./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor5191993

<...>
Warning: Permanently added '10.128.0.141' (ED25519) to the list of known hosts.
execve("./syz-executor5191993", ["./syz-executor5191993"], 0x7ffc5d783090 /* 10 vars */) = 0
brk(NULL)                               = 0x55558556b000
brk(0x55558556bd40)                     = 0x55558556bd40
arch_prctl(ARCH_SET_FS, 0x55558556b3c0) = 0
set_tid_address(0x55558556b690)         = 5840
set_robust_list(0x55558556b6a0, 24)     = 0
rseq(0x55558556bce0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor5191993", 4096) = 25
getrandom("\xc3\x53\xac\x34\x33\xee\x55\x3a", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55558556bd40
brk(0x55558558cd40)                     = 0x55558558cd40
brk(0x55558558d000)                     = 0x55558558d000
mprotect(0x7fc1afb90000, 16384, PROT_READ) = 0
mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000
mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000
mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558556b690) = 5841
./strace-static-x86_64: Process 5841 attached
[pid  5841] set_robust_list(0x55558556b6a0, 24) = 0
[pid  5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5841] getppid()                   = 0
[pid  5841] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  5841] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  5841] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  5841] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  5841] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  5841] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  5841] unshare(CLONE_NEWNS)        = 0
[pid  5841] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  5841] unshare(CLONE_NEWIPC)       = 0
[pid  5841] unshare(CLONE_NEWCGROUP)    = 0
[pid  5841] unshare(CLONE_NEWUTS)       = 0
[pid  5841] unshare(CLONE_SYSVSEM)      = 0
[pid  5841] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5841] write(3, "16777216", 8)     = 8
[pid  5841] close(3)                    = 0
[pid  5841] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  5841] write(3, "536870912", 9)    = 9
[pid  5841] close(3)                    = 0
[pid  5841] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5841] write(3, "1024", 4)         = 4
[pid  5841] close(3)                    = 0
[pid  5841] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5841] write(3, "8192", 4)         = 4
[pid  5841] close(3)                    = 0
[pid  5841] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5841] write(3, "1024", 4)         = 4
[pid  5841] close(3)                    = 0
[pid  5841] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  5841] write(3, "1024", 4)         = 4
[pid  5841] close(3)                    = 0
[pid  5841] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  5841] write(3, "1024 1048576 500 1024", 21) = 21
[pid  5841] close(3)                    = 0
[pid  5841] getpid()                    = 1
[pid  5841] 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  5841] 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  5841] unshare(CLONE_NEWNET)       = 0
[pid  5841] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  5841] write(3, "0 65535", 7)      = 7
[pid  5841] close(3)                    = 0
[pid  5841] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid  5841] write(3, "100000", 6)       = 6
[pid  5841] close(3)                    = 0
[pid  5841] mkdir("./syz-tmp", 0777)    = 0
[pid  5841] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid  5841] mkdir("./syz-tmp/newroot", 0777) = 0
[pid  5841] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid  5841] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5841] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid  5841] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid  5841] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid  5841] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5841] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5841] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid  5841] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5841] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5841] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5841] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5841] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid  5841] mount("/syz-inputs", "./syz-tmp/newroot/syz-inputs", NULL, MS_RDONLY|MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5841] mkdir("./syz-tmp/pivot", 0777) = 0
[pid  5841] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid  5841] chdir("/")                  = 0
[pid  5841] umount2("./pivot", MNT_DETACH) = 0
[pid  5841] chroot("./newroot")         = 0
[pid  5841] chdir("/")                  = 0
[pid  5841] mkdir("/dev/gadgetfs", 0777) = 0
[pid  5841] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = 0
[pid  5841] mkdir("/dev/binderfs", 0777) = 0
[pid  5841] mount("binder", "/dev/binderfs", "binder", 0, NULL) = -1 ENODEV (No such device)
[pid  5841] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5841] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  5841] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5845 attached
, child_tidptr=0x55558556b690) = 2
[pid  5845] set_robust_list(0x55558556b6a0, 24) = 0
[pid  5845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5845] setpgid(0, 0)               = 0
