./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor397348782 <...> Warning: Permanently added '10.128.0.209' (ECDSA) to the list of known hosts. execve("./syz-executor397348782", ["./syz-executor397348782"], 0x7fffd3794d10 /* 10 vars */) = 0 brk(NULL) = 0x555556e31000 brk(0x555556e31d40) = 0x555556e31d40 arch_prctl(ARCH_SET_FS, 0x555556e31400) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x555556e316d0) = 3611 set_robust_list(0x555556e316e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7fbc2b62f4d0, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7fbc2b62ea20}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7fbc2b62f570, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fbc2b62ea20}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor397348782", 4096) = 27 brk(0x555556e52d40) = 0x555556e52d40 brk(0x555556e53000) = 0x555556e53000 mprotect(0x7fbc2b6f0000, 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 getpid() = 3611 openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC) = 3 write(3, "10000000000", 11) = 11 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 write(3, "20", 2) = 2 close(3) = 0 openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 write(3, "100", 3) = 3 close(3) = 0 openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 write(3, "7 4 1 3", 7) = 7 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 write(3, "3611", 4) = 4 close(3) = 0 socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 4 sendto(4, [{nlmsg_len=36, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x03\x00\x00\x00\x0d\x00\x02\x00\x6e\x6c\x38\x30\x32\x31\x35\x34\x00\x00\x00\x00"], 36, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 36 recvfrom(4, [{nlmsg_len=680, nlmsg_type=nlctrl, nlmsg_flags=0, nlmsg_seq=0, nlmsg_pid=3611}, "\x01\x02\x00\x00\x0d\x00\x02\x00\x6e\x6c\x38\x30\x32\x31\x35\x34\x00\x00\x00\x00\x06\x00\x01\x00\x1c\x00\x00\x00\x08\x00\x03\x00\x01\x00\x00\x00\x08\x00\x04\x00\x00\x00\x00\x00\x08\x00\x05\x00\x25\x00\x00\x00\x48\x02\x06\x00\x14\x00\x01\x00\x08\x00\x01\x00\x01\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x02\x00\x08\x00\x01\x00\x05\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x03\x00"...], 4096, 0, NULL, NULL) = 680 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=3611}, {error=0, msg={nlmsg_len=36, nlmsg_type=nlctrl, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 access("/proc/net", R_OK) = 0 access("/proc/net/unix", R_OK) = 0 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan0", ifr_ifindex=11}) = 0 close(5) = 0 sendto(4, [{nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x0b\x00\x00\x00\x08\x00\x03\x00\x0b\x00\x00\x00\x06\x00\x0a\x00\xa0\xaa\x00\x00"], 36, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 36 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=3611}, {error=0, msg={nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan0", ifr_ifindex=11}) = 0 close(5) = 0 sendto(3, [{nlmsg_len=44, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x0c\x00\x01\x00\x02\x00\xaa\xaa\xaa\xaa\xaa\xaa"], 44, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 44 recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=3611}, {error=0, msg={nlmsg_len=44, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 sendto(3, [{nlmsg_len=68, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|NLM_F_EXCL|NLM_F_CREATE, nlmsg_seq=0, nlmsg_pid=0}, {ifi_family=AF_UNSPEC, ifi_type=ARPHRD_NETROM, ifi_index=0, ifi_flags=0, ifi_change=0}, [[{nla_len=11, nla_type=IFLA_IFNAME}, "lowpan0"...], [{nla_len=16, nla_type=IFLA_LINKINFO}, [{nla_len=10, nla_type=IFLA_INFO_KIND}, "lowpan"...]], [{nla_len=8, nla_type=IFLA_LINK}, 11]]], 68, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 68 recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=3611}, {error=0, msg={nlmsg_len=68, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|NLM_F_EXCL|NLM_F_CREATE, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan1", ifr_ifindex=12}) = 0 close(5) = 0 sendto(4, [{nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x0b\x00\x00\x00\x08\x00\x03\x00\x0c\x00\x00\x00\x06\x00\x0a\x00\xa1\xaa\x00\x00"], 36, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 36 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=3611}, {error=0, msg={nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan1", ifr_ifindex=12}) = 0 close(5) = 0 sendto(3, [{nlmsg_len=44, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, {ifi_family=AF_UNSPEC, ifi_type=ARPHRD_NETROM, ifi_index=if_nametoindex("wpan1"), ifi_flags=IFF_UP, ifi_change=0x1}, [{nla_len=12, nla_type=IFLA_ADDRESS}, 02:01:aa:aa:aa:aa:aa]], 44, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 44 recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=3611}, {error=0, msg={nlmsg_len=44, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 close(3) = 0 close(4) = 0 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7fbc2b629940, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fbc2b62ea20}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7fbc2b629940, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fbc2b62ea20}, NULL, 8) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3613 ./strace-static-x86_64: Process 3613 attached [pid 3613] set_robust_list(0x555556e316e0, 24) = 0 [pid 3613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3613] setpgid(0, 0) = 0 [pid 3613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3613] write(3, "1000", 4) = 4 [pid 3613] close(3) = 0 [pid 3613] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3613] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3613] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3613] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3615], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3615 [pid 3613] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3613] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3615 attached [pid 3615] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3615] memfd_create("syzkaller", 0) = 3 [pid 3615] ftruncate(3, 0) = 0 [pid 3615] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3615] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3615] mkdir("./file0", 0777) = 0 [pid 3615] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3615] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3613] <... futex resumed>) = 0 [pid 3613] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3615] <... futex resumed>) = 1 [pid 3613] <... futex resumed>) = 0 [pid 3615] pipe2( [pid 3613] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3615] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3615] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3613] <... futex resumed>) = 0 [pid 3615] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3613] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3615] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 3613] <... futex resumed>) = 0 [pid 3615] <... write resumed>) = 64568 [pid 3613] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3615] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3613] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3613] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3613] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3615] <... futex