/0x330 [ 46.712117][ T422] __device_add_disk+0x5de/0x11a0 [ 46.716985][ T422] ? device_add_disk+0x40/0x40 [ 46.721577][ T422] ? vsprintf+0x40/0x40 [ 46.725571][ T422] ? device_initialize+0x1e1/0x420 [ 46.730615][ T422] device_add_disk+0x2a/0x40 [ 46.735029][ T422] loop_add+0x580/0x750 [ 46.739022][ T422] loop_control_ioctl+0x448/0x620 [ 46.743881][ T422] ? loop_remove+0xb0/0xb0 [ 46.748134][ T422] ? _raw_spin_unlock_irq+0x4e/0x70 [ 46.753168][ T422] ? ptrace_notify+0x24c/0x350 [ 46.757770][ T422] ? do_notify_parent+0xa10/0xa10 [ 46.762633][ T422] ? security_file_ioctl+0x84/0xb0 [ 46.767582][ T422] ? loop_remove+0xb0/0xb0 [ 46.771828][ T422] __se_sys_ioctl+0x114/0x190 [ 46.776430][ T422] __x64_sys_ioctl+0x7b/0x90 [ 46.780865][ T422] do_syscall_64+0x34/0x70 [ 46.785108][ T422] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 46.790835][ T422] RIP: 0033:0x7f4305d14d39 [ 46.795087][ T422] 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 [ 46.814531][ T422] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 46.822774][ T422] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 46.830586][ T422] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [pid 422] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 422] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 422] exit_group(0) = ? [pid 422] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=422, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 424 attached , child_tidptr=0x5555572ea650) = 424 [pid 424] set_robust_list(0x5555572ea660, 24) = 0 [pid 424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 424] setpgid(0, 0) = 0 [pid 424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 424] write(3, "1000", 4) = 4 [pid 424] close(3) = 0 [pid 424] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 424] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 424] write(4, "76", 2) = 2 [ 46.838491][ T422] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 46.846308][ T422] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 46.854107][ T422] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 46.904895][ T424] FAULT_INJECTION: forcing a failure. [ 46.904895][ T424] name failslab, interval 1, probability 0, space 0, times 0 [ 46.917504][ T424] CPU: 1 PID: 424 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 46.927452][ T424] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 46.937431][ T424] Call Trace: [ 46.940565][ T424] dump_stack_lvl+0x1e2/0x24b [ 46.945073][ T424] ? panic+0x80b/0x80b [ 46.948987][ T424] ? bfq_pos_tree_add_move+0x43b/0x43b [ 46.954275][ T424] dump_stack+0x15/0x17 [ 46.958264][ T424] should_fail+0x3c6/0x510 [ 46.962529][ T424] ? security_inode_alloc+0x29/0x120 [ 46.967641][ T424] __should_failslab+0xa4/0xe0 [ 46.972240][ T424] should_failslab+0x9/0x20 [ 46.976583][ T424] kmem_cache_alloc+0x3d/0x2e0 [ 46.981179][ T424] ? slab_post_alloc_hook+0x61/0x2f0 [ 46.986300][ T424] security_inode_alloc+0x29/0x120 [ 46.991248][ T424] inode_init_always+0x767/0x9f0 [ 46.996020][ T424] new_inode_pseudo+0x93/0x220 [ 47.000621][ T424] new_inode+0x28/0x1c0 [ 47.004614][ T424] ? start_creating+0x1d4/0x2f0 [ 47.009298][ T424] __debugfs_create_file+0x14d/0x4c0 [ 47.014425][ T424] ? up_write+0x59/0x120 [ 47.018511][ T424] debugfs_create_file+0x4a/0x60 [ 47.023373][ T424] bdi_register_va+0x2a6/0x610 [ 47.028107][ T424] bdi_register+0xd1/0x120 [ 47.032336][ T424] ? vsnprintf+0x1e1/0x1c70 [ 47.036754][ T424] ? __device_add_disk+0x552/0x11a0 [ 47.042008][ T424] ? bdi_register_va+0x610/0x610 [ 47.046765][ T424] ? __kasan_check_read+0x11/0x20 [ 47.051635][ T424] ? blk_alloc_devt+0xd7/0x330 [ 47.056226][ T424] __device_add_disk+0x5de/0x11a0 [ 47.061102][ T424] ? device_add_disk+0x40/0x40 [ 47.065813][ T424] ? vsprintf+0x40/0x40 [ 47.069808][ T424] ? device_initialize+0x1e1/0x420 [ 47.074743][ T424] device_add_disk+0x2a/0x40 [ 47.079184][ T424] loop_add+0x580/0x750 [ 47.083158][ T424] loop_control_ioctl+0x448/0x620 [ 47.088017][ T424] ? loop_remove+0xb0/0xb0 [ 47.092276][ T424] ? _raw_spin_unlock_irq+0x4e/0x70 [ 47.097327][ T424] ? ptrace_notify+0x24c/0x350 [ 47.101910][ T424] ? do_notify_parent+0xa10/0xa10 [ 47.106980][ T424] ? security_file_ioctl+0x84/0xb0 [ 47.111911][ T424] ? loop_remove+0xb0/0xb0 [ 47.116163][ T424] __se_sys_ioctl+0x114/0x190 [ 47.120674][ T424] __x64_sys_ioctl+0x7b/0x90 [ 47.125109][ T424] do_syscall_64+0x34/0x70 [ 47.129367][ T424] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 47.135081][ T424] RIP: 0033:0x7f4305d14d39 [ 47.139333][ T424] 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 [ 47.158777][ T424] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 47.167019][ T424] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 47.174918][ T424] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 47.182905][ T424] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 47.190721][ T424] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 47.198526][ T424] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 424] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 424] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 424] exit_group(0) = ? [pid 424] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=424, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 425 ./strace-static-x86_64: Process 425 attached [pid 425] set_robust_list(0x5555572ea660, 24) = 0 [pid 425] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 425] setpgid(0, 0) = 0 [pid 425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 425] write(3, "1000", 4) = 4 [pid 425] close(3) = 0 [pid 425] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 425] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 425] write(4, "76", 2) = 2 [ 47.206626][ T424] debugfs: out of free dentries, can not create file 'stats' [ 47.264280][ T425] FAULT_INJECTION: forcing a failure. [ 47.264280][ T425] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 47.277444][ T425] CPU: 0 PID: 425 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 47.287531][ T425] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 47.297428][ T425] Call Trace: [ 47.300557][ T425] dump_stack_lvl+0x1e2/0x24b [ 47.305063][ T425] ? bfq_pos_tree_add_move+0x43b/0x43b [ 47.310363][ T425] dump_stack+0x15/0x17 [ 47.314357][ T425] should_fail+0x3c6/0x510 [ 47.318610][ T425] should_fail_alloc_page+0x52/0x60 [ 47.323642][ T425] __alloc_pages_nodemask+0x1b3/0xaf0 [ 47.328864][ T425] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 47.334226][ T425] ? __kasan_check_write+0x14/0x20 [ 47.339179][ T425] ? _raw_spin_lock+0xa4/0x1b0 [ 47.343860][ T425] __get_free_pages+0xe/0x30 [ 47.348286][ T425] selinux_genfs_get_sid+0x56/0x2a0 [ 47.353326][ T425] ? lockref_get+0xb4/0x110 [ 47.357692][ T425] inode_doinit_with_dentry+0x86f/0x1050 [ 47.363129][ T425] ? sb_finish_set_opts+0x7a0/0x7a0 [ 47.368163][ T425] ? current_time+0x1af/0x2f0 [ 47.372680][ T425] selinux_d_instantiate+0x27/0x40 [ 47.377625][ T425] security_d_instantiate+0x9f/0x100 [ 47.382757][ T425] d_instantiate+0x55/0x90 [ 47.386997][ T425] __debugfs_create_file+0x2e6/0x4c0 [ 47.392117][ T425] debugfs_create_file+0x4a/0x60 [ 47.396890][ T425] bdi_register_va+0x2a6/0x610 [ 47.401488][ T425] bdi_register+0xd1/0x120 [ 47.405741][ T425] ? vsnprintf+0x1e1/0x1c70 [ 47.410083][ T425] ? __device_add_disk+0x552/0x11a0 [ 47.415116][ T425] ? bdi_register_va+0x610/0x610 [ 47.419892][ T425] ? __kasan_check_read+0x11/0x20 [ 47.424758][ T425] ? blk_alloc_devt+0xd7/0x330 [ 47.429359][ T425] __device_add_disk+0x5de/0x11a0 [ 47.434297][ T425] ? device_add_disk+0x40/0x40 [ 47.438896][ T425] ? vsprintf+0x40/0x40 [ 47.442889][ T425] ? device_initialize+0x1e1/0x420 [ 47.447838][ T425] device_add_disk+0x2a/0x40 [ 47.452265][ T425] loop_add+0x580/0x750 [ 47.456263][ T425] loop_control_ioctl+0x448/0x620 [ 47.461117][ T425] ? loop_remove+0xb0/0xb0 [ 47.465374][ T425] ? _raw_spin_unlock_irq+0x4e/0x70 [ 47.470406][ T425] ? ptrace_notify+0x24c/0x350 [ 47.475010][ T425] ? do_notify_parent+0xa10/0xa10 [ 47.479864][ T425] ? security_file_ioctl+0x84/0xb0 [ 47.484810][ T425] ? loop_remove+0xb0/0xb0 [ 47.489072][ T425] __se_sys_ioctl+0x114/0x190 [ 47.493576][ T425] __x64_sys_ioctl+0x7b/0x90 [ 47.498006][ T425] do_syscall_64+0x34/0x70 [ 47.502266][ T425] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 47.507987][ T425] RIP: 0033:0x7f4305d14d39 [ 47.512238][ T425] 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 [ 47.531682][ T425] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 47.539925][ T425] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 47.547739][ T425] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 47.555545][ T425] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 425] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 425] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 425] exit_group(0) = ? [pid 425] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=425, 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=0x5555572ea650) = 426 ./strace-static-x86_64: Process 426 attached [pid 426] set_robust_list(0x5555572ea660, 24) = 0 [pid 426] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 426] setpgid(0, 0) = 0 [pid 426] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 426] write(3, "1000", 4) = 4 [pid 426] close(3) = 0 [pid 426] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 426] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 426] write(4, "76", 2) = 2 [ 47.563358][ T425] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 47.571169][ T425] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 47.603947][ T426] FAULT_INJECTION: forcing a failure. [ 47.603947][ T426] name failslab, interval 1, probability 0, space 0, times 0 [ 47.616484][ T426] CPU: 0 PID: 426 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 47.626408][ T426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 47.636303][ T426] Call Trace: [ 47.639439][ T426] dump_stack_lvl+0x1e2/0x24b [ 47.643943][ T426] ? panic+0x80b/0x80b [ 47.647851][ T426] ? bfq_pos_tree_add_move+0x43b/0x43b [ 47.653143][ T426] dump_stack+0x15/0x17 [ 47.657137][ T426] should_fail+0x3c6/0x510 [ 47.661391][ T426] ? security_inode_alloc+0x29/0x120 [ 47.666509][ T426] __should_failslab+0xa4/0xe0 [ 47.671114][ T426] should_failslab+0x9/0x20 [ 47.675450][ T426] kmem_cache_alloc+0x3d/0x2e0 [ 47.680051][ T426] ? slab_post_alloc_hook+0x61/0x2f0 [ 47.685173][ T426] security_inode_alloc+0x29/0x120 [ 47.690122][ T426] inode_init_always+0x767/0x9f0 [ 47.694896][ T426] new_inode_pseudo+0x93/0x220 [ 47.699490][ T426] new_inode+0x28/0x1c0 [ 47.703487][ T426] ? start_creating+0x1d4/0x2f0 [ 47.708178][ T426] __debugfs_create_file+0x14d/0x4c0 [ 47.713297][ T426] ? up_write+0x59/0x120 [ 47.717375][ T426] debugfs_create_file+0x4a/0x60 [ 47.722200][ T426] bdi_register_va+0x2a6/0x610 [ 47.726841][ T426] bdi_register+0xd1/0x120 [ 47.731101][ T426] ? vsnprintf+0x1e1/0x1c70 [ 47.735430][ T426] ? __device_add_disk+0x552/0x11a0 [ 47.740468][ T426] ? bdi_register_va+0x610/0x610 [ 47.745244][ T426] ? __kasan_check_read+0x11/0x20 [ 47.750183][ T426] ? blk_alloc_devt+0xd7/0x330 [ 47.754786][ T426] __device_add_disk+0x5de/0x11a0 [ 47.759647][ T426] ? device_add_disk+0x40/0x40 [ 47.764241][ T426] ? vsprintf+0x40/0x40 [ 47.768235][ T426] ? device_initialize+0x1e1/0x420 [ 47.773181][ T426] device_add_disk+0x2a/0x40 [ 47.777616][ T426] loop_add+0x580/0x750 [ 47.781599][ T426] loop_control_ioctl+0x448/0x620 [ 47.786459][ T426] ? loop_remove+0xb0/0xb0 [ 47.790717][ T426] ? _raw_spin_unlock_irq+0x4e/0x70 [ 47.795748][ T426] ? ptrace_notify+0x24c/0x350 [ 47.800357][ T426] ? do_notify_parent+0xa10/0xa10 [ 47.805214][ T426] ? security_file_ioctl+0x84/0xb0 [ 47.810155][ T426] ? loop_remove+0xb0/0xb0 [ 47.814409][ T426] __se_sys_ioctl+0x114/0x190 [ 47.818921][ T426] __x64_sys_ioctl+0x7b/0x90 [ 47.823351][ T426] do_syscall_64+0x34/0x70 [ 47.827604][ T426] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 47.833329][ T426] RIP: 0033:0x7f4305d14d39 [ 47.837589][ T426] 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 [ 47.857125][ T426] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [pid 426] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 426] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 426] exit_group(0) = ? [pid 426] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=426, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 428 attached [pid 428] set_robust_list(0x5555572ea660, 24) = 0 [pid 428] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 289] <... clone resumed>, child_tidptr=0x5555572ea650) = 428 [pid 428] <... prctl resumed>) = 0 [pid 428] setpgid(0, 0) = 0 [pid 428] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 428] write(3, "1000", 4) = 4 [pid 428] close(3) = 0 [pid 428] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 428] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 428] write(4, "76", 2) = 2 [pid 428] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 428] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 428] exit_group(0) = ? [pid 428] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=428, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 429 attached , child_tidptr=0x5555572ea650) = 429 [pid 429] set_robust_list(0x5555572ea660, 24) = 0 [pid 429] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 429] setpgid(0, 0) = 0 [pid 429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 429] write(3, "1000", 4) = 4 [pid 429] close(3) = 0 [pid 429] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 429] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 429] write(4, "76", 2) = 2 [ 47.865379][ T426] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 47.873173][ T426] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 47.880979][ T426] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 47.888789][ T426] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 47.896746][ T426] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 47.904736][ T426] debugfs: out of free dentries, can not create file 'stats' [ 47.943292][ T429] FAULT_INJECTION: forcing a failure. [ 47.943292][ T429] name failslab, interval 1, probability 0, space 0, times 0 [ 47.955928][ T429] CPU: 0 PID: 429 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 47.965965][ T429] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 47.975866][ T429] Call Trace: [ 47.978990][ T429] dump_stack_lvl+0x1e2/0x24b [ 47.983586][ T429] ? panic+0x80b/0x80b [ 47.987490][ T429] ? bfq_pos_tree_add_move+0x43b/0x43b [ 47.992788][ T429] dump_stack+0x15/0x17 [ 47.996776][ T429] should_fail+0x3c6/0x510 [ 48.001058][ T429] ? security_inode_alloc+0x29/0x120 [ 48.006244][ T429] __should_failslab+0xa4/0xe0 [ 48.010856][ T429] should_failslab+0x9/0x20 [ 48.015178][ T429] kmem_cache_alloc+0x3d/0x2e0 [ 48.019779][ T429] ? slab_post_alloc_hook+0x61/0x2f0 [ 48.024901][ T429] security_inode_alloc+0x29/0x120 [ 48.029847][ T429] inode_init_always+0x767/0x9f0 [ 48.034627][ T429] new_inode_pseudo+0x93/0x220 [ 48.039225][ T429] new_inode+0x28/0x1c0 [ 48.043212][ T429] ? start_creating+0x1d4/0x2f0 [ 48.047899][ T429] __debugfs_create_file+0x14d/0x4c0 [ 48.053019][ T429] ? up_write+0x59/0x120 [ 48.057185][ T429] debugfs_create_file+0x4a/0x60 [ 48.061960][ T429] bdi_register_va+0x2a6/0x610 [ 48.066559][ T429] bdi_register+0xd1/0x120 [ 48.070811][ T429] ? vsnprintf+0x1e1/0x1c70 [ 48.075150][ T429] ? __device_add_disk+0x552/0x11a0 [ 48.080184][ T429] ? bdi_register_va+0x610/0x610 [ 48.084959][ T429] ? __kasan_check_read+0x11/0x20 [ 48.089826][ T429] ? blk_alloc_devt+0xd7/0x330 [ 48.094424][ T429] __device_add_disk+0x5de/0x11a0 [ 48.099280][ T429] ? device_add_disk+0x40/0x40 [ 48.103878][ T429] ? vsprintf+0x40/0x40 [ 48.107874][ T429] ? device_initialize+0x1e1/0x420 [ 48.112820][ T429] device_add_disk+0x2a/0x40 [ 48.117250][ T429] loop_add+0x580/0x750 [ 48.121266][ T429] loop_control_ioctl+0x448/0x620 [ 48.126099][ T429] ? loop_remove+0xb0/0xb0 [ 48.130700][ T429] ? _raw_spin_unlock_irq+0x4e/0x70 [ 48.135736][ T429] ? ptrace_notify+0x24c/0x350 [ 48.140333][ T429] ? do_notify_parent+0xa10/0xa10 [ 48.145199][ T429] ? security_file_ioctl+0x84/0xb0 [ 48.150143][ T429] ? loop_remove+0xb0/0xb0 [ 48.154393][ T429] __se_sys_ioctl+0x114/0x190 [ 48.158908][ T429] __x64_sys_ioctl+0x7b/0x90 [ 48.163335][ T429] do_syscall_64+0x34/0x70 [ 48.167589][ T429] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 48.173324][ T429] RIP: 0033:0x7f4305d14d39 [ 48.177569][ T429] 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 [ 48.197022][ T429] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 48.205258][ T429] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 48.213066][ T429] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 48.220878][ T429] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 48.228865][ T429] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 48.236680][ T429] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 429] ioctl(3, LOOP_CTL_ADD, 11) = 11 [ 48.245918][ T429] debugfs: out of free dentries, can not create file 'stats' [pid 429] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 429] exit_group(0) = ? [pid 429] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=429, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 430 ./strace-static-x86_64: Process 430 attached [pid 430] set_robust_list(0x5555572ea660, 24) = 0 [pid 430] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 430] setpgid(0, 0) = 0 [pid 430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 430] write(3, "1000", 4) = 4 [pid 430] close(3) = 0 [pid 430] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 430] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 430] write(4, "76", 2) = 2 [ 48.373196][ T430] FAULT_INJECTION: forcing a failure. [ 48.373196][ T430] name failslab, interval 1, probability 0, space 0, times 0 [ 48.385636][ T430] CPU: 0 PID: 430 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 48.395664][ T430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 48.405564][ T430] Call Trace: [ 48.408697][ T430] dump_stack_lvl+0x1e2/0x24b [ 48.413200][ T430] ? panic+0x80b/0x80b [ 48.417193][ T430] ? bfq_pos_tree_add_move+0x43b/0x43b [ 48.422488][ T430] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 48.427346][ T430] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 48.432465][ T430] dump_stack+0x15/0x17 [ 48.436459][ T430] should_fail+0x3c6/0x510 [ 48.440716][ T430] ? kobj_map+0x64/0x670 [ 48.444797][ T430] __should_failslab+0xa4/0xe0 [ 48.449394][ T430] should_failslab+0x9/0x20 [ 48.453727][ T430] __kmalloc+0x60/0x330 [ 48.457730][ T430] ? __device_add_disk+0x552/0x11a0 [ 48.462765][ T430] kobj_map+0x64/0x670 [ 48.466659][ T430] ? kobject_get+0xd1/0x120 [ 48.471017][ T430] ? exact_match+0x20/0x20 [ 48.475266][ T430] ? bdev_check_media_change+0x4d0/0x4d0 [ 48.480732][ T430] __device_add_disk+0x67b/0x11a0 [ 48.485606][ T430] ? device_add_disk+0x40/0x40 [ 48.490196][ T430] ? vsprintf+0x40/0x40 [ 48.494190][ T430] ? device_initialize+0x1e1/0x420 [ 48.499125][ T430] device_add_disk+0x2a/0x40 [ 48.503556][ T430] loop_add+0x580/0x750 [ 48.507544][ T430] loop_control_ioctl+0x448/0x620 [ 48.512401][ T430] ? loop_remove+0xb0/0xb0 [ 48.516655][ T430] ? _raw_spin_unlock_irq+0x4e/0x70 [ 48.521690][ T430] ? ptrace_notify+0x24c/0x350 [ 48.526385][ T430] ? do_notify_parent+0xa10/0xa10 [ 48.531238][ T430] ? security_file_ioctl+0x84/0xb0 [ 48.536184][ T430] ? loop_remove+0xb0/0xb0 [ 48.540438][ T430] __se_sys_ioctl+0x114/0x190 [ 48.544948][ T430] __x64_sys_ioctl+0x7b/0x90 [ 48.549380][ T430] do_syscall_64+0x34/0x70 [ 48.553664][ T430] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 48.559360][ T430] RIP: 0033:0x7f4305d14d39 [ 48.563612][ T430] 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 [ 48.583050][ T430] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 48.591298][ T430] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 48.599108][ T430] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 48.606920][ T430] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 48.614732][ T430] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [pid 430] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 430] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 430] exit_group(0) = ? [pid 430] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=430, 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=0x5555572ea650) = 431 ./strace-static-x86_64: Process 431 attached [pid 431] set_robust_list(0x5555572ea660, 24) = 0 [pid 431] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 431] setpgid(0, 0) = 0 [pid 431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 431] write(3, "1000", 4) = 4 [pid 431] close(3) = 0 [pid 431] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 431] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 431] write(4, "76", 2) = 2 [ 48.623401][ T430] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 48.676206][ T431] FAULT_INJECTION: forcing a failure. [ 48.676206][ T431] name failslab, interval 1, probability 0, space 0, times 0 [ 48.688795][ T431] CPU: 0 PID: 431 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 48.698833][ T431] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 48.708819][ T431] Call Trace: [ 48.711950][ T431] dump_stack_lvl+0x1e2/0x24b [ 48.716453][ T431] ? panic+0x80b/0x80b [ 48.720361][ T431] ? bfq_pos_tree_add_move+0x43b/0x43b [ 48.725661][ T431] dump_stack+0x15/0x17 [ 48.729645][ T431] should_fail+0x3c6/0x510 [ 48.733909][ T431] ? security_inode_alloc+0x29/0x120 [ 48.739025][ T431] __should_failslab+0xa4/0xe0 [ 48.743625][ T431] should_failslab+0x9/0x20 [ 48.747973][ T431] kmem_cache_alloc+0x3d/0x2e0 [ 48.752562][ T431] ? slab_post_alloc_hook+0x61/0x2f0 [ 48.757729][ T431] security_inode_alloc+0x29/0x120 [ 48.762633][ T431] inode_init_always+0x767/0x9f0 [ 48.767418][ T431] new_inode_pseudo+0x93/0x220 [ 48.772011][ T431] new_inode+0x28/0x1c0 [ 48.776011][ T431] ? start_creating+0x1d4/0x2f0 [ 48.780690][ T431] __debugfs_create_file+0x14d/0x4c0 [ 48.785804][ T431] ? up_write+0x59/0x120 [ 48.789895][ T431] debugfs_create_file+0x4a/0x60 [ 48.794658][ T431] bdi_register_va+0x2a6/0x610 [ 48.799263][ T431] bdi_register+0xd1/0x120 [ 48.803516][ T431] ? vsnprintf+0x1e1/0x1c70 [ 48.807864][ T431] ? __device_add_disk+0x552/0x11a0 [ 48.812894][ T431] ? bdi_register_va+0x610/0x610 [ 48.817671][ T431] ? __kasan_check_read+0x11/0x20 [ 48.822515][ T431] ? blk_alloc_devt+0xd7/0x330 [ 48.827115][ T431] __device_add_disk+0x5de/0x11a0 [ 48.831978][ T431] ? device_add_disk+0x40/0x40 [ 48.836577][ T431] ? vsprintf+0x40/0x40 [ 48.840570][ T431] ? device_initialize+0x1e1/0x420 [ 48.845518][ T431] device_add_disk+0x2a/0x40 [ 48.850029][ T431] loop_add+0x580/0x750 [ 48.854023][ T431] loop_control_ioctl+0x448/0x620 [ 48.858880][ T431] ? loop_remove+0xb0/0xb0 [ 48.863136][ T431] ? _raw_spin_unlock_irq+0x4e/0x70 [ 48.868169][ T431] ? ptrace_notify+0x24c/0x350 [ 48.872769][ T431] ? do_notify_parent+0xa10/0xa10 [ 48.877632][ T431] ? security_file_ioctl+0x84/0xb0 [ 48.882576][ T431] ? loop_remove+0xb0/0xb0 [ 48.886855][ T431] __se_sys_ioctl+0x114/0x190 [ 48.891349][ T431] __x64_sys_ioctl+0x7b/0x90 [ 48.895772][ T431] do_syscall_64+0x34/0x70 [ 48.900197][ T431] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 48.905923][ T431] RIP: 0033:0x7f4305d14d39 [pid 431] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 431] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [ 48.910184][ T431] 