./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2199971382

<...>
Warning: Permanently added '10.128.10.31' (ECDSA) to the list of known hosts.
execve("./syz-executor2199971382", ["./syz-executor2199971382"], 0x7ffc3da032b0 /* 10 vars */) = 0
brk(NULL)                               = 0x555556093000
brk(0x555556093c40)                     = 0x555556093c40
arch_prctl(ARCH_SET_FS, 0x555556093300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
set_tid_address(0x5555560935d0)         = 3606
set_robust_list(0x5555560935e0, 24)     = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x7fbc016b85d0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7fbc016b8ca0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x7fbc016b8670, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fbc016b8ca0}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor2199971382", 4096) = 28
brk(0x5555560b4c40)                     = 0x5555560b4c40
brk(0x5555560b5000)                     = 0x5555560b5000
mprotect(0x7fbc0177a000, 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
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3607 attached
 <unfinished ...>
[pid  3607] set_robust_list(0x5555560935e0, 24 <unfinished ...>
[pid  3606] <... clone resumed>, child_tidptr=0x5555560935d0) = 3607
[pid  3607] <... set_robust_list resumed>) = 0
[pid  3607] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  3607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3607] setsid()                    = 1
[pid  3607] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  3607] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  3607] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  3607] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  3607] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  3607] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  3607] unshare(CLONE_NEWNS)        = 0
[pid  3607] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  3607] unshare(CLONE_NEWIPC)       = 0
[pid  3607] unshare(CLONE_NEWCGROUP)    = 0
[pid  3607] unshare(CLONE_NEWUTS)       = 0
[pid  3607] unshare(CLONE_SYSVSEM)      = 0
[pid  3607] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  3607] write(3, "16777216", 8)     = 8
[pid  3607] close(3)                    = 0
[pid  3607] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  3607] write(3, "536870912", 9)    = 9
[pid  3607] close(3)                    = 0
[pid  3607] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  3607] write(3, "1024", 4)         = 4
[pid  3607] close(3)                    = 0
[pid  3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  3607] write(3, "8192", 4)         = 4
[pid  3607] close(3)                    = 0
[pid  3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  3607] write(3, "1024", 4)         = 4
[pid  3607] close(3)                    = 0
[pid  3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  3607] write(3, "1024", 4)         = 4
[pid  3607] close(3)                    = 0
[pid  3607] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  3607] write(3, "1024 1048576 500 1024", 21) = 21
[pid  3607] close(3)                    = 0
[pid  3607] getpid()                    = 1
[pid  3607] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PTRACE|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_NICE|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid  3607] capset({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, permitted=1<<CAP_CHOWN|1<<CAP_DAC_OVERRIDE|1<<CAP_DAC_READ_SEARCH|1<<CAP_FOWNER|1<<CAP_FSETID|1<<CAP_KILL|1<<CAP_SETGID|1<<CAP_SETUID|1<<CAP_SETPCAP|1<<CAP_LINUX_IMMUTABLE|1<<CAP_NET_BIND_SERVICE|1<<CAP_NET_BROADCAST|1<<CAP_NET_ADMIN|1<<CAP_NET_RAW|1<<CAP_IPC_LOCK|1<<CAP_IPC_OWNER|1<<CAP_SYS_MODULE|1<<CAP_SYS_RAWIO|1<<CAP_SYS_CHROOT|1<<CAP_SYS_PACCT|1<<CAP_SYS_ADMIN|1<<CAP_SYS_BOOT|1<<CAP_SYS_RESOURCE|1<<CAP_SYS_TIME|1<<CAP_SYS_TTY_CONFIG|1<<CAP_MKNOD|1<<CAP_LEASE|1<<CAP_AUDIT_WRITE|1<<CAP_AUDIT_CONTROL|1<<CAP_SETFCAP|1<<CAP_MAC_OVERRIDE|1<<CAP_MAC_ADMIN|1<<CAP_SYSLOG|1<<CAP_WAKE_ALARM|1<<CAP_BLOCK_SUSPEND|1<<CAP_AUDIT_READ|1<<CAP_PERFMON|1<<CAP_BPF|1<<CAP_CHECKPOINT_RESTORE, inheritable=0}) = 0
[pid  3607] unshare(CLONE_NEWNET)       = 0
[pid  3607] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  3607] write(3, "0 65535", 7)      = 7
[pid  3607] close(3)                    = 0
[pid  3607] mkdir("/dev/binderfs", 0777) = 0
[pid  3607] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid  3607] symlink("/dev/binderfs", "./binderfs") = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555560935d0) = 2
