./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1145137372

<...>
Warning: Permanently added '10.128.1.243' (ED25519) to the list of known hosts.
execve("./syz-executor1145137372", ["./syz-executor1145137372"], 0x7ffcd28527c0 /* 10 vars */) = 0
brk(NULL)                               = 0x55558678b000
brk(0x55558678be00)                     = 0x55558678be00
arch_prctl(ARCH_SET_FS, 0x55558678b480) = 0
set_tid_address(0x55558678b750)         = 5860
set_robust_list(0x55558678b760, 24)     = 0
rseq(0x55558678bda0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1145137372", 4096) = 28
getrandom("\x28\x94\xb6\x5b\x3d\xfc\xc9\xa4", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55558678be00
brk(0x5555867ace00)                     = 0x5555867ace00
brk(0x5555867ad000)                     = 0x5555867ad000
mprotect(0x7f46e5e1b000, 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
rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGSEGV, {sa_handler=0x7f46e5d62190, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f46e5d698e0}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f46e5d62190, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f46e5d698e0}, NULL, 8) = 0
unshare(CLONE_NEWPID)                   = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5861 attached
 <unfinished ...>
[pid  5861] set_robust_list(0x55558678b760, 24 <unfinished ...>
[pid  5860] <... clone resumed>, child_tidptr=0x55558678b750) = 5861
[pid  5861] <... set_robust_list resumed>) = 0
[pid  5861] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5861] getppid()                   = 0
[pid  5861] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0
[pid  5861] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0
[pid  5861] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0
[pid  5861] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0
[pid  5861] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0
[pid  5861] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0
[pid  5861] unshare(CLONE_NEWNS)        = 0
[pid  5861] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0
[pid  5861] unshare(CLONE_NEWIPC)       = 0
[pid  5861] unshare(CLONE_NEWCGROUP)    = 0
[pid  5861] unshare(CLONE_NEWUTS)       = 0
[pid  5861] unshare(CLONE_SYSVSEM)      = 0
[pid  5861] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5861] write(3, "16777216", 8)     = 8
[pid  5861] close(3)                    = 0
[pid  5861] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3
[pid  5861] write(3, "536870912", 9)    = 9
[pid  5861] close(3)                    = 0
[pid  5861] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5861] write(3, "1024", 4)         = 4
[pid  5861] close(3)                    = 0
[pid  5861] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3
[pid  5861] write(3, "8192", 4)         = 4
[pid  5861] close(3)                    = 0
[pid  5861] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3
[pid  5861] write(3, "1024", 4)         = 4
[pid  5861] close(3)                    = 0
[pid  5861] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3
[pid  5861] write(3, "1024", 4)         = 4
[pid  5861] close(3)                    = 0
[pid  5861] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3
[pid  5861] write(3, "1024 1048576 500 1024", 21) = 21
[pid  5861] close(3)                    = 0
[pid  5861] getpid()                    = 1
[pid  5861] 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  5861] 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  5861] unshare(CLONE_NEWNET)       = 0
[pid  5861] openat(AT_FDCWD, "/proc/sys/net/ipv4/ping_group_range", O_WRONLY|O_CLOEXEC) = 3
[pid  5861] write(3, "0 65535", 7)      = 7
[pid  5861] close(3)                    = 0
[pid  5861] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3
[pid  5861] write(3, "100000", 6)       = 6
[pid  5861] close(3)                    = 0
[pid  5861] mkdir("./syz-tmp", 0777)    = 0
[pid  5861] mount("", "./syz-tmp", "tmpfs", 0, NULL) = 0
[pid  5861] mkdir("./syz-tmp/newroot", 0777) = 0
[pid  5861] mkdir("./syz-tmp/newroot/dev", 0700) = 0
[pid  5861] mount("/dev", "./syz-tmp/newroot/dev", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5861] mkdir("./syz-tmp/newroot/proc", 0700) = 0
[pid  5861] mount("syz-proc", "./syz-tmp/newroot/proc", "proc", 0, NULL) = 0
[pid  5861] mkdir("./syz-tmp/newroot/selinux", 0700) = 0
[pid  5861] mount("/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5861] mount("/sys/fs/selinux", "./syz-tmp/newroot/selinux", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5861] mkdir("./syz-tmp/newroot/sys", 0700) = 0