[pid  5845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5845] write(3, "1000", 4)         = 4
[pid  5845] close(3)                    = 0
executing program
[pid  5845] write(1, "executing program\n", 18) = 18
[pid  5845] futex(0x7fc1afb9632c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5845] rt_sigaction(SIGRT_1, {sa_handler=0x7fc1afb34800, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fc1afb25e80}, NULL, 8) = 0
[pid  5845] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5845] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1afaa6000
[pid  5845] mprotect(0x7fc1afaa7000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5845] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5845] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fc1afac6990, parent_tid=0x7fc1afac6990, exit_signal=0, stack=0x7fc1afaa6000, stack_size=0x20300, tls=0x7fc1afac66c0}./strace-static-x86_64: Process 5846 attached
 <unfinished ...>
[pid  5846] rseq(0x7fc1afac6fe0, 0x20, 0, 0x53053053) = 0
[pid  5845] <... clone3 resumed> => {parent_tid=[3]}, 88) = 3
[pid  5846] set_robust_list(0x7fc1afac69a0, 24 <unfinished ...>
[pid  5845] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5846] <... set_robust_list resumed>) = 0
[pid  5846] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
[pid  5846] futex(0x7fc1afb96328, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5845] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5845] futex(0x7fc1afb96328, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5846] <... futex resumed>)        = 0
[pid  5845] <... futex resumed>)        = 1
[pid  5846] socketpair(AF_UNIX, SOCK_STREAM, 0,  <unfinished ...>
[pid  5845] futex(0x7fc1afb9632c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5846] <... socketpair resumed>[3, 4]) = 0
[pid  5846] futex(0x7fc1afb9632c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5845] <... futex resumed>)        = 0
[pid  5845] futex(0x7fc1afb96328, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5846] <... futex resumed>)        = 1
[pid  5845] <... futex resumed>)        = 0
[pid  5846] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid  5845] futex(0x7fc1afb9632c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5846] <... openat resumed>)       = 5
[pid  5846] futex(0x7fc1afb9632c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5845] <... futex resumed>)        = 0
[pid  5846] futex(0x7fc1afb96328, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5845] futex(0x7fc1afb96328, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5846] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5845] <... futex resumed>)        = 0
[pid  5846] ioctl(5, NBD_SET_SOCK, 3 <unfinished ...>
[pid  5845] futex(0x7fc1afb9632c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5846] <... ioctl resumed>)        = 0
[pid  5846] futex(0x7fc1afb9632c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5845] <... futex resumed>)        = 0
[pid  5846] futex(0x7fc1afb96328, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5845] futex(0x7fc1afb96328, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5845] futex(0x7fc1afb9632c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5846] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5846] ioctl(5, NBD_DO_IT <unfinished ...>
[pid  5845] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  5845] futex(0x7fc1afb9633c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5845] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1afa85000
[pid  5845] mprotect(0x7fc1afa86000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5845] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5845] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fc1afaa5990, parent_tid=0x7fc1afaa5990, exit_signal=0, stack=0x7fc1afa85000, stack_size=0x20300, tls=0x7fc1afaa56c0}./strace-static-x86_64: Process 5847 attached
 => {parent_tid=[4]}, 88) = 4
[pid  5847] rseq(0x7fc1afaa5fe0, 0x20, 0, 0x53053053 <unfinished ...>
[pid  5845] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5847] <... rseq resumed>)         = 0
[pid  5845] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5847] set_robust_list(0x7fc1afaa59a0, 24 <unfinished ...>
[pid  5845] futex(0x7fc1afb96338, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5847] <... set_robust_list resumed>) = 0
[pid  5847] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5845] <... futex resumed>)        = 0
[pid  5847] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5845] futex(0x7fc1afb9633c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5847] ioctl(5, NBD_SET_SIZE_BLOCKS, 63) = 0
[pid  5845] <... futex resumed>)        = -1 ETIMEDOUT (Connection timed out)
[pid  5847] futex(0x7fc1afb9633c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[  170.056138][ T5847] nbd0: detected capacity change from 0 to 126
[pid  5847] futex(0x7fc1afb96338, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5845] close(3)                    = 0
[pid  5845] close(4)                    = 0
[pid  5845] close(5 <unfinished ...>
[pid  5846] <... ioctl resumed>)        = 0
[pid  5846] futex(0x7fc1afb9632c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[  170.243379][   T54] block nbd0: Receive control failed (result -104)
[pid  5846] futex(0x7fc1afb96328, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5841] kill(-2, SIGKILL <unfinished ...>
[pid  5847] <... futex resumed>)        = ?
