./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2176910162 <...> DUID 00:04:1b:46:fd:e7:51:70:1d:5b:72:6d:9c:0c:92:c0:39:1c forked to background, child pid 192 Starting sshd: OK syzkaller syzkaller login: [ 12.127028][ T22] kauditd_printk_skb: 60 callbacks suppressed [ 12.127036][ T22] audit: type=1400 audit(1657420938.429:71): avc: denied { transition } for pid=264 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.134447][ T22] audit: type=1400 audit(1657420938.429:72): avc: denied { write } for pid=264 comm="sh" path="pipe:[10674]" dev="pipefs" ino=10674 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 Warning: Permanently added '10.128.0.208' (ECDSA) to the list of known hosts. execve("./syz-executor2176910162", ["./syz-executor2176910162"], 0x7ffc06a4b790 /* 10 vars */) = 0 brk(NULL) = 0x555555c67000 brk(0x555555c67c40) = 0x555555c67c40 arch_prctl(ARCH_SET_FS, 0x555555c67300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2176910162", 4096) = 28 brk(0x555555c88c40) = 0x555555c88c40 brk(0x555555c89000) = 0x555555c89000 mprotect(0x7f5aa0044000, 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=0x555555c675d0) = 305 ./strace-static-x86_64: Process 305 attached [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, "78", 2) = 2 [pid 305] ioctl(3, LOOP_CTL_ADD, 12) = -1 EEXIST (File exists) [pid 305] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 305] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 305] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [pid 305] exit_group(0) = ? [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=0x555555c675d0) = 308 ./strace-static-x86_64: Process 308 attached [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, "78", 2) = 2 [ 19.086535][ T22] audit: type=1400 audit(1657420945.389:73): avc: denied { execmem } for pid=304 comm="syz-executor217" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 19.093046][ T22] audit: type=1400 audit(1657420945.389:74): avc: denied { read } for pid=305 comm="syz-executor217" name="loop-control" dev="devtmpfs" ino=9374 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [ 19.097055][ T22] audit: type=1400 audit(1657420945.389:75): avc: denied { open } for pid=305 comm="syz-executor217" path="/dev/loop-control" dev="devtmpfs" ino=9374 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [ 19.102981][ T22] audit: type=1400 audit(1657420945.399:76): avc: denied { ioctl } for pid=305 comm="syz-executor217" path="/dev/loop-control" dev="devtmpfs" ino=9374 ioctlcmd=0x4c80 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:loop_control_device_t tclass=chr_file permissive=1 [ 19.143687][ T308] FAULT_INJECTION: forcing a failure. [ 19.143687][ T308] name fail_page_alloc, interval 1, probability 0, space 0, times 1 [ 19.156943][ T308] CPU: 0 PID: 308 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 19.167072][ T308] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 19.177093][ T308] Call Trace: [ 19.180370][ T308] dump_stack+0x18e/0x1d5 [ 19.184673][ T308] should_fail+0x604/0x770 [ 19.189062][ T308] __alloc_pages_nodemask+0x12a/0x6f0 [ 19.194409][ T308] __get_free_pages+0xa/0x30 [ 19.198972][ T308] selinux_genfs_get_sid+0x55/0x250 [ 19.204145][ T308] inode_doinit_with_dentry+0x8ca/0xf30 [ 19.209660][ T308] security_d_instantiate+0xa5/0x100 [ 19.214915][ T308] d_instantiate+0x51/0x90 [ 19.219319][ T308] __debugfs_create_file+0x256/0x400 [ 19.224575][ T308] bdi_register_va+0x274/0x5e0 [ 19.229308][ T308] bdi_register+0x80/0xa0 [ 19.233605][ T308] ? __device_add_disk+0x50a/0x1210 [ 19.238780][ T308] bdi_register_owner+0x56/0xf0 [ 19.243717][ T308] __device_add_disk+0x583/0x1210 [ 19.248711][ T308] loop_add+0x554/0x710 [ 19.252837][ T308] loop_control_ioctl+0x465/0x600 [ 19.257826][ T308] ? loop_remove+0xa0/0xa0 [ 19.262211][ T308] do_vfs_ioctl+0x6d1/0x15b0 [ 19.266776][ T308] __x64_sys_ioctl+0xd4/0x110 [ 19.271421][ T308] do_syscall_64+0xcb/0x1c0 [ 19.275910][ T308] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.281770][ T308] RIP: 0033:0x7f5a9ffd70c9 [ 19.286161][ T308] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 19.305741][ T308] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 19.314121][ T308] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 19.322078][ T308] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 19.330025][ T308] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 308] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 308] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 308] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 19.337968][ T308] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 19.345910][ T308] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 308] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 309 attached , child_tidptr=0x555555c675d0) = 309 [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, "78", 2) = 2 [ 19.425003][ T309] FAULT_INJECTION: forcing a failure. [ 19.425003][ T309] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 19.438248][ T309] CPU: 0 PID: 309 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 19.448370][ T309] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 19.458541][ T309] Call Trace: [ 19.461807][ T309] dump_stack+0x18e/0x1d5 [ 19.466108][ T309] should_fail+0x604/0x770 [ 19.470627][ T309] __alloc_pages_nodemask+0x12a/0x6f0 [ 19.475979][ T309] __get_free_pages+0xa/0x30 [ 19.480549][ T309] selinux_genfs_get_sid+0x55/0x250 [ 19.485745][ T309] inode_doinit_with_dentry+0x8ca/0xf30 [ 19.491269][ T309] security_d_instantiate+0xa5/0x100 [ 19.496535][ T309] d_instantiate+0x51/0x90 [ 19.500934][ T309] __debugfs_create_file+0x256/0x400 [ 19.506205][ T309] bdi_register_va+0x274/0x5e0 [ 19.510946][ T309] bdi_register+0x80/0xa0 [ 19.515247][ T309] ? __device_add_disk+0x50a/0x1210 [ 19.520418][ T309] bdi_register_owner+0x56/0xf0 [ 19.525246][ T309] __device_add_disk+0x583/0x1210 [ 19.530246][ T309] loop_add+0x554/0x710 [ 19.534552][ T309] loop_control_ioctl+0x465/0x600 [ 19.539554][ T309] ? loop_remove+0xa0/0xa0 [ 19.544306][ T309] do_vfs_ioctl+0x6d1/0x15b0 [ 19.548867][ T309] __x64_sys_ioctl+0xd4/0x110 [ 19.553522][ T309] do_syscall_64+0xcb/0x1c0 [ 19.558003][ T309] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.563899][ T309] RIP: 0033:0x7f5a9ffd70c9 [ 19.568286][ T309] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 19.587894][ T309] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 19.596454][ T309] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 19.604395][ T309] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 19.612357][ T309] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 309] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 309] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 309] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 309] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 310 ./strace-static-x86_64: Process 310 attached [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, "78", 2) = 2 [ 19.620320][ T309] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 19.628293][ T309] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 19.676715][ T310] FAULT_INJECTION: forcing a failure. [ 19.676715][ T310] name failslab, interval 1, probability 0, space 0, times 1 [ 19.689310][ T310] CPU: 0 PID: 310 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 19.699440][ T310] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 19.709479][ T310] Call Trace: [ 19.712763][ T310] dump_stack+0x18e/0x1d5 [ 19.717064][ T310] should_fail+0x604/0x770 [ 19.721449][ T310] ? security_inode_alloc+0x24/0x130 [ 19.726708][ T310] should_failslab+0x5/0x20 [ 19.731202][ T310] kmem_cache_alloc+0x24/0x210 [ 19.735942][ T310] security_inode_alloc+0x24/0x130 [ 19.741031][ T310] inode_init_always+0x387/0x810 [ 19.745937][ T310] new_inode_pseudo+0x8f/0x210 [ 19.750665][ T310] new_inode+0x25/0x1d0 [ 19.754789][ T310] ? start_creating+0x183/0x270 [ 19.759607][ T310] __debugfs_create_file+0xb6/0x400 [ 19.764780][ T310] ? debugfs_create_dir+0x2e6/0x380 [ 19.769949][ T310] bdi_register_va+0x274/0x5e0 [ 19.774679][ T310] bdi_register+0x80/0xa0 [ 19.778979][ T310] ? __device_add_disk+0x50a/0x1210 [ 19.784146][ T310] bdi_register_owner+0x56/0xf0 [ 19.788965][ T310] __device_add_disk+0x583/0x1210 [ 19.793961][ T310] loop_add+0x554/0x710 [ 19.798172][ T310] loop_control_ioctl+0x465/0x600 [ 19.803265][ T310] ? loop_remove+0xa0/0xa0 [ 19.807660][ T310] do_vfs_ioctl+0x6d1/0x15b0 [ 19.812228][ T310] __x64_sys_ioctl+0xd4/0x110 [ 19.816878][ T310] do_syscall_64+0xcb/0x1c0 [ 19.821365][ T310] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 19.827238][ T310] RIP: 0033:0x7f5a9ffd70c9 [ 19.831625][ T310] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 19.851216][ T310] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 19.859598][ T310] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 19.867539][ T310] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [pid 310] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 310] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 310] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 310] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy) [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=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 311 ./strace-static-x86_64: Process 311 attached [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, "78", 2) = 2 [pid 311] ioctl(3, LOOP_CTL_ADD, 12) = -1 EEXIST (File exists) [pid 311] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 311] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 311] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [pid 311] exit_group(0) = ? [ 19.875502][ T310] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [ 19.883446][ T310] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 19.891393][ T310] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 19.899626][ T310] debugfs: out of free dentries, can not create file 'stats' [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=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 312 ./strace-static-x86_64: Process 312 attached [pid 312] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 312] setpgid(0, 0) = 0 [pid 312] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 312] write(3, "1000", 4) = 4 [pid 312] close(3) = 0 [pid 312] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 312] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 312] write(4, "78", 2) = 2 [ 19.962328][ T312] FAULT_INJECTION: forcing a failure. [ 19.962328][ T312] name failslab, interval 1, probability 0, space 0, times 0 [ 19.975016][ T312] CPU: 1 PID: 312 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 19.985146][ T312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 19.995169][ T312] Call Trace: [ 19.998607][ T312] dump_stack+0x18e/0x1d5 [ 20.002914][ T312] should_fail+0x604/0x770 [ 20.007305][ T312] ? new_inode_pseudo+0x78/0x210 [ 20.012235][ T312] should_failslab+0x5/0x20 [ 20.016708][ T312] kmem_cache_alloc+0x24/0x210 [ 20.021439][ T312] new_inode_pseudo+0x78/0x210 [ 20.026168][ T312] new_inode+0x25/0x1d0 [ 20.030292][ T312] ? start_creating+0x183/0x270 [ 20.035111][ T312] __debugfs_create_file+0xb6/0x400 [ 20.040275][ T312] ? debugfs_create_dir+0x2e6/0x380 [ 20.045440][ T312] bdi_register_va+0x274/0x5e0 [ 20.050172][ T312] bdi_register+0x80/0xa0 [ 20.054468][ T312] ? __device_add_disk+0x50a/0x1210 [ 20.059643][ T312] bdi_register_owner+0x56/0xf0 [ 20.064471][ T312] __device_add_disk+0x583/0x1210 [ 20.069463][ T312] loop_add+0x554/0x710 [ 20.073585][ T312] loop_control_ioctl+0x465/0x600 [ 20.078595][ T312] ? loop_remove+0xa0/0xa0 [ 20.082975][ T312] do_vfs_ioctl+0x6d1/0x15b0 [ 20.087536][ T312] __x64_sys_ioctl+0xd4/0x110 [ 20.092183][ T312] do_syscall_64+0xcb/0x1c0 [ 20.096659][ T312] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.102610][ T312] RIP: 0033:0x7f5a9ffd70c9 [ 20.106993][ T312] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 20.126562][ T312] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.134937][ T312] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 20.142876][ T312] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 20.150816][ T312] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 312] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 312] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 312] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 20.158766][ T312] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 20.166704][ T312] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.174744][ T312] debugfs: out of free dentries, can not create file 'stats' [pid 312] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [pid 312] exit_group(0) = ? [pid 312] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=312, 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 313 attached , child_tidptr=0x555555c675d0) = 313 [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, "78", 2) = 2 [ 20.255065][ T313] FAULT_INJECTION: forcing a failure. [ 20.255065][ T313] name failslab, interval 1, probability 0, space 0, times 0 [ 20.268022][ T313] CPU: 1 PID: 313 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 20.278138][ T313] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 20.288177][ T313] Call Trace: [ 20.291447][ T313] dump_stack+0x18e/0x1d5 [ 20.295761][ T313] should_fail+0x604/0x770 [ 20.300146][ T313] ? new_inode_pseudo+0x78/0x210 [ 20.305054][ T313] should_failslab+0x5/0x20 [ 20.309525][ T313] kmem_cache_alloc+0x24/0x210 [ 20.314258][ T313] new_inode_pseudo+0x78/0x210 [ 20.318996][ T313] new_inode+0x25/0x1d0 [ 20.323130][ T313] ? start_creating+0x183/0x270 [ 20.327947][ T313] __debugfs_create_file+0xb6/0x400 [ 20.333126][ T313] ? debugfs_create_dir+0x2e6/0x380 [ 20.338307][ T313] bdi_register_va+0x274/0x5e0 [ 20.343126][ T313] bdi_register+0x80/0xa0 [ 20.347426][ T313] ? __device_add_disk+0x50a/0x1210 [ 20.352594][ T313] bdi_register_owner+0x56/0xf0 [ 20.357412][ T313] __device_add_disk+0x583/0x1210 [ 20.362427][ T313] loop_add+0x554/0x710 [ 20.366558][ T313] loop_control_ioctl+0x465/0x600 [ 20.371551][ T313] ? loop_remove+0xa0/0xa0 [ 20.375939][ T313] do_vfs_ioctl+0x6d1/0x15b0 [ 20.380523][ T313] __x64_sys_ioctl+0xd4/0x110 [ 20.385172][ T313] do_syscall_64+0xcb/0x1c0 [ 20.389646][ T313] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.395506][ T313] RIP: 0033:0x7f5a9ffd70c9 [ 20.399892][ T313] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 20.419464][ T313] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.427842][ T313] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 20.435782][ T313] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 20.443722][ T313] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 313] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 313] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 313] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 20.451662][ T313] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 20.459616][ T313] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.467649][ T313] debugfs: out of free dentries, can not create file 'stats' [pid 313] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=0x555555c675d0) = 314 ./strace-static-x86_64: Process 314 attached [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, "78", 2) = 2 [ 20.583641][ T314] FAULT_INJECTION: forcing a failure. [ 20.583641][ T314] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 20.596862][ T314] CPU: 0 PID: 314 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 20.607086][ T314] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 20.617340][ T314] Call Trace: [ 20.620613][ T314] dump_stack+0x18e/0x1d5 [ 20.624925][ T314] should_fail+0x604/0x770 [ 20.629329][ T314] __alloc_pages_nodemask+0x12a/0x6f0 [ 20.634673][ T314] __get_free_pages+0xa/0x30 [ 20.639235][ T314] selinux_genfs_get_sid+0x55/0x250 [ 20.644422][ T314] inode_doinit_with_dentry+0x8ca/0xf30 [ 20.649939][ T314] security_d_instantiate+0xa5/0x100 [ 20.655195][ T314] d_instantiate+0x51/0x90 [ 20.659593][ T314] __debugfs_create_file+0x256/0x400 [ 20.664871][ T314] bdi_register_va+0x274/0x5e0 [ 20.669617][ T314] bdi_register+0x80/0xa0 [ 20.673930][ T314] ? __device_add_disk+0x50a/0x1210 [ 20.679112][ T314] bdi_register_owner+0x56/0xf0 [ 20.683947][ T314] __device_add_disk+0x583/0x1210 [ 20.688947][ T314] loop_add+0x554/0x710 [ 20.693081][ T314] loop_control_ioctl+0x465/0x600 [ 20.698085][ T314] ? loop_remove+0xa0/0xa0 [ 20.702485][ T314] do_vfs_ioctl+0x6d1/0x15b0 [ 20.707049][ T314] __x64_sys_ioctl+0xd4/0x110 [ 20.711703][ T314] do_syscall_64+0xcb/0x1c0 [ 20.716183][ T314] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.722055][ T314] RIP: 0033:0x7f5a9ffd70c9 [ 20.726441][ T314] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 20.746010][ T314] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 20.754390][ T314] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 20.762333][ T314] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 20.770283][ T314] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 314] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 314] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 314] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 314] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 315 ./strace-static-x86_64: Process 315 attached [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, "78", 2) = 2 [ 20.778242][ T314] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 20.786183][ T314] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 20.844287][ T315] FAULT_INJECTION: forcing a failure. [ 20.844287][ T315] name failslab, interval 1, probability 0, space 0, times 0 [ 20.857000][ T315] CPU: 0 PID: 315 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 20.867139][ T315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 20.877171][ T315] Call Trace: [ 20.880444][ T315] dump_stack+0x18e/0x1d5 [ 20.884849][ T315] should_fail+0x604/0x770 [ 20.889254][ T315] ? security_inode_alloc+0x24/0x130 [ 20.894521][ T315] should_failslab+0x5/0x20 [ 20.899009][ T315] kmem_cache_alloc+0x24/0x210 [ 20.903744][ T315] security_inode_alloc+0x24/0x130 [ 20.908832][ T315] inode_init_always+0x387/0x810 [ 20.913743][ T315] new_inode_pseudo+0x8f/0x210 [ 20.918476][ T315] new_inode+0x25/0x1d0 [ 20.922690][ T315] ? start_creating+0x183/0x270 [ 20.927511][ T315] __debugfs_create_file+0xb6/0x400 [ 20.932691][ T315] ? debugfs_create_dir+0x2e6/0x380 [ 20.937864][ T315] bdi_register_va+0x274/0x5e0 [ 20.942597][ T315] bdi_register+0x80/0xa0 [ 20.946900][ T315] ? __device_add_disk+0x50a/0x1210 [ 20.952070][ T315] bdi_register_owner+0x56/0xf0 [ 20.956906][ T315] __device_add_disk+0x583/0x1210 [ 20.962042][ T315] loop_add+0x554/0x710 [ 20.966183][ T315] loop_control_ioctl+0x465/0x600 [ 20.971178][ T315] ? loop_remove+0xa0/0xa0 [ 20.975565][ T315] do_vfs_ioctl+0x6d1/0x15b0 [ 20.980126][ T315] __x64_sys_ioctl+0xd4/0x110 [ 20.984778][ T315] do_syscall_64+0xcb/0x1c0 [ 20.989250][ T315] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 20.995115][ T315] RIP: 0033:0x7f5a9ffd70c9 [ 20.999497][ T315] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 21.019177][ T315] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 21.027663][ T315] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 21.035614][ T315] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [pid 315] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 315] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 315] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 315] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 316 ./strace-static-x86_64: Process 316 attached [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, "78", 2) = 2 [ 21.043558][ T315] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [ 21.051513][ T315] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 21.059454][ T315] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 21.068016][ T315] debugfs: out of free dentries, can not create file 'stats' [ 21.123530][ T316] FAULT_INJECTION: forcing a failure. [ 21.123530][ T316] name failslab, interval 1, probability 0, space 0, times 0 [ 21.136278][ T316] CPU: 0 PID: 316 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 21.146393][ T316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 21.156443][ T316] Call Trace: [ 21.159706][ T316] dump_stack+0x18e/0x1d5 [ 21.164007][ T316] should_fail+0x604/0x770 [ 21.168406][ T316] ? __d_alloc+0x2a/0x6a0 [ 21.172726][ T316] should_failslab+0x5/0x20 [ 21.177202][ T316] kmem_cache_alloc+0x24/0x210 [ 21.182015][ T316] __d_alloc+0x2a/0x6a0 [ 21.186160][ T316] ? save_stack+0x17b/0x1e0 [ 21.190647][ T316] ? free_pcp_prepare+0x1a4/0x290 [ 21.195651][ T316] d_alloc_parallel+0x7d/0x1210 [ 21.200488][ T316] ? bdi_register+0x80/0xa0 [ 21.204980][ T316] ? avc_has_perm_noaudit+0x2b0/0x370 [ 21.210320][ T316] ? __d_lookup+0x4d9/0x540 [ 21.214798][ T316] ? selinux_inode_permission+0x326/0x5b0 [ 21.220493][ T316] __lookup_slow+0xfa/0x3c0 [ 21.224990][ T316] lookup_one_len+0x3db/0x5d0 [ 21.229644][ T316] start_creating+0xec/0x270 [ 21.234214][ T316] __debugfs_create_file+0x74/0x400 [ 21.239389][ T316] ? debugfs_create_dir+0x2e6/0x380 [ 21.244571][ T316] bdi_register_va+0x274/0x5e0 [ 21.249306][ T316] bdi_register+0x80/0xa0 [ 21.253609][ T316] ? __device_add_disk+0x50a/0x1210 [ 21.258779][ T316] bdi_register_owner+0x56/0xf0 [ 21.263598][ T316] __device_add_disk+0x583/0x1210 [ 21.268598][ T316] loop_add+0x554/0x710 [ 21.272767][ T316] loop_control_ioctl+0x465/0x600 [ 21.277786][ T316] ? loop_remove+0xa0/0xa0 [ 21.282187][ T316] do_vfs_ioctl+0x6d1/0x15b0 [ 21.286755][ T316] __x64_sys_ioctl+0xd4/0x110 [ 21.291403][ T316] do_syscall_64+0xcb/0x1c0 [ 21.295880][ T316] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 21.301741][ T316] RIP: 0033:0x7f5a9ffd70c9 [pid 316] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 316] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 316] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 21.306122][ T316] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 21.325696][ T316] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 21.334084][ T316] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 21.342033][ T316] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 21.350412][ T316] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [ 21.358451][ T316] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 21.366395][ T316] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 316] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 317 ./strace-static-x86_64: Process 317 attached [pid 317] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 317] setpgid(0, 0) = 0 [pid 317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 317] write(3, "1000", 4) = 4 [pid 317] close(3) = 0 [pid 317] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 317] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 317] write(4, "78", 2) = 2 [ 21.455016][ T317] FAULT_INJECTION: forcing a failure. [ 21.455016][ T317] name failslab, interval 1, probability 0, space 0, times 0 [ 21.467801][ T317] CPU: 0 PID: 317 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 21.477929][ T317] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 21.487960][ T317] Call Trace: [ 21.491300][ T317] dump_stack+0x18e/0x1d5 [ 21.495612][ T317] should_fail+0x604/0x770 [ 21.500003][ T317] ? new_inode_pseudo+0x78/0x210 [ 21.504920][ T317] should_failslab+0x5/0x20 [ 21.509404][ T317] kmem_cache_alloc+0x24/0x210 [ 21.514145][ T317] new_inode_pseudo+0x78/0x210 [ 21.518886][ T317] new_inode+0x25/0x1d0 [ 21.523010][ T317] ? start_creating+0x183/0x270 [ 21.527831][ T317] __debugfs_create_file+0xb6/0x400 [ 21.532999][ T317] ? debugfs_create_dir+0x2e6/0x380 [ 21.538172][ T317] bdi_register_va+0x274/0x5e0 [ 21.542914][ T317] bdi_register+0x80/0xa0 [ 21.547211][ T317] ? __device_add_disk+0x50a/0x1210 [ 21.552468][ T317] bdi_register_owner+0x56/0xf0 [ 21.557295][ T317] __device_add_disk+0x583/0x1210 [ 21.562295][ T317] loop_add+0x554/0x710 [ 21.566431][ T317] loop_control_ioctl+0x465/0x600 [ 21.571429][ T317] ? loop_remove+0xa0/0xa0 [ 21.575840][ T317] do_vfs_ioctl+0x6d1/0x15b0 [ 21.580497][ T317] __x64_sys_ioctl+0xd4/0x110 [ 21.585157][ T317] do_syscall_64+0xcb/0x1c0 [ 21.589647][ T317] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 21.595538][ T317] RIP: 0033:0x7f5a9ffd70c9 [ 21.599946][ T317] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 21.619614][ T317] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 21.628266][ T317] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 21.636209][ T317] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 21.644168][ T317] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 317] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 317] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 317] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 21.652111][ T317] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 21.660054][ T317] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 21.668461][ T317] debugfs: out of free dentries, can not create file 'stats' [pid 317] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [pid 317] exit_group(0) = ? [pid 317] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=317, 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=0x555555c675d0) = 318 ./strace-static-x86_64: Process 318 attached [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, "78", 2) = 2 [ 21.725220][ T318] FAULT_INJECTION: forcing a failure. [ 21.725220][ T318] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 21.738568][ T318] CPU: 0 PID: 318 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 21.748715][ T318] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 21.758754][ T318] Call Trace: [ 21.762019][ T318] dump_stack+0x18e/0x1d5 [ 21.766320][ T318] should_fail+0x604/0x770 [ 21.770720][ T318] __alloc_pages_nodemask+0x12a/0x6f0 [ 21.776061][ T318] __get_free_pages+0xa/0x30 [ 21.780620][ T318] selinux_genfs_get_sid+0x55/0x250 [ 21.785791][ T318] inode_doinit_with_dentry+0x8ca/0xf30 [ 21.791870][ T318] security_d_instantiate+0xa5/0x100 [ 21.797125][ T318] d_instantiate+0x51/0x90 [ 21.801510][ T318] __debugfs_create_file+0x256/0x400 [ 21.806764][ T318] bdi_register_va+0x274/0x5e0 [ 21.811497][ T318] bdi_register+0x80/0xa0 [ 21.815799][ T318] ? __device_add_disk+0x50a/0x1210 [ 21.821067][ T318] bdi_register_owner+0x56/0xf0 [ 21.825886][ T318] __device_add_disk+0x583/0x1210 [ 21.830894][ T318] loop_add+0x554/0x710 [ 21.835017][ T318] loop_control_ioctl+0x465/0x600 [ 21.840028][ T318] ? loop_remove+0xa0/0xa0 [ 21.844428][ T318] do_vfs_ioctl+0x6d1/0x15b0 [ 21.848989][ T318] __x64_sys_ioctl+0xd4/0x110 [ 21.853635][ T318] do_syscall_64+0xcb/0x1c0 [ 21.858109][ T318] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 21.863969][ T318] RIP: 0033:0x7f5a9ffd70c9 [ 21.868356][ T318] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 21.888013][ T318] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 21.896394][ T318] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 21.904861][ T318] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 21.912812][ T318] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 318] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 318] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 318] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 21.920758][ T318] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 21.928709][ T318] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 318] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 319 ./strace-static-x86_64: Process 319 attached [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, "78", 2) = 2 [ 21.995113][ T319] FAULT_INJECTION: forcing a failure. [ 21.995113][ T319] name failslab, interval 1, probability 0, space 0, times 0 [ 22.007787][ T319] CPU: 0 PID: 319 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 22.017933][ T319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 22.028071][ T319] Call Trace: [ 22.031337][ T319] dump_stack+0x18e/0x1d5 [ 22.035642][ T319] should_fail+0x604/0x770 [ 22.040139][ T319] ? security_inode_alloc+0x24/0x130 [ 22.045397][ T319] should_failslab+0x5/0x20 [ 22.049875][ T319] kmem_cache_alloc+0x24/0x210 [ 22.054608][ T319] security_inode_alloc+0x24/0x130 [ 22.059688][ T319] inode_init_always+0x387/0x810 [ 22.064593][ T319] new_inode_pseudo+0x8f/0x210 [ 22.069323][ T319] new_inode+0x25/0x1d0 [ 22.073447][ T319] ? start_creating+0x183/0x270 [ 22.078270][ T319] __debugfs_create_file+0xb6/0x400 [ 22.083439][ T319] ? debugfs_create_dir+0x2e6/0x380 [ 22.088607][ T319] bdi_register_va+0x274/0x5e0 [ 22.093349][ T319] bdi_register+0x80/0xa0 [ 22.097647][ T319] ? __device_add_disk+0x50a/0x1210 [ 22.102815][ T319] bdi_register_owner+0x56/0xf0 [ 22.107655][ T319] __device_add_disk+0x583/0x1210 [ 22.112661][ T319] loop_add+0x554/0x710 [ 22.116792][ T319] loop_control_ioctl+0x465/0x600 [ 22.121788][ T319] ? loop_remove+0xa0/0xa0 [ 22.126188][ T319] do_vfs_ioctl+0x6d1/0x15b0 [ 22.130750][ T319] __x64_sys_ioctl+0xd4/0x110 [ 22.135396][ T319] do_syscall_64+0xcb/0x1c0 [ 22.139872][ T319] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 22.145734][ T319] RIP: 0033:0x7f5a9ffd70c9 [ 22.150121][ T319] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 22.169766][ T319] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.178156][ T319] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 22.186108][ T319] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [pid 319] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 319] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 319] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 319] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 320 ./strace-static-x86_64: Process 320 attached [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, "78", 2) = 2 [ 22.194051][ T319] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [ 22.201996][ T319] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 22.209938][ T319] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 22.218976][ T319] debugfs: out of free dentries, can not create file 'stats' [ 22.274045][ T320] FAULT_INJECTION: forcing a failure. [ 22.274045][ T320] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 22.287453][ T320] CPU: 0 PID: 320 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 22.297584][ T320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 22.307710][ T320] Call Trace: [ 22.310987][ T320] dump_stack+0x18e/0x1d5 [ 22.315308][ T320] should_fail+0x604/0x770 [ 22.319713][ T320] __alloc_pages_nodemask+0x12a/0x6f0 [ 22.325073][ T320] __get_free_pages+0xa/0x30 [ 22.329654][ T320] selinux_genfs_get_sid+0x55/0x250 [ 22.334838][ T320] inode_doinit_with_dentry+0x8ca/0xf30 [ 22.340368][ T320] security_d_instantiate+0xa5/0x100 [ 22.345630][ T320] d_instantiate+0x51/0x90 [ 22.350042][ T320] __debugfs_create_file+0x256/0x400 [ 22.355299][ T320] bdi_register_va+0x274/0x5e0 [ 22.360129][ T320] bdi_register+0x80/0xa0 [ 22.364527][ T320] ? __device_add_disk+0x50a/0x1210 [ 22.369708][ T320] bdi_register_owner+0x56/0xf0 [ 22.374543][ T320] __device_add_disk+0x583/0x1210 [ 22.379539][ T320] loop_add+0x554/0x710 [ 22.383669][ T320] loop_control_ioctl+0x465/0x600 [ 22.388716][ T320] ? loop_remove+0xa0/0xa0 [ 22.393121][ T320] do_vfs_ioctl+0x6d1/0x15b0 [ 22.397714][ T320] __x64_sys_ioctl+0xd4/0x110 [ 22.402384][ T320] do_syscall_64+0xcb/0x1c0 [ 22.406861][ T320] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 22.412730][ T320] RIP: 0033:0x7f5a9ffd70c9 [ 22.417118][ T320] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 22.436800][ T320] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.445183][ T320] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 22.453128][ T320] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 22.461069][ T320] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 320] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 320] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 320] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 320] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 321 ./strace-static-x86_64: Process 321 attached [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, "78", 2) = 2 [ 22.469012][ T320] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 22.476954][ T320] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 22.524271][ T321] FAULT_INJECTION: forcing a failure. [ 22.524271][ T321] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 22.537566][ T321] CPU: 0 PID: 321 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 22.547703][ T321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 22.557727][ T321] Call Trace: [ 22.560996][ T321] dump_stack+0x18e/0x1d5 [ 22.565303][ T321] should_fail+0x604/0x770 [ 22.569706][ T321] __alloc_pages_nodemask+0x12a/0x6f0 [ 22.575048][ T321] __get_free_pages+0xa/0x30 [ 22.579608][ T321] selinux_genfs_get_sid+0x55/0x250 [ 22.584773][ T321] inode_doinit_with_dentry+0x8ca/0xf30 [ 22.590292][ T321] security_d_instantiate+0xa5/0x100 [ 22.595544][ T321] d_instantiate+0x51/0x90 [ 22.599929][ T321] debugfs_create_dir+0x1a1/0x380 [ 22.604921][ T321] bdi_register_va+0x232/0x5e0 [ 22.609650][ T321] bdi_register+0x80/0xa0 [ 22.613949][ T321] ? __device_add_disk+0x50a/0x1210 [ 22.619113][ T321] bdi_register_owner+0x56/0xf0 [ 22.623944][ T321] __device_add_disk+0x583/0x1210 [ 22.628938][ T321] loop_add+0x554/0x710 [ 22.633084][ T321] loop_control_ioctl+0x465/0x600 [ 22.638089][ T321] ? loop_remove+0xa0/0xa0 [ 22.642479][ T321] do_vfs_ioctl+0x6d1/0x15b0 [ 22.647061][ T321] __x64_sys_ioctl+0xd4/0x110 [ 22.651712][ T321] do_syscall_64+0xcb/0x1c0 [ 22.656204][ T321] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 22.662065][ T321] RIP: 0033:0x7f5a9ffd70c9 [ 22.666535][ T321] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 22.686122][ T321] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.694500][ T321] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 22.702455][ T321] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 22.710393][ T321] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 321] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 321] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 321] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 22.718343][ T321] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 22.726285][ T321] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 321] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 322 attached , child_tidptr=0x555555c675d0) = 322 [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, "78", 2) = 2 [ 22.795724][ T322] FAULT_INJECTION: forcing a failure. [ 22.795724][ T322] name failslab, interval 1, probability 0, space 0, times 0 [ 22.808365][ T322] CPU: 0 PID: 322 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 22.818487][ T322] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 22.828543][ T322] Call Trace: [ 22.831810][ T322] dump_stack+0x18e/0x1d5 [ 22.836113][ T322] should_fail+0x604/0x770 [ 22.840517][ T322] ? bdi_register_va+0x46d/0x5e0 [ 22.845428][ T322] ? kobj_map+0x74/0x650 [ 22.849646][ T322] should_failslab+0x5/0x20 [ 22.854135][ T322] __kmalloc+0x51/0x2b0 [ 22.858263][ T322] kobj_map+0x74/0x650 [ 22.862300][ T322] ? disk_check_events+0x560/0x560 [ 22.867380][ T322] ? kobject_get+0x8d/0xb0 [ 22.871767][ T322] ? exact_match+0x10/0x10 [ 22.876159][ T322] __device_add_disk+0x5fc/0x1210 [ 22.881157][ T322] loop_add+0x554/0x710 [ 22.885283][ T322] loop_control_ioctl+0x465/0x600 [ 22.890274][ T322] ? loop_remove+0xa0/0xa0 [ 22.894658][ T322] do_vfs_ioctl+0x6d1/0x15b0 [ 22.899218][ T322] __x64_sys_ioctl+0xd4/0x110 [ 22.903861][ T322] do_syscall_64+0xcb/0x1c0 [ 22.908332][ T322] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 22.914193][ T322] RIP: 0033:0x7f5a9ffd70c9 [ 22.918592][ T322] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [pid 322] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 322] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 322] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 22.938163][ T322] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 22.946539][ T322] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 22.954482][ T322] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 22.962432][ T322] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [ 22.970383][ T322] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 22.978325][ T322] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 322] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=0x555555c675d0) = 323 ./strace-static-x86_64: Process 323 attached [pid 323] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 323] setpgid(0, 0) = 0 [pid 323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 323] write(3, "1000", 4) = 4 [pid 323] close(3) = 0 [pid 323] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 323] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 323] write(4, "78", 2) = 2 [ 23.044457][ T323] FAULT_INJECTION: forcing a failure. [ 23.044457][ T323] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 23.057714][ T323] CPU: 0 PID: 323 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 23.067895][ T323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 23.077927][ T323] Call Trace: [ 23.081198][ T323] dump_stack+0x18e/0x1d5 [ 23.085499][ T323] should_fail+0x604/0x770 [ 23.089886][ T323] __alloc_pages_nodemask+0x12a/0x6f0 [ 23.095244][ T323] __get_free_pages+0xa/0x30 [ 23.099807][ T323] selinux_genfs_get_sid+0x55/0x250 [ 23.104980][ T323] inode_doinit_with_dentry+0x8ca/0xf30 [ 23.110517][ T323] security_d_instantiate+0xa5/0x100 [ 23.115786][ T323] d_instantiate+0x51/0x90 [ 23.120176][ T323] __debugfs_create_file+0x256/0x400 [ 23.125441][ T323] bdi_register_va+0x274/0x5e0 [ 23.130171][ T323] bdi_register+0x80/0xa0 [ 23.134471][ T323] ? __device_add_disk+0x50a/0x1210 [ 23.139637][ T323] bdi_register_owner+0x56/0xf0 [ 23.144458][ T323] __device_add_disk+0x583/0x1210 [ 23.149464][ T323] loop_add+0x554/0x710 [ 23.153595][ T323] loop_control_ioctl+0x465/0x600 [ 23.158606][ T323] ? loop_remove+0xa0/0xa0 [ 23.163018][ T323] do_vfs_ioctl+0x6d1/0x15b0 [ 23.167590][ T323] __x64_sys_ioctl+0xd4/0x110 [ 23.172252][ T323] do_syscall_64+0xcb/0x1c0 [ 23.176743][ T323] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 23.182703][ T323] RIP: 0033:0x7f5a9ffd70c9 [ 23.187092][ T323] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 23.206680][ T323] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 23.215081][ T323] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 23.223029][ T323] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 23.231112][ T323] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 323] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 323] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 323] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 23.239061][ T323] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 23.247029][ T323] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 323] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [pid 323] exit_group(0) = ? [pid 323] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=323, 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=0x555555c675d0) = 324 ./strace-static-x86_64: Process 324 attached [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, "78", 2) = 2 [ 23.312881][ T324] FAULT_INJECTION: forcing a failure. [ 23.312881][ T324] name failslab, interval 1, probability 0, space 0, times 0 [ 23.325539][ T324] CPU: 0 PID: 324 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 23.335676][ T324] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 23.345700][ T324] Call Trace: [ 23.348972][ T324] dump_stack+0x18e/0x1d5 [ 23.353282][ T324] should_fail+0x604/0x770 [ 23.357687][ T324] ? new_inode_pseudo+0x78/0x210 [ 23.362592][ T324] should_failslab+0x5/0x20 [ 23.367064][ T324] kmem_cache_alloc+0x24/0x210 [ 23.371794][ T324] new_inode_pseudo+0x78/0x210 [ 23.376525][ T324] new_inode+0x25/0x1d0 [ 23.380652][ T324] ? start_creating+0x183/0x270 [ 23.385471][ T324] __debugfs_create_file+0xb6/0x400 [ 23.390665][ T324] ? debugfs_create_dir+0x2e6/0x380 [ 23.395834][ T324] bdi_register_va+0x274/0x5e0 [ 23.400678][ T324] bdi_register+0x80/0xa0 [ 23.404986][ T324] ? __device_add_disk+0x50a/0x1210 [ 23.410164][ T324] bdi_register_owner+0x56/0xf0 [ 23.415064][ T324] __device_add_disk+0x583/0x1210 [ 23.420094][ T324] loop_add+0x554/0x710 [ 23.424244][ T324] loop_control_ioctl+0x465/0x600 [ 23.429254][ T324] ? loop_remove+0xa0/0xa0 [ 23.433648][ T324] do_vfs_ioctl+0x6d1/0x15b0 [ 23.438227][ T324] __x64_sys_ioctl+0xd4/0x110 [ 23.442890][ T324] do_syscall_64+0xcb/0x1c0 [ 23.447372][ T324] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 23.453237][ T324] RIP: 0033:0x7f5a9ffd70c9 [ 23.457628][ T324] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 23.477200][ T324] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 23.485587][ T324] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 23.493535][ T324] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 23.501490][ T324] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 324] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 324] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 324] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 23.509431][ T324] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 23.517372][ T324] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 23.525471][ T324] debugfs: out of free dentries, can not create file 'stats' [pid 324] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 325 ./strace-static-x86_64: Process 325 attached [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, "78", 2) = 2 [ 23.602548][ T325] FAULT_INJECTION: forcing a failure. [ 23.602548][ T325] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 23.615823][ T325] CPU: 1 PID: 325 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 23.625946][ T325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 23.635988][ T325] Call Trace: [ 23.639254][ T325] dump_stack+0x18e/0x1d5 [ 23.643649][ T325] should_fail+0x604/0x770 [ 23.648043][ T325] __alloc_pages_nodemask+0x12a/0x6f0 [ 23.653384][ T325] __get_free_pages+0xa/0x30 [ 23.657944][ T325] selinux_genfs_get_sid+0x55/0x250 [ 23.663109][ T325] inode_doinit_with_dentry+0x8ca/0xf30 [ 23.668642][ T325] security_d_instantiate+0xa5/0x100 [ 23.673896][ T325] d_instantiate+0x51/0x90 [ 23.678282][ T325] __debugfs_create_file+0x256/0x400 [ 23.683534][ T325] bdi_register_va+0x274/0x5e0 [ 23.688265][ T325] bdi_register+0x80/0xa0 [ 23.692560][ T325] ? __device_add_disk+0x50a/0x1210 [ 23.697723][ T325] bdi_register_owner+0x56/0xf0 [ 23.702566][ T325] __device_add_disk+0x583/0x1210 [ 23.707655][ T325] loop_add+0x554/0x710 [ 23.711778][ T325] loop_control_ioctl+0x465/0x600 [ 23.716866][ T325] ? loop_remove+0xa0/0xa0 [ 23.721257][ T325] do_vfs_ioctl+0x6d1/0x15b0 [ 23.725815][ T325] __x64_sys_ioctl+0xd4/0x110 [ 23.730459][ T325] do_syscall_64+0xcb/0x1c0 [ 23.734931][ T325] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 23.740792][ T325] RIP: 0033:0x7f5a9ffd70c9 [ 23.745242][ T325] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 23.764819][ T325] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 23.773205][ T325] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 23.781144][ T325] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 23.789190][ T325] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 325] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 325] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 325] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 325] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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, child_tidptr=0x555555c675d0) = 326 ./strace-static-x86_64: Process 326 attached [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, "78", 2) = 2 [ 23.797130][ T325] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 23.805077][ T325] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 23.864393][ T326] FAULT_INJECTION: forcing a failure. [ 23.864393][ T326] name failslab, interval 1, probability 0, space 0, times 0 [ 23.877004][ T326] CPU: 0 PID: 326 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 23.887118][ T326] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 23.897146][ T326] Call Trace: [ 23.900411][ T326] dump_stack+0x18e/0x1d5 [ 23.904733][ T326] should_fail+0x604/0x770 [ 23.909124][ T326] ? security_inode_alloc+0x24/0x130 [ 23.914384][ T326] should_failslab+0x5/0x20 [ 23.918870][ T326] kmem_cache_alloc+0x24/0x210 [ 23.923608][ T326] security_inode_alloc+0x24/0x130 [ 23.928695][ T326] inode_init_always+0x387/0x810 [ 23.933603][ T326] new_inode_pseudo+0x8f/0x210 [ 23.938349][ T326] new_inode+0x25/0x1d0 [ 23.942475][ T326] ? start_creating+0x183/0x270 [ 23.947290][ T326] __debugfs_create_file+0xb6/0x400 [ 23.952457][ T326] ? debugfs_create_dir+0x2e6/0x380 [ 23.957628][ T326] bdi_register_va+0x274/0x5e0 [ 23.962362][ T326] bdi_register+0x80/0xa0 [ 23.966659][ T326] ? __device_add_disk+0x50a/0x1210 [ 23.971925][ T326] bdi_register_owner+0x56/0xf0 [ 23.976774][ T326] __device_add_disk+0x583/0x1210 [ 23.981785][ T326] loop_add+0x554/0x710 [ 23.985919][ T326] loop_control_ioctl+0x465/0x600 [ 23.990920][ T326] ? loop_remove+0xa0/0xa0 [ 23.995303][ T326] do_vfs_ioctl+0x6d1/0x15b0 [ 23.999864][ T326] __x64_sys_ioctl+0xd4/0x110 [ 24.004509][ T326] do_syscall_64+0xcb/0x1c0 [ 24.008987][ T326] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 24.014852][ T326] RIP: 0033:0x7f5a9ffd70c9 [ 24.019233][ T326] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 24.038813][ T326] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 24.047198][ T326] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 24.055146][ T326] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [pid 326] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 326] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 326] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 326] ioctl(5, LOOP_CTL_REMOVE, 12) = -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=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 327 ./strace-static-x86_64: Process 327 attached [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, "78", 2) = 2 [pid 327] ioctl(3, LOOP_CTL_ADD, 12) = -1 EEXIST (File exists) [pid 327] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 327] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 327] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 328 ./strace-static-x86_64: Process 328 attached [pid 328] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 328] setpgid(0, 0) = 0 [ 24.063096][ T326] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [ 24.071042][ T326] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 24.078981][ T326] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 24.087901][ T326] debugfs: out of free dentries, can not create file 'stats' [pid 328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 328] write(3, "1000", 4) = 4 [pid 328] close(3) = 0 [pid 328] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 328] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 328] write(4, "78", 2) = 2 [ 24.153667][ T328] FAULT_INJECTION: forcing a failure. [ 24.153667][ T328] name failslab, interval 1, probability 0, space 0, times 0 [ 24.166287][ T328] CPU: 0 PID: 328 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 24.176412][ T328] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 24.186440][ T328] Call Trace: [ 24.189704][ T328] dump_stack+0x18e/0x1d5 [ 24.194004][ T328] should_fail+0x604/0x770 [ 24.198388][ T328] ? security_inode_alloc+0x24/0x130 [ 24.203639][ T328] should_failslab+0x5/0x20 [ 24.208114][ T328] kmem_cache_alloc+0x24/0x210 [ 24.212868][ T328] security_inode_alloc+0x24/0x130 [ 24.217962][ T328] inode_init_always+0x387/0x810 [ 24.222878][ T328] new_inode_pseudo+0x8f/0x210 [ 24.227632][ T328] new_inode+0x25/0x1d0 [ 24.231766][ T328] ? start_creating+0x183/0x270 [ 24.236585][ T328] __debugfs_create_file+0xb6/0x400 [ 24.241750][ T328] ? debugfs_create_dir+0x2e6/0x380 [ 24.246916][ T328] bdi_register_va+0x274/0x5e0 [ 24.251670][ T328] bdi_register+0x80/0xa0 [ 24.255977][ T328] ? __device_add_disk+0x50a/0x1210 [ 24.261153][ T328] bdi_register_owner+0x56/0xf0 [ 24.265983][ T328] __device_add_disk+0x583/0x1210 [ 24.271063][ T328] loop_add+0x554/0x710 [ 24.275186][ T328] loop_control_ioctl+0x465/0x600 [ 24.280186][ T328] ? loop_remove+0xa0/0xa0 [ 24.284577][ T328] do_vfs_ioctl+0x6d1/0x15b0 [ 24.289135][ T328] __x64_sys_ioctl+0xd4/0x110 [ 24.293778][ T328] do_syscall_64+0xcb/0x1c0 [ 24.298253][ T328] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 24.304113][ T328] RIP: 0033:0x7f5a9ffd70c9 [ 24.308503][ T328] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 24.328082][ T328] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 24.336550][ T328] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 24.344488][ T328] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [pid 328] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 328] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 328] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 328] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy) [pid 328] exit_group(0) = ? [pid 328] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=328, 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=0x555555c675d0) = 329 ./strace-static-x86_64: Process 329 attached [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, "78", 2) = 2 [pid 329] ioctl(3, LOOP_CTL_ADD, 12) = -1 EEXIST (File exists) [pid 329] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 329] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 24.352433][ T328] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [ 24.360397][ T328] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 24.368336][ T328] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 24.376364][ T328] debugfs: out of free dentries, can not create file 'stats' [pid 329] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 330 attached , child_tidptr=0x555555c675d0) = 330 [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, "78", 2) = 2 [ 24.444551][ T330] FAULT_INJECTION: forcing a failure. [ 24.444551][ T330] name failslab, interval 1, probability 0, space 0, times 0 [ 24.457209][ T330] CPU: 1 PID: 330 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 24.467339][ T330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 24.477376][ T330] Call Trace: [ 24.480651][ T330] dump_stack+0x18e/0x1d5 [ 24.484960][ T330] should_fail+0x604/0x770 [ 24.489344][ T330] ? security_inode_alloc+0x24/0x130 [ 24.494612][ T330] should_failslab+0x5/0x20 [ 24.499086][ T330] kmem_cache_alloc+0x24/0x210 [ 24.503823][ T330] security_inode_alloc+0x24/0x130 [ 24.508918][ T330] inode_init_always+0x387/0x810 [ 24.513822][ T330] new_inode_pseudo+0x8f/0x210 [ 24.518559][ T330] new_inode+0x25/0x1d0 [ 24.522701][ T330] ? start_creating+0x183/0x270 [ 24.527518][ T330] __debugfs_create_file+0xb6/0x400 [ 24.532700][ T330] ? debugfs_create_dir+0x2e6/0x380 [ 24.537867][ T330] bdi_register_va+0x274/0x5e0 [ 24.542600][ T330] bdi_register+0x80/0xa0 [ 24.546918][ T330] ? __device_add_disk+0x50a/0x1210 [ 24.552084][ T330] bdi_register_owner+0x56/0xf0 [ 24.556916][ T330] __device_add_disk+0x583/0x1210 [ 24.561913][ T330] loop_add+0x554/0x710 [ 24.566045][ T330] loop_control_ioctl+0x465/0x600 [ 24.571045][ T330] ? loop_remove+0xa0/0xa0 [ 24.575430][ T330] do_vfs_ioctl+0x6d1/0x15b0 [ 24.579989][ T330] __x64_sys_ioctl+0xd4/0x110 [ 24.584632][ T330] do_syscall_64+0xcb/0x1c0 [ 24.589107][ T330] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 24.594965][ T330] RIP: 0033:0x7f5a9ffd70c9 [ 24.599355][ T330] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 24.618940][ T330] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 24.627320][ T330] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 24.635260][ T330] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [pid 330] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 330] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 330] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 24.643201][ T330] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [ 24.651250][ T330] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 