./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3341150139 <...> le) [pid 6494] <... futex resumed>) = 0 [pid 6497] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6496] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6494] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6497] <... setsockopt resumed>) = 0 [pid 6496] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6497] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6496] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6497] <... futex resumed>) = 1 [pid 6496] <... futex resumed>) = 1 [pid 6494] <... futex resumed>) = 0 [pid 6489] <... futex resumed>) = 0 [pid 6497] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6496] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6494] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6496] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6494] <... futex resumed>) = 0 [pid 6496] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6494] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6496] <... openat resumed>) = 4 [pid 6496] write(4, "5", 1) = 1 [pid 6496] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6496] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6494] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6494] exit_group(0) = ? [pid 6493] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [ 224.233875][ T6490] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 224.233904][ T6490] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 224.233919][ T6490] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 224.233934][ T6490] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 224.233948][ T6490] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 224.233963][ T6490] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 224.295515][ T6490] [ 224.301531][ T6492] CPU: 1 PID: 6492 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 224.312250][ T6492] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 224.322321][ T6492] Call Trace: [ 224.325706][ T6492] [ 224.328648][ T6492] dump_stack_lvl+0xcd/0x134 [ 224.333269][ T6492] should_fail.cold+0x5/0xa [ 224.337794][ T6492] get_futex_key+0x5b2/0x1c50 [ 224.342500][ T6492] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 224.348504][ T6492] ? futex_setup_timer+0xf0/0xf0 [ 224.353500][ T6492] futex_wake+0xe4/0x490 [ 224.357779][ T6492] ? futex_wake_mark+0x1a0/0x1a0 [ 224.362843][ T6492] ? ptrace_stop.part.0+0x5ec/0xa80 [ 224.368079][ T6492] ? do_raw_spin_lock+0x120/0x2a0 [ 224.373229][ T6492] ? rwlock_bug.part.0+0x90/0x90 [ 224.378204][ T6492] ? _raw_spin_lock_irq+0x41/0x50 [ 224.383277][ T6492] do_futex+0x266/0x300 [ 224.387500][ T6492] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 224.393430][ T6492] ? find_held_lock+0x2d/0x110 [ 224.398239][ T6492] __x64_sys_futex+0x1b0/0x4a0 [ 224.403036][ T6492] ? do_futex+0x300/0x300 [ 224.407394][ T6492] ? _raw_spin_unlock_irq+0x1f/0x40 [ 224.412620][ T6492] ? lockdep_hardirqs_on+0x79/0x100 [ 224.417842][ T6492] ? _raw_spin_unlock_irq+0x2a/0x40 [ 224.423072][ T6492] ? ptrace_notify+0xfa/0x140 [ 224.427771][ T6492] do_syscall_64+0x35/0xb0 [ 224.432214][ T6492] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 224.438129][ T6492] RIP: 0033:0x7fc128117db9 [ 224.442558][ T6492] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 224.462267][ T6492] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 224.470693][ T6492] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 224.478675][ T6492] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 224.486656][ T6492] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 224.494826][ T6492] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [pid 6491] sendto(3, "\x01", 1, 0, NULL, 0./strace-static-x86_64: Process 6495 attached [pid 6493] <... futex resumed>) = 0 [pid 6489] exit_group(0 [pid 6497] <... futex resumed>) = ? [pid 6489] <... exit_group resumed>) = ? [pid 6497] +++ exited with 0 +++ [ 224.502799][ T6492] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 224.510796][ T6492] [ 224.514316][ T6496] CPU: 0 PID: 6496 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 224.524853][ T6496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 224.534925][ T6496] Call Trace: [ 224.538216][ T6496] [ 224.541194][ T6496] dump_stack_lvl+0xcd/0x134 [ 224.545808][ T6496] should_fail.cold+0x5/0xa [pid 6495] set_robust_list(0x5555564f35e0, 24 [pid 6491] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6495] <... set_robust_list resumed>) = 0 [pid 6493] +++ exited with 0 +++ [pid 6491] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6489] +++ exited with 0 +++ [pid 6495] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6491] <... futex resumed>) = 0 [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6489, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 6495] <... prctl resumed>) = 0 [pid 6491] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6487] exit_group(0 [pid 6495] setpgid(0, 0 [pid 6491] <... futex resumed>) = ? [pid 6487] <... exit_group resumed>) = ? [pid 6495] <... setpgid resumed>) = 0 [pid 6491] +++ exited with 0 +++ [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3608] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6499 [pid 6495] write(3, "1000", 4) = 4 [ 224.550339][ T6496] get_futex_key+0x5b2/0x1c50 [ 224.555034][ T6496] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 224.561032][ T6496] ? futex_setup_timer+0xf0/0xf0 [ 224.566009][ T6496] futex_wake+0xe4/0x490 [ 224.570284][ T6496] ? futex_wake_mark+0x1a0/0x1a0 [ 224.575248][ T6496] ? ptrace_stop.part.0+0x5ec/0xa80 [ 224.580473][ T6496] ? do_raw_spin_lock+0x120/0x2a0 [ 224.585538][ T6496] ? rwlock_bug.part.0+0x90/0x90 [ 224.590516][ T6496] ? _raw_spin_lock_irq+0x41/0x50 [ 224.595579][ T6496] do_futex+0x266/0x300 [ 224.599753][ T6496] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 224.605658][ T6496] ? find_held_lock+0x2d/0x110 [ 224.610461][ T6496] __x64_sys_futex+0x1b0/0x4a0 [ 224.615258][ T6496] ? do_futex+0x300/0x300 [ 224.619617][ T6496] ? _raw_spin_unlock_irq+0x1f/0x40 [ 224.624853][ T6496] ? lockdep_hardirqs_on+0x79/0x100 [ 224.630077][ T6496] ? _raw_spin_unlock_irq+0x2a/0x40 [ 224.635295][ T6496] ? ptrace_notify+0xfa/0x140 [ 224.640004][ T6496] do_syscall_64+0x35/0xb0 [ 224.644446][ T6496] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 224.650364][ T6496] RIP: 0033:0x7fc128117db9 [ 224.654801][ T6496] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 224.674459][ T6496] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 224.682921][ T6496] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 224.691008][ T6496] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [pid 6495] close(3) = 0 [pid 6495] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6495] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6495] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6495] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6500], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6500 [pid 6495] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6495] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6500 attached [pid 6500] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6500] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6500] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6495] <... futex resumed>) = 0 [pid 6500] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6495] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6500] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6495] <... futex resumed>) = 0 [pid 6500] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6495] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6500] <... setsockopt resumed>) = 0 [pid 6500] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6495] <... futex resumed>) = 0 [pid 6500] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6495] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6500] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6495] <... futex resumed>) = 0 [pid 6500] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6495] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6500] <... setsockopt resumed>) = 0 [pid 6500] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6495] <... futex resumed>) = 0 [pid 6500] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6495] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6500] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6495] <... futex resumed>) = 0 [pid 6500] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6495] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6500] <... setsockopt resumed>) = 0 [pid 6500] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6495] <... futex resumed>) = 0 [pid 6500] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6495] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6500] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6495] <... futex resumed>) = 0 [pid 6500] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6495] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6500] <... sendto resumed>) = 1 [pid 6500] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6495] <... futex resumed>) = 0 [pid 6500] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6495] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6500] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6495] <... futex resumed>) = 0 [pid 6500] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6495] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6500] <... sendto resumed>) = 1 [pid 6500] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6495] <... futex resumed>) = 0 [pid 6500] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6495] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6500] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6495] <... futex resumed>) = 0 [pid 6500] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6495] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6500] <... openat resumed>) = 4 [pid 6500] write(4, "5", 1) = 1 [pid 6500] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6500] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6495] <... futex resumed>) = 0 [pid 6500] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6495] exit_group(0 [pid 6500] <... futex resumed>) = ? [pid 6495] <... exit_group resumed>) = ? [pid 6500] +++ exited with 0 +++ [pid 6495] +++ exited with 0 +++ [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6495, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6501 ./strace-static-x86_64: Process 6501 attached [pid 6501] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6501] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6501] setpgid(0, 0) = 0 [pid 6501] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6501] write(3, "1000", 4) = 4 [pid 6501] close(3) = 0 [pid 6501] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6501] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6501] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6501] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6502], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6502 [pid 6501] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6501] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6502 attached [pid 6502] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6502] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6502] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6501] <... futex resumed>) = 0 [pid 6502] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6501] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6502] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6501] <... futex resumed>) = 0 [pid 6502] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6501] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6502] <... setsockopt resumed>) = 0 [pid 6502] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6501] <... futex resumed>) = 0 [pid 6502] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6501] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6502] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6501] <... futex resumed>) = 0 [pid 6502] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6501] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6502] <... setsockopt resumed>) = 0 [pid 6502] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6501] <... futex resumed>) = 0 [pid 6502] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6501] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6502] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6501] <... futex resumed>) = 0 [pid 6502] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [ 224.699002][ T6496] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 224.706989][ T6496] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 224.715271][ T6496] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 224.723284][ T6496] [ 224.731854][ T6498] CPU: 1 PID: 6498 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 224.742391][ T6498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 224.752443][ T6498] Call Trace: [ 224.755731][ T6498] [ 224.758662][ T6498] dump_stack_lvl+0xcd/0x134 [ 224.763262][ T6498] should_fail.cold+0x5/0xa [ 224.767768][ T6498] get_futex_key+0x5b2/0x1c50 [ 224.772447][ T6498] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 224.778436][ T6498] ? futex_setup_timer+0xf0/0xf0 [ 224.783380][ T6498] futex_wake+0xe4/0x490 [ 224.787629][ T6498] ? futex_wake_mark+0x1a0/0x1a0 [ 224.792568][ T6498] ? ptrace_stop.part.0+0x5ec/0xa80 [ 224.797857][ T6498] ? do_raw_spin_lock+0x120/0x2a0 [ 224.802893][ T6498] ? rwlock_bug.part.0+0x90/0x90 [ 224.807830][ T6498] ? _raw_spin_lock_irq+0x41/0x50 [ 224.812863][ T6498] do_futex+0x266/0x300 [ 224.817036][ T6498] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 224.822933][ T6498] ? find_held_lock+0x2d/0x110 [ 224.827708][ T6498] __x64_sys_futex+0x1b0/0x4a0 [ 224.832477][ T6498] ? do_futex+0x300/0x300 [ 224.836805][ T6498] ? _raw_spin_unlock_irq+0x1f/0x40 [ 224.842010][ T6498] ? lockdep_hardirqs_on+0x79/0x100 [ 224.847217][ T6498] ? _raw_spin_unlock_irq+0x2a/0x40 [ 224.852428][ T6498] ? ptrace_notify+0xfa/0x140 [ 224.857111][ T6498] do_syscall_64+0x35/0xb0 [ 224.861531][ T6498] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 224.867432][ T6498] RIP: 0033:0x7fc128117db9 [ 224.871925][ T6498] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 224.891554][ T6498] RSP: 002b:00007fc1280a82e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [pid 6501] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6499 attached [pid 6502] <... setsockopt resumed>) = 0 [pid 6501] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6502] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6501] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6499] set_robust_list(0x5555564f35e0, 24 [pid 6502] <... futex resumed>) = 0 [pid 6501] <... futex resumed>) = 0 [pid 6499] <... set_robust_list resumed>) = 0 [pid 6502] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6501] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6499] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6502] <... sendto resumed>) = 1 [pid 6499] <... prctl resumed>) = 0 [pid 6502] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6499] setpgid(0, 0 [pid 6502] <... futex resumed>) = 1 [pid 6501] <... futex resumed>) = 0 [pid 6499] <... setpgid resumed>) = 0 [pid 6502] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6501] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6502] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6501] <... futex resumed>) = 0 [pid 6499] <... openat resumed>) = 3 [pid 6502] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6501] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6499] write(3, "1000", 4 [pid 6502] <... sendto resumed>) = 1 [pid 6499] <... write resumed>) = 4 [pid 6502] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6499] close(3 [pid 6502] <... futex resumed>) = 1 [pid 6501] <... futex resumed>) = 0 [pid 6499] <... close resumed>) = 0 [pid 6502] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6501] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6499] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6502] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6501] <... futex resumed>) = 0 [pid 6499] <... futex resumed>) = 0 [ 224.900010][ T6498] RAX: ffffffffffffffda RBX: 00007fc1281a04b0 RCX: 00007fc128117db9 [ 224.908004][ T6498] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04bc [ 224.915996][ T6498] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 224.923992][ T6498] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280a82f0 [ 224.931983][ T6498] R13: 00007fc1281a04b8 R14: 0100000000000000 R15: 0000000000000001 [ 224.939987][ T6498] [pid 6502] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6501] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6499] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6502] <... openat resumed>) = 4 [pid 6499] <... mmap resumed>) = 0x7fc1280a9000 [pid 6502] write(4, "5", 1 [pid 6499] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6502] <... write resumed>) = 1 [pid 6499] <... mprotect resumed>) = 0 [pid 6502] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6499] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6502] <... setsockopt resumed>) = 0 [pid 6502] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6501] <... futex resumed>) = 0 [pid 6499] <... clone resumed>, parent_tid=[6503], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6503 [pid 6502] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6501] exit_group(0 [pid 6499] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6503 attached [pid 6502] <... futex resumed>) = ? [pid 6501] <... exit_group resumed>) = ? [pid 6499] <... futex resumed>) = 0 [pid 6503] set_robust_list(0x7fc1280c99e0, 24 [pid 6502] +++ exited with 0 +++ [pid 6501] +++ exited with 0 +++ [pid 6499] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6503] <... set_robust_list resumed>) = 0 [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6501, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 6503] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6503] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6503] <... futex resumed>) = 1 [pid 6499] <... futex resumed>) = 0 [pid 6503] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6499] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3610] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6504 ./strace-static-x86_64: Process 6504 attached [pid 6503] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6499] <... futex resumed>) = 0 [pid 6503] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6499] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6504] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6503] <... setsockopt resumed>) = 0 [pid 6504] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6503] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6504] <... prctl resumed>) = 0 [pid 6503] <... futex resumed>) = 1 [pid 6499] <... futex resumed>) = 0 [pid 6504] setpgid(0, 0 [pid 6503] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6499] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6504] <... setpgid resumed>) = 0 [pid 6503] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6499] <... futex resumed>) = 0 [pid 6504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6503] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6499] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6504] <... openat resumed>) = 3 [pid 6503] <... setsockopt resumed>) = 0 [pid 6504] write(3, "1000", 4 [pid 6503] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6504] <... write resumed>) = 4 [pid 6503] <... futex resumed>) = 1 [pid 6499] <... futex resumed>) = 0 [pid 6504] close(3 [pid 6503] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6499] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6504] <... close resumed>) = 0 [pid 6503] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6499] <... futex resumed>) = 0 [pid 6504] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6503] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6499] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6504] <... futex resumed>) = 0 [pid 6503] <... setsockopt resumed>) = 0 [pid 6504] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6503] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6504] <... mmap resumed>) = 0x7fc1280a9000 [pid 6503] <... futex resumed>) = 1 [pid 6499] <... futex resumed>) = 0 [pid 6504] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6503] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6499] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6504] <... mprotect resumed>) = 0 [pid 6503] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6499] <... futex resumed>) = 0 [pid 6504] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6503] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6499] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6503] <... sendto resumed>) = 1 [pid 6504] <... clone resumed>, parent_tid=[6505], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6505 [pid 6503] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6504] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6503] <... futex resumed>) = 1 [pid 6499] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6505 attached [pid 6504] <... futex resumed>) = 0 [pid 6503] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6499] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6505] set_robust_list(0x7fc1280c99e0, 24 [pid 6504] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6503] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6499] <... futex resumed>) = 0 [pid 6505] <... set_robust_list resumed>) = 0 [pid 6503] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6499] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6505] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6503] <... sendto resumed>) = 1 [pid 6505] <... socket resumed>) = 3 [pid 6503] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6505] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6503] <... futex resumed>) = 1 [pid 6499] <... futex resumed>) = 0 [pid 6505] <... futex resumed>) = 1 [pid 6504] <... futex resumed>) = 0 [pid 6503] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6499] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6505] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6504] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6503] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6499] <... futex resumed>) = 0 [pid 6505] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6504] <... futex resumed>) = 0 [pid 6503] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6499] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6505] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6504] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6503] <... openat resumed>) = 4 [pid 6505] <... setsockopt resumed>) = 0 [pid 6503] write(4, "5", 1 [pid 6505] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6503] <... write resumed>) = 1 [pid 6505] <... futex resumed>) = 1 [pid 6504] <... futex resumed>) = 0 [pid 6503] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6505] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6504] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6503] <... setsockopt resumed>) = 0 [pid 6505] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6504] <... futex resumed>) = 0 [pid 6503] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6505] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6504] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6503] <... futex resumed>) = 1 [pid 6499] <... futex resumed>) = 0 [pid 6505] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6503] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6499] exit_group(0 [pid 6505] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6503] <... futex resumed>) = ? [pid 6499] <... exit_group resumed>) = ? [pid 6505] <... futex resumed>) = 1 [pid 6504] <... futex resumed>) = 0 [pid 6503] +++ exited with 0 +++ [pid 6499] +++ exited with 0 +++ [pid 6505] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6504] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6505] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6504] <... futex resumed>) = 0 [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6499, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6505] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6504] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3608] restart_syscall(<... resuming interrupted clone ...> [pid 6505] <... setsockopt resumed>) = 0 [pid 3608] <... restart_syscall resumed>) = 0 [pid 6505] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6504] <... futex resumed>) = 0 [pid 6505] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6504] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6505] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6504] <... futex resumed>) = 0 [pid 6505] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6504] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3608] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6506 [pid 6505] <... sendto resumed>) = 1 [pid 6505] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6506 attached ) = 1 [pid 6504] <... futex resumed>) = 0 [pid 6506] set_robust_list(0x5555564f35e0, 24 [pid 6505] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6504] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6506] <... set_robust_list resumed>) = 0 [pid 6505] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6504] <... futex resumed>) = 0 [pid 6506] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6505] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6504] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6506] <... prctl resumed>) = 0 [pid 6505] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6506] setpgid(0, 0 [pid 6505] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6506] <... setpgid resumed>) = 0 [pid 6505] <... futex resumed>) = 1 [pid 6504] <... futex resumed>) = 0 [pid 6506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6505] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6504] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6506] <... openat resumed>) = 3 [pid 6505] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6504] <... futex resumed>) = 0 [pid 6506] write(3, "1000", 4 [pid 6505] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6504] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6506] <... write resumed>) = 4 [pid 6505] <... openat resumed>) = 4 [pid 6506] close(3 [pid 6505] write(4, "5", 1 [pid 6492] <... futex resumed>) = ? [pid 6506] <... close resumed>) = 0 [pid 6505] <... write resumed>) = 1 [pid 6506] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6505] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6506] <... futex resumed>) = 0 [pid 6505] <... setsockopt resumed>) = 0 [pid 6492] +++ exited with 0 +++ [pid 6488] +++ exited with 0 +++ [pid 6506] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6505] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6490] <... futex resumed>) = ? [pid 6506] <... mmap resumed>) = 0x7fc1280a9000 [pid 6490] +++ exited with 0 +++ [pid 6485] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6488, si_uid=0, si_status=0, si_utime=0, si_stime=26} --- [pid 6506] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6485, si_uid=0, si_status=0, si_utime=0, si_stime=27} --- [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 6506] <... mprotect resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 6506] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6507], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6507 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6506] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6508 ./strace-static-x86_64: Process 6509 attached ./strace-static-x86_64: Process 6507 attached [pid 6506] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6509] set_robust_list(0x5555564f35e0, 24 [pid 6507] set_robust_list(0x7fc1280c99e0, 24 [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6509 ./strace-static-x86_64: Process 6508 attached [pid 6509] <... set_robust_list resumed>) = 0 [pid 6507] <... set_robust_list resumed>) = 0 [pid 6509] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6508] set_robust_list(0x5555564f35e0, 24 [pid 6507] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6509] <... prctl resumed>) = 0 [pid 6508] <... set_robust_list resumed>) = 0 [pid 6507] <... socket resumed>) = 3 [pid 6509] setpgid(0, 0 [pid 6508] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6507] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6509] <... setpgid resumed>) = 0 [pid 6508] <... prctl resumed>) = 0 [pid 6507] <... futex resumed>) = 1 [pid 6506] <... futex resumed>) = 0 [ 225.122127][ T6505] FAULT_INJECTION: forcing a failure. [ 225.122127][ T6505] name fail_futex, interval 1, probability 0, space 0, times 0 [ 225.157618][ T6505] CPU: 1 PID: 6505 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 225.168354][ T6505] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 225.178422][ T6505] Call Trace: [ 225.181718][ T6505] [ 225.184651][ T6505] dump_stack_lvl+0xcd/0x134 [ 225.189283][ T6505] should_fail.cold+0x5/0xa [ 225.193806][ T6505] get_futex_key+0x5b2/0x1c50 [ 225.198498][ T6505] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 225.204494][ T6505] ? futex_setup_timer+0xf0/0xf0 [ 225.209448][ T6505] futex_wake+0xe4/0x490 [ 225.213716][ T6505] ? futex_wake_mark+0x1a0/0x1a0 [ 225.218659][ T6505] ? ptrace_stop.part.0+0x5ec/0xa80 [ 225.223863][ T6505] ? do_raw_spin_lock+0x120/0x2a0 [ 225.228910][ T6505] ? rwlock_bug.part.0+0x90/0x90 [ 225.234144][ T6505] ? _raw_spin_lock_irq+0x41/0x50 [ 225.239214][ T6505] do_futex+0x266/0x300 [ 225.243389][ T6505] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 225.249311][ T6505] ? find_held_lock+0x2d/0x110 [ 225.254104][ T6505] __x64_sys_futex+0x1b0/0x4a0 [ 225.258900][ T6505] ? do_futex+0x300/0x300 [ 225.263236][ T6505] ? _raw_spin_unlock_irq+0x1f/0x40 [ 225.268453][ T6505] ? lockdep_hardirqs_on+0x79/0x100 [ 225.273677][ T6505] ? _raw_spin_unlock_irq+0x2a/0x40 [ 225.278912][ T6505] ? ptrace_notify+0xfa/0x140 [ 225.283612][ T6505] do_syscall_64+0x35/0xb0 [ 225.288037][ T6505] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 225.293941][ T6505] RIP: 0033:0x7fc128117db9 [ 225.298361][ T6505] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [pid 6509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6508] setpgid(0, 0 [pid 6507] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6506] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6504] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6496] <... futex resumed>) = ? [pid 6509] <... openat resumed>) = 3 [pid 6508] <... setpgid resumed>) = 0 [pid 6507] <... setsockopt resumed>) = 0 [pid 6506] <... futex resumed>) = 0 [pid 6504] exit_group(0 [pid 6509] write(3, "1000", 4 [pid 6508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6507] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6506] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6504] <... exit_group resumed>) = ? [pid 6496] +++ exited with 0 +++ [pid 6494] +++ exited with 0 +++ [pid 6509] <... write resumed>) = 4 [pid 6508] <... openat resumed>) = 3 [pid 6507] <... futex resumed>) = 0 [pid 6506] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6494, si_uid=0, si_status=0, si_utime=0, si_stime=27} --- [pid 6509] close(3 [pid 6508] write(3, "1000", 4 [pid 6507] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6506] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3614] restart_syscall(<... resuming interrupted clone ...> [pid 6509] <... close resumed>) = 0 [pid 6508] <... write resumed>) = 4 [pid 6507] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6506] <... futex resumed>) = 0 [pid 3614] <... restart_syscall resumed>) = 0 [pid 6509] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6508] close(3 [pid 6507] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6506] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6509] <... futex resumed>) = 0 [pid 6508] <... close resumed>) = 0 [pid 6507] <... setsockopt resumed>) = 0 [pid 6509] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6508] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6507] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6509] <... mmap resumed>) = 0x7fc1280a9000 [pid 6508] <... futex resumed>) = 0 [pid 6507] <... futex resumed>) = 1 [pid 6506] <... futex resumed>) = 0 [pid 6509] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6508] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6507] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6506] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3614] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6510 ./strace-static-x86_64: Process 6510 attached [pid 6509] <... mprotect resumed>) = 0 [pid 6508] <... mmap resumed>) = 0x7fc1280a9000 [pid 6507] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6506] <... futex resumed>) = 0 [pid 6510] set_robust_list(0x5555564f35e0, 24 [pid 6509] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6508] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6507] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6506] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6510] <... set_robust_list resumed>) = 0 [pid 6508] <... mprotect resumed>) = 0 [pid 6507] <... setsockopt resumed>) = 0 [pid 6510] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6509] <... clone resumed>, parent_tid=[6511], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6511 [pid 6508] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6507] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6511 attached [pid 6510] <... prctl resumed>) = 0 [ 225.318106][ T6505] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 225.326532][ T6505] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 225.334522][ T6505] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 225.342519][ T6505] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 225.350495][ T6505] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 225.358482][ T6505] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 225.366480][ T6505] [pid 6509] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6507] <... futex resumed>) = 1 [pid 6506] <... futex resumed>) = 0 [pid 6511] set_robust_list(0x7fc1280c99e0, 24 [pid 6510] setpgid(0, 0 [pid 6509] <... futex resumed>) = 0 [pid 6508] <... clone resumed>, parent_tid=[6512], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6512 [pid 6507] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6506] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6512 attached [pid 6511] <... set_robust_list resumed>) = 0 [pid 6510] <... setpgid resumed>) = 0 [pid 6509] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6508] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6507] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6506] <... futex resumed>) = 0 [pid 6512] set_robust_list(0x7fc1280c99e0, 24 [pid 6511] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6508] <... futex resumed>) = 0 [pid 6507] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6506] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6512] <... set_robust_list resumed>) = 0 [pid 6511] <... socket resumed>) = 3 [pid 6510] <... openat resumed>) = 3 [pid 6508] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6512] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6512] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6511] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6510] write(3, "1000", 4 [pid 6508] <... futex resumed>) = 0 [pid 6512] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6511] <... futex resumed>) = 1 [pid 6510] <... write resumed>) = 4 [pid 6509] <... futex resumed>) = 0 [pid 6508] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6507] <... sendto resumed>) = 1 [pid 6512] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6511] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6510] close(3 [pid 6509] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6508] <... futex resumed>) = 0 [pid 6507] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6512] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6511] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6510] <... close resumed>) = 0 [pid 6509] <... futex resumed>) = 0 [pid 6508] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6507] <... futex resumed>) = 1 [pid 6506] <... futex resumed>) = 0 [pid 6512] <... setsockopt resumed>) = 0 [pid 6511] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6510] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6509] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6507] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6506] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6512] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6511] <... setsockopt resumed>) = 0 [pid 6510] <... futex resumed>) = 0 [pid 6507] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6506] <... futex resumed>) = 0 [pid 6512] <... futex resumed>) = 1 [pid 6511] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6510] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6508] <... futex resumed>) = 0 [pid 6507] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6506] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6512] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6511] <... futex resumed>) = 1 [pid 6510] <... mmap resumed>) = 0x7fc1280a9000 [pid 6509] <... futex resumed>) = 0 [pid 6508] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6507] <... sendto resumed>) = 1 [pid 6512] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6511] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6510] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6509] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6508] <... futex resumed>) = 0 [pid 6507] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6512] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6511] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6510] <... mprotect resumed>) = 0 [pid 6509] <... futex resumed>) = 0 [pid 6508] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6507] <... futex resumed>) = 1 [pid 6506] <... futex resumed>) = 0 [pid 6512] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6511] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6510] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6509] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6507] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6506] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6512] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6511] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6507] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6506] <... futex resumed>) = 0 [pid 6512] <... futex resumed>) = 1 [pid 6511] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6510] <... clone resumed>, parent_tid=[6513], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6513 [pid 6508] <... futex resumed>) = 0 [pid 6507] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6506] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6513 attached [pid 6512] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6511] <... futex resumed>) = 1 [pid 6510] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6509] <... futex resumed>) = 0 [pid 6508] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6507] <... openat resumed>) = 4 [pid 6513] set_robust_list(0x7fc1280c99e0, 24 [pid 6512] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6511] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6510] <... futex resumed>) = 0 [pid 6509] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6508] <... futex resumed>) = 0 [pid 6507] write(4, "5", 1 [pid 6513] <... set_robust_list resumed>) = 0 [pid 6512] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6511] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6510] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6509] <... futex resumed>) = 0 [pid 6508] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6507] <... write resumed>) = 1 [pid 6513] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6512] <... setsockopt resumed>) = 0 [pid 6511] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6509] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6507] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6513] <... socket resumed>) = 3 [pid 6512] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6511] <... setsockopt resumed>) = 0 [pid 6507] <... setsockopt resumed>) = 0 [pid 6513] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6512] <... futex resumed>) = 1 [pid 6511] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6508] <... futex resumed>) = 0 [pid 6507] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6513] <... futex resumed>) = 1 [pid 6512] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6511] <... futex resumed>) = 1 [pid 6510] <... futex resumed>) = 0 [pid 6509] <... futex resumed>) = 0 [pid 6508] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6507] <... futex resumed>) = 1 [pid 6506] <... futex resumed>) = 0 [pid 6513] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6512] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6511] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6510] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6509] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6508] <... futex resumed>) = 0 [pid 6507] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6506] exit_group(0 [pid 6513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6512] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6511] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6510] <... futex resumed>) = 0 [pid 6509] <... futex resumed>) = 0 [pid 6508] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6507] <... futex resumed>) = ? [pid 6506] <... exit_group resumed>) = ? [pid 6513] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6512] <... sendto resumed>) = 1 [pid 6511] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6510] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6509] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6507] +++ exited with 0 +++ [pid 6513] <... setsockopt resumed>) = 0 [pid 6512] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6513] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6512] <... futex resumed>) = 1 [pid 6511] <... sendto resumed>) = 1 [pid 6508] <... futex resumed>) = 0 [pid 6513] <... futex resumed>) = 1 [pid 6512] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6511] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6510] <... futex resumed>) = 0 [pid 6508] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6506] +++ exited with 0 +++ [pid 6513] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6512] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6511] <... futex resumed>) = 1 [pid 6510] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6509] <... futex resumed>) = 0 [pid 6508] <... futex resumed>) = 0 [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6506, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6512] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6511] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6510] <... futex resumed>) = 0 [pid 6509] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6508] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6513] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6512] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6511] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6510] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6509] <... futex resumed>) = 0 [pid 6513] <... setsockopt resumed>) = 0 [pid 6512] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6511] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6509] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6513] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6512] <... futex resumed>) = 1 [pid 6511] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6508] <... futex resumed>) = 0 [pid 6513] <... futex resumed>) = 1 [pid 6512] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6511] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6510] <... futex resumed>) = 0 [pid 6508] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6513] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6512] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6511] <... futex resumed>) = 1 [pid 6510] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6509] <... futex resumed>) = 0 [pid 6508] <... futex resumed>) = 0 [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6512] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6511] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6510] <... futex resumed>) = 0 [pid 6509] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6508] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6513] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6512] <... openat resumed>) = 4 [pid 6511] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6510] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6509] <... futex resumed>) = 0 [pid 3608] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6514 ./strace-static-x86_64: Process 6514 attached [pid 6513] <... setsockopt resumed>) = 0 [pid 6512] write(4, "5", 1 [pid 6511] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6509] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6514] set_robust_list(0x5555564f35e0, 24 [pid 6513] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6512] <... write resumed>) = 1 [pid 6511] <... openat resumed>) = 4 [pid 6514] <... set_robust_list resumed>) = 0 [pid 6513] <... futex resumed>) = 1 [pid 6512] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6511] write(4, "5", 1 [pid 6510] <... futex resumed>) = 0 [pid 6514] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6513] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6512] <... setsockopt resumed>) = 0 [pid 6511] <... write resumed>) = 1 [pid 6510] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6514] <... prctl resumed>) = 0 [pid 6513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6512] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6511] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6510] <... futex resumed>) = 0 [pid 6498] <... futex resumed>) = ? [ 225.495048][ T6512] FAULT_INJECTION: forcing a failure. [ 225.495048][ T6512] name fail_futex, interval 1, probability 0, space 0, times 0 [ 225.508820][ T6512] CPU: 1 PID: 6512 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 225.516340][ T6511] FAULT_INJECTION: forcing a failure. [ 225.516340][ T6511] name fail_futex, interval 1, probability 0, space 0, times 0 [ 225.519346][ T6512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 225.542187][ T6512] Call Trace: [pid 6514] setpgid(0, 0 [pid 6513] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6511] <... setsockopt resumed>) = 0 [pid 6510] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6505] <... futex resumed>) = ? [pid 6498] +++ exited with 0 +++ [pid 6487] +++ exited with 0 +++ [pid 6514] <... setpgid resumed>) = 0 [pid 6513] <... sendto resumed>) = 1 [pid 6511] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6513] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6514] <... openat resumed>) = 3 [pid 6513] <... futex resumed>) = 1 [pid 6510] <... futex resumed>) = 0 [pid 6514] write(3, "1000", 4 [pid 6513] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6510] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6514] <... write resumed>) = 4 [pid 6513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6510] <... futex resumed>) = 0 [pid 6514] close(3 [pid 6513] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6510] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6514] <... close resumed>) = 0 [pid 6513] <... sendto resumed>) = 1 [pid 6514] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6513] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6514] <... futex resumed>) = 0 [pid 6513] <... futex resumed>) = 1 [pid 6510] <... futex resumed>) = 0 [pid 6514] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6513] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6510] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6514] <... mmap resumed>) = 0x7fc1280a9000 [pid 6513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6510] <... futex resumed>) = 0 [pid 6514] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6513] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6510] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6514] <... mprotect resumed>) = 0 [pid 6513] <... openat resumed>) = 4 [pid 6514] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6513] write(4, "5", 1) = 1 [pid 6514] <... clone resumed>, parent_tid=[6515], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6515 [pid 6513] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6514] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6513] <... setsockopt resumed>) = 0 [pid 6509] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6514] <... futex resumed>) = 0 [pid 6513] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6509] exit_group(0 [pid 6514] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6513] <... futex resumed>) = 1 [pid 6510] <... futex resumed>) = 0 [pid 6509] <... exit_group resumed>) = ? [pid 6513] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6510] exit_group(0 [pid 6513] <... futex resumed>) = ? [pid 6510] <... exit_group resumed>) = ? [pid 6513] +++ exited with 0 +++ [pid 6510] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6510, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6516 [pid 6514] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 225.545489][ T6512] [ 225.548435][ T6512] dump_stack_lvl+0xcd/0x134 [ 225.553050][ T6512] should_fail.cold+0x5/0xa [ 225.557571][ T6512] get_futex_key+0x5b2/0x1c50 [ 225.562269][ T6512] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 225.568282][ T6512] ? futex_setup_timer+0xf0/0xf0 [ 225.573263][ T6512] futex_wake+0xe4/0x490 [ 225.577536][ T6512] ? futex_wake_mark+0x1a0/0x1a0 [ 225.582486][ T6512] ? ptrace_stop.part.0+0x5ec/0xa80 [ 225.587700][ T6512] ? do_raw_spin_lock+0x120/0x2a0 [pid 6514] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6514] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc128088000 [pid 6514] mprotect(0x7fc128089000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6514] clone(child_stack=0x7fc1280a83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6517], tls=0x7fc1280a8700, child_tidptr=0x7fc1280a89d0) = 6517 [pid 6514] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 225.592740][ T6512] ? rwlock_bug.part.0+0x90/0x90 [ 225.597788][ T6512] ? _raw_spin_lock_irq+0x41/0x50 [ 225.602832][ T6512] do_futex+0x266/0x300 [ 225.607007][ T6512] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 225.612935][ T6512] ? find_held_lock+0x2d/0x110 [ 225.617739][ T6512] __x64_sys_futex+0x1b0/0x4a0 [ 225.622525][ T6512] ? do_futex+0x300/0x300 [ 225.626855][ T6512] ? _raw_spin_unlock_irq+0x1f/0x40 [ 225.632059][ T6512] ? lockdep_hardirqs_on+0x79/0x100 [ 225.637282][ T6512] ? _raw_spin_unlock_irq+0x2a/0x40 [ 225.642483][ T6512] ? ptrace_notify+0xfa/0x140 [ 225.647167][ T6512] do_syscall_64+0x35/0xb0 [ 225.651589][ T6512] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 225.657489][ T6512] RIP: 0033:0x7fc128117db9 [ 225.661907][ T6512] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 225.681522][ T6512] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [pid 6514] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6487, si_uid=0, si_status=0, si_utime=0, si_stime=31} --- [pid 6514] futex(0x7fc1281a04cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6508] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) ./strace-static-x86_64: Process 6517 attached ./strace-static-x86_64: Process 6516 attached ./strace-static-x86_64: Process 6515 attached [pid 6514] <... futex resumed>) = 0 [pid 6505] +++ exited with 0 +++ [pid 6504] +++ exited with 0 +++ [pid 6517] set_robust_list(0x7fc1280a89e0, 24 [pid 6514] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6504, si_uid=0, si_status=0, si_utime=0, si_stime=23} --- [pid 6517] <... set_robust_list resumed>) = 0 [pid 6514] <... mmap resumed>) = 0x7fc128067000 [ 225.689937][ T6512] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 225.697912][ T6512] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 225.706936][ T6512] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 225.714904][ T6512] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 225.722878][ T6512] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 225.730884][ T6512] [pid 6517] setsockopt(-1, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6514] mprotect(0x7fc128068000, 131072, PROT_READ|PROT_WRITE [pid 6517] <... setsockopt resumed>) = -1 EBADF (Bad file descriptor) [pid 6514] <... mprotect resumed>) = 0 [pid 6517] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6514] clone(child_stack=0x7fc1280873f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6517] <... futex resumed>) = 0 [pid 6517] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6514] <... clone resumed>, parent_tid=[6518], tls=0x7fc128087700, child_tidptr=0x7fc1280879d0) = 6518 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6514] futex(0x7fc1281a04c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3610] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6519 [pid 6514] futex(0x7fc1281a04cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6519 attached ./strace-static-x86_64: Process 6518 attached [pid 6519] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6518] set_robust_list(0x7fc1280879e0, 24 [pid 6519] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6518] <... set_robust_list resumed>) = 0 [pid 6519] <... prctl resumed>) = 0 [pid 6518] setsockopt(-1, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6519] setpgid(0, 0 [pid 6518] <... setsockopt resumed>) = -1 EBADF (Bad file descriptor) [pid 6519] <... setpgid resumed>) = 0 [pid 6518] futex(0x7fc1281a04cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6519] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6518] <... futex resumed>) = 1 [pid 6514] <... futex resumed>) = 0 [pid 6519] <... openat resumed>) = 3 [pid 6518] futex(0x7fc1281a04c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6514] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6519] write(3, "1000", 4 [pid 6517] <... futex resumed>) = 0 [pid 6514] <... futex resumed>) = 1 [pid 6519] <... write resumed>) = 4 [pid 6517] setsockopt(-1, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6514] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6519] close(3 [pid 6517] <... setsockopt resumed>) = -1 EBADF (Bad file descriptor) [pid 6519] <... close resumed>) = 0 [pid 6517] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6519] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6517] <... futex resumed>) = 1 [pid 6514] <... futex resumed>) = 0 [pid 6519] <... futex resumed>) = 0 [pid 6517] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6514] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6519] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6517] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6514] <... futex resumed>) = 0 [pid 6519] <... mmap resumed>) = 0x7fc1280a9000 [pid 6517] sendto(-1, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6514] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6519] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6517] <... sendto resumed>) = -1 EBADF (Bad file descriptor) [pid 6519] <... mprotect resumed>) = 0 [pid 6517] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6519] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6517] <... futex resumed>) = 1 [pid 6514] <... futex resumed>) = 0 [pid 6517] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6514] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6519] <... clone resumed>, parent_tid=[6520], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6520 [pid 6517] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6514] <... futex resumed>) = 0 [pid 6519] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6517] sendto(-1, "\x01", 1, 0, NULL, 0 [pid 6514] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6519] <... futex resumed>) = 0 [pid 6517] <... sendto resumed>) = -1 EBADF (Bad file descriptor) [ 225.738533][ T6511] CPU: 1 PID: 6511 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 225.749085][ T6511] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 225.759169][ T6511] Call Trace: [ 225.762466][ T6511] [ 225.765417][ T6511] dump_stack_lvl+0xcd/0x134 [ 225.770042][ T6511] should_fail.cold+0x5/0xa [ 225.774578][ T6511] get_futex_key+0x5b2/0x1c50 [ 225.779298][ T6511] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 225.785317][ T6511] ? futex_setup_timer+0xf0/0xf0 [ 225.790298][ T6511] futex_wake+0xe4/0x490 [pid 6519] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6517] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6520 attached ) = 1 [pid 6514] <... futex resumed>) = 0 [pid 6520] set_robust_list(0x7fc1280c99e0, 24 [pid 6517] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6514] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6520] <... set_robust_list resumed>) = 0 [pid 6517] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6514] <... futex resumed>) = 0 [pid 6520] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6517] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6514] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6520] <... socket resumed>) = 3 [pid 6517] <... openat resumed>) = 3 [pid 6520] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6517] write(3, "5", 1 [pid 6520] <... futex resumed>) = 1 [pid 6519] <... futex resumed>) = 0 [pid 6517] <... write resumed>) = 1 [pid 6520] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6519] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6517] setsockopt(-1, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6520] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6519] <... futex resumed>) = 0 [pid 6517] <... setsockopt resumed>) = -1 EBADF (Bad file descriptor) [pid 6520] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6519] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6517] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6520] <... setsockopt resumed>) = 0 [pid 6517] <... futex resumed>) = 1 [pid 6514] <... futex resumed>) = 0 [pid 6520] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6517] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6520] <... futex resumed>) = 1 [pid 6519] <... futex resumed>) = 0 [pid 6520] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6519] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6520] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6519] <... futex resumed>) = 0 [pid 6520] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6519] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6520] <... setsockopt resumed>) = 0 [pid 6520] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6519] <... futex resumed>) = 0 [pid 6520] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6519] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6520] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6519] <... futex resumed>) = 0 [pid 6520] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6519] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6520] <... setsockopt resumed>) = 0 [pid 6520] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6519] <... futex resumed>) = 0 [pid 6520] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6519] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6520] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6519] <... futex resumed>) = 0 [pid 6520] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6519] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6520] <... sendto resumed>) = 1 [pid 6520] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6519] <... futex resumed>) = 0 [pid 6520] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6519] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6520] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6519] <... futex resumed>) = 0 [pid 6520] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6519] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6520] <... sendto resumed>) = 1 [ 225.794585][ T6511] ? futex_wake_mark+0x1a0/0x1a0 [ 225.799554][ T6511] ? ptrace_stop.part.0+0x5ec/0xa80 [ 225.804791][ T6511] ? do_raw_spin_lock+0x120/0x2a0 [ 225.809846][ T6511] ? rwlock_bug.part.0+0x90/0x90 [ 225.814807][ T6511] ? _raw_spin_lock_irq+0x41/0x50 [ 225.819871][ T6511] do_futex+0x266/0x300 [ 225.824063][ T6511] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 225.829993][ T6511] ? find_held_lock+0x2d/0x110 [ 225.834802][ T6511] __x64_sys_futex+0x1b0/0x4a0 [ 225.839644][ T6511] ? do_futex+0x300/0x300 [pid 6520] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6519] <... futex resumed>) = 0 [pid 6520] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6519] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6520] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6519] <... futex resumed>) = 0 [pid 6520] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6519] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6520] <... openat resumed>) = 4 [pid 6520] write(4, "5", 1) = 1 [pid 6520] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6520] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6519] <... futex resumed>) = 0 [pid 6520] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6519] exit_group(0 [pid 6520] <... futex resumed>) = ? [pid 6519] <... exit_group resumed>) = ? [pid 6520] +++ exited with 0 +++ [pid 6519] +++ exited with 0 +++ [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6519, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6521 ./strace-static-x86_64: Process 6521 attached [pid 6521] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6521] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6521] setpgid(0, 0) = 0 [pid 6521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6521] write(3, "1000", 4) = 4 [pid 6521] close(3) = 0 [pid 6521] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6521] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6521] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6521] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6522], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6522 [pid 6521] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6508] exit_group(0 [pid 6521] <... futex resumed>) = 0 [pid 6508] <... exit_group resumed>) = ? [ 225.844004][ T6511] ? _raw_spin_unlock_irq+0x1f/0x40 [ 225.849237][ T6511] ? lockdep_hardirqs_on+0x79/0x100 [ 225.854469][ T6511] ? _raw_spin_unlock_irq+0x2a/0x40 [ 225.859699][ T6511] ? ptrace_notify+0xfa/0x140 [ 225.864417][ T6511] do_syscall_64+0x35/0xb0 [ 225.868867][ T6511] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 225.874795][ T6511] RIP: 0033:0x7fc128117db9 [pid 6521] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6522 attached [pid 6522] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6522] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6522] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6521] <... futex resumed>) = 0 [pid 6522] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6521] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6522] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6521] <... futex resumed>) = 0 [pid 6522] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6521] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6522] <... setsockopt resumed>) = 0 [pid 6522] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6521] <... futex resumed>) = 0 [pid 6522] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6521] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6522] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6521] <... futex resumed>) = 0 [pid 6522] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6521] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6522] <... setsockopt resumed>) = 0 [pid 6522] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6521] <... futex resumed>) = 0 [pid 6522] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6521] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6522] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6521] <... futex resumed>) = 0 [pid 6522] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6521] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6522] <... setsockopt resumed>) = 0 [pid 6522] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6521] <... futex resumed>) = 0 [pid 6522] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6521] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6522] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6521] <... futex resumed>) = 0 [pid 6522] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6521] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6522] <... sendto resumed>) = 1 [pid 6522] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6521] <... futex resumed>) = 0 [pid 6522] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6521] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6522] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6521] <... futex resumed>) = 0 [ 225.879240][ T6511] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 225.898885][ T6511] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 225.907333][ T6511] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 225.915336][ T6511] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 225.923339][ T6511] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 225.931339][ T6511] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 225.939339][ T6511] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [pid 6522] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6521] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6522] <... sendto resumed>) = 1 [pid 6522] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6516] set_robust_list(0x5555564f35e0, 24 [pid 6515] set_robust_list(0x7fc1280c99e0, 24 [pid 6522] <... futex resumed>) = 1 [pid 6521] <... futex resumed>) = 0 [pid 6516] <... set_robust_list resumed>) = 0 [pid 6515] <... set_robust_list resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6522] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6521] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6516] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6515] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6512] <... futex resumed>) = ? [pid 6511] <... futex resumed>) = ? ./strace-static-x86_64: Process 6523 attached [pid 6522] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6521] <... futex resumed>) = 0 [pid 6516] <... prctl resumed>) = 0 [pid 6515] <... socket resumed>) = 4 [pid 6522] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6521] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6512] +++ exited with 0 +++ [pid 6516] setpgid(0, 0 [pid 6511] +++ exited with 0 +++ [pid 6523] set_robust_list(0x5555564f35e0, 24 [pid 6515] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6509] +++ exited with 0 +++ [pid 6508] +++ exited with 0 +++ [pid 3615] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6523 [pid 6523] <... set_robust_list resumed>) = 0 [pid 6522] <... openat resumed>) = 4 [pid 6516] <... setpgid resumed>) = 0 [pid 6515] <... futex resumed>) = 0 [pid 6514] exit_group(0 [pid 6523] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6522] write(4, "5", 1 [pid 6518] <... futex resumed>) = ? [pid 6517] <... futex resumed>) = ? [pid 6516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6514] <... exit_group resumed>) = ? [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6509, si_uid=0, si_status=0, si_utime=0, si_stime=26} --- [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6508, si_uid=0, si_status=0, si_utime=0, si_stime=24} --- [pid 6523] <... prctl resumed>) = 0 [pid 6522] <... write resumed>) = 1 [pid 6518] +++ exited with 0 +++ [pid 6516] <... openat resumed>) = 3 [pid 6515] +++ exited with 0 +++ [pid 6523] setpgid(0, 0 [pid 6516] write(3, "1000", 4 [pid 6523] <... setpgid resumed>) = 0 [pid 6516] <... write resumed>) = 4 [pid 6523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6516] close(3 [pid 6523] <... openat resumed>) = 3 [pid 6516] <... close resumed>) = 0 [pid 6523] write(3, "1000", 4 [pid 6516] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6523] <... write resumed>) = 4 [pid 6516] <... futex resumed>) = 0 [pid 6523] close(3 [pid 6516] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6523] <... close resumed>) = 0 [pid 6516] <... mmap resumed>) = 0x7fc1280a9000 [pid 6523] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6516] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6523] <... futex resumed>) = 0 [pid 6516] <... mprotect resumed>) = 0 [pid 6523] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6516] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6523] <... mmap resumed>) = 0x7fc1280a9000 [pid 6522] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 6523] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6516] <... clone resumed>, parent_tid=[6524], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6524 [pid 6523] <... mprotect resumed>) = 0 [pid 6516] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6523] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6516] <... futex resumed>) = 0 [pid 6516] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6523] <... clone resumed>, parent_tid=[6525], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6525 [pid 6523] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6523] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... restart_syscall resumed>) = 0 [pid 6522] <... setsockopt resumed>) = 0 [pid 6522] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6526 [pid 6522] <... futex resumed>) = 1 [pid 6521] <... futex resumed>) = 0 [pid 6521] exit_group(0) = ? [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6524 attached [pid 6524] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6524] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6524] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6516] <... futex resumed>) = 0 [pid 6524] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6516] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6524] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6516] <... futex resumed>) = 0 [pid 6524] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6516] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6524] <... setsockopt resumed>) = 0 ./strace-static-x86_64: Process 6527 attached [pid 6524] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6522] +++ exited with 0 +++ [pid 6521] +++ exited with 0 +++ [pid 3607] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6527 ./strace-static-x86_64: Process 6526 attached ./strace-static-x86_64: Process 6525 attached [pid 6527] set_robust_list(0x5555564f35e0, 24 [pid 6524] <... futex resumed>) = 1 [pid 6516] <... futex resumed>) = 0 [pid 6527] <... set_robust_list resumed>) = 0 [pid 6524] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6516] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6527] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6524] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6516] <... futex resumed>) = 0 [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6521, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6527] <... prctl resumed>) = 0 [pid 6524] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6516] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3610] restart_syscall(<... resuming interrupted clone ...> [pid 6527] setpgid(0, 0 [pid 6524] <... setsockopt resumed>) = 0 [pid 3610] <... restart_syscall resumed>) = 0 [pid 6527] <... setpgid resumed>) = 0 [pid 6524] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6527] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6526] set_robust_list(0x5555564f35e0, 24 [pid 6524] <... futex resumed>) = 1 [pid 6516] <... futex resumed>) = 0 [pid 6527] <... openat resumed>) = 3 [pid 6526] <... set_robust_list resumed>) = 0 [pid 6525] set_robust_list(0x7fc1280c99e0, 24 [pid 6524] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6516] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6527] write(3, "1000", 4 [pid 6526] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6524] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6516] <... futex resumed>) = 0 [pid 6527] <... write resumed>) = 4 [pid 6524] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6516] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6526] <... prctl resumed>) = 0 [pid 6525] <... set_robust_list resumed>) = 0 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6527] close(3 [pid 6524] <... setsockopt resumed>) = 0 [pid 6527] <... close resumed>) = 0 [pid 6524] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6527] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6524] <... futex resumed>) = 1 [pid 6516] <... futex resumed>) = 0 [pid 6527] <... futex resumed>) = 0 [pid 6526] setpgid(0, 0 [pid 6525] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6524] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 225.947355][ T6511] [ 225.966777][ T6517] FAULT_INJECTION: forcing a failure. [ 225.966777][ T6517] name fail_futex, interval 1, probability 0, space 0, times 0 [ 226.000804][ T6517] CPU: 1 PID: 6517 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 226.011357][ T6517] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 226.021415][ T6517] Call Trace: [ 226.024696][ T6517] [ 226.027634][ T6517] dump_stack_lvl+0xcd/0x134 [ 226.032249][ T6517] should_fail.cold+0x5/0xa [ 226.036764][ T6517] get_futex_key+0x11d2/0x1c50 [ 226.041537][ T6517] ? futex_setup_timer+0xf0/0xf0 [ 226.046483][ T6517] futex_wake+0xe4/0x490 [ 226.050734][ T6517] ? futex_wake_mark+0x1a0/0x1a0 [ 226.055688][ T6517] ? find_held_lock+0x2d/0x110 [ 226.060468][ T6517] do_futex+0x266/0x300 [ 226.064625][ T6517] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 226.070615][ T6517] mm_release+0x235/0x2c0 [ 226.074951][ T6517] do_exit+0x8a0/0x29d0 [ 226.079111][ T6517] ? find_held_lock+0x2d/0x110 [ 226.083885][ T6517] ? mm_update_next_owner+0x7a0/0x7a0 [ 226.089262][ T6517] ? lock_downgrade+0x6e0/0x6e0 [ 226.094207][ T6517] do_group_exit+0xd2/0x2f0 [ 226.098720][ T6517] get_signal+0x2542/0x2600 [ 226.103236][ T6517] ? exit_signals+0x8b0/0x8b0 [ 226.107913][ T6517] ? userns_owner+0x40/0x40 [ 226.112427][ T6517] ? __task_pid_nr_ns+0x168/0x4b0 [ 226.117455][ T6517] ? lock_downgrade+0x6e0/0x6e0 [ 226.122310][ T6517] arch_do_signal_or_restart+0x82/0x2300 [ 226.127946][ T6517] ? from_kuid_munged+0xa2/0x130 [ 226.132890][ T6517] ? find_held_lock+0x2d/0x110 [ 226.137657][ T6517] ? get_sigframe_size+0x10/0x10 [ 226.142695][ T6517] ? ptrace_notify+0xfa/0x140 [ 226.147404][ T6517] ? lock_downgrade+0x6e0/0x6e0 [ 226.152272][ T6517] ? send_sig+0xfe/0x160 [ 226.156517][ T6517] ? send_sig_info+0x140/0x140 [ 226.161299][ T6517] ? exit_to_user_mode_prepare+0x137/0x250 [ 226.167122][ T6517] exit_to_user_mode_prepare+0x15f/0x250 [ 226.172776][ T6517] syscall_exit_to_user_mode+0x19/0x50 [ 226.178248][ T6517] do_syscall_64+0x42/0xb0 [ 226.182752][ T6517] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 226.188655][ T6517] RIP: 0033:0x7fc128117db9 [ 226.193071][ T6517] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 226.212686][ T6517] RSP: 002b:00007fc1280a82e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 226.221104][ T6517] RAX: fffffffffffffe00 RBX: 00007fc1281a04b0 RCX: 00007fc128117db9 [ 226.229076][ T6517] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fc1281a04b8 [ 226.237046][ T6517] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [pid 6516] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6528 attached [pid 6527] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6526] <... setpgid resumed>) = 0 [pid 6525] <... socket resumed>) = 3 [pid 6524] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6523] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6516] <... futex resumed>) = 0 [pid 3610] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6528 [pid 6528] set_robust_list(0x5555564f35e0, 24 [pid 6527] <... mmap resumed>) = 0x7fc1280a9000 [pid 6526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6525] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6524] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6523] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6516] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6528] <... set_robust_list resumed>) = 0 [pid 6527] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6526] <... openat resumed>) = 3 [pid 6525] <... futex resumed>) = 0 [pid 6528] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6527] <... mprotect resumed>) = 0 [pid 6526] write(3, "1000", 4 [pid 6525] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6523] <... futex resumed>) = 0 [pid 6528] <... prctl resumed>) = 0 [pid 6527] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6526] <... write resumed>) = 4 [pid 6525] <... setsockopt resumed>) = 0 [pid 6524] <... sendto resumed>) = 1 [pid 6523] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6517] +++ exited with 0 +++ [pid 6514] +++ exited with 0 +++ ./strace-static-x86_64: Process 6529 attached [pid 6528] setpgid(0, 0 [pid 6526] close(3 [pid 6525] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6524] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6523] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6514, si_uid=0, si_status=0, si_utime=0, si_stime=28} --- [pid 6529] set_robust_list(0x7fc1280c99e0, 24 [pid 6528] <... setpgid resumed>) = 0 [pid 6527] <... clone resumed>, parent_tid=[6529], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6529 [pid 6526] <... close resumed>) = 0 [pid 6525] <... futex resumed>) = 0 [pid 6524] <... futex resumed>) = 1 [pid 6523] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6516] <... futex resumed>) = 0 [pid 3608] restart_syscall(<... resuming interrupted clone ...> [pid 6529] <... set_robust_list resumed>) = 0 [pid 6528] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6527] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6526] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6525] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6524] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6523] <... futex resumed>) = 0 [pid 6516] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] <... restart_syscall resumed>) = 0 [pid 6529] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6528] <... openat resumed>) = 3 [pid 6527] <... futex resumed>) = 0 [pid 6526] <... futex resumed>) = 0 [pid 6525] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6524] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6523] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6516] <... futex resumed>) = 0 [pid 6529] <... socket resumed>) = 3 [pid 6528] write(3, "1000", 4 [pid 6527] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6526] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6525] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6524] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6523] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6516] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6529] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6528] <... write resumed>) = 4 [pid 6527] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6526] <... mmap resumed>) = 0x7fc1280a9000 [pid 6525] <... futex resumed>) = 0 [pid 6524] <... sendto resumed>) = 1 [pid 6523] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6529] <... futex resumed>) = 0 [pid 6528] close(3 [pid 6527] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6526] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6525] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6524] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6523] <... futex resumed>) = 0 [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6529] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6528] <... close resumed>) = 0 [pid 6527] <... futex resumed>) = 0 [pid 6526] <... mprotect resumed>) = 0 [pid 6525] <... setsockopt resumed>) = 0 [pid 6524] <... futex resumed>) = 1 [pid 6523] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6516] <... futex resumed>) = 0 [pid 6529] <... setsockopt resumed>) = 0 [pid 6528] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6527] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6526] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6525] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6524] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6523] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6516] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6529] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6528] <... futex resumed>) = 0 [pid 6527] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6524] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6523] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6516] <... futex resumed>) = 0 [pid 6529] <... futex resumed>) = 0 [pid 6528] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6527] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6525] <... futex resumed>) = 0 [pid 6524] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6523] <... futex resumed>) = 0 [pid 6516] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3608] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6530 [pid 6529] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6528] <... mmap resumed>) = 0x7fc1280a9000 [pid 6527] <... futex resumed>) = 0 [pid 6526] <... clone resumed>, parent_tid=[6531], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6531 [pid 6525] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6524] <... openat resumed>) = 4 [pid 6523] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6530 attached [pid 6529] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6528] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6527] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6526] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6524] write(4, "5", 1./strace-static-x86_64: Process 6531 attached [pid 6530] set_robust_list(0x5555564f35e0, 24 [pid 6529] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6528] <... mprotect resumed>) = 0 [pid 6527] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6526] <... futex resumed>) = 0 [pid 6525] <... sendto resumed>) = 1 [pid 6524] <... write resumed>) = 1 [pid 6531] set_robust_list(0x7fc1280c99e0, 24 [pid 6530] <... set_robust_list resumed>) = 0 [pid 6529] <... futex resumed>) = 0 [pid 6528] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6527] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6526] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6525] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6524] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6531] <... set_robust_list resumed>) = 0 [pid 6530] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6529] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6527] <... futex resumed>) = 0 [pid 6525] <... futex resumed>) = 1 [pid 6524] <... setsockopt resumed>) = 0 [pid 6523] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6532 attached [pid 6531] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6530] <... prctl resumed>) = 0 [pid 6529] <... setsockopt resumed>) = 0 [pid 6528] <... clone resumed>, parent_tid=[6532], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6532 [pid 6527] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6525] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6524] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6523] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6531] <... socket resumed>) = 3 [pid 6530] setpgid(0, 0 [pid 6529] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6528] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6527] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6525] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6524] <... futex resumed>) = 1 [pid 6523] <... futex resumed>) = 0 [pid 6516] <... futex resumed>) = 0 [pid 6531] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6530] <... setpgid resumed>) = 0 [pid 6529] <... futex resumed>) = 0 [pid 6528] <... futex resumed>) = 0 [pid 6527] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6525] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6524] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6523] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6516] exit_group(0 [pid 6532] set_robust_list(0x7fc1280c99e0, 24 [pid 6531] <... futex resumed>) = 1 [pid 6530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6529] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6528] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6527] <... futex resumed>) = 0 [pid 6526] <... futex resumed>) = 0 [pid 6525] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6524] <... futex resumed>) = ? [pid 6516] <... exit_group resumed>) = ? [pid 6532] <... set_robust_list resumed>) = 0 [pid 6531] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6530] <... openat resumed>) = 3 [pid 6529] <... sendto resumed>) = 1 [pid 6527] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6526] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6525] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6524] +++ exited with 0 +++ [pid 6532] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6531] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6526] <... futex resumed>) = 0 [pid 6525] <... futex resumed>) = 1 [pid 6532] <... socket resumed>) = 3 [pid 6531] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6530] write(3, "1000", 4 [pid 6526] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6525] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6523] <... futex resumed>) = 0 [ 226.245015][ T6517] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc1280a82f0 [ 226.252983][ T6517] R13: 00007fc1281a04b8 R14: 0100000000000000 R15: 0000000000000001 [ 226.261065][ T6517] [pid 6532] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6531] <... setsockopt resumed>) = 0 [pid 6530] <... write resumed>) = 4 [pid 6529] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6523] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6516] +++ exited with 0 +++ [pid 6532] <... futex resumed>) = 1 [pid 6531] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6530] close(3 [pid 6529] <... futex resumed>) = 1 [pid 6528] <... futex resumed>) = 0 [pid 6527] <... futex resumed>) = 0 [pid 6525] <... futex resumed>) = 0 [pid 6523] <... futex resumed>) = 1 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6516, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6532] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6531] <... futex resumed>) = 1 [pid 6530] <... close resumed>) = 0 [pid 6529] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6528] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6527] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6526] <... futex resumed>) = 0 [pid 6525] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6523] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6532] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6531] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6530] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6529] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6528] <... futex resumed>) = 0 [pid 6527] <... futex resumed>) = 0 [pid 6526] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6525] <... openat resumed>) = 4 [pid 6532] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6531] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6530] <... futex resumed>) = 0 [pid 6529] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6528] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6527] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6526] <... futex resumed>) = 0 [pid 6525] write(4, "5", 1 [pid 6532] <... setsockopt resumed>) = 0 [pid 6531] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6530] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6529] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6526] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6525] <... write resumed>) = 1 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6532] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6531] <... setsockopt resumed>) = 0 [pid 6530] <... mmap resumed>) = 0x7fc1280a9000 [pid 6529] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6525] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6532] <... futex resumed>) = 1 [pid 6531] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6530] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6528] <... futex resumed>) = 0 [pid 6529] <... futex resumed>) = 1 ./strace-static-x86_64: Process 6533 attached [pid 6532] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6531] <... futex resumed>) = 1 [pid 6530] <... mprotect resumed>) = 0 [pid 6529] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6528] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6527] <... futex resumed>) = 0 [pid 6526] <... futex resumed>) = 0 [pid 6525] <... setsockopt resumed>) = 0 [pid 3614] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6533 [pid 6532] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6531] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6530] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6528] <... futex resumed>) = 0 [pid 6527] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6526] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6525] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6533] set_robust_list(0x5555564f35e0, 24 [pid 6532] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6531] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6529] <... futex resumed>) = 0 [pid 6528] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6527] <... futex resumed>) = 1 [pid 6526] <... futex resumed>) = 0 [pid 6532] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6531] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6526] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6532] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6531] <... setsockopt resumed>) = 0 [pid 6532] <... futex resumed>) = 0 [pid 6531] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6532] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6531] <... futex resumed>) = 1 [pid 6526] <... futex resumed>) = 0 [pid 6531] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6526] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6531] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6526] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6534 attached [pid 6531] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6526] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6534] set_robust_list(0x7fc1280c99e0, 24 [pid 6531] <... sendto resumed>) = 1 [pid 6534] <... set_robust_list resumed>) = 0 [pid 6531] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6534] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6531] <... futex resumed>) = 1 [pid 6526] <... futex resumed>) = 0 [pid 6531] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6526] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6531] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6526] <... futex resumed>) = 0 [pid 6531] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6526] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6531] <... sendto resumed>) = 1 [pid 6531] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6526] <... futex resumed>) = 0 [pid 6531] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6526] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6531] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6526] <... futex resumed>) = 0 [pid 6531] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6526] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6533] <... set_robust_list resumed>) = 0 [pid 6531] <... openat resumed>) = 4 [ 226.326496][ T6525] FAULT_INJECTION: forcing a failure. [ 226.326496][ T6525] name fail_futex, interval 1, probability 0, space 0, times 0 [ 226.341694][ T6525] CPU: 1 PID: 6525 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 226.352260][ T6525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 226.357622][ T6532] FAULT_INJECTION: forcing a failure. [ 226.357622][ T6532] name fail_futex, interval 1, probability 0, space 0, times 0 [pid 6530] <... clone resumed>, parent_tid=[6534], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6534 [pid 6529] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6528] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6527] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6533] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6531] write(4, "5", 1) = 1 [pid 6531] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6531] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6526] <... futex resumed>) = 0 [pid 