[pid  5846] <... futex resumed>)        = ?
[pid  5847] +++ killed by SIGKILL +++
[pid  5841] <... kill resumed>)         = 0
[pid  5846] +++ killed by SIGKILL +++
[pid  5841] kill(2, SIGKILL)            = 0
[pid  5841] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5841] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0
[pid  5841] getdents64(3, 0x55558556c730 /* 2 entries */, 32768) = 48
[pid  5841] getdents64(3, 0x55558556c730 /* 0 entries */, 32768) = 0
[pid  5841] close(3)                    = 0
[  200.377704][   T58] block nbd0: Possible stuck request ffff888025a57000: control (read@0,4096B). Runtime 30 seconds
[  230.140280][ T5198] udevd[5198]: worker [5842] /devices/virtual/block/nbd0 is taking a long time
[  230.456425][   T58] block nbd0: Possible stuck request ffff888025a57000: control (read@0,4096B). Runtime 60 seconds
[  260.536472][   T58] block nbd0: Possible stuck request ffff888025a57000: control (read@0,4096B). Runtime 90 seconds
[  290.616834][   T39] block nbd0: Possible stuck request ffff888025a57000: control (read@0,4096B). Runtime 120 seconds
[  320.696231][   T39] block nbd0: Possible stuck request ffff888025a57000: control (read@0,4096B). Runtime 150 seconds
[  350.304559][ T5198] udevd[5198]: worker [5842] /devices/virtual/block/nbd0 timeout; kill it
[  350.313331][ T5198] udevd[5198]: seq 8744 '/devices/virtual/block/nbd0' killed
[  350.776231][   T39] block nbd0: Possible stuck request ffff888025a57000: control (read@0,4096B). Runtime 180 seconds
[  380.856243][   T39] block nbd0: Possible stuck request ffff888025a57000: control (read@0,4096B). Runtime 210 seconds
[  410.936905][   T58] block nbd0: Possible stuck request ffff888025a57000: control (read@0,4096B). Runtime 240 seconds
[  430.136229][   T30] INFO: task syz-executor519:5845 blocked for more than 143 seconds.