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 [ 48.929621][ T431] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 48.937862][ T431] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 48.945674][ T431] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 48.953496][ T431] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 48.961302][ T431] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 48.969110][ T431] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 431] exit_group(0) = ? [pid 431] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=431, 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=0x5555572ea650) = 433 ./strace-static-x86_64: Process 433 attached [pid 433] set_robust_list(0x5555572ea660, 24) = 0 [pid 433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 433] setpgid(0, 0) = 0 [pid 433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 433] write(3, "1000", 4) = 4 [pid 433] close(3) = 0 [pid 433] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 433] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 433] write(4, "76", 2) = 2 [pid 433] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 433] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 433] exit_group(0) = ? [pid 433] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=433, 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./strace-static-x86_64: Process 434 attached , child_tidptr=0x5555572ea650) = 434 [pid 434] set_robust_list(0x5555572ea660, 24) = 0 [pid 434] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 434] setpgid(0, 0) = 0 [pid 434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 434] write(3, "1000", 4) = 4 [pid 434] close(3) = 0 [pid 434] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 434] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 434] write(4, "76", 2) = 2 [ 48.977270][ T431] debugfs: out of free dentries, can not create file 'stats' [ 49.024277][ T434] FAULT_INJECTION: forcing a failure. [ 49.024277][ T434] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 49.037354][ T434] CPU: 0 PID: 434 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 49.047347][ T434] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 49.057243][ T434] Call Trace: [ 49.060375][ T434] dump_stack_lvl+0x1e2/0x24b [ 49.064886][ T434] ? bfq_pos_tree_add_move+0x43b/0x43b [ 49.070181][ T434] dump_stack+0x15/0x17 [ 49.074169][ T434] should_fail+0x3c6/0x510 [ 49.078425][ T434] should_fail_alloc_page+0x52/0x60 [ 49.083456][ T434] __alloc_pages_nodemask+0x1b3/0xaf0 [ 49.088664][ T434] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 49.094047][ T434] ? __kasan_check_write+0x14/0x20 [ 49.098993][ T434] ? _raw_spin_lock+0xa4/0x1b0 [ 49.103596][ T434] __get_free_pages+0xe/0x30 [ 49.108018][ T434] selinux_genfs_get_sid+0x56/0x2a0 [ 49.113064][ T434] ? lockref_get+0xb4/0x110 [ 49.117828][ T434] inode_doinit_with_dentry+0x86f/0x1050 [ 49.123295][ T434] ? sb_finish_set_opts+0x7a0/0x7a0 [ 49.128330][ T434] ? current_time+0x1af/0x2f0 [ 49.132841][ T434] selinux_d_instantiate+0x27/0x40 [ 49.137808][ T434] security_d_instantiate+0x9f/0x100 [ 49.142921][ T434] d_instantiate+0x55/0x90 [ 49.147167][ T434] __debugfs_create_file+0x2e6/0x4c0 [ 49.152284][ T434] debugfs_create_file+0x4a/0x60 [ 49.157058][ T434] bdi_register_va+0x2a6/0x610 [ 49.161655][ T434] bdi_register+0xd1/0x120 [ 49.165909][ T434] ? vsnprintf+0x1e1/0x1c70 [ 49.170248][ T434] ? __device_add_disk+0x552/0x11a0 [ 49.175285][ T434] ? bdi_register_va+0x610/0x610 [ 49.180058][ T434] ? __kasan_check_read+0x11/0x20 [ 49.184918][ T434] ? blk_alloc_devt+0xd7/0x330 [ 49.189516][ T434] __device_add_disk+0x5de/0x11a0 [ 49.194379][ T434] ? device_add_disk+0x40/0x40 [ 49.198976][ T434] ? vsprintf+0x40/0x40 [ 49.202968][ T434] ? device_initialize+0x1e1/0x420 [ 49.207920][ T434] device_add_disk+0x2a/0x40 [ 49.212343][ T434] loop_add+0x580/0x750 [ 49.216336][ T434] loop_control_ioctl+0x448/0x620 [ 49.221196][ T434] ? loop_remove+0xb0/0xb0 [ 49.225451][ T434] ? _raw_spin_unlock_irq+0x4e/0x70 [ 49.230483][ T434] ? ptrace_notify+0x24c/0x350 [ 49.235083][ T434] ? do_notify_parent+0xa10/0xa10 [ 49.239946][ T434] ? security_file_ioctl+0x84/0xb0 [ 49.244888][ T434] ? loop_remove+0xb0/0xb0 [ 49.249154][ T434] __se_sys_ioctl+0x114/0x190 [ 49.253666][ T434] __x64_sys_ioctl+0x7b/0x90 [ 49.258084][ T434] do_syscall_64+0x34/0x70 [ 49.262337][ T434] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 49.268066][ T434] RIP: 0033:0x7f4305d14d39 [ 49.272321][ T434] 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 [ 49.291765][ T434] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 49.300005][ T434] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 49.307814][ T434] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 49.315629][ T434] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 434] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 434] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 434] exit_group(0) = ? [pid 434] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=434, 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=0x5555572ea650) = 435 ./strace-static-x86_64: Process 435 attached [pid 435] set_robust_list(0x5555572ea660, 24) = 0 [pid 435] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 435] setpgid(0, 0) = 0 [pid 435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 435] write(3, "1000", 4) = 4 [pid 435] close(3) = 0 [pid 435] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 435] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 435] write(4, "76", 2) = 2 [ 49.323534][ T434] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 49.331596][ T434] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 49.382825][ T435] FAULT_INJECTION: forcing a failure. [ 49.382825][ T435] name failslab, interval 1, probability 0, space 0, times 0 [ 49.395296][ T435] CPU: 0 PID: 435 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 49.405289][ T435] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 49.415185][ T435] Call Trace: [ 49.418325][ T435] dump_stack_lvl+0x1e2/0x24b [ 49.422912][ T435] ? panic+0x80b/0x80b [ 49.426826][ T435] ? bfq_pos_tree_add_move+0x43b/0x43b [ 49.432113][ T435] dump_stack+0x15/0x17 [ 49.436108][ T435] should_fail+0x3c6/0x510 [ 49.440360][ T435] ? security_inode_alloc+0x29/0x120 [ 49.445479][ T435] __should_failslab+0xa4/0xe0 [ 49.450121][ T435] should_failslab+0x9/0x20 [ 49.454416][ T435] kmem_cache_alloc+0x3d/0x2e0 [ 49.459035][ T435] ? slab_post_alloc_hook+0x61/0x2f0 [ 49.464151][ T435] security_inode_alloc+0x29/0x120 [ 49.469087][ T435] inode_init_always+0x767/0x9f0 [ 49.473867][ T435] new_inode_pseudo+0x93/0x220 [ 49.478458][ T435] new_inode+0x28/0x1c0 [ 49.482459][ T435] ? start_creating+0x1d4/0x2f0 [ 49.487139][ T435] __debugfs_create_file+0x14d/0x4c0 [ 49.492262][ T435] ? up_write+0x59/0x120 [ 49.496349][ T435] debugfs_create_file+0x4a/0x60 [ 49.501121][ T435] bdi_register_va+0x2a6/0x610 [ 49.505722][ T435] bdi_register+0xd1/0x120 [ 49.509972][ T435] ? vsnprintf+0x1e1/0x1c70 [ 49.514307][ T435] ? __device_add_disk+0x552/0x11a0 [ 49.519340][ T435] ? bdi_register_va+0x610/0x610 [ 49.524117][ T435] ? __kasan_check_read+0x11/0x20 [ 49.528974][ T435] ? blk_alloc_devt+0xd7/0x330 [ 49.533577][ T435] __device_add_disk+0x5de/0x11a0 [ 49.538441][ T435] ? device_add_disk+0x40/0x40 [ 49.543046][ T435] ? vsprintf+0x40/0x40 [ 49.547026][ T435] ? device_initialize+0x1e1/0x420 [ 49.551984][ T435] device_add_disk+0x2a/0x40 [ 49.556403][ T435] loop_add+0x580/0x750 [ 49.560391][ T435] loop_control_ioctl+0x448/0x620 [ 49.565253][ T435] ? loop_remove+0xb0/0xb0 [ 49.569514][ T435] ? _raw_spin_unlock_irq+0x4e/0x70 [ 49.574540][ T435] ? ptrace_notify+0x24c/0x350 [ 49.579141][ T435] ? do_notify_parent+0xa10/0xa10 [ 49.584014][ T435] ? security_file_ioctl+0x84/0xb0 [ 49.588948][ T435] ? loop_remove+0xb0/0xb0 [ 49.593199][ T435] __se_sys_ioctl+0x114/0x190 [ 49.597714][ T435] __x64_sys_ioctl+0x7b/0x90 [ 49.602155][ T435] do_syscall_64+0x34/0x70 [ 49.606403][ T435] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 49.612127][ T435] RIP: 0033:0x7f4305d14d39 [ 49.616381][ T435] 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 [ 49.636077][ T435] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 49.644325][ T435] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 49.652134][ T435] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 49.660032][ T435] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 49.667852][ T435] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 49.675651][ T435] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 435] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 435] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 435] exit_group(0) = ? [pid 435] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=435, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 436 ./strace-static-x86_64: Process 436 attached [pid 436] set_robust_list(0x5555572ea660, 24) = 0 [pid 436] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 436] setpgid(0, 0) = 0 [pid 436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 436] write(3, "1000", 4) = 4 [pid 436] close(3) = 0 [pid 436] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 436] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 436] write(4, "76", 2) = 2 [ 49.683531][ T435] debugfs: out of free dentries, can not create file 'stats' [ 49.733977][ T436] FAULT_INJECTION: forcing a failure. [ 49.733977][ T436] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 49.747096][ T436] CPU: 0 PID: 436 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 49.757101][ T436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 49.766981][ T436] Call Trace: [ 49.770082][ T436] dump_stack_lvl+0x1e2/0x24b [ 49.774591][ T436] ? bfq_pos_tree_add_move+0x43b/0x43b [ 49.779892][ T436] dump_stack+0x15/0x17 [ 49.783873][ T436] should_fail+0x3c6/0x510 [ 49.788134][ T436] should_fail_alloc_page+0x52/0x60 [ 49.793164][ T436] __alloc_pages_nodemask+0x1b3/0xaf0 [ 49.798370][ T436] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 49.803750][ T436] ? __kasan_check_write+0x14/0x20 [ 49.808702][ T436] ? _raw_spin_lock+0xa4/0x1b0 [ 49.813298][ T436] __get_free_pages+0xe/0x30 [ 49.817725][ T436] selinux_genfs_get_sid+0x56/0x2a0 [ 49.822775][ T436] ? lockref_get+0xb4/0x110 [ 49.827099][ T436] inode_doinit_with_dentry+0x86f/0x1050 [ 49.832573][ T436] ? sb_finish_set_opts+0x7a0/0x7a0 [ 49.837606][ T436] ? current_time+0x1af/0x2f0 [ 49.842112][ T436] selinux_d_instantiate+0x27/0x40 [ 49.847067][ T436] security_d_instantiate+0x9f/0x100 [ 49.852184][ T436] d_instantiate+0x55/0x90 [ 49.856435][ T436] __debugfs_create_file+0x2e6/0x4c0 [ 49.861555][ T436] debugfs_create_file+0x4a/0x60 [ 49.866328][ T436] bdi_register_va+0x2a6/0x610 [ 49.870926][ T436] bdi_register+0xd1/0x120 [ 49.875177][ T436] ? vsnprintf+0x1e1/0x1c70 [ 49.879520][ T436] ? __device_add_disk+0x552/0x11a0 [ 49.884553][ T436] ? bdi_register_va+0x610/0x610 [ 49.889327][ T436] ? __kasan_check_read+0x11/0x20 [ 49.894185][ T436] ? blk_alloc_devt+0xd7/0x330 [ 49.898786][ T436] __device_add_disk+0x5de/0x11a0 [ 49.903648][ T436] ? device_add_disk+0x40/0x40 [ 49.908247][ T436] ? vsprintf+0x40/0x40 [ 49.912240][ T436] ? device_initialize+0x1e1/0x420 [ 49.917186][ T436] device_add_disk+0x2a/0x40 [ 49.921616][ T436] loop_add+0x580/0x750 [ 49.925607][ T436] loop_control_ioctl+0x448/0x620 [ 49.930465][ T436] ? loop_remove+0xb0/0xb0 [ 49.934721][ T436] ? _raw_spin_unlock_irq+0x4e/0x70 [ 49.939754][ T436] ? ptrace_notify+0x24c/0x350 [ 49.944354][ T436] ? do_notify_parent+0xa10/0xa10 [ 49.949215][ T436] ? security_file_ioctl+0x84/0xb0 [ 49.954160][ T436] ? loop_remove+0xb0/0xb0 [ 49.958415][ T436] __se_sys_ioctl+0x114/0x190 [ 49.962925][ T436] __x64_sys_ioctl+0x7b/0x90 [ 49.967368][ T436] do_syscall_64+0x34/0x70 [ 49.971608][ T436] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 49.977338][ T436] RIP: 0033:0x7f4305d14d39 [ 49.981593][ T436] 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 [ 50.001126][ T436] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 50.009363][ T436] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 50.017170][ T436] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 50.024984][ T436] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 436] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 436] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 436] exit_group(0) = ? [pid 436] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=436, 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 438 attached , child_tidptr=0x5555572ea650) = 438 [pid 438] set_robust_list(0x5555572ea660, 24) = 0 [pid 438] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 438] setpgid(0, 0) = 0 [pid 438] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 438] write(3, "1000", 4) = 4 [pid 438] close(3) = 0 [pid 438] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 438] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 438] write(4, "76", 2) = 2 [ 50.032793][ T436] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 50.040608][ T436] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 50.083649][ T438] FAULT_INJECTION: forcing a failure. [ 50.083649][ T438] name failslab, interval 1, probability 0, space 0, times 0 [ 50.096200][ T438] CPU: 0 PID: 438 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 50.106229][ T438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 50.116122][ T438] Call Trace: [ 50.119257][ T438] dump_stack_lvl+0x1e2/0x24b [ 50.123857][ T438] ? bfq_pos_tree_add_move+0x43b/0x43b [ 50.129150][ T438] ? stack_trace_save+0x113/0x1c0 [ 50.134016][ T438] dump_stack+0x15/0x17 [ 50.138001][ T438] should_fail+0x3c6/0x510 [ 50.142254][ T438] ? __d_alloc+0x2d/0x6c0 [ 50.146418][ T438] __should_failslab+0xa4/0xe0 [ 50.151019][ T438] should_failslab+0x9/0x20 [ 50.155378][ T438] kmem_cache_alloc+0x3d/0x2e0 [ 50.159960][ T438] __d_alloc+0x2d/0x6c0 [ 50.163949][ T438] d_alloc_parallel+0xe7/0x12f0 [ 50.168639][ T438] ? avc_denied+0x1b0/0x1b0 [ 50.172975][ T438] ? slab_post_alloc_hook+0x61/0x2f0 [ 50.178105][ T438] ? selinux_inode_permission+0x449/0x690 [ 50.183653][ T438] ? d_hash_and_lookup+0x1e0/0x1e0 [ 50.188603][ T438] ? selinux_inode_follow_link+0x3c0/0x3c0 [ 50.194241][ T438] ? __kasan_check_write+0x14/0x20 [ 50.199624][ T438] ? _raw_spin_lock+0xa4/0x1b0 [ 50.204275][ T438] ? _raw_spin_trylock_bh+0x190/0x190 [ 50.209436][ T438] __lookup_slow+0x154/0x400 [ 50.213859][ T438] ? lookup_one_len+0x2c0/0x2c0 [ 50.218545][ T438] ? lookup_one_len_common+0x2f1/0x450 [ 50.223838][ T438] lookup_one_len+0x180/0x2c0 [ 50.228354][ T438] ? __kasan_check_write+0x14/0x20 [ 50.233299][ T438] ? lookup_one_len_common+0x450/0x450 [ 50.238595][ T438] ? simple_pin_fs+0x99/0x160 [ 50.243108][ T438] start_creating+0x161/0x2f0 [ 50.247630][ T438] __debugfs_create_file+0x75/0x4c0 [ 50.252654][ T438] ? up_write+0x59/0x120 [ 50.256732][ T438] debugfs_create_file+0x4a/0x60 [ 50.261520][ T438] bdi_register_va+0x2a6/0x610 [ 50.266117][ T438] bdi_register+0xd1/0x120 [ 50.270448][ T438] ? vsnprintf+0x1e1/0x1c70 [ 50.274793][ T438] ? __device_add_disk+0x552/0x11a0 [ 50.279827][ T438] ? bdi_register_va+0x610/0x610 [ 50.284603][ T438] ? __kasan_check_read+0x11/0x20 [ 50.289455][ T438] ? blk_alloc_devt+0xd7/0x330 [ 50.294054][ T438] __device_add_disk+0x5de/0x11a0 [ 50.299002][ T438] ? device_add_disk+0x40/0x40 [ 50.303601][ T438] ? vsprintf+0x40/0x40 [ 50.307598][ T438] ? device_initialize+0x1e1/0x420 [ 50.312543][ T438] device_add_disk+0x2a/0x40 [ 50.316975][ T438] loop_add+0x580/0x750 [ 50.320962][ T438] loop_control_ioctl+0x448/0x620 [ 50.325821][ T438] ? loop_remove+0xb0/0xb0 [ 50.330074][ T438] ? _raw_spin_unlock_irq+0x4e/0x70 [ 50.335110][ T438] ? ptrace_notify+0x24c/0x350 [ 50.339709][ T438] ? do_notify_parent+0xa10/0xa10 [ 50.344571][ T438] ? security_file_ioctl+0x84/0xb0 [ 50.349515][ T438] ? loop_remove+0xb0/0xb0 [ 50.353857][ T438] __se_sys_ioctl+0x114/0x190 [ 50.358369][ T438] __x64_sys_ioctl+0x7b/0x90 [ 50.362884][ T438] do_syscall_64+0x34/0x70 [ 50.367136][ T438] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 50.372863][ T438] RIP: 0033:0x7f4305d14d39 [ 50.377376][ T438] 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 [ 50.396816][ T438] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 50.405062][ T438] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 50.412872][ T438] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 50.420683][ T438] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 438] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 438] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 438] exit_group(0) = ? [pid 438] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=438, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 439 ./strace-static-x86_64: Process 439 attached [pid 439] set_robust_list(0x5555572ea660, 24) = 0 [pid 439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 439] setpgid(0, 0) = 0 [pid 439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 439] write(3, "1000", 4) = 4 [pid 439] close(3) = 0 [pid 439] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [ 50.428498][ T438] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 50.436308][ T438] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 439] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 439] write(4, "76", 2) = 2 [ 50.506081][ T439] FAULT_INJECTION: forcing a failure. [ 50.506081][ T439] name failslab, interval 1, probability 0, space 0, times 0 [ 50.518575][ T439] CPU: 1 PID: 439 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 50.528662][ T439] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 50.538556][ T439] Call Trace: [ 50.541687][ T439] dump_stack_lvl+0x1e2/0x24b [ 50.546220][ T439] ? panic+0x80b/0x80b [ 50.550230][ T439] ? bfq_pos_tree_add_move+0x43b/0x43b [ 50.555516][ T439] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 50.560477][ T439] ? _raw_spin_lock_irq+0x1b0/0x1b0 [ 50.565498][ T439] dump_stack+0x15/0x17 [ 50.569484][ T439] should_fail+0x3c6/0x510 [ 50.573747][ T439] ? kobj_map+0x64/0x670 [ 50.577822][ T439] __should_failslab+0xa4/0xe0 [ 50.582419][ T439] should_failslab+0x9/0x20 [ 50.586756][ T439] __kmalloc+0x60/0x330 [ 50.590748][ T439] ? __device_add_disk+0x552/0x11a0 [ 50.595974][ T439] kobj_map+0x64/0x670 [ 50.599862][ T439] ? kobject_get+0xd1/0x120 [ 50.604202][ T439] ? exact_match+0x20/0x20 [ 50.608456][ T439] ? bdev_check_media_change+0x4d0/0x4d0 [ 50.613925][ T439] __device_add_disk+0x67b/0x11a0 [ 50.618799][ T439] ? device_add_disk+0x40/0x40 [ 50.623384][ T439] ? vsprintf+0x40/0x40 [ 50.627377][ T439] ? device_initialize+0x1e1/0x420 [ 50.632410][ T439] device_add_disk+0x2a/0x40 [ 50.636836][ T439] loop_add+0x580/0x750 [ 50.640830][ T439] loop_control_ioctl+0x448/0x620 [ 50.645687][ T439] ? loop_remove+0xb0/0xb0 [ 50.649942][ T439] ? _raw_spin_unlock_irq+0x4e/0x70 [ 50.654976][ T439] ? ptrace_notify+0x24c/0x350 [ 50.659580][ T439] ? do_notify_parent+0xa10/0xa10 [ 50.664439][ T439] ? security_file_ioctl+0x84/0xb0 [ 50.669386][ T439] ? loop_remove+0xb0/0xb0 [ 50.673635][ T439] __se_sys_ioctl+0x114/0x190 [ 50.678156][ T439] __x64_sys_ioctl+0x7b/0x90 [ 50.682579][ T439] do_syscall_64+0x34/0x70 [ 50.686968][ T439] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 50.692671][ T439] RIP: 0033:0x7f4305d14d39 [ 50.696924][ T439] 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 [ 50.716366][ T439] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 50.724621][ T439] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 50.732514][ T439] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 50.740411][ T439] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 50.748216][ T439] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [pid 439] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 439] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 439] exit_group(0) = ? [pid 439] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=439, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 440 attached , child_tidptr=0x5555572ea650) = 440 [pid 440] set_robust_list(0x5555572ea660, 24) = 0 [pid 440] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 440] setpgid(0, 0) = 0 [pid 440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 440] write(3, "1000", 4) = 4 [pid 440] close(3) = 0 [pid 440] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 440] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 440] write(4, "76", 2) = 2 [ 50.756488][ T439] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 50.824774][ T440] FAULT_INJECTION: forcing a failure. [ 50.824774][ T440] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 50.837991][ T440] CPU: 1 PID: 440 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 50.848042][ T440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 50.857934][ T440] Call Trace: [ 50.861061][ T440] dump_stack_lvl+0x1e2/0x24b [ 50.865565][ T440] ? bfq_pos_tree_add_move+0x43b/0x43b [ 50.870858][ T440] dump_stack+0x15/0x17 [ 50.874936][ T440] should_fail+0x3c6/0x510 [ 50.879198][ T440] should_fail_alloc_page+0x52/0x60 [ 50.884223][ T440] __alloc_pages_nodemask+0x1b3/0xaf0 [ 50.889442][ T440] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 50.894815][ T440] ? __kasan_check_write+0x14/0x20 [ 50.899759][ T440] ? _raw_spin_lock+0xa4/0x1b0 [ 50.904361][ T440] __get_free_pages+0xe/0x30 [ 50.908787][ T440] selinux_genfs_get_sid+0x56/0x2a0 [ 50.913821][ T440] ? lockref_get+0xb4/0x110 [ 50.918161][ T440] inode_doinit_with_dentry+0x86f/0x1050 [ 50.923631][ T440] ? sb_finish_set_opts+0x7a0/0x7a0 [ 50.928662][ T440] ? current_time+0x1af/0x2f0 [ 50.933175][ T440] selinux_d_instantiate+0x27/0x40 [ 50.938129][ T440] security_d_instantiate+0x9f/0x100 [ 50.943241][ T440] d_instantiate+0x55/0x90 [ 50.947499][ T440] __debugfs_create_file+0x2e6/0x4c0 [ 50.952617][ T440] debugfs_create_file+0x4a/0x60 [ 50.957392][ T440] bdi_register_va+0x2a6/0x610 [ 50.961997][ T440] bdi_register+0xd1/0x120 [ 50.966245][ T440] ? vsnprintf+0x1e1/0x1c70 [ 50.970591][ T440] ? __device_add_disk+0x552/0x11a0 [ 50.975629][ T440] ? bdi_register_va+0x610/0x610 [ 50.980393][ T440] ? __kasan_check_read+0x11/0x20 [ 50.985251][ T440] ? blk_alloc_devt+0xd7/0x330 [ 50.989850][ T440] __device_add_disk+0x5de/0x11a0 [ 50.994713][ T440] ? device_add_disk+0x40/0x40 [ 50.999311][ T440] ? vsprintf+0x40/0x40 [ 51.003304][ T440] ? device_initialize+0x1e1/0x420 [ 51.008352][ T440] device_add_disk+0x2a/0x40 [ 51.012765][ T440] loop_add+0x580/0x750 [ 51.016768][ T440] loop_control_ioctl+0x448/0x620 [ 51.021617][ T440] ? loop_remove+0xb0/0xb0 [ 51.025878][ T440] ? _raw_spin_unlock_irq+0x4e/0x70 [ 51.030903][ T440] ? ptrace_notify+0x24c/0x350 [ 51.035504][ T440] ? do_notify_parent+0xa10/0xa10 [ 51.040365][ T440] ? security_file_ioctl+0x84/0xb0 [ 51.045312][ T440] ? loop_remove+0xb0/0xb0 [ 51.049662][ T440] __se_sys_ioctl+0x114/0x190 [ 51.054173][ T440] __x64_sys_ioctl+0x7b/0x90 [ 51.058604][ T440] do_syscall_64+0x34/0x70 [ 51.062857][ T440] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 51.068581][ T440] RIP: 0033:0x7f4305d14d39 [ 51.072834][ T440] 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 [ 51.092366][ T440] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 51.100695][ T440] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 51.108505][ T440] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 51.116317][ T440] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 440] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 440] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 440] exit_group(0) = ? [pid 440] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=440, 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=0x5555572ea650) = 442 ./strace-static-x86_64: Process 442 attached [pid 442] set_robust_list(0x5555572ea660, 24) = 0 [pid 442] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 442] setpgid(0, 0) = 0 [pid 442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 442] write(3, "1000", 4) = 4 [pid 442] close(3) = 0 [pid 442] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 442] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 442] write(4, "76", 2) = 2 [pid 442] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 442] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 442] exit_group(0) = ? [pid 442] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=442, 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./strace-static-x86_64: Process 443 attached [pid 443] set_robust_list(0x5555572ea660, 24) = 0 [pid 443] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 443] setpgid(0, 0) = 0 [pid 443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 443] write(3, "1000", 4) = 4 [pid 443] close(3) = 0 [pid 443] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 443] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 443] write(4, "76", 2) = 2 [pid 443] ioctl(3, LOOP_CTL_ADD, 11 [pid 289] <... clone resumed>, child_tidptr=0x5555572ea650) = 443 [ 51.124131][ T440] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 51.131940][ T440] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 51.172637][ T443] FAULT_INJECTION: forcing a failure. [ 51.172637][ T443] name failslab, interval 1, probability 0, space 0, times 0 [ 51.185085][ T443] CPU: 0 PID: 443 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 51.195108][ T443] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 51.205092][ T443] Call Trace: [ 51.208228][ T443] dump_stack_lvl+0x1e2/0x24b [ 51.212739][ T443] ? panic+0x80b/0x80b [ 51.216637][ T443] ? bfq_pos_tree_add_move+0x43b/0x43b [ 51.221938][ T443] dump_stack+0x15/0x17 [ 51.225923][ T443] should_fail+0x3c6/0x510 [ 51.230184][ T443] ? security_inode_alloc+0x29/0x120 [ 51.235299][ T443] __should_failslab+0xa4/0xe0 [ 51.239903][ T443] should_failslab+0x9/0x20 [ 51.244244][ T443] kmem_cache_alloc+0x3d/0x2e0 [ 51.248858][ T443] ? slab_post_alloc_hook+0x61/0x2f0 [ 51.253959][ T443] security_inode_alloc+0x29/0x120 [ 51.258907][ T443] inode_init_always+0x767/0x9f0 [ 51.263682][ T443] new_inode_pseudo+0x93/0x220 [ 51.268278][ T443] new_inode+0x28/0x1c0 [ 51.272286][ T443] ? start_creating+0x1d4/0x2f0 [ 51.276966][ T443] __debugfs_create_file+0x14d/0x4c0 [ 51.282082][ T443] ? up_write+0x59/0x120 [ 51.286161][ T443] debugfs_create_file+0x4a/0x60 [ 51.290935][ T443] bdi_register_va+0x2a6/0x610 [ 51.295541][ T443] bdi_register+0xd1/0x120 [ 51.299784][ T443] ? vsnprintf+0x1e1/0x1c70 [ 51.304135][ T443] ? __device_add_disk+0x552/0x11a0 [ 51.309164][ T443] ? bdi_register_va+0x610/0x610 [ 51.313939][ T443] ? __kasan_check_read+0x11/0x20 [ 51.318794][ T443] ? blk_alloc_devt+0xd7/0x330 [ 51.323394][ T443] __device_add_disk+0x5de/0x11a0 [ 51.328262][ T443] ? device_add_disk+0x40/0x40 [ 51.332858][ T443] ? vsprintf+0x40/0x40 [ 51.336855][ T443] ? device_initialize+0x1e1/0x420 [ 51.341793][ T443] device_add_disk+0x2a/0x40 [ 51.346228][ T443] loop_add+0x580/0x750 [ 51.350215][ T443] loop_control_ioctl+0x448/0x620 [ 51.355072][ T443] ? loop_remove+0xb0/0xb0 [ 51.359326][ T443] ? _raw_spin_unlock_irq+0x4e/0x70 [ 51.364446][ T443] ? ptrace_notify+0x24c/0x350 [ 51.369050][ T443] ? do_notify_parent+0xa10/0xa10 [ 51.373912][ T443] ? security_file_ioctl+0x84/0xb0 [ 51.378949][ T443] ? loop_remove+0xb0/0xb0 [ 51.383193][ T443] __se_sys_ioctl+0x114/0x190 [ 51.387711][ T443] __x64_sys_ioctl+0x7b/0x90 [ 51.392134][ T443] do_syscall_64+0x34/0x70 [ 51.396390][ T443] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 51.402115][ T443] RIP: 0033:0x7f4305d14d39 [ 51.406366][ T443] 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 [ 51.425811][ T443] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 51.434055][ T443] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 51.442388][ T443] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 51.450204][ T443] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 51.458009][ T443] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 51.465916][ T443] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [pid 443] <... ioctl resumed>) = 11 [pid 443] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 443] exit_group(0) = ? [pid 443] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=443, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 444 ./strace-static-x86_64: Process 444 attached [pid 444] set_robust_list(0x5555572ea660, 24) = 0 [pid 444] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 444] setpgid(0, 0) = 0 [pid 444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 444] write(3, "1000", 4) = 4 [pid 444] close(3) = 0 [pid 444] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 444] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 444] write(4, "76", 2) = 2 [ 51.473891][ T443] debugfs: out of free dentries, can not create file 'stats' [ 51.533499][ T444] FAULT_INJECTION: forcing a failure. [ 51.533499][ T444] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 51.546635][ T444] CPU: 0 PID: 444 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 51.556663][ T444] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 51.566556][ T444] Call Trace: [ 51.569724][ T444] dump_stack_lvl+0x1e2/0x24b [ 51.574197][ T444] ? bfq_pos_tree_add_move+0x43b/0x43b [ 51.579490][ T444] dump_stack+0x15/0x17 [ 51.583493][ T444] should_fail+0x3c6/0x510 [ 51.587737][ T444] should_fail_alloc_page+0x52/0x60 [ 51.592776][ T444] __alloc_pages_nodemask+0x1b3/0xaf0 [ 51.597980][ T444] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 51.603366][ T444] ? __kasan_check_write+0x14/0x20 [ 51.608303][ T444] ? _raw_spin_lock+0xa4/0x1b0 [ 51.612901][ T444] __get_free_pages+0xe/0x30 [ 51.617340][ T444] selinux_genfs_get_sid+0x56/0x2a0 [ 51.622364][ T444] ? lockref_get+0xb4/0x110 [ 51.626713][ T444] inode_doinit_with_dentry+0x86f/0x1050 [ 51.632617][ T444] ? sb_finish_set_opts+0x7a0/0x7a0 [ 51.637643][ T444] ? current_time+0x1af/0x2f0 [ 51.642153][ T444] selinux_d_instantiate+0x27/0x40 [ 51.647100][ T444] security_d_instantiate+0x9f/0x100 [ 51.652220][ T444] d_instantiate+0x55/0x90 [ 51.656476][ T444] __debugfs_create_file+0x2e6/0x4c0 [ 51.661606][ T444] debugfs_create_file+0x4a/0x60 [ 51.666393][ T444] bdi_register_va+0x2a6/0x610 [ 51.670977][ T444] bdi_register+0xd1/0x120 [ 51.675220][ T444] ? vsnprintf+0x1e1/0x1c70 [ 51.679561][ T444] ? __device_add_disk+0x552/0x11a0 [ 51.684596][ T444] ? bdi_register_va+0x610/0x610 [ 51.689376][ T444] ? __kasan_check_read+0x11/0x20 [ 51.694250][ T444] ? blk_alloc_devt+0xd7/0x330 [ 51.698839][ T444] __device_add_disk+0x5de/0x11a0 [ 51.703695][ T444] ? device_add_disk+0x40/0x40 [ 51.708291][ T444] ? vsprintf+0x40/0x40 [ 51.712284][ T444] ? device_initialize+0x1e1/0x420 [ 51.717230][ T444] device_add_disk+0x2a/0x40 [ 51.721658][ T444] loop_add+0x580/0x750 [ 51.725659][ T444] loop_control_ioctl+0x448/0x620 [ 51.730509][ T444] ? loop_remove+0xb0/0xb0 [ 51.734763][ T444] ? _raw_spin_unlock_irq+0x4e/0x70 [ 51.739797][ T444] ? ptrace_notify+0x24c/0x350 [ 51.744396][ T444] ? do_notify_parent+0xa10/0xa10 [ 51.749260][ T444] ? security_file_ioctl+0x84/0xb0 [ 51.754529][ T444] ? loop_remove+0xb0/0xb0 [ 51.758759][ T444] __se_sys_ioctl+0x114/0x190 [ 51.763287][ T444] __x64_sys_ioctl+0x7b/0x90 [ 51.767701][ T444] do_syscall_64+0x34/0x70 [ 51.771956][ T444] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 51.777678][ T444] RIP: 0033:0x7f4305d14d39 [ 51.781930][ T444] 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 [ 51.801384][ T444] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 51.809628][ T444] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 51.817436][ T444] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 51.825257][ T444] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 444] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 444] ioctl(3, LOOP_CTL_REMOVE, 11) = -1 EBUSY (Device or resource busy) [pid 444] exit_group(0) = ? [pid 444] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=444, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555572ea650) = 445 ./strace-static-x86_64: Process 445 attached [pid 445] set_robust_list(0x5555572ea660, 24) = 0 [pid 445] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 445] setpgid(0, 0) = 0 [pid 445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 445] write(3, "1000", 4) = 4 [pid 445] close(3) = 0 [pid 445] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 445] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 445] write(4, "76", 2) = 2 [pid 445] ioctl(3, LOOP_CTL_ADD, 11) = -1 EEXIST (File exists) [pid 445] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 445] exit_group(0) = ? [pid 445] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=445, 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=0x5555572ea650) = 446 ./strace-static-x86_64: Process 446 attached [pid 446] set_robust_list(0x5555572ea660, 24) = 0 [pid 446] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 446] setpgid(0, 0) = 0 [pid 446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 446] write(3, "1000", 4) = 4 [pid 446] close(3) = 0 [pid 446] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 446] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 446] write(4, "76", 2) = 2 [ 51.833059][ T444] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 51.840863][ T444] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 51.902638][ T446] FAULT_INJECTION: forcing a failure. [ 51.902638][ T446] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 51.915766][ T446] CPU: 0 PID: 446 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 51.925715][ T446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 51.935613][ T446] Call Trace: [ 51.938741][ T446] dump_stack_lvl+0x1e2/0x24b [ 51.943251][ T446] ? bfq_pos_tree_add_move+0x43b/0x43b [ 51.948554][ T446] dump_stack+0x15/0x17 [ 51.952533][ T446] should_fail+0x3c6/0x510 [ 51.956881][ T446] should_fail_alloc_page+0x52/0x60 [ 51.961996][ T446] __alloc_pages_nodemask+0x1b3/0xaf0 [ 51.967222][ T446] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 51.972586][ T446] ? __kasan_check_write+0x14/0x20 [ 51.977533][ T446] ? _raw_spin_lock+0xa4/0x1b0 [ 51.982133][ T446] __get_free_pages+0xe/0x30 [ 51.986561][ T446] selinux_genfs_get_sid+0x56/0x2a0 [ 51.991595][ T446] ? lockref_get+0xb4/0x110 [ 51.995934][ T446] inode_doinit_with_dentry+0x86f/0x1050 [ 52.001407][ T446] ? sb_finish_set_opts+0x7a0/0x7a0 [ 52.006434][ T446] ? current_time+0x1af/0x2f0 [ 52.010947][ T446] selinux_d_instantiate+0x27/0x40 [ 52.015894][ T446] security_d_instantiate+0x9f/0x100 [ 52.021015][ T446] d_instantiate+0x55/0x90 [ 52.025275][ T446] __debugfs_create_file+0x2e6/0x4c0 [ 52.030403][ T446] debugfs_create_file+0x4a/0x60 [ 52.035171][ T446] bdi_register_va+0x2a6/0x610 [ 52.039768][ T446] bdi_register+0xd1/0x120 [ 52.044019][ T446] ? vsnprintf+0x1e1/0x1c70 [ 52.048355][ T446] ? __device_add_disk+0x552/0x11a0 [ 52.053391][ T446] ? bdi_register_va+0x610/0x610 [ 52.058162][ T446] ? __kasan_check_read+0x11/0x20 [ 52.063025][ T446] ? blk_alloc_devt+0xd7/0x330 [ 52.067623][ T446] __device_add_disk+0x5de/0x11a0 [ 52.072492][ T446] ? device_add_disk+0x40/0x40 [ 52.077085][ T446] ? vsprintf+0x40/0x40 [ 52.081080][ T446] ? device_initialize+0x1e1/0x420 [ 52.086029][ T446] device_add_disk+0x2a/0x40 [ 52.090450][ T446] loop_add+0x580/0x750 [ 52.094441][ T446] loop_control_ioctl+0x448/0x620 [ 52.099302][ T446] ? loop_remove+0xb0/0xb0 [ 52.103557][ T446] ? _raw_spin_unlock_irq+0x4e/0x70 [ 52.108591][ T446] ? ptrace_notify+0x24c/0x350 [ 52.113190][ T446] ? do_notify_parent+0xa10/0xa10 [ 52.118055][ T446] ? security_file_ioctl+0x84/0xb0 [ 52.122997][ T446] ? loop_remove+0xb0/0xb0 [ 52.127255][ T446] __se_sys_ioctl+0x114/0x190 [ 52.131763][ T446] __x64_sys_ioctl+0x7b/0x90 [ 52.136195][ T446] do_syscall_64+0x34/0x70 [ 52.140453][ T446] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 52.146181][ T446] RIP: 0033:0x7f4305d14d39 [ 52.150428][ T446] 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 [ 52.170475][ T446] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 52.178717][ T446] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 52.186527][ T446] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 52.194341][ T446] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 446] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 446] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 446] exit_group(0) = ? [pid 446] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=446, 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=0x5555572ea650) = 448 ./strace-static-x86_64: Process 448 attached [pid 448] set_robust_list(0x5555572ea660, 24) = 0 [pid 448] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 448] setpgid(0, 0) = 0 [pid 448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 448] write(3, "1000", 4) = 4 [pid 448] close(3) = 0 [pid 448] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 448] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 448] write(4, "76", 2) = 2 [ 52.202150][ T446] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 52.209981][ T446] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 52.263293][ T448] FAULT_INJECTION: forcing a failure. [ 52.263293][ T448] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 52.276446][ T448] CPU: 1 PID: 448 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 52.286483][ T448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 52.296385][ T448] Call Trace: [ 52.299509][ T448] dump_stack_lvl+0x1e2/0x24b [ 52.304021][ T448] ? bfq_pos_tree_add_move+0x43b/0x43b [ 52.309398][ T448] dump_stack+0x15/0x17 [ 52.313386][ T448] should_fail+0x3c6/0x510 [ 52.317646][ T448] should_fail_alloc_page+0x52/0x60 [ 52.322673][ T448] __alloc_pages_nodemask+0x1b3/0xaf0 [ 52.327896][ T448] ? gfp_pfmemalloc_allowed+0x120/0x120 [ 52.333357][ T448] ? __kasan_check_write+0x14/0x20 [ 52.338303][ T448] ? _raw_spin_lock+0xa4/0x1b0 [ 52.342910][ T448] __get_free_pages+0xe/0x30 [ 52.347329][ T448] selinux_genfs_get_sid+0x56/0x2a0 [ 52.352369][ T448] ? lockref_get+0xb4/0x110 [ 52.356708][ T448] inode_doinit_with_dentry+0x86f/0x1050 [ 52.362168][ T448] ? sb_finish_set_opts+0x7a0/0x7a0 [ 52.367338][ T448] ? current_time+0x1af/0x2f0 [ 52.371845][ T448] selinux_d_instantiate+0x27/0x40 [ 52.376790][ T448] security_d_instantiate+0x9f/0x100 [ 52.381910][ T448] d_instantiate+0x55/0x90 [ 52.386162][ T448] __debugfs_create_file+0x2e6/0x4c0 [ 52.391288][ T448] debugfs_create_file+0x4a/0x60 [ 52.396056][ T448] bdi_register_va+0x2a6/0x610 [ 52.400662][ T448] bdi_register+0xd1/0x120 [ 52.404908][ T448] ? vsnprintf+0x1e1/0x1c70 [ 52.409257][ T448] ? __device_add_disk+0x552/0x11a0 [ 52.414303][ T448] ? bdi_register_va+0x610/0x610 [ 52.419061][ T448] ? __kasan_check_read+0x11/0x20 [ 52.423917][ T448] ? blk_alloc_devt+0xd7/0x330 [ 52.428518][ T448] __device_add_disk+0x5de/0x11a0 [ 52.433378][ T448] ? device_add_disk+0x40/0x40 [ 52.437975][ T448] ? vsprintf+0x40/0x40 [ 52.441968][ T448] ? device_initialize+0x1e1/0x420 [ 52.446915][ T448] device_add_disk+0x2a/0x40 [ 52.451361][ T448] loop_add+0x580/0x750 [ 52.455335][ T448] loop_control_ioctl+0x448/0x620 [ 52.460194][ T448] ? loop_remove+0xb0/0xb0 [ 52.464449][ T448] ? _raw_spin_unlock_irq+0x4e/0x70 [ 52.469485][ T448] ? ptrace_notify+0x24c/0x350 [ 52.474082][ T448] ? do_notify_parent+0xa10/0xa10 [ 52.478947][ T448] ? security_file_ioctl+0x84/0xb0 [ 52.483888][ T448] ? loop_remove+0xb0/0xb0 [ 52.488143][ T448] __se_sys_ioctl+0x114/0x190 [ 52.492657][ T448] __x64_sys_ioctl+0x7b/0x90 [ 52.497088][ T448] do_syscall_64+0x34/0x70 [ 52.501355][ T448] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 52.507064][ T448] RIP: 0033:0x7f4305d14d39 [ 52.511316][ T448] 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 [ 52.530760][ T448] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 52.539016][ T448] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 52.546817][ T448] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 52.554630][ T448] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [pid 448] ioctl(3, LOOP_CTL_ADD, 11) = 11 [pid 448] ioctl(3, LOOP_CTL_REMOVE, 11) = 11 [pid 448] exit_group(0) = ? [pid 448] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=448, 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=0x5555572ea650) = 449 ./strace-static-x86_64: Process 449 attached [pid 449] set_robust_list(0x5555572ea660, 24) = 0 [pid 449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 449] setpgid(0, 0) = 0 [pid 449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 449] write(3, "1000", 4) = 4 [pid 449] close(3) = 0 [pid 449] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 449] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 449] write(4, "76", 2) = 2 [ 52.562450][ T448] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 52.570250][ T448] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 52.604092][ T449] FAULT_INJECTION: forcing a failure. [ 52.604092][ T449] name failslab, interval 1, probability 0, space 0, times 0 [ 52.616625][ T449] CPU: 1 PID: 449 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 52.626663][ T449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 52.636571][ T449] Call Trace: [ 52.639689][ T449] dump_stack_lvl+0x1e2/0x24b [ 52.644222][ T449] ? bfq_pos_tree_add_move+0x43b/0x43b [ 52.649493][ T449] ? ____kasan_kmalloc+0xed/0x110 [ 52.654353][ T449] ? kobj_map+0x64/0x670 [ 52.658431][ T449] ? device_add_disk+0x2a/0x40 [ 52.663027][ T449] ? loop_add+0x580/0x750 [ 52.667194][ T449] ? loop_control_ioctl+0x448/0x620 [ 52.672233][ T449] ? __x64_sys_ioctl+0x7b/0x90 [ 52.676838][ T449] dump_stack+0x15/0x17 [ 52.680820][ T449] should_fail+0x3c6/0x510 [ 52.685073][ T449] ? kvasprintf_const+0x13b/0x190 [ 52.689957][ T449] __should_failslab+0xa4/0xe0 [ 52.694543][ T449] should_failslab+0x9/0x20 [ 52.698879][ T449] __kmalloc_track_caller+0x5f/0x320 [ 52.703996][ T449] kstrdup_const+0x55/0x90 [ 52.708247][ T449] kvasprintf_const+0x13b/0x190 [ 52.712935][ T449] kobject_set_name_vargs+0x61/0x120 [ 52.718055][ T449] dev_set_name+0xd1/0x120 [ 52.722310][ T449] ? __kasan_kmalloc+0x9/0x10 [ 52.726845][ T449] ? get_device+0x30/0x30 [ 52.730996][ T449] ? mutex_unlock+0x1c/0x40 [ 52.735337][ T449] ? kobj_map+0x62f/0x670 [ 52.739499][ T449] __device_add_disk+0x703/0x11a0 [ 52.744358][ T449] ? device_add_disk+0x40/0x40 [ 52.748957][ T449] ? vsprintf+0x40/0x40 [ 52.752953][ T449] ? device_initialize+0x1e1/0x420 [ 52.757896][ T449] device_add_disk+0x2a/0x40 [ 52.762324][ T449] loop_add+0x580/0x750 [ 52.766317][ T449] loop_control_ioctl+0x448/0x620 [ 52.771176][ T449] ? loop_remove+0xb0/0xb0 [ 52.775431][ T449] ? _raw_spin_unlock_irq+0x4e/0x70 [ 52.780465][ T449] ? ptrace_notify+0x24c/0x350 [ 52.785089][ T449] ? do_notify_parent+0xa10/0xa10 [ 52.789928][ T449] ? security_file_ioctl+0x84/0xb0 [ 52.794907][ T449] ? loop_remove+0xb0/0xb0 [ 52.799123][ T449] __se_sys_ioctl+0x114/0x190 [ 52.803683][ T449] __x64_sys_ioctl+0x7b/0x90 [ 52.808068][ T449] do_syscall_64+0x34/0x70 [ 52.812322][ T449] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 52.818046][ T449] RIP: 0033:0x7f4305d14d39 [ 52.822319][ T449] 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 [ 52.841753][ T449] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 52.849992][ T449] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 52.857800][ T449] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 52.865612][ T449] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 52.873419][ T449] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 52.881229][ T449] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 52.889594][ T449] kobject_add_internal failed for queue (error: -2 parent: (null)) [ 52.897482][ T449] ------------[ cut here ]------------ [ 52.902693][ T449] WARNING: CPU: 0 PID: 449 at fs/sysfs/file.c:328 sysfs_create_files+0x325/0x470 [ 52.911652][ T449] Modules linked in: [ 52.915499][ T449] CPU: 0 PID: 449 Comm: syz-executor851 Not tainted 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 52.925556][ T449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 52.935448][ T449] RIP: 0010:sysfs_create_files+0x325/0x470 [ 52.941097][ T449] Code: c1 03 38 c1 0f 8c b7 fe ff ff 48 8d 7c 24 70 e8 f1 9d d4 ff e9 a8 fe ff ff e8 07 25 97 ff 31 db e9 ef 00 00 00 e8 fb 24 97 ff <0f> 0b bb ea ff ff ff 4c 8b 74 24 08 eb 17 85 db 0f 84 cf 00 00 00 [ 52.960541][ T449] RSP: 0018:ffffc90000d67b00 EFLAGS: 00010293 [ 52.966402][ T449] RAX: ffffffff81d38428 RBX: ffff8881059d3098 RCX: ffff8881102713c0 [ 52.974250][ T449] RDX: 0000000000000000 RSI: ffffffff869515c0 RDI: ffff8881059d3068 [ 52.982039][ T449] RBP: ffffc90000d67bd0 R08: ffffffff827039e7 R09: ffffed10214cf35a [ 52.989858][ T449] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 52.997661][ T449] R13: ffffffff855f60e0 R14: dffffc0000000000 R15: ffff8881059d3068 [ 53.005458][ T449] FS: 00005555572ea380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 53.014270][ T449] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.020681][ T449] CR2: 00007f4305d47c40 CR3: 000000010ff1e000 CR4: 00000000003506b0 [ 53.028519][ T449] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.036270][ T449] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.044103][ T449] Call Trace: [ 53.047291][ T449] ? show_regs+0x58/0x60 [ 53.051287][ T449] ? __warn+0x160/0x2f0 [ 53.055281][ T449] ? sysfs_create_files+0x325/0x470 [ 53.060345][ T449] ? report_bug+0x3d9/0x5b0 [ 53.064663][ T449] ? sysfs_create_files+0x325/0x470 [ 53.069713][ T449] ? handle_bug+0x41/0x70 [ 53.073854][ T449] ? exc_invalid_op+0x1b/0x50 [ 53.078401][ T449] ? asm_exc_invalid_op+0x12/0x20 [ 53.083231][ T449] ? kobject_get+0xc7/0x120 [ 53.087622][ T449] ? sysfs_create_files+0x458/0x470 [ 53.092620][ T449] ? sysfs_create_files+0x325/0x470 [ 53.097671][ T449] ? sysfs_create_file_ns+0x2a0/0x2a0 [ 53.102846][ T449] ? __kasan_check_write+0x14/0x20 [ 53.107816][ T449] ? kobject_get+0xd1/0x120 [ 53.112133][ T449] __device_add_disk+0x9a7/0x11a0 [ 53.116996][ T449] ? device_add_disk+0x40/0x40 [ 53.121638][ T449] ? vsprintf+0x40/0x40 [ 53.125586][ T449] ? device_initialize+0x1e1/0x420 [ 53.130562][ T449] device_add_disk+0x2a/0x40 [ 53.135046][ T449] loop_add+0x580/0x750 [ 53.139068][ T449] loop_control_ioctl+0x448/0x620 [ 53.143898][ T449] ? loop_remove+0xb0/0xb0 [ 53.148199][ T449] ? _raw_spin_unlock_irq+0x4e/0x70 [ 53.153187][ T449] ? ptrace_notify+0x24c/0x350 [ 53.157816][ T449] ? do_notify_parent+0xa10/0xa10 [ 53.162659][ T449] ? security_file_ioctl+0x84/0xb0 [ 53.167626][ T449] ? loop_remove+0xb0/0xb0 [ 53.171846][ T449] __se_sys_ioctl+0x114/0x190 [ 53.176357][ T449] __x64_sys_ioctl+0x7b/0x90 [ 53.180810][ T449] do_syscall_64+0x34/0x70 [ 53.185037][ T449] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 53.190789][ T449] RIP: 0033:0x7f4305d14d39 [ 53.195024][ T449] 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 [ 53.214491][ T449] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 53.222741][ T449] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 53.230525][ T449] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 53.239911][ T449] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 53.247725][ T449] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 53.255517][ T449] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 53.263354][ T449] ---[ end trace 69abe628f50f1ac0 ]--- [ 53.268633][ T449] ------------[ cut here ]------------ [ 53.273910][ T449] kernfs: can not remove 'events', no directory [ 53.280096][ T449] WARNING: CPU: 0 PID: 449 at fs/kernfs/dir.c:1573 kernfs_remove_by_name_ns+0x10c/0x160 [ 53.289543][ T449] Modules linked in: [ 53.293287][ T449] CPU: 0 PID: 449 Comm: syz-executor851 Tainted: G W 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 53.305010][ T449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 53.314901][ T449] RIP: 0010:kernfs_remove_by_name_ns+0x10c/0x160 [ 53.321077][ T449] Code: ff 03 48 89 df e8 d4 ee ff ff 48 89 df e8 7c ac ff ff 31 db eb 27 e8 03 85 97 ff 48 c7 c7 c0 bc 4a 85 4c 89 e6 e8 54 14 6b ff <0f> 0b bb fe ff ff ff eb 12 e8 e6 84 97 ff bb fe ff ff ff 4c 89 f7 [ 53.340504][ T449] RSP: 0018:ffffc90000d67ac8 EFLAGS: 00010246 [ 53.346385][ T449] RAX: 468edd1d08785700 RBX: ffff8881059d3098 RCX: ffff8881102713c0 [ 53.354223][ T449] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 53.362020][ T449] RBP: ffffc90000d67af0 R08: ffffffff81521d98 R09: fffff520001ace6d [ 53.369843][ T449] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff855f61a0 [ 53.377730][ T449] R13: 0000000000000000 R14: ffffffff855f60e0 R15: 0000000000000000 [ 53.385538][ T449] FS: 00005555572ea380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 53.394716][ T449] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.401177][ T449] CR2: 00007f4305d47c40 CR3: 000000010ff1e000 CR4: 00000000003506b0 [ 53.408909][ T449] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.416687][ T449] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.424525][ T449] Call Trace: [ 53.427639][ T449] ? show_regs+0x58/0x60 [ 53.431710][ T449] ? __warn+0x160/0x2f0 [ 53.435708][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 53.441280][ T449] ? report_bug+0x3d9/0x5b0 [ 53.445608][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 53.451261][ T449] ? handle_bug+0x41/0x70 [ 53.455409][ T449] ? exc_invalid_op+0x1b/0x50 [ 53.459945][ T449] ? asm_exc_invalid_op+0x12/0x20 [ 53.464775][ T449] ? wake_up_klogd+0xb8/0xf0 [ 53.469316][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 53.474855][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 53.480433][ T449] sysfs_create_files+0x3de/0x470 [ 53.485264][ T449] ? sysfs_create_file_ns+0x2a0/0x2a0 [ 53.490501][ T449] ? __kasan_check_write+0x14/0x20 [ 53.495416][ T449] ? kobject_get+0xd1/0x120 [ 53.499790][ T449] __device_add_disk+0x9a7/0x11a0 [ 53.504614][ T449] ? device_add_disk+0x40/0x40 [ 53.509240][ T449] ? vsprintf+0x40/0x40 [ 53.513217][ T449] ? device_initialize+0x1e1/0x420 [ 53.518183][ T449] device_add_disk+0x2a/0x40 [ 53.522588][ T449] loop_add+0x580/0x750 [ 53.526575][ T449] loop_control_ioctl+0x448/0x620 [ 53.531464][ T449] ? loop_remove+0xb0/0xb0 [ 53.535687][ T449] ? _raw_spin_unlock_irq+0x4e/0x70 [ 53.540756][ T449] ? ptrace_notify+0x24c/0x350 [ 53.545340][ T449] ? do_notify_parent+0xa10/0xa10 [ 53.550233][ T449] ? security_file_ioctl+0x84/0xb0 [ 53.555135][ T449] ? loop_remove+0xb0/0xb0 [ 53.559413][ T449] __se_sys_ioctl+0x114/0x190 [ 53.563897][ T449] __x64_sys_ioctl+0x7b/0x90 [ 53.568351][ T449] do_syscall_64+0x34/0x70 [ 53.572593][ T449] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 53.578335][ T449] RIP: 0033:0x7f4305d14d39 [ 53.582559][ T449] 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 [ 53.602044][ T449] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 53.610278][ T449] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [pid 449] ioctl(3, LOOP_CTL_ADD, 11) = 11 [ 53.618084][ T449] RDX: 000000000000000b RSI: 0000000000004c80 RDI: 0000000000000003 [ 53.625863][ T449] RBP: 0000000000000002 R08: 00007ffc2ca91846 R09: 00000000000000a0 [ 53.633700][ T449] R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 53.641505][ T449] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 53.649321][ T449] ---[ end trace 69abe628f50f1ac1 ]--- [ 53.654590][ T449] loop11: failed to create sysfs files for events [ 53.661094][ T449] ------------[ cut here ]------------ [ 53.666568][ T449] kernfs: can not remove 'events', no directory [ 53.672906][ T449] WARNING: CPU: 1 PID: 449 at fs/kernfs/dir.c:1573 kernfs_remove_by_name_ns+0x10c/0x160 [ 53.682751][ T449] Modules linked in: [ 53.686515][ T449] CPU: 1 PID: 449 Comm: syz-executor851 Tainted: G W 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 53.698488][ T449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 53.708347][ T449] RIP: 0010:kernfs_remove_by_name_ns+0x10c/0x160 [ 53.714482][ T449] Code: ff 03 48 89 df e8 d4 ee ff ff 48 89 df e8 7c ac ff ff 31 db eb 27 e8 03 85 97 ff 48 c7 c7 c0 bc 4a 85 4c 89 e6 e8 54 14 6b ff <0f> 0b bb fe ff ff ff eb 12 e8 e6 84 97 ff bb fe ff ff ff 4c 89 f7 [ 53.734076][ T449] RSP: 0018:ffffc90000d67c08 EFLAGS: 00010246 [ 53.739954][ T449] RAX: 468edd1d08785700 RBX: ffffffff855f60e0 RCX: ffff8881102713c0 [ 53.747748][ T449] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 53.755540][ T449] RBP: ffffc90000d67c30 R08: ffffffff81521d98 R09: ffffed103ee2a5f8 [ 53.763469][ T449] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff855f61a0 [ 53.771689][ T449] R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000 [ 53.779512][ T449] FS: 00005555572ea380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 53.788286][ T449] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.794671][ T449] CR2: 00007f4305d47c40 CR3: 000000010ff1e000 CR4: 00000000003506b0 [ 53.802518][ T449] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.810314][ T449] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.818131][ T449] Call Trace: [ 53.821250][ T449] ? show_regs+0x58/0x60 [ 53.825316][ T449] ? __warn+0x160/0x2f0 [ 53.829335][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 53.834866][ T449] ? report_bug+0x3d9/0x5b0 [ 53.839322][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 53.844856][ T449] ? handle_bug+0x41/0x70 [ 53.849052][ T449] ? exc_invalid_op+0x1b/0x50 [ 53.853535][ T449] ? asm_exc_invalid_op+0x12/0x20 [ 53.858415][ T449] ? wake_up_klogd+0xb8/0xf0 [ 53.862815][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 53.868393][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 53.873932][ T449] sysfs_remove_files+0xa5/0x100 [ 53.878724][ T449] del_gendisk+0x248/0xa90 [ 53.882961][ T449] ? device_add_disk_no_queue_reg+0x30/0x30 [ 53.888736][ T449] ? radix_tree_delete_item+0x24d/0x350 [ 53.894063][ T449] loop_remove+0x46/0xb0 [ 53.898168][ T449] loop_control_ioctl+0x564/0x620 [ 53.903010][ T449] ? loop_remove+0xb0/0xb0 [ 53.907289][ T449] ? _raw_spin_unlock_irq+0x4e/0x70 [ 53.912304][ T449] ? ptrace_notify+0x24c/0x350 [ 53.916907][ T449] ? do_notify_parent+0xa10/0xa10 [ 53.921845][ T449] ? security_file_ioctl+0x84/0xb0 [ 53.926820][ T449] ? loop_remove+0xb0/0xb0 [ 53.931093][ T449] __se_sys_ioctl+0x114/0x190 [ 53.935589][ T449] __x64_sys_ioctl+0x7b/0x90 [ 53.940048][ T449] do_syscall_64+0x34/0x70 [ 53.944266][ T449] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 53.950022][ T449] RIP: 0033:0x7f4305d14d39 [ 53.954242][ T449] 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 [ 53.973718][ T449] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 53.981942][ T449] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 53.989771][ T449] RDX: 000000000000000b RSI: 0000000000004c81 RDI: 0000000000000003 [ 53.997564][ T449] RBP: 0000000000000002 R08: 00000000000000a0 R09: 00000000000000a0 [ 54.005363][ T449] R10: 00007ffc2ca91846 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 54.013198][ T449] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 54.021001][ T449] ---[ end trace 69abe628f50f1ac2 ]--- [ 54.026279][ T449] ------------[ cut here ]------------ [ 54.031602][ T449] kernfs: can not remove 'events_async', no directory [ 54.038576][ T449] WARNING: CPU: 0 PID: 449 at fs/kernfs/dir.c:1573 kernfs_remove_by_name_ns+0x10c/0x160 [ 54.048176][ T449] Modules linked in: [ 54.051904][ T449] CPU: 0 PID: 449 Comm: syz-executor851 Tainted: G W 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 54.063379][ T449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 54.073259][ T449] RIP: 0010:kernfs_remove_by_name_ns+0x10c/0x160 [ 54.079600][ T449] Code: ff 03 48 89 df e8 d4 ee ff ff 48 89 df e8 7c ac ff ff 31 db eb 27 e8 03 85 97 ff 48 c7 c7 c0 bc 4a 85 4c 89 e6 e8 54 14 6b ff <0f> 0b bb fe ff ff ff eb 12 e8 e6 84 97 ff bb fe ff ff ff 4c 89 f7 [ 54.099120][ T449] RSP: 0018:ffffc90000d67c08 EFLAGS: 00010246 [ 54.105003][ T449] RAX: 468edd1d08785700 RBX: ffffffff855f6120 RCX: ffff8881102713c0 [ 54.112866][ T449] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 54.120638][ T449] RBP: ffffc90000d67c30 R08: ffffffff81521d98 R09: ffffed103ee0a5f8 [ 54.128469][ T449] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff855f6240 [ 54.136257][ T449] R13: 0000000000000000 R14: 0000000000000002 R15: 0000000000000000 [ 54.144088][ T449] FS: 00005555572ea380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 54.152845][ T449] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.159282][ T449] CR2: 00007f4305d47c40 CR3: 000000010ff1e000 CR4: 00000000003506b0 [ 54.167078][ T449] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.174914][ T449] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.182695][ T449] Call Trace: [ 54.185813][ T449] ? show_regs+0x58/0x60 [ 54.189920][ T449] ? __warn+0x160/0x2f0 [ 54.193901][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 54.199555][ T449] ? report_bug+0x3d9/0x5b0 [ 54.203865][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 54.209443][ T449] ? handle_bug+0x41/0x70 [ 54.213583][ T449] ? exc_invalid_op+0x1b/0x50 [ 54.218128][ T449] ? asm_exc_invalid_op+0x12/0x20 [ 54.222961][ T449] ? wake_up_klogd+0xb8/0xf0 [ 54.227411][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 54.232948][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 54.238524][ T449] sysfs_remove_files+0xa5/0x100 [ 54.243271][ T449] del_gendisk+0x248/0xa90 [ 54.247549][ T449] ? device_add_disk_no_queue_reg+0x30/0x30 [ 54.253253][ T449] ? radix_tree_delete_item+0x24d/0x350 [ 54.258655][ T449] loop_remove+0x46/0xb0 [ 54.262711][ T449] loop_control_ioctl+0x564/0x620 [ 54.267600][ T449] ? loop_remove+0xb0/0xb0 [ 54.271824][ T449] ? _raw_spin_unlock_irq+0x4e/0x70 [ 54.276857][ T449] ? ptrace_notify+0x24c/0x350 [ 54.281500][ T449] ? do_notify_parent+0xa10/0xa10 [ 54.286324][ T449] ? security_file_ioctl+0x84/0xb0 [ 54.291308][ T449] ? loop_remove+0xb0/0xb0 [ 54.295524][ T449] __se_sys_ioctl+0x114/0x190 [ 54.300061][ T449] __x64_sys_ioctl+0x7b/0x90 [ 54.304463][ T449] do_syscall_64+0x34/0x70 [ 54.308743][ T449] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 54.314440][ T449] RIP: 0033:0x7f4305d14d39 [ 54.318725][ T449] 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 [ 54.338149][ T449] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 54.346467][ T449] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 54.354303][ T449] RDX: 000000000000000b RSI: 0000000000004c81 RDI: 0000000000000003 [ 54.362116][ T449] RBP: 0000000000000002 R08: 00000000000000a0 R09: 00000000000000a0 [ 54.369928][ T449] R10: 00007ffc2ca91846 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 54.377724][ T449] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 54.385542][ T449] ---[ end trace 69abe628f50f1ac3 ]--- [ 54.390847][ T449] ------------[ cut here ]------------ [ 54.396114][ T449] kernfs: can not remove 'events_poll_msecs', no directory [ 54.403324][ T449] WARNING: CPU: 0 PID: 449 at fs/kernfs/dir.c:1573 kernfs_remove_by_name_ns+0x10c/0x160 [ 54.412783][ T449] Modules linked in: [ 54.416508][ T449] CPU: 0 PID: 449 Comm: syz-executor851 Tainted: G W 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 54.428056][ T449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 54.437907][ T449] RIP: 0010:kernfs_remove_by_name_ns+0x10c/0x160 [ 54.444024][ T449] Code: ff 03 48 89 df e8 d4 ee ff ff 48 89 df e8 7c ac ff ff 31 db eb 27 e8 03 85 97 ff 48 c7 c7 c0 bc 4a 85 4c 89 e6 e8 54 14 6b ff <0f> 0b bb fe ff ff ff eb 12 e8 e6 84 97 ff bb fe ff ff ff 4c 89 f7 [ 54.463511][ T449] RSP: 0018:ffffc90000d67c08 EFLAGS: 00010246 [ 54.469387][ T449] RAX: 468edd1d08785700 RBX: ffffffff855f6160 RCX: ffff8881102713c0 [ 54.477174][ T449] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 54.485012][ T449] RBP: ffffc90000d67c30 R08: ffffffff81521d98 R09: fffff520001ace95 [ 54.492811][ T449] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff855f6260 [ 54.500639][ T449] R13: 0000000000000000 R14: 0000000000000003 R15: 0000000000000000 [ 54.508436][ T449] FS: 00005555572ea380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 54.517187][ T449] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.523647][ T449] CR2: 00007f4305d47c40 CR3: 000000010ff1e000 CR4: 00000000003506b0 [ 54.531437][ T449] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.539256][ T449] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.547039][ T449] Call Trace: [ 54.550200][ T449] ? show_regs+0x58/0x60 [ 54.554253][ T449] ? __warn+0x160/0x2f0 [ 54.558265][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 54.563801][ T449] ? report_bug+0x3d9/0x5b0 [ 54.568190][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 54.573696][ T449] ? handle_bug+0x41/0x70 [ 54.577901][ T449] ? exc_invalid_op+0x1b/0x50 [ 54.582378][ T449] ? asm_exc_invalid_op+0x12/0x20 [ 54.587231][ T449] ? wake_up_klogd+0xb8/0xf0 [ 54.591686][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 54.597215][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 54.602796][ T449] sysfs_remove_files+0xa5/0x100 [ 54.607562][ T449] del_gendisk+0x248/0xa90 [ 54.611803][ T449] ? device_add_disk_no_queue_reg+0x30/0x30 [ 54.617590][ T449] ? radix_tree_delete_item+0x24d/0x350 [ 54.622908][ T449] loop_remove+0x46/0xb0 [ 54.626983][ T449] loop_control_ioctl+0x564/0x620 [ 54.631877][ T449] ? loop_remove+0xb0/0xb0 [ 54.636105][ T449] ? _raw_spin_unlock_irq+0x4e/0x70 [ 54.641162][ T449] ? ptrace_notify+0x24c/0x350 [ 54.645734][ T449] ? do_notify_parent+0xa10/0xa10 [ 54.650637][ T449] ? security_file_ioctl+0x84/0xb0 [ 54.655549][ T449] ? loop_remove+0xb0/0xb0 [ 54.659822][ T449] __se_sys_ioctl+0x114/0x190 [ 54.664306][ T449] __x64_sys_ioctl+0x7b/0x90 [ 54.668777][ T449] do_syscall_64+0x34/0x70 [ 54.673112][ T449] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 54.678861][ T449] RIP: 0033:0x7f4305d14d39 [ 54.683076][ T449] 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 [ 54.702550][ T449] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 54.710773][ T449] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 54.718597][ T449] RDX: 000000000000000b RSI: 0000000000004c81 RDI: 0000000000000003 [ 54.726385][ T449] RBP: 0000000000000002 R08: 00000000000000a0 R09: 00000000000000a0 [ 54.734307][ T449] R10: 00007ffc2ca91846 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 54.742120][ T449] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 54.749926][ T449] ---[ end trace 69abe628f50f1ac4 ]--- [ 54.755239][ T449] ------------[ cut here ]------------ [ 54.760517][ T449] kernfs: can not remove 'bdi', no directory [ 54.766346][ T449] WARNING: CPU: 0 PID: 449 at fs/kernfs/dir.c:1573 kernfs_remove_by_name_ns+0x10c/0x160 [ 54.775880][ T449] Modules linked in: [ 54.779625][ T449] CPU: 0 PID: 449 Comm: syz-executor851 Tainted: G W 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 54.791063][ T449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 54.800959][ T449] RIP: 0010:kernfs_remove_by_name_ns+0x10c/0x160 [ 54.807095][ T449] Code: ff 03 48 89 df e8 d4 ee ff ff 48 89 df e8 7c ac ff ff 31 db eb 27 e8 03 85 97 ff 48 c7 c7 c0 bc 4a 85 4c 89 e6 e8 54 14 6b ff <0f> 0b bb fe ff ff ff eb 12 e8 e6 84 97 ff bb fe ff ff ff 4c 89 f7 [ 54.826573][ T449] RSP: 0018:ffffc90000d67c28 EFLAGS: 00010246 [ 54.832461][ T449] RAX: 468edd1d08785700 RBX: ffff8881059d3098 RCX: ffff8881102713c0 [ 54.840288][ T449] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 54.848204][ T449] RBP: ffffc90000d67c50 R08: ffffffff81521d98 R09: ffffed103ee0a5f8 [ 54.855964][ T449] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff855f5ac0 [ 54.863801][ T449] R13: 0000000000000000 R14: ffffffff855f5ac0 R15: 0000000000000000 [ 54.871626][ T449] FS: 00005555572ea380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 54.880385][ T449] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.886773][ T449] CR2: 00007f4305d47c40 CR3: 000000010ff1e000 CR4: 00000000003506b0 [ 54.894708][ T449] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.902495][ T449] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.910317][ T449] Call Trace: [ 54.913431][ T449] ? show_regs+0x58/0x60 [ 54.917522][ T449] ? __warn+0x160/0x2f0 [ 54.921498][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 54.927054][ T449] ? report_bug+0x3d9/0x5b0 [ 54.931419][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 54.936946][ T449] ? handle_bug+0x41/0x70 [ 54.941173][ T449] ? exc_invalid_op+0x1b/0x50 [ 54.945644][ T449] ? asm_exc_invalid_op+0x12/0x20 [ 54.950508][ T449] ? wake_up_klogd+0xb8/0xf0 [ 54.954917][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 54.960487][ T449] ? kernfs_remove_by_name_ns+0x10c/0x160 [ 54.966023][ T449] sysfs_remove_link+0x50/0x60 [ 54.970653][ T449] del_gendisk+0x477/0xa90 [ 54.974876][ T449] ? device_add_disk_no_queue_reg+0x30/0x30 [ 54.980628][ T449] ? radix_tree_delete_item+0x24d/0x350 [ 54.985992][ T449] loop_remove+0x46/0xb0 [ 54.990083][ T449] loop_control_ioctl+0x564/0x620 [ 54.994935][ T449] ? loop_remove+0xb0/0xb0 [ 54.999296][ T449] ? _raw_spin_unlock_irq+0x4e/0x70 [ 55.004306][ T449] ? ptrace_notify+0x24c/0x350 [ 55.008963][ T449] ? do_notify_parent+0xa10/0xa10 [ 55.013757][ T449] ? security_file_ioctl+0x84/0xb0 [ 55.018726][ T449] ? loop_remove+0xb0/0xb0 [ 55.022955][ T449] __se_sys_ioctl+0x114/0x190 [ 55.027489][ T449] __x64_sys_ioctl+0x7b/0x90 [ 55.031896][ T449] do_syscall_64+0x34/0x70 [ 55.036146][ T449] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 55.041899][ T449] RIP: 0033:0x7f4305d14d39 [ 55.046140][ T449] 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 [ 55.065612][ T449] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 55.073825][ T449] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 55.081650][ T449] RDX: 000000000000000b RSI: 0000000000004c81 RDI: 0000000000000003 [ 55.089448][ T449] RBP: 0000000000000002 R08: 00000000000000a0 R09: 00000000000000a0 [ 55.097250][ T449] R10: 00007ffc2ca91846 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 55.105059][ T449] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 55.112895][ T449] ---[ end trace 69abe628f50f1ac5 ]--- [ 55.119012][ T449] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 55.130529][ T449] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 55.138776][ T449] CPU: 0 PID: 449 Comm: syz-executor851 Tainted: G W 5.10.209-syzkaller-00435-gdd976ecce2ce #0 [ 55.150239][ T449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 55.160131][ T449] RIP: 0010:strlen+0x2c/0x70 [ 55.164552][ T449] 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 [ 55.183993][ T449] RSP: 0018:ffffc90000d67b98 EFLAGS: 00010246 [ 55.189898][ T449] RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000001 [ 55.197710][ T449] RDX: ffff8881102713c0 RSI: 0000000000000000 RDI: 0000000000000000 [ 55.205616][ T449] RBP: ffffc90000d67bb8 R08: ffffffff81d2f3ab R09: ffffed102000b22f [ 55.213425][ T449] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffffffffff [ 55.221225][ T449] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 55.229128][ T449] FS: 00005555572ea380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 55.237889][ T449] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.244310][ T449] CR2: 00007f4305d47c40 CR3: 000000010ff1e000 CR4: 00000000003506b0 [ 55.252123][ T449] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.259932][ T449] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.267749][ T449] Call Trace: [ 55.270879][ T449] ? __die_body+0x62/0xb0 [ 55.275041][ T449] ? die_addr+0x9f/0xd0 [ 55.279034][ T449] ? exc_general_protection+0x3ff/0x490 [ 55.284418][ T449] ? asm_exc_general_protection+0x1e/0x30 [ 55.289970][ T449] ? kernfs_find_ns+0x7b/0x4a0 [ 55.294569][ T449] ? strlen+0x2c/0x70 [ 55.298395][ T449] ? down_read_killable+0x220/0x220 [ 55.303426][ T449] kernfs_find_ns+0x95/0x4a0 [ 55.307853][ T449] kernfs_remove_by_name_ns+0x87/0x160 [ 55.313141][ T449] sysfs_remove_link+0x50/0x60 [ 55.317740][ T449] del_gendisk+0x87b/0xa90 [ 55.322001][ T449] ? device_add_disk_no_queue_reg+0x30/0x30 [ 55.327725][ T449] ? radix_tree_delete_item+0x24d/0x350 [ 55.333111][ T449] loop_remove+0x46/0xb0 [ 55.337185][ T449] loop_control_ioctl+0x564/0x620 [ 55.342049][ T449] ? loop_remove+0xb0/0xb0 [ 55.346305][ T449] ? _raw_spin_unlock_irq+0x4e/0x70 [ 55.351337][ T449] ? ptrace_notify+0x24c/0x350 [ 55.355931][ T449] ? do_notify_parent+0xa10/0xa10 [ 55.360800][ T449] ? security_file_ioctl+0x84/0xb0 [ 55.365737][ T449] ? loop_remove+0xb0/0xb0 [ 55.369994][ T449] __se_sys_ioctl+0x114/0x190 [ 55.374506][ T449] __x64_sys_ioctl+0x7b/0x90 [ 55.378945][ T449] do_syscall_64+0x34/0x70 [ 55.383185][ T449] entry_SYSCALL_64_after_hwframe+0x61/0xc6 [ 55.388912][ T449] RIP: 0033:0x7f4305d14d39 [ 55.393171][ T449] 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 [ 55.412607][ T449] RSP: 002b:00007ffc2ca91aa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 55.420854][ T449] RAX: ffffffffffffffda RBX: 00007ffc2ca91ac0 RCX: 00007f4305d14d39 [ 55.428661][ T449] RDX: 000000000000000b RSI: 0000000000004c81 RDI: 0000000000000003 [ 55.436473][ T449] RBP: 0000000000000002 R08: 00000000000000a0 R09: 00000000000000a0 [ 55.444296][ T449] R10: 00007ffc2ca91846 R11: 0000000000000246 R12: 00007ffc2ca91abc [ 55.452127][ T449] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 55.459904][ T449] Modules linked in: [ 55.463715][ T449] ---[ end trace 69abe628f50f1ac6 ]--- [ 55.468973][ T449] RIP: 0010:strlen+0x2c/0x70 [ 55.473366][ T449] 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 [ 55.492835][ T449] RSP: 0018:ffffc90000d67b98 EFLAGS: 00010246 [ 55.498742][ T449] RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000001 [ 55.506519][ T449] RDX: ffff8881102713c0 RSI: 0000000000000000 RDI: 0000000000000000 [ 55.514361][ T449] RBP: ffffc90000d67bb8 R08: ffffffff81d2f3ab R09: ffffed102000b22f [ 55.522256][ T449] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffffffffffff [ 55.530091][ T449] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 55.537994][ T449] FS: 00005555572ea380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 55.546726][ T449] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.553182][ T449] CR2: 00007f4305d47c40 CR3: 000000010ff1e000 CR4: 00000000003506b0 [ 55.560973][ T449] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.568813][ T449] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.576577][ T449] Kernel panic - not syncing: Fatal exception [ 55.582629][ T449] Kernel Offset: disabled [ 55.586755][ T449] Rebooting in 86400 seconds..