resumed>) = 1 [pid 3613] <... futex resumed>) = 0 [pid 3615] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3613] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3613] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3613] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3613] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3613] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3613] clone(child_stack=0x7fbc2b5fd2f0, 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 3616 attached , parent_tid=[3616], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3616 [pid 3613] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3613] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3616] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3616] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3616] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3615] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3616] <... futex resumed>) = 1 [pid 3615] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3613] <... futex resumed>) = 0 [pid 3616] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3615] <... futex resumed>) = 0 [pid 3613] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3615] read(5, [pid 3613] <... futex resumed>) = 0 [pid 3615] <... read resumed>NULL, 0) = 0 [pid 3613] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3615] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3613] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3615] <... futex resumed>) = 0 [pid 3613] exit_group(0 [pid 3616] <... futex resumed>) = ? [pid 3613] <... exit_group resumed>) = ? [pid 3615] +++ exited with 0 +++ [pid 3616] +++ exited with 0 +++ [pid 3613] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3613, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3617 ./strace-static-x86_64: Process 3617 attached [pid 3617] set_robust_list(0x555556e316e0, 24) = 0 [pid 3617] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3617] setpgid(0, 0) = 0 [pid 3617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3617] write(3, "1000", 4) = 4 [pid 3617] close(3) = 0 [pid 3617] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3617] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3617] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3617] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3618], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3618 [pid 3617] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3617] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3618 attached [pid 3618] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3618] memfd_create("syzkaller", 0) = 3 [pid 3618] ftruncate(3, 0) = 0 [pid 3618] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3618] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3618] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3618] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3618] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3617] <... futex resumed>) = 0 [pid 3617] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3617] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3618] <... futex resumed>) = 1 [pid 3618] pipe2([5, 6], 0) = 0 [pid 3618] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3617] <... futex resumed>) = 0 [pid 3617] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3617] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3618] <... futex resumed>) = 1 [pid 3618] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3618] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3617] <... futex resumed>) = 0 [pid 3617] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3617] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3618] <... futex resumed>) = 1 [pid 3618] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3617] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3617] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3617] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3617] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3617] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3617] clone(child_stack=0x7fbc2b5fd2f0, 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 3619 attached , parent_tid=[3619], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3619 [pid 3617] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3617] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3619] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3619] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3618] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3619] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3618] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3619] <... futex resumed>) = 1 [pid 3618] <... futex resumed>) = 0 [pid 3617] <... futex resumed>) = 0 [pid 3619] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3618] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3617] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3618] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3617] <... futex resumed>) = 0 [pid 3618] read(5, [pid 3617] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3618] <... read resumed>NULL, 0) = 0 [pid 3618] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3617] <... futex resumed>) = 0 [pid 3618] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3617] exit_group(0 [pid 3619] <... futex resumed>) = ? [pid 3618] <... futex resumed>) = ? [pid 3617] <... exit_group resumed>) = ? [pid 3619] +++ exited with 0 +++ [pid 3618] +++ exited with 0 +++ [pid 3617] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3617, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3620 ./strace-static-x86_64: Process 3620 attached [pid 3620] set_robust_list(0x555556e316e0, 24) = 0 [pid 3620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3620] setpgid(0, 0) = 0 [pid 3620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3620] write(3, "1000", 4) = 4 [pid 3620] close(3) = 0 [pid 3620] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3620] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3620] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3620] clone(child_stack=0x7fbc2b61e2f0, 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 3621 attached , parent_tid=[3621], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3621 [pid 3621] set_robust_list(0x7fbc2b61e9e0, 24 [pid 3620] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3620] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3621] <... set_robust_list resumed>) = 0 [pid 3621] memfd_create("syzkaller", 0) = 3 [pid 3621] ftruncate(3, 0) = 0 [pid 3621] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3621] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3621] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3621] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3621] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3620] <... futex resumed>) = 0 [pid 3621] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3620] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3620] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3621] <... futex