[  430.144472][   T30]       Not tainted 6.14.0-rc1-syzkaller-00034-g92514ef226f5 #0
[  430.152446][   T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  430.161228][   T30] task:syz-executor519 state:D stack:25912 pid:5845  tgid:5845  ppid:5841   task_flags:0x400040 flags:0x00004006
[  430.173306][   T30] Call Trace:
[  430.176636][   T30]  <TASK>
[  430.179574][   T30]  __schedule+0x18bc/0x4c40
[  430.184124][   T30]  ? __pfx___schedule+0x10/0x10
[  430.189088][   T30]  ? __pfx_lock_release+0x10/0x10
[  430.194150][   T30]  ? _raw_spin_unlock_irqrestore+0x8f/0x140
[  430.200228][   T30]  ? _raw_spin_unlock_irqrestore+0xdd/0x140
[  430.206239][   T30]  ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[  430.212613][   T30]  ? schedule+0x90/0x320
[  430.217066][   T30]  schedule+0x14b/0x320
[  430.221265][   T30]  schedule_preempt_disabled+0x13/0x30
[  430.226815][   T30]  __mutex_lock+0x817/0x1010
[  430.231448][   T30]  ? mark_lock+0x9a/0x360
[  430.235800][   T30]  ? __mutex_lock+0x602/0x1010
[  430.240699][   T30]  ? bdev_release+0x17e/0x700
[  430.245437][   T30]  ? __pfx___mutex_lock+0x10/0x10
[  430.250570][   T30]  ? __asan_memset+0x23/0x50
[  430.255209][   T30]  bdev_release+0x17e/0x700
[  430.259824][   T30]  blkdev_release+0x15/0x20
[  430.264364][   T30]  ? __pfx_blkdev_release+0x10/0x10
[  430.269655][   T30]  __fput+0x3e9/0x9f0
[  430.273678][   T30]  __x64_sys_close+0x7f/0x110
[  430.278428][   T30]  do_syscall_64+0xf3/0x230
[  430.282970][   T30]  ? clear_bhb_loop+0x35/0x90
[  430.287737][   T30]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  430.293661][   T30] RIP: 0033:0x7fc1afb0da9a
[  430.298140][   T30] RSP: 002b:00007fff50a56d50 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
[  430.306651][   T30] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fc1afb0da9a
[  430.314631][   T30] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
[  430.322692][   T30] RBP: 0000000000000005 R08: 0000000000000000 R09: 00007fff50a56da0
[  430.330783][   T30] R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000297fe
[  430.338831][   T30] R13: 0000000000029830 R14: 00007fc1afb9633c R15: 00007fc1afb96320
[  430.346901][   T30]  </TASK>
[  430.349975][   T30] 
[  430.349975][   T30] Showing all locks held in the system:
[  430.357775][   T30] 1 lock held by khungtaskd/30:
[  430.362644][   T30]  #0: ffffffff8e9387e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0
[  430.372647][   T30] 2 locks held by getty/5578:
[  430.377524][   T30]  #0: ffff8880353c80a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[  430.387412][   T30]  #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00
[  430.397613][   T30] 1 lock held by udevd/5842:
[  430.402201][   T30]  #0: ffff888144bf94c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xf0/0xc50
[  430.411525][   T30] 1 lock held by syz-executor519/5845:
[  430.417042][   T30]  #0: ffff888144bf94c8 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x17e/0x700
[  430.426710][   T30] 
[  430.429074][   T30] =============================================
[  430.429074][   T30] 
[  430.437563][   T30] NMI backtrace for cpu 1
[  430.437584][   T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.14.0-rc1-syzkaller-00034-g92514ef226f5 #0
[  430.437606][   T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[  430.437618][   T30] Call Trace:
[  430.437624][   T30]  <TASK>
[  430.437641][   T30]  dump_stack_lvl+0x241/0x360
