./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3405840899 <...> Warning: Permanently added '10.128.1.70' (ED25519) to the list of known hosts. execve("./syz-executor3405840899", ["./syz-executor3405840899"], 0x7ffdb31ccfc0 /* 10 vars */) = 0 brk(NULL) = 0x5555737fe000 brk(0x5555737fed40) = 0x5555737fed40 arch_prctl(ARCH_SET_FS, 0x5555737fe3c0) = 0 set_tid_address(0x5555737fe690) = 5092 set_robust_list(0x5555737fe6a0, 24) = 0 rseq(0x5555737fece0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3405840899", 4096) = 28 getrandom("\xe5\x8f\x23\x74\x1a\x6f\x08\x07", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555737fed40 brk(0x55557381fd40) = 0x55557381fd40 brk(0x555573820000) = 0x555573820000 mprotect(0x7f6627428000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555737fe690) = 5093 ./strace-static-x86_64: Process 5093 attached [pid 5092] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5093] set_robust_list(0x5555737fe6a0, 24) = 0 ./strace-static-x86_64: Process 5094 attached [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5092] <... clone resumed>, child_tidptr=0x5555737fe690) = 5094 [pid 5094] set_robust_list(0x5555737fe6a0, 24 [pid 5092] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5094] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5095 attached [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5095] set_robust_list(0x5555737fe6a0, 24) = 0 [pid 5092] <... clone resumed>, child_tidptr=0x5555737fe690) = 5096 ./strace-static-x86_64: Process 5096 attached [pid 5092] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5096] set_robust_list(0x5555737fe6a0, 24 [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5095] setpgid(0, 0 [pid 5093] <... clone resumed>, child_tidptr=0x5555737fe690) = 5095 [pid 5095] <... setpgid resumed>) = 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5095] write(3, "1000", 4./strace-static-x86_64: Process 5097 attached [pid 5092] <... clone resumed>, child_tidptr=0x5555737fe690) = 5097 executing program [pid 5096] <... set_robust_list resumed>) = 0 [pid 5095] <... write resumed>) = 4 ./strace-static-x86_64: Process 5098 attached [pid 5092] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5097] set_robust_list(0x5555737fe6a0, 24 [pid 5095] close(3 [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5098] set_robust_list(0x5555737fe6a0, 24 [pid 5095] <... close resumed>) = 0 [pid 5098] <... set_robust_list resumed>) = 0 [pid 5095] write(1, "executing program\n", 18 [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5095] <... write resumed>) = 18 [pid 5095] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5100 attached ./strace-static-x86_64: Process 5099 attached [pid 5098] <... prctl resumed>) = 0 [pid 5097] <... set_robust_list resumed>) = 0 [pid 5095] <... futex resumed>) = 0 [pid 5094] <... clone resumed>, child_tidptr=0x5555737fe690) = 5098 [pid 5100] set_robust_list(0x5555737fe6a0, 24 [pid 5099] set_robust_list(0x5555737fe6a0, 24 [pid 5098] setpgid(0, 0 [pid 5097] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5095] rt_sigaction(SIGRT_1, {sa_handler=0x7f66273ca450, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f66273bbad0}, [pid 5100] <... set_robust_list resumed>) = 0 [pid 5099] <... set_robust_list resumed>) = 0 [pid 5098] <... setpgid resumed>) = 0 [pid 5095] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5100] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5092] <... clone resumed>, child_tidptr=0x5555737fe690) = 5100 [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5096] <... clone resumed>, child_tidptr=0x5555737fe690) = 5099 [pid 5095] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], ./strace-static-x86_64: Process 5101 attached [pid 5097] <... clone resumed>, child_tidptr=0x5555737fe690) = 5101 [pid 5095] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5099] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 5102 attached [pid 5101] set_robust_list(0x5555737fe6a0, 24 [pid 5100] <... clone resumed>, child_tidptr=0x5555737fe690) = 5102 [pid 5099] setpgid(0, 0 [pid 5098] <... openat resumed>) = 3 [pid 5095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5102] set_robust_list(0x5555737fe6a0, 24 [pid 5101] <... set_robust_list resumed>) = 0 [pid 5099] <... setpgid resumed>) = 0 [pid 5098] write(3, "1000", 4 [pid 5095] <... mmap resumed>) = 0x7f662733f000 [pid 5102] <... set_robust_list resumed>) = 0 [pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5098] <... write resumed>) = 4 [pid 5095] mprotect(0x7f6627340000, 131072, PROT_READ|PROT_WRITE [pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5101] <... prctl resumed>) = 0 [pid 5102] <... prctl resumed>) = 0 [pid 5102] setpgid(0, 0 [pid 5099] <... openat resumed>) = 3 [pid 5098] close(3 [pid 5095] <... mprotect resumed>) = 0 [pid 5101] setpgid(0, 0 [pid 5098] <... close resumed>) = 0 [pid 5102] <... setpgid resumed>) = 0 [pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5101] <... setpgid resumed>) = 0 executing program [pid 5098] write(1, "executing program\n", 18 [pid 5095] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5099] write(3, "1000", 4 [pid 5098] <... write resumed>) = 18 [pid 5095] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5099] <... write resumed>) = 4 [pid 5098] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5102] <... openat resumed>) = 3 [pid 5099] close(3 [pid 5101] <... openat resumed>) = 3 [pid 5098] <... futex resumed>) = 0 [pid 5095] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f662735f990, parent_tid=0x7f662735f990, exit_signal=0, stack=0x7f662733f000, stack_size=0x20300, tls=0x7f662735f6c0} [pid 5102] write(3, "1000", 4 [pid 5099] <... close resumed>) = 0 [pid 5102] <... write resumed>) = 4 [pid 5102] close(3) = 0 executing program [pid 5102] write(1, "executing program\n", 18) = 18 [pid 5102] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5102] rt_sigaction(SIGRT_1, {sa_handler=0x7f66273ca450, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f66273bbad0}, NULL, 8) = 0 ./strace-static-x86_64: Process 5103 attached [pid 5102] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], executing program [pid 5101] write(3, "1000", 4 [pid 5099] write(1, "executing program\n", 18 [pid 5098] rt_sigaction(SIGRT_1, {sa_handler=0x7f66273ca450, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f66273bbad0}, [pid 5099] <... write resumed>) = 18 [pid 