./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3602439646 <...> Warning: Permanently added '10.128.1.86' (ED25519) to the list of known hosts. execve("./syz-executor3602439646", ["./syz-executor3602439646"], 0x7ffd7f67e060 /* 10 vars */) = 0 brk(NULL) = 0x55558f35d000 brk(0x55558f35dd40) = 0x55558f35dd40 arch_prctl(ARCH_SET_FS, 0x55558f35d3c0) = 0 set_tid_address(0x55558f35d690) = 5066 set_robust_list(0x55558f35d6a0, 24) = 0 rseq(0x55558f35dce0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3602439646", 4096) = 28 getrandom("\x2f\x98\x34\x09\x7b\x19\xc2\xe4", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558f35dd40 brk(0x55558f37ed40) = 0x55558f37ed40 brk(0x55558f37f000) = 0x55558f37f000 mprotect(0x7f48fd7f8000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5067 attached , child_tidptr=0x55558f35d690) = 5067 [pid 5067] set_robust_list(0x55558f35d6a0, 24) = 0 [pid 5067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5067] setpgid(0, 0) = 0 [pid 5067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1000", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] futex(0x7f48fd7fe34c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5067] rt_sigaction(SIGRT_1, {sa_handler=0x7f48fd79a720, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f48fd78bda0}, NULL, 8) = 0 [pid 5067] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5067] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f48fd70f000 [pid 5067] mprotect(0x7f48fd710000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5067] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5067] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f48fd72f990, parent_tid=0x7f48fd72f990, exit_signal=0, stack=0x7f48fd70f000, stack_size=0x20300, tls=0x7f48fd72f6c0} => {parent_tid=[5068]}, 88) = 5068 ./strace-static-x86_64: Process 5068 attached [pid 5067] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5068] rseq(0x7f48fd72ffe0, 0x20, 0, 0x53053053) = 0 [pid 5067] futex(0x7f48fd7fe348, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] set_robust_list(0x7f48fd72f9a0, 24 [pid 5067] <... futex resumed>) = 0 [pid 5068] <... set_robust_list resumed>) = 0 [pid 5067] futex(0x7f48fd7fe34c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5068] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5068] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 3 [pid 5068] futex(0x7f48fd7fe34c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5068] futex(0x7f48fd7fe348, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5067] <... futex resumed>) = 0 [pid 5067] futex(0x7f48fd7fe348, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] <... futex resumed>) = 0 [pid 5067] <... futex resumed>) = 1 [pid 5067] futex(0x7f48fd7fe34c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5068] socketpair(AF_UNIX, SOCK_STREAM, 0, [4, 5]) = 0 [pid 5068] futex(0x7f48fd7fe34c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5067] <... futex resumed>) = 0 [pid 5068] futex(0x7f48fd7fe348, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5067] futex(0x7f48fd7fe348, FUTEX_WAKE_PRIVATE, 1000000 [pid 5068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5067] <... futex resumed>) = 0 [pid 5068] recvmsg(5, [pid 5067] futex(0x7f48fd7fe34c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5067] futex(0x7f48fd7fe35c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5067] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f48fd6ee000 [pid 5067] mprotect(0x7f48fd6ef000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5067] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5067] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f48fd70e990, parent_tid=0x7f48fd70e990, exit_signal=0, stack=0x7f48fd6ee000, stack_size=0x20300, tls=0x7f48fd70e6c0}./strace-static-x86_64: Process 5069 attached => {parent_tid=[5069]}, 88) = 