./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4054179951

<...>
Warning: Permanently added '10.128.1.139' (ED25519) to the list of known hosts.
execve("./syz-executor4054179951", ["./syz-executor4054179951"], 0x7ffda0011340 /* 10 vars */) = 0
brk(NULL)                               = 0x55557c0b5000
brk(0x55557c0b5d40)                     = 0x55557c0b5d40
arch_prctl(ARCH_SET_FS, 0x55557c0b53c0) = 0
set_tid_address(0x55557c0b5690)         = 5096
set_robust_list(0x55557c0b56a0, 24)     = 0
rseq(0x55557c0b5ce0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor4054179951", 4096) = 28
getrandom("\xa1\x4a\x9f\xdd\x16\x19\x57\xef", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55557c0b5d40
brk(0x55557c0d6d40)                     = 0x55557c0d6d40
brk(0x55557c0d7000)                     = 0x55557c0d7000
mprotect(0x7f2188004000, 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, child_tidptr=0x55557c0b5690) = 5097
./strace-static-x86_64: Process 5097 attached
[pid  5097] set_robust_list(0x55557c0b56a0, 24) = 0
[pid  5097] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  5097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5097] setsid()                    = 1
[pid  5097] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  5097] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  5097] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  5097] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  5097] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  5097] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  5097] unshare(CLONE_NEWNS)        = 0
[pid  5097] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  5097] unshare(CLONE_NEWIPC)       = 0
[pid  5097] unshare(CLONE_NEWCGROUP)    = 0
[pid  5097] unshare(CLONE_NEWUTS)       = 0
[pid  5097] unshare(CLONE_SYSVSEM)      = 0
[pid  5097] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5097] write(3, "16777216", 8)     = 8
[pid  5097] close(3)                    = 0
[pid  5097] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  5097] write(3, "536870912", 9)    = 9
[pid  5097] close(3)                    = 0
[pid  5097] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5097] write(3, "1024", 4)         = 4
[pid  5097] close(3)                    = 0
[pid  5097] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5097] write(3, "8192", 4)         = 4
[pid  5097] close(3)                    = 0
[pid  5097] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5097] write(3, "1024", 4)         = 4
[pid  5097] close(3)                    = 0
[pid  5097] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  5097] write(3, "1024", 4)         = 4
[pid  5097] close(3)                    = 0
[pid  5097] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  5097] write(3, "1024 1048576 500 1024", 21) = 21
[pid  5097] close(3)                    = 0
[pid  5097] getpid()                    = 1
[pid  5097] 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  5097] 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  5097] unshare(CLONE_NEWNET)       = 0
[pid  5097] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  5097] write(3, "0 65535", 7)      = 7
[pid  5097] close(3)                    = 0
[pid  5097] mkdir("/dev/binderfs", 0777) = 0
[pid  5097] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid  5097] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5097] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557c0b5690) = 2
./strace-static-x86_64: Process 5100 attached
[pid  5100] set_robust_list(0x55557c0b56a0, 24) = 0
[pid  5100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5100] setpgid(0, 0)               = 0
[pid  5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5100] write(3, "1000", 4)         = 4
[pid  5100] close(3)                    = 0
[pid  5100] write(1, "executing program\n", 18executing program
) = 18
[pid  5100] futex(0x7f218800a32c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5100] rt_sigaction(SIGRT_1, {sa_handler=0x7f2187fa9450, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f2187f9aad0}, NULL, 8) = 0
[pid  5100] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5100] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f2187f1b000
[pid  5100] mprotect(0x7f2187f1c000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5100] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5100] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f2187f3b990, parent_tid=0x7f2187f3b990, exit_signal=0, stack=0x7f2187f1b000, stack_size=0x20300, tls=0x7f2187f3b6c0}./strace-static-x86_64: Process 5101 attached
 => {parent_tid=[3]}, 88) = 3
[pid  5100] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5101] rseq(0x7f2187f3bfe0, 0x20, 0, 0x53053053) = 0
[pid  5100] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5101] set_robust_list(0x7f2187f3b9a0, 24 <unfinished ...>
[pid  5100] futex(0x7f218800a328, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5101] <... set_robust_list resumed>) = 0
[pid  5101] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5100] <... futex resumed>)        = 0
[pid  5101] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5100] futex(0x7f218800a32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5101] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3