5098] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5099] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5099] <... futex resumed>) = 0 [pid 5098] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5095] <... clone3 resumed> => {parent_tid=[5103]}, 88) = 5103 [pid 5099] rt_sigaction(SIGRT_1, {sa_handler=0x7f66273ca450, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f66273bbad0}, [pid 5098] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5099] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5098] <... mmap resumed>) = 0x7f662733f000 [pid 5095] rt_sigprocmask(SIG_SETMASK, [], [pid 5099] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5098] mprotect(0x7f6627340000, 131072, PROT_READ|PROT_WRITE [pid 5103] rseq(0x7f662735ffe0, 0x20, 0, 0x53053053 [pid 5102] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5101] <... write resumed>) = 4 [pid 5099] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5098] <... mprotect resumed>) = 0 [pid 5095] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5103] <... rseq resumed>) = 0 [pid 5102] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5101] close(3 [pid 5099] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5095] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] set_robust_list(0x7f662735f9a0, 24 [pid 5102] <... mmap resumed>) = 0x7f662733f000 [pid 5101] <... close resumed>) = 0 [pid 5099] <... mmap resumed>) = 0x7f662733f000 [pid 5098] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5095] <... futex resumed>) = 0 [pid 5103] <... set_robust_list resumed>) = 0 [pid 5102] mprotect(0x7f6627340000, 131072, PROT_READ|PROT_WRITE executing program [pid 5101] write(1, "executing program\n", 18 [pid 5099] mprotect(0x7f6627340000, 131072, PROT_READ|PROT_WRITE [pid 5103] rt_sigprocmask(SIG_SETMASK, [], [pid 5102] <... mprotect resumed>) = 0 [pid 5101] <... write resumed>) = 18 [pid 5098] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5095] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5103] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5102] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5101] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] <... mprotect resumed>) = 0 [pid 5098] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f662735f990, parent_tid=0x7f662735f990, exit_signal=0, stack=0x7f662733f000, stack_size=0x20300, tls=0x7f662735f6c0} [pid 5103] socket(AF_PPPOX, SOCK_STREAM, 1 [pid 5102] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5101] <... futex resumed>) = 0 [pid 5103] <... socket resumed>) = 3 [pid 5102] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f662735f990, parent_tid=0x7f662735f990, exit_signal=0, stack=0x7f662733f000, stack_size=0x20300, tls=0x7f662735f6c0} [pid 5101] rt_sigaction(SIGRT_1, {sa_handler=0x7f66273ca450, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f66273bbad0}, [pid 5103] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5095] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5103] <... futex resumed>) = 0 [pid 5099] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5103] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5101] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], ./strace-static-x86_64: Process 5105 attached ./strace-static-x86_64: Process 5104 attached [pid 5102] <... clone3 resumed> => {parent_tid=[5104]}, 88) = 5104 [pid 5101] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5099] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5095] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] rseq(0x7f662735ffe0, 0x20, 0, 0x53053053 [pid 5104] rseq(0x7f662735ffe0, 0x20, 0, 0x53053053 [pid 5103] <... futex resumed>) = 0 [pid 5102] rt_sigprocmask(SIG_SETMASK, [], [pid 5101] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5099] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f662735f990, parent_tid=0x7f662735f990, exit_signal=0, stack=0x7f662733f000, stack_size=0x20300, tls=0x7f662735f6c0} [pid 5098] <... clone3 resumed> => {parent_tid=[5105]}, 88) = 5105 [pid 5095] <... futex resumed>) = 1 [pid 5105] <... rseq resumed>) = 0 [pid 5104] <... rseq resumed>) = 0 [pid 5103] socket(AF_PPPOX, SOCK_STREAM, 1 [pid 5102] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5101] <... mmap resumed>) = 0x7f662733f000 [pid 5095] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 5106 attached [pid 5105] set_robust_list(0x7f662735f9a0, 24 [pid 5104] set_robust_list(0x7f662735f9a0, 24 [pid 5103] <... socket resumed>) = 4 [pid 5102] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] mprotect(0x7f6627340000, 131072, PROT_READ|PROT_WRITE [pid 5098] rt_sigprocmask(SIG_SETMASK, [], [pid 5106] rseq(0x7f662735ffe0, 0x20, 0, 0x53053053 [pid 5105] <... set_robust_list resumed>) = 0 [pid 5104] <... set_robust_list resumed>) = 0 [pid 5103] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5102] <... futex resumed>) = 0 [pid 5101] <... mprotect resumed>) = 0 [pid 5099] <... clone3 resumed> => {parent_tid=[5106]}, 88) = 5106 [pid 5098] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5106] <... rseq resumed>) = 0 [pid 5105] rt_sigprocmask(SIG_SETMASK, [], [pid 5104] rt_sigprocmask(SIG_SETMASK, [], [pid 5103] <... futex resumed>) = 1 [pid 5102] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5101] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5099] rt_sigprocmask(SIG_SETMASK, [], [pid 5098] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... futex resumed>) = 0 [pid 5106] set_robust_list(0x7f662735f9a0, 24 [pid 5105] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5104] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5103] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5101] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5099] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5098] <... futex resumed>) = 0 [pid 5095] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] <... set_robust_list resumed>) = 0 [pid 5105] socket(AF_PPPOX, SOCK_STREAM, 1 [pid 5104] socket(AF_PPPOX, SOCK_STREAM, 1 [pid 5103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5101] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f662735f990, parent_tid=0x7f662735f990, exit_signal=0, stack=0x7f662733f000, stack_size=0x20300, tls=0x7f662735f6c0} [pid 5099] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... futex resumed>) = 0 [pid 5106] rt_sigprocmask(SIG_SETMASK, [], [pid 5105] <... socket resumed>) = 3 [pid 5104] <... socket resumed>) = 3 [pid 5103] socket(AF_INET, SOCK_DGRAM, IPPROTO_IP [pid 5099] <... futex resumed>) = 0 [pid 5095] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5104] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 5107 attached [pid 5106] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5105] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] <... futex resumed>) = 1 [pid 5103] <... socket resumed>) = 5 [pid 5102] <... futex resumed>) = 0 [pid 5099] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5107] rseq(0x7f662735ffe0, 0x20, 0, 0x53053053 [pid 5106] socket(AF_PPPOX, SOCK_STREAM, 1 [pid 5105] <... futex resumed>) = 1 [pid 5104] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5103] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5102] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] <... futex resumed>) = 0 [pid 5107] <... rseq resumed>) = 0 [pid 5106] <... socket resumed>) = 3 [pid 5105] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5103] <... futex resumed>) = 1 [pid 5102] <... futex resumed>) = 0 [pid 5101] <... clone3 resumed> => {parent_tid=[5107]}, 88) = 5107 [pid 5098] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... futex resumed>) = 0 [pid 5107] set_robust_list(0x7f662735f9a0, 24 [pid 5106] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5104] socket(AF_PPPOX, SOCK_STREAM, 1 [pid 5103] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5102] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5101] rt_sigprocmask(SIG_SETMASK, [], [pid 5098] <... futex resumed>) = 0 [pid 5095] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... set_robust_list resumed>) = 0 [pid 5106] <... futex resumed>) = 1 [pid 5105] socket(AF_PPPOX, SOCK_STREAM, 1 [pid 5104] <... socket resumed>) = 4 [pid 5103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5101] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5099] <... futex resumed>) = 0 [pid 5098] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... futex resumed>) = 0 [pid 5107] rt_sigprocmask(SIG_SETMASK, [], [pid 5106] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5105] <... socket resumed>) = 4 [pid 5104] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] connect(4, {sa_family=AF_PPPOX, sa_data="\x01\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\x00\x00\x00\x00"}, 50 [pid 5101] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5107] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5106] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5105] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] <... futex resumed>) = 1 [pid 5103] <... connect resumed>) = 0 [pid 5102] <... futex resumed>) = 0 [pid 5101] <... futex resumed>) = 0 [pid 5099] <... futex resumed>) = 0 [pid 5107] socket(AF_PPPOX, SOCK_STREAM, 1 [pid 5106] socket(AF_PPPOX, SOCK_STREAM, 1 [pid 5105] <... futex resumed>) = 1 [pid 5104] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5099] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5098] <... futex resumed>) = 0 [pid 5106] <... socket resumed>) = 4 [pid 5103] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5102] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5107] <... socket resumed>) = 3 [pid 5106] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5103] <... futex resumed>) = 1 [pid 5102] <... futex resumed>) = 0 [pid 5099] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5098] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5095] <... futex resumed>) = 0 [pid 5107] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] <... futex resumed>) = 0 [pid 5105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5104] socket(AF_INET, SOCK_DGRAM, IPPROTO_IP [pid 5103] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5102] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5099] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] <... futex resumed>) = 0 [pid 5095] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... futex resumed>) = 1 [pid 5106] socket(AF_INET, SOCK_DGRAM, IPPROTO_IP [pid 5105] socket(AF_INET, SOCK_DGRAM, IPPROTO_IP [pid 5104] <... socket resumed>) = 5 [pid 5103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5101] <... futex resumed>) = 0 [pid 5099] <... futex resumed>) = 0 [pid 5098] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... futex resumed>) = 0 [pid 5107] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5106] <... socket resumed>) = 5 [pid 5105] <... socket resumed>) = 5 [pid 5104] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] connect(3, {sa_family=AF_PPPOX, sa_data="\x01\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x02\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x01\x00\x02\x00\x00\x00\x00\x00"}, 38 [pid 5101] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5107] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5106] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] <... futex resumed>) = 1 [pid 5103] <... connect resumed>) = 0 [pid 5102] <... futex resumed>) = 0 [pid 5101] <... futex resumed>) = 0 [pid 5099] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5107] socket(AF_PPPOX, SOCK_STREAM, 1 [pid 5106] <... futex resumed>) = 0 [pid 5105] <... futex resumed>) = 1 [pid 5104] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5099] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] <... futex resumed>) = 0 [pid 5107] <... socket resumed>) = 4 [pid 5105] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5099] <... futex resumed>) = 0 [pid 5107] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5099] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5098] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] connect(4, {sa_family=AF_PPPOX, sa_data="\x01\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\x00\x00\x00\x00"}, 50 [pid 5107] <... futex resumed>) = 0 [pid 5106] connect(4, {sa_family=AF_PPPOX, sa_data="\x01\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\x00\x00\x00\x00"}, 50 [pid 5103] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... connect resumed>) = -1 EEXIST (File exists) [pid 5102] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5101] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5098] <... futex resumed>) = 0 [pid 5107] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5106] <... connect resumed>) = -1 EEXIST (File exists) [pid 5105] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] <... futex resumed>) = 0 [pid 5103] <... futex resumed>) = 1 [pid 5102] <... futex resumed>) = 1 [pid 5101] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5098] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5095] <... futex resumed>) = 0 [pid 5106] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = 0 [pid 5104] connect(4, {sa_family=AF_PPPOX, sa_data="\x01\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\x00\x00\x00\x00"}, 50 [pid 5103] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5102] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5101] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5095] exit_group(0 [pid 5107] <... futex resumed>) = 0 [pid 5106] <... futex resumed>) = 1 [pid 5105] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] <... connect resumed>) = -1 EEXIST (File exists) [pid 5101] <... futex resumed>) = 1 [pid 5099] <... futex resumed>) = 0 [pid 5098] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] socket(AF_INET, SOCK_DGRAM, IPPROTO_IP [pid 5106] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5104] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5103] <... futex resumed>) = ? [pid 5101] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5099] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] <... futex resumed>) = 0 [pid 5095] <... exit_group resumed>) = ? [pid 5107] <... socket resumed>) = 5 [pid 5106] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5105] connect(3, {sa_family=AF_PPPOX, sa_data="\x01\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x02\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x01\x00\x02\x00\x00\x00\x00\x00"}, 38 [pid 5104] <... futex resumed>) = 1 [pid 5103] +++ exited with 0 +++ [pid 5102] <... futex resumed>) = 0 [pid 5099] <... futex resumed>) = 0 [pid 5098] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5107] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5106] connect(3, {sa_family=AF_PPPOX, sa_data="\x01\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x02\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x01\x00\x02\x00\x00\x00\x00\x00"}, 38 [pid 5105] <... connect resumed>) = -1 ENODEV (No such device) [pid 5104] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5102] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5099] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5107] <... futex resumed>) = 1 [pid 5106] <... connect resumed>) = -1 ENODEV (No such device) [pid 5105] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5104] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5102] <... futex resumed>) = 0 [pid 5101] <... futex resumed>) = 0 [pid 5095] +++ exited with 0 +++ [pid 5107] connect(4, {sa_family=AF_PPPOX, sa_data="\x01\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\x00\x00\x00\x00"}, 50 [pid 5106] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = 1 [pid 5104] connect(3, {sa_family=AF_PPPOX, sa_data="\x01\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x02\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x01\x00\x02\x00\x00\x00\x00\x00"}, 38 [pid 5102] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5101] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] <... futex resumed>) = 0 [pid 5093] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5107] <... connect resumed>) = 0 [pid 5105] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] <... connect resumed>) = -1 ENOENT (No such file or directory) [pid 5098] exit_group(0 [pid 5107] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5105] <... futex resumed>) = ? [pid 5104] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5098] <... exit_group resumed>) = ? [pid 5107] <... futex resumed>) = 0 [pid 5106] <... futex resumed>) = 1 [pid 5105] +++ exited with 0 +++ [pid 5104] <... futex resumed>) = 1 [pid 5102] <... futex resumed>) = 0 [pid 5101] <... futex resumed>) = 0 [pid 5099] <... futex resumed>) = 0 [pid 5093] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5108 attached [pid 5107] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5106] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5104] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5102] exit_group(0 [pid 5101] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5099] exit_group(0 [pid 5098] +++ exited with 0 +++ [pid 5106] <... futex resumed>) = ? [pid 5104] <... futex resumed>) = ? [pid 5102] <... exit_group resumed>) = ? [pid 5101] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5099] <... exit_group resumed>) = ? [pid 5108] set_robust_list(0x5555737fe6a0, 24 [pid 5093] <... clone resumed>, child_tidptr=0x5555737fe690) = 5108 [pid 5106] +++ exited with 0 +++ [pid 5101] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5107] <... futex resumed>) = 0 [pid 5101] <... futex resumed>) = 1 [pid 5107] connect(3, {sa_family=AF_PPPOX, sa_data="\x01\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x02\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x01\x00\x02\x00\x00\x00\x00\x00"}, 38 [pid 5101] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5107] <... connect resumed>) = 0 [pid 5107] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 5101] <... futex resumed>) = 0 [pid 5107] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5101] exit_group(0 [pid 5107] <... futex resumed>) = ? [pid 5101] <... exit_group resumed>) = ? [pid 5108] <... set_robust_list resumed>) = 0 [pid 5104] +++ exited with 0 +++ [pid 5102] +++ exited with 0 +++ [pid 5099] +++ exited with 0 +++ [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5100] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5100] restart_syscall(<... resuming interrupted clone ...> [pid 5096] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5096] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 5109 attached [pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5109] set_robust_list(0x5555737fe6a0, 24 [pid 5094] <... clone resumed>, child_tidptr=0x5555737fe690) = 5109 [pid 5108] <... prctl resumed>) = 0 [pid 5109] <... set_robust_list resumed>) = 0 [pid 5108] setpgid(0, 0 [pid 5107] +++ exited with 0 +++ [pid 5101] +++ exited with 0 +++ [pid 5097] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5109] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5108] <... setpgid resumed>) = 0 [pid 5097] restart_syscall(<... resuming interrupted clone ...