24.659199][ T330] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 24.667281][ T330] debugfs: out of free dentries, can not create file 'stats' [pid 330] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 331 ./strace-static-x86_64: Process 331 attached [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, "78", 2) = 2 [ 24.734423][ T331] FAULT_INJECTION: forcing a failure. [ 24.734423][ T331] name failslab, interval 1, probability 0, space 0, times 0 [ 24.747098][ T331] CPU: 1 PID: 331 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 24.758305][ T331] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 24.768345][ T331] Call Trace: [ 24.771624][ T331] dump_stack+0x18e/0x1d5 [ 24.775923][ T331] should_fail+0x604/0x770 [ 24.780308][ T331] ? __d_alloc+0x2a/0x6a0 [ 24.784605][ T331] should_failslab+0x5/0x20 [ 24.789074][ T331] kmem_cache_alloc+0x24/0x210 [ 24.793808][ T331] __d_alloc+0x2a/0x6a0 [ 24.797936][ T331] ? save_stack+0x17b/0x1e0 [ 24.802422][ T331] ? free_pcp_prepare+0x1a4/0x290 [ 24.807414][ T331] d_alloc_parallel+0x7d/0x1210 [ 24.812235][ T331] ? bdi_register+0x80/0xa0 [ 24.816723][ T331] ? avc_has_perm_noaudit+0x2b0/0x370 [ 24.822159][ T331] ? __d_lookup+0x4d9/0x540 [ 24.826635][ T331] ? selinux_inode_permission+0x326/0x5b0 [ 24.832321][ T331] __lookup_slow+0xfa/0x3c0 [ 24.836791][ T331] lookup_one_len+0x3db/0x5d0 [ 24.841440][ T331] start_creating+0xec/0x270 [ 24.845997][ T331] __debugfs_create_file+0x74/0x400 [ 24.851167][ T331] ? debugfs_create_dir+0x2e6/0x380 [ 24.856346][ T331] bdi_register_va+0x274/0x5e0 [ 24.861075][ T331] bdi_register+0x80/0xa0 [ 24.865380][ T331] ? __device_add_disk+0x50a/0x1210 [ 24.870545][ T331] bdi_register_owner+0x56/0xf0 [ 24.875366][ T331] __device_add_disk+0x583/0x1210 [ 24.880358][ T331] loop_add+0x554/0x710 [ 24.884482][ T331] loop_control_ioctl+0x465/0x600 [ 24.889481][ T331] ? loop_remove+0xa0/0xa0 [ 24.893865][ T331] do_vfs_ioctl+0x6d1/0x15b0 [ 24.898431][ T331] __x64_sys_ioctl+0xd4/0x110 [ 24.903087][ T331] do_syscall_64+0xcb/0x1c0 [ 24.907573][ T331] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 24.913448][ T331] RIP: 0033:0x7f5a9ffd70c9 [pid 331] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 331] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 331] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 24.917835][ T331] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 24.937413][ T331] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 24.945800][ T331] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 24.953751][ T331] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 24.961695][ T331] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [ 24.969635][ T331] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 24.977618][ T331] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 331] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=0x555555c675d0) = 332 ./strace-static-x86_64: Process 332 attached [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, "78", 2) = 2 [ 25.035138][ T332] FAULT_INJECTION: forcing a failure. [ 25.035138][ T332] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 25.048388][ T332] CPU: 1 PID: 332 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 25.058529][ T332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 25.068555][ T332] Call Trace: [ 25.071837][ T332] dump_stack+0x18e/0x1d5 [ 25.076145][ T332] should_fail+0x604/0x770 [ 25.080556][ T332] __alloc_pages_nodemask+0x12a/0x6f0 [ 25.085894][ T332] __get_free_pages+0xa/0x30 [ 25.090451][ T332] selinux_genfs_get_sid+0x55/0x250 [ 25.095619][ T332] inode_doinit_with_dentry+0x8ca/0xf30 [ 25.101150][ T332] security_d_instantiate+0xa5/0x100 [ 25.106404][ T332] d_instantiate+0x51/0x90 [ 25.110795][ T332] __debugfs_create_file+0x256/0x400 [ 25.116051][ T332] bdi_register_va+0x274/0x5e0 [ 25.120782][ T332] bdi_register+0x80/0xa0 [ 25.125094][ T332] ? __device_add_disk+0x50a/0x1210 [ 25.130257][ T332] bdi_register_owner+0x56/0xf0 [ 25.135074][ T332] __device_add_disk+0x583/0x1210 [ 25.140069][ T332] loop_add+0x554/0x710 [ 25.144192][ T332] loop_control_ioctl+0x465/0x600 [ 25.149186][ T332] ? loop_remove+0xa0/0xa0 [ 25.153570][ T332] do_vfs_ioctl+0x6d1/0x15b0 [ 25.158128][ T332] __x64_sys_ioctl+0xd4/0x110 [ 25.162771][ T332] do_syscall_64+0xcb/0x1c0 [ 25.167245][ T332] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 25.173103][ T332] RIP: 0033:0x7f5a9ffd70c9 [ 25.177492][ T332] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 25.197063][ T332] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 25.205445][ T332] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 25.213390][ T332] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 25.221337][ T332] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 332] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 332] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 332] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 332] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 333 ./strace-static-x86_64: Process 333 attached [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, "78", 2) = 2 [ 25.229285][ T332] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 25.237230][ T332] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 25.295000][ T333] FAULT_INJECTION: forcing a failure. [ 25.295000][ T333] name failslab, interval 1, probability 0, space 0, times 0 [ 25.307705][ T333] CPU: 1 PID: 333 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 25.317832][ T333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 25.327857][ T333] Call Trace: [ 25.331146][ T333] dump_stack+0x18e/0x1d5 [ 25.335460][ T333] should_fail+0x604/0x770 [ 25.339855][ T333] ? new_inode_pseudo+0x78/0x210 [ 25.344760][ T333] should_failslab+0x5/0x20 [ 25.349239][ T333] kmem_cache_alloc+0x24/0x210 [ 25.353973][ T333] new_inode_pseudo+0x78/0x210 [ 25.358715][ T333] new_inode+0x25/0x1d0 [ 25.362841][ T333] ? start_creating+0x183/0x270 [ 25.367687][ T333] __debugfs_create_file+0xb6/0x400 [ 25.372867][ T333] ? debugfs_create_dir+0x2e6/0x380 [ 25.378036][ T333] bdi_register_va+0x274/0x5e0 [ 25.382769][ T333] bdi_register+0x80/0xa0 [ 25.387076][ T333] ? __device_add_disk+0x50a/0x1210 [ 25.392248][ T333] bdi_register_owner+0x56/0xf0 [ 25.397067][ T333] __device_add_disk+0x583/0x1210 [ 25.402060][ T333] loop_add+0x554/0x710 [ 25.406186][ T333] loop_control_ioctl+0x465/0x600 [ 25.411176][ T333] ? loop_remove+0xa0/0xa0 [ 25.415562][ T333] do_vfs_ioctl+0x6d1/0x15b0 [ 25.420132][ T333] __x64_sys_ioctl+0xd4/0x110 [ 25.424790][ T333] do_syscall_64+0xcb/0x1c0 [ 25.429271][ T333] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 25.435140][ T333] RIP: 0033:0x7f5a9ffd70c9 [ 25.439524][ T333] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 25.459271][ T333] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 25.467653][ T333] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 25.475594][ T333] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 25.483538][ T333] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 333] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 333] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 333] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 25.491480][ T333] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 25.499429][ T333] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 25.508324][ T333] debugfs: out of free dentries, can not create file 'stats' [pid 333] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 334 ./strace-static-x86_64: Process 334 attached [pid 334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 334] setpgid(0, 0) = 0 [pid 334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 334] write(3, "1000", 4) = 4 [pid 334] close(3) = 0 [pid 334] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 334] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 334] write(4, "78", 2) = 2 [ 25.573759][ T334] FAULT_INJECTION: forcing a failure. [ 25.573759][ T334] name failslab, interval 1, probability 0, space 0, times 0 [ 25.586430][ T334] CPU: 1 PID: 334 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 25.596552][ T334] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 25.606681][ T334] Call Trace: [ 25.609951][ T334] dump_stack+0x18e/0x1d5 [ 25.614262][ T334] should_fail+0x604/0x770 [ 25.618666][ T334] ? bdi_register_va+0x46d/0x5e0 [ 25.623664][ T334] ? kobj_map+0x74/0x650 [ 25.627876][ T334] should_failslab+0x5/0x20 [ 25.632347][ T334] __kmalloc+0x51/0x2b0 [ 25.636492][ T334] kobj_map+0x74/0x650 [ 25.640534][ T334] ? disk_check_events+0x560/0x560 [ 25.645638][ T334] ? kobject_get+0x8d/0xb0 [ 25.650029][ T334] ? exact_match+0x10/0x10 [ 25.654416][ T334] __device_add_disk+0x5fc/0x1210 [ 25.659415][ T334] loop_add+0x554/0x710 [ 25.663545][ T334] loop_control_ioctl+0x465/0x600 [ 25.668540][ T334] ? loop_remove+0xa0/0xa0 [ 25.672926][ T334] do_vfs_ioctl+0x6d1/0x15b0 [ 25.677487][ T334] __x64_sys_ioctl+0xd4/0x110 [ 25.682133][ T334] do_syscall_64+0xcb/0x1c0 [ 25.686606][ T334] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 25.692470][ T334] RIP: 0033:0x7f5a9ffd70c9 [ 25.696853][ T334] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [pid 334] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 334] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 334] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 25.716426][ T334] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 25.724809][ T334] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 25.732750][ T334] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 25.740775][ T334] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [ 25.748716][ T334] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 25.756748][ T334] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 334] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [pid 334] exit_group(0) = ? [pid 334] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=334, 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=0x555555c675d0) = 335 ./strace-static-x86_64: Process 335 attached [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, "78", 2) = 2 [ 25.813721][ T335] FAULT_INJECTION: forcing a failure. [ 25.813721][ T335] name failslab, interval 1, probability 0, space 0, times 0 [ 25.826363][ T335] CPU: 1 PID: 335 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 25.836479][ T335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 25.846506][ T335] Call Trace: [ 25.849775][ T335] dump_stack+0x18e/0x1d5 [ 25.854174][ T335] should_fail+0x604/0x770 [ 25.858580][ T335] ? __d_alloc+0x2a/0x6a0 [ 25.862885][ T335] should_failslab+0x5/0x20 [ 25.867359][ T335] kmem_cache_alloc+0x24/0x210 [ 25.872106][ T335] __d_alloc+0x2a/0x6a0 [ 25.876242][ T335] ? save_stack+0x17b/0x1e0 [ 25.880721][ T335] ? free_pcp_prepare+0x1a4/0x290 [ 25.885720][ T335] d_alloc_parallel+0x7d/0x1210 [ 25.890545][ T335] ? bdi_register+0x80/0xa0 [ 25.895022][ T335] ? avc_has_perm_noaudit+0x2b0/0x370 [ 25.900365][ T335] ? __d_lookup+0x4d9/0x540 [ 25.904844][ T335] ? selinux_inode_permission+0x326/0x5b0 [ 25.910548][ T335] __lookup_slow+0xfa/0x3c0 [ 25.915031][ T335] lookup_one_len+0x3db/0x5d0 [ 25.919682][ T335] start_creating+0xec/0x270 [ 25.924245][ T335] __debugfs_create_file+0x74/0x400 [ 25.929418][ T335] ? debugfs_create_dir+0x2e6/0x380 [ 25.934583][ T335] bdi_register_va+0x274/0x5e0 [ 25.939313][ T335] bdi_register+0x80/0xa0 [ 25.943617][ T335] ? __device_add_disk+0x50a/0x1210 [ 25.948790][ T335] bdi_register_owner+0x56/0xf0 [ 25.953614][ T335] __device_add_disk+0x583/0x1210 [ 25.958608][ T335] loop_add+0x554/0x710 [ 25.962731][ T335] loop_control_ioctl+0x465/0x600 [ 25.967737][ T335] ? loop_remove+0xa0/0xa0 [ 25.972125][ T335] do_vfs_ioctl+0x6d1/0x15b0 [ 25.976689][ T335] __x64_sys_ioctl+0xd4/0x110 [ 25.981336][ T335] do_syscall_64+0xcb/0x1c0 [ 25.985899][ T335] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 25.991765][ T335] RIP: 0033:0x7f5a9ffd70c9 [pid 335] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 335] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 335] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 25.996160][ T335] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 26.015743][ T335] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 26.024134][ T335] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 26.032079][ T335] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 26.040144][ T335] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [ 26.048091][ T335] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 26.056040][ T335] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 335] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=1} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 336 attached , child_tidptr=0x555555c675d0) = 336 [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, "78", 2) = 2 [ 26.114509][ T336] FAULT_INJECTION: forcing a failure. [ 26.114509][ T336] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 26.128422][ T336] CPU: 0 PID: 336 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 26.138542][ T336] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 