[pid  5101] futex(0x7f218800a32c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5101] futex(0x7f218800a328, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5100] <... futex resumed>)        = 0
[pid  5100] futex(0x7f218800a328, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5101] <... futex resumed>)        = 0
[pid  5100] <... futex resumed>)        = 1
[pid  5101] socketpair(AF_UNIX, SOCK_STREAM, 0,  <unfinished ...>
[pid  5100] futex(0x7f218800a32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5101] <... socketpair resumed>[4, 5]) = 0
[pid  5101] futex(0x7f218800a32c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5100] <... futex resumed>)        = 0
[pid  5101] futex(0x7f218800a328, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable)
[pid  5100] futex(0x7f218800a328, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5101] ioctl(3, NBD_SET_SOCK, 4 <unfinished ...>
[pid  5100] <... futex resumed>)        = 0
[pid  5100] futex(0x7f218800a32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5101] <... ioctl resumed>)        = 0
[pid  5101] futex(0x7f218800a32c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5100] <... futex resumed>)        = 0
[pid  5100] futex(0x7f218800a328, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5101] ioctl(3, NBD_DO_IT <unfinished ...>
[pid  5100] <... futex resumed>)        = 0
[pid  5100] futex(0x7f218800a32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[pid  5100] futex(0x7f218800a33c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5100] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f2187efa000
[pid  5100] mprotect(0x7f2187efb000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5100] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5100] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f2187f1a990, parent_tid=0x7f2187f1a990, exit_signal=0, stack=0x7f2187efa000, stack_size=0x20300, tls=0x7f2187f1a6c0}./strace-static-x86_64: Process 5102 attached
 <unfinished ...>
[pid  5102] rseq(0x7f2187f1afe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5100] <... clone3 resumed> => {parent_tid=[4]}, 88) = 4
[pid  5102] <... rseq resumed>)         = 0
[pid  5100] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5102] set_robust_list(0x7f2187f1a9a0, 24 <unfinished ...>
[pid  5100] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5102] <... set_robust_list resumed>) = 0
[pid  5100] futex(0x7f218800a338, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5102] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5100] <... futex resumed>)        = 0
[pid  5102] ioctl(3, NBD_SET_SIZE, 2147483647 <unfinished ...>
[pid  5100] futex(0x7f218800a33c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5102] <... ioctl resumed>)        = 0
[pid  5102] futex(0x7f218800a33c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5100] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  5102] <... futex resumed>)        = 0
[   76.673380][ T5102] nbd0: detected capacity change from 0 to 4194303
[pid  5102] futex(0x7f218800a338, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5100] close(3)                    = 0
[pid  5100] close(4)                    = 0
[pid  5100] close(5)                    = 0
[pid  5100] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5100] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5100] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5100] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5100] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(18)                   = -1 EBADF (Bad file descriptor)
[   76.847226][ T4485] block nbd0: Receive control failed (result -104)
[pid  5100] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5100] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5100] exit_group(0 <unfinished ...>
[pid  5102] <... futex resumed>)        = ?
[pid  5102] +++ exited with 0 +++
[pid  5100] <... exit_group resumed>)   = ?
[pid  5097] kill(-2, SIGKILL)           = 0
[pid  5097] kill(2, SIGKILL)            = 0
[pid  5097] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5097] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0
[pid  5097] getdents64(3, 0x55557c0b6730 /* 2 entries */, 32768) = 48
[pid  5097] getdents64(3, 0x55557c0b6730 /* 0 entries */, 32768) = 0
[pid  5097] close(3)                    = 0
[   91.976858][    T9] cfg80211: failed to load regulatory.db
[  106.694392][   T57] block nbd0: Possible stuck request ffff8880202a0000: control (read@0,4096B). Runtime 30 seconds
[  136.773434][ T1136] block nbd0: Possible stuck request ffff8880202a0000: control (read@0,4096B). Runtime 60 seconds
[  138.995417][ T4541] udevd[4541]: worker [5098] /devices/virtual/block/nbd0 is taking a long time
[  166.853345][ T1136] block nbd0: Possible stuck request ffff8880202a0000: control (read@0,4096B). Runtime 90 seconds
[  196.933440][ T1136] block nbd0: Possible stuck request ffff8880202a0000: control (read@0,4096B). Runtime 120 seconds
[  227.013331][   T57] block nbd0: Possible stuck request ffff8880202a0000: control (read@0,4096B). Runtime 150 seconds
[  257.093526][ T1136] block nbd0: Possible stuck request ffff8880202a0000: control (read@0,4096B). Runtime 180 seconds
[  259.179959][ T4541] udevd[4541]: worker [5098] /devices/virtual/block/nbd0 timeout; kill it
[  259.188774][ T4541] udevd[4541]: seq 7638 '/devices/virtual/block/nbd0' killed
[  286.533114][   T30] INFO: task syz-executor405:5101 blocked for more than 143 seconds.