resumed>) = 0 [pid 3621] pipe2([5, 6], 0) = 0 [pid 3621] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3621] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3620] <... futex resumed>) = 0 [pid 3620] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3620] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3621] <... futex resumed>) = 0 [pid 3621] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3621] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3620] <... futex resumed>) = 0 [pid 3620] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3621] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3620] <... futex resumed>) = 0 [pid 3620] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3620] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3620] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3620] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3620] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3622], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3622 [pid 3620] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3620] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3622 attached [pid 3622] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3622] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3621] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3621] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3621] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3622] <... write resumed>) = 8 [pid 3622] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3620] <... futex resumed>) = 0 [pid 3620] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3621] <... futex resumed>) = 0 [pid 3620] <... futex resumed>) = 1 [pid 3621] read(5, [pid 3620] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3621] <... read resumed>NULL, 0) = 0 [pid 3621] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3620] <... futex resumed>) = 0 [pid 3621] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3620] exit_group(0 [pid 3621] <... futex resumed>) = ? [pid 3620] <... exit_group resumed>) = ? [pid 3621] +++ exited with 0 +++ [pid 3622] <... futex resumed>) = ? [pid 3622] +++ exited with 0 +++ [pid 3620] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3620, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3623 ./strace-static-x86_64: Process 3623 attached [pid 3623] set_robust_list(0x555556e316e0, 24) = 0 [pid 3623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3623] setpgid(0, 0) = 0 [pid 3623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3623] write(3, "1000", 4) = 4 [pid 3623] close(3) = 0 [pid 3623] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3623] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3623] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3623] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3624], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3624 [pid 3623] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3623] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3624 attached [pid 3624] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3624] memfd_create("syzkaller", 0) = 3 [pid 3624] ftruncate(3, 0) = 0 [pid 3624] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3624] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3624] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3624] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3624] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3623] <... futex resumed>) = 0 [pid 3623] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3623] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3624] <... futex resumed>) = 1 [pid 3624] pipe2([5, 6], 0) = 0 [pid 3624] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3623] <... futex resumed>) = 0 [pid 3623] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3623] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3624] <... futex resumed>) = 1 [pid 3624] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3624] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3623] <... futex resumed>) = 0 [pid 3623] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3623] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3624] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3623] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3623] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3623] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3623] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3623] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3623] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3623] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3625], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3625 [pid 3623] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3623] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3625 attached [pid 3625] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3625] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3624] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3624] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3624] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3625] <... write resumed>) = 8 [pid 3625] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3623] <... futex resumed>) = 0 [pid 3623] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3624] <... futex resumed>) = 0 [pid 3623] <... futex resumed>) = 1 [pid 3624] read(5, [pid 3623] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3624] <... read resumed>NULL, 0) = 0 [pid 3624] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3623] <... futex resumed>) = 0 [pid 3624] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3623] exit_group(0 [pid 3624] <... futex resumed>) = ? [pid 3623] <... exit_group resumed>) = ? [pid 3624] +++ exited with 0 +++ [pid 3625] <... futex resumed>) = ? [pid 3625] +++ exited with 0 +++ [pid 3623] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3623, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3626 ./strace-static-x86_64: Process 3626 attached [pid 3626] set_robust_list(0x555556e316e0, 24) = 0 [pid 3626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3626] setpgid(0, 0) = 0 [pid 3626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3626] write(3, "1000", 4) = 4 [pid 3626] close(3) = 0 [pid 3626] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3626] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3626] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3626] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3627], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3627 [pid 3626] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 3627 attached ) = 0 [pid 3627] set_robust_list(0x7fbc2b61e9e0, 24 [pid 3626] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3627] <... set_robust_list resumed>) = 0 [pid 3627] memfd_create("syzkaller", 0) = 3 [pid 3627] ftruncate(3, 0) = 0 [pid 3627] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3627] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3627] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3627] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3627] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3626] <... futex