26.148699][ T336] Call Trace: [ 26.151972][ T336] dump_stack+0x18e/0x1d5 [ 26.156279][ T336] should_fail+0x604/0x770 [ 26.160679][ T336] __alloc_pages_nodemask+0x12a/0x6f0 [ 26.166040][ T336] __get_free_pages+0xa/0x30 [ 26.170619][ T336] selinux_genfs_get_sid+0x55/0x250 [ 26.175796][ T336] inode_doinit_with_dentry+0x8ca/0xf30 [ 26.181441][ T336] security_d_instantiate+0xa5/0x100 [ 26.186707][ T336] d_instantiate+0x51/0x90 [ 26.191140][ T336] __debugfs_create_file+0x256/0x400 [ 26.196399][ T336] bdi_register_va+0x274/0x5e0 [ 26.201135][ T336] bdi_register+0x80/0xa0 [ 26.205546][ T336] ? __device_add_disk+0x50a/0x1210 [ 26.210715][ T336] bdi_register_owner+0x56/0xf0 [ 26.215551][ T336] __device_add_disk+0x583/0x1210 [ 26.220721][ T336] loop_add+0x554/0x710 [ 26.224848][ T336] loop_control_ioctl+0x465/0x600 [ 26.229842][ T336] ? loop_remove+0xa0/0xa0 [ 26.234227][ T336] do_vfs_ioctl+0x6d1/0x15b0 [ 26.238881][ T336] __x64_sys_ioctl+0xd4/0x110 [ 26.243542][ T336] do_syscall_64+0xcb/0x1c0 [ 26.248015][ T336] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 26.253882][ T336] RIP: 0033:0x7f5a9ffd70c9 [ 26.258265][ T336] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 26.278051][ T336] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 26.286438][ T336] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 26.294389][ T336] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 26.302333][ T336] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 336] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 336] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 336] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 336] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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 [pid 337] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 304] <... clone resumed>, child_tidptr=0x555555c675d0) = 337 [pid 337] <... prctl resumed>) = 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, "78", 2) = 2 [ 26.310273][ T336] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 26.318316][ T336] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 26.374154][ T337] FAULT_INJECTION: forcing a failure. [ 26.374154][ T337] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 26.387514][ T337] CPU: 0 PID: 337 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 26.397643][ T337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 26.407668][ T337] Call Trace: [ 26.410944][ T337] dump_stack+0x18e/0x1d5 [ 26.415243][ T337] should_fail+0x604/0x770 [ 26.419643][ T337] __alloc_pages_nodemask+0x12a/0x6f0 [ 26.424992][ T337] __get_free_pages+0xa/0x30 [ 26.429547][ T337] selinux_genfs_get_sid+0x55/0x250 [ 26.434712][ T337] inode_doinit_with_dentry+0x8ca/0xf30 [ 26.440230][ T337] security_d_instantiate+0xa5/0x100 [ 26.445487][ T337] d_instantiate+0x51/0x90 [ 26.449875][ T337] __debugfs_create_file+0x256/0x400 [ 26.455125][ T337] bdi_register_va+0x274/0x5e0 [ 26.459880][ T337] bdi_register+0x80/0xa0 [ 26.464199][ T337] ? __device_add_disk+0x50a/0x1210 [ 26.469374][ T337] bdi_register_owner+0x56/0xf0 [ 26.474229][ T337] __device_add_disk+0x583/0x1210 [ 26.479244][ T337] loop_add+0x554/0x710 [ 26.483373][ T337] loop_control_ioctl+0x465/0x600 [ 26.488383][ T337] ? loop_remove+0xa0/0xa0 [ 26.492767][ T337] do_vfs_ioctl+0x6d1/0x15b0 [ 26.497331][ T337] __x64_sys_ioctl+0xd4/0x110 [ 26.501974][ T337] do_syscall_64+0xcb/0x1c0 [ 26.506463][ T337] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 26.512323][ T337] RIP: 0033:0x7f5a9ffd70c9 [ 26.516720][ T337] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 26.536295][ T337] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 26.544686][ T337] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 26.552724][ T337] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 26.560663][ T337] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 337] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 337] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 337] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 26.568608][ T337] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 26.576551][ T337] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 337] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 338 ./strace-static-x86_64: Process 338 attached [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, "78", 2) = 2 [ 26.642463][ T338] FAULT_INJECTION: forcing a failure. [ 26.642463][ T338] name failslab, interval 1, probability 0, space 0, times 0 [ 26.655141][ T338] CPU: 1 PID: 338 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 26.665267][ T338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 26.675292][ T338] Call Trace: [ 26.678559][ T338] dump_stack+0x18e/0x1d5 [ 26.682860][ T338] should_fail+0x604/0x770 [ 26.687312][ T338] ? bdi_register_va+0x46d/0x5e0 [ 26.692226][ T338] ? kobj_map+0x74/0x650 [ 26.696457][ T338] should_failslab+0x5/0x20 [ 26.700942][ T338] __kmalloc+0x51/0x2b0 [ 26.705077][ T338] kobj_map+0x74/0x650 [ 26.709318][ T338] ? disk_check_events+0x560/0x560 [ 26.714505][ T338] ? kobject_get+0x8d/0xb0 [ 26.718894][ T338] ? exact_match+0x10/0x10 [ 26.723279][ T338] __device_add_disk+0x5fc/0x1210 [ 26.728274][ T338] loop_add+0x554/0x710 [ 26.732405][ T338] loop_control_ioctl+0x465/0x600 [ 26.737408][ T338] ? loop_remove+0xa0/0xa0 [ 26.741795][ T338] do_vfs_ioctl+0x6d1/0x15b0 [ 26.746387][ T338] __x64_sys_ioctl+0xd4/0x110 [ 26.751030][ T338] do_syscall_64+0xcb/0x1c0 [ 26.755501][ T338] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 26.761364][ T338] RIP: 0033:0x7f5a9ffd70c9 [ 26.765756][ T338] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [pid 338] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 338] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 338] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 26.785434][ T338] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 26.793810][ T338] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 26.801849][ T338] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 26.809789][ T338] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [ 26.817743][ T338] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 26.825688][ T338] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 338] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=2} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 339 ./strace-static-x86_64: Process 339 attached [pid 339] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 339] setpgid(0, 0) = 0 [pid 339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 339] write(3, "1000", 4) = 4 [pid 339] close(3) = 0 [pid 339] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 339] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 339] write(4, "78", 2) = 2 [ 26.894564][ T339] FAULT_INJECTION: forcing a failure. [ 26.894564][ T339] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 26.908077][ T339] CPU: 1 PID: 339 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 26.918296][ T339] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 26.928479][ T339] Call Trace: [ 26.931753][ T339] dump_stack+0x18e/0x1d5 [ 26.936058][ T339] should_fail+0x604/0x770 [ 26.940448][ T339] __alloc_pages_nodemask+0x12a/0x6f0 [ 26.945798][ T339] __get_free_pages+0xa/0x30 [ 26.950374][ T339] selinux_genfs_get_sid+0x55/0x250 [ 26.955552][ T339] inode_doinit_with_dentry+0x8ca/0xf30 [ 26.961069][ T339] security_d_instantiate+0xa5/0x100 [ 26.966327][ T339] d_instantiate+0x51/0x90 [ 26.970713][ T339] __debugfs_create_file+0x256/0x400 [ 26.975978][ T339] bdi_register_va+0x274/0x5e0 [ 26.980716][ T339] bdi_register+0x80/0xa0 [ 26.985021][ T339] ? __device_add_disk+0x50a/0x1210 [ 26.990190][ T339] bdi_register_owner+0x56/0xf0 [ 26.995013][ T339] __device_add_disk+0x583/0x1210 [ 27.000012][ T339] loop_add+0x554/0x710 [ 27.004138][ T339] loop_control_ioctl+0x465/0x600 [ 27.009132][ T339] ? loop_remove+0xa0/0xa0 [ 27.013536][ T339] do_vfs_ioctl+0x6d1/0x15b0 [ 27.018107][ T339] __x64_sys_ioctl+0xd4/0x110 [ 27.022767][ T339] do_syscall_64+0xcb/0x1c0 [ 27.027245][ T339] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 27.033348][ T339] RIP: 0033:0x7f5a9ffd70c9 [ 27.037775][ T339] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 27.057388][ T339] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 27.065857][ T339] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 27.073798][ T339] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 27.081743][ T339] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 339] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 339] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 339] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 339] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [pid 339] exit_group(0) = ? [pid 339] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=339, 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=0x555555c675d0) = 340 ./strace-static-x86_64: Process 340 attached [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, "78", 2) = 2 [ 27.089684][ T339] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 27.097636][ T339] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 27.154804][ T340] FAULT_INJECTION: forcing a failure. [ 27.154804][ T340] name fail_page_alloc, interval 1, probability 0, space 0, times 0 [ 27.168297][ T340] CPU: 0 PID: 340 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 27.178426][ T340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 27.188462][ T340] Call Trace: [ 27.191854][ T340] dump_stack+0x18e/0x1d5 [ 27.196160][ T340] should_fail+0x604/0x770 [ 27.200557][ T340] __alloc_pages_nodemask+0x12a/0x6f0 [ 27.205905][ T340] __get_free_pages+0xa/0x30 [ 27.210470][ T340] selinux_genfs_get_sid+0x55/0x250 [ 27.215634][ T340] inode_doinit_with_dentry+0x8ca/0xf30 [ 27.221164][ T340] security_d_instantiate+0xa5/0x100 [ 27.226421][ T340] d_instantiate+0x51/0x90 [ 27.230819][ T340] __debugfs_create_file+0x256/0x400 [ 27.236071][ T340] bdi_register_va+0x274/0x5e0 [ 27.240800][ T340] bdi_register+0x80/0xa0 [ 27.245096][ T340] ? __device_add_disk+0x50a/0x1210 [ 27.250260][ T340] bdi_register_owner+0x56/0xf0 [ 27.255077][ T340] __device_add_disk+0x583/0x1210 [ 27.260072][ T340] loop_add+0x554/0x710 [ 27.264299][ T340] loop_control_ioctl+0x465/0x600 [ 27.269288][ T340] ? loop_remove+0xa0/0xa0 [ 27.273669][ T340] do_vfs_ioctl+0x6d1/0x15b0 [ 27.278239][ T340] __x64_sys_ioctl+0xd4/0x110 [ 27.282882][ T340] do_syscall_64+0xcb/0x1c0 [ 27.287450][ T340] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 27.293309][ T340] RIP: 0033:0x7f5a9ffd70c9 [ 27.297704][ T340] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 27.317274][ T340] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 27.325659][ T340] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 27.333611][ T340] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 27.341550][ T340] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [pid 340] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 340] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 340] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 340] ioctl(5, LOOP_CTL_REMOVE, 12) = -1 EBUSY (Device or resource busy) [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=0x555555c675d0) = 341 ./strace-static-x86_64: Process 341 attached [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, "78", 2) = 2 [pid 341] ioctl(3, LOOP_CTL_ADD, 12) = -1 EEXIST (File exists) [pid 341] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 341] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [pid 341] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 342 ./strace-static-x86_64: Process 342 attached [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, "78", 2) = 2 [ 27.349490][ T340] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 27.357429][ T340] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 27.413269][ T342] FAULT_INJECTION: forcing a failure. [ 27.413269][ T342] name failslab, interval 1, probability 0, space 0, times 0 [ 27.425918][ T342] CPU: 1 PID: 342 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 27.436041][ T342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 27.446075][ T342] Call Trace: [ 27.449343][ T342] dump_stack+0x18e/0x1d5 [ 27.453648][ T342] should_fail+0x604/0x770 [ 27.458059][ T342] ? bdi_register_va+0x46d/0x5e0 [ 27.462982][ T342] ? kobj_map+0x74/0x650 [ 27.467195][ T342] should_failslab+0x5/0x20 [ 27.471668][ T342] __kmalloc+0x51/0x2b0 [ 27.475794][ T342] kobj_map+0x74/0x650 [ 27.479829][ T342] ? disk_check_events+0x560/0x560 [ 27.484909][ T342] ? kobject_get+0x8d/0xb0 [ 27.489320][ T342] ? exact_match+0x10/0x10 [ 27.493713][ T342] __device_add_disk+0x5fc/0x1210 [ 27.498707][ T342] loop_add+0x554/0x710 [ 27.502834][ T342] loop_control_ioctl+0x465/0x600 [ 27.507838][ T342] ? loop_remove+0xa0/0xa0 [ 27.512224][ T342] do_vfs_ioctl+0x6d1/0x15b0 [ 27.516785][ T342] __x64_sys_ioctl+0xd4/0x110 [ 27.521433][ T342] do_syscall_64+0xcb/0x1c0 [ 27.525904][ T342] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 27.531760][ T342] RIP: 0033:0x7f5a9ffd70c9 [ 27.536146][ T342] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 27.555731][ T342] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [pid 342] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 342] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 342] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 27.564110][ T342] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 27.572052][ T342] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 27.579994][ T342] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [ 27.587945][ T342] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 27.595883][ T342] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 342] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=2} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 343 ./strace-static-x86_64: Process 343 attached [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, "78", 2) = 2 [ 27.652690][ T343] FAULT_INJECTION: forcing a failure. [ 27.652690][ T343] name failslab, interval 1, probability 0, space 0, times 0 [ 27.665442][ T343] CPU: 0 PID: 343 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 27.675561][ T343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 27.685600][ T343] Call Trace: [ 27.688866][ T343] dump_stack+0x18e/0x1d5 [ 27.693165][ T343] should_fail+0x604/0x770 [ 27.697546][ T343] ? bdi_register_va+0x46d/0x5e0 [ 27.702451][ T343] ? kobj_map+0x74/0x650 [ 27.706668][ T343] should_failslab+0x5/0x20 [ 27.711144][ T343] __kmalloc+0x51/0x2b0 [ 27.715280][ T343] kobj_map+0x74/0x650 [ 27.719350][ T343] ? disk_check_events+0x560/0x560 [ 27.724462][ T343] ? kobject_get+0x8d/0xb0 [ 27.728861][ T343] ? exact_match+0x10/0x10 [ 27.733274][ T343] __device_add_disk+0x5fc/0x1210 [ 27.738286][ T343] loop_add+0x554/0x710 [ 27.742423][ T343] loop_control_ioctl+0x465/0x600 [ 27.747417][ T343] ? loop_remove+0xa0/0xa0 [ 27.751801][ T343] do_vfs_ioctl+0x6d1/0x15b0 [ 27.756361][ T343] __x64_sys_ioctl+0xd4/0x110 [ 27.761005][ T343] do_syscall_64+0xcb/0x1c0 [ 27.765476][ T343] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 27.771350][ T343] RIP: 0033:0x7f5a9ffd70c9 [ 27.775748][ T343] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [pid 343] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 343] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 343] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 27.795321][ T343] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 27.803714][ T343] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 27.811653][ T343] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 27.819594][ T343] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [ 27.827546][ T343] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 27.835485][ T343] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [pid 343] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [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=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c675d0) = 344 ./strace-static-x86_64: Process 344 attached [pid 344] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 344] setpgid(0, 0) = 0 [pid 344] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 344] write(3, "1000", 4) = 4 [pid 344] close(3) = 0 [pid 344] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 3 [pid 344] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 344] write(4, "78", 2) = 2 [pid 344] ioctl(3, LOOP_CTL_ADD, 12) = -1 EEXIST (File exists) [pid 344] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 344] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 27.845179][ T22] audit: type=1400 audit(1657420954.139:77): avc: denied { remove_name } for pid=137 comm="syslogd" name="messages" dev="tmpfs" ino=1013 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 27.867971][ T22] audit: type=1400 audit(1657420954.139:78): avc: denied { rename } for pid=137 comm="syslogd" name="messages" dev="tmpfs" ino=1013 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [pid 344] ioctl(5, LOOP_CTL_REMOVE, 12) = 12 [pid 344] exit_group(0) = ? [pid 344] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=344, 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=0x555555c675d0) = 345 ./strace-static-x86_64: Process 345 attached [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) = 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, "78", 2) = 2 [ 27.964120][ T345] FAULT_INJECTION: forcing a failure. [ 27.964120][ T345] name failslab, interval 1, probability 0, space 0, times 0 [ 27.976845][ T345] CPU: 1 PID: 345 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 27.986962][ T345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 27.996988][ T345] Call Trace: [ 28.000273][ T345] dump_stack+0x18e/0x1d5 [ 28.004591][ T345] should_fail+0x604/0x770 [ 28.008981][ T345] ? kobject_set_name_vargs+0x5d/0x110 [ 28.014585][ T345] should_failslab+0x5/0x20 [ 28.019062][ T345] __kmalloc_track_caller+0x4f/0x280 [ 28.024319][ T345] kstrdup_const+0x51/0x90 [ 28.028802][ T345] kobject_set_name_vargs+0x5d/0x110 [ 28.034055][ T345] dev_set_name+0x80/0xa0 [ 28.038354][ T345] ? kobj_map+0x61f/0x650 [ 28.042653][ T345] __device_add_disk+0x675/0x1210 [ 28.047646][ T345] loop_add+0x554/0x710 [ 28.051772][ T345] loop_control_ioctl+0x465/0x600 [ 28.056761][ T345] ? loop_remove+0xa0/0xa0 [ 28.061159][ T345] do_vfs_ioctl+0x6d1/0x15b0 [ 28.065717][ T345] __x64_sys_ioctl+0xd4/0x110 [ 28.070389][ T345] do_syscall_64+0xcb/0x1c0 [ 28.074881][ T345] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 28.080752][ T345] RIP: 0033:0x7f5a9ffd70c9 [ 28.085140][ T345] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 28.105249][ T345] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 28.113669][ T345] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 28.121626][ T345] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 28.129570][ T345] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [ 28.137512][ T345] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 28.145452][ T345] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 28.153695][ T345] kobject_add_internal failed for queue (error: -2 parent: (null)) [ 28.161757][ T345] ------------[ cut here ]------------ [ 28.167199][ T345] WARNING: CPU: 1 PID: 345 at fs/sysfs/file.c:328 sysfs_create_files+0x1a5/0x370 [ 28.176269][ T345] Modules linked in: [ 28.180140][ T345] CPU: 1 PID: 345 Comm: syz-executor217 Not tainted 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 28.190285][ T345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 28.200319][ T345] RIP: 0010:sysfs_create_files+0x1a5/0x370 [ 28.206092][ T345] Code: 89 ff 4c 89 ee 31 d2 41 89 e8 6a 00 e8 34 f9 ff ff 48 83 c4 08 41 89 c7 eb 18 66 66 2e 0f 1f 84 00 00 00 00 00 e8 6b 6b af ff <0f> 0b 41 bf ea ff ff ff 41 8d 6c 24 01 48 63 c5 48 8b 4c 24 08 48 [ 28.225664][ T345] RSP: 0018:ffff8881f55efc68 EFLAGS: 00010293 [ 28.231698][ T345] RAX: ffffffff81b0e259 RBX: ffff8881f36e50a0 RCX: ffff8881dc6e2f40 [ 28.239641][ T345] RDX: 0000000000000000 RSI: ffffffff85a449e0 RDI: ffff8881f36e5070 [ 28.247580][ T345] RBP: ffff8881f36e5070 R08: ffffffff82181ed4 R09: ffffed103eabdf8b [ 28.255526][ T345] R10: ffffed103eabdf8b R11: 1ffff1103eabdf8a R12: 0000000000000000 [ 28.263466][ T345] R13: ffffffff84bd5520 R14: dffffc0000000000 R15: ffff8881f36e5000 [ 28.271407][ T345] FS: 0000555555c67300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 28.280324][ T345] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.286874][ T345] CR2: 00007ffcb8aeb968 CR3: 00000001f1edf000 CR4: 00000000003406e0 [ 28.294816][ T345] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.302756][ T345] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.310695][ T345] Call Trace: [ 28.313963][ T345] __device_add_disk+0xd16/0x1210 [ 28.318970][ T345] loop_add+0x554/0x710 [ 28.323097][ T345] loop_control_ioctl+0x465/0x600 [ 28.328105][ T345] ? loop_remove+0xa0/0xa0 [ 28.332489][ T345] do_vfs_ioctl+0x6d1/0x15b0 [ 28.337047][ T345] __x64_sys_ioctl+0xd4/0x110 [ 28.341691][ T345] do_syscall_64+0xcb/0x1c0 [ 28.346172][ T345] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 28.352033][ T345] RIP: 0033:0x7f5a9ffd70c9 [ 28.356414][ T345] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 28.375994][ T345] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 28.384402][ T345] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 28.392343][ T345] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 28.400284][ T345] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [ 28.408222][ T345] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 28.416166][ T345] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 28.424107][ T345] ---[ end trace 4dd36d4c050ce020 ]--- [ 28.429612][ T345] ------------[ cut here ]------------ [ 28.435057][ T345] kernfs: can not remove 'events', no directory [ 28.441964][ T345] WARNING: CPU: 1 PID: 345 at fs/kernfs/dir.c:1504 kernfs_remove_by_name_ns+0x61/0x90 [ 28.451471][ T345] Modules linked in: [ 28.455352][ T345] CPU: 1 PID: 345 Comm: syz-executor217 Tainted: G W 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 28.466861][ T345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 28.476896][ T345] RIP: 0010:kernfs_remove_by_name_ns+0x61/0x90 [ 28.483018][ T345] Code: 48 89 c3 e8 c1 c6 af ff 48 89 df e8 69 f0 ff ff 31 db eb 29 e8 b0 c6 af ff 48 c7 c7 00 f8 a7 84 4c 89 fe 31 c0 e8 af f0 88 ff <0f> 0b bb fe ff ff ff eb 16 e8 91 c6 af ff bb fe ff ff ff 48 c7 c7 [ 28.502590][ T345] RSP: 0018:ffff8881f55efc48 EFLAGS: 00010246 [ 28.508624][ T345] RAX: 7ec1cfa8b402f400 RBX: 0000000000000000 RCX: ffff8881dc6e2f40 [ 28.516565][ T345] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 28.524503][ T345] RBP: ffffffff84bd5520 R08: ffffffff814a940a R09: ffffed103edeaa08 [ 28.532448][ T345] R10: ffffed103edeaa08 R11: 1ffff1103edeaa07 R12: ffffffff85a449e0 [ 28.540394][ T345] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff84bd55e0 [ 28.548366][ T345] FS: 0000555555c67300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 28.557274][ T345] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.563825][ T345] CR2: 00007ffcb8aeb968 CR3: 00000001f1edf000 CR4: 00000000003406e0 [ 28.571767][ T345] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.579708][ T345] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.587646][ T345] Call Trace: [ 28.590909][ T345] sysfs_create_files+0x31a/0x370 [ 28.595914][ T345] __device_add_disk+0xd16/0x1210 [ 28.600921][ T345] loop_add+0x554/0x710 [ 28.605056][ T345] loop_control_ioctl+0x465/0x600 [ 28.610057][ T345] ? loop_remove+0xa0/0xa0 [ 28.614441][ T345] do_vfs_ioctl+0x6d1/0x15b0 [ 28.619001][ T345] __x64_sys_ioctl+0xd4/0x110 [ 28.623648][ T345] do_syscall_64+0xcb/0x1c0 [ 28.628119][ T345] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 28.633980][ T345] RIP: 0033:0x7f5a9ffd70c9 [ 28.638363][ T345] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 28.657941][ T345] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 28.666929][ T345] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 28.674870][ T345] RDX: 000000000000000c RSI: 0000000000004c80 RDI: 0000000000000003 [ 28.682809][ T345] RBP: 00007ffcb8aeb9a0 R08: 0000000000000002 R09: 0000000000000001 [ 28.690778][ T345] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 28.698728][ T345] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 28.706940][ T345] ---[ end trace 4dd36d4c050ce021 ]--- [pid 345] ioctl(3, LOOP_CTL_ADD, 12) = 12 [pid 345] openat(AT_FDCWD, "/dev/loop-control", O_RDONLY) = 5 [pid 345] connect(-1, NULL, 0) = -1 EBADF (Bad file descriptor) [ 28.712431][ T345] loop12: failed to create sysfs files for events [ 28.720165][ T345] ------------[ cut here ]------------ [ 28.725651][ T345] kernfs: can not remove 'events', no directory [ 28.731960][ T345] WARNING: CPU: 1 PID: 345 at fs/kernfs/dir.c:1504 kernfs_remove_by_name_ns+0x61/0x90 [ 28.741486][ T345] Modules linked in: [ 28.745628][ T345] CPU: 1 PID: 345 Comm: syz-executor217 Tainted: G W 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 28.757129][ T345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 28.767178][ T345] RIP: 0010:kernfs_remove_by_name_ns+0x61/0x90 [ 28.773319][ T345] Code: 48 89 c3 e8 c1 c6 af ff 48 89 df e8 69 f0 ff ff 31 db eb 29 e8 b0 c6 af ff 48 c7 c7 00 f8 a7 84 4c 89 fe 31 c0 e8 af f0 88 ff <0f> 0b bb fe ff ff ff eb 16 e8 91 c6 af ff bb fe ff ff ff 48 c7 c7 [ 28.792896][ T345] RSP: 0018:ffff8881f55efcd0 EFLAGS: 00010246 [ 28.798955][ T345] RAX: 7ec1cfa8b402f400 RBX: 0000000000000000 RCX: ffff8881dc6e2f40 [ 28.806897][ T345] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 28.814839][ T345] RBP: ffffffff85a449e0 R08: ffffffff814a940a R09: ffffed103eabdf59 [ 28.822785][ T345] R10: ffffed103eabdf59 R11: 1ffff1103eabdf58 R12: 0000000000000000 [ 28.830745][ T345] R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff84bd55e0 [ 28.838709][ T345] FS: 0000555555c67300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 28.847616][ T345] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 28.854170][ T345] CR2: 00007ffcb8aeb968 CR3: 00000001f1edf000 CR4: 00000000003406e0 [ 28.862135][ T345] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 