[  286.541381][   T30]       Not tainted 6.10.0-rc1-syzkaller-00317-ga693b9c95abd #0
[  286.549145][   T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  286.557900][   T30] task:syz-executor405 state:D stack:26048 pid:5101  tgid:5100  ppid:5097   flags:0x00004006
[  286.568214][   T30] Call Trace:
[  286.571505][   T30]  <TASK>
[  286.574522][   T30]  __schedule+0x17e8/0x4a20
[  286.579104][   T30]  ? srso_alias_return_thunk+0x5/0xfbef5
[  286.584808][   T30]  ? __pfx___schedule+0x10/0x10
[  286.589694][   T30]  ? __pfx_lock_release+0x10/0x10
[  286.594806][   T30]  ? __mutex_trylock_common+0x92/0x2e0
[  286.600308][   T30]  ? schedule+0x90/0x320
[  286.604638][   T30]  schedule+0x14b/0x320
[  286.608824][   T30]  schedule_preempt_disabled+0x13/0x30
[  286.614366][   T30]  __mutex_lock+0x6a4/0xd70
[  286.618909][   T30]  ? __mutex_lock+0x527/0xd70
[  286.623654][   T30]  ? bdev_release+0x184/0x700
[  286.628374][   T30]  ? __pfx___mutex_lock+0x10/0x10
[  286.633509][   T30]  ? srso_alias_return_thunk+0x5/0xfbef5
[  286.639176][   T30]  ? __fsnotify_parent+0x20c/0x5e0
[  286.644371][   T30]  bdev_release+0x184/0x700
[  286.648910][   T30]  blkdev_release+0x15/0x20
[  286.653542][   T30]  ? __pfx_blkdev_release+0x10/0x10
[  286.658765][   T30]  __fput+0x408/0x8b0
[  286.662759][   T30]  task_work_run+0x251/0x310
[  286.667444][   T30]  ? __pfx_task_work_run+0x10/0x10
[  286.672599][   T30]  ptrace_notify+0x2d2/0x380
[  286.677304][   T30]  ? __pfx_ptrace_notify+0x10/0x10
[  286.682456][   T30]  ? __pfx_task_work_add+0x10/0x10
[  286.687656][   T30]  ? blkdev_ioctl+0x582/0x6b0
[  286.692394][   T30]  ? __pfx_blkdev_ioctl+0x10/0x10
[  286.697546][   T30]  syscall_exit_work+0xc6/0x190
[  286.702448][   T30]  syscall_exit_to_user_mode+0x273/0x370
[  286.708175][   T30]  do_syscall_64+0x100/0x230
[  286.712799][   T30]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  286.718800][   T30] RIP: 0033:0x7f2187f834b9
[  286.723272][   T30] RSP: 002b:00007f2187f3b228 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  286.731722][   T30] RAX: 0000000000000000 RBX: 00007f218800a328 RCX: 00007f2187f834b9
[  286.739818][   T30] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
[  286.747855][   T30] RBP: 00007f218800a320 R08: 00007f2187f3b6c0 R09: 00007f2187f3b6c0
[  286.755930][   T30] R10: 00007f2187f3b6c0 R11: 0000000000000246 R12: 00007f218800a32c
[  286.763961][   T30] R13: 00007f2187fd71a4 R14: 64626e2f7665642f R15: 00007ffce2611518
[  286.771948][   T30]  </TASK>
[  286.775073][   T30] 
[  286.775073][   T30] Showing all locks held in the system:
[  286.782798][   T30] 1 lock held by khungtaskd/30:
[  286.787714][   T30]  #0: ffffffff8e333f60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0
[  286.797994][   T30] 2 locks held by getty/4848:
[  286.802679][   T30]  #0: ffff88802ab9b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[  286.812549][   T30]  #1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10
[  286.822882][   T30] 1 lock held by udevd/5098:
[  286.827494][   T30]  #0: ffff8880201854c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open+0xe5/0xc60
[  286.836926][   T30] 1 lock held by syz-executor405/5101:
[  286.842394][   T30]  #0: ffff8880201854c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x184/0x700
[  286.852111][   T30] 
[  286.854519][   T30] =============================================
[  286.854519][   T30] 