[pid  5861] mount("/sys", "./syz-tmp/newroot/sys", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5861] mount("/sys/kernel/debug", "./syz-tmp/newroot/sys/kernel/debug", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5861] mount("/sys/fs/smackfs", "./syz-tmp/newroot/sys/fs/smackfs", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = -1 ENOENT (No such file or directory)
[pid  5861] mount("/proc/sys/fs/binfmt_misc", "./syz-tmp/newroot/proc/sys/fs/binfmt_misc", NULL, MS_BIND|MS_REC|MS_PRIVATE, NULL) = 0
[pid  5861] mkdir("./syz-tmp/newroot/syz-inputs", 0700) = 0
[pid  5861] 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  5861] mkdir("./syz-tmp/pivot", 0777) = 0
[pid  5861] pivot_root("./syz-tmp", "./syz-tmp/pivot") = 0
[pid  5861] chdir("/")                  = 0
[pid  5861] umount2("./pivot", MNT_DETACH) = 0
[pid  5861] chroot("./newroot")         = 0
[pid  5861] chdir("/")                  = 0
[pid  5861] mkdir("/dev/gadgetfs", 0777) = 0
[pid  5861] mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL) = 0
[pid  5861] mkdir("/dev/binderfs", 0777) = 0
[pid  5861] mount("binder", "/dev/binderfs", "binder", 0, NULL) = 0
[pid  5861] symlink("/dev/binderfs", "./binderfs") = 0
[pid  5861] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy)
[pid  5861] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5865 attached
, child_tidptr=0x55558678b750) = 2
[pid  5865] set_robust_list(0x55558678b760, 24) = 0
[pid  5865] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5865] setpgid(0, 0)               = 0
[pid  5865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5865] write(3, "1000", 4)         = 4
[pid  5865] close(3)                    = 0
[pid  5865] write(1, "executing program\n", 18executing program
) = 18
[pid  5865] futex(0x7f46e5e2132c, FUTEX_WAKE_PRIVATE, 1000000) = 0
[pid  5865] rt_sigaction(SIGRT_1, {sa_handler=0x7f46e5dbfbe0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f46e5d698e0}, NULL, 8) = 0
[pid  5865] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
[pid  5865] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f46e5d2f000
[pid  5865] mprotect(0x7f46e5d30000, 131072, PROT_READ|PROT_WRITE) = 0
[pid  5865] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0
[pid  5865] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f46e5d4f990, parent_tid=0x7f46e5d4f990, exit_signal=0, stack=0x7f46e5d2f000, stack_size=0x20240, tls=0x7f46e5d4f6c0}./strace-static-x86_64: Process 5866 attached
 <unfinished ...>
[pid  5866] rseq(0x7f46e5d4ffe0, 0x20, 0, 0x53053053) = 0
[pid  5865] <... clone3 resumed> => {parent_tid=[3]}, 88) = 3
[pid  5866] set_robust_list(0x7f46e5d4f9a0, 24 <unfinished ...>
[pid  5865] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5866] <... set_robust_list resumed>) = 0
[pid  5865] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5866] rt_sigprocmask(SIG_SETMASK, [],  <unfinished ...>
[pid  5865] futex(0x7f46e5e21328, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5866] <... rt_sigprocmask resumed>NULL, 8) = 0
[pid  5865] <... futex resumed>)        = 0
[pid  5866] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY <unfinished ...>
[pid  5865] futex(0x7f46e5e2132c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5866] <... openat resumed>)       = 3
[pid  5866] futex(0x7f46e5e2132c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5865] <... futex resumed>)        = 0
[pid  5866] futex(0x7f46e5e21328, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5865] futex(0x7f46e5e21328, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5866] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5865] <... futex resumed>)        = 0
[pid  5866] ioctl(3, NBD_SET_SIZE_BLOCKS, 2147483648 <unfinished ...>
[pid  5865] futex(0x7f46e5e2132c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5866] <... ioctl resumed>)        = 0
[pid  5866] futex(0x7f46e5e2132c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5865] <... futex resumed>)        = 0
[pid  5866] futex(0x7f46e5e21328, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5865] futex(0x7f46e5e21328, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5866] <... futex resumed>)        = 0
[pid  5865] <... futex resumed>)        = 1
[pid  5866] socketpair(AF_UNIX, SOCK_STREAM, 0,  <unfinished ...>
[pid  5865] futex(0x7f46e5e2132c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5866] <... socketpair resumed>[4, 5]) = 0