./strace-static-x86_64: Process 3608 attached
[pid  3608] set_robust_list(0x5555560935e0, 24) = 0
[pid  3608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3608] setpgid(0, 0)               = 0
[pid  3608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3608] write(3, "1000", 4)         = 4
[pid  3608] close(3)                    = 0
[pid  3608] futex(0x7fbc017804cc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3608] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc01688000
[pid  3608] mprotect(0x7fbc01689000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3608] clone(child_stack=0x7fbc016a83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3609 attached
 <unfinished ...>
[pid  3609] set_robust_list(0x7fbc016a89e0, 24 <unfinished ...>
[pid  3608] <... clone resumed>, parent_tid=[3], tls=0x7fbc016a8700, child_tidptr=0x7fbc016a89d0) = 3
[pid  3609] <... set_robust_list resumed>) = 0
[pid  3608] futex(0x7fbc017804c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3609] socketpair(AF_UNIX, SOCK_STREAM, 0,  <unfinished ...>
[pid  3608] futex(0x7fbc017804cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3609] <... socketpair resumed>[3, 4]) = 0
[pid  3609] futex(0x7fbc017804cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3608] <... futex resumed>)        = 0
[pid  3608] futex(0x7fbc017804c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3609] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid  3608] <... futex resumed>)        = 0
[pid  3608] futex(0x7fbc017804cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3609] <... openat resumed>)       = 5
[pid  3609] futex(0x7fbc017804cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3608] <... futex resumed>)        = 0
[pid  3609] futex(0x7fbc017804c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3608] futex(0x7fbc017804c8, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3608] futex(0x7fbc017804cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3609] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3609] ioctl(5, NBD_SET_SOCK, 3)   = 0
[pid  3609] futex(0x7fbc017804cc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3608] <... futex resumed>)        = 0
[pid  3609] futex(0x7fbc017804c8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3608] futex(0x7fbc017804c8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3609] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  3608] <... futex resumed>)        = 0
[pid  3609] ioctl(5, NBD_DO_IT <unfinished ...>
[pid  3608] futex(0x7fbc017804cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  3608] futex(0x7fbc017804dc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3608] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc01667000
[pid  3608] mprotect(0x7fbc01668000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  3608] clone(child_stack=0x7fbc016873f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 3612 attached
 <unfinished ...>
[pid  3612] set_robust_list(0x7fbc016879e0, 24) = 0
[pid  3612] futex(0x7fbc017804d8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3608] <... clone resumed>, parent_tid=[4], tls=0x7fbc01687700, child_tidptr=0x7fbc016879d0) = 4
[pid  3608] futex(0x7fbc017804d8, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  3612] <... futex resumed>)        = 0
[pid  3608] <... futex resumed>)        = 1
[pid  3612] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY|0x4) = 6
[pid  3612] futex(0x7fbc017804dc, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  3612] futex(0x7fbc017804d8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3608] futex(0x7fbc017804dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable)
[pid  3608] futex(0x7fbc017804d8, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3612] <... futex resumed>)        = 0
[pid  3608] futex(0x7fbc017804dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  3612] ioctl(6, NBD_SET_SIZE_BLOCKS, 63) = 0
[pid  3612] futex(0x7fbc017804dc, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  3608] <... futex resumed>)        = 0
syzkaller login: [   62.185579][ T3612] nbd0: detected capacity change from 0 to 126
[pid  3612] futex(0x7fbc017804d8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  3608] close(3)                    = 0
[pid  3608] close(4)                    = 0
[pid  3608] close(5)                    = 0
[   62.334447][   T48] block nbd0: Receive control failed (result -104)
[pid  3608] close(6 <unfinished ...>
[pid  3607] kill(-2, SIGKILL)           = 0
[pid  3607] kill(2, SIGKILL <unfinished ...>
[pid  3612] <... futex resumed>)        = ?