resumed>) = 0 [pid 3626] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3626] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3627] pipe2([5, 6], 0) = 0 [pid 3627] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3626] <... futex resumed>) = 0 [pid 3626] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3626] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3627] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3627] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3626] <... futex resumed>) = 0 [pid 3626] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3626] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3627] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3626] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3626] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3626] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3626] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3626] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3626] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3628], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3628 [pid 3626] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3626] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3628 attached [pid 3628] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3628] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3627] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3628] <... write resumed>) = 8 [pid 3627] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3627] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3628] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3626] <... futex resumed>) = 0 [pid 3626] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3627] <... futex resumed>) = 0 [pid 3626] <... futex resumed>) = 1 [pid 3627] read(5, [pid 3626] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3627] <... read resumed>NULL, 0) = 0 [pid 3627] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3626] <... futex resumed>) = 0 [pid 3627] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3626] exit_group(0 [pid 3627] <... futex resumed>) = ? [pid 3626] <... exit_group resumed>) = ? [pid 3627] +++ exited with 0 +++ [pid 3628] <... futex resumed>) = ? [pid 3628] +++ exited with 0 +++ [pid 3626] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3626, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3629 ./strace-static-x86_64: Process 3629 attached [pid 3629] set_robust_list(0x555556e316e0, 24) = 0 [pid 3629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3629] setpgid(0, 0) = 0 [pid 3629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3629] write(3, "1000", 4) = 4 [pid 3629] close(3) = 0 [pid 3629] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3629] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3629] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3629] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3630], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3630 [pid 3629] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3629] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3630 attached [pid 3630] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3630] memfd_create("syzkaller", 0) = 3 [pid 3630] ftruncate(3, 0) = 0 [pid 3630] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3630] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3630] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3630] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3630] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3629] <... futex resumed>) = 0 [pid 3629] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3630] pipe2( [pid 3629] <... futex resumed>) = 0 [pid 3629] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3630] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3630] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3629] <... futex resumed>) = 0 [pid 3630] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3629] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3630] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3629] <... futex resumed>) = 0 [pid 3629] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3630] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3630] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3630] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3629] <... futex resumed>) = 0 [pid 3629] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3630] <... futex resumed>) = 0 [pid 3629] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3630] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3629] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3629] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3629] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3629] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3629] clone(child_stack=0x7fbc2b5fd2f0, 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 3631 attached [pid 3631] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3631] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3629] <... clone resumed>, parent_tid=[3631], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3631 [pid 3629] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3629] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3631] <... futex resumed>) = 0 [pid 3631] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3630] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3630] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3630] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3631] <... write resumed>) = 8 [pid 3631] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3629] <... futex resumed>) = 0 [pid 3629] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3630] <... futex resumed>) = 0 [pid 3629] <... futex resumed>) = 1 [pid 3630] read(5, [pid 3629] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3630] <... read resumed>NULL, 0) = 0 [pid 3630] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3629] <... futex resumed>) = 0 [pid 3630] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3629] exit_group(0 [pid 3630] <... futex resumed>) = ? [pid 3629] <... exit_group resumed>) = ? [pid 3630] +++ exited with 0 +++ [pid 3631] <... futex resumed>) = ? [pid 3631] +++ exited with 0 +++ [pid 3629] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3629, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3632 ./strace-static-x86_64: Process 3632 attached [pid 3632] set_robust_list(0x555556e316e0, 24) = 0 [pid 3632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3632] setpgid(0, 0) = 0 [pid 3632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3632] write(3, "1000", 4) = 4 [pid 3632] close(3) = 0 [pid 3632] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3632] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3632] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3633], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3633 [pid 3632] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3633 attached [pid 3633] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3633] memfd_create("syzkaller", 