./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2385421746 <...> Warning: Permanently added '10.128.0.8' (ED25519) to the list of known hosts. execve("./syz-executor2385421746", ["./syz-executor2385421746"], 0x7fffea391e10 /* 10 vars */) = 0 brk(NULL) = 0x5555758d8000 brk(0x5555758d8d00) = 0x5555758d8d00 arch_prctl(ARCH_SET_FS, 0x5555758d8380) = 0 set_tid_address(0x5555758d8650) = 5854 set_robust_list(0x5555758d8660, 24) = 0 rseq(0x5555758d8ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2385421746", 4096) = 28 getrandom("\x26\x03\xd9\x64\x2c\xf1\x3b\xd1", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555758d8d00 brk(0x5555758f9d00) = 0x5555758f9d00 brk(0x5555758fa000) = 0x5555758fa000 mprotect(0x7ff9fca00000, 16384, PROT_READ) = 0 mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000 mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000 mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555758d8650) = 5855 ./strace-static-x86_64: Process 5855 attached [pid 5854] openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC [pid 5855] set_robust_list(0x5555758d8660, 24 [pid 5854] <... openat resumed>) = 3 [pid 5855] <... set_robust_list resumed>) = 0 [pid 5854] write(3, "10000000000", 11) = 11 [pid 5854] close(3) = 0 [pid 5854] openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 [pid 5854] write(3, "20", 2) = 2 [pid 5854] close(3) = 0 [pid 5854] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 [pid 5854] write(3, "1", 1) = 1 [pid 5854] close(3) = 0 [pid 5854] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 [pid 5854] write(3, "0", 1) = 1 [pid 5854] close(3) = 0 [pid 5854] openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 [pid 5854] write(3, "0", 1) = 1 [pid 5854] close(3) = 0 [pid 5854] openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 [pid 5854] write(3, "1", 1) = 1 [pid 5854] close(3) = 0 [pid 5854] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 [pid 5854] write(3, "100", 3) = 3 [pid 5854] close(3) = 0 [pid 5854] openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 [pid 5854] write(3, "0", 1) = 1 [pid 5854] close(3) = 0 [pid 5854] openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 [pid 5854] write(3, "0", 1) = 1 [pid 5854] close(3) = 0 [pid 5854] openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 [pid 5854] write(3, "7 4 1 3", 7) = 7 [pid 5854] close(3) = 0 [pid 5854] openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 [pid 5854] write(3, "1", 1) = 1 [pid 5854] close(3) = 0 [pid 5854] openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 [pid 5854] write(3, "1", 1) = 1 [pid 5854] close(3) = 0 [pid 5854] openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 [pid 5854] write(3, "0", 1) = 1 [pid 5854] close(3) = 0 [pid 5854] openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 [pid 5854] write(3, "5855", 4) = 4 [pid 5854] close(3) = 0 [pid 5854] kill(5855, SIGKILL) = 0 [pid 5855] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5855, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5856 attached , child_tidptr=0x5555758d8650) = 5856 [pid 5856] set_robust_list(0x5555758d8660, 24) = 0 [pid 5856] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5856] getppid() = 0 [pid 5856] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5856] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5856] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5856] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5856] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5856] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5856] unshare(CLONE_NEWNS) = 0 [pid 5856] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5856] unshare(CLONE_NEWIPC) = 0 [pid 5856] unshare(CLONE_NEWCGROUP) = 0 [pid 5856] unshare(CLONE_NEWUTS) = 0 [pid 5856] unshare(CLONE_SYSVSEM) = 0 [pid 5856] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5856] write(3, "16777216", 8) = 8 [pid 5856] close(3) = 0 [pid 5856] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5856] write(3, "536870912", 9) = 9 [pid 5856] close(3) = 0 [pid 5856] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5856] write(3, "1024", 4) = 4 [pid 5856] close(3) = 0 [pid 5856] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5856] write(3, "8192", 4) = 4 [pid 5856] close(3) = 0 [pid 5856] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5856] write(3, "1024", 4) = 4 [pid 5856] close(3) = 0 [pid 5856] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5856] write(3, "1024", 4) = 4 [pid 5856] close(3) = 0 [pid 5856] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5856] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5856] close(3) = 0 [pid 5856] getpid() = 1 [pid 5856] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5868] set_robust_list(0x5555758d8660, 24) = 0 [pid 5868] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5868] setpgid(0, 