[pid  3607] <... kill resumed>)         = 0
[pid  3612] +++ killed by SIGKILL +++
[pid  3607] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  3607] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
[pid  3607] getdents64(3, 0x555556094620 /* 2 entries */, 32768) = 48
[pid  3607] getdents64(3, 0x555556094620 /* 0 entries */, 32768) = 0
[pid  3607] close(3)                    = 0
[   75.763351][   T32] cfg80211: failed to load regulatory.db
[   92.402045][ T1011] block nbd0: Possible stuck request ffff88801e3b8000: control (read@0,4096B). Runtime 30 seconds
[  122.481999][ T1011] block nbd0: Possible stuck request ffff88801e3b8000: control (read@0,4096B). Runtime 60 seconds
[  122.782463][ T2973] udevd[2973]: worker [3611] /devices/virtual/block/nbd0 is taking a long time
[  152.562002][ T1011] block nbd0: Possible stuck request ffff88801e3b8000: control (read@0,4096B). Runtime 90 seconds
[  182.642048][ T1011] block nbd0: Possible stuck request ffff88801e3b8000: control (read@0,4096B). Runtime 120 seconds
[  212.721966][ T1011] block nbd0: Possible stuck request ffff88801e3b8000: control (read@0,4096B). Runtime 150 seconds
[  242.801926][ T1011] block nbd0: Possible stuck request ffff88801e3b8000: control (read@0,4096B). Runtime 180 seconds
[  242.935792][ T2973] udevd[2973]: worker [3611] /devices/virtual/block/nbd0 timeout; kill it
[  242.945131][ T2973] udevd[2973]: seq 7478 '/devices/virtual/block/nbd0' killed
[  272.881940][ T1011] block nbd0: Possible stuck request ffff88801e3b8000: control (read@0,4096B). Runtime 210 seconds
[  285.682053][   T27] INFO: task syz-executor219:3608 blocked for more than 143 seconds.
[  285.690525][   T27]       Not tainted 6.1.0-rc4-syzkaller-00011-g59f2f4b8a757 #0
[  285.698214][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  285.707123][   T27] task:syz-executor219 state:D stack:27424 pid:3608  ppid:3607   flags:0x00004006
[  285.716402][   T27] Call Trace:
[  285.719687][   T27]  <TASK>
[  285.722662][   T27]  __schedule+0xae9/0x53f0
[  285.727132][   T27]  ? io_schedule_timeout+0x140/0x140
[  285.732473][   T27]  schedule+0xda/0x1b0
[  285.736553][   T27]  schedule_preempt_disabled+0xf/0x20
[  285.741981][   T27]  __mutex_lock+0xa44/0x1350
[  285.746582][   T27]  ? blkdev_put+0xbc/0x770
[  285.750988][   T27]  ? mutex_lock_io_nested+0x1190/0x1190
[  285.756589][   T27]  ? locks_check_ctx_file_list+0x1d/0x110
[  285.762351][   T27]  ? do_raw_spin_unlock+0x171/0x230
[  285.767545][   T27]  ? _raw_spin_unlock+0x24/0x40
[  285.772434][   T27]  ? locks_remove_file+0x2f7/0x570
[  285.777560][   T27]  blkdev_put+0xbc/0x770
[  285.781850][   T27]  blkdev_close+0x64/0x80
[  285.786187][   T27]  __fput+0x27c/0xa90
[  285.790152][   T27]  ? blkdev_fsync+0xa0/0xa0
[  285.794693][   T27]  task_work_run+0x16b/0x270
[  285.799307][   T27]  ? task_work_cancel+0x30/0x30
[  285.804233][   T27]  ptrace_notify+0x114/0x140
[  285.808839][   T27]  syscall_exit_to_user_mode_prepare+0x129/0x280
[  285.815215][   T27]  syscall_exit_to_user_mode+0x9/0x50
[  285.820604][   T27]  do_syscall_64+0x42/0xb0
[  285.825116][   T27]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  285.831047][   T27] RIP: 0033:0x7fbc016b7bbb
[  285.835555][   T27] RSP: 002b:00007ffcc064fd90 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[  285.844033][   T27] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007fbc016b7bbb
[  285.852060][   T27] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000006
[  285.860221][   T27] RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000064
[  285.868272][   T27] R10: 0000000000000000 R11: 0000000000000293 R12: 000000000000f2ce
[  285.876286][   T27] R13: 00007fbc017804dc R14: 00007ffcc064fdf0 R15: 00007fbc017804c0
[  285.884339][   T27]  </TASK>
[  285.887391][   T27] INFO: task syz-executor219:3609 blocked for more than 143 seconds.