[  286.862976][   T30] NMI backtrace for cpu 0
[  286.867330][   T30] CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc1-syzkaller-00317-ga693b9c95abd #0
[  286.877280][   T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
[  286.887332][   T30] Call Trace:
[  286.890604][   T30]  <TASK>
[  286.893525][   T30]  dump_stack_lvl+0x241/0x360
[  286.898212][   T30]  ? __pfx_dump_stack_lvl+0x10/0x10
[  286.903408][   T30]  ? __pfx__printk+0x10/0x10
[  286.907995][   T30]  ? vprintk_emit+0x631/0x770
[  286.912678][   T30]  ? __pfx_vprintk_emit+0x10/0x10
[  286.917708][   T30]  nmi_cpu_backtrace+0x49c/0x4d0
[  286.922662][   T30]  ? __pfx_nmi_cpu_backtrace+0x10/0x10
[  286.928118][   T30]  ? _printk+0xd5/0x120
[  286.932266][   T30]  ? __pfx__printk+0x10/0x10
[  286.936847][   T30]  ? __wake_up_klogd+0xcc/0x110
[  286.941699][   T30]  ? __pfx__printk+0x10/0x10
[  286.946309][   T30]  ? srso_alias_return_thunk+0x5/0xfbef5
[  286.951969][   T30]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  286.957949][   T30]  nmi_trigger_cpumask_backtrace+0x198/0x320
[  286.963937][   T30]  watchdog+0xfde/0x1020
[  286.968180][   T30]  ? watchdog+0x1ea/0x1020
[  286.972599][   T30]  ? __pfx_watchdog+0x10/0x10
[  286.977269][   T30]  kthread+0x2f2/0x390
[  286.981340][   T30]  ? __pfx_watchdog+0x10/0x10
[  286.986011][   T30]  ? __pfx_kthread+0x10/0x10
[  286.990607][   T30]  ret_from_fork+0x4d/0x80
[  286.995025][   T30]  ? __pfx_kthread+0x10/0x10
[  286.999612][   T30]  ret_from_fork_asm+0x1a/0x30
[  287.004391][   T30]  </TASK>
[  287.007598][   T30] Sending NMI from CPU 0 to CPUs 1:
[  287.012913][    C1] NMI backtrace for cpu 1
[  287.012926][    C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.10.0-rc1-syzkaller-00317-ga693b9c95abd #0
[  287.012948][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
[  287.012961][    C1] RIP: 0010:__schedule+0x97a/0x4a20
[  287.012999][    C1] Code: 04 00 0f 84 cf 10 00 00 48 8b 44 24 18 48 8d 98 f8 15 00 00 48 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30 <84> c0 0f 85 06 12 00 00 80 4b 03 40 48 8b 44 24 10 4c 8d b8 60 0a
[  287.013017][    C1] RSP: 0018:ffffc900001a7bc0 EFLAGS: 00000012
[  287.013037][    C1] RAX: 0000000000000000 RBX: ffff8880176a95f8 RCX: ffffffff8b8f4818
[  287.013053][    C1] RDX: 0000000000000000 RSI: ffffffff8c1ff220 RDI: ffffffff8c1ff1e0
[  287.013068][    C1] RBP: ffffc900001a7da8 R08: ffffffff8fad456f R09: 1ffffffff1f5a8ad
[  287.013085][    C1] R10: dffffc0000000000 R11: fffffbfff1f5a8ae R12: ffffc900001a7cc0
[  287.013102][    C1] R13: 0000000000000000 R14: dffffc0000000000 R15: ffff88802b89bc00
[  287.013121][    C1] FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
[  287.013139][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  287.013155][    C1] CR2: 000055d34226d680 CR3: 000000007e110000 CR4: 0000000000350ef0
[  287.013172][    C1] Call Trace:
[  287.013181][    C1]  <NMI>
[  287.013190][    C1]  ? nmi_cpu_backtrace+0x3c2/0x4d0
[  287.013225][    C1]  ? __pfx_lock_acquire+0x10/0x10
[  287.013253][    C1]  ? __pfx_nmi_cpu_backtrace+0x10/0x10
[  287.013283][    C1]  ? nmi_handle+0x2a/0x5a0
[  287.013335][    C1]  ? nmi_cpu_backtrace_handler+0xc/0x20
[  287.013364][    C1]  ? nmi_handle+0x151/0x5a0
[  287.013397][    C1]  ? nmi_handle+0x2a/0x5a0
[  287.013437][    C1]  ? __schedule+0x97a/0x4a20
[  287.013466][    C1]  ? default_do_nmi+0x63/0x160
[  287.013502][    C1]  ? exc_nmi+0x123/0x1f0