[pid  5866] futex(0x7f46e5e2132c, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5865] <... futex resumed>)        = 0
[pid  5866] <... futex resumed>)        = 1
[pid  5865] futex(0x7f46e5e21328, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5866] ioctl(3, NBD_SET_SOCK, 4 <unfinished ...>
[pid  5865] <... futex resumed>)        = 0
[pid  5865] futex(0x7f46e5e2132c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} <unfinished ...>
[pid  5866] <... ioctl resumed>)        = 0
[pid  5866] futex(0x7f46e5e2132c, FUTEX_WAKE_PRIVATE, 1000000) = 1
[pid  5865] <... futex resumed>)        = 0
[pid  5866] futex(0x7f46e5e21328, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid  5865] futex(0x7f46e5e21328, FUTEX_WAKE_PRIVATE, 1000000 <unfinished ...>
[pid  5866] <... futex resumed>)        = -1 EAGAIN (Resource temporarily unavailable)
[pid  5865] <... futex resumed>)        = 0
[pid  5866] ioctl(3, NBD_DO_IT <unfinished ...>
[pid  5865] futex(0x7f46e5e2132c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out)
[  187.419829][ T5866] nbd0: detected capacity change from 0 to 4294967296
[pid  5865] close(3)                    = 0
[pid  5865] close(4)                    = 0
[pid  5865] close(5)                    = 0
[pid  5865] close(6)                    = -1 EBADF (Bad file descriptor)
[pid  5865] close(7)                    = -1 EBADF (Bad file descriptor)
[pid  5865] close(8)                    = -1 EBADF (Bad file descriptor)
[pid  5865] close(9)                    = -1 EBADF (Bad file descriptor)
[pid  5865] close(10)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(11)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(12)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(13)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(14)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(15)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(16)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(17)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(18)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(19)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(20)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(21)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(22)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(23)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(24)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(25)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(26)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(27)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(28)                   = -1 EBADF (Bad file descriptor)
[pid  5865] close(29)                   = -1 EBADF (Bad file descriptor)
[pid  5865] exit_group(0)               = ?
[  187.579254][ T5151] block nbd0: Receive control failed (result -104)
[pid  5861] kill(-2, SIGKILL)           = 0
[pid  5861] kill(2, SIGKILL)            = 0
[pid  5861] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3
[pid  5861] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0
[pid  5861] getdents64(3, 0x55558678c7f0 /* 2 entries */, 32768) = 48
[pid  5861] getdents64(3, 0x55558678c7f0 /* 0 entries */, 32768) = 0
[pid  5861] close(3)                    = 0
[  217.920312][   T55] block nbd0: Possible stuck request ffff888025585080: control (read@0,4096B). Runtime 30 seconds
[  247.501844][ T5201] udevd[5201]: worker [5862] /devices/virtual/block/nbd0 is taking a long time
[  247.999869][   T55] block nbd0: Possible stuck request ffff888025585080: control (read@0,4096B). Runtime 60 seconds
[  278.079620][   T55] block nbd0: Possible stuck request ffff888025585080: control (read@0,4096B). Runtime 90 seconds
[  308.159670][   T55] block nbd0: Possible stuck request ffff888025585080: control (read@0,4096B). Runtime 120 seconds
[  338.239747][   T55] block nbd0: Possible stuck request ffff888025585080: control (read@0,4096B). Runtime 150 seconds
[  367.671193][ T5201] udevd[5201]: worker [5862] /devices/virtual/block/nbd0 timeout; kill it
[  367.684107][ T5201] udevd[5201]: seq 9083 '/devices/virtual/block/nbd0' killed
[  368.319802][   T55] block nbd0: Possible stuck request ffff888025585080: control (read@0,4096B). Runtime 180 seconds
[  398.399803][   T55] block nbd0: Possible stuck request ffff888025585080: control (read@0,4096B). Runtime 210 seconds
[  428.479626][   T55] block nbd0: Possible stuck request ffff888025585080: control (read@0,4096B). Runtime 240 seconds
[  429.759670][   T31] INFO: task syz-executor114:5866 blocked for more than 143 seconds.