[  285.895519][   T27]       Not tainted 6.1.0-rc4-syzkaller-00011-g59f2f4b8a757 #0
[  285.903106][   T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  285.911755][   T27] task:syz-executor219 state:D stack:27424 pid:3609  ppid:3607   flags:0x00004006
[  285.921019][   T27] Call Trace:
[  285.924378][   T27]  <TASK>
[  285.927317][   T27]  __schedule+0xae9/0x53f0
[  285.931734][   T27]  ? io_schedule_timeout+0x140/0x140
[  285.937097][   T27]  schedule+0xda/0x1b0
[  285.941189][   T27]  schedule_preempt_disabled+0xf/0x20
[  285.946803][   T27]  __mutex_lock+0xa44/0x1350
[  285.951419][   T27]  ? blkdev_put+0xbc/0x770
[  285.956070][   T27]  ? mutex_lock_io_nested+0x1190/0x1190
[  285.961666][   T27]  ? locks_check_ctx_file_list+0x1d/0x110
[  285.967496][   T27]  ? do_raw_spin_unlock+0x171/0x230
[  285.972755][   T27]  ? _raw_spin_unlock+0x24/0x40
[  285.977604][   T27]  ? locks_remove_file+0x2f7/0x570
[  285.982772][   T27]  blkdev_put+0xbc/0x770
[  285.987036][   T27]  blkdev_close+0x64/0x80
[  285.991358][   T27]  __fput+0x27c/0xa90
[  285.995386][   T27]  ? blkdev_fsync+0xa0/0xa0
[  285.999907][   T27]  task_work_run+0x16b/0x270
[  286.004566][   T27]  ? task_work_cancel+0x30/0x30
[  286.009441][   T27]  ? blkdev_ioctl+0x189/0x800
[  286.014167][   T27]  ? blkdev_common_ioctl+0x1a30/0x1a30
[  286.019736][   T27]  ptrace_notify+0x114/0x140
[  286.024376][   T27]  syscall_exit_to_user_mode_prepare+0x129/0x280
[  286.030732][   T27]  syscall_exit_to_user_mode+0x9/0x50
[  286.036171][   T27]  do_syscall_64+0x42/0xb0
[  286.040614][   T27]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  286.046596][   T27] RIP: 0033:0x7fbc016fb589
[  286.051026][   T27] RSP: 002b:00007fbc016a8308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  286.059496][   T27] RAX: 0000000000000000 RBX: 00007fbc017804c8 RCX: 00007fbc016fb589
[  286.067526][   T27] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000005
[  286.075554][   T27] RBP: 00007fbc017804c0 R08: 0000000000000000 R09: 0000000000000000
[  286.083693][   T27] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbc017804cc
[  286.091680][   T27] R13: 00007fbc0174d1a4 R14: 64626e2f7665642f R15: 0000000000022000
[  286.099736][   T27]  </TASK>
[  286.102835][   T27] 
[  286.102835][   T27] Showing all locks held in the system:
[  286.110552][   T27] 1 lock held by rcu_tasks_kthre/12:
[  286.115882][   T27]  #0: ffffffff8bf87f70 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70
[  286.126403][   T27] 1 lock held by rcu_tasks_trace/13:
[  286.131670][   T27]  #0: ffffffff8bf87c70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70
[  286.142698][   T27] 1 lock held by khungtaskd/27:
[  286.147554][   T27]  #0: ffffffff8bf88ac0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[  286.157693][   T27] 2 locks held by getty/3288:
[  286.162510][   T27]  #0: ffff88814aba1098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80
[  286.172315][   T27]  #1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0
[  286.182487][   T27] 1 lock held by syz-executor219/3608:
[  286.187928][   T27]  #0: ffff88801e28f4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xbc/0x770
[  286.197394][   T27] 1 lock held by syz-executor219/3609:
[  286.202888][   T27]  #0: ffff88801e28f4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xbc/0x770
[  286.212248][   T27] 1 lock held by udevd/3611:
[  286.217019][   T27]  #0: ffff88801e28f4c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb90
[  286.227662][   T27] 
[  286.230004][   T27] =============================================
[  286.230004][   T27] 
[  286.238503][   T27] NMI backtrace for cpu 0
[  286.242841][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.1.0-rc4-syzkaller-00011-g59f2f4b8a757 #0
[  286.252639][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[  286.262684][   T27] Call Trace:
[  286.265952][   T27]  <TASK>
[  286.268873][   T27]  dump_stack_lvl+0xcd/0x134
[  286.273465][   T27]  nmi_cpu_backtrace.cold+0x24/0x18a
[  286.278751][   T27]  nmi_trigger_cpumask_backtrace+0x32f/0x3c0
[  286.284733][   T27]  ? lapic_can_unplug_cpu+0x80/0x80
[  286.289933][   T27]  watchdog+0xc71/0xfc0
[  286.294095][   T27]  ? proc_dohung_task_timeout_secs+0x80/0x80
[  286.300168][   T27]  kthread+0x2e4/0x3a0
[  286.304236][   T27]  ? kthread_complete_and_exit+0x40/0x40
[  286.309872][   T27]  ret_from_fork+0x1f/0x30
[  286.314308][   T27]  </TASK>
[  286.317505][   T27] Sending NMI from CPU 0 to CPUs 1:
[  286.322785][    C1] NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x1fd/0x2a0
[  286.323768][   T27] Kernel panic - not syncing: hung_task: blocked tasks
[  286.339251][   T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.1.0-rc4-syzkaller-00011-g59f2f4b8a757 #0
[  286.349048][   T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[  286.359107][   T27] Call Trace:
[  286.362376][   T27]  <TASK>
[  286.365296][   T27]  dump_stack_lvl+0xcd/0x134
[  286.369880][   T27]  panic+0x2c8/0x622
[  286.373766][   T27]  ? panic_print_sys_info.part.0+0x110/0x110
[  286.379737][   T27]  ? nmi_cpu_backtrace.cold+0xab/0x18a
[  286.385188][   T27]  ? irq_work_claim+0x76/0x90
[  286.389855][   T27]  ? irq_work_queue+0x29/0x80
[  286.394538][   T27]  ? watchdog.cold+0x130/0x158
[  286.399314][   T27]  watchdog.cold+0x141/0x158
[  286.403900][   T27]  ? proc_dohung_task_timeout_secs+0x80/0x80
[  286.409873][   T27]  kthread+0x2e4/0x3a0
[  286.413951][   T27]  ? kthread_complete_and_exit+0x40/0x40
[  286.419588][   T27]  ret_from_fork+0x1f/0x30
[  286.423998][   T27]  </TASK>
[  286.427805][   T27] Kernel Offset: disabled
[  286.432132][   T27] Rebooting in 86400 seconds..