6531] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6526] exit_group(0 [pid 6531] <... futex resumed>) = ? [pid 6528] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6526] <... exit_group resumed>) = ? [pid 6532] <... futex resumed>) = 0 [pid 6531] +++ exited with 0 +++ [pid 6528] <... futex resumed>) = 1 [pid 6526] +++ exited with 0 +++ [pid 6532] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6528] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6532] <... setsockopt resumed>) = 0 [pid 6532] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6528] <... futex resumed>) = 0 [pid 6532] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6528] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6532] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6528] <... futex resumed>) = 0 [pid 6532] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6528] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6532] <... sendto resumed>) = 1 [pid 6532] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6528] <... futex resumed>) = 0 [pid 6532] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6528] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6532] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6528] <... futex resumed>) = 0 [pid 6532] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6528] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6532] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6532] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6528] <... futex resumed>) = 0 [pid 6532] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6528] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6532] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6528] <... futex resumed>) = 0 [pid 6532] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6528] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6532] <... openat resumed>) = 4 [pid 6532] write(4, "5", 1) = 1 [pid 6532] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6532] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6530] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6529] <... openat resumed>) = 4 [pid 6534] <... futex resumed>) = 0 [pid 6530] <... futex resumed>) = 1 [pid 6534] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6530] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6529] write(4, "5", 1 [pid 6528] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6534] <... socket resumed>) = 3 [pid 6529] <... write resumed>) = 1 [pid 6528] exit_group(0 [pid 6534] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6529] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6528] <... exit_group resumed>) = ? [pid 6534] <... futex resumed>) = 1 [pid 6530] <... futex resumed>) = 0 [pid 6529] <... setsockopt resumed>) = 0 [pid 6534] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [ 226.362345][ T6525] Call Trace: [ 226.362356][ T6525] [ 226.362365][ T6525] dump_stack_lvl+0xcd/0x134 [ 226.362398][ T6525] should_fail.cold+0x5/0xa [ 226.390525][ T6525] get_futex_key+0x5b2/0x1c50 [ 226.395225][ T6525] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 226.401232][ T6525] ? futex_setup_timer+0xf0/0xf0 [ 226.406204][ T6525] futex_wake+0xe4/0x490 [ 226.410487][ T6525] ? futex_wake_mark+0x1a0/0x1a0 [ 226.412584][ T6529] FAULT_INJECTION: forcing a failure. [pid 6530] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6529] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6534] <... setsockopt resumed>) = 0 [pid 6530] <... futex resumed>) = 0 [pid 6534] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6530] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6534] <... futex resumed>) = 0 [pid 6530] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6534] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6530] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6534] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6530] <... futex resumed>) = 0 [pid 6534] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6530] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6534] <... setsockopt resumed>) = 0 [pid 6534] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6530] <... futex resumed>) = 0 [pid 6534] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6530] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6534] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6530] <... futex resumed>) = 0 [pid 6534] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6530] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6534] <... setsockopt resumed>) = 0 [pid 6534] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6530] <... futex resumed>) = 0 [pid 6534] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6530] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6534] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6530] <... futex resumed>) = 0 [pid 6534] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6530] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6534] <... sendto resumed>) = 1 [pid 6534] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6530] <... futex resumed>) = 0 [pid 6534] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6530] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6534] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6530] <... futex resumed>) = 0 [pid 6534] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6530] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6534] <... sendto resumed>) = 1 [pid 6534] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6530] <... futex resumed>) = 0 [pid 6534] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6530] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6534] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6530] <... futex resumed>) = 0 [pid 6534] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6530] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6534] <... openat resumed>) = 4 [pid 6534] write(4, "5", 1) = 1 [pid 6534] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6534] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6530] <... futex resumed>) = 0 [ 226.412584][ T6529] name fail_futex, interval 1, probability 0, space 0, times 0 [ 226.415523][ T6525] ? ptrace_stop.part.0+0x5ec/0xa80 [ 226.415554][ T6525] ? do_raw_spin_lock+0x120/0x2a0 [ 226.438536][ T6525] ? rwlock_bug.part.0+0x90/0x90 [ 226.443527][ T6525] ? _raw_spin_lock_irq+0x41/0x50 [ 226.448584][ T6525] do_futex+0x266/0x300 [ 226.452868][ T6525] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 226.458789][ T6525] ? find_held_lock+0x2d/0x110 [ 226.463593][ T6525] __x64_sys_futex+0x1b0/0x4a0 [ 226.468377][ T6525] ? do_futex+0x300/0x300 [pid 6534] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6530] exit_group(0 [pid 6534] <... futex resumed>) = ? [pid 6530] <... exit_group resumed>) = ? [pid 6534] +++ exited with 0 +++ [pid 6530] +++ exited with 0 +++ [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6530, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3608] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6535 ./strace-static-x86_64: Process 6535 attached [pid 6535] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6535] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6535] setpgid(0, 0) = 0 [pid 6535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6535] write(3, "1000", 4) = 4 [pid 6535] close(3) = 0 [pid 6535] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6535] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6535] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6535] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6536], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6536 [pid 6535] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6535] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6536 attached [pid 6536] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6536] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6536] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6535] <... futex resumed>) = 0 [pid 6536] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6535] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6536] <... setsockopt resumed>) = 0 [pid 6535] <... futex resumed>) = 0 [pid 6536] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [ 226.472711][ T6525] ? _raw_spin_unlock_irq+0x1f/0x40 [ 226.477930][ T6525] ? lockdep_hardirqs_on+0x79/0x100 [ 226.483158][ T6525] ? _raw_spin_unlock_irq+0x2a/0x40 [ 226.488388][ T6525] ? ptrace_notify+0xfa/0x140 [ 226.493180][ T6525] do_syscall_64+0x35/0xb0 [ 226.497623][ T6525] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 226.503531][ T6525] RIP: 0033:0x7fc128117db9 [ 226.507958][ T6525] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [pid 6535] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6536] <... futex resumed>) = 0 [pid 6535] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6536] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6535] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6536] <... setsockopt resumed>) = 0 [pid 6535] <... futex resumed>) = 0 [pid 6536] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6535] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6536] <... futex resumed>) = 0 [pid 6535] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6536] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6535] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6536] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6535] <... futex resumed>) = 0 [pid 6536] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6535] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6536] <... setsockopt resumed>) = 0 [pid 6536] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6535] <... futex resumed>) = 0 [pid 6536] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6535] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6536] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6535] <... futex resumed>) = 0 [pid 6536] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6535] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6536] <... sendto resumed>) = 1 [pid 6536] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6535] <... futex resumed>) = 0 [pid 6536] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6535] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6536] <... sendto resumed>) = 1 [pid 6535] <... futex resumed>) = 0 [pid 6536] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6535] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6536] <... futex resumed>) = 0 [pid 6535] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6536] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6535] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6536] <... openat resumed>) = 4 [pid 6535] <... futex resumed>) = 0 [pid 6536] write(4, "5", 1 [pid 6535] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6536] <... write resumed>) = 1 [pid 6536] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6536] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6535] <... futex resumed>) = 0 [pid 6536] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6535] exit_group(0 [pid 6536] <... futex resumed>) = ? [pid 6535] <... exit_group resumed>) = ? [pid 6536] +++ exited with 0 +++ [pid 6535] +++ exited with 0 +++ [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6535, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [ 226.527594][ T6525] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 226.536027][ T6525] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 226.544019][ T6525] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 226.551997][ T6525] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 226.559987][ T6525] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 226.567981][ T6525] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6533] <... prctl resumed>) = 0 [pid 6527] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6526, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3608] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6537 [pid 6523] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 226.575993][ T6525] [ 226.582921][ T6532] CPU: 0 PID: 6532 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 226.593435][ T6532] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 226.603500][ T6532] Call Trace: [ 226.606778][ T6532] [ 226.609733][ T6532] dump_stack_lvl+0xcd/0x134 [ 226.614338][ T6532] should_fail.cold+0x5/0xa [ 226.618864][ T6532] get_futex_key+0x5b2/0x1c50 [ 226.623549][ T6532] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 226.629538][ T6532] ? futex_setup_timer+0xf0/0xf0 [ 226.634501][ T6532] futex_wake+0xe4/0x490 [ 226.638768][ T6532] ? futex_wake_mark+0x1a0/0x1a0 [ 226.644319][ T6532] ? ptrace_stop.part.0+0x5ec/0xa80 [ 226.649527][ T6532] ? do_raw_spin_lock+0x120/0x2a0 [ 226.654555][ T6532] ? rwlock_bug.part.0+0x90/0x90 [ 226.659501][ T6532] ? _raw_spin_lock_irq+0x41/0x50 [ 226.664538][ T6532] do_futex+0x266/0x300 [ 226.668705][ T6532] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 226.674602][ T6532] ? find_held_lock+0x2d/0x110 [ 226.679380][ T6532] __x64_sys_futex+0x1b0/0x4a0 [ 226.684603][ T6532] ? do_futex+0x300/0x300 [ 226.688934][ T6532] ? _raw_spin_unlock_irq+0x1f/0x40 [ 226.694134][ T6532] ? lockdep_hardirqs_on+0x79/0x100 [ 226.699333][ T6532] ? _raw_spin_unlock_irq+0x2a/0x40 [ 226.704532][ T6532] ? ptrace_notify+0xfa/0x140 [ 226.709212][ T6532] do_syscall_64+0x35/0xb0 [ 226.713630][ T6532] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 226.719525][ T6532] RIP: 0033:0x7fc128117db9 [ 226.723953][ T6532] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 226.743564][ T6532] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 226.751977][ T6532] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 226.759945][ T6532] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 226.767916][ T6532] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 226.775886][ T6532] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 226.783854][ T6532] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 226.791844][ T6532] [ 226.794935][ T6529] CPU: 1 PID: 6529 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 226.805459][ T6529] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 226.815512][ T6529] Call Trace: [ 226.818788][ T6529] [ 226.821718][ T6529] dump_stack_lvl+0xcd/0x134 [ 226.826316][ T6529] should_fail.cold+0x5/0xa [ 226.830846][ T6529] get_futex_key+0x5b2/0x1c50 [ 226.835528][ T6529] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 226.841511][ T6529] ? futex_setup_timer+0xf0/0xf0 [ 226.846458][ T6529] futex_wake+0xe4/0x490 [ 226.850706][ T6529] ? futex_wake_mark+0x1a0/0x1a0 [ 226.855642][ T6529] ? ptrace_stop.part.0+0x5ec/0xa80 [ 226.860842][ T6529] ? do_raw_spin_lock+0x120/0x2a0 [ 226.865868][ T6529] ? rwlock_bug.part.0+0x90/0x90 [ 226.870803][ T6529] ? _raw_spin_lock_irq+0x41/0x50 [ 226.875835][ T6529] do_futex+0x266/0x300 [ 226.879991][ T6529] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 226.885882][ T6529] ? find_held_lock+0x2d/0x110 [ 226.890656][ T6529] __x64_sys_futex+0x1b0/0x4a0 [ 226.895428][ T6529] ? do_futex+0x300/0x300 [ 226.899756][ T6529] ? _raw_spin_unlock_irq+0x1f/0x40 [ 226.904959][ T6529] ? lockdep_hardirqs_on+0x79/0x100 [ 226.910158][ T6529] ? _raw_spin_unlock_irq+0x2a/0x40 [ 226.915363][ T6529] ? ptrace_notify+0xfa/0x140 [ 226.920044][ T6529] do_syscall_64+0x35/0xb0 [ 226.924462][ T6529] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 226.930370][ T6529] RIP: 0033:0x7fc128117db9 [ 226.934785][ T6529] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 226.954391][ T6529] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 226.962816][ T6529] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 226.970786][ T6529] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac ./strace-static-x86_64: Process 6537 attached [pid 6533] setpgid(0, 0 [pid 6532] <... futex resumed>) = ? [pid 6527] exit_group(0 [pid 6525] <... futex resumed>) = -1 EFAULT (Bad address) [pid 6523] exit_group(0 [pid 6537] set_robust_list(0x5555564f35e0, 24 [pid 6533] <... setpgid resumed>) = 0 [pid 6532] +++ exited with 0 +++ [pid 6528] +++ exited with 0 +++ [pid 6529] <... futex resumed>) = ? [pid 6527] <... exit_group resumed>) = ? [pid 6523] <... exit_group resumed>) = ? [pid 6537] <... set_robust_list resumed>) = 0 [pid 6533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6525] +++ exited with 0 +++ [pid 6537] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6533] <... openat resumed>) = 3 [pid 6529] +++ exited with 0 +++ [pid 6527] +++ exited with 0 +++ [pid 6523] +++ exited with 0 +++ [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6528, si_uid=0, si_status=0, si_utime=0, si_stime=27} --- [pid 6537] <... prctl resumed>) = 0 [pid 6533] write(3, "1000", 4 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6523, si_uid=0, si_status=0, si_utime=0, si_stime=26} --- [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6537] setpgid(0, 0 [pid 6533] <... write resumed>) = 4 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6537] <... setpgid resumed>) = 0 [pid 6533] close(3) = 0 [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6539 [pid 6537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6533] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3610] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6538 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6527, si_uid=0, si_status=0, si_utime=0, si_stime=35} --- [pid 6537] <... openat resumed>) = 3 [pid 6533] <... futex resumed>) = 0 [pid 6537] write(3, "1000", 4 [pid 6533] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6540 attached ./strace-static-x86_64: Process 6539 attached ./strace-static-x86_64: Process 6538 attached [pid 6537] <... write resumed>) = 4 [pid 6533] <... mmap resumed>) = 0x7fc1280a9000 [pid 6533] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 3615] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6540 [pid 6533] <... mprotect resumed>) = 0 [pid 6533] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6541], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6541 [pid 6533] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6533] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6541 attached [pid 6541] set_robust_list(0x7fc1280c99e0, 24 [pid 6537] close(3) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6542 [pid 6539] set_robust_list(0x5555564f35e0, 24 [pid 6537] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6541] <... set_robust_list resumed>) = 0 [pid 6541] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6537] <... futex resumed>) = 0 [pid 6537] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6539] <... set_robust_list resumed>) = 0 [pid 6537] <... mmap resumed>) = 0x7fc1280a9000 [pid 6537] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6541] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6539] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6537] <... mprotect resumed>) = 0 [pid 6539] <... prctl resumed>) = 0 [pid 6533] <... futex resumed>) = 0 [pid 6537] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6533] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6539] setpgid(0, 0 [pid 6533] <... futex resumed>) = 0 [pid 6541] <... futex resumed>) = 1 [pid 6539] <... setpgid resumed>) = 0 [pid 6533] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6541] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6539] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6538] set_robust_list(0x5555564f35e0, 24 [pid 6537] <... clone resumed>, parent_tid=[6543], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6543 ./strace-static-x86_64: Process 6542 attached ./strace-static-x86_64: Process 6543 attached [pid 6541] <... setsockopt resumed>) = 0 [pid 6540] set_robust_list(0x5555564f35e0, 24 [pid 6539] <... openat resumed>) = 3 [pid 6538] <... set_robust_list resumed>) = 0 [pid 6537] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6543] set_robust_list(0x7fc1280c99e0, 24 [pid 6542] set_robust_list(0x5555564f35e0, 24 [pid 6541] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6540] <... set_robust_list resumed>) = 0 [pid 6539] write(3, "1000", 4 [pid 6538] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6537] <... futex resumed>) = 0 [pid 6543] <... set_robust_list resumed>) = 0 [pid 6541] <... futex resumed>) = 1 [pid 6540] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6539] <... write resumed>) = 4 [pid 6538] <... prctl resumed>) = 0 [pid 6537] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6533] <... futex resumed>) = 0 [pid 6542] <... set_robust_list resumed>) = 0 [pid 6543] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6541] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6540] <... prctl resumed>) = 0 [pid 6539] close(3 [pid 6538] setpgid(0, 0 [pid 6533] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6542] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6543] <... socket resumed>) = 3 [pid 6542] <... prctl resumed>) = 0 [pid 6541] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6540] setpgid(0, 0 [pid 6539] <... close resumed>) = 0 [pid 6538] <... setpgid resumed>) = 0 [pid 6533] <... futex resumed>) = 0 [pid 6543] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6542] setpgid(0, 0 [pid 6541] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6540] <... setpgid resumed>) = 0 [pid 6539] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6533] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6543] <... futex resumed>) = 1 [pid 6542] <... setpgid resumed>) = 0 [pid 6541] <... setsockopt resumed>) = 0 [pid 6540] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6539] <... futex resumed>) = 0 [pid 6538] <... openat resumed>) = 3 [pid 6537] <... futex resumed>) = 0 [pid 6543] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6541] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6540] <... openat resumed>) = 3 [pid 6539] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6538] write(3, "1000", 4 [pid 6537] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6543] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6542] <... openat resumed>) = 3 [pid 6541] <... futex resumed>) = 1 [pid 6540] write(3, "1000", 4 [pid 6539] <... mmap resumed>) = 0x7fc1280a9000 [pid 6538] <... write resumed>) = 4 [pid 6537] <... futex resumed>) = 0 [pid 6533] <... futex resumed>) = 0 [pid 6543] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6542] write(3, "1000", 4 [pid 6541] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6540] <... write resumed>) = 4 [pid 6539] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6538] close(3 [pid 6537] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6533] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6543] <... setsockopt resumed>) = 0 [pid 6542] <... write resumed>) = 4 [pid 6541] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6540] close(3 [pid 6539] <... mprotect resumed>) = 0 [pid 6538] <... close resumed>) = 0 [pid 6533] <... futex resumed>) = 0 [pid 6543] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6542] close(3 [pid 6541] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6540] <... close resumed>) = 0 [pid 6539] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6538] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6533] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6544 attached [pid 6543] <... futex resumed>) = 1 [pid 6542] <... close resumed>) = 0 [pid 6541] <... setsockopt resumed>) = 0 [pid 6540] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6538] <... futex resumed>) = 0 [pid 6537] <... futex resumed>) = 0 [ 226.978754][ T6529] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 226.986722][ T6529] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 226.994691][ T6529] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 227.002673][ T6529] [pid 6544] set_robust_list(0x7fc1280c99e0, 24 [pid 6543] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6542] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6541] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6540] <... futex resumed>) = 0 [pid 6539] <... clone resumed>, parent_tid=[6544], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6544 [pid 6538] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6537] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6544] <... set_robust_list resumed>) = 0 [pid 6543] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6542] <... futex resumed>) = 0 [pid 6541] <... futex resumed>) = 1 [pid 6540] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6539] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6538] <... mmap resumed>) = 0x7fc1280a9000 [pid 6537] <... futex resumed>) = 0 [pid 6533] <... futex resumed>) = 0 [pid 6544] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6543] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6542] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6541] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6540] <... mmap resumed>) = 0x7fc1280a9000 [pid 6539] <... futex resumed>) = 0 [pid 6538] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6537] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6533] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6544] <... socket resumed>) = 3 [pid 6543] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6542] <... mmap resumed>) = 0x7fc1280a9000 [pid 6541] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6540] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6539] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6538] <... mprotect resumed>) = 0 [pid 6533] <... futex resumed>) = 0 [pid 6544] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6543] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6542] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6541] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6540] <... mprotect resumed>) = 0 [pid 6539] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6538] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6533] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6544] <... futex resumed>) = 0 [pid 6543] <... futex resumed>) = 1 [pid 6542] <... mprotect resumed>) = 0 [pid 6540] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6539] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6537] <... futex resumed>) = 0 [pid 6543] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6539] <... futex resumed>) = 0 [pid 6538] <... clone resumed>, parent_tid=[6545], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6545 [pid 6537] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6544] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6543] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6542] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6540] <... clone resumed>, parent_tid=[6546], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6546 [pid 6539] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6538] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6537] <... futex resumed>) = 0 [pid 6544] <... setsockopt resumed>) = 0 [pid 6543] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6540] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6538] <... futex resumed>) = 0 [pid 6537] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6544] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6543] <... setsockopt resumed>) = 0 [pid 6542] <... clone resumed>, parent_tid=[6547], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6547 [pid 6540] <... futex resumed>) = 0 [pid 6538] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6547 attached [pid 6544] <... futex resumed>) = 1 [pid 6543] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6542] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6541] <... sendto resumed>) = 1 [pid 6540] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6539] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6545 attached ./strace-static-x86_64: Process 6546 attached [pid 6547] set_robust_list(0x7fc1280c99e0, 24 [pid 6544] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6543] <... futex resumed>) = 1 [pid 6542] <... futex resumed>) = 0 [pid 6541] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6539] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6537] <... futex resumed>) = 0 [pid 6547] <... set_robust_list resumed>) = 0 [pid 6544] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6543] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6542] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6541] <... futex resumed>) = 1 [pid 6539] <... futex resumed>) = 0 [pid 6537] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6533] <... futex resumed>) = 0 [pid 6546] set_robust_list(0x7fc1280c99e0, 24 [pid 6545] set_robust_list(0x7fc1280c99e0, 24 [pid 6547] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6544] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6543] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6541] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6539] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6537] <... futex resumed>) = 0 [pid 6533] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6546] <... set_robust_list resumed>) = 0 [pid 6545] <... set_robust_list resumed>) = 0 [pid 6547] <... socket resumed>) = 3 [pid 6544] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6543] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6541] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6537] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6533] <... futex resumed>) = 0 [pid 6547] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6546] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6545] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6544] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6543] <... sendto resumed>) = 1 [pid 6541] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6533] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6547] <... futex resumed>) = 1 [pid 6546] <... socket resumed>) = 3 [pid 6545] <... socket resumed>) = 3 [pid 6544] <... futex resumed>) = 1 [pid 6543] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6542] <... futex resumed>) = 0 [pid 6541] <... sendto resumed>) = 1 [pid 6539] <... futex resumed>) = 0 [pid 6547] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6546] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6545] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6544] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6543] <... futex resumed>) = 1 [pid 6542] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6541] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6539] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6537] <... futex resumed>) = 0 [pid 6547] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6546] <... futex resumed>) = 1 [pid 6545] <... futex resumed>) = 1 [pid 6544] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6543] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6542] <... futex resumed>) = 0 [pid 6541] <... futex resumed>) = 1 [pid 6540] <... futex resumed>) = 0 [pid 6539] <... futex resumed>) = 0 [pid 6538] <... futex resumed>) = 0 [pid 6537] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6533] <... futex resumed>) = 0 [pid 6547] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6546] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6545] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6544] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6543] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6542] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6541] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6540] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6539] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6538] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6537] <... futex resumed>) = 0 [pid 6533] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6547] <... setsockopt resumed>) = 0 [pid 6546] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6545] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6544] <... setsockopt resumed>) = 0 [pid 6543] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6541] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6540] <... futex resumed>) = 0 [pid 6538] <... futex resumed>) = 0 [pid 6537] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6533] <... futex resumed>) = 0 [pid 6547] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6546] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6545] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6544] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6543] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6541] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6540] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6538] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6533] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6547] <... futex resumed>) = 1 [pid 6546] <... setsockopt resumed>) = 0 [pid 6545] <... setsockopt resumed>) = 0 [pid 6544] <... futex resumed>) = 1 [pid 6543] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6542] <... futex resumed>) = 0 [pid 6541] <... openat resumed>) = 4 [pid 6539] <... futex resumed>) = 0 [pid 6547] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6546] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6545] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6544] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6543] <... futex resumed>) = 1 [pid 6542] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6541] write(4, "5", 1 [pid 6539] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6537] <... futex resumed>) = 0 [pid 6547] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6546] <... futex resumed>) = 1 [pid 6545] <... futex resumed>) = 1 [pid 6544] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6543] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6542] <... futex resumed>) = 0 [pid 6541] <... write resumed>) = 1 [pid 6540] <... futex resumed>) = 0 [pid 6539] <... futex resumed>) = 0 [pid 6538] <... futex resumed>) = 0 [pid 6537] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6547] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6546] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6545] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6544] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6543] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6542] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6541] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6540] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6539] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6538] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6537] <... futex resumed>) = 0 [pid 6547] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6546] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6545] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6543] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6540] <... futex resumed>) = 0 [pid 6538] <... futex resumed>) = 0 [pid 6537] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6547] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6546] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6545] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6544] <... sendto resumed>) = 1 [pid 6543] <... openat resumed>) = 4 [pid 6542] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6541] <... setsockopt resumed>) = 0 [pid 6540] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6538] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6547] <... futex resumed>) = 0 [pid 6546] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6545] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6544] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6543] write(4, "5", 1 [pid 6542] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6541] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6547] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6546] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6545] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6544] <... futex resumed>) = 1 [pid 6543] <... write resumed>) = 1 [pid 6542] <... futex resumed>) = 0 [pid 6541] <... futex resumed>) = 1 [pid 6539] <... futex resumed>) = 0 [pid 6533] <... futex resumed>) = 0 [pid 6547] <... setsockopt resumed>) = 0 [pid 6546] <... futex resumed>) = 1 [pid 6545] <... futex resumed>) = 1 [pid 6544] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6543] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6542] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6541] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6540] <... futex resumed>) = 0 [pid 6539] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6538] <... futex resumed>) = 0 [pid 6533] exit_group(0 [pid 6547] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6546] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6545] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6544] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6543] <... setsockopt resumed>) = 0 [pid 6542] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6541] <... futex resumed>) = ? [pid 6540] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6539] <... futex resumed>) = 0 [pid 6538] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6533] <... exit_group resumed>) = ? [pid 6547] <... futex resumed>) = 0 [pid 6546] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6545] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6544] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6543] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6542] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6541] +++ exited with 0 +++ [pid 6540] <... futex resumed>) = 0 [pid 6539] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6538] <... futex resumed>) = 0 [pid 6547] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6546] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6545] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6544] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6542] <... futex resumed>) = 0 [pid 6533] +++ exited with 0 +++ [pid 6546] <... setsockopt resumed>) = 0 [pid 6545] <... setsockopt resumed>) = 0 [pid 6544] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6542] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6546] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6545] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6544] <... futex resumed>) = 1 [pid 6540] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6539] <... futex resumed>) = 0 [pid 6538] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6533, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 6547] <... sendto resumed>) = 1 [pid 6546] <... futex resumed>) = 0 [pid 6545] <... futex resumed>) = 0 [pid 6544] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6540] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6539] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6546] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6545] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6544] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6539] <... futex resumed>) = 0 [pid 6544] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6539] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3614] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6548 [pid 6544] <... openat resumed>) = 4 [pid 6544] write(4, "5", 1) = 1 [pid 6544] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [ 227.115895][ T6543] FAULT_INJECTION: forcing a failure. [ 227.115895][ T6543] name fail_futex, interval 1, probability 0, space 0, times 0 [ 227.130908][ T6543] CPU: 0 PID: 6543 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 227.139741][ T6544] FAULT_INJECTION: forcing a failure. [ 227.139741][ T6544] name fail_futex, interval 1, probability 0, space 0, times 0 [ 227.141434][ T6543] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [pid 6544] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6542] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6542] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6542] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc128088000 [pid 6542] mprotect(0x7fc128089000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6542] clone(child_stack=0x7fc1280a83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6549], tls=0x7fc1280a8700, child_tidptr=0x7fc1280a89d0) = 6549 [pid 6542] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 227.141451][ T6543] Call Trace: [ 227.141459][ T6543] [ 227.141468][ T6543] dump_stack_lvl+0xcd/0x134 [ 227.141502][ T6543] should_fail.cold+0x5/0xa [ 227.141531][ T6543] get_futex_key+0x5b2/0x1c50 [ 227.141556][ T6543] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 227.141586][ T6543] ? futex_setup_timer+0xf0/0xf0 [ 227.195280][ T6543] futex_wake+0xe4/0x490 [ 227.199555][ T6543] ? futex_wake_mark+0x1a0/0x1a0 [ 227.204516][ T6543] ? ptrace_stop.part.0+0x5ec/0xa80 [ 227.209731][ T6543] ? do_raw_spin_lock+0x120/0x2a0 [pid 6542] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6539] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6539] exit_group(0) = ? ./strace-static-x86_64: Process 6549 attached [pid 6549] set_robust_list(0x7fc1280a89e0, 24) = 0 [pid 6549] sendto(3, "\x01", 1, 0, NULL, 0) = -1 ECONNREFUSED (Connection refused) [pid 6549] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6542] <... futex resumed>) = 0 [pid 6549] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6542] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [ 227.214784][ T6543] ? rwlock_bug.part.0+0x90/0x90 [ 227.219763][ T6543] ? _raw_spin_lock_irq+0x41/0x50 [ 227.224837][ T6543] do_futex+0x266/0x300 [ 227.225859][ T6549] FAULT_INJECTION: forcing a failure. [ 227.225859][ T6549] name fail_futex, interval 1, probability 0, space 0, times 0 [ 227.229006][ T6543] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 227.229035][ T6543] ? find_held_lock+0x2d/0x110 [ 227.252471][ T6543] __x64_sys_futex+0x1b0/0x4a0 [ 227.257272][ T6543] ? do_futex+0x300/0x300 [ 227.261633][ T6543] ? _raw_spin_unlock_irq+0x1f/0x40 [ 227.267064][ T6543] ? lockdep_hardirqs_on+0x79/0x100 [ 227.272310][ T6543] ? _raw_spin_unlock_irq+0x2a/0x40 [ 227.273852][ T6545] FAULT_INJECTION: forcing a failure. [ 227.273852][ T6545] name fail_futex, interval 1, probability 0, space 0, times 0 [ 227.277515][ T6543] ? ptrace_notify+0xfa/0x140 [ 227.277547][ T6543] do_syscall_64+0x35/0xb0 [ 227.277573][ T6543] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 227.277602][ T6543] RIP: 0033:0x7fc128117db9 [ 227.277621][ T6543] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 227.277643][ T6543] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 227.338146][ T6543] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 227.346141][ T6543] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 227.354131][ T6543] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 227.362141][ T6543] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 227.370412][ T6543] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 227.378422][ T6543] [ 227.381469][ T6545] CPU: 1 PID: 6545 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 227.391992][ T6545] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 227.402060][ T6545] Call Trace: [ 227.405341][ T6545] [ 227.408274][ T6545] dump_stack_lvl+0xcd/0x134 [ 227.412880][ T6545] should_fail.cold+0x5/0xa [ 227.417392][ T6545] get_futex_key+0x5b2/0x1c50 [ 227.422075][ T6545] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 227.428080][ T6545] ? futex_setup_timer+0xf0/0xf0 [ 227.433044][ T6545] futex_wake+0xe4/0x490 [ 227.437308][ T6545] ? futex_wake_mark+0x1a0/0x1a0 [ 227.442261][ T6545] ? ptrace_stop.part.0+0x5ec/0xa80 [ 227.447488][ T6545] ? do_raw_spin_lock+0x120/0x2a0 [ 227.452534][ T6545] ? rwlock_bug.part.0+0x90/0x90 [ 227.457472][ T6545] ? _raw_spin_lock_irq+0x41/0x50 [ 227.462528][ T6545] do_futex+0x266/0x300 [ 227.466695][ T6545] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 227.472588][ T6545] ? find_held_lock+0x2d/0x110 [ 227.477362][ T6545] __x64_sys_futex+0x1b0/0x4a0 [ 227.482142][ T6545] ? do_futex+0x300/0x300 [ 227.486471][ T6545] ? _raw_spin_unlock_irq+0x1f/0x40 [ 227.491674][ T6545] ? lockdep_hardirqs_on+0x79/0x100 [ 227.496883][ T6545] ? _raw_spin_unlock_irq+0x2a/0x40 [ 227.502082][ T6545] ? ptrace_notify+0xfa/0x140 [ 227.506764][ T6545] do_syscall_64+0x35/0xb0 [ 227.511186][ T6545] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 227.517086][ T6545] RIP: 0033:0x7fc128117db9 [ 227.521510][ T6545] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 227.541116][ T6545] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 227.549534][ T6545] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 227.557504][ T6545] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [pid 6549] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6542] <... futex resumed>) = 0 [pid 6549] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6542] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6549] <... openat resumed>) = 4 [pid 6549] write(4, "5", 1) = 1 [pid 6549] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6549] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6538] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6538] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6545] <... futex resumed>) = 0 [pid 6538] <... futex resumed>) = 1 [pid 6545] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6538] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6545] <... sendto resumed>) = 1 [pid 6545] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6538] <... futex resumed>) = 0 [pid 6545] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6538] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6545] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6538] <... futex resumed>) = 0 [pid 6545] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6538] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6545] <... futex resumed>) = 0 [pid 6538] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6545] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6538] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6545] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6538] <... futex resumed>) = 0 [pid 6545] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6538] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6545] <... openat resumed>) = 4 [pid 6545] write(4, "5", 1) = 1 [pid 6542] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6545] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6545] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6538] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6538] exit_group(0) = ? [ 227.565471][ T6545] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 227.573439][ T6545] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 227.581411][ T6545] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 227.589392][ T6545] [ 227.594210][ T6549] CPU: 1 PID: 6549 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 227.604747][ T6549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 227.614801][ T6549] Call Trace: [ 227.618078][ T6549] [ 227.621005][ T6549] dump_stack_lvl+0xcd/0x134 [ 227.625604][ T6549] should_fail.cold+0x5/0xa [ 227.630200][ T6549] get_futex_key+0x5b2/0x1c50 [ 227.634882][ T6549] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 227.640879][ T6549] ? futex_setup_timer+0xf0/0xf0 [ 227.645922][ T6549] futex_wake+0xe4/0x490 [ 227.650180][ T6549] ? futex_wake_mark+0x1a0/0x1a0 [ 227.655120][ T6549] ? ptrace_stop.part.0+0x5ec/0xa80 [ 227.660319][ T6549] ? do_raw_spin_lock+0x120/0x2a0 [ 227.665345][ T6549] ? rwlock_bug.part.0+0x90/0x90 [ 227.670280][ T6549] ? _raw_spin_lock_irq+0x41/0x50 [ 227.675323][ T6549] do_futex+0x266/0x300 [ 227.679481][ T6549] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 227.685371][ T6549] ? find_held_lock+0x2d/0x110 [ 227.690153][ T6549] __x64_sys_futex+0x1b0/0x4a0 [ 227.694921][ T6549] ? do_futex+0x300/0x300 [ 227.699248][ T6549] ? _raw_spin_unlock_irq+0x1f/0x40 [ 227.704469][ T6549] ? lockdep_hardirqs_on+0x79/0x100 [ 227.709756][ T6549] ? _raw_spin_unlock_irq+0x2a/0x40 [ 227.714955][ T6549] ? ptrace_notify+0xfa/0x140 [ 227.719636][ T6549] do_syscall_64+0x35/0xb0 [ 227.724062][ T6549] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 227.729962][ T6549] RIP: 0033:0x7fc128117db9 [ 227.734387][ T6549] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 227.753993][ T6549] RSP: 002b:00007fc1280a82e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca ./strace-static-x86_64: Process 6548 attached [pid 6547] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6543] <... futex resumed>) = -1 EFAULT (Bad address) [pid 6540] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6537] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6548] set_robust_list(0x5555564f35e0, 24 [pid 6547] <... futex resumed>) = 0 [pid 6546] <... futex resumed>) = 0 [pid 6542] exit_group(0 [pid 6540] <... futex resumed>) = 1 [pid 6537] exit_group(0 [pid 6546] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6543] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6542] <... exit_group resumed>) = ? [pid 6546] <... sendto resumed>) = 1 [pid 6546] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 227.762421][ T6549] RAX: ffffffffffffffda RBX: 00007fc1281a04b0 RCX: 00007fc128117db9 [ 227.770393][ T6549] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04bc [ 227.778365][ T6549] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 227.786334][ T6549] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280a82f0 [ 227.794321][ T6549] R13: 00007fc1281a04b8 R14: 0100000000000000 R15: 0000000000000001 [ 227.802306][ T6549] [pid 6546] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6549] <... futex resumed>) = ? [pid 6549] +++ exited with 0 +++ [pid 6545] <... futex resumed>) = ? [pid 6545] +++ exited with 0 +++ [pid 6538] +++ exited with 0 +++ [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6538, si_uid=0, si_status=0, si_utime=0, si_stime=24} --- [pid 3610] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6550 ./strace-static-x86_64: Process 6550 attached [ 227.810157][ T6544] CPU: 0 PID: 6544 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 227.820710][ T6544] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 227.830795][ T6544] Call Trace: [ 227.834089][ T6544] [ 227.837040][ T6544] dump_stack_lvl+0xcd/0x134 [ 227.841665][ T6544] should_fail.cold+0x5/0xa [ 227.846203][ T6544] get_futex_key+0x5b2/0x1c50 [ 227.850908][ T6544] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 227.856923][ T6544] ? futex_setup_timer+0xf0/0xf0 [ 227.861902][ T6544] futex_wake+0xe4/0x490 [ 227.866176][ T6544] ? futex_wake_mark+0x1a0/0x1a0 [ 227.871139][ T6544] ? ptrace_stop.part.0+0x5ec/0xa80 [ 227.876365][ T6544] ? do_raw_spin_lock+0x120/0x2a0 [ 227.881417][ T6544] ? rwlock_bug.part.0+0x90/0x90 [ 227.886416][ T6544] ? _raw_spin_lock_irq+0x41/0x50 [ 227.891474][ T6544] do_futex+0x266/0x300 [ 227.895655][ T6544] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 227.901572][ T6544] ? find_held_lock+0x2d/0x110 [ 227.906461][ T6544] __x64_sys_futex+0x1b0/0x4a0 [ 227.911256][ T6544] ? do_futex+0x300/0x300 [ 227.915606][ T6544] ? _raw_spin_unlock_irq+0x1f/0x40 [ 227.920824][ T6544] ? lockdep_hardirqs_on+0x79/0x100 [ 227.926027][ T6544] ? _raw_spin_unlock_irq+0x2a/0x40 [ 227.931319][ T6544] ? ptrace_notify+0xfa/0x140 [ 227.936013][ T6544] do_syscall_64+0x35/0xb0 [ 227.940452][ T6544] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 227.946440][ T6544] RIP: 0033:0x7fc128117db9 [ 227.950860][ T6544] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 227.970556][ T6544] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 227.979502][ T6544] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 227.987471][ T6544] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 227.995439][ T6544] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 228.003410][ T6544] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 228.011378][ T6544] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [pid 6550] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6550] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6550] setpgid(0, 0) = 0 [pid 6550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6550] write(3, "1000", 4) = 4 [pid 6550] close(3) = 0 [pid 6550] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6550] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6550] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6550] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6551], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6551 [pid 6550] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6550] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6551 attached [pid 6551] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6551] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6551] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6550] <... futex resumed>) = 0 [pid 6551] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6550] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6551] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6550] <... futex resumed>) = 0 [pid 6551] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6550] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6551] <... setsockopt resumed>) = 0 [pid 6551] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6550] <... futex resumed>) = 0 [pid 6551] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6550] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6551] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6550] <... futex resumed>) = 0 [pid 6551] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6550] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6551] <... setsockopt resumed>) = 0 [pid 6551] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6550] <... futex resumed>) = 0 [pid 6551] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6550] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6551] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6550] <... futex resumed>) = 0 [pid 6551] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6550] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6551] <... setsockopt resumed>) = 0 [pid 6551] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6550] <... futex resumed>) = 0 [pid 6551] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6550] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6551] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6550] <... futex resumed>) = 0 [pid 6551] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6550] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6551] <... sendto resumed>) = 1 [pid 6551] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6550] <... futex resumed>) = 0 [pid 6551] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6550] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6551] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6550] <... futex resumed>) = 0 [pid 6551] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6550] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6551] <... sendto resumed>) = 1 [pid 6551] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6550] <... futex resumed>) = 0 [pid 6551] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6550] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6551] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6550] <... futex resumed>) = 0 [pid 6551] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6550] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6551] <... openat resumed>) = 4 [pid 6551] write(4, "5", 1) = 1 [pid 6551] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6551] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6550] <... futex resumed>) = 0 [pid 6551] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6550] exit_group(0 [pid 6551] <... futex resumed>) = ? [pid 6550] <... exit_group resumed>) = ? [pid 6551] +++ exited with 0 +++ [pid 6550] +++ exited with 0 +++ [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6550, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3610] restart_syscall(<... resuming interrupted clone ...> [pid 6548] <... set_robust_list resumed>) = 0 [pid 6540] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6537] <... exit_group resumed>) = ? [pid 3610] <... restart_syscall resumed>) = 0 [pid 6548] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6547] +++ exited with 0 +++ [pid 6542] +++ exited with 0 +++ [pid 6540] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6548] <... prctl resumed>) = 0 [pid 6548] setpgid(0, 0 [pid 6540] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6548] <... setpgid resumed>) = 0 [pid 6546] <... futex resumed>) = 0 [pid 6540] <... futex resumed>) = 1 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6542, si_uid=0, si_status=0, si_utime=0, si_stime=25} --- [pid 6548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6546] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6548] <... openat resumed>) = 3 [pid 6546] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6540] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6548] write(3, "1000", 4 [pid 6546] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3610] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6552 [pid 6548] <... write resumed>) = 4 [pid 6546] <... futex resumed>) = 0 [pid 6540] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6548] close(3 [pid 6546] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6540] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6548] <... close resumed>) = 0 [pid 6546] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6544] <... futex resumed>) = ? [pid 6543] <... futex resumed>) = ? [pid 6548] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6546] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6540] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6553 ./strace-static-x86_64: Process 6553 attached ./strace-static-x86_64: Process 6552 attached [pid 6548] <... futex resumed>) = 0 [pid 6546] <... openat resumed>) = 4 [pid 6543] +++ exited with 0 +++ [pid 6540] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6537] +++ exited with 0 +++ [pid 6548] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6546] write(4, "5", 1 [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6537, si_uid=0, si_status=0, si_utime=0, si_stime=28} --- [pid 6548] <... mmap resumed>) = 0x7fc1280a9000 [pid 6546] <... write resumed>) = 1 [pid 6544] +++ exited with 0 +++ [pid 6539] +++ exited with 0 +++ [pid 3608] restart_syscall(<... resuming interrupted clone ...> [pid 6548] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6546] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6553] set_robust_list(0x5555564f35e0, 24 [pid 6552] set_robust_list(0x5555564f35e0, 24 [pid 6548] <... mprotect resumed>) = 0 [pid 6546] <... setsockopt resumed>) = 0 [pid 3608] <... restart_syscall resumed>) = 0 [pid 6553] <... set_robust_list resumed>) = 0 [pid 6552] <... set_robust_list resumed>) = 0 [pid 6548] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [ 228.019360][ T6544] [pid 6546] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6539, si_uid=0, si_status=0, si_utime=0, si_stime=28} --- ./strace-static-x86_64: Process 6554 attached [pid 6553] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6552] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6554] set_robust_list(0x7fc1280c99e0, 24 [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6554] <... set_robust_list resumed>) = 0 [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6555 [pid 6554] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3608] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6556 [pid 6553] <... prctl resumed>) = 0 [pid 6553] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 6555 attached [pid 6553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6552] <... prctl resumed>) = 0 [pid 6548] <... clone resumed>, parent_tid=[6554], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6554 [pid 6552] setpgid(0, 0 [pid 6548] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6554] <... futex resumed>) = 0 [pid 6552] <... setpgid resumed>) = 0 [pid 6548] <... futex resumed>) = 1 [pid 6554] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6553] <... openat resumed>) = 3 [pid 6552] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6548] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6555] set_robust_list(0x5555564f35e0, 24 [pid 6554] <... socket resumed>) = 3 [pid 6552] <... openat resumed>) = 3 [pid 6554] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6553] write(3, "1000", 4 [pid 6552] write(3, "1000", 4 [pid 6548] <... futex resumed>) = 0 [pid 6554] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6553] <... write resumed>) = 4 [pid 6552] <... write resumed>) = 4 [pid 6548] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6554] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6553] close(3 [pid 6552] close(3 [pid 6548] <... futex resumed>) = 0 [pid 6554] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6553] <... close resumed>) = 0 [pid 6552] <... close resumed>) = 0 [pid 6548] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6554] <... setsockopt resumed>) = 0 [pid 6553] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6552] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6555] <... set_robust_list resumed>) = 0 [pid 6554] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6553] <... futex resumed>) = 0 [pid 6552] <... futex resumed>) = 0 [pid 6554] <... futex resumed>) = 1 [pid 6553] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6552] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6548] <... futex resumed>) = 0 [pid 6555] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6554] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6553] <... mmap resumed>) = 0x7fc1280a9000 [pid 6552] <... mmap resumed>) = 0x7fc1280a9000 [pid 6548] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6554] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6553] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6552] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6548] <... futex resumed>) = 0 [pid 6555] <... prctl resumed>) = 0 [pid 6554] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6553] <... mprotect resumed>) = 0 [pid 6552] <... mprotect resumed>) = 0 [pid 6548] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6556 attached [pid 6555] setpgid(0, 0 [pid 6554] <... setsockopt resumed>) = 0 [pid 6553] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6556] set_robust_list(0x5555564f35e0, 24 [pid 6555] <... setpgid resumed>) = 0 [pid 6556] <... set_robust_list resumed>) = 0 [pid 6555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6553] <... clone resumed>, parent_tid=[6557], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6557 [pid 6556] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6555] <... openat resumed>) = 3 [pid 6553] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6556] <... prctl resumed>) = 0 [pid 6555] write(3, "1000", 4 [pid 6553] <... futex resumed>) = 0 [pid 6556] setpgid(0, 0 [pid 6555] <... write resumed>) = 4 [pid 6553] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6556] <... setpgid resumed>) = 0 [pid 6555] close(3 [pid 6556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6555] <... close resumed>) = 0 [pid 6556] <... openat resumed>) = 3 [pid 6555] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6556] write(3, "1000", 4 [pid 6555] <... futex resumed>) = 0 [pid 6556] <... write resumed>) = 4 [pid 6555] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6556] close(3 [pid 6555] <... mmap resumed>) = 0x7fc1280a9000 [pid 6556] <... close resumed>) = 0 [pid 6555] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6540] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6556] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6555] <... mprotect resumed>) = 0 [pid 6540] exit_group(0 [pid 6556] <... futex resumed>) = 0 [pid 6555] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6540] <... exit_group resumed>) = ? [pid 6556] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [ 228.042771][ T6546] FAULT_INJECTION: forcing a failure. [ 228.042771][ T6546] name fail_futex, interval 1, probability 0, space 0, times 0 [ 228.066151][ T6546] CPU: 1 PID: 6546 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 228.076786][ T6546] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 228.086954][ T6546] Call Trace: [ 228.090260][ T6546] [pid 6555] <... clone resumed>, parent_tid=[6558], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6558 [pid 6556] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6555] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6556] <... mprotect resumed>) = 0 [pid 6555] <... futex resumed>) = 0 [pid 6556] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6555] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6556] <... clone resumed>, parent_tid=[6559], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6559 [pid 6556] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6556] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6559 attached [pid 6559] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6559] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6559] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6556] <... futex resumed>) = 0 [pid 6559] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6556] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6559] <... setsockopt resumed>) = 0 [pid 6556] <... futex resumed>) = 0 [pid 6559] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6556] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6559] <... futex resumed>) = 0 [pid 6556] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6559] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6556] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6559] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6556] <... futex resumed>) = 0 [pid 6559] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6556] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6559] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6559] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6556] <... futex resumed>) = 0 [pid 6559] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6556] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6559] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6556] <... futex resumed>) = 0 [pid 6559] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6556] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6559] <... setsockopt resumed>) = 0 [pid 6559] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6556] <... futex resumed>) = 0 [pid 6559] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6556] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6559] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6556] <... futex resumed>) = 0 [pid 6553] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6559] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6556] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6553] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6559] <... sendto resumed>) = 1 [pid 6553] <... futex resumed>) = 0 [pid 6559] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6553] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6559] <... futex resumed>) = 1 [pid 6556] <... futex resumed>) = 0 [pid 6553] <... mmap resumed>) = 0x7fc128088000 [pid 6559] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6556] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6553] mprotect(0x7fc128089000, 131072, PROT_READ|PROT_WRITE [pid 6559] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6556] <... futex resumed>) = 0 [pid 6553] <... mprotect resumed>) = 0 [pid 6559] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6556] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6553] clone(child_stack=0x7fc1280a83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6559] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [ 228.093214][ T6546] dump_stack_lvl+0xcd/0x134 [ 228.097848][ T6546] should_fail.cold+0x5/0xa [ 228.102386][ T6546] get_futex_key+0x5b2/0x1c50 [ 228.107089][ T6546] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 228.113103][ T6546] ? futex_setup_timer+0xf0/0xf0 [ 228.118080][ T6546] futex_wake+0xe4/0x490 [ 228.122357][ T6546] ? futex_wake_mark+0x1a0/0x1a0 [ 228.127345][ T6546] ? ptrace_stop.part.0+0x5ec/0xa80 [ 228.132582][ T6546] ? do_raw_spin_lock+0x120/0x2a0 [ 228.137642][ T6546] ? rwlock_bug.part.0+0x90/0x90 [pid 6559] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6553] <... clone resumed>, parent_tid=[6560], tls=0x7fc1280a8700, child_tidptr=0x7fc1280a89d0) = 6560 [pid 6559] <... futex resumed>) = 1 [pid 6556] <... futex resumed>) = 0 [pid 6553] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6559] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6556] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6553] <... futex resumed>) = 0 [pid 6559] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6556] <... futex resumed>) = 0 [pid 6555] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6553] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6559] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6556] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6555] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6559] <... openat resumed>) = 4 [pid 6555] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6560 attached [pid 6559] write(4, "5", 1 [pid 6555] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6560] set_robust_list(0x7fc1280a89e0, 24 [pid 6559] <... write resumed>) = 1 [pid 6555] <... mmap resumed>) = 0x7fc128088000 [pid 6560] <... set_robust_list resumed>) = 0 [pid 6559] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6555] mprotect(0x7fc128089000, 131072, PROT_READ|PROT_WRITE [pid 6560] setsockopt(-1, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6559] <... setsockopt resumed>) = 0 [pid 6555] <... mprotect resumed>) = 0 [ 228.142614][ T6546] ? _raw_spin_lock_irq+0x41/0x50 [ 228.147677][ T6546] do_futex+0x266/0x300 [ 228.151865][ T6546] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 228.157789][ T6546] ? find_held_lock+0x2d/0x110 [ 228.160213][ T6559] FAULT_INJECTION: forcing a failure. [ 228.160213][ T6559] name fail_futex, interval 1, probability 0, space 0, times 0 [ 228.162576][ T6546] __x64_sys_futex+0x1b0/0x4a0 [ 228.162613][ T6546] ? do_futex+0x300/0x300 [ 228.184457][ T6546] ? _raw_spin_unlock_irq+0x1f/0x40 [ 228.189691][ T6546] ? lockdep_hardirqs_on+0x79/0x100 [ 228.194898][ T6546] ? _raw_spin_unlock_irq+0x2a/0x40 [ 228.200110][ T6546] ? ptrace_notify+0xfa/0x140 [ 228.204802][ T6546] do_syscall_64+0x35/0xb0 [ 228.209227][ T6546] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 228.215131][ T6546] RIP: 0033:0x7fc128117db9 [ 228.219547][ T6546] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [pid 6560] <... setsockopt resumed>) = -1 EBADF (Bad file descriptor) [pid 6559] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [ 228.239765][ T6546] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 228.248178][ T6546] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 228.256146][ T6546] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 228.264117][ T6546] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 228.272091][ T6546] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 228.280070][ T6546] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 228.288058][ T6546] [pid 6555] clone(child_stack=0x7fc1280a83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 6558 attached ./strace-static-x86_64: Process 6557 attached [pid 6560] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6556] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6554] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6553] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6552] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6546] <... futex resumed>) = ? [pid 6560] <... futex resumed>) = 0 [pid 6555] <... clone resumed>, parent_tid=[6561], tls=0x7fc1280a8700, child_tidptr=0x7fc1280a89d0) = 6561 ./strace-static-x86_64: Process 6561 attached [pid 6560] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6555] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6552] <... clone resumed>, parent_tid=[6562], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6562 [pid 6561] set_robust_list(0x7fc1280a89e0, 24 [pid 6555] <... futex resumed>) = 0 [pid 6552] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6561] <... set_robust_list resumed>) = 0 [pid 6555] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6552] <... futex resumed>) = 0 [pid 6561] setsockopt(-1, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6552] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6562 attached [pid 6561] <... setsockopt resumed>) = -1 EBADF (Bad file descriptor) [pid 6562] set_robust_list(0x7fc1280c99e0, 24 [pid 6561] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6562] <... set_robust_list resumed>) = 0 [pid 6561] <... futex resumed>) = 1 [pid 6555] <... futex resumed>) = 0 [pid 6562] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6561] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6555] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6562] <... socket resumed>) = 3 [pid 6561] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6555] <... futex resumed>) = 0 [pid 6562] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6561] setsockopt(-1, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6555] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6562] <... futex resumed>) = 1 [pid 6561] <... setsockopt resumed>) = -1 EBADF (Bad file descriptor) [pid 6552] <... futex resumed>) = 0 [pid 6562] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6561] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6552] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6562] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6561] <... futex resumed>) = 1 [pid 6555] <... futex resumed>) = 0 [pid 6552] <... futex resumed>) = 0 [pid 6562] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6561] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6555] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6552] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6562] <... setsockopt resumed>) = 0 [pid 6561] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6555] <... futex resumed>) = 0 [pid 6562] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6561] setsockopt(-1, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6555] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6562] <... futex resumed>) = 1 [pid 6561] <... setsockopt resumed>) = -1 EBADF (Bad file descriptor) [pid 6552] <... futex resumed>) = 0 [pid 6562] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6561] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6552] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6562] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6561] <... futex resumed>) = 1 [pid 6555] <... futex resumed>) = 0 [pid 6552] <... futex resumed>) = 0 [pid 6562] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6561] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6555] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6552] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6562] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6561] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6555] <... futex resumed>) = 0 [pid 6562] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6561] sendto(-1, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6555] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6562] <... futex resumed>) = 1 [pid 6561] <... sendto resumed>) = -1 EBADF (Bad file descriptor) [pid 6552] <... futex resumed>) = 0 [ 228.292482][ T6559] CPU: 1 PID: 6559 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 228.303019][ T6559] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 228.313106][ T6559] Call Trace: [ 228.316405][ T6559] [ 228.319359][ T6559] dump_stack_lvl+0xcd/0x134 [ 228.323987][ T6559] should_fail.cold+0x5/0xa [ 228.328530][ T6559] get_futex_key+0x5b2/0x1c50 [ 228.333241][ T6559] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 228.339254][ T6559] ? futex_setup_timer+0xf0/0xf0 [pid 6562] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6561] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6558] set_robust_list(0x7fc1280c99e0, 24 [pid 6552] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6562] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6561] <... futex resumed>) = 1 [pid 6558] <... set_robust_list resumed>) = 0 [pid 6555] <... futex resumed>) = 0 [pid 6552] <... futex resumed>) = 0 [pid 6562] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6561] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6558] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6555] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6552] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6562] <... setsockopt resumed>) = 0 [pid 6561] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6558] <... socket resumed>) = 3 [pid 6555] <... futex resumed>) = 0 [pid 6562] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6561] sendto(-1, "\x01", 1, 0, NULL, 0 [pid 6558] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6555] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6562] <... futex resumed>) = 1 [pid 6561] <... sendto resumed>) = -1 EBADF (Bad file descriptor) [pid 6558] <... futex resumed>) = 0 [pid 6552] <... futex resumed>) = 0 [pid 6562] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6561] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6558] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6552] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6562] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6561] <... futex resumed>) = 1 [pid 6555] <... futex resumed>) = 0 [pid 6552] <... futex resumed>) = 0 [pid 6562] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6561] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6555] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6552] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6562] <... sendto resumed>) = 1 [pid 6558] <... futex resumed>) = 0 [pid 6555] <... futex resumed>) = 1 [pid 6562] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6558] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6555] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6562] <... futex resumed>) = 1 [pid 6558] <... openat resumed>) = 4 [pid 6552] <... futex resumed>) = 0 [pid 6562] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6558] write(4, "5", 1 [pid 6552] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6562] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6558] <... write resumed>) = 1 [pid 6552] <... futex resumed>) = 0 [pid 6562] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6558] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6552] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6562] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6558] <... setsockopt resumed>) = -1 EACCES (Permission denied) [pid 6562] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6558] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6562] <... futex resumed>) = 1 [pid 6558] <... futex resumed>) = 1 [pid 6555] <... futex resumed>) = 0 [pid 6552] <... futex resumed>) = 0 [pid 6562] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6558] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6555] exit_group(0 [pid 6552] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6562] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 228.344237][ T6559] futex_wake+0xe4/0x490 [ 228.348512][ T6559] ? futex_wake_mark+0x1a0/0x1a0 [ 228.353493][ T6559] ? ptrace_stop.part.0+0x5ec/0xa80 [ 228.358728][ T6559] ? do_raw_spin_lock+0x120/0x2a0 [ 228.363784][ T6559] ? rwlock_bug.part.0+0x90/0x90 [ 228.368757][ T6559] ? _raw_spin_lock_irq+0x41/0x50 [ 228.373819][ T6559] do_futex+0x266/0x300 [ 228.378008][ T6559] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 228.378892][ T6558] FAULT_INJECTION: forcing a failure. [pid 6561] <... futex resumed>) = ? [pid 6558] <... futex resumed>) = ? [pid 6555] <... exit_group resumed>) = ? [pid 6552] <... futex resumed>) = 0 [pid 6562] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6561] +++ exited with 0 +++ [pid 6552] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6562] <... openat resumed>) = 4 [pid 6562] write(4, "5", 1) = 1 [pid 6562] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6562] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6557] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6557] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6557] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 228.378892][ T6558] name fail_futex, interval 1, probability 0, space 0, times 0 [ 228.384016][ T6559] ? find_held_lock+0x2d/0x110 [ 228.401576][ T6559] __x64_sys_futex+0x1b0/0x4a0 [ 228.405078][ T6562] FAULT_INJECTION: forcing a failure. [ 228.405078][ T6562] name fail_futex, interval 1, probability 0, space 0, times 0 [ 228.406357][ T6559] ? do_futex+0x300/0x300 [ 228.424231][ T6559] ? _raw_spin_unlock_irq+0x1f/0x40 [ 228.429460][ T6559] ? lockdep_hardirqs_on+0x79/0x100 [ 228.434701][ T6559] ? _raw_spin_unlock_irq+0x2a/0x40 [ 228.439928][ T6559] ? ptrace_notify+0xfa/0x140 [pid 6557] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6552] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6552] exit_group(0) = ? [ 228.444633][ T6559] do_syscall_64+0x35/0xb0 [ 228.449166][ T6559] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 228.455086][ T6559] RIP: 0033:0x7fc128117db9 [ 228.459519][ T6559] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 228.479145][ T6559] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [pid 6556] exit_group(0) = ? [pid 6554] <... futex resumed>) = 1 [pid 6553] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6548] <... futex resumed>) = 0 [pid 6546] +++ exited with 0 +++ [pid 6540] +++ exited with 0 +++ [pid 6559] <... futex resumed>) = ? [pid 6557] <... futex resumed>) = 0 [pid 6554] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6553] <... futex resumed>) = 1 [pid 6557] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28) = -1 EADDRINUSE (Address already in use) [ 228.487578][ T6559] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 228.495558][ T6559] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 228.503537][ T6559] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 228.511529][ T6559] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 228.519514][ T6559] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 228.527516][ T6559] [pid 6557] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 228.535866][ T6558] CPU: 1 PID: 6558 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 228.546420][ T6558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 228.556498][ T6558] Call Trace: [ 228.559785][ T6558] [ 228.562722][ T6558] dump_stack_lvl+0xcd/0x134 [ 228.567331][ T6558] should_fail.cold+0x5/0xa [ 228.571846][ T6558] get_futex_key+0x5b2/0x1c50 [ 228.576536][ T6558] ? __lock_acquire+0x163e/0x5660 [ 228.581580][ T6558] ? futex_setup_timer+0xf0/0xf0 [ 228.586533][ T6558] futex_wake+0xe4/0x490 [pid 6557] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6559] +++ exited with 0 +++ [pid 6556] +++ exited with 0 +++ [pid 6548] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6548] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6556, si_uid=0, si_status=0, si_utime=0, si_stime=26} --- [pid 3608] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6563 ./strace-static-x86_64: Process 6563 attached [pid 6563] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6563] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6563] setpgid(0, 0) = 0 [pid 6563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6563] write(3, "1000", 4) = 4 [pid 6563] close(3) = 0 [pid 6563] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6563] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6563] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6563] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6564], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6564 [pid 6563] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 228.590801][ T6558] ? futex_wake_mark+0x1a0/0x1a0 [ 228.595769][ T6558] ? find_held_lock+0x2d/0x110 [ 228.600568][ T6558] do_futex+0x266/0x300 [ 228.604753][ T6558] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 228.610682][ T6558] mm_release+0x235/0x2c0 [ 228.615029][ T6558] do_exit+0x8a0/0x29d0 [ 228.619216][ T6558] ? find_held_lock+0x2d/0x110 [ 228.624010][ T6558] ? mm_update_next_owner+0x7a0/0x7a0 [ 228.629400][ T6558] ? lock_downgrade+0x6e0/0x6e0 [ 228.634284][ T6558] do_group_exit+0xd2/0x2f0 [ 228.638822][ T6558] get_signal+0x2542/0x2600 [pid 6563] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6564 attached [pid 6564] set_robust_list(0x7fc1280c99e0, 24 [pid 6548] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6564] <... set_robust_list resumed>) = 0 [pid 6548] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6564] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6548] <... futex resumed>) = 0 [pid 6564] <... socket resumed>) = 3 [pid 6548] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6564] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6548] <... mmap resumed>) = 0x7fc128088000 [pid 6564] <... futex resumed>) = 1 [pid 6563] <... futex resumed>) = 0 [pid 6548] mprotect(0x7fc128089000, 131072, PROT_READ|PROT_WRITE [pid 6564] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6563] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6548] <... mprotect resumed>) = 0 [pid 6564] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6563] <... futex resumed>) = 0 [pid 6548] clone(child_stack=0x7fc1280a83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6564] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6563] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6564] <... setsockopt resumed>) = 0 [pid 6548] <... clone resumed>, parent_tid=[6565], tls=0x7fc1280a8700, child_tidptr=0x7fc1280a89d0) = 6565 [pid 6564] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6548] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6564] <... futex resumed>) = 1 [pid 6563] <... futex resumed>) = 0 [pid 6548] <... futex resumed>) = 0 [pid 6564] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6563] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6548] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6564] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6563] <... futex resumed>) = 0 [pid 6564] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6563] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6565 attached [pid 6564] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6565] set_robust_list(0x7fc1280a89e0, 24 [pid 6564] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6565] <... set_robust_list resumed>) = 0 [pid 6564] <... futex resumed>) = 1 [pid 6563] <... futex resumed>) = 0 [pid 6565] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6564] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6563] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6564] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6563] <... futex resumed>) = 0 [ 228.643360][ T6558] ? exit_signals+0x8b0/0x8b0 [ 228.648059][ T6558] ? userns_owner+0x40/0x40 [ 228.652595][ T6558] ? __task_pid_nr_ns+0x168/0x4b0 [ 228.657650][ T6558] ? lock_downgrade+0x6e0/0x6e0 [ 228.662529][ T6558] arch_do_signal_or_restart+0x82/0x2300 [ 228.668185][ T6558] ? from_kuid_munged+0xa2/0x130 [ 228.673139][ T6558] ? find_held_lock+0x2d/0x110 [ 228.677922][ T6558] ? get_sigframe_size+0x10/0x10 [ 228.682887][ T6558] ? ptrace_notify+0xfa/0x140 [ 228.687585][ T6558] ? lock_downgrade+0x6e0/0x6e0 [pid 6564] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6563] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6564] <... setsockopt resumed>) = 0 [pid 6564] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6563] <... futex resumed>) = 0 [pid 6564] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6563] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6564] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6563] <... futex resumed>) = 0 [pid 6565] <... sendto resumed>) = 1 [pid 6564] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6563] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6565] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6564] <... sendto resumed>) = 1 [pid 6565] <... futex resumed>) = 1 [pid 6564] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6548] <... futex resumed>) = 0 [pid 6565] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6564] <... futex resumed>) = 1 [pid 6563] <... futex resumed>) = 0 [pid 6548] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6565] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6564] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6563] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6548] <... futex resumed>) = 0 [pid 6565] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6564] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6563] <... futex resumed>) = 0 [pid 6548] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6565] <... sendto resumed>) = 1 [pid 6564] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6563] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6565] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6564] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6565] <... futex resumed>) = 1 [pid 6564] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6548] <... futex resumed>) = 0 [pid 6565] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6564] <... futex resumed>) = 1 [pid 6563] <... futex resumed>) = 0 [pid 6548] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6565] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6564] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6563] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6548] <... futex resumed>) = 0 [pid 6565] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6564] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6563] <... futex resumed>) = 0 [pid 6548] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6565] <... openat resumed>) = 4 [pid 6564] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6563] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6565] write(4, "5", 1 [pid 6564] <... openat resumed>) = 4 [pid 6565] <... write resumed>) = 1 [pid 6564] write(4, "5", 1 [pid 6565] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6564] <... write resumed>) = 1 [pid 6565] <... setsockopt resumed>) = 0 [pid 6564] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6565] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6564] <... setsockopt resumed>) = 0 [pid 6565] <... futex resumed>) = 1 [ 228.692458][ T6558] ? send_sig+0xfe/0x160 [ 228.696721][ T6558] ? send_sig_info+0x140/0x140 [ 228.701510][ T6558] ? exit_to_user_mode_prepare+0x137/0x250 [ 228.707344][ T6558] exit_to_user_mode_prepare+0x15f/0x250 [ 228.713006][ T6558] syscall_exit_to_user_mode+0x19/0x50 [ 228.718492][ T6558] do_syscall_64+0x42/0xb0 [ 228.722922][ T6558] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 228.728834][ T6558] RIP: 0033:0x7fc128117db9 [pid 6564] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6548] <... futex resumed>) = 0 [pid 6565] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6563] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6563] exit_group(0) = ? [ 228.733267][ T6558] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 228.744399][ T6564] FAULT_INJECTION: forcing a failure. [ 228.744399][ T6564] name fail_futex, interval 1, probability 0, space 0, times 0 [ 228.752876][ T6558] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 228.752905][ T6558] RAX: fffffffffffffe00 RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 228.752922][ T6558] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fc1281a04a8 [ 228.790055][ T6558] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 228.798052][ T6558] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 228.806039][ T6558] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 228.814056][ T6558] [ 228.817088][ T6562] CPU: 0 PID: 6562 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 228.827605][ T6562] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 228.837661][ T6562] Call Trace: [ 228.840938][ T6562] [ 228.843865][ T6562] dump_stack_lvl+0xcd/0x134 [ 228.848464][ T6562] should_fail.cold+0x5/0xa [ 228.852975][ T6562] get_futex_key+0x5b2/0x1c50 [ 228.857660][ T6562] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 228.863645][ T6562] ? futex_setup_timer+0xf0/0xf0 [ 228.868590][ T6562] futex_wake+0xe4/0x490 [ 228.872836][ T6562] ? futex_wake_mark+0x1a0/0x1a0 [ 228.877772][ T6562] ? ptrace_stop.part.0+0x5ec/0xa80 [ 228.882974][ T6562] ? do_raw_spin_lock+0x120/0x2a0 [ 228.888000][ T6562] ? rwlock_bug.part.0+0x90/0x90 [ 228.893378][ T6562] ? _raw_spin_lock_irq+0x41/0x50 [ 228.898411][ T6562] do_futex+0x266/0x300 [ 228.902578][ T6562] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 228.908469][ T6562] ? find_held_lock+0x2d/0x110 [ 228.913242][ T6562] __x64_sys_futex+0x1b0/0x4a0 [ 228.918025][ T6562] ? do_futex+0x300/0x300 [ 228.922360][ T6562] ? _raw_spin_unlock_irq+0x1f/0x40 [ 228.927564][ T6562] ? lockdep_hardirqs_on+0x79/0x100 [ 228.932764][ T6562] ? _raw_spin_unlock_irq+0x2a/0x40 [ 228.937963][ T6562] ? ptrace_notify+0xfa/0x140 [ 228.942644][ T6562] do_syscall_64+0x35/0xb0 [ 228.947062][ T6562] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 228.952958][ T6562] RIP: 0033:0x7fc128117db9 [ 228.957372][ T6562] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 228.976979][ T6562] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 228.985395][ T6562] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [pid 6554] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6553] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6540, si_uid=0, si_status=0, si_utime=0, si_stime=24} --- [pid 6562] <... futex resumed>) = ? [ 228.993376][ T6562] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 229.001343][ T6562] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 229.009343][ T6562] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 229.017311][ T6562] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 229.025295][ T6562] [ 229.029033][ T6564] CPU: 1 PID: 6564 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [pid 6562] +++ exited with 0 +++ [pid 6552] +++ exited with 0 +++ [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6552, si_uid=0, si_status=0, si_utime=0, si_stime=33} --- [pid 3610] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6566 [pid 6558] +++ exited with 0 +++ [pid 6555] +++ exited with 0 +++ [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6555, si_uid=0, si_status=0, si_utime=0, si_stime=34} --- [pid 3611] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6567 ./strace-static-x86_64: Process 6567 attached [pid 6567] set_robust_list(0x5555564f35e0, 24 [pid 6554] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6553] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6554] <... setsockopt resumed>) = 0 [pid 6553] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6557] <... futex resumed>) = 0 [pid 6554] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6553] <... futex resumed>) = 1 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6557] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6554] <... futex resumed>) = 0 [pid 6553] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6567] <... set_robust_list resumed>) = 0 [pid 6557] <... setsockopt resumed>) = -1 EACCES (Permission denied) [pid 6554] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6548] exit_group(0 [pid 3615] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6568 [pid 6567] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6565] <... futex resumed>) = ? [pid 6557] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6554] <... futex resumed>) = ? [pid 6548] <... exit_group resumed>) = ? [pid 6567] <... prctl resumed>) = 0 [pid 6565] +++ exited with 0 +++ [pid 6557] <... futex resumed>) = 1 [pid 6554] +++ exited with 0 +++ [pid 6553] <... futex resumed>) = 0 [pid 6548] +++ exited with 0 +++ [pid 6567] setpgid(0, 0 [pid 6557] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 229.039580][ T6564] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 229.049659][ T6564] Call Trace: [ 229.052953][ T6564] [ 229.055904][ T6564] dump_stack_lvl+0xcd/0x134 [ 229.060528][ T6564] should_fail.cold+0x5/0xa [ 229.065066][ T6564] get_futex_key+0x5b2/0x1c50 [ 229.069773][ T6564] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 229.075780][ T6564] ? finish_task_switch.isra.0+0x2b9/0xbb0 [ 229.081623][ T6564] ? futex_setup_timer+0xf0/0xf0 [ 229.086597][ T6564] futex_wake+0xe4/0x490 [ 229.090869][ T6564] ? futex_wake_mark+0x1a0/0x1a0 [pid 6553] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6548, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6567] <... setpgid resumed>) = 0 [pid 6557] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6553] <... futex resumed>) = 0 [pid 6567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6557] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6553] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6567] <... openat resumed>) = 3 [pid 6557] <... sendto resumed>) = 1 [pid 6567] write(3, "1000", 4 [pid 6557] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6567] <... write resumed>) = 4 [pid 6557] <... futex resumed>) = 1 [pid 6553] <... futex resumed>) = 0 [pid 6567] close(3 [pid 6557] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6553] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6567] <... close resumed>) = 0 [pid 6557] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6553] <... futex resumed>) = 0 [pid 6567] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6557] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6553] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3614] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6569 [pid 6567] <... futex resumed>) = 0 [pid 6557] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6567] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6557] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6567] <... mmap resumed>) = 0x7fc1280a9000 [pid 6557] <... futex resumed>) = 1 [pid 6553] <... futex resumed>) = 0 [pid 6567] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6557] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6553] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6567] <... mprotect resumed>) = 0 [pid 6557] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6553] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6569 attached [pid 6567] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6557] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6553] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6569] set_robust_list(0x5555564f35e0, 24 [pid 6557] <... openat resumed>) = 4 [pid 6569] <... set_robust_list resumed>) = 0 [pid 6567] <... clone resumed>, parent_tid=[6570], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6570 [pid 6557] write(4, "5", 1 [pid 6569] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6567] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6557] <... write resumed>) = 1 [pid 6569] <... prctl resumed>) = 0 [pid 6567] <... futex resumed>) = 0 [pid 6557] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9./strace-static-x86_64: Process 6570 attached [pid 6569] setpgid(0, 0 [pid 6567] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6557] <... setsockopt resumed>) = -1 EACCES (Permission denied) [pid 6570] set_robust_list(0x7fc1280c99e0, 24 [pid 6569] <... setpgid resumed>) = 0 [pid 6557] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6570] <... set_robust_list resumed>) = 0 [pid 6569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6557] <... futex resumed>) = 1 [pid 6553] <... futex resumed>) = 0 [pid 6570] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6569] <... openat resumed>) = 3 [pid 6557] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6553] exit_group(0 [pid 6570] <... socket resumed>) = 3 [pid 6569] write(3, "1000", 4 [pid 6560] <... futex resumed>) = ? [ 229.095836][ T6564] ? ptrace_stop.part.0+0x5ec/0xa80 [ 229.101069][ T6564] ? do_raw_spin_lock+0x120/0x2a0 [ 229.106115][ T6564] ? rwlock_bug.part.0+0x90/0x90 [ 229.111085][ T6564] ? _raw_spin_lock_irq+0x41/0x50 [ 229.116142][ T6564] do_futex+0x266/0x300 [ 229.125303][ T6564] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 229.131233][ T6564] ? find_held_lock+0x2d/0x110 [ 229.136052][ T6564] __x64_sys_futex+0x1b0/0x4a0 [ 229.141466][ T6564] ? do_futex+0x300/0x300 [pid 6557] <... futex resumed>) = ? [pid 6553] <... exit_group resumed>) = ? [pid 6570] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6569] <... write resumed>) = 4 [pid 6560] +++ exited with 0 +++ [pid 6570] <... futex resumed>) = 1 [pid 6569] close(3 [pid 6567] <... futex resumed>) = 0 [pid 6570] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6569] <... close resumed>) = 0 [pid 6567] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6570] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6569] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6567] <... futex resumed>) = 0 [pid 6570] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6569] <... futex resumed>) = 0 [pid 6567] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6570] <... setsockopt resumed>) = 0 [pid 6569] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6570] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6569] <... mmap resumed>) = 0x7fc1280a9000 [pid 6570] <... futex resumed>) = 1 [pid 6569] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6567] <... futex resumed>) = 0 [pid 6570] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6569] <... mprotect resumed>) = 0 [pid 6567] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6570] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6569] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6567] <... futex resumed>) = 0 [pid 6570] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6567] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6570] <... setsockopt resumed>) = 0 [pid 6569] <... clone resumed>, parent_tid=[6571], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6571 [pid 6570] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6569] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6570] <... futex resumed>) = 1 [pid 6569] <... futex resumed>) = 0 [pid 6567] <... futex resumed>) = 0 [pid 6570] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6569] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6567] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6571 attached [pid 6570] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6567] <... futex resumed>) = 0 [pid 6571] set_robust_list(0x7fc1280c99e0, 24 [pid 6570] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6567] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6571] <... set_robust_list resumed>) = 0 [pid 6570] <... setsockopt resumed>) = 0 [pid 6571] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6570] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6571] <... socket resumed>) = 3 [pid 6570] <... futex resumed>) = 1 [pid 6567] <... futex resumed>) = 0 [pid 6571] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6570] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6567] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6571] <... futex resumed>) = 1 [pid 6570] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6569] <... futex resumed>) = 0 [pid 6567] <... futex resumed>) = 0 [ 229.141676][ T6557] FAULT_INJECTION: forcing a failure. [ 229.141676][ T6557] name fail_futex, interval 1, probability 0, space 0, times 0 [ 229.145810][ T6564] ? _raw_spin_unlock_irq+0x1f/0x40 [ 229.145842][ T6564] ? lockdep_hardirqs_on+0x79/0x100 [ 229.169024][ T6564] ? _raw_spin_unlock_irq+0x2a/0x40 [ 229.174260][ T6564] ? ptrace_notify+0xfa/0x140 [ 229.178969][ T6564] do_syscall_64+0x35/0xb0 [ 229.183418][ T6564] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 229.189349][ T6564] RIP: 0033:0x7fc128117db9 [pid 6571] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6570] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6569] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6567] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6571] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6570] <... sendto resumed>) = 1 [pid 6569] <... futex resumed>) = 0 [pid 6571] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6570] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6569] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6571] <... setsockopt resumed>) = 0 [pid 6570] <... futex resumed>) = 1 [pid 6567] <... futex resumed>) = 0 [pid 6571] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6570] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6567] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6571] <... futex resumed>) = 1 [pid 6570] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6569] <... futex resumed>) = 0 [pid 6567] <... futex resumed>) = 0 [pid 6571] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6570] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6569] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6567] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6571] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6570] <... sendto resumed>) = 1 [pid 6569] <... futex resumed>) = 0 [pid 6571] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6570] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6569] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6571] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6570] <... futex resumed>) = 1 [pid 6567] <... futex resumed>) = 0 [pid 6571] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6570] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6567] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6571] <... futex resumed>) = 1 [pid 6570] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6569] <... futex resumed>) = 0 [pid 6567] <... futex resumed>) = 0 [pid 6571] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6570] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6569] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6567] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6571] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6570] <... openat resumed>) = 4 [pid 6569] <... futex resumed>) = 0 [pid 6571] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6570] write(4, "5", 1 [pid 6569] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6571] <... setsockopt resumed>) = 0 [pid 6570] <... write resumed>) = 1 [pid 6571] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6570] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6571] <... futex resumed>) = 1 [pid 6570] <... setsockopt resumed>) = 0 [pid 6569] <... futex resumed>) = 0 [pid 6571] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6570] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6569] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6571] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 229.193789][ T6564] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 229.213439][ T6564] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 229.221878][ T6564] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 229.229884][ T6564] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 229.237884][ T6564] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [pid 6570] <... futex resumed>) = 1 [pid 6569] <... futex resumed>) = 0 [pid 6567] <... futex resumed>) = 0 [pid 6571] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6570] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6569] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6567] exit_group(0 [pid 6571] <... sendto resumed>) = 1 [pid 6570] <... futex resumed>) = ? [pid 6567] <... exit_group resumed>) = ? [pid 6571] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6570] +++ exited with 0 +++ [pid 6567] +++ exited with 0 +++ ./strace-static-x86_64: Process 6568 attached ./strace-static-x86_64: Process 6566 attached [pid 6571] <... futex resumed>) = 1 [pid 6569] <... futex resumed>) = 0 [pid 6564] <... futex resumed>) = ? [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6567, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6571] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6569] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6571] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6569] <... futex resumed>) = 0 [pid 6571] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6569] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6571] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6571] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6572 [pid 6571] <... futex resumed>) = 1 [pid 6569] <... futex resumed>) = 0 [pid 6571] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6569] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6571] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6569] <... futex resumed>) = 0 [pid 6571] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6569] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6571] <... openat resumed>) = 4 [pid 6571] write(4, "5", 1./strace-static-x86_64: Process 6572 attached ) = 1 [pid 6572] set_robust_list(0x5555564f35e0, 24 [pid 6571] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6572] <... set_robust_list resumed>) = 0 [pid 6571] <... setsockopt resumed>) = 0 [ 229.245880][ T6564] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 229.253873][ T6564] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 229.261970][ T6564] [ 229.265726][ T6557] CPU: 1 PID: 6557 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 229.276264][ T6557] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 229.286349][ T6557] Call Trace: [ 229.287582][ T6571] FAULT_INJECTION: forcing a failure. [pid 6572] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6571] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6572] <... prctl resumed>) = 0 [pid 6572] setpgid(0, 0) = 0 [pid 6572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6572] write(3, "1000", 4) = 4 [pid 6572] close(3) = 0 [pid 6572] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6572] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6572] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6572] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6573], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6573 [pid 6572] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6572] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6573 attached [pid 6573] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6573] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6569] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6573] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6569] exit_group(0 [pid 6573] <... futex resumed>) = 1 [pid 6572] <... futex resumed>) = 0 [pid 6569] <... exit_group resumed>) = ? [pid 6573] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6572] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6573] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6572] <... futex resumed>) = 0 [ 229.287582][ T6571] name fail_futex, interval 1, probability 0, space 0, times 0 [ 229.289629][ T6557] [ 229.289641][ T6557] dump_stack_lvl+0xcd/0x134 [ 229.309936][ T6557] should_fail.cold+0x5/0xa [ 229.314488][ T6557] get_futex_key+0x5b2/0x1c50 [ 229.319199][ T6557] ? __lock_acquire+0x163e/0x5660 [ 229.324259][ T6557] ? futex_setup_timer+0xf0/0xf0 [ 229.329230][ T6557] futex_wake+0xe4/0x490 [ 229.333499][ T6557] ? futex_wake_mark+0x1a0/0x1a0 [ 229.338477][ T6557] ? find_held_lock+0x2d/0x110 [ 229.343278][ T6557] do_futex+0x266/0x300 [pid 6573] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6572] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6573] <... setsockopt resumed>) = 0 [pid 6573] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6572] <... futex resumed>) = 0 [pid 6573] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6572] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6573] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6572] <... futex resumed>) = 0 [pid 6573] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6572] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6573] <... setsockopt resumed>) = 0 [pid 6573] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6572] <... futex resumed>) = 0 [pid 6573] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6572] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6573] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6572] <... futex resumed>) = 0 [pid 6573] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6572] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6573] <... setsockopt resumed>) = 0 [pid 6573] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6572] <... futex resumed>) = 0 [pid 6573] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6572] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6573] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6572] <... futex resumed>) = 0 [pid 6573] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6572] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6573] <... sendto resumed>) = 1 [pid 6573] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6572] <... futex resumed>) = 0 [pid 6573] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6572] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6573] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6572] <... futex resumed>) = 0 [pid 6573] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6572] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6573] <... sendto resumed>) = 1 [pid 6573] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6572] <... futex resumed>) = 0 [pid 6573] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6572] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6573] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6572] <... futex resumed>) = 0 [pid 6573] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6572] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6573] <... openat resumed>) = 4 [pid 6573] write(4, "5", 1) = 1 [ 229.347453][ T6557] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 229.353375][ T6557] mm_release+0x235/0x2c0 [ 229.357733][ T6557] do_exit+0x8a0/0x29d0 [ 229.361921][ T6557] ? find_held_lock+0x2d/0x110 [ 229.366732][ T6557] ? mm_update_next_owner+0x7a0/0x7a0 [ 229.372142][ T6557] ? lock_downgrade+0x6e0/0x6e0 [ 229.377038][ T6557] do_group_exit+0xd2/0x2f0 [ 229.381581][ T6557] get_signal+0x2542/0x2600 [ 229.386127][ T6557] ? exit_signals+0x8b0/0x8b0 [ 229.390828][ T6557] ? userns_owner+0x40/0x40 [pid 6573] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6573] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6572] <... futex resumed>) = 0 [pid 6573] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6572] exit_group(0 [pid 6573] <... futex resumed>) = ? [pid 6572] <... exit_group resumed>) = ? [pid 6573] +++ exited with 0 +++ [pid 6572] +++ exited with 0 +++ [pid 6568] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6568] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6572, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 6568] <... prctl resumed>) = 0 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6568] setpgid(0, 0) = 0 [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6574 [pid 6568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6568] write(3, "1000", 4) = 4 [pid 6568] close(3) = 0 [pid 6568] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6568] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6568] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6568] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6575], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6575 [pid 6568] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 229.395359][ T6557] ? __task_pid_nr_ns+0x168/0x4b0 [ 229.400414][ T6557] ? lock_downgrade+0x6e0/0x6e0 [ 229.405299][ T6557] arch_do_signal_or_restart+0x82/0x2300 [ 229.410966][ T6557] ? from_kuid_munged+0xa2/0x130 [ 229.415932][ T6557] ? find_held_lock+0x2d/0x110 [ 229.420716][ T6557] ? get_sigframe_size+0x10/0x10 [ 229.425676][ T6557] ? ptrace_notify+0xfa/0x140 [ 229.430387][ T6557] ? lock_downgrade+0x6e0/0x6e0 [ 229.435266][ T6557] ? send_sig+0xfe/0x160 [ 229.439628][ T6557] ? send_sig_info+0x140/0x140 [pid 6568] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6575 attached [pid 6575] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6575] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6575] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6568] <... futex resumed>) = 0 [pid 6575] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6568] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6575] <... setsockopt resumed>) = 0 [pid 6568] <... futex resumed>) = 0 [pid 6575] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6568] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6575] <... futex resumed>) = 0 [pid 6568] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6575] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6568] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6575] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6568] <... futex resumed>) = 0 [pid 6575] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6568] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6575] <... setsockopt resumed>) = 0 [pid 6575] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6568] <... futex resumed>) = 0 [pid 6575] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6568] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6575] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6568] <... futex resumed>) = 0 [pid 6575] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6568] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6575] <... setsockopt resumed>) = 0 [pid 6575] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6568] <... futex resumed>) = 0 [ 229.444425][ T6557] ? exit_to_user_mode_prepare+0x137/0x250 [ 229.450279][ T6557] exit_to_user_mode_prepare+0x15f/0x250 [ 229.455939][ T6557] syscall_exit_to_user_mode+0x19/0x50 [ 229.461421][ T6557] do_syscall_64+0x42/0xb0 [ 229.465858][ T6557] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 229.471785][ T6557] RIP: 0033:0x7fc128117db9 [ 229.476229][ T6557] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [pid 6575] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6568] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6575] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6568] <... futex resumed>) = 0 [pid 6575] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6568] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6575] <... sendto resumed>) = 1 [pid 6575] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6568] <... futex resumed>) = 0 [pid 6575] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6568] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6575] <... sendto resumed>) = 1 [pid 6568] <... futex resumed>) = 0 [pid 6575] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6568] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6575] <... futex resumed>) = 0 [pid 6568] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6575] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6568] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6575] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6568] <... futex resumed>) = 0 [pid 6575] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6568] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6575] <... openat resumed>) = 4 [pid 6575] write(4, "5", 1) = 1 [pid 6575] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6575] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6568] <... futex resumed>) = 0 [pid 6575] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6568] exit_group(0 [pid 6575] <... futex resumed>) = ? [pid 6568] <... exit_group resumed>) = ? [pid 6575] +++ exited with 0 +++ [pid 6568] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6568, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [ 229.495866][ T6557] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 229.504313][ T6557] RAX: fffffffffffffe00 RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 229.512320][ T6557] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fc1281a04a8 [ 229.520323][ T6557] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 229.528412][ T6557] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 229.536412][ T6557] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 229.544425][ T6557] [ 229.547470][ T6571] CPU: 0 PID: 6571 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 229.558081][ T6571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 229.568156][ T6571] Call Trace: [ 229.571444][ T6571] [ 229.574374][ T6571] dump_stack_lvl+0xcd/0x134 [ 229.578975][ T6571] should_fail.cold+0x5/0xa [ 229.583489][ T6571] get_futex_key+0x5b2/0x1c50 [ 229.588174][ T6571] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 229.594158][ T6571] ? futex_setup_timer+0xf0/0xf0 [ 229.599106][ T6571] futex_wake+0xe4/0x490 [ 229.603353][ T6571] ? futex_wake_mark+0x1a0/0x1a0 [ 229.608292][ T6571] ? ptrace_stop.part.0+0x5ec/0xa80 [ 229.613587][ T6571] ? do_raw_spin_lock+0x120/0x2a0 [ 229.618620][ T6571] ? rwlock_bug.part.0+0x90/0x90 [ 229.623573][ T6571] ? _raw_spin_lock_irq+0x41/0x50 [ 229.628614][ T6571] do_futex+0x266/0x300 [ 229.632773][ T6571] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 229.638668][ T6571] ? find_held_lock+0x2d/0x110 [ 229.643444][ T6571] __x64_sys_futex+0x1b0/0x4a0 [ 229.648211][ T6571] ? do_futex+0x300/0x300 [ 229.652542][ T6571] ? _raw_spin_unlock_irq+0x1f/0x40 [ 229.657744][ T6571] ? lockdep_hardirqs_on+0x79/0x100 [ 229.662959][ T6571] ? _raw_spin_unlock_irq+0x2a/0x40 [ 229.668158][ T6571] ? ptrace_notify+0xfa/0x140 [ 229.672841][ T6571] do_syscall_64+0x35/0xb0 [ 229.677302][ T6571] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 229.683636][ T6571] RIP: 0033:0x7fc128117db9 [ 229.688142][ T6571] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 229.707752][ T6571] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 229.716164][ T6571] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 229.724135][ T6571] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 229.732104][ T6571] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 229.740072][ T6571] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6566] set_robust_list(0x5555564f35e0, 24 [pid 6564] +++ exited with 0 +++ [pid 6563] +++ exited with 0 +++ [pid 6566] <... set_robust_list resumed>) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6576 [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6563, si_uid=0, si_status=0, si_utime=0, si_stime=26} --- [pid 6566] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6576 attached ./strace-static-x86_64: Process 6574 attached [pid 6571] <... futex resumed>) = ? [pid 6566] <... prctl resumed>) = 0 [pid 6576] set_robust_list(0x5555564f35e0, 24 [pid 6574] set_robust_list(0x5555564f35e0, 24 [pid 6576] <... set_robust_list resumed>) = 0 [pid 6574] <... set_robust_list resumed>) = 0 [pid 6571] +++ exited with 0 +++ [pid 6569] +++ exited with 0 +++ [pid 6566] setpgid(0, 0 [pid 6576] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6574] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6566] <... setpgid resumed>) = 0 [pid 6557] +++ exited with 0 +++ [pid 6553] +++ exited with 0 +++ [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6576] <... prctl resumed>) = 0 [pid 6574] <... prctl resumed>) = 0 [pid 6566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6576] setpgid(0, 0 [pid 6574] setpgid(0, 0 [pid 6566] <... openat resumed>) = 3 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6553, si_uid=0, si_status=0, si_utime=0, si_stime=32} --- [pid 6576] <... setpgid resumed>) = 0 [pid 6574] <... setpgid resumed>) = 0 [pid 6566] write(3, "1000", 4 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6569, si_uid=0, si_status=0, si_utime=0, si_stime=29} --- [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 6576] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6566] <... write resumed>) = 4 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3608] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6577 [pid 6576] <... openat resumed>) = 3 [pid 6574] <... openat resumed>) = 3 [pid 6566] close(3 [pid 3607] <... restart_syscall resumed>) = 0 [pid 6576] write(3, "1000", 4 [pid 6574] write(3, "1000", 4 [pid 6566] <... close resumed>) = 0 [pid 6576] <... write resumed>) = 4 [pid 6574] <... write resumed>) = 4 [pid 6566] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6576] close(3 [pid 6574] close(3 [pid 6566] <... futex resumed>) = 0 [pid 3614] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6578 [pid 6576] <... close resumed>) = 0 [pid 6574] <... close resumed>) = 0 [pid 6566] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6576] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6574] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6566] <... mmap resumed>) = 0x7fc1280a9000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6576] <... futex resumed>) = 0 [pid 6574] <... futex resumed>) = 0 [pid 6566] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6576] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6574] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6566] <... mprotect resumed>) = 0 [pid 6576] <... mmap resumed>) = 0x7fc1280a9000 [pid 6574] <... mmap resumed>) = 0x7fc1280a9000 [pid 6566] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6576] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6574] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6576] <... mprotect resumed>) = 0 [pid 6574] <... mprotect resumed>) = 0 [pid 6566] <... clone resumed>, parent_tid=[6580], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6580 [pid 3607] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6579 [pid 6576] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6574] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6566] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6579 attached ./strace-static-x86_64: Process 6577 attached ) = 0 [pid 6579] set_robust_list(0x5555564f35e0, 24 [pid 6576] <... clone resumed>, parent_tid=[6581], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6581 [pid 6574] <... clone resumed>, parent_tid=[6582], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6582 [pid 6566] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6579] <... set_robust_list resumed>) = 0 [pid 6576] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6574] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6579] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6576] <... futex resumed>) = 0 [pid 6574] <... futex resumed>) = 0 [pid 6579] <... prctl resumed>) = 0 [pid 6576] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6574] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6579] setpgid(0, 0 [pid 6577] set_robust_list(0x5555564f35e0, 24./strace-static-x86_64: Process 6578 attached ) = 0 [pid 6579] <... setpgid resumed>) = 0 [pid 6579] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6577] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6579] <... openat resumed>) = 3 [pid 6577] <... prctl resumed>) = 0 [pid 6579] write(3, "1000", 4 [pid 6578] set_robust_list(0x5555564f35e0, 24 [pid 6579] <... write resumed>) = 4 [pid 6577] setpgid(0, 0 [pid 6578] <... set_robust_list resumed>) = 0 [pid 6579] close(3 [pid 6577] <... setpgid resumed>) = 0 [pid 6579] <... close resumed>) = 0 [pid 6579] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6579] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6578] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6579] <... mmap resumed>) = 0x7fc1280a9000 [pid 6579] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6577] <... openat resumed>) = 3 [pid 6579] <... mprotect resumed>) = 0 [pid 6578] <... prctl resumed>) = 0 [pid 6579] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6577] write(3, "1000", 4 [pid 6578] setpgid(0, 0./strace-static-x86_64: Process 6580 attached ./strace-static-x86_64: Process 6581 attached [pid 6577] <... write resumed>) = 4 [pid 6578] <... setpgid resumed>) = 0 [pid 6579] <... clone resumed>, parent_tid=[6583], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6583 [pid 6577] close(3 [pid 6581] set_robust_list(0x7fc1280c99e0, 24 [pid 6580] set_robust_list(0x7fc1280c99e0, 24 [pid 6579] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6577] <... close resumed>) = 0 [pid 6579] <... futex resumed>) = 0 [pid 6577] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6579] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6577] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6582 attached [pid 6581] <... set_robust_list resumed>) = 0 [pid 6580] <... set_robust_list resumed>) = 0 [pid 6578] <... openat resumed>) = 3 [pid 6577] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6580] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP./strace-static-x86_64: Process 6583 attached [pid 6583] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6583] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6583] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6579] <... futex resumed>) = 0 [pid 6578] write(3, "1000", 4 [pid 6581] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6577] <... mmap resumed>) = 0x7fc1280a9000 [pid 6583] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6582] set_robust_list(0x7fc1280c99e0, 24 [pid 6580] <... socket resumed>) = 3 [pid 6579] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6578] <... write resumed>) = 4 [pid 6581] <... socket resumed>) = 3 [pid 6577] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6583] <... setsockopt resumed>) = 0 [pid 6582] <... set_robust_list resumed>) = 0 [pid 6581] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6580] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6579] <... futex resumed>) = 0 [pid 6578] close(3 [pid 6577] <... mprotect resumed>) = 0 [pid 6583] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6579] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6578] <... close resumed>) = 0 [pid 6583] <... futex resumed>) = 0 [pid 6582] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6581] <... futex resumed>) = 1 [pid 6580] <... futex resumed>) = 1 [pid 6579] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6577] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6576] <... futex resumed>) = 0 [pid 6566] <... futex resumed>) = 0 [pid 6578] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6583] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6582] <... socket resumed>) = 3 [pid 6581] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6580] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6579] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6578] <... futex resumed>) = 0 [pid 6576] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6566] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6583] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6582] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6581] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6580] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6579] <... futex resumed>) = 0 [pid 6578] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6577] <... clone resumed>, parent_tid=[6584], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6584 [pid 6576] <... futex resumed>) = 0 [pid 6566] <... futex resumed>) = 0 [pid 6583] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6581] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6579] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6578] <... mmap resumed>) = 0x7fc1280a9000 [pid 6577] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6580] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6576] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6566] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6582] <... futex resumed>) = 1 [pid 6574] <... futex resumed>) = 0 [pid 6583] <... setsockopt resumed>) = 0 [pid 6581] <... setsockopt resumed>) = 0 [pid 6580] <... setsockopt resumed>) = 0 [pid 6578] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6577] <... futex resumed>) = 0 [pid 6574] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6583] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6582] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6581] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6580] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6578] <... mprotect resumed>) = 0 [pid 6577] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6574] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6584 attached [pid 6583] <... futex resumed>) = 1 [ 229.748047][ T6571] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 229.756031][ T6571] [pid 6582] <... setsockopt resumed>) = 0 [pid 6580] <... futex resumed>) = 1 [pid 6579] <... futex resumed>) = 0 [pid 6578] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6581] <... futex resumed>) = 1 [pid 6576] <... futex resumed>) = 0 [pid 6574] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6566] <... futex resumed>) = 0 [pid 6584] set_robust_list(0x7fc1280c99e0, 24 [pid 6583] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6582] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6580] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6579] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6576] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6574] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6566] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6581] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6584] <... set_robust_list resumed>) = 0 [pid 6583] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6582] <... futex resumed>) = 0 [pid 6580] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6579] <... futex resumed>) = 0 [pid 6581] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6578] <... clone resumed>, parent_tid=[6585], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6585 [pid 6576] <... futex resumed>) = 0 [pid 6574] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6566] <... futex resumed>) = 0 [pid 6584] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6583] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6582] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6581] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6580] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6579] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6578] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6576] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6574] <... futex resumed>) = 0 [pid 6566] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6585 attached [pid 6584] <... socket resumed>) = 3 [pid 6583] <... setsockopt resumed>) = 0 [pid 6582] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6581] <... futex resumed>) = 0 [pid 6580] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6578] <... futex resumed>) = 0 [pid 6576] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6574] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6585] set_robust_list(0x7fc1280c99e0, 24 [pid 6584] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6583] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6582] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6581] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6580] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6578] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6576] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6574] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6585] <... set_robust_list resumed>) = 0 [pid 6584] <... futex resumed>) = 1 [pid 6583] <... futex resumed>) = 1 [pid 6582] <... futex resumed>) = 0 [pid 6581] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6580] <... futex resumed>) = 1 [pid 6579] <... futex resumed>) = 0 [pid 6577] <... futex resumed>) = 0 [pid 6576] <... futex resumed>) = 0 [pid 6574] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6566] <... futex resumed>) = 0 [pid 6585] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6584] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6583] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6582] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6581] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6580] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6579] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6577] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6576] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6574] <... futex resumed>) = 0 [pid 6566] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6585] <... socket resumed>) = 3 [pid 6584] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6583] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6582] <... setsockopt resumed>) = 0 [pid 6581] <... setsockopt resumed>) = 0 [pid 6580] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6579] <... futex resumed>) = 0 [pid 6577] <... futex resumed>) = 0 [pid 6574] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6566] <... futex resumed>) = 0 [pid 6585] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6584] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6583] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6582] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6581] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6580] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6579] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6577] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6574] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6566] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6585] <... futex resumed>) = 1 [pid 6584] <... setsockopt resumed>) = 0 [pid 6582] <... futex resumed>) = 0 [pid 6581] <... futex resumed>) = 1 [pid 6580] <... setsockopt resumed>) = 0 [pid 6578] <... futex resumed>) = 0 [pid 6576] <... futex resumed>) = 0 [pid 6574] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6585] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6584] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6583] <... sendto resumed>) = 1 [pid 6582] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6581] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6580] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6578] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6576] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6574] <... futex resumed>) = 0 [pid 6585] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6584] <... futex resumed>) = 1 [pid 6583] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6577] <... futex resumed>) = 0 [pid 6576] <... futex resumed>) = 0 [pid 6574] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6585] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6584] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6583] <... futex resumed>) = 1 [pid 6581] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6579] <... futex resumed>) = 0 [pid 6576] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6585] <... setsockopt resumed>) = 0 [pid 6584] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6583] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6582] <... sendto resumed>) = 1 [pid 6581] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6580] <... futex resumed>) = 1 [pid 6579] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6578] <... futex resumed>) = 0 [pid 6577] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6566] <... futex resumed>) = 0 [pid 6585] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6584] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6583] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6582] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6579] <... futex resumed>) = 0 [pid 6585] <... futex resumed>) = 0 [pid 6584] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6583] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6580] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6579] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6578] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6577] <... futex resumed>) = 0 [pid 6585] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6584] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6583] <... sendto resumed>) = 1 [pid 6582] <... futex resumed>) = 1 [pid 6581] <... sendto resumed>) = 1 [pid 6580] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6578] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6574] <... futex resumed>) = 0 [pid 6566] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6577] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6584] <... futex resumed>) = 0 [pid 6583] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6574] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6584] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6583] <... futex resumed>) = 1 [pid 6579] <... futex resumed>) = 0 [pid 6574] <... futex resumed>) = 0 [pid 6583] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6579] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6574] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6583] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6582] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6580] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6579] <... futex resumed>) = 0 [pid 6578] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6577] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6566] <... futex resumed>) = 0 [pid 6581] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6583] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6582] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6579] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6585] <... futex resumed>) = 0 [pid 6583] <... openat resumed>) = 4 [pid 6578] <... futex resumed>) = 1 [pid 6577] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6566] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6585] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6584] <... futex resumed>) = 0 [pid 6583] write(4, "5", 1 [pid 6582] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6581] <... futex resumed>) = 1 [pid 6580] <... sendto resumed>) = 1 [pid 6578] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6577] <... futex resumed>) = 1 [pid 6576] <... futex resumed>) = 0 [pid 6585] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6584] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6583] <... write resumed>) = 1 [pid 6582] <... futex resumed>) = 1 [pid 6581] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6580] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6577] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6576] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6574] <... futex resumed>) = 0 [pid 6585] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6584] <... setsockopt resumed>) = 0 [pid 6583] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6582] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6581] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6580] <... futex resumed>) = 1 [pid 6576] <... futex resumed>) = 0 [pid 6574] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6566] <... futex resumed>) = 0 [pid 6585] <... futex resumed>) = 1 [pid 6584] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6583] <... setsockopt resumed>) = 0 [pid 6582] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6581] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6580] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6578] <... futex resumed>) = 0 [pid 6576] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6574] <... futex resumed>) = 0 [pid 6566] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6585] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6584] <... futex resumed>) = 1 [pid 6583] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6582] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6581] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6580] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6578] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6577] <... futex resumed>) = 0 [pid 6574] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6566] <... futex resumed>) = 0 [pid 6585] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6584] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6583] <... futex resumed>) = 1 [pid 6582] <... openat resumed>) = 4 [pid 6581] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6580] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6579] <... futex resumed>) = 0 [pid 6578] <... futex resumed>) = 0 [pid 6577] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6566] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6585] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6584] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6583] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6582] write(4, "5", 1 [pid 6581] <... futex resumed>) = 1 [pid 6580] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6579] exit_group(0 [pid 6578] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6577] <... futex resumed>) = 0 [pid 6576] <... futex resumed>) = 0 [pid 6585] <... setsockopt resumed>) = 0 [pid 6584] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6583] <... futex resumed>) = ? [pid 6582] <... write resumed>) = 1 [pid 6581] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6580] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6579] <... exit_group resumed>) = ? [pid 6577] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6576] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6585] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6584] <... sendto resumed>) = 1 [pid 6583] +++ exited with 0 +++ [pid 6582] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6581] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6580] <... futex resumed>) = 1 [pid 6566] <... futex resumed>) = 0 [pid 6582] <... setsockopt resumed>) = 0 [pid 6581] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6580] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6566] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6585] <... futex resumed>) = 1 [pid 6584] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6582] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6581] <... openat resumed>) = 4 [pid 6580] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6579] +++ exited with 0 +++ [pid 6578] <... futex resumed>) = 0 [pid 6576] <... futex resumed>) = 0 [pid 6566] <... futex resumed>) = 0 [pid 6585] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6584] <... futex resumed>) = 1 [pid 6578] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6577] <... futex resumed>) = 0 [pid 6576] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6585] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6584] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6578] <... futex resumed>) = 0 [pid 6577] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6585] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6584] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6578] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6577] <... futex resumed>) = 0 [pid 6585] <... sendto resumed>) = 1 [pid 6584] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6577] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6585] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6584] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6585] <... futex resumed>) = 1 [pid 6584] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6578] <... futex resumed>) = 0 [pid 6585] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6584] <... futex resumed>) = 1 [pid 6578] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6577] <... futex resumed>) = 0 [pid 6585] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6584] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6578] <... futex resumed>) = 0 [pid 6577] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6585] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6584] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6578] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6577] <... futex resumed>) = 0 [pid 6585] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6584] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6577] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6585] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6584] <... openat resumed>) = 4 [pid 6585] <... futex resumed>) = 1 [pid 6584] write(4, "5", 1 [pid 6581] write(4, "5", 1 [pid 6578] <... futex resumed>) = 0 [pid 6580] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6566] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6585] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6584] <... write resumed>) = 1 [pid 6578] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6585] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6584] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6578] <... futex resumed>) = 0 [ 229.855413][ T6582] FAULT_INJECTION: forcing a failure. [ 229.855413][ T6582] name fail_futex, interval 1, probability 0, space 0, times 0 [ 229.869667][ T6582] CPU: 0 PID: 6582 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 229.873549][ T6584] FAULT_INJECTION: forcing a failure. [ 229.873549][ T6584] name fail_futex, interval 1, probability 0, space 0, times 0 [ 229.880196][ T6582] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 229.880212][ T6582] Call Trace: [ 229.880219][ T6582] [ 229.880228][ T6582] dump_stack_lvl+0xcd/0x134 [ 229.880261][ T6582] should_fail.cold+0x5/0xa [ 229.880288][ T6582] get_futex_key+0x5b2/0x1c50 [ 229.880311][ T6582] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 229.880340][ T6582] ? futex_setup_timer+0xf0/0xf0 [ 229.880373][ T6582] futex_wake+0xe4/0x490 [ 229.880401][ T6582] ? futex_wake_mark+0x1a0/0x1a0 [ 229.880427][ T6582] ? ptrace_stop.part.0+0x5ec/0xa80 [ 229.880454][ T6582] ? do_raw_spin_lock+0x120/0x2a0 [ 229.880479][ T6582] ? rwlock_bug.part.0+0x90/0x90 [ 229.958452][ T6582] ? _raw_spin_lock_irq+0x41/0x50 [ 229.963489][ T6582] do_futex+0x266/0x300 [ 229.967666][ T6582] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 229.973560][ T6582] ? find_held_lock+0x2d/0x110 [ 229.978344][ T6582] __x64_sys_futex+0x1b0/0x4a0 [ 229.983130][ T6582] ? do_futex+0x300/0x300 [ 229.987518][ T6582] ? _raw_spin_unlock_irq+0x1f/0x40 [ 229.992720][ T6582] ? lockdep_hardirqs_on+0x79/0x100 [ 229.997936][ T6582] ? _raw_spin_unlock_irq+0x2a/0x40 [ 230.003136][ T6582] ? ptrace_notify+0xfa/0x140 [ 230.007818][ T6582] do_syscall_64+0x35/0xb0 [ 230.012243][ T6582] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 230.018144][ T6582] RIP: 0033:0x7fc128117db9 [ 230.022562][ T6582] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 230.042177][ T6582] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [pid 6585] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6584] <... setsockopt resumed>) = 0 [pid 6578] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6585] <... openat resumed>) = 4 [pid 6584] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6585] write(4, "5", 1 [pid 6581] <... write resumed>) = 1 [pid 6580] <... openat resumed>) = 4 [pid 6578] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6577] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6576] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6574] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6579, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6585] <... write resumed>) = 1 [pid 6581] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6580] write(4, "5", 1 [pid 6577] exit_group(0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 6585] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6581] <... setsockopt resumed>) = 0 [pid 6580] <... write resumed>) = 1 [pid 6577] <... exit_group resumed>) = ? [pid 3607] <... restart_syscall resumed>) = 0 [pid 6585] <... setsockopt resumed>) = 0 [pid 6581] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [ 230.050594][ T6582] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 230.058571][ T6582] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 230.066559][ T6582] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 230.074629][ T6582] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 230.082598][ T6582] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 230.090583][ T6582] [pid 6580] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6585] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6576] exit_group(0 [pid 6580] <... setsockopt resumed>) = 0 [pid 6576] <... exit_group resumed>) = ? [pid 6574] exit_group(0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6578] exit_group(0 [pid 6574] <... exit_group resumed>) = ? [pid 6578] <... exit_group resumed>) = ? [pid 3607] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6586 [ 230.106954][ T6581] FAULT_INJECTION: forcing a failure. [ 230.106954][ T6581] name fail_futex, interval 1, probability 0, space 0, times 0 [ 230.108049][ T6585] FAULT_INJECTION: forcing a failure. [ 230.108049][ T6585] name fail_futex, interval 1, probability 0, space 0, times 0 [ 230.133755][ T6581] CPU: 0 PID: 6581 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 230.144300][ T6581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 230.154373][ T6581] Call Trace: [ 230.157667][ T6581] [ 230.160604][ T6581] dump_stack_lvl+0xcd/0x134 [ 230.165230][ T6581] should_fail.cold+0x5/0xa [ 230.169755][ T6581] get_futex_key+0x5b2/0x1c50 [ 230.174446][ T6581] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 230.180452][ T6581] ? futex_setup_timer+0xf0/0xf0 [ 230.185419][ T6581] futex_wake+0xe4/0x490 [ 230.189686][ T6581] ? futex_wake_mark+0x1a0/0x1a0 [ 230.194639][ T6581] ? ptrace_stop.part.0+0x5ec/0xa80 [ 230.199855][ T6581] ? do_raw_spin_lock+0x120/0x2a0 [ 230.204904][ T6581] ? rwlock_bug.part.0+0x90/0x90 [ 230.209863][ T6581] ? _raw_spin_lock_irq+0x41/0x50 [ 230.214914][ T6581] do_futex+0x266/0x300 [ 230.214954][ T6580] FAULT_INJECTION: forcing a failure. [ 230.214954][ T6580] name fail_futex, interval 1, probability 0, space 0, times 0 [ 230.219078][ T6581] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 230.219104][ T6581] ? find_held_lock+0x2d/0x110 [ 230.219142][ T6581] __x64_sys_futex+0x1b0/0x4a0 [ 230.247281][ T6581] ? do_futex+0x300/0x300 [ 230.251628][ T6581] ? _raw_spin_unlock_irq+0x1f/0x40 [ 230.256841][ T6581] ? lockdep_hardirqs_on+0x79/0x100 [ 230.262054][ T6581] ? _raw_spin_unlock_irq+0x2a/0x40 [ 230.267277][ T6581] ? ptrace_notify+0xfa/0x140 [ 230.271984][ T6581] do_syscall_64+0x35/0xb0 [ 230.276419][ T6581] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 230.282335][ T6581] RIP: 0033:0x7fc128117db9 [ 230.286765][ T6581] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 230.306428][ T6581] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 230.314860][ T6581] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 230.322866][ T6581] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 230.330941][ T6581] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 230.338929][ T6581] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 230.346937][ T6581] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 230.354938][ T6581] [pid 6580] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6566] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6566] exit_group(0) = ? [ 230.358800][ T6584] CPU: 0 PID: 6584 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 230.369510][ T6584] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 230.379581][ T6584] Call Trace: [ 230.382871][ T6584] [ 230.385810][ T6584] dump_stack_lvl+0xcd/0x134 [ 230.390418][ T6584] should_fail.cold+0x5/0xa [ 230.394934][ T6584] get_futex_key+0x5b2/0x1c50 [ 230.399628][ T6584] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 230.405626][ T6584] ? futex_setup_timer+0xf0/0xf0 [ 230.410594][ T6584] futex_wake+0xe4/0x490 [ 230.414857][ T6584] ? futex_wake_mark+0x1a0/0x1a0 [ 230.419808][ T6584] ? ptrace_stop.part.0+0x5ec/0xa80 [ 230.425021][ T6584] ? do_raw_spin_lock+0x120/0x2a0 [ 230.430064][ T6584] ? rwlock_bug.part.0+0x90/0x90 [ 230.435011][ T6584] ? _raw_spin_lock_irq+0x41/0x50 [ 230.440064][ T6584] do_futex+0x266/0x300 [ 230.444239][ T6584] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 230.450149][ T6584] ? find_held_lock+0x2d/0x110 [ 230.454955][ T6584] __x64_sys_futex+0x1b0/0x4a0 [ 230.459741][ T6584] ? do_futex+0x300/0x300 [ 230.464089][ T6584] ? _raw_spin_unlock_irq+0x1f/0x40 [ 230.469305][ T6584] ? lockdep_hardirqs_on+0x79/0x100 [ 230.474526][ T6584] ? _raw_spin_unlock_irq+0x2a/0x40 [ 230.479742][ T6584] ? ptrace_notify+0xfa/0x140 [ 230.484438][ T6584] do_syscall_64+0x35/0xb0 [ 230.488971][ T6584] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 230.494886][ T6584] RIP: 0033:0x7fc128117db9 [ 230.499321][ T6584] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 230.518956][ T6584] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 230.527387][ T6584] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 230.535372][ T6584] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 230.543363][ T6584] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 230.551342][ T6584] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 ./strace-static-x86_64: Process 6586 attached [ 230.559337][ T6584] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 230.567344][ T6584] [ 230.575157][ T6585] CPU: 1 PID: 6585 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 230.585704][ T6585] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 230.595770][ T6585] Call Trace: [ 230.599056][ T6585] [ 230.601997][ T6585] dump_stack_lvl+0xcd/0x134 [ 230.606618][ T6585] should_fail.cold+0x5/0xa [ 230.611142][ T6585] get_futex_key+0x5b2/0x1c50 [ 230.615839][ T6585] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 230.621839][ T6585] ? futex_setup_timer+0xf0/0xf0 [ 230.626805][ T6585] futex_wake+0xe4/0x490 [ 230.631065][ T6585] ? futex_wake_mark+0x1a0/0x1a0 [ 230.636194][ T6585] ? ptrace_stop.part.0+0x5ec/0xa80 [ 230.641415][ T6585] ? do_raw_spin_lock+0x120/0x2a0 [ 230.646464][ T6585] ? rwlock_bug.part.0+0x90/0x90 [ 230.651414][ T6585] ? _raw_spin_lock_irq+0x41/0x50 [ 230.656476][ T6585] do_futex+0x266/0x300 [ 230.660650][ T6585] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 230.666560][ T6585] ? find_held_lock+0x2d/0x110 [ 230.671351][ T6585] __x64_sys_futex+0x1b0/0x4a0 [ 230.676141][ T6585] ? do_futex+0x300/0x300 [ 230.680488][ T6585] ? _raw_spin_unlock_irq+0x1f/0x40 [ 230.685705][ T6585] ? lockdep_hardirqs_on+0x79/0x100 [ 230.690913][ T6585] ? _raw_spin_unlock_irq+0x2a/0x40 [ 230.696127][ T6585] ? ptrace_notify+0xfa/0x140 [ 230.700808][ T6585] do_syscall_64+0x35/0xb0 [ 230.705230][ T6585] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 230.711136][ T6585] RIP: 0033:0x7fc128117db9 [ 230.715548][ T6585] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 230.735156][ T6585] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 230.743589][ T6585] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 230.751561][ T6585] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [pid 6586] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6586] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6586] setpgid(0, 0) = 0 [pid 6586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6586] write(3, "1000", 4) = 4 [pid 6586] close(3) = 0 [pid 6586] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6586] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6586] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6586] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6587], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6587 [ 230.759529][ T6585] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 230.767508][ T6585] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 230.775477][ T6585] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 230.783471][ T6585] [ 230.807241][ T6580] CPU: 1 PID: 6580 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 230.817790][ T6580] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 230.827862][ T6580] Call Trace: [ 230.831149][ T6580] [ 230.834090][ T6580] dump_stack_lvl+0xcd/0x134 [ 230.838704][ T6580] should_fail.cold+0x5/0xa [ 230.843228][ T6580] get_futex_key+0x5b2/0x1c50 [ 230.847921][ T6580] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 230.853921][ T6580] ? futex_setup_timer+0xf0/0xf0 [ 230.858889][ T6580] futex_wake+0xe4/0x490 [ 230.863155][ T6580] ? futex_wake_mark+0x1a0/0x1a0 [ 230.868108][ T6580] ? ptrace_stop.part.0+0x5ec/0xa80 [ 230.873325][ T6580] ? do_raw_spin_lock+0x120/0x2a0 [ 230.878369][ T6580] ? rwlock_bug.part.0+0x90/0x90 [ 230.883325][ T6580] ? _raw_spin_lock_irq+0x41/0x50 [ 230.888374][ T6580] do_futex+0x266/0x300 [ 230.892575][ T6580] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 230.898480][ T6580] ? find_held_lock+0x2d/0x110 [ 230.903256][ T6580] __x64_sys_futex+0x1b0/0x4a0 [ 230.908025][ T6580] ? do_futex+0x300/0x300 [ 230.912354][ T6580] ? _raw_spin_unlock_irq+0x1f/0x40 [ 230.917581][ T6580] ? lockdep_hardirqs_on+0x79/0x100 [ 230.922871][ T6580] ? _raw_spin_unlock_irq+0x2a/0x40 [ 230.928070][ T6580] ? ptrace_notify+0xfa/0x140 [ 230.932839][ T6580] do_syscall_64+0x35/0xb0 [ 230.937258][ T6580] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 230.943157][ T6580] RIP: 0033:0x7fc128117db9 [ 230.947603][ T6580] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 230.967247][ T6580] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 230.975668][ T6580] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 230.983728][ T6580] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 230.991699][ T6580] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 230.999669][ T6580] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 ./strace-static-x86_64: Process 6587 attached [pid 6586] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6584] <... futex resumed>) = ? [pid 6582] <... futex resumed>) = ? [pid 6587] set_robust_list(0x7fc1280c99e0, 24 [pid 6586] <... futex resumed>) = 0 [pid 6584] +++ exited with 0 +++ [pid 6577] +++ exited with 0 +++ [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6577, si_uid=0, si_status=0, si_utime=0, si_stime=24} --- [pid 6587] <... set_robust_list resumed>) = 0 [pid 6586] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6582] +++ exited with 0 +++ [pid 6574] +++ exited with 0 +++ [pid 3608] restart_syscall(<... resuming interrupted clone ...> [pid 6587] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6574, si_uid=0, si_status=0, si_utime=0, si_stime=25} --- [pid 3608] <... restart_syscall resumed>) = 0 [pid 6587] <... socket resumed>) = 3 [pid 3611] restart_syscall(<... resuming interrupted clone ...> [pid 6587] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3611] <... restart_syscall resumed>) = 0 [pid 6587] <... futex resumed>) = 1 [pid 6586] <... futex resumed>) = 0 [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6587] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6586] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6587] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6586] <... futex resumed>) = 0 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3608] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6588 ./strace-static-x86_64: Process 6588 attached [pid 6587] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6586] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6588] set_robust_list(0x5555564f35e0, 24 [pid 6587] <... setsockopt resumed>) = 0 [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6589 ./strace-static-x86_64: Process 6589 attached [pid 6588] <... set_robust_list resumed>) = 0 [pid 6587] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6588] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6587] <... futex resumed>) = 1 [pid 6586] <... futex resumed>) = 0 [pid 6589] set_robust_list(0x5555564f35e0, 24 [pid 6588] <... prctl resumed>) = 0 [pid 6587] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6586] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6589] <... set_robust_list resumed>) = 0 [pid 6588] setpgid(0, 0 [pid 6587] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6586] <... futex resumed>) = 0 [pid 6589] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6588] <... setpgid resumed>) = 0 [pid 6587] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6586] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6589] <... prctl resumed>) = 0 [pid 6588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6587] <... setsockopt resumed>) = 0 [pid 6589] setpgid(0, 0 [pid 6587] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6588] <... openat resumed>) = 3 [pid 6589] <... setpgid resumed>) = 0 [pid 6588] write(3, "1000", 4 [pid 6587] <... futex resumed>) = 1 [pid 6586] <... futex resumed>) = 0 [pid 6589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6588] <... write resumed>) = 4 [pid 6587] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6586] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6589] <... openat resumed>) = 3 [pid 6588] close(3 [pid 6587] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6586] <... futex resumed>) = 0 [pid 6589] write(3, "1000", 4 [pid 6588] <... close resumed>) = 0 [pid 6587] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6586] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6589] <... write resumed>) = 4 [pid 6588] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6587] <... setsockopt resumed>) = 0 [pid 6589] close(3 [pid 6588] <... futex resumed>) = 0 [pid 6587] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6589] <... close resumed>) = 0 [pid 6588] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6587] <... futex resumed>) = 1 [pid 6586] <... futex resumed>) = 0 [pid 6589] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6588] <... mmap resumed>) = 0x7fc1280a9000 [pid 6587] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6586] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6589] <... futex resumed>) = 0 [pid 6588] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6587] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6586] <... futex resumed>) = 0 [pid 6589] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6588] <... mprotect resumed>) = 0 [pid 6587] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6586] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6589] <... mmap resumed>) = 0x7fc1280a9000 [pid 6588] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6581] <... futex resumed>) = ? [ 231.007636][ T6580] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 231.015630][ T6580] [pid 6589] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6588] <... clone resumed>, parent_tid=[6590], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6590 [pid 6587] <... sendto resumed>) = 1 [pid 6589] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6588] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6587] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6588] <... futex resumed>) = 0 [pid 6587] <... futex resumed>) = 1 [pid 6586] <... futex resumed>) = 0 [pid 6589] <... clone resumed>, parent_tid=[6591], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6591 [pid 6588] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6587] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6586] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6590 attached [pid 6589] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6587] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6586] <... futex resumed>) = 0 [pid 6590] set_robust_list(0x7fc1280c99e0, 24 [pid 6589] <... futex resumed>) = 0 [pid 6587] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6586] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6590] <... set_robust_list resumed>) = 0 [pid 6589] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6590] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6587] <... sendto resumed>) = 1 [pid 6590] <... socket resumed>) = 3 [pid 6587] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6590] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6587] <... futex resumed>) = 1 [pid 6586] <... futex resumed>) = 0 [pid 6590] <... futex resumed>) = 1 [pid 6588] <... futex resumed>) = 0 [pid 6587] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6586] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6590] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6588] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6587] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6586] <... futex resumed>) = 0 [pid 6581] +++ exited with 0 +++ [pid 6576] +++ exited with 0 +++ [pid 6590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6588] <... futex resumed>) = 0 [pid 6587] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6586] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6591 attached [pid 6590] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6588] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6587] <... openat resumed>) = 4 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6576, si_uid=0, si_status=0, si_utime=0, si_stime=24} --- [pid 6591] set_robust_list(0x7fc1280c99e0, 24 [pid 6590] <... setsockopt resumed>) = 0 [pid 6587] write(4, "5", 1 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 6591] <... set_robust_list resumed>) = 0 [pid 6590] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6587] <... write resumed>) = 1 [pid 3615] <... restart_syscall resumed>) = 0 [pid 6591] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6590] <... futex resumed>) = 1 [pid 6588] <... futex resumed>) = 0 [pid 6587] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6591] <... socket resumed>) = 3 [pid 6590] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6588] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6587] <... setsockopt resumed>) = 0 [pid 6591] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6588] <... futex resumed>) = 0 [pid 6587] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6591] <... futex resumed>) = 1 [pid 6590] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6589] <... futex resumed>) = 0 [pid 6588] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6587] <... futex resumed>) = 1 [pid 6586] <... futex resumed>) = 0 [pid 6591] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6590] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6589] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6587] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6586] exit_group(0 [pid 6591] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6590] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6589] <... futex resumed>) = 0 [pid 6587] <... futex resumed>) = ? [pid 6586] <... exit_group resumed>) = ? [pid 3615] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6592 [pid 6591] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6590] <... futex resumed>) = 1 [pid 6589] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6588] <... futex resumed>) = 0 [pid 6587] +++ exited with 0 +++ [pid 6591] <... setsockopt resumed>) = 0 [pid 6591] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6590] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6589] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6588] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6586] +++ exited with 0 +++ ./strace-static-x86_64: Process 6592 attached [pid 6591] <... futex resumed>) = 0 [pid 6590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6589] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6588] <... futex resumed>) = 0 [pid 6592] set_robust_list(0x5555564f35e0, 24 [pid 6591] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6590] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6589] <... futex resumed>) = 0 [pid 6588] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6586, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 6592] <... set_robust_list resumed>) = 0 [pid 6591] <... setsockopt resumed>) = 0 [pid 6590] <... setsockopt resumed>) = 0 [pid 6589] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 6592] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6591] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6590] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6589] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] <... restart_syscall resumed>) = 0 [pid 6592] <... prctl resumed>) = 0 [pid 6591] <... futex resumed>) = 0 [pid 6590] <... futex resumed>) = 1 [pid 6589] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6588] <... futex resumed>) = 0 [pid 6592] setpgid(0, 0 [pid 6591] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6590] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6589] <... futex resumed>) = 0 [pid 6588] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6592] <... setpgid resumed>) = 0 [pid 6591] <... setsockopt resumed>) = 0 [pid 6590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6589] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6588] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6591] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6590] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6589] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6588] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6592] <... openat resumed>) = 3 [pid 6591] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6593 [pid 6592] write(3, "1000", 4 [pid 6591] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6590] <... sendto resumed>) = 1 [pid 6589] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6593 attached [pid 6592] <... write resumed>) = 4 [pid 6591] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6590] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6589] <... futex resumed>) = 0 [pid 6593] set_robust_list(0x5555564f35e0, 24 [pid 6592] close(3 [pid 6591] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6590] <... futex resumed>) = 1 [pid 6589] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6588] <... futex resumed>) = 0 [pid 6585] <... futex resumed>) = ? [pid 6593] <... set_robust_list resumed>) = 0 [pid 6592] <... close resumed>) = 0 [pid 6591] <... sendto resumed>) = 1 [pid 6590] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6588] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6585] +++ exited with 0 +++ [pid 6578] +++ exited with 0 +++ [pid 6593] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6592] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6591] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6588] <... futex resumed>) = 0 [pid 6593] <... prctl resumed>) = 0 [pid 6592] <... futex resumed>) = 0 [pid 6591] <... futex resumed>) = 1 [pid 6590] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6589] <... futex resumed>) = 0 [pid 6588] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6578, si_uid=0, si_status=0, si_utime=0, si_stime=36} --- [pid 6593] setpgid(0, 0 [pid 6592] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6591] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6590] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6589] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6593] <... setpgid resumed>) = 0 [pid 6592] <... mmap resumed>) = 0x7fc1280a9000 [pid 6591] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6590] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6589] <... futex resumed>) = 0 [pid 6593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6592] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6591] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6590] <... futex resumed>) = 1 [pid 6589] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6588] <... futex resumed>) = 0 [pid 3614] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6594 [pid 6593] <... openat resumed>) = 3 [pid 6592] <... mprotect resumed>) = 0 [pid 6591] <... sendto resumed>) = 1 [pid 6590] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6588] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6594 attached [pid 6593] write(3, "1000", 4 [pid 6592] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6591] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6588] <... futex resumed>) = 0 [pid 6594] set_robust_list(0x5555564f35e0, 24 [pid 6593] <... write resumed>) = 4 [pid 6591] <... futex resumed>) = 1 [pid 6590] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6589] <... futex resumed>) = 0 [pid 6588] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6580] <... futex resumed>) = ? ./strace-static-x86_64: Process 6595 attached [pid 6594] <... set_robust_list resumed>) = 0 [pid 6593] close(3 [pid 6592] <... clone resumed>, parent_tid=[6595], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6595 [pid 6591] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6590] <... openat resumed>) = 4 [pid 6589] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6580] +++ exited with 0 +++ [pid 6566] +++ exited with 0 +++ [pid 6595] set_robust_list(0x7fc1280c99e0, 24 [pid 6594] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6593] <... close resumed>) = 0 [pid 6592] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6591] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6590] write(4, "5", 1 [pid 6589] <... futex resumed>) = 0 [pid 6595] <... set_robust_list resumed>) = 0 [pid 6594] <... prctl resumed>) = 0 [pid 6593] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6592] <... futex resumed>) = 0 [pid 6591] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6590] <... write resumed>) = 1 [pid 6589] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6566, si_uid=0, si_status=0, si_utime=0, si_stime=32} --- [pid 6595] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6594] setpgid(0, 0 [pid 6593] <... futex resumed>) = 0 [pid 6592] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6591] <... openat resumed>) = 4 [pid 6590] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 3610] restart_syscall(<... resuming interrupted clone ...