> [pid 5096] <... restart_syscall resumed>) = 0 [pid 5097] <... restart_syscall resumed>) = 0 [pid 5109] <... prctl resumed>) = 0 [pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5096] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5109] setpgid(0, 0 [pid 5108] <... openat resumed>) = 3 [pid 5100] <... restart_syscall resumed>) = 0 [pid 5097] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5109] <... setpgid resumed>) = 0 [pid 5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5108] write(3, "1000", 4) = 4 [pid 5109] <... openat resumed>) = 3 [pid 5108] close(3) = 0 [pid 5100] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program ./strace-static-x86_64: Process 5111 attached ./strace-static-x86_64: Process 5110 attached [pid 5109] write(3, "1000", 4 [pid 5108] write(1, "executing program\n", 18 [pid 5110] set_robust_list(0x5555737fe6a0, 24 [pid 5111] set_robust_list(0x5555737fe6a0, 24 [pid 5096] <... clone resumed>, child_tidptr=0x5555737fe690) = 5110 [pid 5097] <... clone resumed>, child_tidptr=0x5555737fe690) = 5111 [pid 5111] <... set_robust_list resumed>) = 0 [pid 5110] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 5112 attached [pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5109] <... write resumed>) = 4 [pid 5108] <... write resumed>) = 18 [pid 5112] set_robust_list(0x5555737fe6a0, 24 [pid 5111] <... prctl resumed>) = 0 [pid 5110] <... prctl resumed>) = 0 [pid 5109] close(3 [pid 5108] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] <... clone resumed>, child_tidptr=0x5555737fe690) = 5112 [pid 5112] <... set_robust_list resumed>) = 0 [pid 5111] setpgid(0, 0 [pid 5110] setpgid(0, 0 [pid 5109] <... close resumed>) = 0 [pid 5108] <... futex resumed>) = 0 [pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program [pid 5111] <... setpgid resumed>) = 0 [pid 5110] <... setpgid resumed>) = 0 [pid 5109] write(1, "executing program\n", 18 [pid 5108] rt_sigaction(SIGRT_1, {sa_handler=0x7f66273ca450, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f66273bbad0}, [pid 5112] <... prctl resumed>) = 0 [pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5109] <... write resumed>) = 18 [pid 5108] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5112] setpgid(0, 0 [pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5109] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5108] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5112] <... setpgid resumed>) = 0 [pid 5111] <... openat resumed>) = 3 [pid 5110] <... openat resumed>) = 3 [pid 5109] <... futex resumed>) = 0 [pid 5108] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5109] rt_sigaction(SIGRT_1, {sa_handler=0x7f66273ca450, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f66273bbad0}, [pid 5108] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5109] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5108] <... mmap resumed>) = 0x7f662733f000 [pid 5112] <... openat resumed>) = 3 [pid 5109] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5108] mprotect(0x7f6627340000, 131072, PROT_READ|PROT_WRITE [pid 5112] write(3, "1000", 4 [pid 5109] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5108] <... mprotect resumed>) = 0 [pid 5112] <... write resumed>) = 4 executing program executing program [pid 5112] close(3 [pid 5111] write(3, "1000", 4 [pid 5110] write(3, "1000", 4 [pid 5109] <... mmap resumed>) = 0x7f662733f000 [pid 5108] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5111] <... write resumed>) = 4 [pid 5110] <... write resumed>) = 4 [pid 5111] close(3 [pid 5110] close(3 [pid 5111] <... close resumed>) = 0 [pid 5110] <... close resumed>) = 0 [pid 5111] write(1, "executing program\n", 18 [pid 5110] write(1, "executing program\n", 18 [pid 5111] <... write resumed>) = 18 [pid 5110] <... write resumed>) = 18 [pid 5112] <... close resumed>) = 0 [pid 5111] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000executing program [pid 5110] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] mprotect(0x7f6627340000, 131072, PROT_READ|PROT_WRITE [pid 5108] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5112] write(1, "executing program\n", 18 [pid 5111] <... futex resumed>) = 0 [pid 5110] <... futex resumed>) = 0 [pid 5109] <... mprotect resumed>) = 0 [pid 5108] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f662735f990, parent_tid=0x7f662735f990, exit_signal=0, stack=0x7f662733f000, stack_size=0x20300, tls=0x7f662735f6c0}./strace-static-x86_64: Process 5113 attached [pid 5112] <... write resumed>) = 18 [pid 5111] rt_sigaction(SIGRT_1, {sa_handler=0x7f66273ca450, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f66273bbad0}, [pid 5110] rt_sigaction(SIGRT_1, {sa_handler=0x7f66273ca450, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f66273bbad0}, [pid 5109] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5112] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5108] <... clone3 resumed> => {parent_tid=[5113]}, 88) = 5113 [pid 5112] <... futex resumed>) = 0 [pid 5109] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f662735f990, parent_tid=0x7f662735f990, exit_signal=0, stack=0x7f662733f000, stack_size=0x20300, tls=0x7f662735f6c0} [pid 5108] rt_sigprocmask(SIG_SETMASK, [], [pid 5112] rt_sigaction(SIGRT_1, {sa_handler=0x7f66273ca450, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f66273bbad0}, [pid 5108] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5112] <... rt_sigaction resumed>NULL, 8) = 0 ./strace-static-x86_64: Process 5114 attached [pid 5112] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5108] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] rseq(0x7f662735ffe0, 0x20, 0, 0x53053053 [pid 5112] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5109] <... clone3 resumed> => {parent_tid=[5114]}, 88) = 5114 [pid 5108] <... futex resumed>) = 0 [pid 5114] <... rseq resumed>) = 0 [pid 5112] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5109] rt_sigprocmask(SIG_SETMASK, [], [pid 5108] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5114] set_robust_list(0x7f662735f9a0, 24 [pid 5112] <... mmap resumed>) = 0x7f662733f000 [pid 5109] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5114] <... set_robust_list resumed>) = 0 [pid 5112] mprotect(0x7f6627340000, 131072, PROT_READ|PROT_WRITE [pid 5109] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] rt_sigprocmask(SIG_SETMASK, [], [pid 5112] <... mprotect resumed>) = 0 [pid 5109] <... futex resumed>) = 0 [pid 5114] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5112] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5109] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5114] socket(AF_PPPOX, SOCK_STREAM, 