[  429.768687][   T31]       Not tainted 6.16.0-rc3-next-20250627-syzkaller #0
[  429.777085][   T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  429.786837][   T31] task:syz-executor114 state:D stack:26264 pid:5866  tgid:5865  ppid:5861   task_flags:0x400140 flags:0x00004006
[  429.801129][   T31] Call Trace:
[  429.804457][   T31]  <TASK>
[  429.811175][   T31]  __schedule+0x16f5/0x4d00
[  429.816862][   T31]  ? __lock_acquire+0xab9/0xd20
[  429.822969][   T31]  ? schedule+0x165/0x360
[  429.829935][   T31]  ? __pfx___schedule+0x10/0x10
[  429.835107][   T31]  ? schedule+0x91/0x360
[  429.843848][   T31]  schedule+0x165/0x360
[  429.851300][   T31]  schedule_preempt_disabled+0x13/0x30
[  429.859082][   T31]  __mutex_lock+0x724/0xe80
[  429.867317][   T31]  ? __mutex_lock+0x51b/0xe80
[  429.873196][   T31]  ? bdev_release+0x1a9/0x650
[  429.877903][   T31]  ? __pfx___mutex_lock+0x10/0x10
[  429.887182][   T31]  ? __asan_memset+0x22/0x50
[  429.892256][   T31]  ? __pfx___fsnotify_parent+0x10/0x10
[  429.898088][   T31]  ? do_raw_spin_lock+0x121/0x290
[  429.904083][   T31]  bdev_release+0x1a9/0x650
[  429.909833][   T31]  ? __pfx_blkdev_release+0x10/0x10
[  429.915287][   T31]  blkdev_release+0x15/0x20
[  429.920284][   T31]  __fput+0x44c/0xa70
[  429.929133][   T31]  task_work_run+0x1d4/0x260
[  429.934050][   T31]  ? __pfx_task_work_run+0x10/0x10
[  429.942482][   T31]  ? task_work_add+0x281/0x420
[  429.951982][   T31]  ptrace_notify+0x281/0x2c0
[  429.957320][   T31]  ? __pfx_ptrace_notify+0x10/0x10
[  429.967459][   T31]  ? __fput_deferred+0x215/0x390
[  429.974306][   T31]  ? __pfx___fput_deferred+0x10/0x10
[  429.983510][   T31]  ? __fget_files+0x2a/0x420
[  429.990568][   T31]  syscall_exit_work+0xc6/0x1d0
[  429.996064][   T31]  do_syscall_64+0x2ad/0x3b0
[  430.006769][   T31]  ? lockdep_hardirqs_on+0x9c/0x150
[  430.013641][   T31]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  430.020113][   T31]  ? clear_bhb_loop+0x60/0xb0
[  430.030028][   T31]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  430.036690][   T31] RIP: 0033:0x7f46e5d99eb9
[  430.048639][   T31] RSP: 002b:00007f46e5d4f158 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[  430.057371][   T31] RAX: 0000000000000000 RBX: 00007f46e5e21328 RCX: 00007f46e5d99eb9
[  430.070918][   T31] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
[  430.080538][   T31] RBP: 00007f46e5e21320 R08: 00007f46e5d4f6c0 R09: 0000000000000000
[  430.090474][   T31] R10: 00007f46e5d4f6c0 R11: 0000000000000246 R12: 00007f46e5e2132c
[  430.100030][   T31] R13: 0000000000000010 R14: 00007ffc6f6881e0 R15: 00007ffc6f6882c8
[  430.111971][   T31]  </TASK>
[  430.115043][   T31] 
[  430.115043][   T31] Showing all locks held in the system:
[  430.125635][   T31] 1 lock held by khungtaskd/31:
[  430.132147][   T31]  #0: ffffffff8e33bf20 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[  430.142690][   T31] 2 locks held by getty/5594:
[  430.150400][   T31]  #0: ffff88814e22e0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[  430.161032][   T31]  #1: ffffc9000331b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
[  430.173492][   T31] 1 lock held by udevd/5862:
[  430.178133][   T31]  #0: ffff8880254e5358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_open+0xe0/0xd30
[  430.191499][   T31] 1 lock held by syz-executor114/5866:
[  430.197256][   T31]  #0: ffff8880254e5358 (&disk->open_mutex){+.+.}-{4:4}, at: bdev_release+0x1a9/0x650
[  430.208472][   T31] 
[  430.211809][   T31] =============================================
[  430.211809][   T31] 
[  430.221005][   T31] NMI backtrace for cpu 1
[  430.221034][   T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc3-next-20250627-syzkaller #0 PREEMPT(full) 
[  430.221056][   T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  430.221068][   T31] Call Trace:
[  430.221080][   T31]  <TASK>
[  430.221090][   T31]  dump_stack_lvl+0x189/0x250
[  430.221116][   T31]  ? __wake_up_klogd+0xd9/0x110
[  430.221142][   T31]  ? __pfx_dump_stack_lvl+0x10/0x10
[  430.221161][   T31]  ? __pfx__printk+0x10/0x10
[  430.221194][   T31]  nmi_cpu_backtrace+0x39e/0x3d0
[  430.221218][   T31]  ? __pfx_nmi_cpu_backtrace+0x10/0x10
[  430.221235][   T31]  ? _printk+0xcf/0x120
[  430.221259][   T31]  ? __pfx__printk+0x10/0x10
[  430.221283][   T31]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  430.221312][   T31]  nmi_trigger_cpumask_backtrace+0x17a/0x300
[  430.221335][   T31]  watchdog+0xfee/0x1030
[  430.221364][   T31]  ? watchdog+0x1de/0x1030
[  430.221408][   T31]  kthread+0x711/0x8a0
[  430.221433][   T31]  ? __pfx_watchdog+0x10/0x10
[  430.221457][   T31]  ? __pfx_kthread+0x10/0x10
[  430.221487][   T31]  ? _raw_spin_unlock_irq+0x23/0x50
[  430.221509][   T31]  ? lockdep_hardirqs_on+0x9c/0x150
[  430.221531][   T31]  ? __pfx_kthread+0x10/0x10
[  430.221555][   T31]  ret_from_fork+0x3fc/0x770
[  430.221589][   T31]  ? __pfx_ret_from_fork+0x10/0x10
[  430.221624][   T31]  ? __switch_to_asm+0x39/0x70
[  430.221645][   T31]  ? __switch_to_asm+0x33/0x70
[  430.221668][   T31]  ? __pfx_kthread+0x10/0x10
[  430.221692][   T31]  ret_from_fork_asm+0x1a/0x30
[  430.221732][   T31]  </TASK>
[  430.221740][   T31] Sending NMI from CPU 1 to CPUs 0:
[  430.416078][    C0] NMI backtrace for cpu 0
[  430.416099][    C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.16.0-rc3-next-20250627-syzkaller #0 PREEMPT(full) 
[  430.416119][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  430.416130][    C0] RIP: 0010:pv_native_safe_halt+0x13/0x20
[  430.416156][    C0] Code: cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 23 dd 11 00 f3 0f 1e fa fb f4 <c3> cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90
[  430.416171][    C0] RSP: 0018:ffffffff8e007d80 EFLAGS: 000002c2
[  430.416187][    C0] RAX: d69be7491addd900 RBX: ffffffff81971578 RCX: d69be7491addd900
[  430.416200][    C0] RDX: 0000000000000001 RSI: ffffffff8da603b1 RDI: ffffffff8be4ab80