0) = 3 [pid 3633] ftruncate(3, 0) = 0 [pid 3633] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3633] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3633] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3633] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3633] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3632] <... futex resumed>) = 0 [pid 3632] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3633] <... futex resumed>) = 1 [pid 3633] pipe2([5, 6], 0) = 0 [pid 3633] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3632] <... futex resumed>) = 0 [pid 3632] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3633] <... futex resumed>) = 1 [pid 3633] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3633] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3632] <... futex resumed>) = 0 [pid 3632] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3633] <... futex resumed>) = 1 [pid 3633] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3632] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3632] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3632] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3632] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3632] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3632] clone(child_stack=0x7fbc2b5fd2f0, 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 3634 attached , parent_tid=[3634], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3634 [pid 3634] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3632] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3632] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3634] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3634] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3633] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3633] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3632] <... futex resumed>) = 0 [pid 3633] <... futex resumed>) = 0 [pid 3634] <... futex resumed>) = 1 [pid 3633] read(5, [pid 3632] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3633] <... read resumed>NULL, 0) = 0 [pid 3632] <... futex resumed>) = 0 [pid 3633] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3632] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3633] <... futex resumed>) = 0 [pid 3633] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3632] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3634] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3632] exit_group(0 [pid 3633] <... futex resumed>) = ? [pid 3632] <... exit_group resumed>) = ? [pid 3634] <... futex resumed>) = ? [pid 3633] +++ exited with 0 +++ [pid 3634] +++ exited with 0 +++ [pid 3632] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3632, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3635 ./strace-static-x86_64: Process 3635 attached [pid 3635] set_robust_list(0x555556e316e0, 24) = 0 [pid 3635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3635] setpgid(0, 0) = 0 [pid 3635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3635] write(3, "1000", 4) = 4 [pid 3635] close(3) = 0 [pid 3635] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3635] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3635] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3635] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3636], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3636 [pid 3635] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3635] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3636 attached [pid 3636] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3636] memfd_create("syzkaller", 0) = 3 [pid 3636] ftruncate(3, 0) = 0 [pid 3636] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3636] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3636] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3636] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3636] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3635] <... futex resumed>) = 0 [pid 3635] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3635] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3636] <... futex resumed>) = 1 [pid 3636] pipe2([5, 6], 0) = 0 [pid 3636] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3635] <... futex resumed>) = 0 [pid 3635] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3636] <... futex resumed>) = 1 [pid 3635] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3636] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3636] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3635] <... futex resumed>) = 0 [pid 3635] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3635] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3636] <... futex resumed>) = 1 [pid 3636] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3635] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3635] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3635] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3635] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3635] clone(child_stack=0x7fbc2b5fd2f0, 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 3637 attached , parent_tid=[3637], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3637 [pid 3637] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3635] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3637] <... set_robust_list resumed>) = 0 [pid 3635] <... futex resumed>) = 0 [pid 3637] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3635] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3637] <... write resumed>) = 8 [pid 3636] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3637] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3636] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3637] <... futex resumed>) = 1 [pid 3636] <... futex resumed>) = 0 [pid 3635] <... futex resumed>) = 0 [pid 3637] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3636] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3635] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3636] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3636] read(5, [pid 3635] <... futex resumed>) = 0 [pid 3636] <... read resumed>NULL, 0) = 0 [pid 3636] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3635] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3636] <... futex resumed>) = 0 [pid 3636] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3635] exit_group(0 [pid 3637] <... futex resumed>) = ? [pid 3635] <... exit_group resumed>) = ? [pid 3636] <... futex resumed>) = ? [pid 3637] +++ exited with 0 +++ [pid 3636] +++ exited with 0 +++ [pid 3635] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3635, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3638 ./strace-static-x86_64: Process 3638 attached [pid 3638] set_robust_list(0x555556e316e0, 24) = 0 [pid 3638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3638] setpgid(0, 0) = 0 [pid 3638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3638] write(3, "1000", 4) = 4 [pid 3638] close(3) = 0 [pid 3638] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3638] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3638] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3638] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3639], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3639 [pid 3638] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3638] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3639 attached [pid 3639] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3639] memfd_create("syzkaller", 0) = 3 [pid 3639] ftruncate(3, 0) = 0 [pid 3639] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3639] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3639] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3639] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3639] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3638] <... futex resumed>) = 0 [pid 3639] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3638] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3638] <... futex resumed>) = 0 [pid 3638] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3639] pipe2([5, 6], 0) = 0 [pid 3639] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3639] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3638] <... futex resumed>) = 0 [pid 3638] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3638] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3639] <... futex resumed>) = 0 [pid 3639] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3639] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3638] <... futex resumed>) = 0 [pid 3638] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3638] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3639] <... futex resumed>) = 1 [pid 3639] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3638] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3638] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3638] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3638] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3638] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3638] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3638] clone(child_stack=0x7fbc2b5fd2f0, 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 3640 attached , parent_tid=[3640], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3640 [pid 3640] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3638] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3640] <... set_robust_list resumed>) = 0 [pid 3638] <... futex resumed>) = 0 [pid 3640] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3638] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3640] <... write resumed>) = 8 [pid 3639] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3640] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3639] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3640] <... futex resumed>) = 1 [pid 3639] <... futex resumed>) = 0 [pid 3638] <... futex resumed>) = 0 [pid 3640] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3639] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3638] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3638] <... futex resumed>) = 0 [pid 3639] read(5, [pid 3638] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3639] <... read resumed>NULL, 0) = 0 [pid 3639] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3638] <... futex resumed>) = 0 [pid 3639] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3638] exit_group(0 [pid 3640] <... futex resumed>) = ? [pid 3639] <... futex resumed>) = ? [pid 3638] <... exit_group resumed>) = ? [pid 3640] +++ exited with 0 +++ [pid 3639] +++ exited with 0 +++ [pid 3638] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3638, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3641 ./strace-static-x86_64: Process 3641 attached [pid 3641] set_robust_list(0x555556e316e0, 24) = 0 [pid 3641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3641] setpgid(0, 0) = 0 [pid 3641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3641] write(3, "1000", 4) = 4 [pid 3641] close(3) = 0 [pid 3641] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3641] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3641] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3641] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3642], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3642 [pid 3641] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3641] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3642 attached [pid 3642] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3642] memfd_create("syzkaller", 0) = 3 [pid 3642] ftruncate(3, 0) = 0 [pid 3642] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3642] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3642] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3642] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3642] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3641] <... futex resumed>) = 0 [pid 3642] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3641] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3642] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3641] <... futex resumed>) = 0 [pid 3641] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3642] pipe2([5, 6], 0) = 0 [pid 3642] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3641] <... futex resumed>) = 0 [pid 3642] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 3641] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3642] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 3641] <... futex resumed>) = 0 [pid 3641] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3642] <... write resumed>) = 64568 [pid 3642] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3641] <... futex resumed>) = 0 [pid 3642] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3641] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3642] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3641] <... futex resumed>) = 0 [pid 3642] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3641] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3641] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3641] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3641] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3641] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3643], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3643 ./strace-static-x86_64: Process 3643 attached [pid 3641] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3641] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3643] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3643] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3643] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3642] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3642] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3643] <... futex resumed>) = 1 [pid 3642] <... futex resumed>) = 0 [pid 3641] <... futex resumed>) = 0 [pid 3643] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3642] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3641] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3642] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3641] <... futex resumed>) = 0 [pid 3642] read(5, [pid 3641] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3642] <... read resumed>NULL, 0) = 0 [pid 3642] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3641] <... futex