[  287.013532][    C1]  ? end_repeat_nmi+0xf/0x53
[  287.013568][    C1]  ? __schedule+0x938/0x4a20
[  287.013599][    C1]  ? __schedule+0x97a/0x4a20
[  287.013628][    C1]  ? __schedule+0x97a/0x4a20
[  287.013659][    C1]  ? __schedule+0x97a/0x4a20
[  287.013688][    C1]  </NMI>
[  287.013695][    C1]  <TASK>
[  287.013710][    C1]  ? srso_alias_return_thunk+0x5/0xfbef5
[  287.013742][    C1]  ? srso_alias_return_thunk+0x5/0xfbef5
[  287.013775][    C1]  ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[  287.013800][    C1]  ? __pfx___schedule+0x10/0x10
[  287.013831][    C1]  ? tick_nohz_idle_exit+0x36e/0x480
[  287.013871][    C1]  ? srso_alias_return_thunk+0x5/0xfbef5
[  287.013903][    C1]  ? flush_smp_call_function_queue+0x142/0x2a0
[  287.013941][    C1]  ? __pfx_tick_nohz_idle_exit+0x10/0x10
[  287.013978][    C1]  ? srso_alias_return_thunk+0x5/0xfbef5
[  287.014010][    C1]  schedule_idle+0x53/0x90
[  287.014042][    C1]  do_idle+0x56a/0x5d0
[  287.014068][    C1]  ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[  287.014098][    C1]  ? __pfx_do_idle+0x10/0x10
[  287.014122][    C1]  ? srso_alias_return_thunk+0x5/0xfbef5
[  287.014150][    C1]  ? _raw_spin_unlock_irqrestore+0xdd/0x140
[  287.014189][    C1]  ? srso_alias_return_thunk+0x5/0xfbef5
[  287.014218][    C1]  ? complete+0xb4/0x1c0
[  287.014258][    C1]  cpu_startup_entry+0x42/0x60
[  287.014283][    C1]  start_secondary+0x100/0x100
[  287.014311][    C1]  common_startup_64+0x13e/0x147
[  287.014347][    C1]  </TASK>
[  287.014356][    C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.443 msecs
[  287.014970][   T30] Kernel panic - not syncing: hung_task: blocked tasks
[  287.340094][   T30] CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc1-syzkaller-00317-ga693b9c95abd #0
[  287.349993][   T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
[  287.360051][   T30] Call Trace:
[  287.363335][   T30]  <TASK>
[  287.366266][   T30]  dump_stack_lvl+0x241/0x360
[  287.370959][   T30]  ? __pfx_dump_stack_lvl+0x10/0x10
[  287.376166][   T30]  ? __pfx__printk+0x10/0x10
[  287.380773][   T30]  ? srso_alias_return_thunk+0x5/0xfbef5
[  287.386421][   T30]  ? vscnprintf+0x5d/0x90
[  287.390767][   T30]  panic+0x349/0x860
[  287.394669][   T30]  ? srso_alias_return_thunk+0x5/0xfbef5
[  287.400319][   T30]  ? nmi_trigger_cpumask_backtrace+0x244/0x320
[  287.406489][   T30]  ? __pfx_panic+0x10/0x10
[  287.410911][   T30]  ? srso_alias_return_thunk+0x5/0xfbef5
[  287.416563][   T30]  ? srso_alias_return_thunk+0x5/0xfbef5
[  287.422208][   T30]  ? preempt_schedule_thunk+0x1a/0x30
[  287.427590][   T30]  ? nmi_trigger_cpumask_backtrace+0x244/0x320
[  287.433762][   T30]  ? nmi_trigger_cpumask_backtrace+0x2d4/0x320
[  287.439930][   T30]  ? srso_alias_return_thunk+0x5/0xfbef5
[  287.445576][   T30]  ? nmi_trigger_cpumask_backtrace+0x2d9/0x320
[  287.451751][   T30]  watchdog+0x101d/0x1020
[  287.456096][   T30]  ? watchdog+0x1ea/0x1020
[  287.460528][   T30]  ? __pfx_watchdog+0x10/0x10
[  287.465215][   T30]  kthread+0x2f2/0x390
[  287.469299][   T30]  ? __pfx_watchdog+0x10/0x10
[  287.473986][   T30]  ? __pfx_kthread+0x10/0x10
[  287.478587][   T30]  ret_from_fork+0x4d/0x80
[  287.483024][   T30]  ? __pfx_kthread+0x10/0x10
[  287.487632][   T30]  ret_from_fork_asm+0x1a/0x30
[  287.492432][   T30]  </TASK>
[  287.495956][   T30] Kernel Offset: disabled
[  287.500319][   T30] Rebooting in 86400 seconds..