5069 [pid 5069] rseq(0x7f48fd70efe0, 0x20, 0, 0x53053053 [pid 5067] rt_sigprocmask(SIG_SETMASK, [], [pid 5069] <... rseq resumed>) = 0 [pid 5067] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5069] set_robust_list(0x7f48fd70e9a0, 24 [pid 5067] futex(0x7f48fd7fe358, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] <... set_robust_list resumed>) = 0 [pid 5069] rt_sigprocmask(SIG_SETMASK, [], [pid 5067] <... futex resumed>) = 0 [pid 5069] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5067] futex(0x7f48fd7fe35c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5069] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 6 [pid 5069] futex(0x7f48fd7fe35c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5067] <... futex resumed>) = 0 [pid 5069] futex(0x7f48fd7fe358, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5067] futex(0x7f48fd7fe358, FUTEX_WAKE_PRIVATE, 1000000 [pid 5069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5069] sendmsg(5, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\xaf\x41\x58\x18\xf0\xf6\xc5\x80\xe6\xe9\x76\x09\x97\x88\x3e\x48\xb6\xc8\x0f\x20\xaa\xbb\xe4\x88\xa2\xb1\x86\xd9\xd8\xc8\xcc\xf9\x3e\x60\xcd\xeb\x9f\xdf\x99\xeb\x99\xa2\x57\x7e\x97\x4a\x48\xea\xfe\x67\xfb\x97\xca\xcd\xc1\x67\xf0\xd3\x6f\x12\xf0\xbd\xf1\xf3\xcb\x05\x6d\x86\xdd\x86\x8b\x68\xfc\x71\x99\x0e\x0b\x19\xdf\x6e\xaf\x66\x40\x15\xa1\x75\x7e\xa6\x27\x1e\xdc\xa7\xa1\x48\xac\xba\xa4\xbb\x6e\x79"..., iov_len=222}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}, {iov_base=NULL, iov_len=0}], msg_iovlen=7, msg_control=[{cmsg_len=44, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[6, 3, 4, 6, 6, 5, 6]}], msg_controllen=48, msg_flags=MSG_MORE}, MSG_OOB|MSG_PROBE|MSG_DONTWAIT|MSG_MORE [pid 5067] <... futex resumed>) = 0 [pid 5067] futex(0x7f48fd7fe35c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5069] <... sendmsg resumed>) = 222 [pid 5069] futex(0x7f48fd7fe35c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5067] <... futex resumed>) = 0 [pid 5069] futex(0x7f48fd7fe358, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5067] futex(0x7f48fd7fe358, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5069] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x1c", iov_len=1}], msg_iovlen=1, msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET, cmsg_type=SCM_RIGHTS, cmsg_data=[0]}], msg_controllen=24, msg_flags=0}, MSG_OOB|MSG_DONTWAIT [pid 5067] futex(0x7f48fd7fe35c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5069] <... sendmsg resumed>) = 1 [pid 5069] futex(0x7f48fd7fe35c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5067] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5069] <... futex resumed>) = 0 [pid 5069] futex(0x7f48fd7fe358, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5067] exit_group(0 [pid 5069] <... futex resumed>) = ? [pid 5067] <... exit_group resumed>) = ? [pid 5069] +++ exited with 0 +++ [pid 5068] <... recvmsg resumed> ) = ? [pid 5068] +++ exited with 0 +++ [pid 5067] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5067, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} --- clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5070 attached [pid 5070] set_robust_list(0x55558f35d6a0, 24 [pid 5066] <... clone resumed>, child_tidptr=0x55558f35d690) = 5070 [pid 5070] <... set_robust_list resumed>) = 0 [pid 5070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5070] setpgid(0, 0) = 0 [pid 5070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5070] write(3, "1000", 4) = 4 [pid 5070] close(3) = 0 [pid 5070] futex(0x7f48fd7fe34c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5070] rt_sigaction(SIGRT_1, {sa_handler=0x7f48fd79a720, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f48fd78bda0}, NULL, 8) = 0 [pid 5070] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5070] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f48fd70f000 [pid 5070] mprotect(0x7f48fd710000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5070] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5070] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f48fd72f990, parent_tid=0x7f48fd72f990, exit_signal=0, stack=0x7f48fd70f000, stack_size=0x20300, tls=0x7f48fd72f6c0}./strace-static-x86_64: Process 5071 attached [pid 5071] rseq(0x7f48fd72ffe0, 0x20, 0, 0x53053053) = 0 [pid 5070] <... clone3 resumed> => {parent_tid=[5071]}, 88) = 5071 [pid 5071] set_robust_list(0x7f48fd72f9a0, 24 [pid 5070] rt_sigprocmask(SIG_SETMASK, [], [pid 5071] <... set_robust_list resumed>) = 0 [pid 5070] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5071] rt_sigprocmask(SIG_SETMASK, [], [pid 5070] futex(0x7f48fd7fe348, FUTEX_WAKE_PRIVATE, 1000000 [pid 5071] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5070] <... futex resumed>) = 0 [pid 5071] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_DEVMAP_HASH, key_size=4, value_size=8, max_entries=8, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72 [pid 5070] futex(0x7f48fd7fe34c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] <... bpf resumed>) = 3 [pid 5071] futex(0x7f48fd7fe34c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5071] futex(0x7f48fd7fe348, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5070] <... futex resumed>) = 0 [pid 5070] futex(0x7f48fd7fe348, FUTEX_WAKE_PRIVATE, 1000000 [pid 5071] <... futex resumed>) = 0 [pid 5070] <... futex resumed>) = 1 [pid 5071] socketpair(AF_UNIX, SOCK_STREAM, 0, [pid 5070] futex(0x7f48fd7fe34c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5071] <... socketpair resumed>[4, 5]) = 0 [pid 5071] futex(0x7f48fd7fe34c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5071] futex(0x7f48fd7fe348, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5070] <... futex resumed>) = 0 [pid 5071] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5070] futex(0x7f48fd7fe348, FUTEX_WAKE_PRIVATE, 1000000 [pid 5071] recvmsg(5, [pid 5070] <... futex resumed>) = 0 [ 61.057227][ T2433] [ 61.059698][ T2433] ============================================ [ 61.065922][ T2433] WARNING: possible recursive locking detected [ 61.072070][ T2433] 6.8.0-syzkaller-05271-gf99c5f563c17 #0 Not tainted [ 61.078920][ T2433] -------------------------------------------- [ 61.085142][ T2433] kworker/u8:7/2433 is trying to acquire lock: [ 61.091279][ T2433] ffffffff8f48b778 (unix_gc_lock){+.+.}-{2:2}, at: unix_notinflight+0x204/0x390 [ 61.100511][ T2433] [pid 5070] futex(0x7f48fd7fe34c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 5070] futex(0x7f48fd7fe35c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5070] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f48fd6ee000 [pid 5070] mprotect(0x7f48fd6ef000, 131072, PROT_READ|PROT_WRITE) = 0 [ 61.100511][ T2433] but task is already holding lock: [ 61.107953][ T2433] ffffffff8f48b778 (unix_gc_lock){+.+.}-{2:2}, at: __unix_gc+0x117/0xf10 [ 61.116407][ T2433] [ 61.116407][ T2433] other info that might help us debug this: [ 61.124477][ T2433] Possible unsafe locking scenario: [ 61.124477][ T2433] [ 61.131997][ T2433] CPU0 [ 61.135280][ T2433] ---- [ 61.138536][ T2433] lock(unix_gc_lock); [ 61.142761][ T2433] lock(unix_gc_lock); [ 61.146940][ T2433] [ 61.146940][ T2433] *** DEADLOCK *** [ 61.146940][ T2433] [pid 5070] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5070] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f48fd70e990, parent_tid=0x7f48fd70e990, exit_signal=0, stack=0x7f48fd6ee000, stack_size=0x20300, tls=0x7f48fd70e6c0}./strace-static-x86_64: Process 5072 attached [pid 5072] rseq(0x7f48fd70efe0, 0x20, 0, 0x53053053 [pid 5070] <... clone3 resumed> => {parent_tid=[5072]}, 88) = 5072 [pid 5072] <... rseq resumed>) = 0 [pid 