> [pid 6595] <... socket resumed>) = 3 [pid 6594] <... setpgid resumed>) = 0 [pid 6593] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6591] write(4, "5", 1 [pid 6590] <... setsockopt resumed>) = 0 [pid 3610] <... restart_syscall resumed>) = 0 [pid 6595] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6593] <... mmap resumed>) = 0x7fc1280a9000 [pid 6591] <... write resumed>) = 1 [pid 6590] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6595] <... futex resumed>) = 1 [pid 6594] <... openat resumed>) = 3 [pid 6593] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6592] <... futex resumed>) = 0 [pid 6591] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6594] write(3, "1000", 4 [pid 6593] <... mprotect resumed>) = 0 [pid 6591] <... setsockopt resumed>) = 0 [pid 6594] <... write resumed>) = 4 [pid 6593] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6591] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6594] close(3 [pid 6591] <... futex resumed>) = 1 [pid 6589] <... futex resumed>) = 0 [pid 6594] <... close resumed>) = 0 [pid 6593] <... clone resumed>, parent_tid=[6596], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6596 [pid 6591] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6589] exit_group(0 [pid 6594] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6593] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6591] <... futex resumed>) = ? [pid 6589] <... exit_group resumed>) = ? [pid 6594] <... futex resumed>) = 0 [pid 6593] <... futex resumed>) = 0 [pid 6591] +++ exited with 0 +++ [pid 6589] +++ exited with 0 +++ [pid 6595] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6594] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6593] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6592] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6589, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 6596 attached [pid 6595] <... setsockopt resumed>) = 0 [pid 6594] <... mmap resumed>) = 0x7fc1280a9000 [pid 6592] <... futex resumed>) = 0 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6596] set_robust_list(0x7fc1280c99e0, 24 [pid 6595] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6594] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6592] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6596] <... set_robust_list resumed>) = 0 [pid 6595] <... futex resumed>) = 0 [pid 6594] <... mprotect resumed>) = 0 [pid 6592] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6596] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6595] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6594] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6592] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3610] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6597 [pid 6596] <... socket resumed>) = 3 [pid 6595] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6592] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6597 attached [pid 6596] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6595] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6594] <... clone resumed>, parent_tid=[6598], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6598 [pid 6592] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6597] set_robust_list(0x5555564f35e0, 24 [pid 6596] <... futex resumed>) = 1 [pid 6595] <... setsockopt resumed>) = 0 [pid 6594] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6593] <... futex resumed>) = 0 [pid 6597] <... set_robust_list resumed>) = 0 [pid 6596] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6594] <... futex resumed>) = 0 [pid 6593] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6599 ./strace-static-x86_64: Process 6598 attached [pid 6597] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6596] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6594] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6593] <... futex resumed>) = 0 [pid 6598] set_robust_list(0x7fc1280c99e0, 24 [pid 6597] <... prctl resumed>) = 0 [pid 6596] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6593] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6598] <... set_robust_list resumed>) = 0 [pid 6597] setpgid(0, 0 [pid 6596] <... setsockopt resumed>) = 0 [pid 6598] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6597] <... setpgid resumed>) = 0 [pid 6596] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6598] <... socket resumed>) = 3 [pid 6597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6596] <... futex resumed>) = 1 [pid 6593] <... futex resumed>) = 0 [pid 6598] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6597] <... openat resumed>) = 3 [pid 6596] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6593] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6598] <... futex resumed>) = 1 [pid 6597] write(3, "1000", 4 [pid 6596] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6594] <... futex resumed>) = 0 [pid 6593] <... futex resumed>) = 0 [pid 6598] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6597] <... write resumed>) = 4 [pid 6596] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6594] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6593] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6598] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6597] close(3 [pid 6596] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6594] <... futex resumed>) = 0 [pid 6598] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6597] <... close resumed>) = 0 [pid 6596] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6594] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6598] <... setsockopt resumed>) = 0 [pid 6597] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6596] <... futex resumed>) = 1 [pid 6593] <... futex resumed>) = 0 [pid 6598] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6597] <... futex resumed>) = 0 [pid 6596] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6593] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6598] <... futex resumed>) = 1 [pid 6597] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6596] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6594] <... futex resumed>) = 0 [pid 6593] <... futex resumed>) = 0 [pid 6598] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6597] <... mmap resumed>) = 0x7fc1280a9000 [ 231.173828][ T6590] FAULT_INJECTION: forcing a failure. [ 231.173828][ T6590] name fail_futex, interval 1, probability 0, space 0, times 0 [ 231.199075][ T6590] CPU: 0 PID: 6590 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 231.209644][ T6590] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 231.219727][ T6590] Call Trace: [pid 6596] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6594] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6593] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6598] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6597] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6596] <... setsockopt resumed>) = 0 [pid 6594] <... futex resumed>) = 0 [pid 6598] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6597] <... mprotect resumed>) = 0 [pid 6596] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6594] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6598] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6597] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6596] <... futex resumed>) = 1 [pid 6593] <... futex resumed>) = 0 [ 231.223029][ T6590] [ 231.225981][ T6590] dump_stack_lvl+0xcd/0x134 [ 231.230612][ T6590] should_fail.cold+0x5/0xa [ 231.235152][ T6590] get_futex_key+0x5b2/0x1c50 [ 231.239858][ T6590] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 231.245873][ T6590] ? futex_setup_timer+0xf0/0xf0 [ 231.250857][ T6590] futex_wake+0xe4/0x490 [ 231.255143][ T6590] ? futex_wake_mark+0x1a0/0x1a0 [ 231.260111][ T6590] ? ptrace_stop.part.0+0x5ec/0xa80 [ 231.263886][ T6596] FAULT_INJECTION: forcing a failure. [ 231.263886][ T6596] name fail_futex, interval 1, probability 0, space 0, times 0 [ 231.265333][ T6590] ? do_raw_spin_lock+0x120/0x2a0 [ 231.265361][ T6590] ? rwlock_bug.part.0+0x90/0x90 [ 231.265382][ T6590] ? _raw_spin_lock_irq+0x41/0x50 [ 231.265412][ T6590] do_futex+0x266/0x300 [ 231.265436][ T6590] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 231.265458][ T6590] ? find_held_lock+0x2d/0x110 [ 231.265492][ T6590] __x64_sys_futex+0x1b0/0x4a0 [ 231.265519][ T6590] ? do_futex+0x300/0x300 [ 231.265536][ T6590] ? _raw_spin_unlock_irq+0x1f/0x40 [ 231.265564][ T6590] ? lockdep_hardirqs_on+0x79/0x100 [ 231.288942][ T6598] FAULT_INJECTION: forcing a failure. [ 231.288942][ T6598] name fail_futex, interval 1, probability 0, space 0, times 0 [ 231.293253][ T6590] ? _raw_spin_unlock_irq+0x2a/0x40 [ 231.345521][ T6590] ? ptrace_notify+0xfa/0x140 [ 231.350301][ T6590] do_syscall_64+0x35/0xb0 [ 231.354721][ T6590] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 231.360622][ T6590] RIP: 0033:0x7fc128117db9 [ 231.365038][ T6590] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 231.384747][ T6590] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 231.393173][ T6590] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 231.401151][ T6590] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 231.409129][ T6590] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 231.417103][ T6590] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [pid 6598] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6596] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6593] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6598] <... futex resumed>) = 1 [pid 6597] <... clone resumed>, parent_tid=[6600], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6600 [pid 6596] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6594] <... futex resumed>) = 0 [pid 6593] <... futex resumed>) = 0 [pid 6598] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6597] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6596] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6594] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6593] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6598] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6597] <... futex resumed>) = 0 [pid 6596] <... sendto resumed>) = 1 [pid 6594] <... futex resumed>) = 0 [pid 6598] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6597] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6596] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6594] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6600 attached [pid 6598] <... setsockopt resumed>) = 0 [pid 6596] <... futex resumed>) = 1 [pid 6593] <... futex resumed>) = 0 [pid 6600] set_robust_list(0x7fc1280c99e0, 24 [pid 6598] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6596] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6593] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6600] <... set_robust_list resumed>) = 0 [pid 6598] <... futex resumed>) = 1 [pid 6596] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6594] <... futex resumed>) = 0 [pid 6593] <... futex resumed>) = 0 [pid 6600] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6598] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6596] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6594] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6593] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6600] <... socket resumed>) = 3 [pid 6598] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6596] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6594] <... futex resumed>) = 0 [pid 6600] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6598] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6596] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6594] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6600] <... futex resumed>) = 1 [pid 6598] <... sendto resumed>) = 1 [pid 6597] <... futex resumed>) = 0 [pid 6596] <... futex resumed>) = 1 [pid 6593] <... futex resumed>) = 0 [pid 6600] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6598] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6597] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6596] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6593] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6600] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6598] <... futex resumed>) = 1 [pid 6597] <... futex resumed>) = 0 [pid 6596] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6594] <... futex resumed>) = 0 [pid 6593] <... futex resumed>) = 0 [pid 6600] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6598] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6597] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6596] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6594] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6593] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6600] <... setsockopt resumed>) = 0 [pid 6598] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6596] <... openat resumed>) = 4 [pid 6594] <... futex resumed>) = 0 [pid 6600] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6598] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6596] write(4, "5", 1 [pid 6594] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6600] <... futex resumed>) = 1 [pid 6598] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6597] <... futex resumed>) = 0 [pid 6596] <... write resumed>) = 1 [pid 6600] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6598] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6597] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6596] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6600] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6598] <... futex resumed>) = 1 [pid 6597] <... futex resumed>) = 0 [pid 6596] <... setsockopt resumed>) = 0 [pid 6594] <... futex resumed>) = 0 [pid 6600] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6598] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6597] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6596] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6594] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6600] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6598] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6594] <... futex resumed>) = 0 [pid 6600] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6598] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6594] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6600] <... futex resumed>) = 1 [pid 6598] <... openat resumed>) = 4 [pid 6597] <... futex resumed>) = 0 [pid 6600] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6598] write(4, "5", 1 [pid 6597] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6600] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6598] <... write resumed>) = 1 [pid 6597] <... futex resumed>) = 0 [pid 6600] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6598] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6597] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6600] <... setsockopt resumed>) = 0 [pid 6598] <... setsockopt resumed>) = 0 [pid 6600] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6598] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6600] <... futex resumed>) = 1 [pid 6597] <... futex resumed>) = 0 [pid 6600] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6597] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6600] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6597] <... futex resumed>) = 0 [pid 6600] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6597] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6600] <... sendto resumed>) = 1 [pid 6600] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6593] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6600] <... futex resumed>) = 1 [pid 6597] <... futex resumed>) = 0 [pid 6593] exit_group(0 [pid 6592] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6600] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6597] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6593] <... exit_group resumed>) = ? [pid 6592] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6600] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6597] <... futex resumed>) = 0 [pid 6592] <... futex resumed>) = 0 [pid 6600] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6597] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6592] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6600] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6592] <... mmap resumed>) = 0x7fc128088000 [pid 6600] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6592] mprotect(0x7fc128089000, 131072, PROT_READ|PROT_WRITE [pid 6600] <... futex resumed>) = 1 [pid 6597] <... futex resumed>) = 0 [pid 6592] <... mprotect resumed>) = 0 [pid 6600] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6597] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6592] clone(child_stack=0x7fc1280a83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6600] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6597] <... futex resumed>) = 0 [pid 6600] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6597] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6594] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6592] <... clone resumed>, parent_tid=[6601], tls=0x7fc1280a8700, child_tidptr=0x7fc1280a89d0) = 6601 [pid 6600] <... openat resumed>) = 4 [pid 6594] exit_group(0 [pid 6592] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6600] write(4, "5", 1 [pid 6597] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6595] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6594] <... exit_group resumed>) = ? [pid 6592] <... futex resumed>) = 0 [pid 6588] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6600] <... write resumed>) = 1 [ 231.425072][ T6590] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 231.433059][ T6590] [ 231.440729][ T6596] CPU: 1 PID: 6596 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 231.451280][ T6596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 231.461355][ T6596] Call Trace: [ 231.464678][ T6596] [ 231.467795][ T6596] dump_stack_lvl+0xcd/0x134 [ 231.472426][ T6596] should_fail.cold+0x5/0xa [ 231.476959][ T6596] get_futex_key+0x5b2/0x1c50 [ 231.481656][ T6596] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 231.487658][ T6596] ? futex_setup_timer+0xf0/0xf0 [ 231.492624][ T6596] futex_wake+0xe4/0x490 [ 231.496902][ T6596] ? futex_wake_mark+0x1a0/0x1a0 [ 231.501870][ T6596] ? ptrace_stop.part.0+0x5ec/0xa80 [ 231.507096][ T6596] ? do_raw_spin_lock+0x120/0x2a0 [ 231.512143][ T6596] ? rwlock_bug.part.0+0x90/0x90 [ 231.517100][ T6596] ? _raw_spin_lock_irq+0x41/0x50 [ 231.522246][ T6596] do_futex+0x266/0x300 [ 231.526426][ T6596] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 231.532333][ T6596] ? find_held_lock+0x2d/0x110 [ 231.537121][ T6596] __x64_sys_futex+0x1b0/0x4a0 [ 231.541910][ T6596] ? do_futex+0x300/0x300 [ 231.546254][ T6596] ? _raw_spin_unlock_irq+0x1f/0x40 [ 231.551471][ T6596] ? lockdep_hardirqs_on+0x79/0x100 [ 231.556682][ T6596] ? _raw_spin_unlock_irq+0x2a/0x40 [ 231.561901][ T6596] ? ptrace_notify+0xfa/0x140 [ 231.566596][ T6596] do_syscall_64+0x35/0xb0 [ 231.571023][ T6596] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 231.576930][ T6596] RIP: 0033:0x7fc128117db9 [ 231.581363][ T6596] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 231.601007][ T6596] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 231.609448][ T6596] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 231.617601][ T6596] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [pid 6592] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6601 attached ./strace-static-x86_64: Process 6599 attached [pid 6600] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6595] <... futex resumed>) = 0 [pid 6588] exit_group(0 [pid 6600] <... setsockopt resumed>) = 0 [ 231.625581][ T6596] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 231.633574][ T6596] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 231.641570][ T6596] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 231.649575][ T6596] [ 231.652603][ T6598] CPU: 0 PID: 6598 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 231.660986][ T6600] FAULT_INJECTION: forcing a failure. [ 231.660986][ T6600] name fail_futex, interval 1, probability 0, space 0, times 0 [pid 6600] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6597] exit_group(0) = ? [pid 6592] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6592] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 231.663110][ T6598] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 231.663127][ T6598] Call Trace: [ 231.663136][ T6598] [ 231.663145][ T6598] dump_stack_lvl+0xcd/0x134 [ 231.696805][ T6598] should_fail.cold+0x5/0xa [ 231.701333][ T6598] get_futex_key+0x5b2/0x1c50 [ 231.706028][ T6598] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 231.712046][ T6598] ? futex_setup_timer+0xf0/0xf0 [ 231.717018][ T6598] futex_wake+0xe4/0x490 [ 231.721291][ T6598] ? futex_wake_mark+0x1a0/0x1a0 [pid 6592] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6601] set_robust_list(0x7fc1280a89e0, 24 [pid 6599] set_robust_list(0x5555564f35e0, 24 [pid 6595] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6588] <... exit_group resumed>) = ? [pid 6601] <... set_robust_list resumed>) = 0 [pid 6599] <... set_robust_list resumed>) = 0 [pid 6595] <... sendto resumed>) = 1 [pid 6601] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6599] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6595] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6601] <... setsockopt resumed>) = 0 [pid 6599] <... prctl resumed>) = 0 [pid 6595] <... futex resumed>) = 1 [pid 6592] <... futex resumed>) = 0 [pid 6601] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6599] setpgid(0, 0 [pid 6595] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6592] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [ 231.726271][ T6598] ? ptrace_stop.part.0+0x5ec/0xa80 [ 231.731500][ T6598] ? do_raw_spin_lock+0x120/0x2a0 [ 231.736547][ T6598] ? rwlock_bug.part.0+0x90/0x90 [ 231.741511][ T6598] ? _raw_spin_lock_irq+0x41/0x50 [ 231.746570][ T6598] do_futex+0x266/0x300 [ 231.750751][ T6598] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 231.756664][ T6598] ? find_held_lock+0x2d/0x110 [ 231.761468][ T6598] __x64_sys_futex+0x1b0/0x4a0 [ 231.766277][ T6598] ? do_futex+0x300/0x300 [ 231.770626][ T6598] ? _raw_spin_unlock_irq+0x1f/0x40 [ 231.775845][ T6598] ? lockdep_hardirqs_on+0x79/0x100 [ 231.781072][ T6598] ? _raw_spin_unlock_irq+0x2a/0x40 [ 231.786298][ T6598] ? ptrace_notify+0xfa/0x140 [ 231.791005][ T6598] do_syscall_64+0x35/0xb0 [ 231.795451][ T6598] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 231.801375][ T6598] RIP: 0033:0x7fc128117db9 [ 231.805799][ T6598] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [pid 6601] <... futex resumed>) = 0 [pid 6599] <... setpgid resumed>) = 0 [pid 6595] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6592] <... futex resumed>) = 0 [pid 6601] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6595] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6592] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6599] <... openat resumed>) = 3 [pid 6595] <... sendto resumed>) = 1 [pid 6599] write(3, "1000", 4 [pid 6595] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6599] <... write resumed>) = 4 [pid 6595] <... futex resumed>) = 1 [pid 6592] <... futex resumed>) = 0 [pid 6599] close(3 [pid 6595] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6592] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6599] <... close resumed>) = 0 [pid 6595] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6592] <... futex resumed>) = 0 [pid 6599] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6595] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6592] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6599] <... futex resumed>) = 0 [pid 6595] <... openat resumed>) = 4 [pid 6599] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6595] write(4, "5", 1 [pid 6599] <... mmap resumed>) = 0x7fc1280a9000 [pid 6595] <... write resumed>) = 1 [pid 6599] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6595] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6599] <... mprotect resumed>) = 0 [pid 6595] <... setsockopt resumed>) = 0 [pid 6599] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6595] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6592] <... futex resumed>) = 0 [pid 6599] <... clone resumed>, parent_tid=[6602], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6602 [pid 6595] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6592] exit_group(0 [pid 6601] <... futex resumed>) = ? [pid 6599] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6595] <... futex resumed>) = ? [pid 6592] <... exit_group resumed>) = ? [pid 6601] +++ exited with 0 +++ [pid 6599] <... futex resumed>) = 0 [pid 6595] +++ exited with 0 +++ [pid 6592] +++ exited with 0 +++ [pid 6599] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6592, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6603 ./strace-static-x86_64: Process 6603 attached [pid 6603] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6603] setpgid(0, 0) = 0 [pid 6603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6603] write(3, "1000", 4) = 4 [pid 6603] close(3) = 0 [pid 6603] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6603] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6603] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6603] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6604], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6604 [pid 6603] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6603] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6604 attached [pid 6604] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6604] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6604] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6603] <... futex resumed>) = 0 [pid 6604] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6603] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6604] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6603] <... futex resumed>) = 0 [pid 6604] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6603] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6604] <... setsockopt resumed>) = 0 [pid 6599] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6604] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6599] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6604] <... futex resumed>) = 1 [pid 6603] <... futex resumed>) = 0 [pid 6599] <... futex resumed>) = 0 [pid 6604] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6603] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6599] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6604] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6603] <... futex resumed>) = 0 [pid 6599] <... mmap resumed>) = 0x7fc128088000 [pid 6604] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6603] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6599] mprotect(0x7fc128089000, 131072, PROT_READ|PROT_WRITE [pid 6604] <... setsockopt resumed>) = 0 [pid 6599] <... mprotect resumed>) = 0 [pid 6604] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6599] clone(child_stack=0x7fc1280a83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6604] <... futex resumed>) = 1 [pid 6603] <... futex resumed>) = 0 [pid 6604] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6603] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6599] <... clone resumed>, parent_tid=[6605], tls=0x7fc1280a8700, child_tidptr=0x7fc1280a89d0) = 6605 [pid 6604] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6603] <... futex resumed>) = 0 [pid 6599] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6604] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6603] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6599] <... futex resumed>) = 0 [pid 6604] <... setsockopt resumed>) = 0 [pid 6599] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6605 attached [pid 6604] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6605] set_robust_list(0x7fc1280a89e0, 24 [pid 6604] <... futex resumed>) = 1 [pid 6603] <... futex resumed>) = 0 [pid 6605] <... set_robust_list resumed>) = 0 [pid 6604] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6603] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6605] setsockopt(-1, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6604] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6603] <... futex resumed>) = 0 [pid 6605] <... setsockopt resumed>) = -1 EBADF (Bad file descriptor) [pid 6604] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6603] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6605] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6604] <... sendto resumed>) = 1 [pid 6605] <... futex resumed>) = 1 [pid 6604] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6599] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6602 attached [pid 6605] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6604] <... futex resumed>) = 1 [pid 6603] <... futex resumed>) = 0 [pid 6599] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6605] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6604] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6603] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6602] set_robust_list(0x7fc1280c99e0, 24 [pid 6599] <... futex resumed>) = 0 [ 231.825439][ T6598] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 231.833876][ T6598] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 231.841870][ T6598] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 231.849866][ T6598] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 231.857866][ T6598] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 231.865866][ T6598] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 231.873884][ T6598] [ 231.890633][ T6600] CPU: 1 PID: 6600 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 231.901186][ T6600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 231.911255][ T6600] Call Trace: [ 231.914545][ T6600] [ 231.917481][ T6600] dump_stack_lvl+0xcd/0x134 [ 231.922083][ T6600] should_fail.cold+0x5/0xa [ 231.926590][ T6600] get_futex_key+0x5b2/0x1c50 [ 231.931268][ T6600] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 231.937253][ T6600] ? futex_setup_timer+0xf0/0xf0 [ 231.942197][ T6600] futex_wake+0xe4/0x490 [ 231.946446][ T6600] ? futex_wake_mark+0x1a0/0x1a0 [ 231.951384][ T6600] ? ptrace_stop.part.0+0x5ec/0xa80 [ 231.956601][ T6600] ? do_raw_spin_lock+0x120/0x2a0 [ 231.961628][ T6600] ? rwlock_bug.part.0+0x90/0x90 [ 231.966588][ T6600] ? _raw_spin_lock_irq+0x41/0x50 [ 231.971652][ T6600] do_futex+0x266/0x300 [ 231.975827][ T6600] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 231.981725][ T6600] ? find_held_lock+0x2d/0x110 [ 231.986506][ T6600] __x64_sys_futex+0x1b0/0x4a0 [ 231.991292][ T6600] ? do_futex+0x300/0x300 [ 231.995638][ T6600] ? _raw_spin_unlock_irq+0x1f/0x40 [ 232.000864][ T6600] ? lockdep_hardirqs_on+0x79/0x100 [ 232.006094][ T6600] ? _raw_spin_unlock_irq+0x2a/0x40 [ 232.011319][ T6600] ? ptrace_notify+0xfa/0x140 [ 232.016011][ T6600] do_syscall_64+0x35/0xb0 [ 232.020446][ T6600] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 232.026373][ T6600] RIP: 0033:0x7fc128117db9 [ 232.030803][ T6600] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 232.050432][ T6600] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 232.058867][ T6600] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 232.066867][ T6600] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 232.074841][ T6600] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 232.082814][ T6600] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [pid 6605] setsockopt(-1, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6604] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6603] <... futex resumed>) = 0 [pid 6602] <... set_robust_list resumed>) = 0 [pid 6599] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6596] <... futex resumed>) = ? [pid 6590] <... futex resumed>) = ? [pid 6603] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6602] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6596] +++ exited with 0 +++ [pid 6593] +++ exited with 0 +++ [pid 6590] +++ exited with 0 +++ [pid 6588] +++ exited with 0 +++ [pid 6605] <... setsockopt resumed>) = -1 EBADF (Bad file descriptor) [pid 6605] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6604] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6602] <... socket resumed>) = 3 [pid 6605] <... futex resumed>) = 1 [pid 6602] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6599] <... futex resumed>) = 0 [pid 6604] <... sendto resumed>) = 1 [pid 6602] <... futex resumed>) = 0 [pid 6602] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6599] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6605] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6588, si_uid=0, si_status=0, si_utime=0, si_stime=25} --- [pid 6604] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6593, si_uid=0, si_status=0, si_utime=0, si_stime=25} --- [pid 6602] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6599] <... futex resumed>) = 0 [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6604] <... futex resumed>) = 1 [pid 6603] <... futex resumed>) = 0 [pid 6602] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6599] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6602] <... setsockopt resumed>) = -1 EACCES (Permission denied) [pid 6602] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6602] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6603] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6599] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 6606 attached [pid 6606] set_robust_list(0x5555564f35e0, 24 [pid 6603] <... futex resumed>) = 0 [pid 6604] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6603] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6599] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6606 [pid 3607] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6607 [pid 6606] <... set_robust_list resumed>) = 0 [pid 6604] <... openat resumed>) = 4 [pid 6602] <... futex resumed>) = 0 [pid 6599] <... futex resumed>) = 1 [pid 6602] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6599] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6604] write(4, "5", 1 [pid 6606] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6606] setpgid(0, 0) = 0 [pid 6606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6602] <... sendto resumed>) = 1 [pid 6604] <... write resumed>) = 1 [pid 6602] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6604] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6602] <... futex resumed>) = 1 [pid 6599] <... futex resumed>) = 0 [pid 6604] <... setsockopt resumed>) = 0 [pid 6602] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6599] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6604] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6602] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6599] <... futex resumed>) = 0 [pid 6603] <... futex resumed>) = 0 [pid 6599] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6602] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6604] <... futex resumed>) = 1 [pid 6603] exit_group(0 [pid 6602] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6604] syscall_0xffffffffffffff91(0xffffff01, 0x7ffce88685d4, 0x40000001, 0, 0xe8, 0x7ffce88a1080 [pid 6603] <... exit_group resumed>) = ? [pid 6602] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6604] +++ exited with 0 +++ ./strace-static-x86_64: Process 6607 attached [pid 6606] <... openat resumed>) = 3 [pid 6607] set_robust_list(0x5555564f35e0, 24 [pid 6606] write(3, "1000", 4 [pid 6607] <... set_robust_list resumed>) = 0 [pid 6606] <... write resumed>) = 4 [pid 6607] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6606] close(3 [pid 6607] <... prctl resumed>) = 0 [pid 6606] <... close resumed>) = 0 [pid 6607] setpgid(0, 0 [pid 6606] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6602] <... futex resumed>) = 1 [pid 6599] <... futex resumed>) = 0 [pid 6607] <... setpgid resumed>) = 0 [pid 6606] <... futex resumed>) = 0 [pid 6602] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6599] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6606] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6603] +++ exited with 0 +++ [pid 6602] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6599] <... futex resumed>) = 0 [pid 6607] <... openat resumed>) = 3 [pid 6606] <... mmap resumed>) = 0x7fc1280a9000 [pid 6600] <... futex resumed>) = ? [pid 6598] <... futex resumed>) = ? [pid 6607] write(3, "1000", 4 [pid 6606] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6607] <... write resumed>) = 4 [pid 6606] <... mprotect resumed>) = 0 [pid 6602] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6599] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6603, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6607] close(3 [pid 6606] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6607] <... close resumed>) = 0 [pid 6598] +++ exited with 0 +++ [pid 6594] +++ exited with 0 +++ [pid 6607] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6606] <... clone resumed>, parent_tid=[6608], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6608 [pid 6602] <... openat resumed>) = 4 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6594, si_uid=0, si_status=0, si_utime=0, si_stime=35} --- [pid 6607] <... futex resumed>) = 0 [pid 6606] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6607] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6606] <... futex resumed>) = 0 [pid 6607] <... mmap resumed>) = 0x7fc1280a9000 [pid 6606] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6607] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6602] write(4, "5", 1 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6607] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6602] <... write resumed>) = 1 [pid 6607] <... clone resumed>, parent_tid=[6609], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6609 [pid 6607] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6607] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6608 attached [pid 6608] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6602] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 3615] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6610 [pid 3614] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6611 [pid 6602] <... setsockopt resumed>) = -1 EACCES (Permission denied) [pid 6602] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6599] <... futex resumed>) = 0 [pid 6602] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6608] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6599] exit_group(0 [pid 6608] <... socket resumed>) = 3 [pid 6608] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6606] <... futex resumed>) = 0 [pid 6608] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6606] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6605] <... futex resumed>) = ? [pid 6602] <... futex resumed>) = ? [pid 6599] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6611 attached [pid 6608] <... setsockopt resumed>) = 0 [pid 6606] <... futex resumed>) = 0 [pid 6605] +++ exited with 0 +++ [pid 6611] set_robust_list(0x5555564f35e0, 24 [pid 6608] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6606] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6611] <... set_robust_list resumed>) = 0 [pid 6608] <... futex resumed>) = 0 [pid 6606] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6611] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6608] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6606] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6611] <... prctl resumed>) = 0 [pid 6608] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6606] <... futex resumed>) = 0 [pid 6602] +++ exited with 0 +++ [pid 6599] +++ exited with 0 +++ [pid 6611] setpgid(0, 0 [pid 6608] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6606] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6599, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 6611] <... setpgid resumed>) = 0 [pid 6608] <... setsockopt resumed>) = 0 [pid 6611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6608] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6610 attached ./strace-static-x86_64: Process 6609 attached [pid 6611] <... openat resumed>) = 3 [pid 6608] <... futex resumed>) = 1 [pid 6606] <... futex resumed>) = 0 [pid 6600] +++ exited with 0 +++ [pid 6597] +++ exited with 0 +++ [pid 6611] write(3, "1000", 4 [pid 6608] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6606] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6611] <... write resumed>) = 4 [pid 6610] set_robust_list(0x5555564f35e0, 24 [pid 6609] set_robust_list(0x7fc1280c99e0, 24 [pid 6608] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6606] <... futex resumed>) = 0 [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6597, si_uid=0, si_status=0, si_utime=0, si_stime=28} --- [pid 6611] close(3 [pid 6610] <... set_robust_list resumed>) = 0 [pid 6609] <... set_robust_list resumed>) = 0 [pid 6608] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6606] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6611] <... close resumed>) = 0 [pid 6610] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6608] <... setsockopt resumed>) = 0 [pid 6611] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6608] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6611] <... futex resumed>) = 0 [pid 6608] <... futex resumed>) = 1 [pid 6606] <... futex resumed>) = 0 [pid 6611] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6608] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6606] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6611] <... mmap resumed>) = 0x7fc1280a9000 [pid 6610] <... prctl resumed>) = 0 [pid 6609] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6608] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6606] <... futex resumed>) = 0 [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6612 [pid 6611] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6610] setpgid(0, 0 [ 232.090800][ T6600] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 232.098785][ T6600] [pid 6608] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6606] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3610] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6613 [pid 6609] <... socket resumed>) = 3 ./strace-static-x86_64: Process 6613 attached ./strace-static-x86_64: Process 6612 attached [pid 6611] <... mprotect resumed>) = 0 [pid 6610] <... setpgid resumed>) = 0 [pid 6609] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6613] set_robust_list(0x5555564f35e0, 24 [pid 6612] set_robust_list(0x5555564f35e0, 24 [pid 6611] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6609] <... futex resumed>) = 1 [pid 6607] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6614 attached [pid 6613] <... set_robust_list resumed>) = 0 [pid 6612] <... set_robust_list resumed>) = 0 [pid 6610] <... openat resumed>) = 3 [pid 6609] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6608] <... sendto resumed>) = 1 [pid 6607] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6614] set_robust_list(0x7fc1280c99e0, 24 [pid 6613] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6612] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6611] <... clone resumed>, parent_tid=[6614], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6614 [pid 6610] write(3, "1000", 4 [pid 6609] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6608] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6607] <... futex resumed>) = 0 [pid 6614] <... set_robust_list resumed>) = 0 [pid 6613] <... prctl resumed>) = 0 [pid 6612] <... prctl resumed>) = 0 [pid 6611] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6610] <... write resumed>) = 4 [pid 6609] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6608] <... futex resumed>) = 1 [pid 6607] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6606] <... futex resumed>) = 0 [pid 6614] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6613] setpgid(0, 0 [pid 6612] setpgid(0, 0 [pid 6611] <... futex resumed>) = 0 [pid 6610] close(3 [pid 6609] <... setsockopt resumed>) = 0 [pid 6608] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6606] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6614] <... socket resumed>) = 3 [pid 6613] <... setpgid resumed>) = 0 [pid 6612] <... setpgid resumed>) = 0 [pid 6611] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6610] <... close resumed>) = 0 [pid 6609] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6608] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6606] <... futex resumed>) = 0 [pid 6614] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6611] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6608] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6606] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6614] <... futex resumed>) = 0 [pid 6611] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6610] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6609] <... futex resumed>) = 1 [pid 6608] <... sendto resumed>) = 1 [pid 6607] <... futex resumed>) = 0 [pid 6612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6614] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6611] <... futex resumed>) = 0 [pid 6610] <... futex resumed>) = 0 [pid 6609] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6608] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6607] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6614] <... setsockopt resumed>) = 0 [pid 6613] <... openat resumed>) = 3 [pid 6612] <... openat resumed>) = 3 [pid 6611] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6610] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6609] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6608] <... futex resumed>) = 1 [pid 6607] <... futex resumed>) = 0 [pid 6606] <... futex resumed>) = 0 [pid 6614] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6613] write(3, "1000", 4 [pid 6612] write(3, "1000", 4 [pid 6611] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6610] <... mmap resumed>) = 0x7fc1280a9000 [pid 6609] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6608] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6607] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6606] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6614] <... futex resumed>) = 0 [pid 6613] <... write resumed>) = 4 [pid 6612] <... write resumed>) = 4 [pid 6611] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6610] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6609] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6608] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6606] <... futex resumed>) = 0 [pid 6614] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6613] close(3 [pid 6612] close(3 [pid 6611] <... futex resumed>) = 0 [pid 6610] <... mprotect resumed>) = 0 [pid 6609] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6608] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6606] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6614] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6613] <... close resumed>) = 0 [pid 6612] <... close resumed>) = 0 [pid 6611] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6610] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6609] <... futex resumed>) = 1 [pid 6608] <... openat resumed>) = 4 [pid 6607] <... futex resumed>) = 0 [pid 6614] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6613] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6612] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6611] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6609] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6608] write(4, "5", 1 [pid 6607] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6614] <... futex resumed>) = 0 [pid 6613] <... futex resumed>) = 0 [pid 6612] <... futex resumed>) = 0 [pid 6611] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6610] <... clone resumed>, parent_tid=[6615], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6615 [pid 6609] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6608] <... write resumed>) = 1 [pid 6607] <... futex resumed>) = 0 [pid 6614] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6613] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6612] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6611] <... futex resumed>) = 0 [pid 6610] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6609] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6608] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6607] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6614] <... setsockopt resumed>) = 0 [pid 6613] <... mmap resumed>) = 0x7fc1280a9000 [pid 6612] <... mmap resumed>) = 0x7fc1280a9000 [pid 6611] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6610] <... futex resumed>) = 0 [pid 6609] <... setsockopt resumed>) = 0 [pid 6608] <... setsockopt resumed>) = 0 ./strace-static-x86_64: Process 6615 attached [pid 6614] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6613] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6612] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6611] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6610] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6609] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6608] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6615] set_robust_list(0x7fc1280c99e0, 24 [pid 6614] <... futex resumed>) = 0 [pid 6613] <... mprotect resumed>) = 0 [pid 6612] <... mprotect resumed>) = 0 [pid 6611] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6609] <... futex resumed>) = 1 [pid 6608] <... futex resumed>) = 1 [pid 6607] <... futex resumed>) = 0 [pid 6606] <... futex resumed>) = 0 [pid 6615] <... set_robust_list resumed>) = 0 [pid 6614] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6613] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6612] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6611] <... futex resumed>) = 0 [pid 6609] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6608] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6607] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6606] exit_group(0 [pid 6615] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6614] <... sendto resumed>) = 1 [pid 6611] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6609] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6608] <... futex resumed>) = ? [pid 6607] <... futex resumed>) = 0 [pid 6606] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6617 attached ./strace-static-x86_64: Process 6616 attached [pid 6615] <... socket resumed>) = 3 [pid 6614] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6613] <... clone resumed>, parent_tid=[6616], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6616 [pid 6612] <... clone resumed>, parent_tid=[6617], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6617 [pid 6611] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6609] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6608] +++ exited with 0 +++ [pid 6607] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6606] +++ exited with 0 +++ [pid 6617] set_robust_list(0x7fc1280c99e0, 24 [pid 6616] set_robust_list(0x7fc1280c99e0, 24 [pid 6615] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6614] <... futex resumed>) = 0 [pid 6613] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6612] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6611] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6615] <... futex resumed>) = 1 [pid 6614] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6611] <... futex resumed>) = 0 [pid 6610] <... futex resumed>) = 0 [pid 6617] <... set_robust_list resumed>) = 0 [pid 6615] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6614] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6613] <... futex resumed>) = 0 [pid 6612] <... futex resumed>) = 0 [pid 6611] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6610] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6609] <... sendto resumed>) = 1 [pid 6617] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6614] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6613] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6612] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6616] <... set_robust_list resumed>) = 0 [pid 6611] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6610] <... futex resumed>) = 0 [pid 6609] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6606, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6617] <... socket resumed>) = 3 [pid 6616] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6615] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6614] <... futex resumed>) = 0 [pid 6611] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6610] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6609] <... futex resumed>) = 1 [pid 6607] <... futex resumed>) = 0 [pid 3608] restart_syscall(<... resuming interrupted clone ...> [pid 6617] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6616] <... socket resumed>) = 3 [pid 6615] <... setsockopt resumed>) = 0 [pid 6614] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6611] <... futex resumed>) = 0 [pid 6609] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6607] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] <... restart_syscall resumed>) = 0 [pid 6617] <... futex resumed>) = 1 [pid 6616] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6615] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6614] <... openat resumed>) = 4 [pid 6612] <... futex resumed>) = 0 [pid 6611] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6609] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6607] <... futex resumed>) = 0 [pid 6617] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6616] <... futex resumed>) = 1 [pid 6615] <... futex resumed>) = 1 [pid 6614] write(4, "5", 1 [pid 6613] <... futex resumed>) = 0 [pid 6612] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6610] <... futex resumed>) = 0 [pid 6609] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6607] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6617] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6616] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6615] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6614] <... write resumed>) = 1 [pid 6613] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6612] <... futex resumed>) = 0 [pid 6610] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6609] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6617] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6614] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6613] <... futex resumed>) = 0 [pid 6612] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6610] <... futex resumed>) = 0 [pid 6609] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6617] <... setsockopt resumed>) = 0 [pid 6616] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6615] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6614] <... setsockopt resumed>) = 0 [pid 6613] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6610] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6609] <... futex resumed>) = 1 [pid 6607] <... futex resumed>) = 0 [pid 6617] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6615] <... setsockopt resumed>) = 0 [pid 6614] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6618 attached [pid 6617] <... futex resumed>) = 1 [pid 6616] <... setsockopt resumed>) = 0 [pid 6615] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6612] <... futex resumed>) = 0 [pid 6609] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6607] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6618 [pid 6618] set_robust_list(0x5555564f35e0, 24 [pid 6617] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6616] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6612] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6609] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6607] <... futex resumed>) = 0 [pid 6618] <... set_robust_list resumed>) = 0 [pid 6617] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6616] <... futex resumed>) = 1 [pid 6613] <... futex resumed>) = 0 [pid 6612] <... futex resumed>) = 0 [pid 6609] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6607] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6618] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6617] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6616] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6613] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6612] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6609] <... openat resumed>) = 4 [ 232.211245][ T6614] FAULT_INJECTION: forcing a failure. [ 232.211245][ T6614] name fail_futex, interval 1, probability 0, space 0, times 0 [ 232.225714][ T6614] CPU: 1 PID: 6614 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 232.236252][ T6614] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 232.246307][ T6614] Call Trace: [ 232.249585][ T6614] [ 232.252515][ T6614] dump_stack_lvl+0xcd/0x134 [ 232.257114][ T6614] should_fail.cold+0x5/0xa [ 232.261623][ T6614] get_futex_key+0x5b2/0x1c50 [ 232.266306][ T6614] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 232.272291][ T6614] ? futex_setup_timer+0xf0/0xf0 [ 232.277238][ T6614] futex_wake+0xe4/0x490 [ 232.281486][ T6614] ? futex_wake_mark+0x1a0/0x1a0 [ 232.286435][ T6614] ? ptrace_stop.part.0+0x5ec/0xa80 [ 232.291636][ T6614] ? do_raw_spin_lock+0x120/0x2a0 [ 232.296682][ T6614] ? rwlock_bug.part.0+0x90/0x90 [ 232.301621][ T6614] ? _raw_spin_lock_irq+0x41/0x50 [ 232.306652][ T6614] do_futex+0x266/0x300 [ 232.310811][ T6614] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 232.316706][ T6614] ? find_held_lock+0x2d/0x110 [ 232.321483][ T6614] __x64_sys_futex+0x1b0/0x4a0 [ 232.326254][ T6614] ? do_futex+0x300/0x300 [ 232.330581][ T6614] ? _raw_spin_unlock_irq+0x1f/0x40 [ 232.335782][ T6614] ? lockdep_hardirqs_on+0x79/0x100 [ 232.340984][ T6614] ? _raw_spin_unlock_irq+0x2a/0x40 [ 232.346190][ T6614] ? ptrace_notify+0xfa/0x140 [ 232.350875][ T6614] do_syscall_64+0x35/0xb0 [ 232.355293][ T6614] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 232.361190][ T6614] RIP: 0033:0x7fc128117db9 [ 232.365605][ T6614] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 232.385217][ T6614] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 232.393646][ T6614] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 232.401619][ T6614] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [pid 6618] <... prctl resumed>) = 0 [pid 6617] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6615] <... futex resumed>) = 1 [pid 6613] <... futex resumed>) = 0 [pid 6611] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6610] <... futex resumed>) = 0 [pid 6609] write(4, "5", 1 [pid 6615] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6612] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6611] exit_group(0 [pid 6610] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6607] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6611] <... exit_group resumed>) = ? [pid 6610] <... futex resumed>) = 0 [pid 6615] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6610] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6615] <... setsockopt resumed>) = 0 [pid 6615] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6618] setpgid(0, 0 [pid 6617] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6616] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6615] <... futex resumed>) = 1 [pid 6613] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6612] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6610] <... futex resumed>) = 0 [pid 6609] <... write resumed>) = 1 [pid 6617] <... futex resumed>) = 0 [pid 6616] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6615] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6612] <... futex resumed>) = 0 [pid 6610] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6609] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6618] <... setpgid resumed>) = 0 [pid 6617] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6610] <... futex resumed>) = 0 [pid 6609] <... setsockopt resumed>) = 0 [pid 6617] <... setsockopt resumed>) = 0 [pid 6616] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6615] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6612] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6610] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6617] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6616] <... futex resumed>) = 1 [pid 6614] <... futex resumed>) = ? [pid 6613] <... futex resumed>) = 0 [pid 6612] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6609] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6618] <... openat resumed>) = 3 [pid 6617] <... futex resumed>) = 0 [pid 6616] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6615] <... sendto resumed>) = 1 [pid 6614] +++ exited with 0 +++ [pid 6613] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6612] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6611] +++ exited with 0 +++ [pid 6615] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6610] <... futex resumed>) = 0 [pid 6615] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6610] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6610] <... futex resumed>) = 0 [pid 6615] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6610] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6615] <... sendto resumed>) = 1 [pid 6615] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6610] <... futex resumed>) = 0 [pid 6615] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6610] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6610] <... futex resumed>) = 0 [pid 6615] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6610] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6615] <... openat resumed>) = 4 [pid 6615] write(4, "5", 1) = 1 [pid 6615] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6615] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6610] <... futex resumed>) = 0 [pid 6615] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6610] exit_group(0 [pid 6615] <... futex resumed>) = ? [pid 6610] <... exit_group resumed>) = ? [pid 6615] +++ exited with 0 +++ [pid 6610] +++ exited with 0 +++ [pid 6607] exit_group(0) = ? [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6610, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [ 232.409604][ T6614] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 232.417575][ T6614] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 232.425545][ T6614] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 232.433529][ T6614] [ 232.450841][ T6609] FAULT_INJECTION: forcing a failure. [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6619 [pid 6618] write(3, "1000", 4 [pid 6617] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6613] <... futex resumed>) = 0 [pid 6612] <... futex resumed>) = 0 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6611, si_uid=0, si_status=0, si_utime=0, si_stime=23} --- ./strace-static-x86_64: Process 6619 attached [pid 6619] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6619] setpgid(0, 0) = 0 [pid 6619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6619] write(3, "1000", 4) = 4 [pid 6619] close(3) = 0 [pid 6619] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6619] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6619] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6619] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6620], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6620 [pid 6619] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6619] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6620 attached [pid 6620] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6620] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6620] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6619] <... futex resumed>) = 0 [pid 6619] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6619] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6620] <... futex resumed>) = 1 [pid 6620] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8) = 0 [pid 6620] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6619] <... futex resumed>) = 0 [pid 6619] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6619] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6620] <... futex resumed>) = 1 [pid 6620] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28) = 0 [pid 6620] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6619] <... futex resumed>) = 0 [pid 6619] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6619] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6620] <... futex resumed>) = 1 [pid 6620] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1) = 0 [pid 6620] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6619] <... futex resumed>) = 0 [pid 6619] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6619] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6620] <... futex resumed>) = 1 [pid 6620] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28) = 1 [pid 6620] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6619] <... futex resumed>) = 0 [ 232.450841][ T6609] name fail_futex, interval 1, probability 0, space 0, times 0 [ 232.464055][ T6609] CPU: 1 PID: 6609 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 232.474594][ T6609] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 232.484677][ T6609] Call Trace: [ 232.487974][ T6609] [ 232.490922][ T6609] dump_stack_lvl+0xcd/0x134 [ 232.495549][ T6609] should_fail.cold+0x5/0xa [ 232.500096][ T6609] get_futex_key+0x5b2/0x1c50 [ 232.504805][ T6609] ? lockdep_hardirqs_on_prepare+0x400/0x400 [pid 6619] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6619] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6620] <... futex resumed>) = 1 [pid 6620] sendto(3, "\x01", 1, 0, NULL, 0) = 1 [pid 6620] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6619] <... futex resumed>) = 0 [pid 6619] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6619] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6620] <... futex resumed>) = 1 [pid 6620] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 6620] write(4, "5", 1) = 1 [pid 6620] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6620] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6619] <... futex resumed>) = 0 [pid 6619] exit_group(0) = ? [pid 6620] <... futex resumed>) = ? [pid 6620] +++ exited with 0 +++ [pid 6619] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6619, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6621 ./strace-static-x86_64: Process 6621 attached [pid 6621] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6621] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6621] setpgid(0, 0) = 0 [pid 6621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6621] write(3, "1000", 4) = 4 [pid 6621] close(3) = 0 [pid 6621] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6621] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [ 232.510819][ T6609] ? futex_setup_timer+0xf0/0xf0 [ 232.515803][ T6609] futex_wake+0xe4/0x490 [ 232.520081][ T6609] ? futex_wake_mark+0x1a0/0x1a0 [ 232.525042][ T6609] ? ptrace_stop.part.0+0x5ec/0xa80 [ 232.530271][ T6609] ? do_raw_spin_lock+0x120/0x2a0 [ 232.535323][ T6609] ? rwlock_bug.part.0+0x90/0x90 [ 232.540285][ T6609] ? _raw_spin_lock_irq+0x41/0x50 [ 232.545347][ T6609] do_futex+0x266/0x300 [ 232.549534][ T6609] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 232.555456][ T6609] ? find_held_lock+0x2d/0x110 [pid 6621] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6621] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6622], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6622 [pid 6621] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6621] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6622 attached [pid 6622] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6622] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6622] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6621] <... futex resumed>) = 0 [pid 6621] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6621] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6622] <... futex resumed>) = 1 [pid 6622] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8) = 0 [pid 6622] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6621] <... futex resumed>) = 0 [pid 6621] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6621] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6622] <... futex resumed>) = 1 [pid 6622] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28) = 0 [pid 6622] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6621] <... futex resumed>) = 0 [pid 6622] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6621] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6622] <... setsockopt resumed>) = 0 [pid 6621] <... futex resumed>) = 0 [pid 6622] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6621] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6622] <... futex resumed>) = 0 [pid 6621] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6622] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6621] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6621] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6622] <... sendto resumed>) = 1 [pid 6622] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6621] <... futex resumed>) = 0 [pid 6621] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6621] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6622] <... futex resumed>) = 1 [pid 6622] sendto(3, "\x01", 1, 0, NULL, 0) = 1 [pid 6622] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6621] <... futex resumed>) = 0 [pid 6621] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6621] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6622] <... futex resumed>) = 1 [ 232.560269][ T6609] __x64_sys_futex+0x1b0/0x4a0 [ 232.565082][ T6609] ? do_futex+0x300/0x300 [ 232.569437][ T6609] ? _raw_spin_unlock_irq+0x1f/0x40 [ 232.574666][ T6609] ? lockdep_hardirqs_on+0x79/0x100 [ 232.579895][ T6609] ? _raw_spin_unlock_irq+0x2a/0x40 [ 232.585123][ T6609] ? ptrace_notify+0xfa/0x140 [ 232.589834][ T6609] do_syscall_64+0x35/0xb0 [ 232.594274][ T6609] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 232.600197][ T6609] RIP: 0033:0x7fc128117db9 [pid 6622] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 6622] write(4, "5", 1) = 1 [pid 6622] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6622] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6621] <... futex resumed>) = 0 [pid 6622] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6621] exit_group(0 [pid 6622] <... futex resumed>) = ? [pid 6621] <... exit_group resumed>) = ? [pid 6622] +++ exited with 0 +++ [pid 6621] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6621, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6623 ./strace-static-x86_64: Process 6623 attached [pid 6623] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6623] setpgid(0, 0) = 0 [pid 6623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6623] write(3, "1000", 4) = 4 [pid 6623] close(3) = 0 [pid 6623] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6623] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6623] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6623] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6624], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6624 [pid 6623] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 232.604635][ T6609] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 232.624274][ T6609] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 232.632725][ T6609] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 232.640729][ T6609] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 232.648726][ T6609] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [pid 6623] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6624 attached [pid 6624] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6624] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6624] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6623] <... futex resumed>) = 0 [pid 6623] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6623] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6624] <... futex resumed>) = 1 [pid 6624] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8) = 0 [pid 6618] <... write resumed>) = 4 [pid 6616] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6613] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6612] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6618] close(3) = 0 [pid 6616] <... setsockopt resumed>) = 0 [pid 6624] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6618] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6617] <... sendto resumed>) = 1 [pid 6616] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6609] <... futex resumed>) = ? [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6624] <... futex resumed>) = 1 [pid 6623] <... futex resumed>) = 0 [pid 6618] <... futex resumed>) = 0 [pid 6617] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6616] <... futex resumed>) = 1 [pid 6613] <... futex resumed>) = 0 [pid 6624] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6623] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6618] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6617] <... futex resumed>) = 1 [pid 6616] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6613] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6612] <... futex resumed>) = 0 [pid 6624] <... setsockopt resumed>) = 0 [pid 6623] <... futex resumed>) = 0 [pid 6618] <... mmap resumed>) = 0x7fc1280a9000 [pid 6617] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6613] <... futex resumed>) = 0 [pid 6612] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6609] +++ exited with 0 +++ [pid 6607] +++ exited with 0 +++ [pid 3614] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6625 [pid 6624] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6623] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6618] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6617] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6616] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6613] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6612] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6607, si_uid=0, si_status=0, si_utime=0, si_stime=23} --- [pid 6624] <... futex resumed>) = 0 [pid 6623] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6618] <... mprotect resumed>) = 0 [pid 6617] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6624] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6623] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6624] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6623] <... futex resumed>) = 0 [pid 6612] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6617] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6624] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6623] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6618] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6617] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6616] <... sendto resumed>) = 1 [pid 6624] <... setsockopt resumed>) = 0 [pid 6617] <... futex resumed>) = 1 [pid 6612] <... futex resumed>) = 0 [pid 6616] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6624] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6618] <... clone resumed>, parent_tid=[6626], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6626 [pid 6617] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6616] <... futex resumed>) = 1 [pid 6613] <... futex resumed>) = 0 [pid 6612] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6624] <... futex resumed>) = 1 [pid 6623] <... futex resumed>) = 0 [pid 6618] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6617] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6616] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6613] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6612] <... futex resumed>) = 0 [pid 6624] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6623] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6618] <... futex resumed>) = 0 [pid 6617] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6613] <... futex resumed>) = 0 [pid 6612] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6626 attached ./strace-static-x86_64: Process 6625 attached [pid 6624] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6623] <... futex resumed>) = 0 [pid 6618] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6617] <... openat resumed>) = 4 [pid 6616] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6613] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6626] set_robust_list(0x7fc1280c99e0, 24 [pid 6625] set_robust_list(0x5555564f35e0, 24 [pid 6624] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6623] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6617] write(4, "5", 1 [pid 6616] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6626] <... set_robust_list resumed>) = 0 [pid 6625] <... set_robust_list resumed>) = 0 [pid 6617] <... write resumed>) = 1 [pid 6616] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6625] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6617] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6616] <... futex resumed>) = 1 [pid 6613] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6627 [pid 6626] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6625] <... prctl resumed>) = 0 [pid 6624] <... sendto resumed>) = 1 [pid 6617] <... setsockopt resumed>) = 0 [pid 6616] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6613] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6627 attached [pid 6626] <... socket resumed>) = 3 [ 232.656725][ T6609] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 232.664720][ T6609] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 232.672737][ T6609] [pid 6625] setpgid(0, 0 [pid 6624] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6617] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6613] <... futex resumed>) = 0 [pid 6627] set_robust_list(0x5555564f35e0, 24 [pid 6626] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6625] <... setpgid resumed>) = 0 [pid 6624] <... futex resumed>) = 1 [pid 6623] <... futex resumed>) = 0 [pid 6616] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6613] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6627] <... set_robust_list resumed>) = 0 [pid 6626] <... futex resumed>) = 1 [pid 6625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6624] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6623] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6618] <... futex resumed>) = 0 [pid 6616] <... openat resumed>) = 4 [pid 6627] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6626] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6625] <... openat resumed>) = 3 [pid 6624] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6623] <... futex resumed>) = 0 [pid 6618] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6616] write(4, "5", 1 [pid 6627] <... prctl resumed>) = 0 [pid 6626] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6625] write(3, "1000", 4 [pid 6624] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6623] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6618] <... futex resumed>) = 0 [pid 6616] <... write resumed>) = 1 [pid 6627] setpgid(0, 0 [pid 6626] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6625] <... write resumed>) = 4 [pid 6624] <... sendto resumed>) = 1 [pid 6618] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6616] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6627] <... setpgid resumed>) = 0 [pid 6626] <... setsockopt resumed>) = 0 [pid 6625] close(3 [pid 6624] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6616] <... setsockopt resumed>) = 0 [pid 6627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [ 232.716446][ T6617] FAULT_INJECTION: forcing a failure. [ 232.716446][ T6617] name fail_futex, interval 1, probability 0, space 0, times 0 [ 232.747181][ T6617] CPU: 0 PID: 6617 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 232.747835][ T6616] FAULT_INJECTION: forcing a failure. [pid 6626] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6625] <... close resumed>) = 0 [pid 6624] <... futex resumed>) = 1 [pid 6623] <... futex resumed>) = 0 [pid 6616] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6627] <... openat resumed>) = 3 [pid 6626] <... futex resumed>) = 1 [pid 6625] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6618] <... futex resumed>) = 0 [pid 6612] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6627] write(3, "1000", 4 [pid 6625] <... futex resumed>) = 0 [pid 6612] exit_group(0 [pid 6627] <... write resumed>) = 4 [pid 6625] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6612] <... exit_group resumed>) = ? [pid 6627] close(3 [pid 6625] <... mmap resumed>) = 0x7fc1280a9000 [pid 6627] <... close resumed>) = 0 [pid 6625] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6627] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6625] <... mprotect resumed>) = 0 [pid 6627] <... futex resumed>) = 0 [pid 6625] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6627] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6625] <... clone resumed>, parent_tid=[6628], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6628 [pid 6627] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6625] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6627] <... mprotect resumed>) = 0 [pid 6625] <... futex resumed>) = 0 [ 232.747835][ T6616] name fail_futex, interval 1, probability 0, space 0, times 0 [ 232.757720][ T6617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 232.757737][ T6617] Call Trace: [ 232.757745][ T6617] [ 232.757754][ T6617] dump_stack_lvl+0xcd/0x134 [ 232.757786][ T6617] should_fail.cold+0x5/0xa [ 232.757814][ T6617] get_futex_key+0x5b2/0x1c50 [ 232.800564][ T6617] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 232.806555][ T6617] ? futex_setup_timer+0xf0/0xf0 [ 232.811502][ T6617] futex_wake+0xe4/0x490 [ 232.815749][ T6617] ? futex_wake_mark+0x1a0/0x1a0 [ 232.820686][ T6617] ? ptrace_stop.part.0+0x5ec/0xa80 [ 232.825889][ T6617] ? do_raw_spin_lock+0x120/0x2a0 [ 232.830917][ T6617] ? rwlock_bug.part.0+0x90/0x90 [ 232.835851][ T6617] ? _raw_spin_lock_irq+0x41/0x50 [ 232.840894][ T6617] do_futex+0x266/0x300 [ 232.845052][ T6617] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 232.850947][ T6617] ? find_held_lock+0x2d/0x110 [ 232.855724][ T6617] __x64_sys_futex+0x1b0/0x4a0 [ 232.860491][ T6617] ? do_futex+0x300/0x300 [ 232.864822][ T6617] ? _raw_spin_unlock_irq+0x1f/0x40 [ 232.870029][ T6617] ? lockdep_hardirqs_on+0x79/0x100 [ 232.875229][ T6617] ? _raw_spin_unlock_irq+0x2a/0x40 [ 232.880428][ T6617] ? ptrace_notify+0xfa/0x140 [ 232.885110][ T6617] do_syscall_64+0x35/0xb0 [ 232.889527][ T6617] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 232.895427][ T6617] RIP: 0033:0x7fc128117db9 [ 232.899861][ T6617] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 232.919476][ T6617] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 232.927890][ T6617] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 232.935872][ T6617] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 232.943846][ T6617] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 232.951838][ T6617] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 232.959813][ T6617] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [pid 6627] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6626] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6625] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6624] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6623] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6618] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6613] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) ./strace-static-x86_64: Process 6628 attached [pid 6626] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6624] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6623] <... futex resumed>) = 0 [pid 6618] <... futex resumed>) = 0 [pid 6613] exit_group(0 [pid 6628] set_robust_list(0x7fc1280c99e0, 24 [pid 6627] <... clone resumed>, parent_tid=[6629], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6629 [pid 6626] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6624] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6623] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6618] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6613] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 6629 attached [pid 6628] <... set_robust_list resumed>) = 0 [pid 6627] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6626] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6624] <... openat resumed>) = 4 [pid 6629] set_robust_list(0x7fc1280c99e0, 24 [pid 6628] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6627] <... futex resumed>) = 0 [pid 6626] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6624] write(4, "5", 1 [pid 6629] <... set_robust_list resumed>) = 0 [pid 6628] <... socket resumed>) = 3 [pid 6627] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6626] <... futex resumed>) = 1 [pid 6624] <... write resumed>) = 1 [pid 6618] <... futex resumed>) = 0 [pid 6629] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6628] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6626] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6624] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6618] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6629] <... socket resumed>) = 3 [pid 6628] <... futex resumed>) = 1 [pid 6626] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6625] <... futex resumed>) = 0 [pid 6624] <... setsockopt resumed>) = 0 [pid 6618] <... futex resumed>) = 0 [pid 6629] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6628] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6626] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6625] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6624] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6618] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6629] <... futex resumed>) = 1 [pid 6628] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6627] <... futex resumed>) = 0 [pid 6626] <... setsockopt resumed>) = 0 [pid 6625] <... futex resumed>) = 0 [pid 6624] <... futex resumed>) = 1 [pid 6623] <... futex resumed>) = 0 [pid 6629] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6628] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6627] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6626] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6625] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6624] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6623] exit_group(0 [pid 6629] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6628] <... setsockopt resumed>) = 0 [pid 6627] <... futex resumed>) = 0 [pid 6626] <... futex resumed>) = 1 [pid 6624] <... futex resumed>) = ? [pid 6623] <... exit_group resumed>) = ? [pid 6618] <... futex resumed>) = 0 [pid 6629] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6628] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6627] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6626] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6624] +++ exited with 0 +++ [pid 6629] <... setsockopt resumed>) = 0 [pid 6628] <... futex resumed>) = 1 [pid 6625] <... futex resumed>) = 0 [pid 6618] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6629] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [ 232.967812][ T6617] [ 233.004938][ T6616] CPU: 1 PID: 6616 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 233.015494][ T6616] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 233.025561][ T6616] Call Trace: [ 233.028851][ T6616] [ 233.031798][ T6616] dump_stack_lvl+0xcd/0x134 [ 233.036415][ T6616] should_fail.cold+0x5/0xa [ 233.042068][ T6616] get_futex_key+0x5b2/0x1c50 [ 233.046761][ T6616] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 233.052762][ T6616] ? futex_setup_timer+0xf0/0xf0 [ 233.057728][ T6616] futex_wake+0xe4/0x490 [ 233.061994][ T6616] ? futex_wake_mark+0x1a0/0x1a0 [ 233.066973][ T6616] ? ptrace_stop.part.0+0x5ec/0xa80 [ 233.072196][ T6616] ? do_raw_spin_lock+0x120/0x2a0 [ 233.077249][ T6616] ? rwlock_bug.part.0+0x90/0x90 [ 233.082206][ T6616] ? _raw_spin_lock_irq+0x41/0x50 [ 233.087256][ T6616] do_futex+0x266/0x300 [ 233.091436][ T6616] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 233.097346][ T6616] ? find_held_lock+0x2d/0x110 [ 233.102148][ T6616] __x64_sys_futex+0x1b0/0x4a0 [ 233.106940][ T6616] ? do_futex+0x300/0x300 [ 233.111286][ T6616] ? _raw_spin_unlock_irq+0x1f/0x40 [ 233.116511][ T6616] ? lockdep_hardirqs_on+0x79/0x100 [ 233.121756][ T6616] ? _raw_spin_unlock_irq+0x2a/0x40 [ 233.126993][ T6616] ? ptrace_notify+0xfa/0x140 [ 233.131713][ T6616] do_syscall_64+0x35/0xb0 [ 233.136160][ T6616] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 233.142113][ T6616] RIP: 0033:0x7fc128117db9 [ 233.146555][ T6616] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 233.166189][ T6616] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 233.174620][ T6616] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 233.182605][ T6616] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 233.190588][ T6616] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [pid 6628] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6626] <... futex resumed>) = 0 [pid 6625] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6623] +++ exited with 0 +++ [pid 6618] <... futex resumed>) = 1 [pid 6629] <... futex resumed>) = 1 [pid 6628] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6627] <... futex resumed>) = 0 [pid 6626] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6625] <... futex resumed>) = 0 [pid 6618] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6617] <... futex resumed>) = ? [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6623, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6629] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6628] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6627] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6625] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6629] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6628] <... setsockopt resumed>) = 0 [pid 6627] <... futex resumed>) = 0 [pid 6617] +++ exited with 0 +++ [pid 6626] <... sendto resumed>) = 1 [pid 6612] +++ exited with 0 +++ [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 6629] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6628] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6627] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6626] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6612, si_uid=0, si_status=0, si_utime=0, si_stime=24} --- [pid 6629] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6628] <... futex resumed>) = 1 [pid 6626] <... futex resumed>) = 1 [pid 6625] <... futex resumed>) = 0 [pid 6618] <... futex resumed>) = 0 [pid 6629] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6628] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6626] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6625] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6618] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6629] <... futex resumed>) = 1 [pid 6628] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6627] <... futex resumed>) = 0 [pid 6626] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6625] <... futex resumed>) = 0 [pid 6618] <... futex resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6629] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6628] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6627] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6626] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6625] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6618] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6629] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6628] <... setsockopt resumed>) = 0 [pid 6627] <... futex resumed>) = 0 [pid 6626] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6629] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6628] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6627] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6626] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3615] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6630 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6630 attached [pid 6629] <... setsockopt resumed>) = 0 [pid 6628] <... futex resumed>) = 1 [pid 6626] <... futex resumed>) = 1 [pid 6625] <... futex resumed>) = 0 [pid 6618] <... futex resumed>) = 0 [pid 6630] set_robust_list(0x5555564f35e0, 24 [pid 6629] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6628] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6626] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6625] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6618] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6631 ./strace-static-x86_64: Process 6631 attached [pid 6630] <... set_robust_list resumed>) = 0 [pid 6629] <... futex resumed>) = 1 [pid 6628] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6627] <... futex resumed>) = 0 [pid 6626] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6625] <... futex resumed>) = 0 [pid 6618] <... futex resumed>) = 0 [pid 6631] set_robust_list(0x5555564f35e0, 24 [pid 6630] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6629] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6628] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6627] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6626] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6625] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6618] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6631] <... set_robust_list resumed>) = 0 [pid 6630] <... prctl resumed>) = 0 [pid 6629] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6628] <... sendto resumed>) = 1 [pid 6627] <... futex resumed>) = 0 [pid 6626] <... openat resumed>) = 4 [pid 6631] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6630] setpgid(0, 0 [pid 6629] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6628] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6627] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6626] write(4, "5", 1 [pid 6631] <... prctl resumed>) = 0 [pid 6630] <... setpgid resumed>) = 0 [pid 6629] <... sendto resumed>) = 1 [pid 6628] <... futex resumed>) = 1 [pid 6626] <... write resumed>) = 1 [pid 6625] <... futex resumed>) = 0 [ 233.198575][ T6616] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 233.206644][ T6616] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 233.214650][ T6616] [pid 6631] setpgid(0, 0 [pid 6630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6629] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6628] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6626] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6625] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6631] <... setpgid resumed>) = 0 [pid 6630] <... openat resumed>) = 3 [pid 6629] <... futex resumed>) = 1 [pid 6628] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6627] <... futex resumed>) = 0 [pid 6626] <... setsockopt resumed>) = 0 [pid 6625] <... futex resumed>) = 0 [pid 6631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6630] write(3, "1000", 4 [pid 6629] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6628] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6627] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6626] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6625] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6631] <... openat resumed>) = 3 [pid 6630] <... write resumed>) = 4 [pid 6629] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6628] <... sendto resumed>) = 1 [pid 6627] <... futex resumed>) = 0 [pid 6629] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6628] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6627] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6629] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6628] <... futex resumed>) = 1 [pid 6625] <... futex resumed>) = 0 [pid 6629] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6628] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6625] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6629] <... futex resumed>) = 1 [pid 6628] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6627] <... futex resumed>) = 0 [pid 6625] <... futex resumed>) = 0 [pid 6629] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6628] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6627] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6625] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6629] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6628] <... openat resumed>) = 4 [pid 6627] <... futex resumed>) = 0 [pid 6629] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6628] write(4, "5", 1 [pid 6627] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6629] <... openat resumed>) = 4 [pid 6628] <... write resumed>) = 1 [pid 6631] write(3, "1000", 4 [pid 6630] close(3 [pid 6629] write(4, "5", 1 [pid 6628] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6631] <... write resumed>) = 4 [pid 6630] <... close resumed>) = 0 [pid 6629] <... write resumed>) = 1 [pid 6628] <... setsockopt resumed>) = 0 [pid 6631] close(3 [pid 6630] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6629] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6628] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6631] <... close resumed>) = 0 [pid 6630] <... futex resumed>) = 0 [pid 6629] <... setsockopt resumed>) = 0 [pid 6628] <... futex resumed>) = 1 [pid 6625] <... futex resumed>) = 0 [pid 6631] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6630] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6629] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6628] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6625] exit_group(0 [pid 6631] <... futex resumed>) = 0 [pid 6630] <... mmap resumed>) = 0x7fc1280a9000 [pid 6628] <... futex resumed>) = ? [pid 6625] <... exit_group resumed>) = ? [pid 6628] +++ exited with 0 +++ [pid 6625] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6625, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6632 [ 233.272252][ T6626] FAULT_INJECTION: forcing a failure. [ 233.272252][ T6626] name fail_futex, interval 1, probability 0, space 0, times 0 [ 233.293455][ T6629] FAULT_INJECTION: forcing a failure. [ 233.293455][ T6629] name fail_futex, interval 1, probability 0, space 0, times 0 [ 233.304322][ T6626] CPU: 0 PID: 6626 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [pid 6627] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6627] exit_group(0) = ? [ 233.316761][ T6626] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 233.326844][ T6626] Call Trace: [ 233.330140][ T6626] [ 233.333093][ T6626] dump_stack_lvl+0xcd/0x134 [ 233.337725][ T6626] should_fail.cold+0x5/0xa [ 233.342256][ T6626] get_futex_key+0x5b2/0x1c50 [ 233.346958][ T6626] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 233.352968][ T6626] ? futex_setup_timer+0xf0/0xf0 [ 233.357938][ T6626] futex_wake+0xe4/0x490 [ 233.362202][ T6626] ? futex_wake_mark+0x1a0/0x1a0 [ 233.367153][ T6626] ? ptrace_stop.part.0+0x5ec/0xa80 [pid 6631] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6631] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6631] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6633], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6633 [pid 6631] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 233.372371][ T6626] ? do_raw_spin_lock+0x120/0x2a0 [ 233.377411][ T6626] ? rwlock_bug.part.0+0x90/0x90 [ 233.382387][ T6626] ? _raw_spin_lock_irq+0x41/0x50 [ 233.387437][ T6626] do_futex+0x266/0x300 [ 233.391618][ T6626] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 233.397534][ T6626] ? find_held_lock+0x2d/0x110 [ 233.402338][ T6626] __x64_sys_futex+0x1b0/0x4a0 [ 233.407136][ T6626] ? do_futex+0x300/0x300 [ 233.411483][ T6626] ? _raw_spin_unlock_irq+0x1f/0x40 [ 233.416717][ T6626] ? lockdep_hardirqs_on+0x79/0x100 [pid 6631] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6630] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6630] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6634], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6634 [pid 6630] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 233.421928][ T6626] ? _raw_spin_unlock_irq+0x2a/0x40 [ 233.427148][ T6626] ? ptrace_notify+0xfa/0x140 [ 233.431853][ T6626] do_syscall_64+0x35/0xb0 [ 233.436292][ T6626] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 233.442383][ T6626] RIP: 0033:0x7fc128117db9 [ 233.446812][ T6626] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 233.466440][ T6626] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 233.475151][ T6626] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 233.483150][ T6626] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 233.491143][ T6626] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 233.499156][ T6626] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 233.507154][ T6626] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 233.515169][ T6626] [ 233.518201][ T6629] CPU: 1 PID: 6629 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 233.528719][ T6629] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 233.538774][ T6629] Call Trace: [ 233.542052][ T6629] [ 233.544984][ T6629] dump_stack_lvl+0xcd/0x134 [ 233.549585][ T6629] should_fail.cold+0x5/0xa [ 233.554095][ T6629] get_futex_key+0x5b2/0x1c50 [ 233.558780][ T6629] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 233.564860][ T6629] ? futex_setup_timer+0xf0/0xf0 [ 233.569808][ T6629] futex_wake+0xe4/0x490 [ 233.574056][ T6629] ? futex_wake_mark+0x1a0/0x1a0 [ 233.578995][ T6629] ? ptrace_stop.part.0+0x5ec/0xa80 [ 233.584199][ T6629] ? do_raw_spin_lock+0x120/0x2a0 [ 233.589226][ T6629] ? rwlock_bug.part.0+0x90/0x90 [ 233.594184][ T6629] ? _raw_spin_lock_irq+0x41/0x50 [ 233.599216][ T6629] do_futex+0x266/0x300 [ 233.603377][ T6629] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 233.609273][ T6629] ? find_held_lock+0x2d/0x110 [ 233.614049][ T6629] __x64_sys_futex+0x1b0/0x4a0 [ 233.618827][ T6629] ? do_futex+0x300/0x300 [ 233.623168][ T6629] ? _raw_spin_unlock_irq+0x1f/0x40 [ 233.628375][ T6629] ? lockdep_hardirqs_on+0x79/0x100 [ 233.633576][ T6629] ? _raw_spin_unlock_irq+0x2a/0x40 [ 233.639645][ T6629] ? ptrace_notify+0xfa/0x140 [ 233.644413][ T6629] do_syscall_64+0x35/0xb0 [ 233.648831][ T6629] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 233.654731][ T6629] RIP: 0033:0x7fc128117db9 [ 233.659147][ T6629] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 233.678760][ T6629] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 233.687179][ T6629] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 233.695240][ T6629] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 233.703209][ T6629] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 233.711191][ T6629] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [pid 6630] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6631] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6631] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6631] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc128088000 [pid 6631] mprotect(0x7fc128089000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6631] clone(child_stack=0x7fc1280a83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6635], tls=0x7fc1280a8700, child_tidptr=0x7fc1280a89d0) = 6635 [pid 6631] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6631] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6635 attached [pid 6635] set_robust_list(0x7fc1280a89e0, 24) = 0 [pid 6635] setsockopt(-1, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8) = -1 EBADF (Bad file descriptor) [pid 6635] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6631] <... futex resumed>) = 0 [pid 6635] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6631] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6631] <... futex resumed>) = 0 [pid 6635] setsockopt(-1, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6631] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6635] <... setsockopt resumed>) = -1 EBADF (Bad file descriptor) [pid 6635] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6631] <... futex resumed>) = 0 [pid 6635] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6631] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6631] <... futex resumed>) = 0 [pid 6635] setsockopt(-1, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6631] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6635] <... setsockopt resumed>) = -1 EBADF (Bad file descriptor) [pid 6630] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6635] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6630] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6635] <... futex resumed>) = 1 [pid 6631] <... futex resumed>) = 0 [pid 6630] <... futex resumed>) = 0 [pid 6635] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6631] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6630] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6631] <... futex resumed>) = 0 [pid 6630] <... mmap resumed>) = 0x7fc128088000 [pid 6635] sendto(-1, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6631] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6630] mprotect(0x7fc128089000, 131072, PROT_READ|PROT_WRITE [pid 6635] <... sendto resumed>) = -1 EBADF (Bad file descriptor) [pid 6630] <... mprotect resumed>) = 0 [pid 6635] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6630] clone(child_stack=0x7fc1280a83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6635] <... futex resumed>) = 1 [pid 6631] <... futex resumed>) = 0 [pid 6635] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6631] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6630] <... clone resumed>, parent_tid=[6636], tls=0x7fc1280a8700, child_tidptr=0x7fc1280a89d0) = 6636 [pid 6635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6631] <... futex resumed>) = 0 [pid 6630] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6636 attached [pid 6635] sendto(-1, "\x01", 1, 0, NULL, 0 [pid 6631] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6630] <... futex resumed>) = 0 [pid 6636] set_robust_list(0x7fc1280a89e0, 24 [pid 6635] <... sendto resumed>) = -1 EBADF (Bad file descriptor) [pid 6630] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6636] <... set_robust_list resumed>) = 0 [pid 6635] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6636] setsockopt(-1, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6635] <... futex resumed>) = 1 [pid 6631] <... futex resumed>) = 0 [pid 6636] <... setsockopt resumed>) = -1 EBADF (Bad file descriptor) [pid 6635] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6631] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6636] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6631] <... futex resumed>) = 0 [pid 6636] <... futex resumed>) = 1 [pid 6635] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6631] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6630] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6634 attached ./strace-static-x86_64: Process 6633 attached ./strace-static-x86_64: Process 6632 attached [pid 6636] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6635] <... openat resumed>) = 3 [pid 6631] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6630] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6618] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6636] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6635] write(3, "5", 1 [pid 6634] set_robust_list(0x7fc1280c99e0, 24 [pid 6633] set_robust_list(0x7fc1280c99e0, 24 [pid 6632] set_robust_list(0x5555564f35e0, 24 [pid 6630] <... futex resumed>) = 0 [pid 6618] exit_group(0 [pid 6636] setsockopt(-1, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6635] <... write resumed>) = 1 [pid 6634] <... set_robust_list resumed>) = 0 [pid 6633] <... set_robust_list resumed>) = 0 [pid 6632] <... set_robust_list resumed>) = 0 [pid 6630] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6618] <... exit_group resumed>) = ? [pid 6636] <... setsockopt resumed>) = -1 EBADF (Bad file descriptor) [pid 6635] setsockopt(-1, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6634] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6633] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6632] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6636] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6635] <... setsockopt resumed>) = -1 EBADF (Bad file descriptor) [pid 6634] <... socket resumed>) = 3 [pid 6633] <... socket resumed>) = 4 [pid 6632] <... prctl resumed>) = 0 [pid 6636] <... futex resumed>) = 1 [pid 6635] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6634] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6633] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6632] setpgid(0, 0 [pid 6630] <... futex resumed>) = 0 [pid 6636] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6635] <... futex resumed>) = 0 [pid 6634] <... futex resumed>) = 0 [pid 6633] <... futex resumed>) = 0 [pid 6632] <... setpgid resumed>) = 0 [pid 6631] exit_group(0 [pid 6630] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6634] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6631] <... exit_group resumed>) = ? [pid 6630] <... futex resumed>) = 0 [pid 6634] <... setsockopt resumed>) = -1 EACCES (Permission denied) [pid 6633] +++ exited with 0 +++ [pid 6632] <... openat resumed>) = 3 [pid 6630] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6634] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6632] write(3, "1000", 4 [pid 6630] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6634] <... futex resumed>) = 0 [pid 6632] <... write resumed>) = 4 [pid 6630] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6634] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6632] close(3 [pid 6630] <... futex resumed>) = 0 [pid 6632] <... close resumed>) = 0 [pid 6630] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6634] <... sendto resumed>) = 1 [pid 6632] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6634] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6632] <... futex resumed>) = 0 [pid 6634] <... futex resumed>) = 1 [pid 6632] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6630] <... futex resumed>) = 0 [pid 6634] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6632] <... mmap resumed>) = 0x7fc1280a9000 [pid 6630] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6634] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6632] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6630] <... futex resumed>) = 0 [ 233.719179][ T6629] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 233.727252][ T6629] [ 233.760181][ T6635] FAULT_INJECTION: forcing a failure. [ 233.760181][ T6635] name fail_futex, interval 1, probability 0, space 0, times 0 [pid 6634] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6632] <... mprotect resumed>) = 0 [pid 6630] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6632] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6637], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6637 [pid 6632] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6632] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6637 attached [pid 6637] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6637] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6637] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6632] <... futex resumed>) = 0 [pid 6637] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6632] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6637] <... setsockopt resumed>) = 0 [pid 6632] <... futex resumed>) = 0 [pid 6637] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6632] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6637] <... futex resumed>) = 0 [pid 6632] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6637] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6632] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6637] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6632] <... futex resumed>) = 0 [pid 6637] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6632] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6637] <... setsockopt resumed>) = 0 [pid 6637] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6632] <... futex resumed>) = 0 [pid 6637] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6632] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6637] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 233.788237][ T6635] CPU: 0 PID: 6635 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 233.798801][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 233.808889][ T6635] Call Trace: [ 233.812201][ T6635] [ 233.815156][ T6635] dump_stack_lvl+0xcd/0x134 [ 233.819788][ T6635] should_fail.cold+0x5/0xa [ 233.824328][ T6635] get_futex_key+0x11d2/0x1c50 [ 233.829125][ T6635] ? futex_setup_timer+0xf0/0xf0 [ 233.834103][ T6635] futex_wake+0xe4/0x490 [pid 6632] <... futex resumed>) = 0 [pid 6637] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6632] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6637] <... setsockopt resumed>) = 0 [pid 6637] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6632] <... futex resumed>) = 0 [pid 6637] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6632] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6637] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6632] <... futex resumed>) = 0 [pid 6637] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [ 233.838391][ T6635] ? futex_wake_mark+0x1a0/0x1a0 [ 233.843366][ T6635] ? find_held_lock+0x2d/0x110 [ 233.848167][ T6635] do_futex+0x266/0x300 [ 233.852352][ T6635] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 233.858288][ T6635] mm_release+0x235/0x2c0 [ 233.862655][ T6635] do_exit+0x8a0/0x29d0 [ 233.866841][ T6635] ? find_held_lock+0x2d/0x110 [ 233.871665][ T6635] ? mm_update_next_owner+0x7a0/0x7a0 [ 233.877069][ T6635] ? lock_downgrade+0x6e0/0x6e0 [ 233.881954][ T6635] do_group_exit+0xd2/0x2f0 [ 233.886493][ T6635] get_signal+0x2542/0x2600 [ 233.891030][ T6635] ? exit_signals+0x8b0/0x8b0 [ 233.895732][ T6635] ? userns_owner+0x40/0x40 [ 233.900266][ T6635] ? __task_pid_nr_ns+0x168/0x4b0 [ 233.905323][ T6635] ? lock_downgrade+0x6e0/0x6e0 [ 233.910206][ T6635] arch_do_signal_or_restart+0x82/0x2300 [ 233.915873][ T6635] ? from_kuid_munged+0xa2/0x130 [ 233.920843][ T6635] ? find_held_lock+0x2d/0x110 [ 233.925635][ T6635] ? get_sigframe_size+0x10/0x10 [ 233.930609][ T6635] ? ptrace_notify+0xfa/0x140 [ 233.935319][ T6635] ? lock_downgrade+0x6e0/0x6e0 [ 233.940196][ T6635] ? send_sig+0xfe/0x160 [ 233.944463][ T6635] ? send_sig_info+0x140/0x140 [ 233.949251][ T6635] ? exit_to_user_mode_prepare+0x137/0x250 [ 233.955085][ T6635] exit_to_user_mode_prepare+0x15f/0x250 [ 233.960749][ T6635] syscall_exit_to_user_mode+0x19/0x50 [ 233.966236][ T6635] do_syscall_64+0x42/0xb0 [ 233.970677][ T6635] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 233.976599][ T6635] RIP: 0033:0x7fc128117db9 [ 233.981074][ T6635] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 234.000708][ T6635] RSP: 002b:00007fc1280a82e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 234.009150][ T6635] RAX: ffffffffffffffda RBX: 00007fc1281a04b0 RCX: 00007fc128117db9 [ 234.017151][ T6635] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fc1281a04b8 [ 234.025162][ T6635] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [pid 6632] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6637] <... sendto resumed>) = 1 [pid 6637] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6632] <... futex resumed>) = 0 [pid 6637] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6632] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6637] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6632] <... futex resumed>) = 0 [pid 6637] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6632] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6637] <... sendto resumed>) = 1 [pid 6637] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6632] <... futex resumed>) = 0 [pid 6637] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6632] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6637] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6632] <... futex resumed>) = 0 [pid 6637] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6632] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6637] <... openat resumed>) = 4 [pid 6637] write(4, "5", 1) = 1 [pid 6637] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6637] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6632] <... futex resumed>) = 0 [pid 6637] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6632] exit_group(0 [pid 6637] <... futex resumed>) = ? [pid 6632] <... exit_group resumed>) = ? [pid 6637] +++ exited with 0 +++ [pid 6632] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6632, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3614] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6638 ./strace-static-x86_64: Process 6638 attached [pid 6638] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6638] setpgid(0, 0) = 0 [pid 6638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6638] write(3, "1000", 4) = 4 [pid 6638] close(3) = 0 [pid 6638] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6638] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6638] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6638] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6639], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6639 [pid 6638] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6638] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6639 attached [pid 6639] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6639] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6639] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6638] <... futex resumed>) = 0 [pid 6639] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6638] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6638] <... futex resumed>) = 0 [pid 6639] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6638] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6639] <... setsockopt resumed>) = 0 [pid 6639] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6638] <... futex resumed>) = 0 [pid 6639] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6638] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6638] <... futex resumed>) = 0 [pid 6639] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6638] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6639] <... setsockopt resumed>) = 0 [pid 6639] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6638] <... futex resumed>) = 0 [pid 6639] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6638] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6638] <... futex resumed>) = 0 [pid 6639] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6638] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6639] <... setsockopt resumed>) = 0 [pid 6639] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6638] <... futex resumed>) = 0 [pid 6639] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6638] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6638] <... futex resumed>) = 0 [pid 6639] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6638] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6639] <... sendto resumed>) = 1 [pid 6639] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6638] <... futex resumed>) = 0 [pid 6639] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6638] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6638] <... futex resumed>) = 0 [pid 6639] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6638] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6639] <... sendto resumed>) = 1 [pid 6639] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6638] <... futex resumed>) = 0 [pid 6639] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6638] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6638] <... futex resumed>) = 0 [pid 6639] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6638] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6639] <... openat resumed>) = 4 [pid 6639] write(4, "5", 1) = 1 [pid 6639] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6639] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6638] <... futex resumed>) = 0 [pid 6639] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6638] exit_group(0 [pid 6639] <... futex resumed>) = ? [pid 6638] <... exit_group resumed>) = ? [pid 6639] +++ exited with 0 +++ [pid 6638] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6638, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6640 ./strace-static-x86_64: Process 6640 attached [pid 6640] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6640] setpgid(0, 0) = 0 [pid 6640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6640] write(3, "1000", 4) = 4 [pid 6640] close(3) = 0 [pid 6640] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6640] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6640] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6640] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6641], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6641 [pid 6640] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6640] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6641 attached [pid 6641] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6641] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6641] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6640] <... futex resumed>) = 0 [pid 6641] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6640] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6641] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6640] <... futex resumed>) = 0 [pid 6641] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6640] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6641] <... setsockopt resumed>) = 0 [pid 6641] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6640] <... futex resumed>) = 0 [pid 6641] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6640] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6641] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6640] <... futex resumed>) = 0 [pid 6641] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6640] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6641] <... setsockopt resumed>) = 0 [pid 6641] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6640] <... futex resumed>) = 0 [pid 6641] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6640] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6641] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6640] <... futex resumed>) = 0 [pid 6641] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6640] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6641] <... setsockopt resumed>) = 0 [pid 6641] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6640] <... futex resumed>) = 0 [pid 6641] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6640] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6641] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6640] <... futex resumed>) = 0 [pid 6641] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6640] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6641] <... sendto resumed>) = 1 [pid 6641] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6640] <... futex resumed>) = 0 [pid 6641] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6640] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6641] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6640] <... futex resumed>) = 0 [pid 6641] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6640] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6641] <... sendto resumed>) = 1 [pid 6641] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6640] <... futex resumed>) = 0 [pid 6641] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6640] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6641] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6640] <... futex resumed>) = 0 [pid 6641] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6640] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6641] <... openat resumed>) = 4 [pid 6641] write(4, "5", 1) = 1 [pid 6641] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6641] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6640] <... futex resumed>) = 0 [pid 6641] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6640] exit_group(0 [pid 6641] <... futex resumed>) = ? [pid 6640] <... exit_group resumed>) = ? [pid 6641] +++ exited with 0 +++ [pid 6640] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6640, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6642 ./strace-static-x86_64: Process 6642 attached [pid 6642] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6642] setpgid(0, 0) = 0 [pid 6642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6642] write(3, "1000", 4) = 4 [pid 6642] close(3) = 0 [pid 6642] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6642] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6642] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6642] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6643], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6643 [pid 6642] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6642] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6643 attached [pid 6643] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6643] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6643] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6642] <... futex resumed>) = 0 [pid 6643] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6642] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6643] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6642] <... futex resumed>) = 0 [pid 6643] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6642] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6643] <... setsockopt resumed>) = 0 [pid 6643] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6642] <... futex resumed>) = 0 [pid 6643] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6642] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6643] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6642] <... futex resumed>) = 0 [pid 6643] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6642] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6643] <... setsockopt resumed>) = 0 [pid 6643] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6642] <... futex resumed>) = 0 [pid 6643] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6642] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6643] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6642] <... futex resumed>) = 0 [pid 6643] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6642] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6643] <... setsockopt resumed>) = 0 [pid 6643] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6642] <... futex resumed>) = 0 [pid 6643] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6642] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6643] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6642] <... futex resumed>) = 0 [pid 6643] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6642] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6643] <... sendto resumed>) = 1 [pid 6634] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6643] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6634] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6643] <... futex resumed>) = 1 [pid 6642] <... futex resumed>) = 0 [pid 6634] <... futex resumed>) = 1 [pid 6630] <... futex resumed>) = 0 [pid 6643] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6642] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6634] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6630] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6643] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6642] <... futex resumed>) = 0 [pid 6634] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6630] <... futex resumed>) = 0 [pid 6643] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6642] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6634] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6630] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6643] <... sendto resumed>) = 1 [pid 6634] <... openat resumed>) = 4 [pid 6643] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6634] write(4, "5", 1 [pid 6643] <... futex resumed>) = 1 [pid 6642] <... futex resumed>) = 0 [pid 6634] <... write resumed>) = 1 [pid 6643] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6642] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6634] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6643] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6642] <... futex resumed>) = 0 [pid 6634] <... setsockopt resumed>) = -1 EACCES (Permission denied) [pid 6643] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6642] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6634] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6643] <... openat resumed>) = 4 [pid 6634] <... futex resumed>) = 1 [pid 6630] <... futex resumed>) = 0 [pid 6643] write(4, "5", 1 [pid 6634] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6630] exit_group(0 [pid 6643] <... write resumed>) = 1 [pid 6636] <... futex resumed>) = ? [pid 6634] <... futex resumed>) = ? [pid 6630] <... exit_group resumed>) = ? [ 234.033251][ T6635] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc1280a82f0 [ 234.041246][ T6635] R13: 00007fc1281a04b8 R14: 0100000000000000 R15: 0000000000000001 [ 234.049259][ T6635] [pid 6643] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6636] +++ exited with 0 +++ [pid 6643] <... setsockopt resumed>) = 0 [pid 6643] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6642] <... futex resumed>) = 0 [pid 6643] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6642] exit_group(0 [pid 6643] <... futex resumed>) = ? [pid 6642] <... exit_group resumed>) = ? [pid 6643] +++ exited with 0 +++ [pid 6642] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6642, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6616] <... futex resumed>) = ? [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6644 [pid 6616] +++ exited with 0 +++ [pid 6613] +++ exited with 0 +++ [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6613, si_uid=0, si_status=0, si_utime=0, si_stime=24} --- [pid 3610] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6644 attached , child_tidptr=0x5555564f35d0) = 6645 ./strace-static-x86_64: Process 6645 attached [pid 6645] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6645] setpgid(0, 0) = 0 [pid 6645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6645] write(3, "1000", 4) = 4 [pid 6645] close(3) = 0 [pid 6645] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6645] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6645] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6645] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6646], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6646 [pid 6645] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 234.088771][ T6634] FAULT_INJECTION: forcing a failure. [ 234.088771][ T6634] name fail_futex, interval 1, probability 0, space 0, times 0 [ 234.114398][ T6634] CPU: 0 PID: 6634 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 234.124961][ T6634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 234.135046][ T6634] Call Trace: [pid 6645] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6646 attached [pid 6646] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6646] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6646] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6645] <... futex resumed>) = 0 [pid 6646] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6645] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6646] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6645] <... futex resumed>) = 0 [pid 6646] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6645] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6646] <... setsockopt resumed>) = 0 [pid 6646] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [ 234.138352][ T6634] [ 234.141305][ T6634] dump_stack_lvl+0xcd/0x134 [ 234.145961][ T6634] should_fail.cold+0x5/0xa [ 234.150512][ T6634] get_futex_key+0x5b2/0x1c50 [ 234.155226][ T6634] ? __lock_acquire+0x163e/0x5660 [ 234.160279][ T6634] ? futex_setup_timer+0xf0/0xf0 [ 234.165260][ T6634] futex_wake+0xe4/0x490 [ 234.169535][ T6634] ? futex_wake_mark+0x1a0/0x1a0 [ 234.174511][ T6634] ? find_held_lock+0x2d/0x110 [ 234.180187][ T6634] do_futex+0x266/0x300 [ 234.184371][ T6634] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 234.190299][ T6634] mm_release+0x235/0x2c0 [ 234.194659][ T6634] do_exit+0x8a0/0x29d0 [ 234.198844][ T6634] ? find_held_lock+0x2d/0x110 [ 234.203732][ T6634] ? mm_update_next_owner+0x7a0/0x7a0 [ 234.209133][ T6634] ? lock_downgrade+0x6e0/0x6e0 [ 234.214028][ T6634] do_group_exit+0xd2/0x2f0 [ 234.218565][ T6634] get_signal+0x2542/0x2600 [ 234.223108][ T6634] ? exit_signals+0x8b0/0x8b0 [ 234.227816][ T6634] ? userns_owner+0x40/0x40 [ 234.232350][ T6634] ? __task_pid_nr_ns+0x168/0x4b0 [ 234.237403][ T6634] ? lock_downgrade+0x6e0/0x6e0 [ 234.242284][ T6634] arch_do_signal_or_restart+0x82/0x2300 [ 234.247951][ T6634] ? from_kuid_munged+0xa2/0x130 [ 234.252923][ T6634] ? find_held_lock+0x2d/0x110 [ 234.257719][ T6634] ? get_sigframe_size+0x10/0x10 [ 234.262691][ T6634] ? ptrace_notify+0xfa/0x140 [ 234.267398][ T6634] ? lock_downgrade+0x6e0/0x6e0 [ 234.272278][ T6634] ? send_sig+0xfe/0x160 [ 234.276552][ T6634] ? send_sig_info+0x140/0x140 [ 234.281434][ T6634] ? exit_to_user_mode_prepare+0x137/0x250 [ 234.287276][ T6634] exit_to_user_mode_prepare+0x15f/0x250 [ 234.292938][ T6634] syscall_exit_to_user_mode+0x19/0x50 [ 234.298428][ T6634] do_syscall_64+0x42/0xb0 [ 234.302882][ T6634] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 234.308808][ T6634] RIP: 0033:0x7fc128117db9 [ 234.313247][ T6634] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [pid 6645] <... futex resumed>) = 0 [pid 6646] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6645] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6646] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6645] <... futex resumed>) = 0 [pid 6646] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6645] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6646] <... setsockopt resumed>) = 0 [pid 6646] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6645] <... futex resumed>) = 0 [pid 6646] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6645] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6646] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6645] <... futex resumed>) = 0 [pid 6646] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6645] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6646] <... setsockopt resumed>) = 0 [pid 6646] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6645] <... futex resumed>) = 0 [pid 6646] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6645] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6646] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6645] <... futex resumed>) = 0 [pid 6646] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6645] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6646] <... sendto resumed>) = 1 [pid 6646] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6645] <... futex resumed>) = 0 [pid 6646] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6645] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6646] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6645] <... futex resumed>) = 0 [pid 6646] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6645] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6646] <... sendto resumed>) = 1 [pid 6646] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6645] <... futex resumed>) = 0 [pid 6646] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6645] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6646] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6645] <... futex resumed>) = 0 [pid 6646] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6645] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6646] <... openat resumed>) = 4 [pid 6646] write(4, "5", 1) = 1 [pid 6646] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6646] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6645] <... futex resumed>) = 0 [pid 6646] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6645] exit_group(0 [pid 6646] <... futex resumed>) = ? [pid 6645] <... exit_group resumed>) = ? [pid 6646] +++ exited with 0 +++ [pid 6645] +++ exited with 0 +++ [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6645, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6647 ./strace-static-x86_64: Process 6647 attached [pid 6647] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6647] setpgid(0, 0) = 0 [pid 6647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6647] write(3, "1000", 4) = 4 [pid 6647] close(3) = 0 [pid 6647] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6647] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6647] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6647] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6648], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6648 [pid 6647] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6647] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6648 attached [pid 6648] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6648] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6648] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6647] <... futex resumed>) = 0 [pid 6648] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6647] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6648] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6647] <... futex resumed>) = 0 [pid 6648] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6647] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6648] <... setsockopt resumed>) = 0 [pid 6648] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6647] <... futex resumed>) = 0 [pid 6648] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6647] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6648] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6647] <... futex resumed>) = 0 [pid 6648] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6647] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6648] <... setsockopt resumed>) = 0 [pid 6648] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6647] <... futex resumed>) = 0 [pid 6648] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6647] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6648] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6647] <... futex resumed>) = 0 [pid 6648] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6647] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6648] <... setsockopt resumed>) = 0 [pid 6648] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6647] <... futex resumed>) = 0 [pid 6648] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6647] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6648] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6647] <... futex resumed>) = 0 [pid 6648] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6647] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6648] <... sendto resumed>) = 1 [pid 6648] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6647] <... futex resumed>) = 0 [pid 6648] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6647] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6648] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6647] <... futex resumed>) = 0 [pid 6648] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6647] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6648] <... sendto resumed>) = 1 [pid 6648] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6647] <... futex resumed>) = 0 [pid 6648] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6647] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6648] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6647] <... futex resumed>) = 0 [pid 6648] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6647] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6648] <... openat resumed>) = 4 [pid 6648] write(4, "5", 1) = 1 [pid 6648] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6648] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6647] <... futex resumed>) = 0 [pid 6648] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6647] exit_group(0 [pid 6648] <... futex resumed>) = ? [pid 6647] <... exit_group resumed>) = ? [pid 6648] +++ exited with 0 +++ [pid 6647] +++ exited with 0 +++ [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6647, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6629] <... futex resumed>) = ? [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6649 [pid 6629] +++ exited with 0 +++ [pid 6627] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6627, si_uid=0, si_status=0, si_utime=0, si_stime=30} --- [pid 3607] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6650 ./strace-static-x86_64: Process 6649 attached [pid 6649] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6649] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6650 attached ) = 0 [pid 6650] set_robust_list(0x5555564f35e0, 24 [pid 6649] setpgid(0, 0 [pid 6650] <... set_robust_list resumed>) = 0 [pid 6649] <... setpgid resumed>) = 0 [pid 6650] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6650] <... prctl resumed>) = 0 [pid 6649] <... openat resumed>) = 3 [pid 6650] setpgid(0, 0 [pid 6649] write(3, "1000", 4 [pid 6650] <... setpgid resumed>) = 0 [pid 6649] <... write resumed>) = 4 [pid 6650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6649] close(3 [pid 6650] <... openat resumed>) = 3 [pid 6649] <... close resumed>) = 0 [pid 6650] write(3, "1000", 4 [pid 6649] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6650] <... write resumed>) = 4 [pid 6649] <... futex resumed>) = 0 [pid 6650] close(3 [pid 6649] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6650] <... close resumed>) = 0 [pid 6649] <... mmap resumed>) = 0x7fc1280a9000 [pid 6650] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6649] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6650] <... futex resumed>) = 0 [pid 6649] <... mprotect resumed>) = 0 [pid 6650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6649] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6650] <... mmap resumed>) = 0x7fc1280a9000 [pid 6650] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6649] <... clone resumed>, parent_tid=[6651], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6651 [pid 6650] <... mprotect resumed>) = 0 [pid 6649] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6650] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6649] <... futex resumed>) = 0 [pid 6649] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6650] <... clone resumed>, parent_tid=[6652], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6652 [pid 6650] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6650] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6651 attached [pid 6651] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6651] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP./strace-static-x86_64: Process 6652 attached ) = 3 [pid 6652] set_robust_list(0x7fc1280c99e0, 24 [pid 6651] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6652] <... set_robust_list resumed>) = 0 [pid 6651] <... futex resumed>) = 1 [pid 6649] <... futex resumed>) = 0 [pid 6652] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6651] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6649] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6652] <... socket resumed>) = 3 [pid 6651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6649] <... futex resumed>) = 0 [pid 6652] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6651] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6649] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6652] <... futex resumed>) = 1 [pid 6651] <... setsockopt resumed>) = 0 [pid 6650] <... futex resumed>) = 0 [pid 6652] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6651] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6650] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6652] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6651] <... futex resumed>) = 1 [pid 6650] <... futex resumed>) = 0 [pid 6649] <... futex resumed>) = 0 [pid 6652] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6651] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6650] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6649] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6652] <... setsockopt resumed>) = 0 [pid 6651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6649] <... futex resumed>) = 0 [pid 6652] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6651] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6649] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6652] <... futex resumed>) = 1 [pid 6651] <... setsockopt resumed>) = 0 [pid 6650] <... futex resumed>) = 0 [pid 6652] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6651] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6650] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6652] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6651] <... futex resumed>) = 1 [pid 6650] <... futex resumed>) = 0 [pid 6649] <... futex resumed>) = 0 [pid 6652] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6651] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6650] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6649] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6652] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6649] <... futex resumed>) = 0 [pid 6652] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6651] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6649] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6652] <... futex resumed>) = 1 [pid 6651] <... setsockopt resumed>) = 0 [pid 6650] <... futex resumed>) = 0 [pid 6652] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6651] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6650] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6652] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6651] <... futex resumed>) = 1 [pid 6650] <... futex resumed>) = 0 [pid 6649] <... futex resumed>) = 0 [pid 6652] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6651] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6650] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6649] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6652] <... setsockopt resumed>) = 0 [pid 6651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6649] <... futex resumed>) = 0 [pid 6652] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6651] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6649] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6652] <... futex resumed>) = 1 [pid 6651] <... sendto resumed>) = 1 [pid 6650] <... futex resumed>) = 0 [pid 6652] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6651] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6650] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6652] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6651] <... futex resumed>) = 1 [pid 6650] <... futex resumed>) = 0 [pid 6649] <... futex resumed>) = 0 [pid 6652] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6651] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6650] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6649] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6652] <... sendto resumed>) = 1 [pid 6651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6649] <... futex resumed>) = 0 [pid 6652] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6651] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6649] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6652] <... futex resumed>) = 1 [pid 6651] <... sendto resumed>) = 1 [pid 6650] <... futex resumed>) = 0 [pid 6652] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6651] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6650] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6652] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6651] <... futex resumed>) = 1 [pid 6650] <... futex resumed>) = 0 [pid 6649] <... futex resumed>) = 0 [pid 6644] set_robust_list(0x5555564f35e0, 24 [pid 6652] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6651] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6650] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6649] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6644] <... set_robust_list resumed>) = 0 [pid 6652] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6649] <... futex resumed>) = 0 [pid 6644] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6652] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6651] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6649] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6644] <... prctl resumed>) = 0 [pid 6652] <... futex resumed>) = 1 [pid 6651] <... openat resumed>) = 4 [pid 6650] <... futex resumed>) = 0 [pid 6644] setpgid(0, 0 [pid 6652] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6651] write(4, "5", 1 [pid 6650] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6644] <... setpgid resumed>) = 0 [pid 6652] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6651] <... write resumed>) = 1 [pid 6650] <... futex resumed>) = 0 [pid 6644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6652] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6651] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6650] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6652] <... openat resumed>) = 4 [pid 6651] <... setsockopt resumed>) = 0 [pid 6644] <... openat resumed>) = 3 [pid 6652] write(4, "5", 1 [pid 6651] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6644] write(3, "1000", 4 [pid 6652] <... write resumed>) = 1 [pid 6651] <... futex resumed>) = 1 [pid 6649] <... futex resumed>) = 0 [pid 6644] <... write resumed>) = 4 [pid 6652] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6651] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6649] exit_group(0 [pid 6644] close(3 [pid 6652] <... setsockopt resumed>) = 0 [pid 6651] <... futex resumed>) = ? [pid 6649] <... exit_group resumed>) = ? [pid 6644] <... close resumed>) = 0 [ 234.332897][ T6634] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 234.341995][ T6634] RAX: fffffffffffffe00 RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 234.350009][ T6634] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fc1281a04a8 [ 234.358012][ T6634] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 234.366009][ T6634] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 234.374004][ T6634] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 234.382027][ T6634] [pid 6652] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6651] +++ exited with 0 +++ [pid 6649] +++ exited with 0 +++ [pid 6644] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6635] +++ exited with 0 +++ [pid 6634] +++ exited with 0 +++ [pid 6631] +++ exited with 0 +++ [pid 6630] +++ exited with 0 +++ [pid 6626] <... futex resumed>) = ? [pid 6644] <... futex resumed>) = 0 [pid 6626] +++ exited with 0 +++ [pid 6618] +++ exited with 0 +++ [pid 6644] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6644] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6644] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6653], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6653 [pid 6644] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6644] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6630, si_uid=0, si_status=0, si_utime=0, si_stime=30} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6654 [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6631, si_uid=0, si_status=0, si_utime=0, si_stime=29} --- [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6655 ./strace-static-x86_64: Process 6653 attached [pid 6653] set_robust_list(0x7fc1280c99e0, 24./strace-static-x86_64: Process 6655 attached ./strace-static-x86_64: Process 6654 attached [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6649, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6618, si_uid=0, si_status=0, si_utime=0, si_stime=23} --- [pid 6653] <... set_robust_list resumed>) = 0 [pid 6653] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6653] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6644] <... futex resumed>) = 0 [pid 6644] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6644] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6653] <... futex resumed>) = 1 [pid 6653] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8) = 0 [pid 6653] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6644] <... futex resumed>) = 0 [pid 6653] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6644] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6653] <... setsockopt resumed>) = 0 [pid 6644] <... futex resumed>) = 0 [pid 6653] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6644] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6653] <... futex resumed>) = 0 [pid 6644] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6653] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6644] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6653] <... setsockopt resumed>) = 0 [pid 6644] <... futex resumed>) = 0 [pid 6653] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6644] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6653] <... futex resumed>) = 0 [pid 6644] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6653] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6644] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6653] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6644] <... futex resumed>) = 0 [pid 6653] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6644] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6653] <... sendto resumed>) = 1 [pid 6653] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6644] <... futex resumed>) = 0 [pid 6653] sendto(3, "\x01", 1, 0, NULL, 0 [ 234.420402][ T6652] FAULT_INJECTION: forcing a failure. [ 234.420402][ T6652] name fail_futex, interval 1, probability 0, space 0, times 0 [ 234.437737][ T6652] CPU: 1 PID: 6652 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 234.448291][ T6652] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 234.458377][ T6652] Call Trace: [ 234.461772][ T6652] [ 234.464723][ T6652] dump_stack_lvl+0xcd/0x134 [pid 6644] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6653] <... sendto resumed>) = 1 [pid 6644] <... futex resumed>) = 0 [pid 6653] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6644] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6653] <... futex resumed>) = 0 [pid 6644] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6653] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6644] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6653] <... openat resumed>) = 4 [pid 6644] <... futex resumed>) = 0 [pid 6653] write(4, "5", 1 [pid 6644] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6653] <... write resumed>) = 1 [pid 6653] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6653] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6644] <... futex resumed>) = 0 [pid 6653] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6644] exit_group(0 [pid 6653] <... futex resumed>) = ? [pid 6644] <... exit_group resumed>) = ? [pid 6653] +++ exited with 0 +++ [pid 6644] +++ exited with 0 +++ [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6644, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3614] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6656 ./strace-static-x86_64: Process 6656 attached [pid 6656] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6656] setpgid(0, 0) = 0 [pid 6656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6656] write(3, "1000", 4) = 4 [pid 6656] close(3) = 0 [pid 6656] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6656] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6656] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6656] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6657], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6657 [pid 6656] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6656] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6657 attached [pid 6657] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6657] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6657] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6656] <... futex resumed>) = 0 [ 234.469421][ T6652] should_fail.cold+0x5/0xa [ 234.473964][ T6652] get_futex_key+0x5b2/0x1c50 [ 234.478678][ T6652] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 234.484694][ T6652] ? futex_setup_timer+0xf0/0xf0 [ 234.489673][ T6652] futex_wake+0xe4/0x490 [ 234.493954][ T6652] ? futex_wake_mark+0x1a0/0x1a0 [ 234.498925][ T6652] ? ptrace_stop.part.0+0x5ec/0xa80 [ 234.504164][ T6652] ? do_raw_spin_lock+0x120/0x2a0 [ 234.509228][ T6652] ? rwlock_bug.part.0+0x90/0x90 [ 234.514206][ T6652] ? _raw_spin_lock_irq+0x41/0x50 [pid 6657] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6656] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6657] <... setsockopt resumed>) = 0 [pid 6656] <... futex resumed>) = 0 [pid 6657] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6656] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6657] <... futex resumed>) = 0 [pid 6656] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6657] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6656] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6657] <... setsockopt resumed>) = 0 [pid 6656] <... futex resumed>) = 0 [pid 6657] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6656] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6657] <... futex resumed>) = 0 [pid 6656] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6657] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6656] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6657] <... setsockopt resumed>) = 0 [pid 6656] <... futex resumed>) = 0 [pid 6657] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6656] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6657] <... futex resumed>) = 0 [pid 6656] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6657] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6656] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6657] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6656] <... futex resumed>) = 0 [pid 6657] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6656] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6657] <... sendto resumed>) = 1 [pid 6657] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6656] <... futex resumed>) = 0 [pid 6657] sendto(3, "\x01", 1, 0, NULL, 0 [ 234.519354][ T6652] do_futex+0x266/0x300 [ 234.523542][ T6652] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 234.529467][ T6652] ? find_held_lock+0x2d/0x110 [ 234.534273][ T6652] __x64_sys_futex+0x1b0/0x4a0 [ 234.539075][ T6652] ? do_futex+0x300/0x300 [ 234.543434][ T6652] ? _raw_spin_unlock_irq+0x1f/0x40 [ 234.548664][ T6652] ? lockdep_hardirqs_on+0x79/0x100 [ 234.553899][ T6652] ? _raw_spin_unlock_irq+0x2a/0x40 [ 234.559114][ T6652] ? ptrace_notify+0xfa/0x140 [ 234.563808][ T6652] do_syscall_64+0x35/0xb0 [ 234.568236][ T6652] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 234.574136][ T6652] RIP: 0033:0x7fc128117db9 [ 234.578553][ T6652] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 234.598337][ T6652] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 234.606754][ T6652] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [pid 6656] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6657] <... sendto resumed>) = 1 [pid 6656] <... futex resumed>) = 0 [pid 6657] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6656] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6657] <... futex resumed>) = 0 [pid 6656] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6657] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6656] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6657] <... openat resumed>) = 4 [pid 6656] <... futex resumed>) = 0 [pid 6655] set_robust_list(0x5555564f35e0, 24 [pid 6650] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) ./strace-static-x86_64: Process 6659 attached ./strace-static-x86_64: Process 6658 attached [pid 6657] write(4, "5", 1 [pid 6656] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6655] <... set_robust_list resumed>) = 0 [pid 6654] set_robust_list(0x5555564f35e0, 24 [pid 6652] <... futex resumed>) = -1 EFAULT (Bad address) [pid 6650] exit_group(0 [pid 3608] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6658 [pid 6659] set_robust_list(0x5555564f35e0, 24 [pid 6658] set_robust_list(0x5555564f35e0, 24 [pid 6657] <... write resumed>) = 1 [pid 6655] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6654] <... set_robust_list resumed>) = 0 [pid 6650] <... exit_group resumed>) = ? [pid 3610] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6659 [pid 6659] <... set_robust_list resumed>) = 0 [pid 6658] <... set_robust_list resumed>) = 0 [pid 6657] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6655] <... prctl resumed>) = 0 [pid 6654] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6659] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6658] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6657] <... setsockopt resumed>) = 0 [pid 6655] setpgid(0, 0 [pid 6654] <... prctl resumed>) = 0 [pid 6659] <... prctl resumed>) = 0 [pid 6658] <... prctl resumed>) = 0 [pid 6657] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6655] <... setpgid resumed>) = 0 [pid 6654] setpgid(0, 0 [pid 6659] setpgid(0, 0 [pid 6658] setpgid(0, 0 [pid 6657] <... futex resumed>) = 1 [pid 6656] <... futex resumed>) = 0 [pid 6659] <... setpgid resumed>) = 0 [pid 6658] <... setpgid resumed>) = 0 [pid 6657] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6656] exit_group(0 [pid 6655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6654] <... setpgid resumed>) = 0 [pid 6652] +++ exited with 0 +++ [pid 6650] +++ exited with 0 +++ [pid 6659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6657] <... futex resumed>) = ? [pid 6656] <... exit_group resumed>) = ? [pid 6655] <... openat resumed>) = 3 [pid 6659] <... openat resumed>) = 3 [pid 6658] <... openat resumed>) = 3 [pid 6657] +++ exited with 0 +++ [pid 6655] write(3, "1000", 4 [pid 6654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6650, si_uid=0, si_status=0, si_utime=0, si_stime=24} --- [pid 6659] write(3, "1000", 4 [pid 6658] write(3, "1000", 4 [pid 6655] <... write resumed>) = 4 [pid 6654] <... openat resumed>) = 3 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 6659] <... write resumed>) = 4 [pid 6658] <... write resumed>) = 4 [pid 6656] +++ exited with 0 +++ [pid 6655] close(3 [pid 6654] write(3, "1000", 4 [pid 3607] <... restart_syscall resumed>) = 0 [pid 6659] close(3 [pid 6658] close(3 [pid 6655] <... close resumed>) = 0 [pid 6654] <... write resumed>) = 4 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6656, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 6659] <... close resumed>) = 0 [pid 6658] <... close resumed>) = 0 [pid 6655] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6654] close(3 [pid 3614] restart_syscall(<... resuming interrupted clone ...> [pid 6659] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6658] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6655] <... futex resumed>) = 0 [pid 6654] <... close resumed>) = 0 [pid 3614] <... restart_syscall resumed>) = 0 [pid 6659] <... futex resumed>) = 0 [pid 6658] <... futex resumed>) = 0 [pid 6655] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6654] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6659] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6658] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6655] <... mmap resumed>) = 0x7fc1280a9000 [pid 6654] <... futex resumed>) = 0 [pid 6658] <... mmap resumed>) = 0x7fc1280a9000 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6659] <... mmap resumed>) = 0x7fc1280a9000 [pid 6658] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6655] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6654] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6659] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6658] <... mprotect resumed>) = 0 [pid 6655] <... mprotect resumed>) = 0 [pid 6654] <... mmap resumed>) = 0x7fc1280a9000 [pid 3614] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6661 [pid 3607] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6660 ./strace-static-x86_64: Process 6661 attached ./strace-static-x86_64: Process 6660 attached [pid 6659] <... mprotect resumed>) = 0 [pid 6658] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6655] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6654] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6659] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6654] <... mprotect resumed>) = 0 [pid 6658] <... clone resumed>, parent_tid=[6662], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6662 [pid 6659] <... clone resumed>, parent_tid=[6664], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6664 [pid 6658] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6655] <... clone resumed>, parent_tid=[6663], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6663 [pid 6654] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6661] set_robust_list(0x5555564f35e0, 24 [pid 6659] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6658] <... futex resumed>) = 0 [pid 6655] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6665 attached ./strace-static-x86_64: Process 6664 attached ./strace-static-x86_64: Process 6663 attached [pid 6661] <... set_robust_list resumed>) = 0 [pid 6659] <... futex resumed>) = 0 [pid 6658] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6655] <... futex resumed>) = 0 [pid 6654] <... clone resumed>, parent_tid=[6665], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6665 [pid 6660] set_robust_list(0x5555564f35e0, 24 [pid 6664] set_robust_list(0x7fc1280c99e0, 24 [pid 6663] set_robust_list(0x7fc1280c99e0, 24 [pid 6661] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6660] <... set_robust_list resumed>) = 0 [pid 6659] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6655] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6654] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6662 attached [pid 6665] set_robust_list(0x7fc1280c99e0, 24 [pid 6664] <... set_robust_list resumed>) = 0 [pid 6663] <... set_robust_list resumed>) = 0 [pid 6661] <... prctl resumed>) = 0 [pid 6660] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6654] <... futex resumed>) = 0 [pid 6665] <... set_robust_list resumed>) = 0 [pid 6664] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6663] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6662] set_robust_list(0x7fc1280c99e0, 24 [pid 6661] setpgid(0, 0 [pid 6660] <... prctl resumed>) = 0 [pid 6654] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6665] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6664] <... socket resumed>) = 3 [pid 6663] <... socket resumed>) = 3 [pid 6662] <... set_robust_list resumed>) = 0 [pid 6661] <... setpgid resumed>) = 0 [pid 6660] setpgid(0, 0 [pid 6665] <... socket resumed>) = 3 [pid 6664] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6663] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6662] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6660] <... setpgid resumed>) = 0 [pid 6665] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6664] <... futex resumed>) = 1 [pid 6663] <... futex resumed>) = 1 [pid 6662] <... socket resumed>) = 3 [pid 6659] <... futex resumed>) = 0 [pid 6655] <... futex resumed>) = 0 [pid 6665] <... futex resumed>) = 1 [pid 6664] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6663] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6662] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6661] <... openat resumed>) = 3 [pid 6660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6659] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6655] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6654] <... futex resumed>) = 0 [pid 6665] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6664] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6662] <... futex resumed>) = 1 [pid 6661] write(3, "1000", 4 [pid 6660] <... openat resumed>) = 3 [pid 6659] <... futex resumed>) = 0 [pid 6658] <... futex resumed>) = 0 [pid 6655] <... futex resumed>) = 0 [ 234.614724][ T6652] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 234.622699][ T6652] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 234.630670][ T6652] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 234.638643][ T6652] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 234.646630][ T6652] [pid 6654] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6665] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6664] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6663] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6662] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6661] <... write resumed>) = 4 [pid 6660] write(3, "1000", 4 [pid 6659] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6658] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6655] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6654] <... futex resumed>) = 0 [pid 6665] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6664] <... setsockopt resumed>) = 0 [pid 6663] <... setsockopt resumed>) = 0 [pid 6662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6661] close(3 [pid 6660] <... write resumed>) = 4 [pid 6658] <... futex resumed>) = 0 [pid 6654] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6665] <... setsockopt resumed>) = 0 [pid 6664] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6663] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6662] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6661] <... close resumed>) = 0 [pid 6660] close(3 [pid 6658] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6665] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6664] <... futex resumed>) = 1 [pid 6663] <... futex resumed>) = 1 [pid 6662] <... setsockopt resumed>) = 0 [pid 6661] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6660] <... close resumed>) = 0 [pid 6659] <... futex resumed>) = 0 [pid 6655] <... futex resumed>) = 0 [pid 6665] <... futex resumed>) = 1 [pid 6664] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6663] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6662] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6661] <... futex resumed>) = 0 [pid 6660] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6659] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6655] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6654] <... futex resumed>) = 0 [pid 6665] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6664] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6662] <... futex resumed>) = 1 [pid 6661] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6660] <... futex resumed>) = 0 [pid 6659] <... futex resumed>) = 0 [pid 6658] <... futex resumed>) = 0 [pid 6655] <... futex resumed>) = 0 [pid 6654] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6665] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6664] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6663] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6662] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6661] <... mmap resumed>) = 0x7fc1280a9000 [pid 6660] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6659] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6658] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6655] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6654] <... futex resumed>) = 0 [pid 6665] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6664] <... setsockopt resumed>) = 0 [pid 6663] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6661] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6660] <... mmap resumed>) = 0x7fc1280a9000 [pid 6658] <... futex resumed>) = 0 [pid 6654] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6665] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6664] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6663] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6662] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6661] <... mprotect resumed>) = 0 [pid 6660] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6658] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6665] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6664] <... futex resumed>) = 1 [pid 6663] <... futex resumed>) = 1 [pid 6662] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6661] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6660] <... mprotect resumed>) = 0 [pid 6659] <... futex resumed>) = 0 [pid 6655] <... futex resumed>) = 0 [pid 6665] <... futex resumed>) = 1 [pid 6664] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6663] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6662] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6660] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6659] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6655] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6654] <... futex resumed>) = 0 [pid 6665] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6664] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6662] <... futex resumed>) = 1 [pid 6661] <... clone resumed>, parent_tid=[6666], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6666 [pid 6659] <... futex resumed>) = 0 [pid 6658] <... futex resumed>) = 0 [pid 6655] <... futex resumed>) = 0 [pid 6654] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6667 attached [pid 6665] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6664] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6663] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6662] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6661] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6660] <... clone resumed>, parent_tid=[6667], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6667 [pid 6659] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6658] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6655] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6654] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6666 attached [pid 6667] set_robust_list(0x7fc1280c99e0, 24 [pid 6665] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6664] <... setsockopt resumed>) = 0 [pid 6663] <... setsockopt resumed>) = 0 [pid 6662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6661] <... futex resumed>) = 0 [pid 6660] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6658] <... futex resumed>) = 0 [pid 6654] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6667] <... set_robust_list resumed>) = 0 [pid 6666] set_robust_list(0x7fc1280c99e0, 24 [pid 6665] <... setsockopt resumed>) = 0 [pid 6664] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6663] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6662] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6661] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6660] <... futex resumed>) = 0 [pid 6658] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6667] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6666] <... set_robust_list resumed>) = 0 [pid 6665] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6664] <... futex resumed>) = 1 [pid 6663] <... futex resumed>) = 1 [pid 6662] <... setsockopt resumed>) = 0 [pid 6660] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6659] <... futex resumed>) = 0 [pid 6655] <... futex resumed>) = 0 [pid 6667] <... socket resumed>) = 3 [pid 6666] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6665] <... futex resumed>) = 1 [pid 6664] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6663] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6662] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6659] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6655] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6654] <... futex resumed>) = 0 [pid 6667] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6666] <... socket resumed>) = 3 [pid 6665] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6664] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6662] <... futex resumed>) = 1 [pid 6659] <... futex resumed>) = 0 [pid 6658] <... futex resumed>) = 0 [pid 6655] <... futex resumed>) = 0 [pid 6654] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6667] <... futex resumed>) = 1 [pid 6666] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6665] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6664] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6663] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6662] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6660] <... futex resumed>) = 0 [pid 6659] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6658] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6655] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6654] <... futex resumed>) = 0 [pid 6667] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6666] <... futex resumed>) = 1 [pid 6665] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6664] <... sendto resumed>) = 1 [pid 6663] <... sendto resumed>) = 1 [pid 6662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6661] <... futex resumed>) = 0 [pid 6660] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6658] <... futex resumed>) = 0 [pid 6654] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6667] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6666] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6664] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6663] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6658] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6667] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6664] <... futex resumed>) = 1 [pid 6663] <... futex resumed>) = 1 [pid 6665] <... sendto resumed>) = 1 [pid 6662] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6661] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6660] <... futex resumed>) = 0 [pid 6659] <... futex resumed>) = 0 [pid 6655] <... futex resumed>) = 0 [pid 6667] <... setsockopt resumed>) = 0 [pid 6665] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6664] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6663] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6659] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6655] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6667] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6666] <... futex resumed>) = 0 [pid 6665] <... futex resumed>) = 1 [pid 6664] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6662] <... sendto resumed>) = 1 [pid 6661] <... futex resumed>) = 1 [pid 6660] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6659] <... futex resumed>) = 0 [pid 6655] <... futex resumed>) = 0 [pid 6654] <... futex resumed>) = 0 [pid 6667] <... futex resumed>) = 0 [pid 6666] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6665] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6664] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6663] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6662] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6661] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6660] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6659] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6655] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6654] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6667] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6666] <... setsockopt resumed>) = 0 [pid 6665] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6664] <... sendto resumed>) = 1 [pid 6663] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6662] <... futex resumed>) = 1 [pid 6660] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6658] <... futex resumed>) = 0 [pid 6654] <... futex resumed>) = 0 [pid 6667] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6666] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6665] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6664] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6663] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6662] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6660] <... futex resumed>) = 0 [pid 6658] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6654] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6667] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6666] <... futex resumed>) = 1 [pid 6665] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6664] <... futex resumed>) = 1 [pid 6663] <... futex resumed>) = 1 [pid 6662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6661] <... futex resumed>) = 0 [pid 6660] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6659] <... futex resumed>) = 0 [pid 6658] <... futex resumed>) = 0 [pid 6655] <... futex resumed>) = 0 [pid 6667] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6666] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6665] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6664] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6663] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6662] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6661] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6659] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6658] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6655] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6667] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6666] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6665] <... futex resumed>) = 1 [pid 6664] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6662] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6661] <... futex resumed>) = 0 [pid 6659] <... futex resumed>) = 0 [pid 6655] <... futex resumed>) = 0 [pid 6654] <... futex resumed>) = 0 [pid 6667] <... futex resumed>) = 1 [pid 6666] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6665] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6664] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6663] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6662] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6661] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6660] <... futex resumed>) = 0 [pid 6659] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6655] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6654] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6667] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6666] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6665] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6664] <... openat resumed>) = 4 [pid 6663] <... openat resumed>) = 4 [pid 6662] <... futex resumed>) = 1 [pid 6660] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6658] <... futex resumed>) = 0 [pid 6654] <... futex resumed>) = 0 [pid 6667] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6666] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6665] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6664] write(4, "5", 1 [pid 6663] write(4, "5", 1 [pid 6662] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6660] <... futex resumed>) = 0 [pid 6658] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6654] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6667] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6666] <... futex resumed>) = 1 [pid 6665] <... openat resumed>) = 4 [pid 6664] <... write resumed>) = 1 [pid 6663] <... write resumed>) = 1 [pid 6662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6661] <... futex resumed>) = 0 [pid 6660] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6658] <... futex resumed>) = 0 [pid 6667] <... setsockopt resumed>) = 0 [pid 6666] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6665] write(4, "5", 1 [pid 6664] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6663] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6662] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6661] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6658] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6667] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6666] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6665] <... write resumed>) = 1 [pid 6664] <... setsockopt resumed>) = 0 [pid 6663] <... setsockopt resumed>) = 0 [pid 6662] <... openat resumed>) = 4 [pid 6661] <... futex resumed>) = 0 [pid 6667] <... futex resumed>) = 1 [pid 6666] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6665] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6664] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6663] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6662] write(4, "5", 1 [pid 6661] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6660] <... futex resumed>) = 0 [pid 6667] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6666] <... setsockopt resumed>) = 0 [pid 6665] <... setsockopt resumed>) = 0 [pid 6664] <... futex resumed>) = 1 [pid 6662] <... write resumed>) = 1 [pid 6660] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6659] <... futex resumed>) = 0 [pid 6667] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6665] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6662] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6660] <... futex resumed>) = 0 [pid 6667] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6666] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6664] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6662] <... setsockopt resumed>) = 0 [pid 6660] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6659] exit_group(0 [pid 6667] <... sendto resumed>) = 1 [pid 6662] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6667] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6658] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6654] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 234.775794][ T6663] FAULT_INJECTION: forcing a failure. [ 234.775794][ T6663] name fail_futex, interval 1, probability 0, space 0, times 0 [ 234.787848][ T6665] FAULT_INJECTION: forcing a failure. [ 234.787848][ T6665] name fail_futex, interval 1, probability 0, space 0, times 0 [ 234.789714][ T6663] CPU: 0 PID: 6663 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 234.806944][ T6662] FAULT_INJECTION: forcing a failure. [ 234.806944][ T6662] name fail_futex, interval 1, probability 0, space 0, times 0 [pid 6667] <... futex resumed>) = 1 [pid 6660] <... futex resumed>) = 0 [pid 6658] exit_group(0 [pid 6654] exit_group(0 [pid 6667] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6660] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6658] <... exit_group resumed>) = ? [pid 6654] <... exit_group resumed>) = ? [pid 6667] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6660] <... futex resumed>) = 0 [pid 6667] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6660] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6667] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6667] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6660] <... futex resumed>) = 0 [pid 6667] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6660] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6667] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6660] <... futex resumed>) = 0 [pid 6667] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6660] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6667] <... openat resumed>) = 4 [pid 6661] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6667] write(4, "5", 1 [pid 6661] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6667] <... write resumed>) = 1 [pid 6661] <... futex resumed>) = 0 [pid 6667] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6661] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6667] <... setsockopt resumed>) = 0 [ 234.811904][ T6663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 234.811920][ T6663] Call Trace: [ 234.811929][ T6663] [ 234.811939][ T6663] dump_stack_lvl+0xcd/0x134 [ 234.839722][ T6667] FAULT_INJECTION: forcing a failure. [ 234.839722][ T6667] name fail_futex, interval 1, probability 0, space 0, times 0 [ 234.840957][ T6663] should_fail.cold+0x5/0xa [ 234.840994][ T6663] get_futex_key+0x5b2/0x1c50 [ 234.841019][ T6663] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 234.873545][ T6663] ? futex_setup_timer+0xf0/0xf0 [ 234.878510][ T6663] futex_wake+0xe4/0x490 [ 234.882761][ T6663] ? futex_wake_mark+0x1a0/0x1a0 [ 234.887702][ T6663] ? ptrace_stop.part.0+0x5ec/0xa80 [ 234.892903][ T6663] ? do_raw_spin_lock+0x120/0x2a0 [ 234.897928][ T6663] ? rwlock_bug.part.0+0x90/0x90 [ 234.902866][ T6663] ? _raw_spin_lock_irq+0x41/0x50 [ 234.907899][ T6663] do_futex+0x266/0x300 [ 234.912063][ T6663] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 234.917958][ T6663] ? find_held_lock+0x2d/0x110 [ 234.922737][ T6663] __x64_sys_futex+0x1b0/0x4a0 [ 234.927503][ T6663] ? do_futex+0x300/0x300 [ 234.931850][ T6663] ? _raw_spin_unlock_irq+0x1f/0x40 [ 234.937070][ T6663] ? lockdep_hardirqs_on+0x79/0x100 [ 234.942298][ T6663] ? _raw_spin_unlock_irq+0x2a/0x40 [ 234.947528][ T6663] ? ptrace_notify+0xfa/0x140 [ 234.952223][ T6663] do_syscall_64+0x35/0xb0 [ 234.956653][ T6663] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 234.962561][ T6663] RIP: 0033:0x7fc128117db9 [ 234.966986][ T6663] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 234.986597][ T6663] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 234.995013][ T6663] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 235.002989][ T6663] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 235.010964][ T6663] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 235.018938][ T6663] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [pid 6667] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6666] <... futex resumed>) = 1 [pid 6664] <... futex resumed>) = ? [pid 6663] <... futex resumed>) = -1 EFAULT (Bad address) [pid 6661] <... futex resumed>) = 0 [pid 6660] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6659] <... exit_group resumed>) = ? [pid 6655] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6666] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6664] +++ exited with 0 +++ [pid 6659] +++ exited with 0 +++ [pid 6666] <... sendto resumed>) = 1 [pid 6666] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6659, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 6666] <... futex resumed>) = 0 [pid 6663] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6666] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3610] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6668 ./strace-static-x86_64: Process 6668 attached [pid 6668] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6668] setpgid(0, 0) = 0 [pid 6668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6668] write(3, "1000", 4) = 4 [pid 6668] close(3 [pid 6655] exit_group(0 [pid 6668] <... close resumed>) = 0 [pid 6663] <... futex resumed>) = ? [pid 6655] <... exit_group resumed>) = ? [pid 6668] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6663] +++ exited with 0 +++ [pid 6655] +++ exited with 0 +++ [pid 6668] <... futex resumed>) = 0 [pid 6668] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6668] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [ 235.026926][ T6663] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 235.034931][ T6663] [ 235.042887][ T6665] CPU: 0 PID: 6665 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 235.053469][ T6665] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 235.063553][ T6665] Call Trace: [ 235.066856][ T6665] [ 235.069809][ T6665] dump_stack_lvl+0xcd/0x134 [ 235.074454][ T6665] should_fail.cold+0x5/0xa [ 235.078992][ T6665] get_futex_key+0x5b2/0x1c50 [ 235.083701][ T6665] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 235.089716][ T6665] ? futex_setup_timer+0xf0/0xf0 [ 235.094693][ T6665] futex_wake+0xe4/0x490 [ 235.098964][ T6665] ? futex_wake_mark+0x1a0/0x1a0 [ 235.103921][ T6665] ? ptrace_stop.part.0+0x5ec/0xa80 [ 235.109138][ T6665] ? do_raw_spin_lock+0x120/0x2a0 [ 235.114207][ T6665] ? rwlock_bug.part.0+0x90/0x90 [ 235.119183][ T6665] ? _raw_spin_lock_irq+0x41/0x50 [ 235.124230][ T6665] do_futex+0x266/0x300 [ 235.128409][ T6665] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 235.134333][ T6665] ? find_held_lock+0x2d/0x110 [ 235.139152][ T6665] __x64_sys_futex+0x1b0/0x4a0 [ 235.140197][ T6666] FAULT_INJECTION: forcing a failure. [ 235.140197][ T6666] name fail_futex, interval 1, probability 0, space 0, times 0 [ 235.143944][ T6665] ? do_futex+0x300/0x300 [ 235.143971][ T6665] ? _raw_spin_unlock_irq+0x1f/0x40 [ 235.166233][ T6665] ? lockdep_hardirqs_on+0x79/0x100 [ 235.171448][ T6665] ? _raw_spin_unlock_irq+0x2a/0x40 [ 235.176669][ T6665] ? ptrace_notify+0xfa/0x140 [ 235.181381][ T6665] do_syscall_64+0x35/0xb0 [ 235.185829][ T6665] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 235.191756][ T6665] RIP: 0033:0x7fc128117db9 [ 235.196200][ T6665] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 235.215843][ T6665] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [pid 6668] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6669], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6669 [pid 6668] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6668] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6669 attached [pid 6669] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6669] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6669] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6668] <... futex resumed>) = 0 [pid 6669] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6668] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6669] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6668] <... futex resumed>) = 0 [pid 6669] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6668] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6669] <... setsockopt resumed>) = 0 [pid 6669] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6668] <... futex resumed>) = 0 [pid 6669] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6668] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6669] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6668] <... futex resumed>) = 0 [pid 6669] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6668] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6669] <... setsockopt resumed>) = 0 [pid 6669] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6668] <... futex resumed>) = 0 [pid 6669] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6668] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6669] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6668] <... futex resumed>) = 0 [pid 6669] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6668] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6669] <... setsockopt resumed>) = 0 [pid 6669] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6668] <... futex resumed>) = 0 [pid 6669] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6668] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6669] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6668] <... futex resumed>) = 0 [pid 6669] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6668] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6669] <... sendto resumed>) = 1 [pid 6669] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6668] <... futex resumed>) = 0 [pid 6669] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6668] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6669] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6668] <... futex resumed>) = 0 [pid 6669] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6668] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6669] <... sendto resumed>) = 1 [pid 6669] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6668] <... futex resumed>) = 0 [pid 6669] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6668] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6669] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6668] <... futex resumed>) = 0 [pid 6669] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6668] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6669] <... openat resumed>) = 4 [pid 6669] write(4, "5", 1) = 1 [pid 6669] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6669] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6668] <... futex resumed>) = 0 [pid 6661] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6669] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6668] exit_group(0 [pid 6666] <... futex resumed>) = 0 [pid 6661] <... futex resumed>) = 1 [pid 6669] <... futex resumed>) = ? [pid 6668] <... exit_group resumed>) = ? [pid 6666] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6661] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6669] +++ exited with 0 +++ [pid 6668] +++ exited with 0 +++ [pid 6666] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6666] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6668, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6666] <... futex resumed>) = 1 [pid 6661] <... futex resumed>) = 0 [pid 6666] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6661] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6666] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6661] <... futex resumed>) = 0 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6666] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6661] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6666] <... openat resumed>) = 4 [pid 3610] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6670 [pid 6666] write(4, "5", 1) = 1 [pid 6666] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6666] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6670 attached [pid 6670] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6670] setpgid(0, 0) = 0 [pid 6670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6670] write(3, "1000", 4) = 4 [pid 6670] close(3) = 0 [pid 6670] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6670] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6670] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6670] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6671], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6671 [pid 6670] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6670] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6671 attached [pid 6671] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6671] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6671] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6670] <... futex resumed>) = 0 [pid 6671] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6670] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6671] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6670] <... futex resumed>) = 0 [pid 6661] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6671] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6670] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6661] exit_group(0 [pid 6671] <... setsockopt resumed>) = 0 [pid 6661] <... exit_group resumed>) = ? [pid 6671] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6670] <... futex resumed>) = 0 [pid 6671] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6670] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6671] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6670] <... futex resumed>) = 0 [pid 6671] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6670] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6671] <... setsockopt resumed>) = 0 [pid 6671] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6670] <... futex resumed>) = 0 [pid 6671] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6670] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6671] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6670] <... futex resumed>) = 0 [pid 6671] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6670] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6671] <... setsockopt resumed>) = 0 [pid 6671] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6670] <... futex resumed>) = 0 [pid 6671] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6670] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6671] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6670] <... futex resumed>) = 0 [pid 6671] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6670] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6671] <... sendto resumed>) = 1 [pid 6671] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6670] <... futex resumed>) = 0 [pid 6671] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6670] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6671] <... sendto resumed>) = 1 [pid 6670] <... futex resumed>) = 0 [pid 6671] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6670] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6671] <... futex resumed>) = 0 [pid 6670] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6671] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6670] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6671] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6670] <... futex resumed>) = 0 [pid 6671] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6670] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6671] <... openat resumed>) = 4 [pid 6671] write(4, "5", 1) = 1 [pid 6671] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6671] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6670] <... futex resumed>) = 0 [pid 6671] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6670] exit_group(0 [pid 6671] <... futex resumed>) = ? [pid 6670] <... exit_group resumed>) = ? [pid 6671] +++ exited with 0 +++ [pid 6670] +++ exited with 0 +++ [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6670, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3610] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6672 ./strace-static-x86_64: Process 6672 attached [pid 6672] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6672] setpgid(0, 0) = 0 [pid 6672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6672] write(3, "1000", 4) = 4 [pid 6672] close(3) = 0 [ 235.225334][ T6665] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 235.233333][ T6665] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 235.241410][ T6665] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 235.249416][ T6665] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 235.257409][ T6665] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 235.265414][ T6665] [ 235.268446][ T6662] CPU: 1 PID: 6662 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 235.278985][ T6662] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 235.289049][ T6662] Call Trace: [ 235.292332][ T6662] [ 235.295272][ T6662] dump_stack_lvl+0xcd/0x134 [ 235.299901][ T6662] should_fail.cold+0x5/0xa [ 235.304431][ T6662] get_futex_key+0x5b2/0x1c50 [ 235.309137][ T6662] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 235.315144][ T6662] ? futex_setup_timer+0xf0/0xf0 [ 235.320112][ T6662] futex_wake+0xe4/0x490 [ 235.324372][ T6662] ? futex_wake_mark+0x1a0/0x1a0 [ 235.329331][ T6662] ? ptrace_stop.part.0+0x5ec/0xa80 [ 235.334540][ T6662] ? do_raw_spin_lock+0x120/0x2a0 [ 235.339592][ T6662] ? rwlock_bug.part.0+0x90/0x90 [ 235.344534][ T6662] ? _raw_spin_lock_irq+0x41/0x50 [ 235.349575][ T6662] do_futex+0x266/0x300 [ 235.353740][ T6662] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 235.359642][ T6662] ? find_held_lock+0x2d/0x110 [ 235.364433][ T6662] __x64_sys_futex+0x1b0/0x4a0 [ 235.369232][ T6662] ? do_futex+0x300/0x300 [ 235.373573][ T6662] ? _raw_spin_unlock_irq+0x1f/0x40 [ 235.378787][ T6662] ? lockdep_hardirqs_on+0x79/0x100 [ 235.383998][ T6662] ? _raw_spin_unlock_irq+0x2a/0x40 [ 235.389205][ T6662] ? ptrace_notify+0xfa/0x140 [ 235.393894][ T6662] do_syscall_64+0x35/0xb0 [ 235.398322][ T6662] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 235.404228][ T6662] RIP: 0033:0x7fc128117db9 [ 235.408657][ T6662] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 235.428275][ T6662] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 235.436705][ T6662] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 235.444699][ T6662] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 235.452677][ T6662] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 235.460657][ T6662] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 235.468730][ T6662] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [pid 6672] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6660] exit_group(0 [pid 6672] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6672] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6672] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6673], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6673 [pid 6672] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 235.476722][ T6662] [ 235.479744][ T6667] CPU: 0 PID: 6667 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 235.490271][ T6667] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 235.500347][ T6667] Call Trace: [ 235.503634][ T6667] [ 235.506574][ T6667] dump_stack_lvl+0xcd/0x134 [ 235.511196][ T6667] should_fail.cold+0x5/0xa [ 235.515715][ T6667] get_futex_key+0x5b2/0x1c50 [ 235.520415][ T6667] ? lockdep_hardirqs_on_prepare+0x400/0x400 [pid 6672] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6660] <... exit_group resumed>) = ? [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6655, si_uid=0, si_status=0, si_utime=0, si_stime=27} --- [pid 3611] restart_syscall(<... resuming interrupted clone ...