0 [pid 5856] <... clone resumed>, child_tidptr=0x5555758d8650) = 3 [pid 5868] <... setpgid resumed>) = 0 [pid 5868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5868] write(3, "1000", 4) = 4 [pid 5868] close(3) = 0 [pid 5868] read(200, 0x7ffd2e1fbf30, 1000) = -1 EAGAIN (Resource temporarily unavailable) executing program [pid 5868] write(1, "executing program\n", 18) = 18 [pid 5868] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER) = 3 [pid 5868] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x14\x00\x00\x00\x10\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x20\x00\x00\x00\x00\x0a\x01\x03\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\xff\xfd\x09\x00\x01\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x40\x00\x00\x00\x03\x0a\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x09\x00\x03\x00\x73\x79\x7a\x32\x00\x00\x00\x00\x14\x00\x04\x80\x08\x00\x02\x40\x32\x65\x8a\xeb\x08\x00\x01\x40"..., iov_len=204}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 204 [ 219.398421][ C0] sched: DL replenish lagged too much [pid 5868] write(200, "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xbb\x08\x00\x45\x00\x00\x2c\x00\x00\x00\x00\x00\x06\xba\xcd\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x4e\x29\x44\x43\x42\x41\x44\x43\x42\x41\x60\x16\x00\x01\x42\x96\x00\x00\x02\x02\x00\x00", 58) = 58 [pid 5868] close(3) = 0 [pid 5868] close(4) = -1 EBADF (Bad file descriptor) [pid 5868] close(5) = -1 EBADF (Bad file descriptor) [pid 5868] close(6) = -1 EBADF (Bad file descriptor) [pid 5868] close(7) = -1 EBADF (Bad file descriptor) [pid 5868] close(8) = -1 EBADF (Bad file descriptor) [pid 5868] close(9) = -1 EBADF (Bad file descriptor) [pid 5868] close(10) = -1 EBADF (Bad file descriptor) [pid 5868] close(11) = -1 EBADF (Bad file descriptor) [pid 5868] close(12) = -1 EBADF (Bad file descriptor) [pid 5868] close(13) = -1 EBADF (Bad file descriptor) [pid 5868] close(14) = -1 EBADF (Bad file descriptor) [pid 5868] close(15) = -1 EBADF (Bad file descriptor) [pid 5868] close(16) = -1 EBADF (Bad file descriptor) [pid 5868] close(17) = -1 EBADF (Bad file descriptor) [pid 5868] close(18) = -1 EBADF (Bad file descriptor) [pid 5868] close(19) = -1 EBADF (Bad file descriptor) [pid 5868] close(20) = -1 EBADF (Bad file descriptor) [pid 5868] close(21) = -1 EBADF (Bad file descriptor) [pid 5868] close(22) = -1 EBADF (Bad file descriptor) [pid 5868] close(23) = -1 EBADF (Bad file descriptor) [pid 5868] close(24) = -1 EBADF (Bad file descriptor) [pid 5868] close(25) = -1 EBADF (Bad file descriptor) [pid 5868] close(26 [pid 5856] kill(-3, SIGKILL [pid 5868] <... close resumed>) = ? [pid 5856] <... kill resumed>) = 0 [pid 5868] +++ killed by SIGKILL +++ [pid 5856] kill(3, SIGKILL) = 0 [pid 5856] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=3, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5856] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5870 attached , child_tidptr=0x5555758d8650) = 4 [pid 5870] set_robust_list(0x5555758d8660, 24) = 0 [pid 5870] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5870] setpgid(0, 0) = 0 [pid 5870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5856] kill(-4, SIGKILL) = 0 [pid 5856] kill(4, SIGKILL) = 0 [pid 5870] <... openat resumed>) = ? [pid 5870] +++ killed by SIGKILL +++ [pid 5856] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=4, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=3 /* 0.03 s */} --- [pid 5856] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5877 attached [pid 5877] set_robust_list(0x5555758d8660, 24) = 0 [pid 5877] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5877] setpgid(0, 0) = 0 [pid 5877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5856] <... clone resumed>, child_tidptr=0x5555758d8650) = 5 executing program [pid 5877] <... openat resumed>) = 3 [pid 5877] write(3, "1000", 4) = 4 [pid 5877] close(3) = 0 [pid 5877] read(200, 0x7ffd2e1fbf30, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5877] write(1, "executing program\n", 18) = 18 [pid 5877] socket(AF_NETLINK, SOCK_RAW, NETLINK_NETFILTER [pid 5856] kill(-5, SIGKILL) = 0 [pid 5856] kill(5, SIGKILL) = 0 [ 436.362267][ T30] INFO: task kworker/1:1:46 blocked for more than 148 seconds. [ 436.988974][ T30] Not tainted 6.14.0-rc2-next-20250214-syzkaller #0 [ 436.996157][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [pid 5877] <... socket resumed>) = ? [ 438.984468][ T30] task:kworker/1:1 state:D stack:21680 pid:46 tgid:46 ppid:2 task_flags:0x4208060 flags:0x00004000 [pid 5877] +++ killed by SIGKILL +++ [pid 5856] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=9 /* 0.09 s */} --- [ 442.470691][ T30] Workqueue: events_power_efficient reg_check_chans_work [ 442.477867][ T30] Call Trace: [ 444.250222][ T30] [ 444.253237][ T30] __schedule+0x190e/0x4c90 [ 444.257796][ T30] ? try_to_wake_up+0x959/0x1470