[  430.416212][    C0] RBP: ffffffff8e007ea8 R08: ffff8880b8632f1b R09: 1ffff110170c65e3
[  430.416225][    C0] R10: dffffc0000000000 R11: ffffed10170c65e4 R12: ffffffff8fc2ac30
[  430.416237][    C0] R13: 0000000000000000 R14: 0000000000000000 R15: 1ffffffff1c12a50
[  430.416249][    C0] FS:  0000000000000000(0000) GS:ffff8881259e6000(0000) knlGS:0000000000000000
[  430.416263][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  430.416274][    C0] CR2: 00005593c5874660 CR3: 000000000e136000 CR4: 00000000003526f0
[  430.416289][    C0] Call Trace:
[  430.416298][    C0]  <TASK>
[  430.416304][    C0]  default_idle+0x13/0x20
[  430.416328][    C0]  default_idle_call+0x74/0xb0
[  430.416353][    C0]  do_idle+0x1e8/0x510
[  430.416374][    C0]  ? __pfx_do_idle+0x10/0x10
[  430.416397][    C0]  ? lockdep_hardirqs_on+0x9c/0x150
[  430.416418][    C0]  ? _raw_spin_unlock_irqrestore+0xad/0x110
[  430.416437][    C0]  ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[  430.416459][    C0]  cpu_startup_entry+0x44/0x60
[  430.416476][    C0]  rest_init+0x2de/0x300
[  430.416500][    C0]  ? __pfx_x86_late_time_init+0x10/0x10
[  430.416524][    C0]  start_kernel+0x47d/0x500
[  430.416544][    C0]  x86_64_start_reservations+0x24/0x30
[  430.416566][    C0]  x86_64_start_kernel+0x143/0x1c0
[  430.416586][    C0]  common_startup_64+0x13e/0x147
[  430.416616][    C0]  </TASK>
[  430.417054][   T31] Kernel panic - not syncing: hung_task: blocked tasks
[  430.417074][   T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc3-next-20250627-syzkaller #0 PREEMPT(full) 
[  430.417102][   T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[  430.417117][   T31] Call Trace:
[  430.417127][   T31]  <TASK>
[  430.417137][   T31]  dump_stack_lvl+0x99/0x250
[  430.417168][   T31]  ? __asan_memcpy+0x40/0x70
[  430.417203][   T31]  ? __pfx_dump_stack_lvl+0x10/0x10
[  430.417229][   T31]  ? __pfx__printk+0x10/0x10
[  430.417271][   T31]  panic+0x2db/0x790
[  430.417299][   T31]  ? __pfx_panic+0x10/0x10
[  430.417319][   T31]  ? nmi_backtrace_stall_check+0x433/0x440
[  430.417353][   T31]  ? irq_work_queue+0xc3/0x140
[  430.417395][   T31]  watchdog+0x102d/0x1030
[  430.417431][   T31]  ? watchdog+0x1de/0x1030
[  430.417472][   T31]  kthread+0x711/0x8a0
[  430.417504][   T31]  ? __pfx_watchdog+0x10/0x10
[  430.417535][   T31]  ? __pfx_kthread+0x10/0x10
[  430.417564][   T31]  ? _raw_spin_unlock_irq+0x23/0x50
[  430.417590][   T31]  ? lockdep_hardirqs_on+0x9c/0x150
[  430.417617][   T31]  ? __pfx_kthread+0x10/0x10
[  430.417653][   T31]  ret_from_fork+0x3fc/0x770
[  430.417692][   T31]  ? __pfx_ret_from_fork+0x10/0x10
[  430.417734][   T31]  ? __switch_to_asm+0x39/0x70
[  430.417761][   T31]  ? __switch_to_asm+0x33/0x70
[  430.417788][   T31]  ? __pfx_kthread+0x10/0x10
[  430.417817][   T31]  ret_from_fork_asm+0x1a/0x30
[  430.417864][   T31]  </TASK>
[  430.810976][   T31] Kernel Offset: disabled
[  430.815876][   T31] Rebooting in 86400 seconds..