> [pid 6672] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3611] <... restart_syscall resumed>) = 0 [pid 6672] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6672] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6672] <... mmap resumed>) = 0x7fc128088000 [pid 6672] mprotect(0x7fc128089000, 131072, PROT_READ|PROT_WRITE [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6674 [pid 6672] <... mprotect resumed>) = 0 [pid 6672] clone(child_stack=0x7fc1280a83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6675], tls=0x7fc1280a8700, child_tidptr=0x7fc1280a89d0) = 6675 [pid 6672] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 235.526421][ T6667] ? futex_setup_timer+0xf0/0xf0 [ 235.531389][ T6667] futex_wake+0xe4/0x490 [ 235.535660][ T6667] ? futex_wake_mark+0x1a0/0x1a0 [ 235.540629][ T6667] ? ptrace_stop.part.0+0x5ec/0xa80 [ 235.545862][ T6667] ? do_raw_spin_lock+0x120/0x2a0 [ 235.550941][ T6667] ? rwlock_bug.part.0+0x90/0x90 [ 235.555908][ T6667] ? _raw_spin_lock_irq+0x41/0x50 [ 235.560956][ T6667] do_futex+0x266/0x300 [ 235.565128][ T6667] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 235.571046][ T6667] ? find_held_lock+0x2d/0x110 [pid 6672] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 6672] futex(0x7fc1281a04cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6672] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc128067000 [ 235.575841][ T6667] __x64_sys_futex+0x1b0/0x4a0 [ 235.580631][ T6667] ? do_futex+0x300/0x300 [ 235.584972][ T6667] ? _raw_spin_unlock_irq+0x1f/0x40 [ 235.590183][ T6667] ? lockdep_hardirqs_on+0x79/0x100 [ 235.595396][ T6667] ? _raw_spin_unlock_irq+0x2a/0x40 [ 235.600604][ T6667] ? ptrace_notify+0xfa/0x140 [ 235.605308][ T6667] do_syscall_64+0x35/0xb0 [ 235.609759][ T6667] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 235.615684][ T6667] RIP: 0033:0x7fc128117db9 [ 235.620124][ T6667] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 235.639768][ T6667] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 235.648215][ T6667] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 235.656306][ T6667] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 235.664308][ T6667] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [pid 6672] mprotect(0x7fc128068000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6672] clone(child_stack=0x7fc1280873f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6676], tls=0x7fc128087700, child_tidptr=0x7fc1280879d0) = 6676 [pid 6672] futex(0x7fc1281a04c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6672] futex(0x7fc1281a04cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6676 attached [pid 6676] set_robust_list(0x7fc1280879e0, 24) = 0 [pid 6676] setsockopt(-1, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28) = -1 EBADF (Bad file descriptor) [pid 6676] futex(0x7fc1281a04cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6672] <... futex resumed>) = 0 [pid 6676] futex(0x7fc1281a04c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6672] futex(0x7fc1281a04c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6676] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6672] <... futex resumed>) = 0 [pid 6676] setsockopt(-1, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6672] futex(0x7fc1281a04cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6676] <... setsockopt resumed>) = -1 EBADF (Bad file descriptor) [pid 6676] futex(0x7fc1281a04cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6672] <... futex resumed>) = 0 [pid 6676] futex(0x7fc1281a04c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6672] futex(0x7fc1281a04c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6676] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6672] <... futex resumed>) = 0 [pid 6676] sendto(-1, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6672] futex(0x7fc1281a04cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6676] <... sendto resumed>) = -1 EBADF (Bad file descriptor) [pid 6676] futex(0x7fc1281a04cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6672] <... futex resumed>) = 0 [pid 6676] futex(0x7fc1281a04c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6672] futex(0x7fc1281a04c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6676] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6672] <... futex resumed>) = 0 [pid 6676] sendto(-1, "\x01", 1, 0, NULL, 0 [pid 6672] futex(0x7fc1281a04cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6676] <... sendto resumed>) = -1 EBADF (Bad file descriptor) [pid 6676] futex(0x7fc1281a04cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6672] <... futex resumed>) = 0 [pid 6676] futex(0x7fc1281a04c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6672] futex(0x7fc1281a04c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6676] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6672] <... futex resumed>) = 0 [pid 6676] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6672] futex(0x7fc1281a04cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6676] <... openat resumed>) = 3 [pid 6676] write(3, "5", 1) = 1 [pid 6676] setsockopt(-1, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = -1 EBADF (Bad file descriptor) [pid 6676] futex(0x7fc1281a04cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6672] <... futex resumed>) = 0 [ 235.672325][ T6667] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 235.680316][ T6667] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 235.688326][ T6667] [ 235.691354][ T6666] CPU: 1 PID: 6666 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 235.701881][ T6666] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 235.711951][ T6666] Call Trace: [ 235.715228][ T6666] [ 235.718161][ T6666] dump_stack_lvl+0xcd/0x134 [ 235.722762][ T6666] should_fail.cold+0x5/0xa [ 235.727270][ T6666] get_futex_key+0x5b2/0x1c50 [ 235.731966][ T6666] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 235.737951][ T6666] ? futex_setup_timer+0xf0/0xf0 [ 235.742901][ T6666] futex_wake+0xe4/0x490 [ 235.747149][ T6666] ? futex_wake_mark+0x1a0/0x1a0 [ 235.752092][ T6666] ? ptrace_stop.part.0+0x5ec/0xa80 [ 235.757310][ T6666] ? do_raw_spin_lock+0x120/0x2a0 [ 235.762340][ T6666] ? rwlock_bug.part.0+0x90/0x90 [ 235.767293][ T6666] ? _raw_spin_lock_irq+0x41/0x50 [ 235.772326][ T6666] do_futex+0x266/0x300 [ 235.776515][ T6666] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 235.782411][ T6666] ? find_held_lock+0x2d/0x110 [ 235.787186][ T6666] __x64_sys_futex+0x1b0/0x4a0 [ 235.791971][ T6666] ? do_futex+0x300/0x300 [ 235.796300][ T6666] ? _raw_spin_unlock_irq+0x1f/0x40 [ 235.801519][ T6666] ? lockdep_hardirqs_on+0x79/0x100 [ 235.806737][ T6666] ? _raw_spin_unlock_irq+0x2a/0x40 [ 235.811941][ T6666] ? ptrace_notify+0xfa/0x140 [ 235.816633][ T6666] do_syscall_64+0x35/0xb0 [ 235.821137][ T6666] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 235.827036][ T6666] RIP: 0033:0x7fc128117db9 [ 235.831450][ T6666] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 235.851062][ T6666] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 235.859476][ T6666] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 235.867447][ T6666] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [pid 6676] futex(0x7fc1281a04c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 6675 attached ./strace-static-x86_64: Process 6674 attached ./strace-static-x86_64: Process 6673 attached [pid 6667] <... futex resumed>) = ? [pid 6665] <... futex resumed>) = ? [pid 6662] <... futex resumed>) = ? [pid 6675] set_robust_list(0x7fc1280a89e0, 24 [pid 6674] set_robust_list(0x5555564f35e0, 24 [pid 6673] set_robust_list(0x7fc1280c99e0, 24 [pid 6667] +++ exited with 0 +++ [pid 6665] +++ exited with 0 +++ [pid 6662] +++ exited with 0 +++ [pid 6660] +++ exited with 0 +++ [pid 6658] +++ exited with 0 +++ [pid 6654] +++ exited with 0 +++ [pid 6675] <... set_robust_list resumed>) = 0 [pid 6674] <... set_robust_list resumed>) = 0 [pid 6673] <... set_robust_list resumed>) = 0 [pid 6675] setsockopt(-1, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6674] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6673] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6654, si_uid=0, si_status=0, si_utime=0, si_stime=26} --- [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6658, si_uid=0, si_status=0, si_utime=0, si_stime=27} --- [pid 6675] <... setsockopt resumed>) = -1 EBADF (Bad file descriptor) [pid 6674] <... prctl resumed>) = 0 [pid 6673] <... socket resumed>) = 4 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6660, si_uid=0, si_status=0, si_utime=0, si_stime=43} --- [pid 6675] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6674] setpgid(0, 0 [pid 6673] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6672] exit_group(0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6676] <... futex resumed>) = ? [pid 6675] <... futex resumed>) = ? [pid 6674] <... setpgid resumed>) = 0 [pid 6673] <... futex resumed>) = ? [pid 6672] <... exit_group resumed>) = ? [pid 6675] +++ exited with 0 +++ [pid 6674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6673] +++ exited with 0 +++ [pid 6674] <... openat resumed>) = 3 [pid 6674] write(3, "1000", 4) = 4 [pid 6674] close(3) = 0 [pid 6674] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6674] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6674] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6674] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6678], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6678 [pid 6674] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6674] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6678 attached [pid 6678] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6678] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6678] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6674] <... futex resumed>) = 0 [pid 6674] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6674] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6678] <... futex resumed>) = 1 [pid 6678] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8) = 0 [pid 6678] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6674] <... futex resumed>) = 0 [pid 6674] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6674] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6678] <... futex resumed>) = 1 [pid 6678] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28) = 0 [pid 6678] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6674] <... futex resumed>) = 0 [pid 6674] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6674] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6678] <... futex resumed>) = 1 [pid 6678] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1) = 0 [pid 6678] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6674] <... futex resumed>) = 0 [pid 6674] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6674] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6678] <... futex resumed>) = 1 [pid 6678] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28) = 1 [pid 6678] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6674] <... futex resumed>) = 0 [pid 6674] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6674] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6678] <... futex resumed>) = 1 [pid 6678] sendto(3, "\x01", 1, 0, NULL, 0 [pid 3607] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6677 [pid 6678] <... sendto resumed>) = 1 [pid 6678] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6674] <... futex resumed>) = 0 [pid 6674] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6674] <... futex resumed>) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6674] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6678] <... futex resumed>) = 1 [pid 6678] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 6678] write(4, "5", 1) = 1 [pid 6678] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 3608] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6680 [pid 3615] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6679 [pid 6678] <... setsockopt resumed>) = 0 [pid 6678] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6674] <... futex resumed>) = 0 [pid 6674] exit_group(0) = ? [pid 6678] <... futex resumed>) = ? [ 235.875416][ T6666] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 235.883387][ T6666] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 235.891355][ T6666] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 235.899341][ T6666] [ 235.915379][ T6676] FAULT_INJECTION: forcing a failure. [ 235.915379][ T6676] name fail_futex, interval 1, probability 0, space 0, times 0 [ 235.936392][ T6676] CPU: 1 PID: 6676 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 235.946949][ T6676] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 235.957029][ T6676] Call Trace: [ 235.960326][ T6676] [ 235.963290][ T6676] dump_stack_lvl+0xcd/0x134 [ 235.967917][ T6676] should_fail.cold+0x5/0xa [ 235.969485][ T6682] FAULT_INJECTION: forcing a failure. [ 235.969485][ T6682] name fail_futex, interval 1, probability 0, space 0, times 0 [ 235.972433][ T6676] get_futex_key+0x11d2/0x1c50 [ 235.989951][ T6676] ? futex_setup_timer+0xf0/0xf0 [ 235.994918][ T6676] futex_wake+0xe4/0x490 [ 235.999174][ T6676] ? futex_wake_mark+0x1a0/0x1a0 [ 236.004125][ T6676] ? find_held_lock+0x2d/0x110 [ 236.008905][ T6676] do_futex+0x266/0x300 [ 236.013090][ T6676] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 236.019009][ T6676] mm_release+0x235/0x2c0 [ 236.023342][ T6676] do_exit+0x8a0/0x29d0 [ 236.027500][ T6676] ? find_held_lock+0x2d/0x110 [ 236.032272][ T6676] ? mm_update_next_owner+0x7a0/0x7a0 [ 236.037647][ T6676] ? lock_downgrade+0x6e0/0x6e0 [ 236.042527][ T6676] do_group_exit+0xd2/0x2f0 [ 236.047057][ T6676] get_signal+0x2542/0x2600 [ 236.051599][ T6676] ? exit_signals+0x8b0/0x8b0 [ 236.056282][ T6676] ? userns_owner+0x40/0x40 [ 236.060798][ T6676] ? __task_pid_nr_ns+0x168/0x4b0 [ 236.065829][ T6676] ? lock_downgrade+0x6e0/0x6e0 [ 236.070700][ T6676] arch_do_signal_or_restart+0x82/0x2300 [ 236.076356][ T6676] ? from_kuid_munged+0xa2/0x130 [ 236.081316][ T6676] ? find_held_lock+0x2d/0x110 [ 236.086094][ T6676] ? get_sigframe_size+0x10/0x10 [ 236.091041][ T6676] ? ptrace_notify+0xfa/0x140 [ 236.095720][ T6676] ? lock_downgrade+0x6e0/0x6e0 [ 236.100570][ T6676] ? send_sig+0xfe/0x160 [ 236.104815][ T6676] ? send_sig_info+0x140/0x140 [ 236.109579][ T6676] ? exit_to_user_mode_prepare+0x137/0x250 [ 236.115406][ T6676] exit_to_user_mode_prepare+0x15f/0x250 [ 236.121041][ T6676] syscall_exit_to_user_mode+0x19/0x50 [ 236.126502][ T6676] do_syscall_64+0x42/0xb0 [ 236.130940][ T6676] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 236.136858][ T6676] RIP: 0033:0x7fc128117db9 [ 236.141287][ T6676] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 236.160902][ T6676] RSP: 002b:00007fc1280872e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 236.169316][ T6676] RAX: fffffffffffffe00 RBX: 00007fc1281a04c0 RCX: 00007fc128117db9 [ 236.177287][ T6676] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fc1281a04c8 ./strace-static-x86_64: Process 6677 attached ./strace-static-x86_64: Process 6679 attached [pid 6679] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6679] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 6680 attached [pid 6680] set_robust_list(0x5555564f35e0, 24 [pid 6679] <... prctl resumed>) = 0 [pid 6679] setpgid(0, 0) = 0 [pid 6680] <... set_robust_list resumed>) = 0 [pid 6679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6680] setpgid(0, 0 [pid 6679] <... openat resumed>) = 3 [pid 6680] <... setpgid resumed>) = 0 [pid 6678] +++ exited with 0 +++ [pid 6674] +++ exited with 0 +++ [pid 6680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6679] write(3, "1000", 4) = 4 [pid 6679] close(3 [pid 6680] <... openat resumed>) = 3 [pid 6679] <... close resumed>) = 0 [pid 6679] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6680] write(3, "1000", 4 [pid 6679] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6680] <... write resumed>) = 4 [pid 6679] <... mmap resumed>) = 0x7fc1280a9000 [pid 6680] close(3 [pid 6679] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6680] <... close resumed>) = 0 [pid 6679] <... mprotect resumed>) = 0 [pid 6680] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6679] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6680] <... futex resumed>) = 0 [pid 6680] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6679] <... clone resumed>, parent_tid=[6681], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6681 [pid 6680] <... mmap resumed>) = 0x7fc1280a9000 [pid 6679] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6680] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6679] <... futex resumed>) = 0 [pid 6680] <... mprotect resumed>) = 0 [pid 6679] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6680] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6682], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6682 [pid 6680] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6680] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6681 attached [pid 6681] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6681] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6681] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6679] <... futex resumed>) = 0 [pid 6679] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6679] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6681] <... futex resumed>) = 1 [pid 6681] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8) = 0 [pid 6681] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6679] <... futex resumed>) = 0 [pid 6679] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6679] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6681] <... futex resumed>) = 1 [pid 6681] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28) = 0 [pid 6681] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6679] <... futex resumed>) = 0 [pid 6679] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6679] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6681] <... futex resumed>) = 1 [pid 6681] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1) = 0 [pid 6681] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6682 attached [pid 6679] <... futex resumed>) = 0 [pid 6679] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6679] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6682] set_robust_list(0x7fc1280c99e0, 24 [pid 6681] <... futex resumed>) = 1 [pid 6681] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6682] <... set_robust_list resumed>) = 0 [pid 6682] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6682] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6680] <... futex resumed>) = 0 [pid 6682] <... futex resumed>) = 1 [pid 6680] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6682] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6680] <... futex resumed>) = 0 [pid 6682] <... setsockopt resumed>) = 0 [pid 6680] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6682] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6680] <... futex resumed>) = 0 [pid 6682] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6680] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6682] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6680] <... futex resumed>) = 0 [pid 6682] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6680] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6682] <... futex resumed>) = 0 [pid 6680] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6682] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6680] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6682] <... setsockopt resumed>) = 0 [pid 6680] <... futex resumed>) = 0 [pid 6682] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6680] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6682] <... futex resumed>) = 0 [pid 6680] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6682] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6680] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6682] <... sendto resumed>) = 1 [pid 6680] <... futex resumed>) = 0 [pid 6682] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6680] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6682] <... futex resumed>) = 0 [pid 6680] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6682] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6680] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6682] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6680] <... futex resumed>) = 0 [pid 6682] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6680] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6682] <... futex resumed>) = 0 [pid 6680] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6682] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6680] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6682] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6680] <... futex resumed>) = 0 [pid 6682] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6681] <... sendto resumed>) = 1 [pid 6680] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6682] <... openat resumed>) = 4 [pid 6681] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6682] write(4, "5", 1) = 1 [pid 6681] <... futex resumed>) = 1 [pid 6679] <... futex resumed>) = 0 [pid 6682] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6681] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6679] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6682] <... setsockopt resumed>) = 0 [pid 6681] <... sendto resumed>) = 1 [pid 6679] <... futex resumed>) = 0 [pid 6682] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6681] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6679] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6681] <... futex resumed>) = 0 [pid 6679] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6681] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6679] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6681] <... openat resumed>) = 4 [pid 6679] <... futex resumed>) = 0 [pid 6681] write(4, "5", 1 [pid 6679] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6681] <... write resumed>) = 1 [pid 6681] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6681] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6679] <... futex resumed>) = 0 [pid 6681] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6679] exit_group(0 [pid 6681] <... futex resumed>) = ? [pid 6679] <... exit_group resumed>) = ? [pid 6681] +++ exited with 0 +++ [pid 6679] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6679, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 6677] set_robust_list(0x5555564f35e0, 24 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6680] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6674, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6680] exit_group(0 [pid 6677] <... set_robust_list resumed>) = 0 [pid 6680] <... exit_group resumed>) = ? [pid 6677] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6677] <... prctl resumed>) = 0 [pid 6677] setpgid(0, 0) = 0 [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6683 [pid 3615] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6684 [pid 6677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6677] write(3, "1000", 4./strace-static-x86_64: Process 6684 attached ) = 4 [pid 6677] close(3) = 0 [ 236.185275][ T6676] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 236.193243][ T6676] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc1280872f0 [ 236.201214][ T6676] R13: 00007fc1281a04c8 R14: 0100000000000000 R15: 0000000000000001 [ 236.209210][ T6676] [ 236.223802][ T6682] CPU: 1 PID: 6682 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 236.234361][ T6682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 236.244450][ T6682] Call Trace: [ 236.247745][ T6682] [ 236.250689][ T6682] dump_stack_lvl+0xcd/0x134 [ 236.255319][ T6682] should_fail.cold+0x5/0xa [ 236.259857][ T6682] get_futex_key+0x5b2/0x1c50 [ 236.264563][ T6682] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 236.270584][ T6682] ? futex_setup_timer+0xf0/0xf0 [ 236.275555][ T6682] futex_wake+0xe4/0x490 [ 236.279832][ T6682] ? futex_wake_mark+0x1a0/0x1a0 [ 236.284794][ T6682] ? ptrace_stop.part.0+0x5ec/0xa80 [ 236.290018][ T6682] ? do_raw_spin_lock+0x120/0x2a0 [ 236.295071][ T6682] ? rwlock_bug.part.0+0x90/0x90 [ 236.300029][ T6682] ? _raw_spin_lock_irq+0x41/0x50 [ 236.305086][ T6682] do_futex+0x266/0x300 [ 236.309267][ T6682] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 236.315187][ T6682] ? find_held_lock+0x2d/0x110 [ 236.320004][ T6682] __x64_sys_futex+0x1b0/0x4a0 [ 236.324801][ T6682] ? do_futex+0x300/0x300 [ 236.329153][ T6682] ? _raw_spin_unlock_irq+0x1f/0x40 [ 236.334382][ T6682] ? lockdep_hardirqs_on+0x79/0x100 [ 236.339617][ T6682] ? _raw_spin_unlock_irq+0x2a/0x40 [ 236.344848][ T6682] ? ptrace_notify+0xfa/0x140 [ 236.349555][ T6682] do_syscall_64+0x35/0xb0 [ 236.354003][ T6682] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 236.359929][ T6682] RIP: 0033:0x7fc128117db9 [ 236.364362][ T6682] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [pid 6677] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6684] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6684] setpgid(0, 0) = 0 [pid 6684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6684] write(3, "1000", 4) = 4 [pid 6684] close(3) = 0 [pid 6684] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6684] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6684] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6684] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6685], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6685 [pid 6684] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6684] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6685 attached [pid 6685] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6685] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6685] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6684] <... futex resumed>) = 0 [pid 6685] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6684] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6685] <... setsockopt resumed>) = 0 [pid 6684] <... futex resumed>) = 0 [pid 6685] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6684] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6685] <... futex resumed>) = 0 [pid 6684] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6685] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6684] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6685] <... setsockopt resumed>) = 0 [pid 6684] <... futex resumed>) = 0 [pid 6685] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6684] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6685] <... futex resumed>) = 0 [pid 6684] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6685] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6684] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6685] <... setsockopt resumed>) = 0 [pid 6684] <... futex resumed>) = 0 [pid 6685] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6684] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6685] <... futex resumed>) = 0 [pid 6684] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6685] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6684] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6685] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6684] <... futex resumed>) = 0 [pid 6685] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6684] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6685] <... sendto resumed>) = 1 [pid 6685] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6684] <... futex resumed>) = 0 [pid 6685] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6684] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6685] <... sendto resumed>) = 1 [pid 6684] <... futex resumed>) = 0 [pid 6685] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6684] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6685] <... futex resumed>) = 0 [pid 6684] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6685] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6684] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6685] <... openat resumed>) = 4 [pid 6684] <... futex resumed>) = 0 [pid 6685] write(4, "5", 1 [pid 6684] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6685] <... write resumed>) = 1 [pid 6685] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6685] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6684] <... futex resumed>) = 0 [pid 6685] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6684] exit_group(0 [pid 6685] <... futex resumed>) = ? [pid 6684] <... exit_group resumed>) = ? [pid 6685] +++ exited with 0 +++ [pid 6684] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6684, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6686 ./strace-static-x86_64: Process 6686 attached [pid 6686] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6686] setpgid(0, 0) = 0 [pid 6686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6686] write(3, "1000", 4) = 4 [pid 6686] close(3) = 0 [pid 6686] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6686] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6686] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6686] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6687], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6687 [pid 6686] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6686] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6687 attached [pid 6687] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6687] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6687] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6686] <... futex resumed>) = 0 [pid 6687] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6686] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6687] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6686] <... futex resumed>) = 0 [pid 6687] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6686] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6687] <... setsockopt resumed>) = 0 [pid 6687] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6686] <... futex resumed>) = 0 [pid 6687] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6686] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6687] <... setsockopt resumed>) = 0 [pid 6686] <... futex resumed>) = 0 [pid 6687] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6686] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6687] <... futex resumed>) = 0 [pid 6686] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6687] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6686] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6687] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6686] <... futex resumed>) = 0 [pid 6687] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6686] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6687] <... setsockopt resumed>) = 0 [pid 6687] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6686] <... futex resumed>) = 0 [pid 6687] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6686] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6687] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6686] <... futex resumed>) = 0 [pid 6687] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6686] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6687] <... sendto resumed>) = 1 [pid 6687] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6686] <... futex resumed>) = 0 [pid 6687] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6686] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6687] <... sendto resumed>) = 1 [pid 6686] <... futex resumed>) = 0 [pid 6687] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6686] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6687] <... futex resumed>) = 0 [pid 6686] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6687] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6686] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6687] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6686] <... futex resumed>) = 0 [pid 6687] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6686] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6687] <... openat resumed>) = 4 [pid 6687] write(4, "5", 1) = 1 [pid 6687] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6687] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6686] <... futex resumed>) = 0 [pid 6687] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6686] exit_group(0 [pid 6687] <... futex resumed>) = ? [pid 6686] <... exit_group resumed>) = ? [pid 6687] +++ exited with 0 +++ [pid 6686] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6686, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6688 ./strace-static-x86_64: Process 6688 attached [pid 6688] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6688] setpgid(0, 0) = 0 [pid 6688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6688] write(3, "1000", 4) = 4 [pid 6688] close(3) = 0 [pid 6688] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6688] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6688] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6688] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6689], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6689 [pid 6688] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6688] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6689 attached [pid 6689] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6689] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6689] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6688] <... futex resumed>) = 0 [pid 6689] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6688] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6689] <... setsockopt resumed>) = 0 [pid 6688] <... futex resumed>) = 0 [pid 6689] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6688] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6689] <... futex resumed>) = 0 [pid 6688] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6689] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6688] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6689] <... setsockopt resumed>) = 0 [pid 6688] <... futex resumed>) = 0 [pid 6689] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6688] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6689] <... futex resumed>) = 0 [pid 6688] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6689] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6688] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6689] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6688] <... futex resumed>) = 0 [pid 6689] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6688] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6689] <... setsockopt resumed>) = 0 [pid 6689] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6688] <... futex resumed>) = 0 [pid 6689] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6688] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6689] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6688] <... futex resumed>) = 0 [pid 6689] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6688] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6689] <... sendto resumed>) = 1 [pid 6689] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6688] <... futex resumed>) = 0 [pid 6689] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6688] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6689] <... sendto resumed>) = 1 [pid 6688] <... futex resumed>) = 0 [pid 6689] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6688] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6689] <... futex resumed>) = 0 [pid 6688] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6689] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6688] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6689] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6688] <... futex resumed>) = 0 [pid 6689] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6688] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6689] <... openat resumed>) = 4 [pid 6689] write(4, "5", 1) = 1 [pid 6689] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6689] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6688] <... futex resumed>) = 0 [pid 6689] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6688] exit_group(0 [pid 6689] <... futex resumed>) = ? [pid 6688] <... exit_group resumed>) = ? [pid 6689] +++ exited with 0 +++ [pid 6688] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6688, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6690 ./strace-static-x86_64: Process 6690 attached [pid 6690] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6690] setpgid(0, 0) = 0 [pid 6690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6690] write(3, "1000", 4) = 4 [pid 6690] close(3) = 0 [pid 6690] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6690] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6690] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6690] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6691], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6691 [pid 6690] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6690] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6691 attached [pid 6691] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6691] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6691] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6690] <... futex resumed>) = 0 [pid 6691] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6690] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6691] <... setsockopt resumed>) = 0 [pid 6690] <... futex resumed>) = 0 [pid 6691] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6690] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6691] <... futex resumed>) = 0 [pid 6690] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6691] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6690] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6691] <... setsockopt resumed>) = 0 [pid 6690] <... futex resumed>) = 0 [pid 6691] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6690] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6691] <... futex resumed>) = 0 [pid 6690] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6691] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6690] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6691] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6690] <... futex resumed>) = 0 [pid 6691] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6690] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6691] <... setsockopt resumed>) = 0 [pid 6691] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6690] <... futex resumed>) = 0 [pid 6691] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6690] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6691] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6690] <... futex resumed>) = 0 [pid 6691] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6690] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6691] <... sendto resumed>) = 1 [pid 6691] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6690] <... futex resumed>) = 0 [pid 6691] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6690] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6691] <... sendto resumed>) = 1 [pid 6690] <... futex resumed>) = 0 [pid 6691] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6690] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6691] <... futex resumed>) = 0 [pid 6690] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6691] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6690] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6691] <... openat resumed>) = 4 [pid 6690] <... futex resumed>) = 0 [pid 6691] write(4, "5", 1 [pid 6690] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6691] <... write resumed>) = 1 [pid 6691] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6691] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6690] <... futex resumed>) = 0 [pid 6691] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6690] exit_group(0 [pid 6691] <... futex resumed>) = ? [pid 6690] <... exit_group resumed>) = ? [pid 6691] +++ exited with 0 +++ [pid 6690] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6690, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6692 ./strace-static-x86_64: Process 6692 attached [pid 6692] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6692] setpgid(0, 0) = 0 [pid 6692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6692] write(3, "1000", 4) = 4 [pid 6692] close(3) = 0 [pid 6692] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6692] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6692] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6692] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6693], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6693 [pid 6692] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6692] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6693 attached [pid 6693] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6693] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6693] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6692] <... futex resumed>) = 0 [pid 6693] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6692] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6693] <... setsockopt resumed>) = 0 [pid 6692] <... futex resumed>) = 0 [pid 6693] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6692] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6693] <... futex resumed>) = 0 [pid 6692] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6693] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6692] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6693] <... setsockopt resumed>) = 0 [pid 6692] <... futex resumed>) = 0 [pid 6693] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6692] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6693] <... futex resumed>) = 0 [pid 6692] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6693] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6692] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6693] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6692] <... futex resumed>) = 0 [pid 6693] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6692] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6693] <... setsockopt resumed>) = 0 [pid 6693] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6692] <... futex resumed>) = 0 [pid 6693] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6692] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6693] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6692] <... futex resumed>) = 0 [pid 6693] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6692] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6693] <... sendto resumed>) = 1 [pid 6693] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6692] <... futex resumed>) = 0 [pid 6693] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6692] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6693] <... sendto resumed>) = 1 [pid 6692] <... futex resumed>) = 0 [pid 6693] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6692] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6693] <... futex resumed>) = 0 [pid 6692] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6693] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6692] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6693] <... openat resumed>) = 4 [pid 6692] <... futex resumed>) = 0 [pid 6693] write(4, "5", 1 [pid 6692] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6693] <... write resumed>) = 1 [pid 6693] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6693] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6692] <... futex resumed>) = 0 [pid 6693] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6692] exit_group(0 [pid 6693] <... futex resumed>) = ? [pid 6692] <... exit_group resumed>) = ? [pid 6693] +++ exited with 0 +++ [pid 6692] +++ exited with 0 +++ [pid 6677] <... futex resumed>) = 0 [pid 6677] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6692, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6677] <... mmap resumed>) = 0x7fc1280a9000 [pid 6677] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 6683 attached ) = 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6683] set_robust_list(0x5555564f35e0, 24 [pid 6682] <... futex resumed>) = ? [pid 6677] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6666] <... futex resumed>) = ? [pid 3615] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6694 [pid 6683] <... set_robust_list resumed>) = 0 [pid 6682] +++ exited with 0 +++ [pid 6680] +++ exited with 0 +++ [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6680, si_uid=0, si_status=0, si_utime=0, si_stime=24} --- [pid 3608] restart_syscall(<... resuming interrupted clone ...> [pid 6666] +++ exited with 0 +++ [pid 6683] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6677] <... clone resumed>, parent_tid=[6695], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6695 [pid 6661] +++ exited with 0 +++ [pid 3608] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 6695 attached [pid 6683] <... prctl resumed>) = 0 [pid 6677] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6661, si_uid=0, si_status=0, si_utime=0, si_stime=32} --- ./strace-static-x86_64: Process 6694 attached [pid 6695] set_robust_list(0x7fc1280c99e0, 24 [pid 6683] setpgid(0, 0 [pid 6677] <... futex resumed>) = 0 [pid 6695] <... set_robust_list resumed>) = 0 [pid 6694] set_robust_list(0x5555564f35e0, 24 [pid 6683] <... setpgid resumed>) = 0 [pid 6677] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6695] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6694] <... set_robust_list resumed>) = 0 [pid 6683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6697 attached ./strace-static-x86_64: Process 6696 attached [pid 6695] <... socket resumed>) = 3 [pid 6694] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6683] <... openat resumed>) = 3 [pid 6676] +++ exited with 0 +++ [pid 6672] +++ exited with 0 +++ [pid 3608] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6696 [pid 6696] set_robust_list(0x5555564f35e0, 24 [pid 6695] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6694] <... prctl resumed>) = 0 [pid 6683] write(3, "1000", 4 [pid 3614] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6697 [pid 6697] set_robust_list(0x5555564f35e0, 24 [pid 6696] <... set_robust_list resumed>) = 0 [pid 6695] <... futex resumed>) = 1 [pid 6694] setpgid(0, 0 [pid 6683] <... write resumed>) = 4 [pid 6677] <... futex resumed>) = 0 [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6672, si_uid=0, si_status=0, si_utime=0, si_stime=30} --- [pid 6696] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6695] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6694] <... setpgid resumed>) = 0 [pid 6683] close(3 [pid 6677] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3610] restart_syscall(<... resuming interrupted clone ...> [pid 6696] <... prctl resumed>) = 0 [pid 6695] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6683] <... close resumed>) = 0 [pid 6677] <... futex resumed>) = 0 [pid 3610] <... restart_syscall resumed>) = 0 [pid 6697] <... set_robust_list resumed>) = 0 [pid 6696] setpgid(0, 0 [pid 6695] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6694] <... openat resumed>) = 3 [pid 6683] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [ 236.384031][ T6682] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 236.392473][ T6682] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 236.400476][ T6682] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 236.408472][ T6682] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 236.416550][ T6682] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 236.424549][ T6682] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 236.432574][ T6682] [pid 6677] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6696] <... setpgid resumed>) = 0 [pid 6695] <... setsockopt resumed>) = 0 [pid 6694] write(3, "1000", 4 [pid 6683] <... futex resumed>) = 0 [pid 6697] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6695] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6694] <... write resumed>) = 4 [pid 6683] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6698 attached [pid 6697] <... prctl resumed>) = 0 [pid 6696] <... openat resumed>) = 3 [pid 6695] <... futex resumed>) = 1 [pid 6694] close(3 [pid 6683] <... mmap resumed>) = 0x7fc1280a9000 [pid 6677] <... futex resumed>) = 0 [pid 6697] setpgid(0, 0 [pid 6696] write(3, "1000", 4 [pid 6695] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6694] <... close resumed>) = 0 [pid 6683] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6677] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3610] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6698 [pid 6697] <... setpgid resumed>) = 0 [pid 6696] <... write resumed>) = 4 [pid 6695] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6694] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6683] <... mprotect resumed>) = 0 [pid 6677] <... futex resumed>) = 0 [pid 6698] set_robust_list(0x5555564f35e0, 24 [pid 6697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6696] close(3 [pid 6695] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6694] <... futex resumed>) = 0 [pid 6683] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6677] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6698] <... set_robust_list resumed>) = 0 [pid 6697] <... openat resumed>) = 3 [pid 6696] <... close resumed>) = 0 [pid 6695] <... setsockopt resumed>) = 0 [pid 6694] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6698] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6697] write(3, "1000", 4 [pid 6696] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6695] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6694] <... mmap resumed>) = 0x7fc1280a9000 [pid 6683] <... clone resumed>, parent_tid=[6699], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6699 [pid 6698] <... prctl resumed>) = 0 [pid 6697] <... write resumed>) = 4 [pid 6696] <... futex resumed>) = 0 [pid 6695] <... futex resumed>) = 1 [pid 6694] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6683] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6677] <... futex resumed>) = 0 [pid 6698] setpgid(0, 0 [pid 6697] close(3 [pid 6696] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6695] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6694] <... mprotect resumed>) = 0 [pid 6683] <... futex resumed>) = 0 [pid 6677] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6698] <... setpgid resumed>) = 0 [pid 6697] <... close resumed>) = 0 [pid 6696] <... mmap resumed>) = 0x7fc1280a9000 [pid 6695] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6694] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6683] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6677] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6700 attached ./strace-static-x86_64: Process 6699 attached [pid 6698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6697] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6696] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6695] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6677] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6700] set_robust_list(0x7fc1280c99e0, 24 [pid 6699] set_robust_list(0x7fc1280c99e0, 24 [pid 6698] <... openat resumed>) = 3 [pid 6697] <... futex resumed>) = 0 [pid 6696] <... mprotect resumed>) = 0 [pid 6695] <... setsockopt resumed>) = 0 [pid 6694] <... clone resumed>, parent_tid=[6700], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6700 [pid 6700] <... set_robust_list resumed>) = 0 [pid 6699] <... set_robust_list resumed>) = 0 [pid 6698] write(3, "1000", 4 [pid 6697] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6696] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6695] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6694] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6699] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6698] <... write resumed>) = 4 [pid 6697] <... mmap resumed>) = 0x7fc1280a9000 [pid 6695] <... futex resumed>) = 1 [pid 6694] <... futex resumed>) = 0 [pid 6677] <... futex resumed>) = 0 [pid 6700] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6699] <... socket resumed>) = 3 [pid 6698] close(3 [pid 6697] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6696] <... clone resumed>, parent_tid=[6701], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6701 [pid 6695] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6694] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6677] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6700] <... socket resumed>) = 3 [pid 6699] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6698] <... close resumed>) = 0 [pid 6697] <... mprotect resumed>) = 0 [pid 6696] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6695] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6677] <... futex resumed>) = 0 [pid 6700] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6699] <... futex resumed>) = 1 [pid 6698] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6697] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6696] <... futex resumed>) = 0 [pid 6695] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6683] <... futex resumed>) = 0 [pid 6677] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6700] <... futex resumed>) = 1 [pid 6699] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6698] <... futex resumed>) = 0 [pid 6696] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6694] <... futex resumed>) = 0 [pid 6683] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6701 attached [pid 6697] <... clone resumed>, parent_tid=[6702], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6702 [pid 6694] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6683] <... futex resumed>) = 0 [pid 6701] set_robust_list(0x7fc1280c99e0, 24 [pid 6697] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6694] <... futex resumed>) = 0 [pid 6683] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6701] <... set_robust_list resumed>) = 0 [pid 6697] <... futex resumed>) = 0 [pid 6694] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6698] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6701] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6698] <... mmap resumed>) = 0x7fc1280a9000 [pid 6697] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6701] <... socket resumed>) = 3 [pid 6698] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6701] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6698] <... mprotect resumed>) = 0 [pid 6701] <... futex resumed>) = 1 [pid 6698] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6696] <... futex resumed>) = 0 [pid 6699] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6701] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6696] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6701] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6699] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6698] <... clone resumed>, parent_tid=[6703], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6703 [pid 6696] <... futex resumed>) = 0 [pid 6701] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6700] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6699] <... setsockopt resumed>) = 0 [pid 6698] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6696] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6695] <... sendto resumed>) = 1 [pid 6701] <... setsockopt resumed>) = 0 [pid 6700] <... setsockopt resumed>) = 0 [pid 6699] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6698] <... futex resumed>) = 0 [pid 6695] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6703 attached [pid 6701] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6700] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6699] <... futex resumed>) = 1 [pid 6698] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6695] <... futex resumed>) = 1 [pid 6683] <... futex resumed>) = 0 [pid 6677] <... futex resumed>) = 0 [pid 6703] set_robust_list(0x7fc1280c99e0, 24 [pid 6701] <... futex resumed>) = 1 [pid 6700] <... futex resumed>) = 1 [pid 6699] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6696] <... futex resumed>) = 0 [pid 6695] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6694] <... futex resumed>) = 0 [pid 6683] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6677] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6703] <... set_robust_list resumed>) = 0 [pid 6701] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6700] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6699] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6696] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6695] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6694] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6683] <... futex resumed>) = 0 [pid 6677] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6702 attached [pid 6703] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6701] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6700] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6699] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6696] <... futex resumed>) = 0 [pid 6695] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6694] <... futex resumed>) = 0 [pid 6683] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6677] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6703] <... socket resumed>) = 3 [pid 6702] set_robust_list(0x7fc1280c99e0, 24 [pid 6701] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6700] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6699] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6696] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6695] <... sendto resumed>) = 1 [pid 6694] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6703] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6702] <... set_robust_list resumed>) = 0 [pid 6701] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6700] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6699] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6695] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6703] <... futex resumed>) = 1 [pid 6702] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6701] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6700] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6699] <... futex resumed>) = 1 [pid 6698] <... futex resumed>) = 0 [pid 6695] <... futex resumed>) = 1 [pid 6683] <... futex resumed>) = 0 [pid 6677] <... futex resumed>) = 0 [pid 6703] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6702] <... socket resumed>) = 3 [pid 6701] <... futex resumed>) = 1 [pid 6700] <... futex resumed>) = 1 [pid 6699] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6698] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6696] <... futex resumed>) = 0 [pid 6695] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6694] <... futex resumed>) = 0 [pid 6683] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6677] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6703] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6701] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6698] <... futex resumed>) = 0 [pid 6696] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6694] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6683] <... futex resumed>) = 0 [pid 6703] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6701] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6698] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6696] <... futex resumed>) = 0 [pid 6694] <... futex resumed>) = 0 [pid 6683] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6700] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6699] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6695] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6677] <... futex resumed>) = 0 [pid 6702] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6703] <... setsockopt resumed>) = 0 [pid 6702] <... futex resumed>) = 1 [pid 6701] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6700] <... setsockopt resumed>) = 0 [pid 6699] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6697] <... futex resumed>) = 0 [pid 6696] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6695] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6694] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6677] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6703] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6702] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6701] <... setsockopt resumed>) = 0 [pid 6700] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6699] <... setsockopt resumed>) = 0 [pid 6697] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6695] <... openat resumed>) = 4 [pid 6694] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6703] <... futex resumed>) = 1 [pid 6702] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6701] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6700] <... futex resumed>) = 0 [pid 6699] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6698] <... futex resumed>) = 0 [pid 6697] <... futex resumed>) = 0 [pid 6695] write(4, "5", 1 [pid 6694] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6703] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6702] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6701] <... futex resumed>) = 1 [pid 6700] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6699] <... futex resumed>) = 1 [pid 6698] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6697] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6696] <... futex resumed>) = 0 [pid 6695] <... write resumed>) = 1 [pid 6694] <... futex resumed>) = 0 [pid 6683] <... futex resumed>) = 0 [pid 6703] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6702] <... setsockopt resumed>) = 0 [pid 6701] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6699] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6698] <... futex resumed>) = 0 [pid 6696] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6695] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6700] <... sendto resumed>) = 1 [pid 6694] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6683] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6703] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6702] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6701] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6698] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6696] <... futex resumed>) = 0 [pid 6683] <... futex resumed>) = 0 [pid 6703] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6702] <... futex resumed>) = 1 [pid 6701] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6700] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6699] <... sendto resumed>) = 1 [pid 6697] <... futex resumed>) = 0 [pid 6696] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6695] <... setsockopt resumed>) = 0 [pid 6683] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6703] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6702] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6701] <... sendto resumed>) = 1 [pid 6700] <... futex resumed>) = 1 [pid 6699] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6697] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6695] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6694] <... futex resumed>) = 0 [pid 6683] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6703] <... futex resumed>) = 1 [pid 6702] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6701] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6700] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6699] <... futex resumed>) = 0 [pid 6698] <... futex resumed>) = 0 [pid 6697] <... futex resumed>) = 0 [pid 6695] <... futex resumed>) = 1 [pid 6694] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6683] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6677] <... futex resumed>) = 0 [pid 6703] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6702] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6701] <... futex resumed>) = 1 [pid 6700] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6699] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6698] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6697] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6696] <... futex resumed>) = 0 [pid 6695] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6694] <... futex resumed>) = 0 [pid 6683] <... futex resumed>) = 0 [pid 6677] exit_group(0 [pid 6703] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6702] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6701] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6700] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6699] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6698] <... futex resumed>) = 0 [pid 6696] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6695] <... futex resumed>) = ? [pid 6694] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6683] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6677] <... exit_group resumed>) = ? [pid 6703] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6702] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6701] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6700] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6699] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6698] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6696] <... futex resumed>) = 0 [pid 6695] +++ exited with 0 +++ [pid 6683] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6703] <... setsockopt resumed>) = 0 [pid 6702] <... futex resumed>) = 1 [pid 6701] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6700] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6699] <... futex resumed>) = 0 [pid 6697] <... futex resumed>) = 0 [pid 6696] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6683] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6677] +++ exited with 0 +++ [pid 6703] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6702] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6701] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6700] <... futex resumed>) = 1 [pid 6699] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6697] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6694] <... futex resumed>) = 0 [pid 6683] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6677, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 6703] <... futex resumed>) = 1 [pid 6702] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6701] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6700] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6699] <... openat resumed>) = 4 [pid 6698] <... futex resumed>) = 0 [pid 6697] <... futex resumed>) = 0 [pid 6694] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6683] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6703] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6702] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6701] <... futex resumed>) = 1 [pid 6700] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6699] write(4, "5", 1 [pid 6698] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6697] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6696] <... futex resumed>) = 0 [pid 6694] <... futex resumed>) = 0 [pid 6703] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6702] <... setsockopt resumed>) = 0 [pid 6701] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6700] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6699] <... write resumed>) = 1 [pid 6698] <... futex resumed>) = 0 [pid 6696] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6694] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6703] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6702] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6701] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6700] <... openat resumed>) = 4 [pid 6699] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6698] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6696] <... futex resumed>) = 0 [pid 6703] <... sendto resumed>) = 1 [pid 6702] <... futex resumed>) = 1 [pid 6701] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6700] write(4, "5", 1 [pid 6699] <... setsockopt resumed>) = 0 [pid 6697] <... futex resumed>) = 0 [pid 6696] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6703] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6702] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6701] <... openat resumed>) = 4 [pid 6700] <... write resumed>) = 1 [pid 6699] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6697] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6703] <... futex resumed>) = 1 [pid 6702] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6701] write(4, "5", 1 [pid 6700] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6698] <... futex resumed>) = 0 [pid 6697] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6703] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6701] <... write resumed>) = 1 [pid 6698] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6697] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6703] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6701] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6698] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6704 [pid 6703] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6701] <... setsockopt resumed>) = 0 [pid 6698] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6703] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6701] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6704 attached [pid 6703] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6702] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6700] <... setsockopt resumed>) = 0 [pid 6703] <... futex resumed>) = 1 [pid 6698] <... futex resumed>) = 0 [pid 6703] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6698] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6703] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6698] <... futex resumed>) = 0 [pid 6703] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6698] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6703] <... openat resumed>) = 4 [pid 6703] write(4, "5", 1) = 1 [ 236.560907][ T6699] FAULT_INJECTION: forcing a failure. [ 236.560907][ T6699] name fail_futex, interval 1, probability 0, space 0, times 0 [ 236.572966][ T6701] FAULT_INJECTION: forcing a failure. [ 236.572966][ T6701] name fail_futex, interval 1, probability 0, space 0, times 0 [ 236.575615][ T6699] CPU: 0 PID: 6699 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 236.597181][ T6699] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [pid 6703] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6703] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6697] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6696] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6694] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6683] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6697] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6696] exit_group(0 [pid 6683] exit_group(0 [pid 6697] <... futex resumed>) = 0 [pid 6696] <... exit_group resumed>) = ? [pid 6683] <... exit_group resumed>) = ? [pid 6697] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc128088000 [pid 6697] mprotect(0x7fc128089000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6697] clone(child_stack=0x7fc1280a83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6705], tls=0x7fc1280a8700, child_tidptr=0x7fc1280a89d0) = 6705 [pid 6697] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6697] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6698] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6698] exit_group(0) = ? [ 236.597321][ T6703] FAULT_INJECTION: forcing a failure. [ 236.597321][ T6703] name fail_futex, interval 1, probability 0, space 0, times 0 [ 236.607334][ T6699] Call Trace: [ 236.607344][ T6699] [ 236.607353][ T6699] dump_stack_lvl+0xcd/0x134 [ 236.607385][ T6699] should_fail.cold+0x5/0xa [ 236.607413][ T6699] get_futex_key+0x5b2/0x1c50 [ 236.607438][ T6699] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 236.646252][ T6699] ? futex_setup_timer+0xf0/0xf0 [ 236.651223][ T6699] futex_wake+0xe4/0x490 [ 236.655495][ T6699] ? futex_wake_mark+0x1a0/0x1a0 [pid 6704] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6704] setpgid(0, 0) = 0 [pid 6704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 236.660467][ T6699] ? ptrace_stop.part.0+0x5ec/0xa80 [ 236.665689][ T6699] ? do_raw_spin_lock+0x120/0x2a0 [ 236.670723][ T6699] ? rwlock_bug.part.0+0x90/0x90 [ 236.675667][ T6699] ? _raw_spin_lock_irq+0x41/0x50 [ 236.680701][ T6699] do_futex+0x266/0x300 [ 236.684860][ T6699] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 236.690753][ T6699] ? find_held_lock+0x2d/0x110 [ 236.695534][ T6699] __x64_sys_futex+0x1b0/0x4a0 [ 236.700310][ T6699] ? do_futex+0x300/0x300 [ 236.704638][ T6699] ? _raw_spin_unlock_irq+0x1f/0x40 [ 236.709876][ T6699] ? lockdep_hardirqs_on+0x79/0x100 [ 236.715075][ T6699] ? _raw_spin_unlock_irq+0x2a/0x40 [ 236.720277][ T6699] ? ptrace_notify+0xfa/0x140 [ 236.724956][ T6699] do_syscall_64+0x35/0xb0 [ 236.729372][ T6699] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 236.735268][ T6699] RIP: 0033:0x7fc128117db9 [ 236.739680][ T6699] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [pid 6704] write(3, "1000", 4 [ 236.759287][ T6699] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 236.767718][ T6699] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 236.775786][ T6699] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 236.783756][ T6699] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 236.791726][ T6699] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 236.799700][ T6699] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 236.807769][ T6699] [pid 6700] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6697] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6694] exit_group(0 [pid 6704] <... write resumed>) = 4 [pid 6702] <... sendto resumed>) = 1 [pid 6694] <... exit_group resumed>) = ? [pid 6704] close(3) = 0 [pid 6704] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6704] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6704] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6704] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6706], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6706 [pid 6704] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6704] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6706 attached [pid 6706] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6706] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6706] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6704] <... futex resumed>) = 0 [pid 6706] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6704] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6706] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6704] <... futex resumed>) = 0 [pid 6706] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6704] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6706] <... setsockopt resumed>) = 0 [pid 6706] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6704] <... futex resumed>) = 0 [pid 6706] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [ 236.816692][ T6701] CPU: 0 PID: 6701 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 236.817661][ T6700] FAULT_INJECTION: forcing a failure. [ 236.817661][ T6700] name fail_futex, interval 1, probability 0, space 0, times 0 [ 236.827208][ T6701] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 236.827224][ T6701] Call Trace: [ 236.827232][ T6701] [ 236.827240][ T6701] dump_stack_lvl+0xcd/0x134 [ 236.827271][ T6701] should_fail.cold+0x5/0xa [ 236.827299][ T6701] get_futex_key+0x5b2/0x1c50 [ 236.827324][ T6701] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 236.827355][ T6701] ? futex_setup_timer+0xf0/0xf0 [ 236.827389][ T6701] futex_wake+0xe4/0x490 [ 236.827417][ T6701] ? futex_wake_mark+0x1a0/0x1a0 [ 236.827441][ T6701] ? ptrace_stop.part.0+0x5ec/0xa80 [ 236.897859][ T6701] ? do_raw_spin_lock+0x120/0x2a0 [ 236.902942][ T6701] ? rwlock_bug.part.0+0x90/0x90 [ 236.907903][ T6701] ? _raw_spin_lock_irq+0x41/0x50 [ 236.912972][ T6701] do_futex+0x266/0x300 [ 236.917159][ T6701] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 236.923075][ T6701] ? find_held_lock+0x2d/0x110 [ 236.927864][ T6701] __x64_sys_futex+0x1b0/0x4a0 [ 236.932650][ T6701] ? do_futex+0x300/0x300 [ 236.936999][ T6701] ? _raw_spin_unlock_irq+0x1f/0x40 [ 236.942228][ T6701] ? lockdep_hardirqs_on+0x79/0x100 [ 236.947443][ T6701] ? _raw_spin_unlock_irq+0x2a/0x40 [ 236.952654][ T6701] ? ptrace_notify+0xfa/0x140 [ 236.957350][ T6701] do_syscall_64+0x35/0xb0 [ 236.962058][ T6701] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 236.967987][ T6701] RIP: 0033:0x7fc128117db9 [ 236.968423][ T6707] FAULT_INJECTION: forcing a failure. [ 236.968423][ T6707] name fail_futex, interval 1, probability 0, space 0, times 0 [ 236.972414][ T6701] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 236.972439][ T6701] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [pid 6704] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6706] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6704] <... futex resumed>) = 0 [pid 6706] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6704] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6706] <... setsockopt resumed>) = 0 [pid 6706] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6704] <... futex resumed>) = 0 [pid 6706] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6704] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6706] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6704] <... futex resumed>) = 0 [pid 6706] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6704] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6706] <... setsockopt resumed>) = 0 [pid 6706] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6704] <... futex resumed>) = 0 [pid 6706] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6704] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6706] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6704] <... futex resumed>) = 0 [pid 6706] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6704] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6706] <... sendto resumed>) = 1 [pid 6706] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6704] <... futex resumed>) = 0 [pid 6706] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6704] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6706] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6704] <... futex resumed>) = 0 [pid 6706] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6704] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6706] <... sendto resumed>) = 1 [pid 6706] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6704] <... futex resumed>) = 0 [pid 6706] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6704] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6706] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6704] <... futex resumed>) = 0 [pid 6706] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6704] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6706] <... openat resumed>) = 4 [pid 6706] write(4, "5", 1) = 1 [pid 6706] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6706] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6704] <... futex resumed>) = 0 [pid 6706] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6704] exit_group(0 [pid 6706] <... futex resumed>) = ? [pid 6704] <... exit_group resumed>) = ? [pid 6706] +++ exited with 0 +++ [pid 6704] +++ exited with 0 +++ [pid 6697] futex(0x7fc1281a04cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6697] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc128067000 [pid 6697] mprotect(0x7fc128068000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6697] clone(child_stack=0x7fc1280873f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6707], tls=0x7fc128087700, child_tidptr=0x7fc1280879d0) = 6707 [pid 6697] futex(0x7fc1281a04c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6697] futex(0x7fc1281a04cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6707 attached [pid 6707] set_robust_list(0x7fc1280879e0, 24) = 0 [pid 6707] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR) = 4 [pid 6707] write(4, "5", 1) = 1 [pid 6707] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6707] futex(0x7fc1281a04cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6697] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 237.013435][ T6701] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 237.021427][ T6701] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 237.029412][ T6701] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 237.037393][ T6701] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 237.045372][ T6701] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 237.053367][ T6701] [ 237.057848][ T6700] CPU: 1 PID: 6700 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 237.068383][ T6700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 237.078615][ T6700] Call Trace: [ 237.081895][ T6700] [ 237.084828][ T6700] dump_stack_lvl+0xcd/0x134 [ 237.089432][ T6700] should_fail.cold+0x5/0xa [ 237.093953][ T6700] get_futex_key+0x5b2/0x1c50 [ 237.098637][ T6700] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 237.104632][ T6700] ? futex_setup_timer+0xf0/0xf0 [ 237.109599][ T6700] futex_wake+0xe4/0x490 [ 237.113857][ T6700] ? futex_wake_mark+0x1a0/0x1a0 [ 237.118804][ T6700] ? ptrace_stop.part.0+0x5ec/0xa80 [ 237.124010][ T6700] ? do_raw_spin_lock+0x120/0x2a0 [ 237.129045][ T6700] ? rwlock_bug.part.0+0x90/0x90 [ 237.133989][ T6700] ? _raw_spin_lock_irq+0x41/0x50 [ 237.139030][ T6700] do_futex+0x266/0x300 [ 237.143193][ T6700] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 237.149097][ T6700] ? find_held_lock+0x2d/0x110 [ 237.153939][ T6700] __x64_sys_futex+0x1b0/0x4a0 [ 237.158720][ T6700] ? do_futex+0x300/0x300 [ 237.163056][ T6700] ? _raw_spin_unlock_irq+0x1f/0x40 [ 237.168269][ T6700] ? lockdep_hardirqs_on+0x79/0x100 [ 237.173476][ T6700] ? _raw_spin_unlock_irq+0x2a/0x40 [ 237.178689][ T6700] ? ptrace_notify+0xfa/0x140 [ 237.183381][ T6700] do_syscall_64+0x35/0xb0 [ 237.187820][ T6700] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 237.193718][ T6700] RIP: 0033:0x7fc128117db9 [ 237.198134][ T6700] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 237.217763][ T6700] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 237.226176][ T6700] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 237.234149][ T6700] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 237.242116][ T6700] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 237.250085][ T6700] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 237.258054][ T6700] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [pid 6702] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6704, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 6705 attached [pid 6702] <... futex resumed>) = 0 [ 237.266064][ T6700] [ 237.269144][ T6703] CPU: 0 PID: 6703 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 237.279670][ T6703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 237.289735][ T6703] Call Trace: [ 237.293027][ T6703] [ 237.295975][ T6703] dump_stack_lvl+0xcd/0x134 [ 237.300604][ T6703] should_fail.cold+0x5/0xa [ 237.305136][ T6703] get_futex_key+0x5b2/0x1c50 [ 237.309838][ T6703] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 237.315843][ T6703] ? futex_setup_timer+0xf0/0xf0 [ 237.320898][ T6703] futex_wake+0xe4/0x490 [ 237.325157][ T6703] ? futex_wake_mark+0x1a0/0x1a0 [ 237.330109][ T6703] ? ptrace_stop.part.0+0x5ec/0xa80 [ 237.335326][ T6703] ? do_raw_spin_lock+0x120/0x2a0 [ 237.340364][ T6703] ? rwlock_bug.part.0+0x90/0x90 [ 237.345319][ T6703] ? _raw_spin_lock_irq+0x41/0x50 [ 237.350374][ T6703] do_futex+0x266/0x300 [ 237.354547][ T6703] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 237.360449][ T6703] ? find_held_lock+0x2d/0x110 [ 237.365234][ T6703] __x64_sys_futex+0x1b0/0x4a0 [ 237.370015][ T6703] ? do_futex+0x300/0x300 [ 237.374354][ T6703] ? _raw_spin_unlock_irq+0x1f/0x40 [ 237.379574][ T6703] ? lockdep_hardirqs_on+0x79/0x100 [ 237.384785][ T6703] ? _raw_spin_unlock_irq+0x2a/0x40 [ 237.390006][ T6703] ? ptrace_notify+0xfa/0x140 [ 237.394705][ T6703] do_syscall_64+0x35/0xb0 [ 237.399132][ T6703] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 237.405043][ T6703] RIP: 0033:0x7fc128117db9 [ 237.409490][ T6703] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 237.429115][ T6703] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 237.437549][ T6703] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 237.445535][ T6703] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 237.453518][ T6703] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 237.461505][ T6703] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 237.469486][ T6703] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 237.477486][ T6703] [ 237.480895][ T6707] CPU: 1 PID: 6707 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 237.491415][ T6707] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 237.501473][ T6707] Call Trace: [ 237.504767][ T6707] [ 237.507696][ T6707] dump_stack_lvl+0xcd/0x134 [ 237.512298][ T6707] should_fail.cold+0x5/0xa [ 237.516807][ T6707] get_futex_key+0x5b2/0x1c50 [ 237.521492][ T6707] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 237.527564][ T6707] ? futex_setup_timer+0xf0/0xf0 [ 237.532517][ T6707] futex_wake+0xe4/0x490 [ 237.536767][ T6707] ? futex_wake_mark+0x1a0/0x1a0 [ 237.541731][ T6707] ? ptrace_stop.part.0+0x5ec/0xa80 [ 237.546931][ T6707] ? do_raw_spin_lock+0x120/0x2a0 [ 237.551960][ T6707] ? rwlock_bug.part.0+0x90/0x90 [ 237.556920][ T6707] ? _raw_spin_lock_irq+0x41/0x50 [ 237.561977][ T6707] do_futex+0x266/0x300 [ 237.566147][ T6707] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 237.572059][ T6707] ? find_held_lock+0x2d/0x110 [ 237.576838][ T6707] __x64_sys_futex+0x1b0/0x4a0 [ 237.581609][ T6707] ? do_futex+0x300/0x300 [ 237.585941][ T6707] ? _raw_spin_unlock_irq+0x1f/0x40 [ 237.591160][ T6707] ? lockdep_hardirqs_on+0x79/0x100 [ 237.596363][ T6707] ? _raw_spin_unlock_irq+0x2a/0x40 [ 237.601568][ T6707] ? ptrace_notify+0xfa/0x140 [ 237.606249][ T6707] do_syscall_64+0x35/0xb0 [ 237.610767][ T6707] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 237.616686][ T6707] RIP: 0033:0x7fc128117db9 [ 237.621104][ T6707] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 237.640717][ T6707] RSP: 002b:00007fc1280872e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 237.649150][ T6707] RAX: ffffffffffffffda RBX: 00007fc1281a04c0 RCX: 00007fc128117db9 [ 237.657122][ T6707] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04cc [pid 6705] set_robust_list(0x7fc1280a89e0, 24 [pid 6702] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6701] <... futex resumed>) = ? [pid 6705] <... set_robust_list resumed>) = 0 [pid 6705] sendto(3, "\x01", 1, 0, NULL, 0) = -1 ECONNREFUSED (Connection refused) [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6705] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6697] exit_group(0./strace-static-x86_64: Process 6708 attached [pid 6705] <... futex resumed>) = ? [pid 6703] <... futex resumed>) = ? [pid 6702] <... futex resumed>) = ? [pid 6701] +++ exited with 0 +++ [pid 6707] <... futex resumed>) = ? [pid 6700] <... futex resumed>) = ? [pid 6699] <... futex resumed>) = ? [pid 6697] <... exit_group resumed>) = ? [pid 6696] +++ exited with 0 +++ [pid 6708] set_robust_list(0x5555564f35e0, 24 [pid 6705] +++ exited with 0 +++ [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6696, si_uid=0, si_status=0, si_utime=0, si_stime=27} --- [pid 6703] +++ exited with 0 +++ [pid 6702] +++ exited with 0 +++ [pid 6700] +++ exited with 0 +++ [pid 6698] +++ exited with 0 +++ [pid 6694] +++ exited with 0 +++ [pid 6708] <... set_robust_list resumed>) = 0 [pid 6699] +++ exited with 0 +++ [pid 6683] +++ exited with 0 +++ [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6694, si_uid=0, si_status=0, si_utime=0, si_stime=29} --- [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6698, si_uid=0, si_status=0, si_utime=0, si_stime=36} --- [pid 3607] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6708 [pid 6708] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6707] +++ exited with 0 +++ [pid 6697] +++ exited with 0 +++ [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6708] <... prctl resumed>) = 0 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6697, si_uid=0, si_status=0, si_utime=0, si_stime=33} --- [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6683, si_uid=0, si_status=0, si_utime=0, si_stime=25} --- [pid 6708] setpgid(0, 0) = 0 [pid 6708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3614] restart_syscall(<... resuming interrupted clone ...