5070] rt_sigprocmask(SIG_SETMASK, [], [pid 5072] set_robust_list(0x7f48fd70e9a0, 24 [pid 5070] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5072] <... set_robust_list resumed>) = 0 [pid 5072] rt_sigprocmask(SIG_SETMASK, [], [pid 5070] futex(0x7f48fd7fe358, FUTEX_WAKE_PRIVATE, 1000000 [pid 5072] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5070] <... futex resumed>) = 0 [pid 5072] bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_RINGBUF, key_size=0, value_size=0, max_entries=262144, map_flags=0, inner_map_fd=0, map_name="", map_ifindex=0, btf_fd=0, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = 6 [pid 5070] futex(0x7f48fd7fe35c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5072] futex(0x7f48fd7fe35c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5070] <... futex resumed>) = 0 [ 61.155184][ T2433] May be due to missing lock nesting notation [ 61.155184][ T2433] [ 61.163668][ T2433] 3 locks held by kworker/u8:7/2433: [ 61.168945][ T2433] #0: ffff888014c81148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x1770 [ 61.180682][ T2433] #1: ffffc90009cc7d00 (unix_gc_work){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x1770 [ 61.191063][ T2433] #2: ffffffff8f48b778 (unix_gc_lock){+.+.}-{2:2}, at: __unix_gc+0x117/0xf10 [ 61.199981][ T2433] [ 61.199981][ T2433] stack backtrace: [ 61.205955][ T2433] CPU: 1 PID: 2433 Comm: kworker/u8:7 Not tainted 6.8.0-syzkaller-05271-gf99c5f563c17 #0 [ 61.216018][ T2433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 61.226337][ T2433] Workqueue: events_unbound __unix_gc [ 61.231789][ T2433] Call Trace: [ 61.235054][ T2433] [ 61.238028][ T2433] dump_stack_lvl+0x1e7/0x2e0 [ 61.242950][ T2433] ? __pfx_dump_stack_lvl+0x10/0x10 [ 61.248140][ T2433] ? print_deadlock_bug+0x479/0x620 [ 61.253604][ T2433] ? _find_first_zero_bit+0xd4/0x100 [ 61.259305][ T2433] validate_chain+0x15c1/0x58e0 [ 61.264257][ T2433] ? lockdep_unlock+0x16a/0x300 [ 61.269145][ T2433] ? __pfx_validate_chain+0x10/0x10 [ 61.274352][ T2433] ? add_lock_to_list+0x1de/0x2e0 [ 61.279387][ T2433] ? validate_chain+0x15a2/0x58e0 [ 61.284512][ T2433] ? mark_lock+0x9a/0x350 [ 61.289086][ T2433] __lock_acquire+0x1346/0x1fd0 [ 61.293941][ T2433] lock_acquire+0x1e4/0x530 [ 61.298434][ T2433] ? unix_notinflight+0x204/0x390 [ 61.303563][ T2433] ? __pfx_lock_acquire+0x10/0x10 [ 61.308753][ T2433] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 61.314291][ T2433] ? scan_children+0x2ce/0x480 [ 61.319128][ T2433] _raw_spin_lock+0x2e/0x40 [ 61.323881][ T2433] ? unix_notinflight+0x204/0x390 [ 61.328898][ T2433] unix_notinflight+0x204/0x390 [ 61.333736][ T2433] unix_destruct_scm+0x221/0x350 [ 61.338666][ T2433] ? __pfx_unix_destruct_scm+0x10/0x10 [ 61.344294][ T2433] ? scan_children+0x2ce/0x480 [ 61.349076][ T2433] ? __lock_acquire+0x1346/0x1fd0 [ 61.354276][ T2433] ? __pfx_inc_inflight+0x10/0x10 [ 61.359293][ T2433] skb_release_head_state+0x100/0x250 [ 61.365001][ T2433] ? __unix_gc+0xaf3/0xf10 [ 61.369577][ T2433] kfree_skb_reason+0x15d/0x390 [ 61.374466][ T2433] __unix_gc+0xaf3/0xf10 [ 61.379098][ T2433] ? __pfx___unix_gc+0x10/0x10 [ 61.383958][ T2433] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 61.390329][ T2433] ? process_scheduled_works+0x91b/0x1770 [ 61.396058][ T2433] process_scheduled_works+0xa00/0x1770 [ 61.401626][ T2433] ? __pfx_process_scheduled_works+0x10/0x10 [ 61.407692][ T2433] ? assign_work+0x364/0x3d0 [ 61.412380][ T2433] worker_thread+0x86d/0xd70 [ 61.417072][ T2433] ? __kthread_parkme+0x169/0x1d0 [ 61.422478][ T2433] ? __pfx_worker_thread+0x10/0x10 [ 61.427607][ T2433] kthread+0x2f0/0x390 [ 61.431782][ T2433] ? __pfx_worker_thread+0x10/0x10 [ 61.436900][ T2433] ? __pfx_kthread+0x10/0x10 [ 61.441484][ T2433] ret_from_fork+0x4b/0x80 [ 61.445976][ T2433] ? __pfx_kthread+0x10/0x10 [ 61.450739][ T2433] ret_from_fork_asm+0x1a/0x30 [ 61.455536][ T2433]