[  430.437680][   T30]  ? __pfx_dump_stack_lvl+0x10/0x10
[  430.437712][   T30]  ? __pfx__printk+0x10/0x10
[  430.437752][   T30]  nmi_cpu_backtrace+0x49c/0x4d0
[  430.437779][   T30]  ? __pfx_nmi_cpu_backtrace+0x10/0x10
[  430.437799][   T30]  ? _printk+0xd5/0x120
[  430.437827][   T30]  ? __pfx__printk+0x10/0x10
[  430.437855][   T30]  ? __wake_up_klogd+0xcc/0x110
[  430.437879][   T30]  ? __pfx__printk+0x10/0x10
[  430.437910][   T30]  ? __rcu_read_unlock+0xa1/0x110
[  430.437936][   T30]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  430.437961][   T30]  nmi_trigger_cpumask_backtrace+0x198/0x320
[  430.437988][   T30]  watchdog+0x1058/0x10a0
[  430.438016][   T30]  ? watchdog+0x1ea/0x10a0
[  430.438046][   T30]  ? __pfx_watchdog+0x10/0x10
[  430.438070][   T30]  kthread+0x7a9/0x920
[  430.438096][   T30]  ? __pfx_kthread+0x10/0x10
[  430.438124][   T30]  ? __pfx_watchdog+0x10/0x10
[  430.438150][   T30]  ? __pfx_kthread+0x10/0x10
[  430.438175][   T30]  ? __pfx_kthread+0x10/0x10
[  430.438204][   T30]  ? __pfx_kthread+0x10/0x10
[  430.438230][   T30]  ? _raw_spin_unlock_irq+0x23/0x50
[  430.438253][   T30]  ? lockdep_hardirqs_on+0x99/0x150
[  430.438278][   T30]  ? __pfx_kthread+0x10/0x10
[  430.438305][   T30]  ret_from_fork+0x4b/0x80
[  430.438329][   T30]  ? __pfx_kthread+0x10/0x10
[  430.438356][   T30]  ret_from_fork_asm+0x1a/0x30
[  430.438403][   T30]  </TASK>
[  430.438411][   T30] Sending NMI from CPU 1 to CPUs 0:
[  430.607803][    C0] NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt+0x21/0x30
[  430.608795][   T30] Kernel panic - not syncing: hung_task: blocked tasks
[  430.608813][   T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.14.0-rc1-syzkaller-00034-g92514ef226f5 #0
[  430.608838][   T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
[  430.608853][   T30] Call Trace:
[  430.608862][   T30]  <TASK>
[  430.608872][   T30]  dump_stack_lvl+0x241/0x360
[  430.608911][   T30]  ? __pfx_vprintk_emit+0x10/0x10
[  430.608946][   T30]  ? __pfx_dump_stack_lvl+0x10/0x10
[  430.608981][   T30]  ? __pfx__printk+0x10/0x10
[  430.609011][   T30]  ? lockdep_hardirqs_on_prepare+0x43d/0x780
[  430.609048][   T30]  ? vscnprintf+0x5d/0x90
[  430.609074][   T30]  panic+0x349/0x880
[  430.609107][   T30]  ? nmi_trigger_cpumask_backtrace+0x244/0x320
[  430.609134][   T30]  ? __pfx_panic+0x10/0x10
[  430.609171][   T30]  ? preempt_schedule_thunk+0x1a/0x30
[  430.609200][   T30]  ? nmi_trigger_cpumask_backtrace+0x244/0x320
[  430.609224][   T30]  ? nmi_trigger_cpumask_backtrace+0x2d4/0x320
[  430.609252][   T30]  ? nmi_trigger_cpumask_backtrace+0x2d9/0x320
[  430.609281][   T30]  watchdog+0x1097/0x10a0
[  430.609310][   T30]  ? watchdog+0x1ea/0x10a0
[  430.609342][   T30]  ? __pfx_watchdog+0x10/0x10
[  430.609370][   T30]  kthread+0x7a9/0x920
[  430.609398][   T30]  ? __pfx_kthread+0x10/0x10
[  430.609442][   T30]  ? __pfx_watchdog+0x10/0x10
[  430.609470][   T30]  ? __pfx_kthread+0x10/0x10
[  430.609497][   T30]  ? __pfx_kthread+0x10/0x10
[  430.609529][   T30]  ? __pfx_kthread+0x10/0x10
[  430.609556][   T30]  ? _raw_spin_unlock_irq+0x23/0x50
[  430.609581][   T30]  ? lockdep_hardirqs_on+0x99/0x150
[  430.609608][   T30]  ? __pfx_kthread+0x10/0x10
[  430.609638][   T30]  ret_from_fork+0x4b/0x80
[  430.609664][   T30]  ? __pfx_kthread+0x10/0x10
[  430.609694][   T30]  ret_from_fork_asm+0x1a/0x30
[  430.609732][   T30]  </TASK>
[  430.790436][   T30] Kernel Offset: disabled
[  430.794782][   T30] Rebooting in 86400 seconds..