> [pid 3611] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 6709 attached [pid 6708] <... openat resumed>) = 3 [pid 3614] <... restart_syscall resumed>) = 0 [pid 3611] <... restart_syscall resumed>) = 0 [pid 3608] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6709 [pid 6709] set_robust_list(0x5555564f35e0, 24 [pid 6708] write(3, "1000", 4 [pid 6709] <... set_robust_list resumed>) = 0 [pid 6708] <... write resumed>) = 4 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6708] close(3 [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6711 attached ./strace-static-x86_64: Process 6710 attached [pid 6709] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6708] <... close resumed>) = 0 [pid 3615] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6710 [pid 6708] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6708] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6708] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6709] <... prctl resumed>) = 0 [pid 6708] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3614] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6712 [pid 3610] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6711 [pid 6710] set_robust_list(0x5555564f35e0, 24 [pid 6709] setpgid(0, 0 [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6713 [pid 6711] set_robust_list(0x5555564f35e0, 24 [pid 6710] <... set_robust_list resumed>) = 0 [pid 6709] <... setpgid resumed>) = 0 [pid 6708] <... clone resumed>, parent_tid=[6714], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6714 ./strace-static-x86_64: Process 6712 attached [pid 6709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6708] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6712] set_robust_list(0x5555564f35e0, 24 [pid 6711] <... set_robust_list resumed>) = 0 [pid 6710] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6709] <... openat resumed>) = 3 [pid 6708] <... futex resumed>) = 0 [pid 6712] <... set_robust_list resumed>) = 0 [pid 6711] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6710] <... prctl resumed>) = 0 [pid 6709] write(3, "1000", 4 [pid 6708] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6713 attached [pid 6712] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6711] <... prctl resumed>) = 0 [pid 6710] setpgid(0, 0 [pid 6709] <... write resumed>) = 4 ./strace-static-x86_64: Process 6714 attached [pid 6713] set_robust_list(0x5555564f35e0, 24 [pid 6712] <... prctl resumed>) = 0 [pid 6711] setpgid(0, 0 [pid 6710] <... setpgid resumed>) = 0 [pid 6709] close(3 [pid 6714] set_robust_list(0x7fc1280c99e0, 24 [pid 6713] <... set_robust_list resumed>) = 0 [pid 6712] setpgid(0, 0 [pid 6711] <... setpgid resumed>) = 0 [pid 6709] <... close resumed>) = 0 [pid 6710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6714] <... set_robust_list resumed>) = 0 [pid 6712] <... setpgid resumed>) = 0 [pid 6711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6709] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6714] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6713] prctl(PR_SET_PDEATHSIG, SIGKILL [ 237.665091][ T6707] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 237.673059][ T6707] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280872f0 [ 237.681031][ T6707] R13: 00007fc1281a04c8 R14: 0100000000000000 R15: 0000000000000001 [ 237.689018][ T6707] [pid 6712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6710] <... openat resumed>) = 3 [pid 6709] <... futex resumed>) = 0 [pid 6714] <... socket resumed>) = 3 [pid 6713] <... prctl resumed>) = 0 [pid 6712] <... openat resumed>) = 3 [pid 6711] <... openat resumed>) = 3 [pid 6710] write(3, "1000", 4 [pid 6709] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6714] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6713] setpgid(0, 0 [pid 6712] write(3, "1000", 4 [pid 6711] write(3, "1000", 4 [pid 6710] <... write resumed>) = 4 [pid 6709] <... mmap resumed>) = 0x7fc1280a9000 [pid 6714] <... futex resumed>) = 1 [pid 6713] <... setpgid resumed>) = 0 [pid 6712] <... write resumed>) = 4 [pid 6711] <... write resumed>) = 4 [pid 6710] close(3 [pid 6709] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6708] <... futex resumed>) = 0 [pid 6714] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6712] close(3 [pid 6708] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6714] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6712] <... close resumed>) = 0 [pid 6708] <... futex resumed>) = 0 [pid 6714] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6712] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6711] close(3 [pid 6710] <... close resumed>) = 0 [pid 6709] <... mprotect resumed>) = 0 [pid 6708] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6714] <... setsockopt resumed>) = 0 [pid 6712] <... futex resumed>) = 0 [pid 6711] <... close resumed>) = 0 [pid 6710] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6709] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6714] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6713] <... openat resumed>) = 3 [pid 6712] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6711] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6710] <... futex resumed>) = 0 [pid 6714] <... futex resumed>) = 1 [pid 6713] write(3, "1000", 4 [pid 6712] <... mmap resumed>) = 0x7fc1280a9000 [pid 6711] <... futex resumed>) = 0 [pid 6710] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6708] <... futex resumed>) = 0 [pid 6714] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6713] <... write resumed>) = 4 [pid 6712] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6711] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6710] <... mmap resumed>) = 0x7fc1280a9000 [pid 6709] <... clone resumed>, parent_tid=[6715], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6715 [pid 6708] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6715 attached [pid 6714] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6713] close(3 [pid 6712] <... mprotect resumed>) = 0 [pid 6711] <... mmap resumed>) = 0x7fc1280a9000 [pid 6710] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6709] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6708] <... futex resumed>) = 0 [pid 6715] set_robust_list(0x7fc1280c99e0, 24 [pid 6714] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6713] <... close resumed>) = 0 [pid 6712] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6711] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6710] <... mprotect resumed>) = 0 [pid 6709] <... futex resumed>) = 0 [pid 6708] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6715] <... set_robust_list resumed>) = 0 [pid 6714] <... setsockopt resumed>) = 0 [pid 6713] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6711] <... mprotect resumed>) = 0 [pid 6710] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6709] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6715] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6714] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6713] <... futex resumed>) = 0 [pid 6712] <... clone resumed>, parent_tid=[6716], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6716 [pid 6711] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6715] <... socket resumed>) = 3 [pid 6714] <... futex resumed>) = 1 [pid 6713] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6712] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6708] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6718 attached ./strace-static-x86_64: Process 6716 attached [pid 6715] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6714] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6713] <... mmap resumed>) = 0x7fc1280a9000 [pid 6712] <... futex resumed>) = 0 [pid 6711] <... clone resumed>, parent_tid=[6718], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6718 [pid 6710] <... clone resumed>, parent_tid=[6717], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6717 [pid 6708] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6717 attached [pid 6718] set_robust_list(0x7fc1280c99e0, 24 [pid 6716] set_robust_list(0x7fc1280c99e0, 24 [pid 6715] <... futex resumed>) = 1 [pid 6714] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6713] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6712] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6711] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6710] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6709] <... futex resumed>) = 0 [pid 6708] <... futex resumed>) = 0 [pid 6718] <... set_robust_list resumed>) = 0 [pid 6717] set_robust_list(0x7fc1280c99e0, 24 [pid 6716] <... set_robust_list resumed>) = 0 [pid 6715] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6714] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6713] <... mprotect resumed>) = 0 [pid 6711] <... futex resumed>) = 0 [pid 6710] <... futex resumed>) = 0 [pid 6709] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6708] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6718] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6717] <... set_robust_list resumed>) = 0 [pid 6716] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6715] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6714] <... setsockopt resumed>) = 0 [pid 6713] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6711] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6710] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6709] <... futex resumed>) = 0 [pid 6718] <... socket resumed>) = 3 [pid 6717] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6716] <... socket resumed>) = 3 [pid 6715] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6714] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6709] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6718] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6717] <... socket resumed>) = 3 [pid 6716] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6715] <... setsockopt resumed>) = 0 [pid 6714] <... futex resumed>) = 1 [pid 6713] <... clone resumed>, parent_tid=[6719], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6719 [pid 6708] <... futex resumed>) = 0 [pid 6718] <... futex resumed>) = 1 [pid 6717] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6716] <... futex resumed>) = 1 [pid 6715] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6714] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6713] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6712] <... futex resumed>) = 0 [pid 6711] <... futex resumed>) = 0 [pid 6708] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6719 attached [pid 6718] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6717] <... futex resumed>) = 1 [pid 6716] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6715] <... futex resumed>) = 1 [pid 6714] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6713] <... futex resumed>) = 0 [pid 6712] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6711] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6710] <... futex resumed>) = 0 [pid 6709] <... futex resumed>) = 0 [pid 6708] <... futex resumed>) = 0 [pid 6719] set_robust_list(0x7fc1280c99e0, 24 [pid 6718] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6717] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6716] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6715] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6714] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6713] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6712] <... futex resumed>) = 0 [pid 6711] <... futex resumed>) = 0 [pid 6710] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6709] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6708] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6719] <... set_robust_list resumed>) = 0 [pid 6718] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6717] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6716] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6715] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6714] <... sendto resumed>) = 1 [pid 6712] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6711] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6710] <... futex resumed>) = 0 [pid 6709] <... futex resumed>) = 0 [pid 6719] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6718] <... setsockopt resumed>) = 0 [pid 6717] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6716] <... setsockopt resumed>) = 0 [pid 6715] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6714] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6710] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6709] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6719] <... socket resumed>) = 3 [pid 6718] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6717] <... setsockopt resumed>) = 0 [pid 6716] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6715] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6714] <... futex resumed>) = 1 [pid 6708] <... futex resumed>) = 0 [pid 6719] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6718] <... futex resumed>) = 1 [pid 6717] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6716] <... futex resumed>) = 1 [pid 6715] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6714] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6712] <... futex resumed>) = 0 [pid 6711] <... futex resumed>) = 0 [pid 6708] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6719] <... futex resumed>) = 1 [pid 6718] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6717] <... futex resumed>) = 1 [pid 6716] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6715] <... futex resumed>) = 1 [pid 6714] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6713] <... futex resumed>) = 0 [pid 6712] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6711] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6710] <... futex resumed>) = 0 [pid 6709] <... futex resumed>) = 0 [pid 6708] <... futex resumed>) = 0 [pid 6719] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6718] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6717] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6716] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6715] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6714] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6713] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6712] <... futex resumed>) = 0 [pid 6711] <... futex resumed>) = 0 [pid 6710] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6709] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6708] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6719] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6718] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6717] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6716] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6715] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6714] <... sendto resumed>) = 1 [pid 6713] <... futex resumed>) = 0 [pid 6712] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6711] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6710] <... futex resumed>) = 0 [pid 6709] <... futex resumed>) = 0 [pid 6719] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6718] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6717] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6716] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6715] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6714] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6713] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6710] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6709] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6719] <... setsockopt resumed>) = 0 [pid 6718] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6717] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6716] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6715] <... setsockopt resumed>) = 0 [pid 6714] <... futex resumed>) = 1 [pid 6708] <... futex resumed>) = 0 [pid 6719] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6718] <... futex resumed>) = 1 [pid 6717] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6716] <... futex resumed>) = 1 [pid 6715] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6714] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6712] <... futex resumed>) = 0 [pid 6711] <... futex resumed>) = 0 [pid 6708] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6719] <... futex resumed>) = 1 [pid 6718] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6717] <... futex resumed>) = 1 [pid 6716] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6715] <... futex resumed>) = 1 [pid 6714] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6713] <... futex resumed>) = 0 [pid 6712] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6711] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6710] <... futex resumed>) = 0 [pid 6709] <... futex resumed>) = 0 [pid 6708] <... futex resumed>) = 0 [pid 6719] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6718] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6717] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6716] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6715] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6714] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6713] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6712] <... futex resumed>) = 0 [pid 6711] <... futex resumed>) = 0 [pid 6710] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6709] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6708] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6719] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6718] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6717] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6716] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6715] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6714] <... openat resumed>) = 4 [pid 6713] <... futex resumed>) = 0 [pid 6712] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6711] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6710] <... futex resumed>) = 0 [pid 6709] <... futex resumed>) = 0 [pid 6719] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6718] <... setsockopt resumed>) = 0 [pid 6717] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6716] <... setsockopt resumed>) = 0 [pid 6715] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6714] write(4, "5", 1 [pid 6713] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6710] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6709] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6719] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6718] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6717] <... setsockopt resumed>) = 0 [pid 6716] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6715] <... sendto resumed>) = 1 [pid 6714] <... write resumed>) = 1 [pid 6719] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6718] <... futex resumed>) = 1 [pid 6717] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6716] <... futex resumed>) = 1 [pid 6715] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6714] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6712] <... futex resumed>) = 0 [pid 6711] <... futex resumed>) = 0 [pid 6719] <... futex resumed>) = 1 [pid 6718] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6717] <... futex resumed>) = 1 [pid 6716] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6715] <... futex resumed>) = 1 [pid 6714] <... setsockopt resumed>) = 0 [pid 6713] <... futex resumed>) = 0 [pid 6712] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6711] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6710] <... futex resumed>) = 0 [pid 6709] <... futex resumed>) = 0 [pid 6719] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6718] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6717] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6716] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6715] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6714] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6713] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6712] <... futex resumed>) = 0 [pid 6711] <... futex resumed>) = 0 [pid 6710] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6709] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6719] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6718] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6717] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6716] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6715] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6714] <... futex resumed>) = 1 [pid 6713] <... futex resumed>) = 0 [pid 6712] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6711] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6710] <... futex resumed>) = 0 [pid 6709] <... futex resumed>) = 0 [pid 6708] <... futex resumed>) = 0 [pid 6719] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6717] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6715] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6714] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6708] exit_group(0 [pid 6719] <... setsockopt resumed>) = 0 [pid 6718] <... sendto resumed>) = 1 [pid 6717] <... sendto resumed>) = 1 [pid 6716] <... sendto resumed>) = 1 [pid 6715] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6714] <... futex resumed>) = ? [pid 6713] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6710] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6709] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6708] <... exit_group resumed>) = ? [pid 6719] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6718] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6717] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6716] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6715] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6714] +++ exited with 0 +++ [pid 6713] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6710] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6709] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6708] +++ exited with 0 +++ [pid 6719] <... futex resumed>) = 0 [pid 6718] <... futex resumed>) = 1 [pid 6717] <... futex resumed>) = 0 [pid 6716] <... futex resumed>) = 1 [pid 6715] <... futex resumed>) = 0 [pid 6713] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6712] <... futex resumed>) = 0 [pid 6711] <... futex resumed>) = 0 [pid 6710] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6709] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6708, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6719] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6718] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6717] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6716] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6715] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6713] <... futex resumed>) = 0 [pid 6712] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6711] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6710] <... futex resumed>) = 0 [pid 6709] <... futex resumed>) = 0 [pid 6719] <... sendto resumed>) = 1 [pid 6718] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6717] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6716] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6715] <... openat resumed>) = 4 [pid 6713] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6712] <... futex resumed>) = 0 [pid 6711] <... futex resumed>) = 0 [pid 6710] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6709] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6719] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6718] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6717] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6716] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6715] write(4, "5", 1 [pid 6713] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6712] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6711] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6710] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6719] <... futex resumed>) = 0 [pid 6718] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6717] <... futex resumed>) = 0 [pid 6716] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6715] <... write resumed>) = 1 [pid 6713] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6710] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6719] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6718] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6717] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6716] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6715] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6713] <... futex resumed>) = 0 [pid 6710] <... futex resumed>) = 0 [pid 6719] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6718] <... futex resumed>) = 1 [pid 6717] <... openat resumed>) = 4 [pid 6716] <... futex resumed>) = 1 [pid 6715] <... setsockopt resumed>) = 0 [pid 6713] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6712] <... futex resumed>) = 0 [pid 6711] <... futex resumed>) = 0 [pid 6710] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6719] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6718] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6717] write(4, "5", 1 [pid 6716] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6715] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6713] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6712] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6711] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6719] <... futex resumed>) = 0 [pid 6718] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6717] <... write resumed>) = 1 [pid 6716] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6713] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6712] <... futex resumed>) = 0 [pid 6711] <... futex resumed>) = 0 [pid 6718] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6716] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6713] <... futex resumed>) = 0 [pid 6712] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6711] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6720 [pid 6718] <... openat resumed>) = 4 [pid 6716] <... openat resumed>) = 4 [pid 6713] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6719] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6718] write(4, "5", 1 [pid 6717] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6716] write(4, "5", 1./strace-static-x86_64: Process 6720 attached [pid 6719] <... openat resumed>) = 4 [pid 6718] <... write resumed>) = 1 [pid 6717] <... setsockopt resumed>) = 0 [pid 6716] <... write resumed>) = 1 [pid 6718] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6716] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6718] <... setsockopt resumed>) = 0 [pid 6716] <... setsockopt resumed>) = 0 [ 237.828692][ T6715] FAULT_INJECTION: forcing a failure. [ 237.828692][ T6715] name fail_futex, interval 1, probability 0, space 0, times 0 [ 237.844067][ T6715] CPU: 0 PID: 6715 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 237.847707][ T6718] FAULT_INJECTION: forcing a failure. [ 237.847707][ T6718] name fail_futex, interval 1, probability 0, space 0, times 0 [ 237.854586][ T6715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [pid 6718] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6716] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6710] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6709] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6709] exit_group(0) = ? [pid 6712] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6711] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6712] exit_group(0 [pid 6711] exit_group(0 [pid 6713] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6712] <... exit_group resumed>) = ? [pid 6711] <... exit_group resumed>) = ? [ 237.854603][ T6715] Call Trace: [ 237.854610][ T6715] [ 237.854619][ T6715] dump_stack_lvl+0xcd/0x134 [ 237.854652][ T6715] should_fail.cold+0x5/0xa [ 237.868167][ T6716] FAULT_INJECTION: forcing a failure. [ 237.868167][ T6716] name fail_futex, interval 1, probability 0, space 0, times 0 [ 237.877602][ T6715] get_futex_key+0x5b2/0x1c50 [ 237.877632][ T6715] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 237.877659][ T6715] ? futex_setup_timer+0xf0/0xf0 [ 237.877692][ T6715] futex_wake+0xe4/0x490 [pid 6719] write(4, "5", 1) = 1 [pid 6719] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [ 237.925532][ T6715] ? futex_wake_mark+0x1a0/0x1a0 [ 237.930489][ T6715] ? ptrace_stop.part.0+0x5ec/0xa80 [ 237.935711][ T6715] ? do_raw_spin_lock+0x120/0x2a0 [ 237.940750][ T6715] ? rwlock_bug.part.0+0x90/0x90 [ 237.945702][ T6715] ? _raw_spin_lock_irq+0x41/0x50 [ 237.950753][ T6715] do_futex+0x266/0x300 [ 237.954944][ T6715] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 237.960862][ T6715] ? find_held_lock+0x2d/0x110 [ 237.965654][ T6715] __x64_sys_futex+0x1b0/0x4a0 [ 237.970441][ T6715] ? do_futex+0x300/0x300 [pid 6719] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6713] exit_group(0) = ? [ 237.974781][ T6715] ? _raw_spin_unlock_irq+0x1f/0x40 [ 237.976273][ T6719] FAULT_INJECTION: forcing a failure. [ 237.976273][ T6719] name fail_futex, interval 1, probability 0, space 0, times 0 [ 237.979985][ T6715] ? lockdep_hardirqs_on+0x79/0x100 [ 237.980019][ T6715] ? _raw_spin_unlock_irq+0x2a/0x40 [ 237.980046][ T6715] ? ptrace_notify+0xfa/0x140 [ 238.007866][ T6715] do_syscall_64+0x35/0xb0 [ 238.012304][ T6715] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 238.018214][ T6715] RIP: 0033:0x7fc128117db9 [ 238.022643][ T6715] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 238.042366][ T6715] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 238.050795][ T6715] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 238.058779][ T6715] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 238.066765][ T6715] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 238.074757][ T6715] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 238.082741][ T6715] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 238.090739][ T6715] [ 238.093766][ T6718] CPU: 1 PID: 6718 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 238.104287][ T6718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 238.114357][ T6718] Call Trace: [ 238.117643][ T6718] [ 238.120583][ T6718] dump_stack_lvl+0xcd/0x134 [ 238.125193][ T6718] should_fail.cold+0x5/0xa [ 238.129730][ T6718] get_futex_key+0x5b2/0x1c50 [ 238.134423][ T6718] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 238.140414][ T6718] ? futex_setup_timer+0xf0/0xf0 [ 238.145369][ T6718] futex_wake+0xe4/0x490 [ 238.149637][ T6718] ? futex_wake_mark+0x1a0/0x1a0 [ 238.154591][ T6718] ? ptrace_stop.part.0+0x5ec/0xa80 [ 238.159804][ T6718] ? do_raw_spin_lock+0x120/0x2a0 [ 238.164843][ T6718] ? rwlock_bug.part.0+0x90/0x90 [ 238.169801][ T6718] ? _raw_spin_lock_irq+0x41/0x50 [ 238.174840][ T6718] do_futex+0x266/0x300 [ 238.179001][ T6718] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 238.184912][ T6718] ? find_held_lock+0x2d/0x110 [ 238.189700][ T6718] __x64_sys_futex+0x1b0/0x4a0 [ 238.194480][ T6718] ? do_futex+0x300/0x300 [ 238.198830][ T6718] ? _raw_spin_unlock_irq+0x1f/0x40 [ 238.204047][ T6718] ? lockdep_hardirqs_on+0x79/0x100 [ 238.209261][ T6718] ? _raw_spin_unlock_irq+0x2a/0x40 [ 238.214476][ T6718] ? ptrace_notify+0xfa/0x140 [ 238.219193][ T6718] do_syscall_64+0x35/0xb0 [ 238.223636][ T6718] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 238.229563][ T6718] RIP: 0033:0x7fc128117db9 [ 238.234009][ T6718] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 238.253639][ T6718] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 238.262070][ T6718] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 238.270040][ T6718] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 238.278010][ T6718] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 238.285982][ T6718] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 238.293954][ T6718] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 238.301955][ T6718] [ 238.307616][ T6717] FAULT_INJECTION: forcing a failure. [ 238.307616][ T6717] name fail_futex, interval 1, probability 0, space 0, times 0 [ 238.308833][ T6716] CPU: 1 PID: 6716 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 238.330936][ T6716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 238.341005][ T6716] Call Trace: [ 238.344292][ T6716] [ 238.347229][ T6716] dump_stack_lvl+0xcd/0x134 [ 238.351837][ T6716] should_fail.cold+0x5/0xa [ 238.356356][ T6716] get_futex_key+0x5b2/0x1c50 [ 238.361040][ T6716] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 238.367044][ T6716] ? futex_setup_timer+0xf0/0xf0 [ 238.371999][ T6716] futex_wake+0xe4/0x490 [ 238.376255][ T6716] ? futex_wake_mark+0x1a0/0x1a0 [ 238.381218][ T6716] ? ptrace_stop.part.0+0x5ec/0xa80 [ 238.386432][ T6716] ? do_raw_spin_lock+0x120/0x2a0 [ 238.391473][ T6716] ? rwlock_bug.part.0+0x90/0x90 [ 238.396417][ T6716] ? _raw_spin_lock_irq+0x41/0x50 [ 238.401483][ T6716] do_futex+0x266/0x300 [ 238.405664][ T6716] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 238.411566][ T6716] ? find_held_lock+0x2d/0x110 [ 238.416357][ T6716] __x64_sys_futex+0x1b0/0x4a0 [ 238.421133][ T6716] ? do_futex+0x300/0x300 [ 238.425471][ T6716] ? _raw_spin_unlock_irq+0x1f/0x40 [ 238.430704][ T6716] ? lockdep_hardirqs_on+0x79/0x100 [ 238.435915][ T6716] ? _raw_spin_unlock_irq+0x2a/0x40 [ 238.441139][ T6716] ? ptrace_notify+0xfa/0x140 [ 238.445829][ T6716] do_syscall_64+0x35/0xb0 [ 238.450255][ T6716] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 238.456160][ T6716] RIP: 0033:0x7fc128117db9 [ 238.460586][ T6716] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 238.480202][ T6716] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 238.488629][ T6716] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 238.496694][ T6716] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 238.504666][ T6716] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 238.512642][ T6716] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 238.520620][ T6716] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 238.528618][ T6716] [pid 6717] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6720] set_robust_list(0x5555564f35e0, 24 [pid 6710] exit_group(0) = ? [pid 6718] <... futex resumed>) = ? [pid 6718] +++ exited with 0 +++ [pid 6711] +++ exited with 0 +++ [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6711, si_uid=0, si_status=0, si_utime=0, si_stime=27} --- [pid 3610] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6721 ./strace-static-x86_64: Process 6721 attached [pid 6721] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6720] <... set_robust_list resumed>) = 0 [pid 6720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6720] setpgid(0, 0) = 0 [pid 6720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6720] write(3, "1000", 4) = 4 [pid 6721] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6720] close(3 [pid 6721] <... prctl resumed>) = 0 [pid 6720] <... close resumed>) = 0 [pid 6721] setpgid(0, 0 [pid 6720] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6721] <... setpgid resumed>) = 0 [pid 6720] <... futex resumed>) = 0 [ 238.531656][ T6719] CPU: 0 PID: 6719 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 238.542192][ T6719] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 238.552271][ T6719] Call Trace: [ 238.555566][ T6719] [ 238.558514][ T6719] dump_stack_lvl+0xcd/0x134 [ 238.563139][ T6719] should_fail.cold+0x5/0xa [ 238.567679][ T6719] get_futex_key+0x5b2/0x1c50 [ 238.572383][ T6719] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 238.578394][ T6719] ? futex_setup_timer+0xf0/0xf0 [ 238.583372][ T6719] futex_wake+0xe4/0x490 [ 238.587651][ T6719] ? futex_wake_mark+0x1a0/0x1a0 [ 238.592619][ T6719] ? ptrace_stop.part.0+0x5ec/0xa80 [ 238.597855][ T6719] ? do_raw_spin_lock+0x120/0x2a0 [ 238.602910][ T6719] ? rwlock_bug.part.0+0x90/0x90 [ 238.607870][ T6719] ? _raw_spin_lock_irq+0x41/0x50 [ 238.613019][ T6719] do_futex+0x266/0x300 [ 238.617203][ T6719] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 238.623156][ T6719] ? find_held_lock+0x2d/0x110 [ 238.627966][ T6719] __x64_sys_futex+0x1b0/0x4a0 [ 238.632769][ T6719] ? do_futex+0x300/0x300 [ 238.637128][ T6719] ? _raw_spin_unlock_irq+0x1f/0x40 [ 238.642365][ T6719] ? lockdep_hardirqs_on+0x79/0x100 [ 238.647590][ T6719] ? _raw_spin_unlock_irq+0x2a/0x40 [ 238.652829][ T6719] ? ptrace_notify+0xfa/0x140 [ 238.657535][ T6719] do_syscall_64+0x35/0xb0 [ 238.661982][ T6719] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 238.667908][ T6719] RIP: 0033:0x7fc128117db9 [ 238.670440][ T6723] FAULT_INJECTION: forcing a failure. [ 238.670440][ T6723] name fail_futex, interval 1, probability 0, space 0, times 0 [ 238.672410][ T6719] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 238.672436][ T6719] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 238.713228][ T6719] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 238.721224][ T6719] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [pid 6721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6720] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6721] <... openat resumed>) = 3 [pid 6720] <... mmap resumed>) = 0x7fc1280a9000 [pid 6721] write(3, "1000", 4 [pid 6720] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6721] <... write resumed>) = 4 [pid 6720] <... mprotect resumed>) = 0 [pid 6721] close(3 [pid 6720] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6716] <... futex resumed>) = ? [pid 6721] <... close resumed>) = 0 [pid 6716] +++ exited with 0 +++ [pid 6712] +++ exited with 0 +++ [pid 6721] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6720] <... clone resumed>, parent_tid=[6722], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6722 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6712, si_uid=0, si_status=0, si_utime=0, si_stime=28} --- [pid 6721] <... futex resumed>) = 0 [pid 6720] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6721] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6720] <... futex resumed>) = 0 [pid 6721] <... mmap resumed>) = 0x7fc1280a9000 [pid 6720] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6721] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6721] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6721] <... clone resumed>, parent_tid=[6723], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6723 [pid 3614] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6724 ./strace-static-x86_64: Process 6722 attached [pid 6721] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6722] set_robust_list(0x7fc1280c99e0, 24 [pid 6721] <... futex resumed>) = 0 [pid 6722] <... set_robust_list resumed>) = 0 [pid 6721] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6722] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6722] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6720] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6723 attached [pid 6722] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6720] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6723] set_robust_list(0x7fc1280c99e0, 24 [pid 6722] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6720] <... futex resumed>) = 0 [pid 6723] <... set_robust_list resumed>) = 0 [pid 6722] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6720] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6723] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6722] <... setsockopt resumed>) = 0 [pid 6723] <... socket resumed>) = 3 [pid 6722] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6723] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6722] <... futex resumed>) = 1 [pid 6720] <... futex resumed>) = 0 [pid 6723] <... futex resumed>) = 1 [pid 6722] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6721] <... futex resumed>) = 0 [pid 6720] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6723] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6722] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6721] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6720] <... futex resumed>) = 0 [pid 6723] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6722] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6721] <... futex resumed>) = 0 [pid 6720] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6723] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6722] <... setsockopt resumed>) = 0 [pid 6721] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6723] <... setsockopt resumed>) = 0 [pid 6722] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6723] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6722] <... futex resumed>) = 1 [pid 6720] <... futex resumed>) = 0 [pid 6723] <... futex resumed>) = 1 [pid 6722] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6721] <... futex resumed>) = 0 [pid 6720] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6723] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6722] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6721] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6720] <... futex resumed>) = 0 [pid 6723] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6722] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6721] <... futex resumed>) = 0 [pid 6720] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6723] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6722] <... setsockopt resumed>) = 0 [pid 6721] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6723] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6722] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6723] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6722] <... futex resumed>) = 1 [pid 6720] <... futex resumed>) = 0 [pid 6723] <... futex resumed>) = 1 [pid 6722] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6721] <... futex resumed>) = 0 [pid 6720] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6723] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6722] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6721] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6720] <... futex resumed>) = 0 [pid 6723] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6722] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6721] <... futex resumed>) = 0 [pid 6720] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6723] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6722] <... sendto resumed>) = 1 [pid 6721] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6723] <... setsockopt resumed>) = 0 [pid 6722] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6723] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6722] <... futex resumed>) = 1 [pid 6720] <... futex resumed>) = 0 [pid 6723] <... futex resumed>) = 1 [pid 6722] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6721] <... futex resumed>) = 0 [pid 6720] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6723] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6722] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6721] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6720] <... futex resumed>) = 0 [pid 6723] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6722] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6721] <... futex resumed>) = 0 [pid 6720] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6723] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6722] <... sendto resumed>) = 1 [pid 6721] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6723] <... sendto resumed>) = 1 [pid 6722] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6723] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6722] <... futex resumed>) = 1 [pid 6720] <... futex resumed>) = 0 [pid 6723] <... futex resumed>) = 1 [pid 6722] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6721] <... futex resumed>) = 0 [pid 6720] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6723] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6722] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6721] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6720] <... futex resumed>) = 0 [pid 6723] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6722] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6721] <... futex resumed>) = 0 [pid 6720] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6723] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6722] <... openat resumed>) = 4 [pid 6721] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6723] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6722] write(4, "5", 1 [pid 6723] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6722] <... write resumed>) = 1 [pid 6723] <... futex resumed>) = 1 [pid 6722] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6721] <... futex resumed>) = 0 [pid 6723] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6722] <... setsockopt resumed>) = 0 [pid 6721] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6723] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6722] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6721] <... futex resumed>) = 0 [pid 6723] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6722] <... futex resumed>) = 1 [pid 6721] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6720] <... futex resumed>) = 0 [pid 6723] <... openat resumed>) = 4 [pid 6722] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6720] exit_group(0 [pid 6723] write(4, "5", 1 [pid 6722] <... futex resumed>) = ? [pid 6720] <... exit_group resumed>) = ? [pid 6723] <... write resumed>) = 1 [pid 6722] +++ exited with 0 +++ [pid 6720] +++ exited with 0 +++ [pid 6723] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6720, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6723] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6725 ./strace-static-x86_64: Process 6725 attached [pid 6725] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6725] setpgid(0, 0) = 0 [pid 6725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6725] write(3, "1000", 4) = 4 [pid 6725] close(3) = 0 [pid 6725] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6725] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6725] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6725] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6726], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6726 [pid 6725] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6725] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6721] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6721] exit_group(0) = ? ./strace-static-x86_64: Process 6726 attached [pid 6726] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6726] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6726] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6725] <... futex resumed>) = 0 [pid 6726] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6725] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6726] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6725] <... futex resumed>) = 0 [pid 6726] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6725] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6726] <... setsockopt resumed>) = 0 [pid 6726] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6725] <... futex resumed>) = 0 [pid 6726] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6725] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6726] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6725] <... futex resumed>) = 0 [pid 6726] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6725] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6726] <... setsockopt resumed>) = 0 [pid 6726] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6725] <... futex resumed>) = 0 [pid 6726] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6725] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6726] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6725] <... futex resumed>) = 0 [pid 6726] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6725] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6726] <... setsockopt resumed>) = 0 [pid 6726] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6725] <... futex resumed>) = 0 [pid 6726] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6725] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6726] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6725] <... futex resumed>) = 0 [pid 6726] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6725] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6726] <... sendto resumed>) = 1 [pid 6726] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6725] <... futex resumed>) = 0 [pid 6726] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6725] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6726] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6725] <... futex resumed>) = 0 [pid 6726] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6725] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6726] <... sendto resumed>) = 1 [pid 6726] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6725] <... futex resumed>) = 0 [pid 6726] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6725] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6726] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6725] <... futex resumed>) = 0 [pid 6726] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [ 238.729209][ T6719] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 238.737199][ T6719] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 238.745209][ T6719] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 238.753220][ T6719] [ 238.759344][ T6717] CPU: 0 PID: 6717 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 238.769972][ T6717] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [pid 6725] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6726] <... openat resumed>) = 4 [pid 6726] write(4, "5", 1) = 1 [pid 6726] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6726] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6725] <... futex resumed>) = 0 [pid 6726] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6725] exit_group(0 [pid 6726] <... futex resumed>) = ? [pid 6725] <... exit_group resumed>) = ? [pid 6726] +++ exited with 0 +++ [pid 6725] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6725, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6727 ./strace-static-x86_64: Process 6727 attached [ 238.780059][ T6717] Call Trace: [ 238.783358][ T6717] [ 238.786345][ T6717] dump_stack_lvl+0xcd/0x134 [ 238.790972][ T6717] should_fail.cold+0x5/0xa [ 238.795515][ T6717] get_futex_key+0x5b2/0x1c50 [ 238.800228][ T6717] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 238.806245][ T6717] ? futex_setup_timer+0xf0/0xf0 [ 238.811389][ T6717] futex_wake+0xe4/0x490 [ 238.815665][ T6717] ? futex_wake_mark+0x1a0/0x1a0 [ 238.820618][ T6717] ? ptrace_stop.part.0+0x5ec/0xa80 [ 238.825840][ T6717] ? do_raw_spin_lock+0x120/0x2a0 [ 238.830895][ T6717] ? rwlock_bug.part.0+0x90/0x90 [ 238.835858][ T6717] ? _raw_spin_lock_irq+0x41/0x50 [ 238.840957][ T6717] do_futex+0x266/0x300 [ 238.845143][ T6717] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 238.851060][ T6717] ? find_held_lock+0x2d/0x110 [ 238.855966][ T6717] __x64_sys_futex+0x1b0/0x4a0 [ 238.860776][ T6717] ? do_futex+0x300/0x300 [ 238.865137][ T6717] ? _raw_spin_unlock_irq+0x1f/0x40 [ 238.870373][ T6717] ? lockdep_hardirqs_on+0x79/0x100 [ 238.875624][ T6717] ? _raw_spin_unlock_irq+0x2a/0x40 [ 238.880854][ T6717] ? ptrace_notify+0xfa/0x140 [ 238.885553][ T6717] do_syscall_64+0x35/0xb0 [ 238.890004][ T6717] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 238.895929][ T6717] RIP: 0033:0x7fc128117db9 [ 238.900361][ T6717] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 238.919989][ T6717] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [pid 6727] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6727] setpgid(0, 0) = 0 [pid 6727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6727] write(3, "1000", 4) = 4 [pid 6727] close(3) = 0 [pid 6727] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6727] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6727] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6727] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6728], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6728 [pid 6727] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6727] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6728 attached [pid 6728] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6728] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6728] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6727] <... futex resumed>) = 0 [pid 6728] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6727] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6728] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6727] <... futex resumed>) = 0 [pid 6728] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6727] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6728] <... setsockopt resumed>) = 0 [pid 6728] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6727] <... futex resumed>) = 0 [pid 6728] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6727] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6728] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6727] <... futex resumed>) = 0 [pid 6728] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6727] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6728] <... setsockopt resumed>) = 0 [pid 6728] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6727] <... futex resumed>) = 0 [pid 6728] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6727] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6728] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6727] <... futex resumed>) = 0 [pid 6728] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6727] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6728] <... setsockopt resumed>) = 0 [pid 6728] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6727] <... futex resumed>) = 0 [pid 6728] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6727] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6728] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6727] <... futex resumed>) = 0 [pid 6728] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6727] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6728] <... sendto resumed>) = 1 [pid 6728] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6727] <... futex resumed>) = 0 [pid 6728] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6727] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6728] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6727] <... futex resumed>) = 0 [pid 6728] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6727] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6728] <... sendto resumed>) = 1 [pid 6728] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6727] <... futex resumed>) = 0 [pid 6728] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6727] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6728] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6727] <... futex resumed>) = 0 [pid 6728] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6727] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6728] <... openat resumed>) = 4 [pid 6728] write(4, "5", 1) = 1 [pid 6728] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6728] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6727] <... futex resumed>) = 0 [pid 6728] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6727] exit_group(0 [pid 6728] <... futex resumed>) = ? [pid 6727] <... exit_group resumed>) = ? [pid 6728] +++ exited with 0 +++ [pid 6727] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6727, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6729 ./strace-static-x86_64: Process 6729 attached [pid 6729] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6729] setpgid(0, 0) = 0 [pid 6729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6729] write(3, "1000", 4) = 4 [pid 6729] close(3) = 0 [pid 6729] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6729] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6729] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6729] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6730], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6730 [pid 6729] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6729] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6730 attached [pid 6730] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6730] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6730] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6729] <... futex resumed>) = 0 [pid 6730] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6729] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6730] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6729] <... futex resumed>) = 0 [pid 6730] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6729] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6730] <... setsockopt resumed>) = 0 [pid 6730] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6729] <... futex resumed>) = 0 [pid 6730] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6729] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6730] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6729] <... futex resumed>) = 0 [pid 6730] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6729] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6730] <... setsockopt resumed>) = 0 [ 238.928426][ T6717] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 238.936424][ T6717] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 238.944421][ T6717] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 238.952411][ T6717] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 238.960397][ T6717] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 238.968411][ T6717] [ 238.971444][ T6723] CPU: 1 PID: 6723 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 238.981999][ T6723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 238.992057][ T6723] Call Trace: [ 238.995336][ T6723] [ 238.998271][ T6723] dump_stack_lvl+0xcd/0x134 [ 239.002878][ T6723] should_fail.cold+0x5/0xa [ 239.007391][ T6723] get_futex_key+0x5b2/0x1c50 [ 239.012071][ T6723] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 239.018058][ T6723] ? futex_setup_timer+0xf0/0xf0 [ 239.023010][ T6723] futex_wake+0xe4/0x490 [ 239.027259][ T6723] ? futex_wake_mark+0x1a0/0x1a0 [ 239.032201][ T6723] ? ptrace_stop.part.0+0x5ec/0xa80 [ 239.037419][ T6723] ? do_raw_spin_lock+0x120/0x2a0 [ 239.042451][ T6723] ? rwlock_bug.part.0+0x90/0x90 [ 239.047391][ T6723] ? _raw_spin_lock_irq+0x41/0x50 [ 239.052426][ T6723] do_futex+0x266/0x300 [ 239.056585][ T6723] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 239.062479][ T6723] ? find_held_lock+0x2d/0x110 [ 239.067258][ T6723] __x64_sys_futex+0x1b0/0x4a0 [ 239.072029][ T6723] ? do_futex+0x300/0x300 [ 239.076356][ T6723] ? _raw_spin_unlock_irq+0x1f/0x40 [ 239.081671][ T6723] ? lockdep_hardirqs_on+0x79/0x100 [ 239.086890][ T6723] ? _raw_spin_unlock_irq+0x2a/0x40 [ 239.092091][ T6723] ? ptrace_notify+0xfa/0x140 [ 239.096772][ T6723] do_syscall_64+0x35/0xb0 [ 239.101193][ T6723] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 239.107091][ T6723] RIP: 0033:0x7fc128117db9 [ 239.111506][ T6723] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 ./strace-static-x86_64: Process 6724 attached [pid 6730] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6719] <... futex resumed>) = ? [pid 6717] <... futex resumed>) = ? [pid 6715] <... futex resumed>) = ? [pid 6730] <... futex resumed>) = 0 [pid 6729] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6724] set_robust_list(0x5555564f35e0, 24 [pid 6723] <... futex resumed>) = ? [pid 6719] +++ exited with 0 +++ [pid 6717] +++ exited with 0 +++ [pid 6713] +++ exited with 0 +++ [pid 6710] +++ exited with 0 +++ [pid 6730] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6729] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6724] <... set_robust_list resumed>) = 0 [pid 6715] +++ exited with 0 +++ [pid 6709] +++ exited with 0 +++ [pid 6724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6724] setpgid(0, 0) = 0 [pid 6730] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6729] <... futex resumed>) = 0 [pid 6724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6710, si_uid=0, si_status=0, si_utime=0, si_stime=39} --- [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6713, si_uid=0, si_status=0, si_utime=0, si_stime=31} --- [pid 6730] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6729] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6724] <... openat resumed>) = 3 [pid 3615] restart_syscall(<... resuming interrupted clone ...> [pid 3611] restart_syscall(<... resuming interrupted clone ...> [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6709, si_uid=0, si_status=0, si_utime=0, si_stime=28} --- [pid 6730] <... setsockopt resumed>) = 0 [pid 6724] write(3, "1000", 4 [pid 3615] <... restart_syscall resumed>) = 0 [pid 3611] <... restart_syscall resumed>) = 0 [pid 3608] restart_syscall(<... resuming interrupted clone ...> [pid 6730] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6724] <... write resumed>) = 4 [pid 3608] <... restart_syscall resumed>) = 0 [pid 6730] <... futex resumed>) = 1 [pid 6729] <... futex resumed>) = 0 [pid 6724] close(3 [pid 6729] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6724] <... close resumed>) = 0 [pid 6724] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6729] <... futex resumed>) = 0 [pid 6724] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6729] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6730] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6724] <... mmap resumed>) = 0x7fc1280a9000 [pid 6723] +++ exited with 0 +++ [pid 6721] +++ exited with 0 +++ [pid 6724] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6721, si_uid=0, si_status=0, si_utime=0, si_stime=31} --- [pid 6724] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6732], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6732 [pid 6724] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6724] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6732 attached [pid 6732] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6732] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6732] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6724] <... futex resumed>) = 0 [pid 6724] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6724] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6732] <... futex resumed>) = 1 [pid 6732] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8) = 0 [pid 6732] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6724] <... futex resumed>) = 0 [pid 6724] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6724] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6732] <... futex resumed>) = 1 [pid 6732] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28) = -1 EADDRINUSE (Address already in use) [pid 6732] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6724] <... futex resumed>) = 0 [pid 6724] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6724] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6732] <... futex resumed>) = 1 [pid 6732] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1) = 0 [pid 6732] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6724] <... futex resumed>) = 0 [pid 6724] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6724] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6732] <... futex resumed>) = 1 [pid 6732] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 3615] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6731 [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6734 [pid 3610] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6735 [pid 3608] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6733 ./strace-static-x86_64: Process 6733 attached [pid 6733] set_robust_list(0x5555564f35e0, 24 [pid 6732] <... sendto resumed>) = 1 [pid 6733] <... set_robust_list resumed>) = 0 [pid 6732] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6735 attached [pid 6733] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6732] <... futex resumed>) = 1 [pid 6724] <... futex resumed>) = 0 [ 239.131131][ T6723] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 239.139574][ T6723] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 239.147556][ T6723] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 239.155529][ T6723] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 239.163506][ T6723] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 239.171593][ T6723] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 239.179598][ T6723] [pid 6735] set_robust_list(0x5555564f35e0, 24 [pid 6733] <... prctl resumed>) = 0 [pid 6732] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6730] <... sendto resumed>) = 1 [pid 6724] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6731 attached [pid 6735] <... set_robust_list resumed>) = 0 [pid 6733] setpgid(0, 0 [pid 6732] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6730] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6724] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6734 attached [pid 6735] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6733] <... setpgid resumed>) = 0 [pid 6732] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6730] <... futex resumed>) = 1 [pid 6729] <... futex resumed>) = 0 [pid 6724] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6735] <... prctl resumed>) = 0 [pid 6734] set_robust_list(0x5555564f35e0, 24 [pid 6733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6732] <... futex resumed>) = 0 [pid 6731] set_robust_list(0x5555564f35e0, 24 [pid 6730] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6729] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6724] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6735] setpgid(0, 0 [pid 6734] <... set_robust_list resumed>) = 0 [pid 6733] <... openat resumed>) = 3 [pid 6732] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6731] <... set_robust_list resumed>) = 0 [pid 6730] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6729] <... futex resumed>) = 0 [pid 6724] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6735] <... setpgid resumed>) = 0 [pid 6734] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6733] write(3, "1000", 4 [pid 6732] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6730] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6729] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6724] <... futex resumed>) = 0 [pid 6735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6734] <... prctl resumed>) = 0 [pid 6733] <... write resumed>) = 4 [pid 6732] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6731] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6730] <... sendto resumed>) = 1 [pid 6724] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6735] <... openat resumed>) = 3 [pid 6734] setpgid(0, 0 [pid 6733] close(3 [pid 6732] <... openat resumed>) = 4 [pid 6731] <... prctl resumed>) = 0 [pid 6730] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6735] write(3, "1000", 4 [pid 6734] <... setpgid resumed>) = 0 [pid 6733] <... close resumed>) = 0 [pid 6732] write(4, "5", 1 [pid 6731] setpgid(0, 0 [pid 6730] <... futex resumed>) = 1 [pid 6729] <... futex resumed>) = 0 [pid 6735] <... write resumed>) = 4 [pid 6734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6733] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6732] <... write resumed>) = 1 [pid 6731] <... setpgid resumed>) = 0 [pid 6730] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6729] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6735] close(3 [pid 6734] <... openat resumed>) = 3 [pid 6733] <... futex resumed>) = 0 [pid 6732] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6730] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6729] <... futex resumed>) = 0 [pid 6735] <... close resumed>) = 0 [pid 6734] write(3, "1000", 4 [pid 6733] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6732] <... setsockopt resumed>) = 0 [pid 6731] <... openat resumed>) = 3 [pid 6730] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6729] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6735] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6734] <... write resumed>) = 4 [pid 6733] <... mmap resumed>) = 0x7fc1280a9000 [pid 6732] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6731] write(3, "1000", 4 [pid 6730] <... openat resumed>) = 4 [pid 6735] <... futex resumed>) = 0 [pid 6734] close(3 [pid 6733] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6731] <... write resumed>) = 4 [pid 6730] write(4, "5", 1 [pid 6734] <... close resumed>) = 0 [pid 6731] close(3 [pid 6730] <... write resumed>) = 1 [pid 6734] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6731] <... close resumed>) = 0 [pid 6730] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6734] <... futex resumed>) = 0 [pid 6731] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6730] <... setsockopt resumed>) = 0 [pid 6734] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6731] <... futex resumed>) = 0 [pid 6730] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6734] <... mmap resumed>) = 0x7fc1280a9000 [pid 6731] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6730] <... futex resumed>) = 1 [pid 6729] <... futex resumed>) = 0 [pid 6734] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6731] <... mmap resumed>) = 0x7fc1280a9000 [pid 6730] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6729] exit_group(0 [pid 6734] <... mprotect resumed>) = 0 [pid 6731] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6730] <... futex resumed>) = ? [pid 6729] <... exit_group resumed>) = ? [pid 6734] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6731] <... mprotect resumed>) = 0 [pid 6730] +++ exited with 0 +++ [pid 6729] +++ exited with 0 +++ [pid 6731] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6729, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 6734] <... clone resumed>, parent_tid=[6736], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6736 [pid 6734] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6731] <... clone resumed>, parent_tid=[6737], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6737 [pid 6734] <... futex resumed>) = 0 [pid 6731] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6735] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6734] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6733] <... mprotect resumed>) = 0 [pid 6731] <... futex resumed>) = 0 [pid 6735] <... mmap resumed>) = 0x7fc1280a9000 [pid 6733] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6731] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6738 [pid 6735] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 6738 attached ) = 0 [pid 6733] <... clone resumed>, parent_tid=[6739], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6739 [pid 6738] set_robust_list(0x5555564f35e0, 24 [pid 6735] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6733] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6736 attached [pid 6738] <... set_robust_list resumed>) = 0 [pid 6733] <... futex resumed>) = 0 [pid 6735] <... clone resumed>, parent_tid=[6740], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6740 [pid 6733] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6738] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6736] set_robust_list(0x7fc1280c99e0, 24 [pid 6735] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6739 attached [pid 6738] <... prctl resumed>) = 0 [pid 6736] <... set_robust_list resumed>) = 0 [pid 6735] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6740 attached ./strace-static-x86_64: Process 6737 attached [pid 6739] set_robust_list(0x7fc1280c99e0, 24 [pid 6738] setpgid(0, 0 [pid 6736] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6735] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6740] set_robust_list(0x7fc1280c99e0, 24 [pid 6738] <... setpgid resumed>) = 0 [pid 6736] <... socket resumed>) = 3 [pid 6739] <... set_robust_list resumed>) = 0 [pid 6737] set_robust_list(0x7fc1280c99e0, 24 [pid 6740] <... set_robust_list resumed>) = 0 [pid 6739] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6737] <... set_robust_list resumed>) = 0 [pid 6736] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6740] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6739] <... socket resumed>) = 3 [pid 6738] <... openat resumed>) = 3 [pid 6737] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6736] <... futex resumed>) = 1 [pid 6734] <... futex resumed>) = 0 [pid 6740] <... socket resumed>) = 3 [pid 6739] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6738] write(3, "1000", 4 [pid 6737] <... socket resumed>) = 3 [ 239.236223][ T6732] FAULT_INJECTION: forcing a failure. [ 239.236223][ T6732] name fail_futex, interval 1, probability 0, space 0, times 0 [ 239.262101][ T6732] CPU: 0 PID: 6732 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 239.272842][ T6732] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 239.282930][ T6732] Call Trace: [pid 6736] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6734] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6740] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6739] <... futex resumed>) = 1 [pid 6738] <... write resumed>) = 4 [pid 6737] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6736] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6734] <... futex resumed>) = 0 [pid 6733] <... futex resumed>) = 0 [pid 6740] <... futex resumed>) = 1 [pid 6738] close(3 [pid 6736] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6734] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6740] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6738] <... close resumed>) = 0 [pid 6736] <... setsockopt resumed>) = 0 [pid 6738] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6736] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6738] <... futex resumed>) = 0 [pid 6736] <... futex resumed>) = 1 [pid 6734] <... futex resumed>) = 0 [pid 6738] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6736] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6734] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6738] <... mmap resumed>) = 0x7fc1280a9000 [pid 6736] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6734] <... futex resumed>) = 0 [pid 6738] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6736] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6734] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6738] <... mprotect resumed>) = 0 [pid 6736] <... setsockopt resumed>) = 0 [pid 6738] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6736] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6734] <... futex resumed>) = 0 [pid 6738] <... clone resumed>, parent_tid=[6741], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6741 [pid 6736] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6734] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6738] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6736] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6734] <... futex resumed>) = 0 [pid 6738] <... futex resumed>) = 0 [pid 6736] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6734] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6738] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6736] <... setsockopt resumed>) = 0 [pid 6736] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6734] <... futex resumed>) = 0 [pid 6736] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6734] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6736] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6734] <... futex resumed>) = 0 [pid 6736] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6734] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6736] <... sendto resumed>) = 1 [pid 6736] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6741 attached ) = 1 [pid 6734] <... futex resumed>) = 0 [pid 6741] set_robust_list(0x7fc1280c99e0, 24 [pid 6736] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6734] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6741] <... set_robust_list resumed>) = 0 [pid 6736] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6734] <... futex resumed>) = 0 [pid 6741] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6736] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6734] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6741] <... socket resumed>) = 3 [pid 6736] <... sendto resumed>) = 1 [pid 6741] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6736] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6741] <... futex resumed>) = 1 [pid 6738] <... futex resumed>) = 0 [pid 6736] <... futex resumed>) = 1 [pid 6734] <... futex resumed>) = 0 [pid 6741] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6738] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6736] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6734] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6741] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6738] <... futex resumed>) = 0 [pid 6736] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6734] <... futex resumed>) = 0 [pid 6741] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6738] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6736] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6734] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6741] <... setsockopt resumed>) = 0 [pid 6736] <... openat resumed>) = 4 [pid 6741] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6736] write(4, "5", 1 [pid 6741] <... futex resumed>) = 1 [pid 6738] <... futex resumed>) = 0 [pid 6736] <... write resumed>) = 1 [pid 6741] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6738] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6736] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6741] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6738] <... futex resumed>) = 0 [pid 6736] <... setsockopt resumed>) = 0 [pid 6741] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6738] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6736] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6741] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6736] <... futex resumed>) = 1 [pid 6734] <... futex resumed>) = 0 [pid 6741] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6736] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6734] exit_group(0 [pid 6741] <... futex resumed>) = 1 [pid 6738] <... futex resumed>) = 0 [pid 6736] <... futex resumed>) = ? [pid 6734] <... exit_group resumed>) = ? [pid 6741] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6738] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6736] +++ exited with 0 +++ [pid 6734] +++ exited with 0 +++ [pid 6741] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6738] <... futex resumed>) = 0 [pid 6741] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6738] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6741] <... setsockopt resumed>) = 0 [pid 6741] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6738] <... futex resumed>) = 0 [pid 6741] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6738] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6741] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6738] <... futex resumed>) = 0 [pid 6731] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6741] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6738] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6731] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6741] <... sendto resumed>) = 1 [pid 6731] <... futex resumed>) = 0 [pid 6741] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6731] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6741] <... futex resumed>) = 1 [pid 6738] <... futex resumed>) = 0 [pid 6741] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6738] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6741] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6738] <... futex resumed>) = 0 [pid 6741] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6738] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6741] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6741] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6738] <... futex resumed>) = 0 [pid 6741] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6738] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6741] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6738] <... futex resumed>) = 0 [pid 6741] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6738] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6741] <... openat resumed>) = 4 [pid 6741] write(4, "5", 1) = 1 [pid 6741] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [ 239.286229][ T6732] [ 239.289189][ T6732] dump_stack_lvl+0xcd/0x134 [ 239.293818][ T6732] should_fail.cold+0x5/0xa [ 239.298358][ T6732] get_futex_key+0x5b2/0x1c50 [ 239.303068][ T6732] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 239.309086][ T6732] ? futex_setup_timer+0xf0/0xf0 [ 239.314066][ T6732] futex_wake+0xe4/0x490 [ 239.318357][ T6732] ? futex_wake_mark+0x1a0/0x1a0 [ 239.318589][ T6741] FAULT_INJECTION: forcing a failure. [ 239.318589][ T6741] name fail_futex, interval 1, probability 0, space 0, times 0 [pid 6741] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6734, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6742 ./strace-static-x86_64: Process 6742 attached [pid 6742] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6742] setpgid(0, 0) = 0 [pid 6742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6742] write(3, "1000", 4) = 4 [pid 6742] close(3) = 0 [pid 6742] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6742] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6731] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6742] <... mmap resumed>) = 0x7fc1280a9000 [pid 6731] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6742] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6731] <... futex resumed>) = 0 [pid 6742] <... mprotect resumed>) = 0 [pid 6731] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6742] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6731] <... mmap resumed>) = 0x7fc128088000 [pid 6731] mprotect(0x7fc128089000, 131072, PROT_READ|PROT_WRITE [pid 6742] <... clone resumed>, parent_tid=[6743], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6743 [pid 6731] <... mprotect resumed>) = 0 [pid 6742] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6731] clone(child_stack=0x7fc1280a83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6742] <... futex resumed>) = 0 [pid 6738] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6742] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6738] exit_group(0 [pid 6731] <... clone resumed>, parent_tid=[6744], tls=0x7fc1280a8700, child_tidptr=0x7fc1280a89d0) = 6744 [pid 6738] <... exit_group resumed>) = ? [pid 6731] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6731] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6743 attached [ 239.323408][ T6732] ? ptrace_stop.part.0+0x5ec/0xa80 [ 239.323439][ T6732] ? do_raw_spin_lock+0x120/0x2a0 [ 239.323466][ T6732] ? rwlock_bug.part.0+0x90/0x90 [ 239.351436][ T6732] ? _raw_spin_lock_irq+0x41/0x50 [ 239.356518][ T6732] do_futex+0x266/0x300 [ 239.360708][ T6732] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 239.366636][ T6732] ? find_held_lock+0x2d/0x110 [ 239.371436][ T6732] __x64_sys_futex+0x1b0/0x4a0 [ 239.376222][ T6732] ? do_futex+0x300/0x300 [ 239.380584][ T6732] ? _raw_spin_unlock_irq+0x1f/0x40 [pid 6743] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6743] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6743] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6742] <... futex resumed>) = 0 [pid 6743] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6742] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6743] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6742] <... futex resumed>) = 0 [pid 6743] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6742] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6743] <... setsockopt resumed>) = 0 [pid 6743] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6742] <... futex resumed>) = 0 [pid 6743] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6742] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6743] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6742] <... futex resumed>) = 0 [pid 6743] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6742] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6743] <... setsockopt resumed>) = 0 [pid 6743] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6742] <... futex resumed>) = 0 [pid 6743] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6742] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6743] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6742] <... futex resumed>) = 0 [pid 6743] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6742] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6743] <... setsockopt resumed>) = 0 [pid 6743] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6742] <... futex resumed>) = 0 [pid 6743] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6742] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6743] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6742] <... futex resumed>) = 0 [pid 6743] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [ 239.385822][ T6732] ? lockdep_hardirqs_on+0x79/0x100 [ 239.391055][ T6732] ? _raw_spin_unlock_irq+0x2a/0x40 [ 239.396373][ T6732] ? ptrace_notify+0xfa/0x140 [ 239.401079][ T6732] do_syscall_64+0x35/0xb0 [ 239.405522][ T6732] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 239.411442][ T6732] RIP: 0033:0x7fc128117db9 [ 239.415873][ T6732] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [pid 6742] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6743] <... sendto resumed>) = 1 [pid 6735] <... futex resumed>) = 0 [pid 6743] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6735] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6743] <... futex resumed>) = 1 [pid 6742] <... futex resumed>) = 0 [pid 6740] <... futex resumed>) = 0 [pid 6735] <... futex resumed>) = 1 [pid 6743] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6742] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6740] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6735] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6743] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6742] <... futex resumed>) = 0 [pid 6740] <... setsockopt resumed>) = 0 [pid 6743] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6742] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6740] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6731] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6743] <... sendto resumed>) = 1 [pid 6740] <... futex resumed>) = 1 [pid 6735] <... futex resumed>) = 0 [pid 6731] futex(0x7fc1281a04cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6743] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6740] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6735] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6731] <... futex resumed>) = 0 [pid 6743] <... futex resumed>) = 1 [pid 6742] <... futex resumed>) = 0 [pid 6740] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6735] <... futex resumed>) = 0 [pid 6731] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6743] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6742] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6740] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6735] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6731] <... mmap resumed>) = 0x7fc128067000 [pid 6743] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6742] <... futex resumed>) = 0 [pid 6740] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6731] mprotect(0x7fc128068000, 131072, PROT_READ|PROT_WRITE [pid 6743] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6742] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6740] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6731] <... mprotect resumed>) = 0 [pid 6743] <... openat resumed>) = 4 [pid 6740] <... futex resumed>) = 1 [pid 6735] <... futex resumed>) = 0 [pid 6731] clone(child_stack=0x7fc1280873f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6743] write(4, "5", 1 [pid 6740] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6735] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6743] <... write resumed>) = 1 [pid 6740] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6735] <... futex resumed>) = 0 [pid 6731] <... clone resumed>, parent_tid=[6745], tls=0x7fc128087700, child_tidptr=0x7fc1280879d0) = 6745 [pid 6743] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6740] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6735] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6731] futex(0x7fc1281a04c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6743] <... setsockopt resumed>) = 0 [pid 6740] <... setsockopt resumed>) = 0 [pid 6731] <... futex resumed>) = 0 [pid 6743] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6740] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6731] futex(0x7fc1281a04cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6745 attached [pid 6743] <... futex resumed>) = 1 [pid 6742] <... futex resumed>) = 0 [pid 6740] <... futex resumed>) = 1 [pid 6735] <... futex resumed>) = 0 [pid 6745] set_robust_list(0x7fc1280879e0, 24 [pid 6743] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6742] exit_group(0 [pid 6740] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6735] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6745] <... set_robust_list resumed>) = 0 [pid 6743] <... futex resumed>) = ? [pid 6742] <... exit_group resumed>) = ? [pid 6740] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6735] <... futex resumed>) = 0 [pid 6745] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6743] +++ exited with 0 +++ [pid 6742] +++ exited with 0 +++ [pid 6740] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6735] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6745] <... setsockopt resumed>) = -1 EACCES (Permission denied) [pid 6740] <... sendto resumed>) = 1 [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6742, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6745] futex(0x7fc1281a04cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6740] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6739] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3611] restart_syscall(<... resuming interrupted clone ...