28.870079][ T345] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 28.878019][ T345] Call Trace: [ 28.881315][ T345] sysfs_remove_files+0x99/0xf0 [ 28.886146][ T345] del_gendisk+0x241/0xb60 [ 28.890555][ T345] loop_remove+0x42/0xa0 [ 28.894773][ T345] loop_control_ioctl+0x547/0x600 [ 28.899768][ T345] ? loop_remove+0xa0/0xa0 [ 28.904161][ T345] do_vfs_ioctl+0x6d1/0x15b0 [ 28.908736][ T345] __x64_sys_ioctl+0xd4/0x110 [ 28.913828][ T345] do_syscall_64+0xcb/0x1c0 [ 28.918319][ T345] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 28.924179][ T345] RIP: 0033:0x7f5a9ffd70c9 [ 28.928579][ T345] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 28.948158][ T345] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 28.956718][ T345] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 28.964754][ T345] RDX: 000000000000000c RSI: 0000000000004c81 RDI: 0000000000000005 [ 28.972703][ T345] RBP: 00007ffcb8aeb9a0 R08: 0000000000000001 R09: 0000000000000001 [ 28.980651][ T345] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004 [ 28.988615][ T345] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 28.996561][ T345] ---[ end trace 4dd36d4c050ce022 ]--- [ 29.002053][ T345] ------------[ cut here ]------------ [ 29.007509][ T345] kernfs: can not remove 'events_async', no directory [ 29.014303][ T345] WARNING: CPU: 1 PID: 345 at fs/kernfs/dir.c:1504 kernfs_remove_by_name_ns+0x61/0x90 [ 29.023810][ T345] Modules linked in: [ 29.027694][ T345] CPU: 1 PID: 345 Comm: syz-executor217 Tainted: G W 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 29.039209][ T345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 29.049253][ T345] RIP: 0010:kernfs_remove_by_name_ns+0x61/0x90 [ 29.055394][ T345] Code: 48 89 c3 e8 c1 c6 af ff 48 89 df e8 69 f0 ff ff 31 db eb 29 e8 b0 c6 af ff 48 c7 c7 00 f8 a7 84 4c 89 fe 31 c0 e8 af f0 88 ff <0f> 0b bb fe ff ff ff eb 16 e8 91 c6 af ff bb fe ff ff ff 48 c7 c7 [ 29.075760][ T345] RSP: 0018:ffff8881f55efcd0 EFLAGS: 00010246 [ 29.081795][ T345] RAX: 7ec1cfa8b402f400 RBX: 0000000000000000 RCX: ffff8881dc6e2f40 [ 29.089738][ T345] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 29.097687][ T345] RBP: ffffffff85a449e0 R08: ffffffff814a940a R09: ffffed103ede52b2 [ 29.105642][ T345] R10: ffffed103ede52b2 R11: 1ffff1103ede52b1 R12: 0000000000000000 [ 29.113587][ T345] R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff84bd5680 [ 29.121551][ T345] FS: 0000555555c67300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 29.130450][ T345] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.137002][ T345] CR2: 00007ffcb8aeb968 CR3: 00000001f1edf000 CR4: 00000000003406e0 [ 29.144947][ T345] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.152908][ T345] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.160863][ T345] Call Trace: [ 29.164145][ T345] sysfs_remove_files+0x99/0xf0 [ 29.168969][ T345] del_gendisk+0x241/0xb60 [ 29.173360][ T345] loop_remove+0x42/0xa0 [ 29.177577][ T345] loop_control_ioctl+0x547/0x600 [ 29.182657][ T345] ? loop_remove+0xa0/0xa0 [ 29.187066][ T345] do_vfs_ioctl+0x6d1/0x15b0 [ 29.191629][ T345] __x64_sys_ioctl+0xd4/0x110 [ 29.196276][ T345] do_syscall_64+0xcb/0x1c0 [ 29.200753][ T345] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 29.206614][ T345] RIP: 0033:0x7f5a9ffd70c9 [ 29.211000][ T345] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 29.230598][ T345] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 29.238978][ T345] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 29.246917][ T345] RDX: 000000000000000c RSI: 0000000000004c81 RDI: 0000000000000005 [ 29.254948][ T345] RBP: 00007ffcb8aeb9a0 R08: 0000000000000001 R09: 0000000000000001 [ 29.262890][ T345] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004 [ 29.270847][ T345] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 29.278792][ T345] ---[ end trace 4dd36d4c050ce023 ]--- [ 29.284265][ T345] ------------[ cut here ]------------ [ 29.289721][ T345] kernfs: can not remove 'events_poll_msecs', no directory [ 29.297082][ T345] WARNING: CPU: 1 PID: 345 at fs/kernfs/dir.c:1504 kernfs_remove_by_name_ns+0x61/0x90 [ 29.306773][ T345] Modules linked in: [ 29.310643][ T345] CPU: 1 PID: 345 Comm: syz-executor217 Tainted: G W 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 29.322235][ T345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 29.332359][ T345] RIP: 0010:kernfs_remove_by_name_ns+0x61/0x90 [ 29.338500][ T345] Code: 48 89 c3 e8 c1 c6 af ff 48 89 df e8 69 f0 ff ff 31 db eb 29 e8 b0 c6 af ff 48 c7 c7 00 f8 a7 84 4c 89 fe 31 c0 e8 af f0 88 ff <0f> 0b bb fe ff ff ff eb 16 e8 91 c6 af ff bb fe ff ff ff 48 c7 c7 [ 29.358079][ T345] RSP: 0018:ffff8881f55efcd0 EFLAGS: 00010246 [ 29.364123][ T345] RAX: 7ec1cfa8b402f400 RBX: 0000000000000000 RCX: ffff8881dc6e2f40 [ 29.372065][ T345] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 29.380006][ T345] RBP: ffffffff85a449e0 R08: ffffffff814a940a R09: ffffed103eabdf59 [ 29.387965][ T345] R10: ffffed103eabdf59 R11: 1ffff1103eabdf58 R12: 0000000000000000 [ 29.396022][ T345] R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff84bd56a0 [ 29.403963][ T345] FS: 0000555555c67300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 29.412864][ T345] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.419425][ T345] CR2: 00007ffcb8aeb968 CR3: 00000001f1edf000 CR4: 00000000003406e0 [ 29.427369][ T345] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.435310][ T345] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.443254][ T345] Call Trace: [ 29.446537][ T345] sysfs_remove_files+0x99/0xf0 [ 29.451362][ T345] del_gendisk+0x241/0xb60 [ 29.455754][ T345] loop_remove+0x42/0xa0 [ 29.459967][ T345] loop_control_ioctl+0x547/0x600 [ 29.464960][ T345] ? loop_remove+0xa0/0xa0 [ 29.469348][ T345] do_vfs_ioctl+0x6d1/0x15b0 [ 29.473908][ T345] __x64_sys_ioctl+0xd4/0x110 [ 29.478554][ T345] do_syscall_64+0xcb/0x1c0 [ 29.483043][ T345] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 29.488992][ T345] RIP: 0033:0x7f5a9ffd70c9 [ 29.493376][ T345] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 29.512951][ T345] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 29.521340][ T345] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 29.529296][ T345] RDX: 000000000000000c RSI: 0000000000004c81 RDI: 0000000000000005 [ 29.537247][ T345] RBP: 00007ffcb8aeb9a0 R08: 0000000000000001 R09: 0000000000000001 [ 29.545195][ T345] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004 [ 29.553153][ T345] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 29.561102][ T345] ---[ end trace 4dd36d4c050ce024 ]--- [ 29.566629][ T345] ------------[ cut here ]------------ [ 29.572063][ T345] kernfs: can not remove 'bdi', no directory [ 29.578100][ T345] WARNING: CPU: 1 PID: 345 at fs/kernfs/dir.c:1504 kernfs_remove_by_name_ns+0x61/0x90 [ 29.587621][ T345] Modules linked in: [ 29.591494][ T345] CPU: 1 PID: 345 Comm: syz-executor217 Tainted: G W 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 29.602996][ T345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 29.613030][ T345] RIP: 0010:kernfs_remove_by_name_ns+0x61/0x90 [ 29.619167][ T345] Code: 48 89 c3 e8 c1 c6 af ff 48 89 df e8 69 f0 ff ff 31 db eb 29 e8 b0 c6 af ff 48 c7 c7 00 f8 a7 84 4c 89 fe 31 c0 e8 af f0 88 ff <0f> 0b bb fe ff ff ff eb 16 e8 91 c6 af ff bb fe ff ff ff 48 c7 c7 [ 29.638829][ T345] RSP: 0018:ffff8881f55efd10 EFLAGS: 00010246 [ 29.644869][ T345] RAX: 7ec1cfa8b402f400 RBX: 0000000000000000 RCX: ffff8881dc6e2f40 [ 29.652822][ T345] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 29.660778][ T345] RBP: 0000000000000000 R08: ffffffff814a940a R09: ffffed103eabdf61 [ 29.668730][ T345] R10: ffffed103eabdf61 R11: 1ffff1103eabdf60 R12: 1ffff1103e6dca00 [ 29.676702][ T345] R13: ffff8881f36e54e8 R14: 0000000000000000 R15: ffffffff84bd5140 [ 29.684652][ T345] FS: 0000555555c67300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 29.693562][ T345] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.700113][ T345] CR2: 00007ffcb8aeb968 CR3: 00000001f1edf000 CR4: 00000000003406e0 [ 29.708083][ T345] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.716023][ T345] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.723966][ T345] Call Trace: [ 29.727254][ T345] del_gendisk+0x533/0xb60 [ 29.731640][ T345] loop_remove+0x42/0xa0 [ 29.735854][ T345] loop_control_ioctl+0x547/0x600 [ 29.740849][ T345] ? loop_remove+0xa0/0xa0 [ 29.745249][ T345] do_vfs_ioctl+0x6d1/0x15b0 [ 29.750394][ T345] __x64_sys_ioctl+0xd4/0x110 [ 29.755041][ T345] do_syscall_64+0xcb/0x1c0 [ 29.759515][ T345] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 29.765374][ T345] RIP: 0033:0x7f5a9ffd70c9 [ 29.769759][ T345] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 29.789335][ T345] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 29.797715][ T345] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 29.805666][ T345] RDX: 000000000000000c RSI: 0000000000004c81 RDI: 0000000000000005 [ 29.813679][ T345] RBP: 00007ffcb8aeb9a0 R08: 0000000000000001 R09: 0000000000000001 [ 29.821702][ T345] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004 [ 29.829735][ T345] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 29.837684][ T345] ---[ end trace 4dd36d4c050ce025 ]--- [ 29.843726][ T345] kasan: CONFIG_KASAN_INLINE enabled [ 29.849027][ T345] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.857131][ T345] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 29.864050][ T345] CPU: 1 PID: 345 Comm: syz-executor217 Tainted: G W 5.4.190-syzkaller-00003-g569d38047a0f #0 [ 29.875553][ T345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 29.885590][ T345] RIP: 0010:strlen+0x2a/0x60 [ 29.890156][ T345] Code: 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 66 90 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 [ 29.909817][ T345] RSP: 0018:ffff8881f55efc70 EFLAGS: 00010246 [ 29.915859][ T345] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8881dc6e2f40 [ 29.923806][ T345] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 29.931752][ T345] RBP: 0000000000000000 R08: ffffffff81b05b29 R09: ffffed103eabdf9b [ 29.939700][ T345] R10: ffffed103eabdf9b R11: 1ffff1103eabdf9a R12: ffffffffffffffff [ 29.947654][ T345] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 29.955604][ T345] FS: 0000555555c67300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 29.964506][ T345] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.971076][ T345] CR2: 00007ffcb8aeb968 CR3: 00000001f1edf000 CR4: 00000000003406e0 [ 29.979024][ T345] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.986975][ T345] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.994917][ T345] Call Trace: [ 29.998187][ T345] kernfs_name_hash+0x1e/0x220 [ 30.002926][ T345] kernfs_find_ns+0x6b/0x260 [ 30.007490][ T345] kernfs_remove_by_name_ns+0x32/0x90 [ 30.012837][ T345] del_gendisk+0x92d/0xb60 [ 30.017231][ T345] loop_remove+0x42/0xa0 [ 30.021443][ T345] loop_control_ioctl+0x547/0x600 [ 30.026448][ T345] ? loop_remove+0xa0/0xa0 [ 30.030860][ T345] do_vfs_ioctl+0x6d1/0x15b0 [ 30.035420][ T345] __x64_sys_ioctl+0xd4/0x110 [ 30.040243][ T345] do_syscall_64+0xcb/0x1c0 [ 30.044737][ T345] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 30.050609][ T345] RIP: 0033:0x7f5a9ffd70c9 [ 30.055004][ T345] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 30.074584][ T345] RSP: 002b:00007ffcb8aeb988 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 30.082970][ T345] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5a9ffd70c9 [ 30.090910][ T345] RDX: 000000000000000c RSI: 0000000000004c81 RDI: 0000000000000005 [ 30.099290][ T345] RBP: 00007ffcb8aeb9a0 R08: 0000000000000001 R09: 0000000000000001 [ 30.107250][ T345] R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000004 [ 30.115194][ T345] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 30.123136][ T345] Modules linked in: [ 30.127058][ T345] ---[ end trace 4dd36d4c050ce026 ]--- [ 30.132529][ T345] RIP: 0010:strlen+0x2a/0x60 [ 30.137177][ T345] Code: 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 66 90 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 [ 30.156779][ T345] RSP: 0018:ffff8881f55efc70 EFLAGS: 00010246 [ 30.162816][ T345] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8881dc6e2f40 [ 30.170802][ T345] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 30.178768][ T345] RBP: 0000000000000000 R08: ffffffff81b05b29 R09: ffffed103eabdf9b [ 30.186753][ T345] R10: ffffed103eabdf9b R11: 1ffff1103eabdf9a R12: ffffffffffffffff [ 30.194703][ T345] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 30.202688][ T345] FS: 0000555555c67300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 30.211609][ T345] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.218189][ T345] CR2: 00007ffcb8aeb968 CR3: 00000001f1edf000 CR4: 00000000003406e0 [ 30.226171][ T345] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.234143][ T345] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.242164][ T345] Kernel panic - not syncing: Fatal exception [ 30.248411][ T345] Kernel Offset: disabled [ 30.252714][ T345] Rebooting in 86400 seconds..