1) = 3 [pid 5112] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5114] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5112] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f662735f990, parent_tid=0x7f662735f990, exit_signal=0, stack=0x7f662733f000, stack_size=0x20300, tls=0x7f662735f6c0} [pid 5114] <... futex resumed>) = 1 [pid 5109] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5115 attached [pid 5114] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5109] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5115] rseq(0x7f662735ffe0, 0x20, 0, 0x53053053 [pid 5114] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5112] <... clone3 resumed> => {parent_tid=[5115]}, 88) = 5115 [pid 5109] <... futex resumed>) = 0 [pid 5115] <... rseq resumed>) = 0 [pid 5114] socket(AF_PPPOX, SOCK_STREAM, 1 [ 56.364466][ T2523] ================================================================== [ 56.372571][ T2523] BUG: KASAN: slab-use-after-free in l2tp_session_delete+0x28/0x9e0 [ 56.380603][ T2523] Write of size 8 at addr ffff88802aaf5808 by task kworker/u8:11/2523 [ 56.388768][ T2523] [ 56.391107][ T2523] CPU: 0 PID: 2523 Comm: kworker/u8:11 Not tainted 6.10.0-rc4-syzkaller-00869-g185d72112b95 #0 [ 56.401435][ T2523] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 [ 56.411499][ T2523] Workqueue: l2tp l2tp_tunnel_del_work [ 56.416993][ T2523] Call Trace: [ 56.420278][ T2523] [ 56.423219][ T2523] dump_stack_lvl+0x241/0x360 [ 56.427917][ T2523] ? __pfx_dump_stack_lvl+0x10/0x10 [ 56.433131][ T2523] ? __pfx__printk+0x10/0x10 [ 56.437736][ T2523] ? _printk+0xd5/0x120 [ 56.441906][ T2523] ? __virt_addr_valid+0x183/0x520 [ 56.447033][ T2523] ? __virt_addr_valid+0x183/0x520 [ 56.452154][ T2523] print_report+0x169/0x550 [ 56.456648][ T2523] ? __virt_addr_valid+0x183/0x520 [ 56.461748][ T2523] ? __virt_addr_valid+0x183/0x520 [ 56.466869][ T2523] ? __virt_addr_valid+0x44e/0x520 [ 56.471992][ T2523] ? __phys_addr+0xba/0x170 [ 56.476512][ T2523] ? l2tp_session_delete+0x28/0x9e0 [ 56.481727][ T2523] kasan_report+0x143/0x180 [ 56.486248][ T2523] ? l2tp_session_delete+0x28/0x9e0 [ 56.491465][ T2523] kasan_check_range+0x282/0x290 [ 56.496419][ T2523] l2tp_session_delete+0x28/0x9e0 [ 56.501462][ T2523] ? l2tp_tunnel_del_work+0x1d3/0x330 [ 56.506851][ T2523] l2tp_tunnel_del_work+0x1cb/0x330 [ 56.512068][ T2523] ? process_scheduled_works+0x945/0x1830 [ 56.517797][ T2523] process_scheduled_works+0xa2c/0x1830 [ 56.523366][ T2523] ? __pfx_process_scheduled_works+0x10/0x10 [ 56.529333][ T2523] ? assign_work+0x364/0x3d0 [ 56.533919][ T2523] worker_thread+0x86d/0xd70 [ 56.538525][ T2523] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 56.544437][ T2523] ? __kthread_parkme+0x169/0x1d0 [ 56.549472][ T2523] ? __pfx_worker_thread+0x10/0x10 [ 56.554574][ T2523] kthread+0x2f0/0x390 [ 56.558635][ T2523] ? __pfx_worker_thread+0x10/0x10 [ 56.563733][ T2523] ? __pfx_kthread+0x10/0x10 [ 56.568319][ T2523] ret_from_fork+0x4b/0x80 [ 56.572727][ T2523] ? __pfx_kthread+0x10/0x10 [ 56.577305][ T2523] ret_from_fork_asm+0x1a/0x30 [ 56.582067][ T2523] [ 56.585072][ T2523] [ 56.587379][ T2523] Allocated by task 5107: [ 56.591687][ T2523] kasan_save_track+0x3f/0x80 [ 56.596353][ T2523] __kasan_kmalloc+0x98/0xb0 [ 56.600933][ T2523] __kmalloc_noprof+0x1f9/0x400 [ 56.605771][ T2523] l2tp_session_create+0x3b/0xc20 [ 56.610785][ T2523] pppol2tp_connect+0xca3/0x17a0 [ 56.615718][ T2523] __sys_connect+0x2df/0x310 [ 56.620293][ T2523] __x64_sys_connect+0x7a/0x90 [ 56.625043][ T2523] do_syscall_64+0xf3/0x230 [ 56.629532][ T2523] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 56.635412][ T2523] [ 56.637717][ T2523] Freed by task 16: [ 56.641500][ T2523] kasan_save_track+0x3f/0x80 [ 56.646164][ T2523] kasan_save_free_info+0x40/0x50 [ 56.651169][ T2523] poison_slab_object+0xe0/0x150 [ 56.656091][ T2523] __kasan_slab_free+0x37/0x60 [ 56.660839][ T2523] kfree+0x149/0x360 [ 56.664728][ T2523] __sk_destruct+0x58/0x5f0 [ 56.669221][ T2523] rcu_core+0xafd/0x1830 [ 56.673452][ T2523] handle_softirqs+0x2c4/0x970 [ 56.678199][ T2523] run_ksoftirqd+0xca/0x130 [ 56.682685][ T2523] smpboot_thread_fn+0x544/0xa30 [ 56.687619][ T2523] kthread+0x2f0/0x390 [ 56.691675][ T2523] ret_from_fork+0x4b/0x80 [ 56.696079][ T2523] ret_from_fork_asm+0x1a/0x30 [ 56.700832][ T2523] [ 56.703139][ T2523] Last potentially related work creation: [ 56.708834][ T2523] kasan_save_stack+0x3f/0x60 [ 56.713499][ T2523] __kasan_record_aux_stack+0xac/0xc0 [ 56.718853][ T2523] call_rcu+0x167/0xa70 [ 56.722994][ T2523] pppol2tp_release+0x24b/0x350 [ 56.727839][ T2523] sock_close+0xbc/0x240 [ 56.732069][ T2523] __fput+0x406/0x8b0 [ 56.736035][ T2523] task_work_run+0x24f/0x310 [ 56.740614][ T2523] do_exit+0xa27/0x27e0 [ 56.744757][ T2523] do_group_exit+0x207/0x2c0 [ 56.749337][ T2523] get_signal+0x16a1/0x1740 [ 56.753915][ T2523] arch_do_signal_or_restart+0x96/0x860 [ 56.759448][ T2523] syscall_exit_to_user_mode+0xc9/0x370 [ 56.764990][ T2523] do_syscall_64+0x100/0x230 [ 56.769568][ T2523] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 56.775452][ T2523] [ 56.777756][ T2523] The buggy address belongs to the object at ffff88802aaf5800 [ 56.777756][ T2523] which belongs to the cache kmalloc-1k of size 1024 [ 56.791790][ T2523] The buggy address is located 8 bytes inside of [ 56.791790][ T2523] freed 1024-byte region [ffff88802aaf5800, ffff88802aaf5c00) [ 56.805480][ T2523] [ 56.807786][ T2523] The buggy address belongs to the physical page: [ 56.814194][ T2523] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2aaf0 [ 56.822939][ T2523] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 56.831419][ T2523] anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) [ 56.839380][ T2523] page_type: 0xffffefff(slab) [ 56.844041][ T2523] raw: 00fff00000000040 ffff888015041dc0 0000000000000000 dead000000000001 [ 56.852607][ T2523] raw: 0000000000000000 0000000000100010 00000001ffffefff 0000000000000000 [ 56.861171][ T2523] head: 00fff00000000040 ffff888015041dc0 0000000000000000 dead000000000001 [ 56.869824][ T2523] head: 0000000000000000 0000000000100010 00000001ffffefff 0000000000000000 [ 56.878478][ T2523] head: 00fff00000000003 ffffea0000aabc01 ffffffffffffffff 0000000000000000 [ 56.887131][ T2523] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 56.895779][ T2523] page dumped because: kasan: bad access detected [ 56.902181][ T2523] page_owner tracks the page as allocated [ 56.907875][ T2523] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 11074988535, free_ts 0 [ 56.927564][ T2523] post_alloc_hook+0x1f3/0x230 [ 56.932325][ T2523] get_page_from_freelist+0x2e43/0x2f00 [ 56.937852][ T2523] __alloc_pages_noprof+0x256/0x6c0 [ 56.943034][ T2523] alloc_slab_page+0x5f/0x120 [ 56.947696][ T2523] allocate_slab+0x5a/0x2f0 [ 56.952181][ T2523] ___slab_alloc+0xcd1/0x14b0 [ 56.956841][ T2523] __slab_alloc+0x58/0xa0 [ 56.961155][ T2523] __kmalloc_noprof+0x257/0x400 [ 56.965989][ T2523] alloc_workqueue+0x1b0/0x2060 [ 56.970826][ T2523] tipc_topsrv_init_net+0x303/0x9d0 [ 56.976011][ T2523] ops_init+0x359/0x610 [ 56.980152][ T2523] register_pernet_operations+0x2cb/0x660 [ 56.985854][ T2523] register_pernet_device+0x33/0x80 [ 56.991035][ T2523] tipc_init+0x8d/0x190 [ 56.995180][ T2523] do_one_initcall+0x248/0x880 [ 56.999931][ T2523] do_initcall_level+0x157/0x210 [ 57.004863][ T2523] page_owner free stack trace missing [ 57.010209][ T2523] [ 57.012515][ T2523] Memory state around the buggy address: [ 57.018129][ T2523] ffff88802aaf5700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 57.026172][ T2523] ffff88802aaf5780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 57.034212][ T2523] >ffff88802aaf5800: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 57.042249][ T2523] ^ [ 57.046556][ T2523] ffff88802aaf5880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 57.054603][ T2523] ffff88802aaf5900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [pid 5112] rt_sigprocmask(SIG_SETMASK, [], [pid 5109] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5115] set_robust_list(0x7f662735f9a0, 24 [pid 5114] <... socket resumed>) = 4 [pid 5112] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5115] <... set_robust_list resumed>) = 0 [pid 5115] rt_sigprocmask(SIG_SETMASK, [], [pid 5114] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5112] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5115] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5114] <... futex resumed>) = 1 [pid 5112] <... futex resumed>) = 0 [pid 5109] <... futex resumed>) = 0 [pid 5115] socket(AF_PPPOX, SOCK_STREAM, 1 [pid 5114] socket(AF_INET, SOCK_DGRAM, IPPROTO_IP [pid 5112] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5109] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5115] <... socket resumed>) = 3 [pid 5114] <... socket resumed>) = 5 [pid 5109] <... futex resumed>) = 0 [pid 5109] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5115] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5115] <... futex resumed>) = 1 [pid 5114] <... futex resumed>) = 1 [pid 5112] <... futex resumed>) = 0 [pid 5109] <... futex resumed>) = 0 [pid 5115] socket(AF_PPPOX, SOCK_STREAM, 1 [pid 5114] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5112] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5115] <... socket resumed>) = 4 [pid 5115] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5112] <... futex resumed>) = 0 [pid 5109] <... futex resumed>) = 0 [pid 5115] <... futex resumed>) = 0 [pid 5114] connect(4, {sa_family=AF_PPPOX, sa_data="\x01\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\x00\x00\x00\x00"}, 50 [pid 5115] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5114] <... connect resumed>) = -1 ENODEV (No such device) [pid 5112] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5109] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5114] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5112] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5109] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5114] <... futex resumed>) = 0 [pid 5112] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000executing program executing program [pid 5115] <... futex resumed>) = 0 [pid 5114] connect(3, {sa_family=AF_PPPOX, sa_data="\x01\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x02\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x01\x00\x02\x00\x00\x00\x00\x00"}, 38 [pid 5112] <... futex resumed>) = 1 [pid 5109] <... futex resumed>) = 0 [pid 5115] socket(AF_INET, SOCK_DGRAM, IPPROTO_IP [pid 5114] <... connect resumed>) = -1 ENODEV (No such device) [pid 5112] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5109] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5115] <... socket resumed>) = 5 [pid 5114] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5114] <... futex resumed>) = 0 [pid 5109] exit_group(0 [pid 5115] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5114] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5115] <... futex resumed>) = 1 [pid 5114] <... futex resumed>) = ? [pid 5112] <... futex resumed>) = 0 [pid 5109] <... exit_group resumed>) = ? [pid 5115] connect(4, {sa_family=AF_PPPOX, sa_data="\x01\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\x00\x00\x00\x00"}, 50 [pid 5114] +++ exited with 0 +++ [pid 5112] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5109] +++ exited with 0 +++ [pid 5112] <... futex resumed>) = 0 [pid 5094] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5115] <... connect resumed>) = -1 ENODEV (No such device) [pid 5112] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5115] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] restart_syscall(<... resuming interrupted clone ...> [pid 5115] <... futex resumed>) = 1 [pid 5112] <... futex resumed>) = 0 [pid 5115] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5112] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5094] <... restart_syscall resumed>) = 0 [pid 5115] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5112] <... futex resumed>) = 0 [pid 5115] connect(3, {sa_family=AF_PPPOX, sa_data="\x01\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x02\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x01\x00\x02\x00\x00\x00\x00\x00"}, 38) = -1 ENODEV (No such device) [pid 5112] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5094] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5115] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5112] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5116 attached [pid 5115] <... futex resumed>) = 1 [pid 5112] exit_group(0 [pid 5116] set_robust_list(0x5555737fe6a0, 24 [pid 5112] <... exit_group resumed>) = ? [pid 5115] +++ exited with 0 +++ [pid 5116] <... set_robust_list resumed>) = 0 [pid 5112] +++ exited with 0 +++ [pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5116] setpgid(0, 0 [pid 5094] <... clone resumed>, child_tidptr=0x5555737fe690) = 5116 [pid 5116] <... setpgid resumed>) = 0 [pid 5100] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5100] restart_syscall(<... resuming interrupted clone ...