> [pid 6745] <... futex resumed>) = 1 [pid 6740] <... futex resumed>) = 1 [pid 6735] <... futex resumed>) = 0 [pid 6731] <... futex resumed>) = 0 [pid 3611] <... restart_syscall resumed>) = 0 [pid 6745] futex(0x7fc1281a04c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6740] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6735] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6733] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6731] futex(0x7fc1281a04c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6724] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) ./strace-static-x86_64: Process 6744 attached [pid 6745] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6740] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 239.435514][ T6732] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 239.443963][ T6732] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 239.451971][ T6732] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 239.459973][ T6732] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 239.467970][ T6732] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 239.475965][ T6732] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 239.483984][ T6732] [pid 6739] <... futex resumed>) = 0 [pid 6737] <... futex resumed>) = 0 [pid 6735] <... futex resumed>) = 0 [pid 6733] <... futex resumed>) = 1 [pid 6732] <... futex resumed>) = -1 EFAULT (Bad address) [pid 6731] <... futex resumed>) = 0 [pid 6724] exit_group(0 [pid 6745] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6744] set_robust_list(0x7fc1280a89e0, 24 [pid 6740] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6739] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6735] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6731] futex(0x7fc1281a04cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6745] <... sendto resumed>) = 1 [pid 6740] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6739] <... setsockopt resumed>) = 0 [pid 6745] futex(0x7fc1281a04cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6740] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6739] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6746 [pid 6745] <... futex resumed>) = 1 [pid 6740] <... futex resumed>) = 1 [pid 6739] <... futex resumed>) = 0 [pid 6735] <... futex resumed>) = 0 [pid 6731] <... futex resumed>) = 0 [pid 6745] futex(0x7fc1281a04c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6740] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6739] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6735] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6731] futex(0x7fc1281a04c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6745] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6740] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6735] <... futex resumed>) = 0 [pid 6731] <... futex resumed>) = 0 [pid 6745] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6740] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6735] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6731] futex(0x7fc1281a04cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6746 attached [pid 6745] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6740] <... openat resumed>) = 4 [pid 6746] set_robust_list(0x5555564f35e0, 24 [pid 6745] futex(0x7fc1281a04cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6740] write(4, "5", 1 [pid 6746] <... set_robust_list resumed>) = 0 [pid 6745] <... futex resumed>) = 1 [pid 6740] <... write resumed>) = 1 [pid 6731] <... futex resumed>) = 0 [pid 6724] <... exit_group resumed>) = ? [pid 6746] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6745] futex(0x7fc1281a04c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6740] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6731] futex(0x7fc1281a04c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6746] <... prctl resumed>) = 0 [pid 6745] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6740] <... setsockopt resumed>) = 0 [pid 6731] <... futex resumed>) = 0 [pid 6746] setpgid(0, 0 [pid 6745] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6740] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6731] futex(0x7fc1281a04cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6746] <... setpgid resumed>) = 0 [ 239.492079][ T6741] CPU: 0 PID: 6741 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 239.502627][ T6741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 239.512708][ T6741] Call Trace: [ 239.516008][ T6741] [ 239.518956][ T6741] dump_stack_lvl+0xcd/0x134 [ 239.522121][ T6740] FAULT_INJECTION: forcing a failure. [ 239.522121][ T6740] name fail_futex, interval 1, probability 0, space 0, times 0 [ 239.523561][ T6741] should_fail.cold+0x5/0xa [ 239.523597][ T6741] get_futex_key+0x5b2/0x1c50 [ 239.523622][ T6741] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 239.523652][ T6741] ? futex_setup_timer+0xf0/0xf0 [ 239.523684][ T6741] futex_wake+0xe4/0x490 [ 239.523711][ T6741] ? futex_wake_mark+0x1a0/0x1a0 [ 239.565873][ T6741] ? ptrace_stop.part.0+0x5ec/0xa80 [ 239.571107][ T6741] ? do_raw_spin_lock+0x120/0x2a0 [ 239.576157][ T6741] ? rwlock_bug.part.0+0x90/0x90 [ 239.581103][ T6741] ? _raw_spin_lock_irq+0x41/0x50 [ 239.586153][ T6741] do_futex+0x266/0x300 [pid 6745] <... openat resumed>) = 4 [pid 6746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6745] write(4, "5", 1 [pid 6746] <... openat resumed>) = 3 [pid 6745] <... write resumed>) = 1 [pid 6746] write(3, "1000", 4 [pid 6745] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6746] <... write resumed>) = 4 [pid 6745] <... setsockopt resumed>) = -1 EACCES (Permission denied) [pid 6746] close(3 [pid 6745] futex(0x7fc1281a04cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6746] <... close resumed>) = 0 [pid 6745] <... futex resumed>) = 1 [pid 6731] <... futex resumed>) = 0 [ 239.590337][ T6741] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 239.596252][ T6741] ? find_held_lock+0x2d/0x110 [ 239.601052][ T6741] __x64_sys_futex+0x1b0/0x4a0 [ 239.605849][ T6741] ? do_futex+0x300/0x300 [ 239.610208][ T6741] ? _raw_spin_unlock_irq+0x1f/0x40 [ 239.615435][ T6741] ? lockdep_hardirqs_on+0x79/0x100 [ 239.620658][ T6741] ? _raw_spin_unlock_irq+0x2a/0x40 [ 239.625884][ T6741] ? ptrace_notify+0xfa/0x140 [ 239.630592][ T6741] do_syscall_64+0x35/0xb0 [ 239.635036][ T6741] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 239.640957][ T6741] RIP: 0033:0x7fc128117db9 [ 239.645910][ T6741] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 239.665542][ T6741] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 239.673966][ T6741] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 239.681951][ T6741] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [pid 6746] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6745] futex(0x7fc1281a04c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6746] <... futex resumed>) = 0 [pid 6746] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6746] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6746] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6747], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6747 [pid 6746] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6746] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6747 attached [pid 6747] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6747] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6735] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6747] <... socket resumed>) = 3 [pid 6735] exit_group(0 [pid 6747] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6735] <... exit_group resumed>) = ? [pid 6747] <... futex resumed>) = 1 [pid 6746] <... futex resumed>) = 0 [pid 6747] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6746] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6747] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6746] <... futex resumed>) = 0 [pid 6747] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6746] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6747] <... setsockopt resumed>) = 0 [pid 6747] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6746] <... futex resumed>) = 0 [pid 6737] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6747] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6746] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6737] <... setsockopt resumed>) = 0 [pid 6747] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6746] <... futex resumed>) = 0 [pid 6737] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6747] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6746] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6737] <... futex resumed>) = 0 [pid 6747] <... setsockopt resumed>) = 0 [pid 6737] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6747] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6746] <... futex resumed>) = 0 [pid 6747] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6746] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6747] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6746] <... futex resumed>) = 0 [pid 6747] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6746] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6747] <... setsockopt resumed>) = 0 [pid 6747] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6746] <... futex resumed>) = 0 [pid 6747] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6746] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6747] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6746] <... futex resumed>) = 0 [pid 6747] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6746] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6747] <... sendto resumed>) = 1 [pid 6747] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6746] <... futex resumed>) = 0 [pid 6747] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6746] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6747] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6746] <... futex resumed>) = 0 [pid 6747] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6746] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6747] <... sendto resumed>) = 1 [pid 6747] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6746] <... futex resumed>) = 0 [pid 6747] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6746] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6747] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6746] <... futex resumed>) = 0 [pid 6747] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6746] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6747] <... openat resumed>) = 4 [pid 6747] write(4, "5", 1) = 1 [pid 6747] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6747] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6746] <... futex resumed>) = 0 [pid 6747] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6746] exit_group(0 [pid 6747] <... futex resumed>) = ? [pid 6746] <... exit_group resumed>) = ? [pid 6747] +++ exited with 0 +++ [pid 6746] +++ exited with 0 +++ [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6746, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6748 ./strace-static-x86_64: Process 6748 attached [pid 6748] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6748] setpgid(0, 0) = 0 [pid 6748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6748] write(3, "1000", 4) = 4 [pid 6748] close(3) = 0 [pid 6748] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6748] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6748] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6748] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6749], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6749 [pid 6748] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6748] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6749 attached [pid 6749] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6749] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6749] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6748] <... futex resumed>) = 0 [pid 6749] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6748] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6749] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6748] <... futex resumed>) = 0 [pid 6749] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6748] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6749] <... setsockopt resumed>) = 0 [pid 6749] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6748] <... futex resumed>) = 0 [pid 6749] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6748] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6749] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6748] <... futex resumed>) = 0 [pid 6749] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6748] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6749] <... setsockopt resumed>) = 0 [pid 6749] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6748] <... futex resumed>) = 0 [pid 6749] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6748] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6749] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6748] <... futex resumed>) = 0 [pid 6749] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6748] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6749] <... setsockopt resumed>) = 0 [pid 6749] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6748] <... futex resumed>) = 0 [pid 6749] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6748] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6749] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6748] <... futex resumed>) = 0 [pid 6749] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6748] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6749] <... sendto resumed>) = 1 [pid 6744] <... set_robust_list resumed>) = 0 [pid 6741] <... futex resumed>) = ? [pid 6733] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6749] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6748] <... futex resumed>) = 0 [pid 6749] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6748] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6749] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6748] <... futex resumed>) = 0 [pid 6749] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6748] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6749] <... sendto resumed>) = 1 [pid 6749] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6748] <... futex resumed>) = 0 [pid 6749] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6748] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6749] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6748] <... futex resumed>) = 0 [pid 6749] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6748] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6749] <... openat resumed>) = 4 [pid 6749] write(4, "5", 1) = 1 [pid 6749] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6749] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6748] <... futex resumed>) = 0 [ 239.689941][ T6741] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 239.698032][ T6741] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 239.706023][ T6741] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 239.714027][ T6741] [ 239.721286][ T6740] CPU: 0 PID: 6740 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 239.731921][ T6740] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [pid 6749] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6748] exit_group(0 [pid 6749] <... futex resumed>) = ? [pid 6748] <... exit_group resumed>) = ? [pid 6749] +++ exited with 0 +++ [pid 6748] +++ exited with 0 +++ [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6748, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [ 239.741997][ T6740] Call Trace: [ 239.745297][ T6740] [ 239.748245][ T6740] dump_stack_lvl+0xcd/0x134 [ 239.752951][ T6740] should_fail.cold+0x5/0xa [ 239.757489][ T6740] get_futex_key+0x5b2/0x1c50 [ 239.762194][ T6740] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 239.768202][ T6740] ? futex_setup_timer+0xf0/0xf0 [ 239.773175][ T6740] futex_wake+0xe4/0x490 [ 239.777448][ T6740] ? futex_wake_mark+0x1a0/0x1a0 [ 239.782413][ T6740] ? ptrace_stop.part.0+0x5ec/0xa80 [ 239.787638][ T6740] ? do_raw_spin_lock+0x120/0x2a0 [ 239.792689][ T6740] ? rwlock_bug.part.0+0x90/0x90 [ 239.797658][ T6740] ? _raw_spin_lock_irq+0x41/0x50 [ 239.802717][ T6740] do_futex+0x266/0x300 [ 239.806910][ T6740] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 239.812834][ T6740] ? find_held_lock+0x2d/0x110 [ 239.817805][ T6740] __x64_sys_futex+0x1b0/0x4a0 [ 239.822612][ T6740] ? do_futex+0x300/0x300 [ 239.826963][ T6740] ? _raw_spin_unlock_irq+0x1f/0x40 [ 239.832193][ T6740] ? lockdep_hardirqs_on+0x79/0x100 [ 239.837418][ T6740] ? _raw_spin_unlock_irq+0x2a/0x40 [ 239.842658][ T6740] ? ptrace_notify+0xfa/0x140 [ 239.847362][ T6740] do_syscall_64+0x35/0xb0 [ 239.851806][ T6740] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 239.857787][ T6740] RIP: 0033:0x7fc128117db9 [ 239.862225][ T6740] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 239.879783][ T6753] FAULT_INJECTION: forcing a failure. [ 239.879783][ T6753] name fail_futex, interval 1, probability 0, space 0, times 0 [ 239.881837][ T6740] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 239.903130][ T6740] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 239.911123][ T6740] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 239.919115][ T6740] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 239.927106][ T6740] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 239.935101][ T6740] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [pid 6744] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28) = -1 EINVAL (Invalid argument) [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6750 [pid 6744] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6731] exit_group(0./strace-static-x86_64: Process 6750 attached [pid 6745] <... futex resumed>) = ? [pid 6737] <... futex resumed>) = ? [pid 6731] <... exit_group resumed>) = ? [pid 6750] set_robust_list(0x5555564f35e0, 24 [pid 6745] +++ exited with 0 +++ [pid 6744] +++ exited with 0 +++ [pid 6737] +++ exited with 0 +++ [pid 6731] +++ exited with 0 +++ [pid 6750] <... set_robust_list resumed>) = 0 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6731, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6750] setpgid(0, 0 [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6750] <... setpgid resumed>) = 0 [pid 6750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3615] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6751 [pid 6750] <... openat resumed>) = 3 [pid 6750] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 6751 attached [pid 6750] close(3 [pid 6751] set_robust_list(0x5555564f35e0, 24 [pid 6750] <... close resumed>) = 0 [pid 6751] <... set_robust_list resumed>) = 0 [pid 6750] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6751] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6750] <... futex resumed>) = 0 [pid 6751] <... prctl resumed>) = 0 [pid 6750] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6751] setpgid(0, 0 [pid 6750] <... mmap resumed>) = 0x7fc1280a9000 [pid 6751] <... setpgid resumed>) = 0 [pid 6750] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6750] <... mprotect resumed>) = 0 [pid 6751] <... openat resumed>) = 3 [pid 6750] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6751] write(3, "1000", 4) = 4 [pid 6750] <... clone resumed>, parent_tid=[6752], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6752 [pid 6751] close(3 [pid 6750] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6751] <... close resumed>) = 0 [pid 6750] <... futex resumed>) = 0 [pid 6751] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6750] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6751] <... futex resumed>) = 0 [pid 6751] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6751] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6751] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6753], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6753 ./strace-static-x86_64: Process 6752 attached [pid 6751] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6752] set_robust_list(0x7fc1280c99e0, 24 [pid 6751] <... futex resumed>) = 0 [pid 6752] <... set_robust_list resumed>) = 0 [pid 6751] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6752] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 ./strace-static-x86_64: Process 6753 attached [pid 6752] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6753] set_robust_list(0x7fc1280c99e0, 24 [pid 6752] <... futex resumed>) = 1 [pid 6750] <... futex resumed>) = 0 [pid 6753] <... set_robust_list resumed>) = 0 [pid 6752] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6750] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6753] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6752] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6750] <... futex resumed>) = 0 [pid 6753] <... socket resumed>) = 3 [pid 6752] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6750] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6753] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6752] <... setsockopt resumed>) = 0 [pid 6753] <... futex resumed>) = 1 [pid 6752] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6751] <... futex resumed>) = 0 [pid 6753] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6752] <... futex resumed>) = 1 [pid 6751] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6750] <... futex resumed>) = 0 [pid 6753] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6752] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6751] <... futex resumed>) = 0 [pid 6750] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6753] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6752] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6751] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6750] <... futex resumed>) = 0 [pid 6753] <... setsockopt resumed>) = 0 [pid 6752] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6750] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6753] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6752] <... setsockopt resumed>) = 0 [pid 6753] <... futex resumed>) = 1 [pid 6752] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6751] <... futex resumed>) = 0 [pid 6753] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6752] <... futex resumed>) = 1 [pid 6751] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6750] <... futex resumed>) = 0 [pid 6753] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6752] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6751] <... futex resumed>) = 0 [pid 6750] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6753] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6752] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6751] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6750] <... futex resumed>) = 0 [pid 6753] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6752] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6750] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6753] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6752] <... setsockopt resumed>) = 0 [pid 6753] <... futex resumed>) = 1 [pid 6752] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6751] <... futex resumed>) = 0 [pid 6753] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6752] <... futex resumed>) = 1 [pid 6751] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6750] <... futex resumed>) = 0 [pid 6753] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6752] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6751] <... futex resumed>) = 0 [pid 6750] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6753] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6752] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6751] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6750] <... futex resumed>) = 0 [pid 6753] <... setsockopt resumed>) = 0 [pid 6752] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6750] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6753] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6752] <... sendto resumed>) = 1 [pid 6753] <... futex resumed>) = 1 [pid 6752] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6751] <... futex resumed>) = 0 [pid 6753] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6752] <... futex resumed>) = 1 [pid 6751] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6750] <... futex resumed>) = 0 [pid 6753] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6752] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6751] <... futex resumed>) = 0 [pid 6750] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6753] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6752] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6751] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6750] <... futex resumed>) = 0 [pid 6753] <... sendto resumed>) = 1 [pid 6752] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6750] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6753] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6752] <... sendto resumed>) = 1 [pid 6753] <... futex resumed>) = 1 [pid 6752] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6751] <... futex resumed>) = 0 [pid 6753] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6752] <... futex resumed>) = 1 [pid 6751] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6750] <... futex resumed>) = 0 [pid 6753] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6752] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6751] <... futex resumed>) = 0 [pid 6750] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6753] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6752] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6751] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6750] <... futex resumed>) = 0 [pid 6753] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6752] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6750] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6753] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6752] <... openat resumed>) = 4 [pid 6753] <... futex resumed>) = 1 [pid 6752] write(4, "5", 1 [pid 6751] <... futex resumed>) = 0 [pid 6753] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6752] <... write resumed>) = 1 [pid 6751] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6753] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6752] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6751] <... futex resumed>) = 0 [pid 6753] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6752] <... setsockopt resumed>) = 0 [pid 6751] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6753] <... openat resumed>) = 4 [pid 6752] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6753] write(4, "5", 1 [pid 6752] <... futex resumed>) = 1 [pid 6750] <... futex resumed>) = 0 [pid 6753] <... write resumed>) = 1 [pid 6752] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6750] exit_group(0 [pid 6753] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6752] <... futex resumed>) = ? [pid 6750] <... exit_group resumed>) = ? [pid 6753] <... setsockopt resumed>) = 0 [pid 6752] +++ exited with 0 +++ [pid 6750] +++ exited with 0 +++ [pid 6753] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6750, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6754 ./strace-static-x86_64: Process 6754 attached [pid 6754] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6754] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6751] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6754] <... prctl resumed>) = 0 [pid 6751] exit_group(0 [pid 6754] setpgid(0, 0 [pid 6751] <... exit_group resumed>) = ? [pid 6754] <... setpgid resumed>) = 0 [pid 6754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6754] write(3, "1000", 4) = 4 [pid 6754] close(3) = 0 [pid 6754] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6754] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6754] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6741] +++ exited with 0 +++ [pid 6738] +++ exited with 0 +++ [pid 6754] <... mprotect resumed>) = 0 [pid 6754] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6733] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6738, si_uid=0, si_status=0, si_utime=0, si_stime=28} --- [pid 6740] <... futex resumed>) = ? [pid 6733] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6732] +++ exited with 0 +++ [pid 6724] +++ exited with 0 +++ [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6754] <... clone resumed>, parent_tid=[6755], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6755 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6724, si_uid=0, si_status=0, si_utime=0, si_stime=24} --- [pid 6754] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6756 [pid 6754] <... futex resumed>) = 0 [pid 6754] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6755 attached , child_tidptr=0x5555564f35d0) = 6757 [pid 6755] set_robust_list(0x7fc1280c99e0, 24./strace-static-x86_64: Process 6756 attached ) = 0 [pid 6756] set_robust_list(0x5555564f35e0, 24 [pid 6755] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6756] <... set_robust_list resumed>) = 0 [pid 6755] <... socket resumed>) = 3 ./strace-static-x86_64: Process 6757 attached [pid 6756] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6755] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6757] set_robust_list(0x5555564f35e0, 24 [pid 6756] <... prctl resumed>) = 0 [pid 6755] <... futex resumed>) = 1 [pid 6754] <... futex resumed>) = 0 [pid 6757] <... set_robust_list resumed>) = 0 [pid 6756] setpgid(0, 0 [pid 6755] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6754] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6757] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6756] <... setpgid resumed>) = 0 [pid 6755] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6754] <... futex resumed>) = 0 [pid 6757] <... prctl resumed>) = 0 [pid 6756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [ 239.943106][ T6740] [ 239.949929][ T6753] CPU: 0 PID: 6753 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 239.960468][ T6753] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 239.970548][ T6753] Call Trace: [ 239.973851][ T6753] [ 239.976800][ T6753] dump_stack_lvl+0xcd/0x134 [ 239.981430][ T6753] should_fail.cold+0x5/0xa [ 239.985971][ T6753] get_futex_key+0x5b2/0x1c50 [ 239.990853][ T6753] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 239.996866][ T6753] ? futex_setup_timer+0xf0/0xf0 [ 240.001845][ T6753] futex_wake+0xe4/0x490 [ 240.006122][ T6753] ? futex_wake_mark+0x1a0/0x1a0 [ 240.011089][ T6753] ? ptrace_stop.part.0+0x5ec/0xa80 [ 240.016316][ T6753] ? do_raw_spin_lock+0x120/0x2a0 [ 240.021370][ T6753] ? rwlock_bug.part.0+0x90/0x90 [ 240.026333][ T6753] ? _raw_spin_lock_irq+0x41/0x50 [ 240.031388][ T6753] do_futex+0x266/0x300 [ 240.035571][ T6753] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 240.041492][ T6753] ? find_held_lock+0x2d/0x110 [ 240.046298][ T6753] __x64_sys_futex+0x1b0/0x4a0 [ 240.051092][ T6753] ? do_futex+0x300/0x300 [ 240.055441][ T6753] ? _raw_spin_unlock_irq+0x1f/0x40 [ 240.060669][ T6753] ? lockdep_hardirqs_on+0x79/0x100 [ 240.065901][ T6753] ? _raw_spin_unlock_irq+0x2a/0x40 [ 240.071131][ T6753] ? ptrace_notify+0xfa/0x140 [ 240.075843][ T6753] do_syscall_64+0x35/0xb0 [ 240.080292][ T6753] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 240.086219][ T6753] RIP: 0033:0x7fc128117db9 [pid 6755] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6754] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6757] setpgid(0, 0 [pid 6756] <... openat resumed>) = 3 [pid 6755] <... setsockopt resumed>) = 0 [pid 6757] <... setpgid resumed>) = 0 [pid 6756] write(3, "1000", 4 [pid 6755] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6756] <... write resumed>) = 4 [pid 6755] <... futex resumed>) = 1 [pid 6754] <... futex resumed>) = 0 [pid 6757] <... openat resumed>) = 3 [pid 6756] close(3 [pid 6755] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6754] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6757] write(3, "1000", 4 [pid 6756] <... close resumed>) = 0 [pid 6755] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6754] <... futex resumed>) = 0 [pid 6757] <... write resumed>) = 4 [pid 6756] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6755] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6754] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6757] close(3 [pid 6756] <... futex resumed>) = 0 [pid 6755] <... setsockopt resumed>) = 0 [pid 6757] <... close resumed>) = 0 [pid 6756] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6755] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6757] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6756] <... mmap resumed>) = 0x7fc1280a9000 [pid 6755] <... futex resumed>) = 1 [pid 6754] <... futex resumed>) = 0 [pid 6757] <... futex resumed>) = 0 [pid 6756] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6755] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6754] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6757] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6756] <... mprotect resumed>) = 0 [pid 6755] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6754] <... futex resumed>) = 0 [pid 6757] <... mmap resumed>) = 0x7fc1280a9000 [pid 6756] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6755] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6754] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6757] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6755] <... setsockopt resumed>) = 0 [pid 6757] <... mprotect resumed>) = 0 [pid 6756] <... clone resumed>, parent_tid=[6758], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6758 [pid 6755] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6757] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6756] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6755] <... futex resumed>) = 1 [pid 6754] <... futex resumed>) = 0 [pid 6756] <... futex resumed>) = 0 [pid 6755] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6754] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6757] <... clone resumed>, parent_tid=[6759], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6759 [pid 6756] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6755] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6754] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6758 attached [pid 6757] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6755] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6754] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6759 attached [pid 6758] set_robust_list(0x7fc1280c99e0, 24 [pid 6757] <... futex resumed>) = 0 [pid 6755] <... sendto resumed>) = 1 [pid 6759] set_robust_list(0x7fc1280c99e0, 24 [pid 6758] <... set_robust_list resumed>) = 0 [pid 6757] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6755] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6759] <... set_robust_list resumed>) = 0 [pid 6758] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6755] <... futex resumed>) = 1 [pid 6754] <... futex resumed>) = 0 [pid 6759] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6758] <... socket resumed>) = 3 [pid 6755] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6754] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6759] <... socket resumed>) = 3 [pid 6758] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6755] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6754] <... futex resumed>) = 0 [pid 6759] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6758] <... futex resumed>) = 1 [pid 6756] <... futex resumed>) = 0 [pid 6755] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6754] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6759] <... futex resumed>) = 1 [pid 6758] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6757] <... futex resumed>) = 0 [pid 6756] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6755] <... sendto resumed>) = 1 [pid 6759] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6758] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6757] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6756] <... futex resumed>) = 0 [pid 6755] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6759] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6758] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6757] <... futex resumed>) = 0 [pid 6756] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6755] <... futex resumed>) = 1 [pid 6754] <... futex resumed>) = 0 [pid 6759] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6758] <... setsockopt resumed>) = 0 [pid 6757] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6755] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6754] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6759] <... setsockopt resumed>) = 0 [pid 6758] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6755] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6754] <... futex resumed>) = 0 [pid 6759] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6758] <... futex resumed>) = 1 [pid 6756] <... futex resumed>) = 0 [pid 6755] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6754] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6759] <... futex resumed>) = 1 [pid 6758] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6757] <... futex resumed>) = 0 [pid 6756] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6755] <... openat resumed>) = 4 [pid 6759] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6758] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6757] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6756] <... futex resumed>) = 0 [pid 6755] write(4, "5", 1 [pid 6759] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6758] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6757] <... futex resumed>) = 0 [pid 6756] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6755] <... write resumed>) = 1 [pid 6759] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6758] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6757] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6755] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6759] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6758] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6755] <... setsockopt resumed>) = 0 [pid 6759] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6758] <... futex resumed>) = 1 [pid 6756] <... futex resumed>) = 0 [pid 6755] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6759] <... futex resumed>) = 1 [pid 6758] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6757] <... futex resumed>) = 0 [pid 6756] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6755] <... futex resumed>) = 1 [pid 6754] <... futex resumed>) = 0 [pid 6759] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6758] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6757] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6756] <... futex resumed>) = 0 [pid 6755] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6754] exit_group(0 [pid 6759] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6758] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6757] <... futex resumed>) = 0 [pid 6756] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6755] <... futex resumed>) = ? [pid 6754] <... exit_group resumed>) = ? [pid 6759] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6758] <... setsockopt resumed>) = 0 [pid 6757] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6755] +++ exited with 0 +++ [pid 6754] +++ exited with 0 +++ [pid 6759] <... setsockopt resumed>) = 0 [pid 6758] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6754, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 6759] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6758] <... futex resumed>) = 1 [pid 6756] <... futex resumed>) = 0 [pid 6740] +++ exited with 0 +++ [pid 6735] +++ exited with 0 +++ [pid 6759] <... futex resumed>) = 1 [pid 6758] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6757] <... futex resumed>) = 0 [pid 6756] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6735, si_uid=0, si_status=0, si_utime=0, si_stime=30} --- [pid 6759] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6758] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6757] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6756] <... futex resumed>) = 0 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6759] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6758] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6757] <... futex resumed>) = 0 [pid 6756] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6759] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6758] <... sendto resumed>) = 1 [pid 6757] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6760 [pid 6759] <... sendto resumed>) = 1 [pid 6758] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6759] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6758] <... futex resumed>) = 1 [pid 6756] <... futex resumed>) = 0 [pid 6759] <... futex resumed>) = 1 [pid 6758] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6757] <... futex resumed>) = 0 [pid 6756] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6759] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6758] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6757] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6756] <... futex resumed>) = 0 [pid 6759] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6758] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6757] <... futex resumed>) = 0 [pid 6756] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3610] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6761 [pid 6759] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6758] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6757] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6759] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6758] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6759] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6758] <... futex resumed>) = 1 [pid 6756] <... futex resumed>) = 0 [pid 6759] <... futex resumed>) = 1 [pid 6758] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6757] <... futex resumed>) = 0 [pid 6756] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6761 attached [pid 6759] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6758] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6757] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6756] <... futex resumed>) = 0 [pid 6761] set_robust_list(0x5555564f35e0, 24 [pid 6759] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6758] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6757] <... futex resumed>) = 0 [pid 6756] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6761] <... set_robust_list resumed>) = 0 [pid 6759] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6758] <... openat resumed>) = 4 [pid 6757] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6761] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6759] <... openat resumed>) = 4 [pid 6758] write(4, "5", 1 [pid 6761] <... prctl resumed>) = 0 [pid 6759] write(4, "5", 1 [pid 6758] <... write resumed>) = 1 [pid 6761] setpgid(0, 0 [pid 6759] <... write resumed>) = 1 [pid 6758] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6761] <... setpgid resumed>) = 0 [pid 6759] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6758] <... setsockopt resumed>) = 0 [pid 6761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6759] <... setsockopt resumed>) = 0 [pid 6758] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6761] <... openat resumed>) = 3 [ 240.090658][ T6753] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 240.095229][ T6758] FAULT_INJECTION: forcing a failure. [ 240.095229][ T6758] name fail_futex, interval 1, probability 0, space 0, times 0 [ 240.110284][ T6753] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 240.110311][ T6753] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [pid 6759] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6760 attached [pid 6761] write(3, "1000", 4 [pid 6757] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6756] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6739] <... futex resumed>) = 0 [pid 6733] <... futex resumed>) = 1 [pid 6761] <... write resumed>) = 4 [pid 6761] close(3) = 0 [pid 6761] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6761] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6761] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6761] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6762], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6762 [pid 6761] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6761] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6762 attached [ 240.110327][ T6753] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 240.110342][ T6753] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 240.110356][ T6753] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 240.124164][ T6759] FAULT_INJECTION: forcing a failure. [ 240.124164][ T6759] name fail_futex, interval 1, probability 0, space 0, times 0 [ 240.131489][ T6753] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 240.131523][ T6753] [pid 6762] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6762] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6762] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6761] <... futex resumed>) = 0 [pid 6762] <... futex resumed>) = 1 [pid 6761] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6762] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6761] <... futex resumed>) = 0 [pid 6762] <... setsockopt resumed>) = 0 [pid 6761] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6762] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6761] <... futex resumed>) = 0 [pid 6762] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6761] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6762] <... setsockopt resumed>) = 0 [pid 6761] <... futex resumed>) = 0 [pid 6762] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6761] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6762] <... futex resumed>) = 0 [pid 6761] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6762] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6761] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6762] <... setsockopt resumed>) = 0 [pid 6761] <... futex resumed>) = 0 [pid 6762] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6761] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6762] <... futex resumed>) = 0 [pid 6761] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6762] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6761] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6762] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6761] <... futex resumed>) = 0 [pid 6762] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6761] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6762] <... sendto resumed>) = 1 [pid 6762] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6761] <... futex resumed>) = 0 [pid 6761] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6762] <... futex resumed>) = 1 [pid 6761] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6762] sendto(3, "\x01", 1, 0, NULL, 0) = 1 [pid 6762] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6761] <... futex resumed>) = 0 [pid 6762] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6761] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6762] <... openat resumed>) = 4 [pid 6761] <... futex resumed>) = 0 [ 240.176566][ T6758] CPU: 0 PID: 6758 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 240.197987][ T6758] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 240.208063][ T6758] Call Trace: [ 240.211412][ T6758] [ 240.214360][ T6758] dump_stack_lvl+0xcd/0x134 [ 240.218983][ T6758] should_fail.cold+0x5/0xa [ 240.223519][ T6758] get_futex_key+0x5b2/0x1c50 [ 240.228311][ T6758] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 240.234326][ T6758] ? futex_setup_timer+0xf0/0xf0 [ 240.239301][ T6758] futex_wake+0xe4/0x490 [ 240.243576][ T6758] ? futex_wake_mark+0x1a0/0x1a0 [ 240.248583][ T6758] ? ptrace_stop.part.0+0x5ec/0xa80 [ 240.253854][ T6758] ? do_raw_spin_lock+0x120/0x2a0 [ 240.258995][ T6758] ? rwlock_bug.part.0+0x90/0x90 [ 240.263966][ T6758] ? _raw_spin_lock_irq+0x41/0x50 [ 240.269027][ T6758] do_futex+0x266/0x300 [ 240.273210][ T6758] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 240.279128][ T6758] ? find_held_lock+0x2d/0x110 [ 240.283941][ T6758] __x64_sys_futex+0x1b0/0x4a0 [ 240.288752][ T6758] ? do_futex+0x300/0x300 [ 240.293110][ T6758] ? _raw_spin_unlock_irq+0x1f/0x40 [ 240.298344][ T6758] ? lockdep_hardirqs_on+0x79/0x100 [ 240.303572][ T6758] ? _raw_spin_unlock_irq+0x2a/0x40 [ 240.308888][ T6758] ? ptrace_notify+0xfa/0x140 [ 240.313609][ T6758] do_syscall_64+0x35/0xb0 [ 240.318052][ T6758] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 240.323978][ T6758] RIP: 0033:0x7fc128117db9 [ 240.328420][ T6758] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 240.348058][ T6758] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 240.356508][ T6758] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 240.364490][ T6758] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 240.372487][ T6758] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 240.380487][ T6758] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 240.388483][ T6758] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 240.396495][ T6758] [ 240.399526][ T6759] CPU: 1 PID: 6759 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 240.410045][ T6759] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 240.420115][ T6759] Call Trace: [ 240.423413][ T6759] [ 240.426356][ T6759] dump_stack_lvl+0xcd/0x134 [ 240.430986][ T6759] should_fail.cold+0x5/0xa [ 240.435501][ T6759] get_futex_key+0x5b2/0x1c50 [ 240.440203][ T6759] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 240.446197][ T6759] ? futex_setup_timer+0xf0/0xf0 [ 240.451146][ T6759] futex_wake+0xe4/0x490 [ 240.455406][ T6759] ? futex_wake_mark+0x1a0/0x1a0 [ 240.460347][ T6759] ? ptrace_stop.part.0+0x5ec/0xa80 [ 240.465547][ T6759] ? do_raw_spin_lock+0x120/0x2a0 [ 240.470573][ T6759] ? rwlock_bug.part.0+0x90/0x90 [ 240.475597][ T6759] ? _raw_spin_lock_irq+0x41/0x50 [ 240.480627][ T6759] do_futex+0x266/0x300 [ 240.484789][ T6759] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 240.490682][ T6759] ? find_held_lock+0x2d/0x110 [ 240.495471][ T6759] __x64_sys_futex+0x1b0/0x4a0 [ 240.500240][ T6759] ? do_futex+0x300/0x300 [ 240.504569][ T6759] ? _raw_spin_unlock_irq+0x1f/0x40 [ 240.509783][ T6759] ? lockdep_hardirqs_on+0x79/0x100 [ 240.514989][ T6759] ? _raw_spin_unlock_irq+0x2a/0x40 [ 240.520205][ T6759] ? ptrace_notify+0xfa/0x140 [ 240.524885][ T6759] do_syscall_64+0x35/0xb0 [ 240.529303][ T6759] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 240.535204][ T6759] RIP: 0033:0x7fc128117db9 [ 240.539627][ T6759] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 240.559236][ T6759] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 240.567650][ T6759] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 240.575628][ T6759] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 240.583596][ T6759] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [pid 6762] write(4, "5", 1 [pid 6761] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6762] <... write resumed>) = 1 [pid 6762] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6762] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6761] <... futex resumed>) = 0 [pid 6762] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6761] exit_group(0 [pid 6762] <... futex resumed>) = ? [pid 6761] <... exit_group resumed>) = ? [pid 6762] +++ exited with 0 +++ [pid 6761] +++ exited with 0 +++ [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6761, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3610] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555564f35d0) = 6763 ./strace-static-x86_64: Process 6763 attached [pid 6763] set_robust_list(0x5555564f35e0, 24) = 0 [pid 6763] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 6763] setpgid(0, 0) = 0 [pid 6763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6763] write(3, "1000", 4) = 4 [pid 6763] close(3) = 0 [pid 6763] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6763] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6763] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6763] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[6764], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6764 [pid 6763] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6763] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6764 attached [pid 6764] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6764] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6764] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6763] <... futex resumed>) = 0 [pid 6763] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6763] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6764] <... futex resumed>) = 1 [pid 6764] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8) = 0 [pid 6764] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6763] <... futex resumed>) = 0 [pid 6764] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6763] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6764] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6763] <... futex resumed>) = 0 [pid 6764] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6763] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6764] <... setsockopt resumed>) = 0 [pid 6764] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6763] <... futex resumed>) = 0 [pid 6764] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6763] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6764] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6763] <... futex resumed>) = 0 [pid 6764] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6763] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6764] <... setsockopt resumed>) = 0 [pid 6764] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6763] <... futex resumed>) = 0 [pid 6764] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6763] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6764] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6763] <... futex resumed>) = 0 [pid 6764] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6763] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6764] <... sendto resumed>) = 1 [pid 6764] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6763] <... futex resumed>) = 0 [pid 6764] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6763] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6764] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6763] <... futex resumed>) = 0 [pid 6764] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6763] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6764] <... sendto resumed>) = 1 [pid 6764] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6763] <... futex resumed>) = 0 [pid 6764] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6763] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6764] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6763] <... futex resumed>) = 0 [pid 6764] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6763] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6764] <... openat resumed>) = 4 [pid 6764] write(4, "5", 1) = 1 [pid 6764] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9) = 0 [pid 6764] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 6763] <... futex resumed>) = 0 [pid 6764] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6763] exit_group(0 [pid 6764] <... futex resumed>) = ? [pid 6763] <... exit_group resumed>) = ? [pid 6764] +++ exited with 0 +++ [pid 6763] +++ exited with 0 +++ [pid 6760] set_robust_list(0x5555564f35e0, 24) = 0 [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6763, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6760] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3610] restart_syscall(<... resuming interrupted clone ...> [pid 6760] <... prctl resumed>) = 0 [pid 3610] <... restart_syscall resumed>) = 0 [pid 6760] setpgid(0, 0) = 0 [pid 6760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6760] <... openat resumed>) = 3 [pid 6760] write(3, "1000", 4 [pid 3610] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6765 [pid 6760] <... write resumed>) = 4 [pid 6760] close(3) = 0 [pid 6760] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6760] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fc1280a9000 [pid 6760] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 6765 attached ) = 0 [pid 6765] set_robust_list(0x5555564f35e0, 24 [pid 6760] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6765] <... set_robust_list resumed>) = 0 [pid 6765] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6760] <... clone resumed>, parent_tid=[6766], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6766 [pid 6765] <... prctl resumed>) = 0 [pid 6760] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6765] setpgid(0, 0 [pid 6760] <... futex resumed>) = 0 [pid 6765] <... setpgid resumed>) = 0 [pid 6760] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 6765] write(3, "1000", 4./strace-static-x86_64: Process 6766 attached ) = 4 [pid 6766] set_robust_list(0x7fc1280c99e0, 24 [pid 6765] close(3 [pid 6766] <... set_robust_list resumed>) = 0 [pid 6765] <... close resumed>) = 0 [pid 6766] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6765] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6766] <... socket resumed>) = 3 [pid 6765] <... futex resumed>) = 0 [pid 6766] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6765] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6766] <... futex resumed>) = 1 [pid 6765] <... mmap resumed>) = 0x7fc1280a9000 [pid 6760] <... futex resumed>) = 0 [pid 6766] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6765] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6760] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6766] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6765] <... mprotect resumed>) = 0 [pid 6760] <... futex resumed>) = 0 [pid 6766] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6765] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6760] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6766] <... setsockopt resumed>) = 0 [pid 6766] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6765] <... clone resumed>, parent_tid=[6767], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6767 [pid 6766] <... futex resumed>) = 1 [pid 6765] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6760] <... futex resumed>) = 0 [pid 6766] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6765] <... futex resumed>) = 0 [pid 6760] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6766] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6765] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6760] <... futex resumed>) = 0 [pid 6766] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6760] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6767 attached [pid 6766] <... setsockopt resumed>) = 0 [pid 6767] set_robust_list(0x7fc1280c99e0, 24 [pid 6766] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6767] <... set_robust_list resumed>) = 0 [pid 6766] <... futex resumed>) = 1 [pid 6760] <... futex resumed>) = 0 [pid 6767] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6766] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6760] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6767] <... socket resumed>) = 3 [pid 6766] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6760] <... futex resumed>) = 0 [pid 6767] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6766] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6760] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6767] <... futex resumed>) = 1 [pid 6766] <... setsockopt resumed>) = 0 [pid 6765] <... futex resumed>) = 0 [pid 6767] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6766] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6765] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6767] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6766] <... futex resumed>) = 1 [pid 6765] <... futex resumed>) = 0 [pid 6760] <... futex resumed>) = 0 [pid 6767] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6766] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6765] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6760] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6767] <... setsockopt resumed>) = 0 [pid 6766] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6760] <... futex resumed>) = 0 [pid 6767] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6766] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6760] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6767] <... futex resumed>) = 1 [pid 6766] <... sendto resumed>) = 1 [pid 6765] <... futex resumed>) = 0 [pid 6767] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6766] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6765] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6767] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6766] <... futex resumed>) = 1 [pid 6765] <... futex resumed>) = 0 [pid 6760] <... futex resumed>) = 0 [pid 6767] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6766] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6765] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6760] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6767] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6766] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6760] <... futex resumed>) = 0 [pid 6757] exit_group(0 [pid 6733] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6767] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6766] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6760] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6757] <... exit_group resumed>) = ? [pid 6767] <... futex resumed>) = 1 [pid 6766] <... sendto resumed>) = 1 [pid 6765] <... futex resumed>) = 0 [pid 6767] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6766] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6765] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6767] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6766] <... futex resumed>) = 1 [pid 6765] <... futex resumed>) = 0 [pid 6760] <... futex resumed>) = 0 [pid 6767] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6766] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6765] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6760] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6767] <... setsockopt resumed>) = 0 [pid 6766] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6760] <... futex resumed>) = 0 [pid 6767] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6766] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6760] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6767] <... futex resumed>) = 1 [pid 6766] <... openat resumed>) = 4 [pid 6765] <... futex resumed>) = 0 [pid 6760] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6756] exit_group(0 [pid 6739] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6733] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6767] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6766] write(4, "5", 1 [pid 6765] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6759] <... futex resumed>) = ? [pid 6758] <... futex resumed>) = ? [pid 6756] <... exit_group resumed>) = ? [pid 6753] <... futex resumed>) = ? [pid 6739] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6733] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6767] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6766] <... write resumed>) = 1 [pid 6765] <... futex resumed>) = 0 [pid 6759] +++ exited with 0 +++ [pid 6758] +++ exited with 0 +++ [pid 6757] +++ exited with 0 +++ [pid 6756] +++ exited with 0 +++ [pid 6739] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6733] <... futex resumed>) = 0 [pid 6767] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6766] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6765] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6753] +++ exited with 0 +++ [pid 6751] +++ exited with 0 +++ [pid 6739] <... futex resumed>) = 0 [pid 6733] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3614] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6757, si_uid=0, si_status=0, si_utime=0, si_stime=28} --- [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6756, si_uid=0, si_status=0, si_utime=0, si_stime=26} --- [pid 6739] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6766] <... setsockopt resumed>) = 0 [pid 6766] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6766] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6733] <... mmap resumed>) = 0x7fc128088000 [pid 6733] mprotect(0x7fc128089000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 6733] clone(child_stack=0x7fc1280a83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6767] <... sendto resumed>) = 1 ./strace-static-x86_64: Process 6768 attached [pid 6760] exit_group(0 [pid 6767] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6733] <... clone resumed>, parent_tid=[6768], tls=0x7fc1280a8700, child_tidptr=0x7fc1280a89d0) = 6768 [pid 6767] <... futex resumed>) = 1 [pid 6766] <... futex resumed>) = ? [pid 6765] <... futex resumed>) = 0 [pid 6760] <... exit_group resumed>) = ? [pid 6733] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3615] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6751, si_uid=0, si_status=0, si_utime=0, si_stime=21} --- [pid 6768] set_robust_list(0x7fc1280a89e0, 24 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6768] <... set_robust_list resumed>) = 0 [pid 6767] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6766] +++ exited with 0 +++ [pid 6765] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6769 attached [pid 6768] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6767] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6765] <... futex resumed>) = 0 [pid 6760] +++ exited with 0 +++ [pid 6733] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6769 [pid 6769] set_robust_list(0x5555564f35e0, 24 [pid 6768] <... setsockopt resumed>) = 0 [pid 6767] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6765] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6733] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3614] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6769] <... set_robust_list resumed>) = 0 [pid 6768] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6767] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6733] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3611] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6760, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 6769] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6768] <... futex resumed>) = 0 [pid 6767] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6733] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3615] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6770 [pid 3611] restart_syscall(<... resuming interrupted clone ...> [pid 6769] <... prctl resumed>) = 0 [pid 6768] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6767] <... futex resumed>) = 1 [pid 6765] <... futex resumed>) = 0 [pid 6739] <... futex resumed>) = 0 [pid 6733] <... futex resumed>) = 1 [pid 3614] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6771 [pid 3611] <... restart_syscall resumed>) = 0 [pid 6769] setpgid(0, 0 [pid 6767] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6765] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6739] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6733] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6771 attached [pid 6769] <... setpgid resumed>) = 0 [pid 6767] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6765] <... futex resumed>) = 0 [pid 6771] set_robust_list(0x5555564f35e0, 24 [pid 6769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6767] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6765] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6739] <... sendto resumed>) = 1 [pid 3611] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 6772 attached ./strace-static-x86_64: Process 6770 attached [pid 6771] <... set_robust_list resumed>) = 0 [pid 6769] <... openat resumed>) = 3 [pid 6767] <... openat resumed>) = 4 [pid 6739] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6771] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6769] write(3, "1000", 4 [pid 6767] write(4, "5", 1 [pid 6739] <... futex resumed>) = 1 [pid 6733] <... futex resumed>) = 0 [pid 3611] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6772 [pid 6771] <... prctl resumed>) = 0 [pid 6767] <... write resumed>) = 1 [pid 6771] setpgid(0, 0 [pid 6767] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6771] <... setpgid resumed>) = 0 [pid 6767] <... setsockopt resumed>) = 0 [pid 6733] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6770] set_robust_list(0x5555564f35e0, 24 [pid 6769] <... write resumed>) = 4 [ 240.591566][ T6759] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 240.599707][ T6759] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 240.607693][ T6759] [pid 6767] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6739] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6733] <... futex resumed>) = 0 [pid 6772] set_robust_list(0x5555564f35e0, 24 [pid 6771] <... openat resumed>) = 3 [pid 6770] <... set_robust_list resumed>) = 0 [pid 6769] close(3 [pid 6739] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6733] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6772] <... set_robust_list resumed>) = 0 [pid 6770] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6769] <... close resumed>) = 0 [pid 6739] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6733] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6772] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 6770] <... prctl resumed>) = 0 [pid 6769] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6739] <... futex resumed>) = 0 [pid 6733] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6772] <... prctl resumed>) = 0 [pid 6770] setpgid(0, 0 [pid 6769] <... futex resumed>) = 0 [pid 6739] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6733] <... futex resumed>) = 0 [pid 6772] setpgid(0, 0 [pid 6770] <... setpgid resumed>) = 0 [pid 6769] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6739] <... openat resumed>) = 4 [pid 6733] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6772] <... setpgid resumed>) = 0 [pid 6770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6769] <... mmap resumed>) = 0x7fc1280a9000 [pid 6739] write(4, "5", 1 [pid 6772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 6770] <... openat resumed>) = 3 [pid 6769] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6739] <... write resumed>) = 1 [pid 6772] <... openat resumed>) = 3 [pid 6770] write(3, "1000", 4 [pid 6769] <... mprotect resumed>) = 0 [pid 6739] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6772] write(3, "1000", 4 [pid 6770] <... write resumed>) = 4 [pid 6769] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6739] <... setsockopt resumed>) = 0 [pid 6772] <... write resumed>) = 4 [ 240.650949][ T6767] FAULT_INJECTION: forcing a failure. [ 240.650949][ T6767] name fail_futex, interval 1, probability 0, space 0, times 0 [ 240.667964][ T6767] CPU: 1 PID: 6767 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 240.678509][ T6767] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 240.688370][ T6739] FAULT_INJECTION: forcing a failure. [ 240.688370][ T6739] name fail_futex, interval 1, probability 0, space 0, times 0 [pid 6770] close(3 [pid 6739] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6772] close(3 [pid 6770] <... close resumed>) = 0 [pid 6769] <... clone resumed>, parent_tid=[6773], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6773 [pid 6765] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6772] <... close resumed>) = 0 [pid 6770] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6769] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6765] exit_group(0 [pid 6772] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6770] <... futex resumed>) = 0 [pid 6769] <... futex resumed>) = 0 [pid 6765] <... exit_group resumed>) = ? [pid 6772] <... futex resumed>) = 0 [pid 6770] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6769] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6772] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6770] <... mmap resumed>) = 0x7fc1280a9000 [pid 6772] <... mmap resumed>) = 0x7fc1280a9000 [pid 6770] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6772] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6770] <... mprotect resumed>) = 0 [pid 6772] <... mprotect resumed>) = 0 [pid 6770] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6772] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6770] <... clone resumed>, parent_tid=[6774], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6774 [pid 6772] <... clone resumed>, parent_tid=[6775], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6775 [pid 6770] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6772] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6770] <... futex resumed>) = 0 [pid 6772] <... futex resumed>) = 0 [pid 6770] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6772] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 6775 attached [pid 6775] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6775] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP./strace-static-x86_64: Process 6774 attached ) = 3 [pid 6775] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6774] set_robust_list(0x7fc1280c99e0, 24 [pid 6775] <... futex resumed>) = 1 [pid 6774] <... set_robust_list resumed>) = 0 [pid 6772] <... futex resumed>) = 0 [pid 6775] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6774] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6772] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6775] <... setsockopt resumed>) = 0 [pid 6774] <... socket resumed>) = 3 [pid 6772] <... futex resumed>) = 0 [pid 6733] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6775] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6774] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6772] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6733] exit_group(0 [pid 6775] <... futex resumed>) = 0 [pid 6774] <... futex resumed>) = 1 [pid 6772] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6770] <... futex resumed>) = 0 [pid 6733] <... exit_group resumed>) = ? [ 240.688564][ T6767] Call Trace: [ 240.688574][ T6767] [ 240.707553][ T6767] dump_stack_lvl+0xcd/0x134 [ 240.712266][ T6767] should_fail.cold+0x5/0xa [ 240.716805][ T6767] get_futex_key+0x5b2/0x1c50 [ 240.721504][ T6767] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 240.727524][ T6767] ? futex_setup_timer+0xf0/0xf0 [ 240.732510][ T6767] futex_wake+0xe4/0x490 [ 240.736781][ T6767] ? futex_wake_mark+0x1a0/0x1a0 [ 240.741731][ T6767] ? ptrace_stop.part.0+0x5ec/0xa80 [pid 6775] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6774] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6772] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6770] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6775] <... setsockopt resumed>) = 0 [pid 6774] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6772] <... futex resumed>) = 0 [pid 6770] <... futex resumed>) = 0 [pid 6775] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6774] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8 [pid 6772] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6770] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6775] <... futex resumed>) = 0 [pid 6774] <... setsockopt resumed>) = 0 [pid 6772] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6769] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 6775] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6774] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6772] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6769] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 6775] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6774] <... futex resumed>) = 1 [pid 6772] <... futex resumed>) = 0 [pid 6770] <... futex resumed>) = 0 [pid 6769] <... futex resumed>) = 0 [pid 6775] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6774] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6772] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6770] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6769] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6775] <... setsockopt resumed>) = 0 [pid 6774] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6770] <... futex resumed>) = 0 [pid 6769] <... mmap resumed>) = 0x7fc128088000 [ 240.746947][ T6767] ? do_raw_spin_lock+0x120/0x2a0 [ 240.751993][ T6767] ? rwlock_bug.part.0+0x90/0x90 [ 240.756948][ T6767] ? _raw_spin_lock_irq+0x41/0x50 [ 240.762007][ T6767] do_futex+0x266/0x300 [ 240.766188][ T6767] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 240.772110][ T6767] ? find_held_lock+0x2d/0x110 [ 240.776887][ T6767] __x64_sys_futex+0x1b0/0x4a0 [ 240.781653][ T6767] ? do_futex+0x300/0x300 [ 240.785998][ T6767] ? _raw_spin_unlock_irq+0x1f/0x40 [ 240.791205][ T6767] ? lockdep_hardirqs_on+0x79/0x100 [ 240.796424][ T6767] ? _raw_spin_unlock_irq+0x2a/0x40 [ 240.801625][ T6767] ? ptrace_notify+0xfa/0x140 [ 240.806309][ T6767] do_syscall_64+0x35/0xb0 [ 240.810734][ T6767] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 240.816643][ T6767] RIP: 0033:0x7fc128117db9 [ 240.821058][ T6767] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 240.840671][ T6767] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [pid 6775] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6774] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6770] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6769] mprotect(0x7fc128089000, 131072, PROT_READ|PROT_WRITE [pid 6775] <... futex resumed>) = 1 [pid 6772] <... futex resumed>) = 0 [pid 6771] write(3, "1000", 4 [pid 6768] <... futex resumed>) = ? [pid 6768] +++ exited with 0 +++ ./strace-static-x86_64: Process 6773 attached [pid 6773] set_robust_list(0x7fc1280c99e0, 24) = 0 [pid 6773] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP) = 3 [pid 6773] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6774] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6769] <... mprotect resumed>) = 0 [pid 6775] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6772] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6774] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6772] <... futex resumed>) = 0 [pid 6771] <... write resumed>) = 4 [pid 6775] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 240.849091][ T6767] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 240.857061][ T6767] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 240.865029][ T6767] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 240.873180][ T6767] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [ 240.881170][ T6767] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 240.889174][ T6767] [pid 6769] clone(child_stack=0x7fc1280a83f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [ 240.903911][ T6739] CPU: 1 PID: 6739 Comm: syz-executor334 Not tainted 5.19.0-rc6-syzkaller-01417-g2acd1022549e #0 [ 240.914470][ T6739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 240.924543][ T6739] Call Trace: [ 240.927838][ T6739] [ 240.930781][ T6739] dump_stack_lvl+0xcd/0x134 [ 240.935399][ T6739] should_fail.cold+0x5/0xa [ 240.939930][ T6739] get_futex_key+0x5b2/0x1c50 [ 240.944625][ T6739] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 240.950627][ T6739] ? futex_setup_timer+0xf0/0xf0 [ 240.955592][ T6739] futex_wake+0xe4/0x490 [ 240.959858][ T6739] ? futex_wake_mark+0x1a0/0x1a0 [ 240.964818][ T6739] ? ptrace_stop.part.0+0x5ec/0xa80 [ 240.970033][ T6739] ? do_raw_spin_lock+0x120/0x2a0 [ 240.975075][ T6739] ? rwlock_bug.part.0+0x90/0x90 [ 240.980028][ T6739] ? _raw_spin_lock_irq+0x41/0x50 [ 240.985078][ T6739] do_futex+0x266/0x300 [ 240.989253][ T6739] ? __ia32_sys_get_robust_list+0x3b0/0x3b0 [ 240.995168][ T6739] ? find_held_lock+0x2d/0x110 [ 240.999964][ T6739] __x64_sys_futex+0x1b0/0x4a0 [ 241.004754][ T6739] ? do_futex+0x300/0x300 [ 241.009098][ T6739] ? _raw_spin_unlock_irq+0x1f/0x40 [ 241.014321][ T6739] ? lockdep_hardirqs_on+0x79/0x100 [ 241.019532][ T6739] ? _raw_spin_unlock_irq+0x2a/0x40 [ 241.024737][ T6739] ? ptrace_notify+0xfa/0x140 [ 241.029424][ T6739] do_syscall_64+0x35/0xb0 [ 241.033844][ T6739] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 241.039747][ T6739] RIP: 0033:0x7fc128117db9 [ 241.044165][ T6739] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 241.063779][ T6739] RSP: 002b:00007fc1280c92e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 241.072211][ T6739] RAX: ffffffffffffffda RBX: 00007fc1281a04a0 RCX: 00007fc128117db9 [ 241.080284][ T6739] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc1281a04ac [ 241.088257][ T6739] RBP: 00007fc12816d184 R08: 0000000000000035 R09: 0000000000000035 [ 241.096228][ T6739] R10: 0000000000000009 R11: 0000000000000246 R12: 00007fc1280c92f0 [pid 6773] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6775] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6774] <... futex resumed>) = 1 [pid 6772] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6771] close(3 [pid 6770] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6776 attached [pid 6776] set_robust_list(0x7fc1280a89e0, 24) = 0 [pid 6776] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6739] <... futex resumed>) = ? [pid 6774] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6771] <... close resumed>) = 0 [pid 6770] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6769] <... clone resumed>, parent_tid=[6776], tls=0x7fc1280a8700, child_tidptr=0x7fc1280a89d0) = 6776 [pid 6774] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6771] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6770] <... futex resumed>) = 0 [pid 6769] futex(0x7fc1281a04b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6770] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6774] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6771] <... futex resumed>) = 0 [pid 6769] <... futex resumed>) = 1 [pid 6776] <... futex resumed>) = 0 [pid 6776] setsockopt(3, SOL_SCTP, SCTP_AUTH_SUPPORTED, "\x1a\x00\x00\x00\x02\x00\x00\x00", 8) = 0 [pid 6776] futex(0x7fc1281a04bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6776] futex(0x7fc1281a04b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6739] +++ exited with 0 +++ [pid 6733] +++ exited with 0 +++ [pid 6767] <... futex resumed>) = ? [pid 6775] <... sendto resumed>) = 1 [pid 6774] <... setsockopt resumed>) = 0 [pid 6771] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 6769] futex(0x7fc1281a04bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6774] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6771] <... mmap resumed>) = 0x7fc1280a9000 [pid 6769] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6767] +++ exited with 0 +++ [pid 6765] +++ exited with 0 +++ [pid 3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6733, si_uid=0, si_status=0, si_utime=0, si_stime=24} --- [pid 3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=6765, si_uid=0, si_status=0, si_utime=0, si_stime=25} --- [pid 3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6774] <... futex resumed>) = 1 [pid 6771] mprotect(0x7fc1280aa000, 131072, PROT_READ|PROT_WRITE [pid 6769] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] restart_syscall(<... resuming interrupted clone ...> [pid 6770] <... futex resumed>) = 0 [pid 6774] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3610] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6777 [pid 6775] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6772] <... futex resumed>) = 0 [pid 6772] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 6772] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6775] <... futex resumed>) = 1 [pid 6775] sendto(3, "\x01", 1, 0, NULL, 0) = 1 [pid 6770] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6773] <... futex resumed>) = 0 [pid 6769] <... futex resumed>) = 1 [pid 6770] <... futex resumed>) = 0 [pid 3608] <... restart_syscall resumed>) = 0 [pid 6774] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6773] setsockopt(3, SOL_SCTP, SCTP_SOCKOPT_BINDX_ADD, "\x0a\x00\x4e\x23\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 28 [pid 6771] <... mprotect resumed>) = 0 [pid 6770] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6769] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6775] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6774] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6773] <... setsockopt resumed>) = -1 EADDRINUSE (Address already in use) [pid 6771] clone(child_stack=0x7fc1280c93f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 6775] <... futex resumed>) = 1 [pid 6773] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6772] <... futex resumed>) = 0 [pid 6775] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6773] <... futex resumed>) = 1 [pid 6772] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6769] <... futex resumed>) = 0 [pid 6775] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6773] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6772] <... futex resumed>) = 0 [pid 6769] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6775] openat(AT_FDCWD, "/proc/thread-self/fail-nth", O_RDWR [pid 6774] <... sendto resumed>) = 1 [pid 6773] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6772] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6769] <... futex resumed>) = 0 [pid 3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 6775] <... openat resumed>) = 4 [pid 6774] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6773] setsockopt(3, SOL_SCTP, SCTP_AUTH_CHUNK, "\x00", 1 [pid 6771] <... clone resumed>, parent_tid=[6778], tls=0x7fc1280c9700, child_tidptr=0x7fc1280c99d0) = 6778 [pid 6769] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6775] write(4, "5", 1 [pid 6774] <... futex resumed>) = 1 [pid 6773] <... setsockopt resumed>) = 0 [pid 6771] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6770] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6778 attached [pid 6775] <... write resumed>) = 1 [pid 6774] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6773] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6771] <... futex resumed>) = 0 [pid 6770] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3608] <... clone resumed>, child_tidptr=0x5555564f35d0) = 6779 [pid 6778] set_robust_list(0x7fc1280c99e0, 24 [pid 6775] setsockopt(3, SOL_SCTP, SCTP_AUTH_KEY, "\x00\x00\x00\x00\x00\x00\x01\x00\x8b", 9 [pid 6774] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6773] <... futex resumed>) = 1 [pid 6771] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6770] <... futex resumed>) = 0 [pid 6769] <... futex resumed>) = 0 [pid 6778] <... set_robust_list resumed>) = 0 [pid 6775] <... setsockopt resumed>) = 0 [pid 6774] sendto(3, "\x01", 1, 0, NULL, 0 [pid 6773] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6770] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6769] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 6778] socket(AF_INET6, SOCK_STREAM, IPPROTO_SCTP [pid 6775] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6774] <... sendto resumed>) = -1 ECONNREFUSED (Connection refused) [pid 6773] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 6769] <... futex resumed>) = 0 [pid 6778] <... socket resumed>) = 3 [pid 6775] <... futex resumed>) = 1 [pid 6774] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6773] sendto(3, "\xb9", 1, 0, {sa_family=AF_INET6, sin6_port=htons(20003), sin6_flowinfo=htonl(0), inet_pton(AF_INET6, "::1", &sin6_addr), sin6_scope_id=0}, 28 [pid 6772] <... futex resumed>) = 0 [pid 6769] futex(0x7fc1281a04ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 6778] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6775] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6774] <... futex resumed>) = 1 [pid 6773] <... sendto resumed>) = 1 [pid 6772] exit_group(0 [pid 6770] <... futex resumed>) = 0 ./strace-static-x86_64: Process 6779 attached [pid 6778] <... futex resumed>) = 1 [pid 6775] <... futex resumed>) = ? [pid 6774] futex(0x7fc1281a04a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 6773] futex(0x7fc1281a04ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 6772] <... exit_group resumed>) = ? [ 241.104197][ T6739] R13: 00007fc1281a04a8 R14: 0100000000000000 R15: 0000000000000001 [ 241.112188][ T6739] [pid 6771] <... futex resumed>) = 0 [pid 6770] futex(0x7fc1281a04a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 6777 attached [pid