> [pid 5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5116] write(3, "1000", 4) = 4 [pid 5116] close(3) = 0 [pid 5116] write(1, "executing program\n", 18) = 18 [pid 5116] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5100] <... restart_syscall resumed>) = 0 [pid 5116] <... futex resumed>) = 0 [pid 5116] rt_sigaction(SIGRT_1, {sa_handler=0x7f66273ca450, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f66273bbad0}, [pid 5100] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5116] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5116] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], ./strace-static-x86_64: Process 5117 attached NULL, 8) = 0 [pid 5117] set_robust_list(0x5555737fe6a0, 24 [pid 5116] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5117] <... set_robust_list resumed>) = 0 [pid 5116] <... mmap resumed>) = 0x7f662733f000 [pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5116] mprotect(0x7f6627340000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5117] <... prctl resumed>) = 0 [pid 5116] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5100] <... clone resumed>, child_tidptr=0x5555737fe690) = 5117 [pid 5117] setpgid(0, 0) = 0 [pid 5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5116] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5116] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f662735f990, parent_tid=0x7f662735f990, exit_signal=0, stack=0x7f662733f000, stack_size=0x20300, tls=0x7f662735f6c0}./strace-static-x86_64: Process 5118 attached [pid 5118] rseq(0x7f662735ffe0, 0x20, 0, 0x53053053 [pid 5117] <... openat resumed>) = 3 [pid 5116] <... clone3 resumed> => {parent_tid=[5118]}, 88) = 5118 [pid 5118] <... rseq resumed>) = 0 [pid 5116] rt_sigprocmask(SIG_SETMASK, [], [pid 5118] set_robust_list(0x7f662735f9a0, 24 [pid 5117] write(3, "1000", 4 [pid 5116] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5118] <... set_robust_list resumed>) = 0 [pid 5118] rt_sigprocmask(SIG_SETMASK, [], [pid 5117] <... write resumed>) = 4 [pid 5116] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5117] close(3 [pid 5116] <... futex resumed>) = 0 [pid 5118] socket(AF_PPPOX, SOCK_STREAM, 1 [pid 5117] <... close resumed>) = 0 [pid 5118] <... socket resumed>) = 3 [pid 5117] write(1, "executing program\n", 18 [pid 5116] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5118] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5117] <... write resumed>) = 18 [pid 5117] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5117] <... futex resumed>) = 0 [pid 5116] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5117] rt_sigaction(SIGRT_1, {sa_handler=0x7f66273ca450, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f66273bbad0}, [pid 5116] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] <... futex resumed>) = 0 [pid 5117] <... rt_sigaction resumed>NULL, 8) = 0 [pid 5116] <... futex resumed>) = 1 [pid 5118] socket(AF_PPPOX, SOCK_STREAM, 1 [pid 5117] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], [pid 5118] <... socket resumed>) = 4 [pid 5116] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5118] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5117] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5117] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5116] <... futex resumed>) = 0 [pid 5118] <... futex resumed>) = 1 [pid 5117] <... mmap resumed>) = 0x7f662733f000 [pid 5118] socket(AF_INET, SOCK_DGRAM, IPPROTO_IP [pid 5117] mprotect(0x7f6627340000, 131072, PROT_READ|PROT_WRITE [pid 5116] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] <... socket resumed>) = 5 [pid 5118] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5117] <... mprotect resumed>) = 0 [pid 5116] <... futex resumed>) = 0 [pid 5118] <... futex resumed>) = 0 [pid 5117] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5116] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5118] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5116] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5108] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 5117] <... rt_sigprocmask resumed>[], 8) = 0 [pid 5116] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5108] futex(0x7f662742e33c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5118] <... futex resumed>) = 0 [pid 5117] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f662735f990, parent_tid=0x7f662735f990, exit_signal=0, stack=0x7f662733f000, stack_size=0x20300, tls=0x7f662735f6c0} [pid 5116] <... futex resumed>) = 1 [pid 5108] <... futex resumed>) = 0 ./strace-static-x86_64: Process 5119 attached [pid 5118] connect(4, {sa_family=AF_PPPOX, sa_data="\x01\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\x00\x00\x00\x00"}, 50 [pid 5116] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 5108] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 5119] rseq(0x7f662735ffe0, 0x20, 0, 0x53053053 [pid 5118] <... connect resumed>) = -1 ENODEV (No such device) [pid 5119] <... rseq resumed>) = 0 [pid 5118] futex(0x7f662742e32c, FUTEX_WAKE_PRIVATE, 1000000 [pid 5108] <... mmap resumed>) = 0x7f662731e000 [pid 5119] set_robust_list(0x7f662735f9a0, 24 [pid 5118] <... futex resumed>) = 1 [pid 5117] <... clone3 resumed> => {parent_tid=[5119]}, 88) = 5119 [pid 5116] <... futex resumed>) = 0 [pid 5108] mprotect(0x7f662731f000, 131072, PROT_READ|PROT_WRITE [pid 5119] <... set_robust_list resumed>) = 0 [pid 5118] futex(0x7f662742e328, FUTEX_WAIT_PRIVATE, 0, NULL [pid 5117] rt_sigprocmask(SIG_SETMASK, [], [pid 5116] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5108] <... mprotect resumed>) = 0 [pid 5119] rt_sigprocmask(SIG_SETMASK, [], [pid 5118] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 5117] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5116] <... futex resumed>) = 0 [pid 5108] rt_sigprocmask(SIG_BLOCK, ~[], [pid 5119] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5118] connect(3, {sa_family=AF_PPPOX, sa_data="\x01\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x02\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x01\x00\x02\x00\x00\x00\x00\x00"}, 38 [pid 5117] futex(0x7f662742e328, FUTEX_WAKE_PRIVATE, 1000000 [pid 5116] futex(0x7f662742e32c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}