resumed>) = 0 [pid 3642] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3641] exit_group(0 [pid 3643] <... futex resumed>) = ? [pid 3642] <... futex resumed>) = ? [pid 3641] <... exit_group resumed>) = ? [pid 3642] +++ exited with 0 +++ [pid 3643] +++ exited with 0 +++ [pid 3641] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3641, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3644 ./strace-static-x86_64: Process 3644 attached [pid 3644] set_robust_list(0x555556e316e0, 24) = 0 [pid 3644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3644] setpgid(0, 0) = 0 [pid 3644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3644] write(3, "1000", 4) = 4 [pid 3644] close(3) = 0 [pid 3644] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3644] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3644] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3644] clone(child_stack=0x7fbc2b61e2f0, 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 3645 attached , parent_tid=[3645], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3645 [pid 3644] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3644] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3645] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3645] memfd_create("syzkaller", 0) = 3 [pid 3645] ftruncate(3, 0) = 0 [pid 3645] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3645] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3645] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3645] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3645] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3644] <... futex resumed>) = 0 [pid 3644] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3644] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3645] <... futex resumed>) = 1 [pid 3645] pipe2([5, 6], 0) = 0 [pid 3645] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3644] <... futex resumed>) = 0 [pid 3644] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3644] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3645] <... futex resumed>) = 1 [pid 3645] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3645] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3644] <... futex resumed>) = 0 [pid 3644] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3644] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3645] <... futex resumed>) = 1 [pid 3645] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3644] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3644] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3644] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3644] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3644] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3644] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3644] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3646], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3646 [pid 3644] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3644] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3646 attached [pid 3646] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3646] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3645] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3645] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3645] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3646] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3644] <... futex resumed>) = 0 [pid 3646] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3644] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3645] <... futex resumed>) = 0 [pid 3644] <... futex resumed>) = 1 [pid 3645] read(5, [pid 3644] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3645] <... read resumed>NULL, 0) = 0 [pid 3645] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3644] <... futex resumed>) = 0 [pid 3645] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3644] exit_group(0 [pid 3646] <... futex resumed>) = ? [pid 3645] <... futex resumed>) = ? [pid 3644] <... exit_group resumed>) = ? [pid 3646] +++ exited with 0 +++ [pid 3645] +++ exited with 0 +++ [pid 3644] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3644, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3647 ./strace-static-x86_64: Process 3647 attached [pid 3647] set_robust_list(0x555556e316e0, 24) = 0 [pid 3647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3647] setpgid(0, 0) = 0 [pid 3647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3647] write(3, "1000", 4) = 4 [pid 3647] close(3) = 0 [pid 3647] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3647] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3647] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3647] clone(child_stack=0x7fbc2b61e2f0, 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 3648 attached , parent_tid=[3648], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3648 [pid 3647] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3647] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3648] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3648] memfd_create("syzkaller", 0) = 3 [pid 3648] ftruncate(3, 0) = 0 [pid 3648] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3648] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3648] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3648] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3648] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3647] <... futex resumed>) = 0 [pid 3647] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3647] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3648] <... futex resumed>) = 1 [pid 3648] pipe2([5, 6], 0) = 0 [pid 3648] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3647] <... futex resumed>) = 0 [pid 3647] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3647] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3648] <... futex resumed>) = 1 [pid 3648] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3648] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3647] <... futex resumed>) = 0 [pid 3647] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3647] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3648] <... futex resumed>) = 1 [pid 3648] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3647] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3647] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3647] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3647] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3647] clone(child_stack=0x7fbc2b5fd2f0, 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 3649 attached , parent_tid=[3649], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3649 [pid 3647] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3649] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3647] <... futex resumed>) = 0 [pid 3649] <... set_robust_list resumed>) = 0 [pid 3647] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3649] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3648] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3649] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3648] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3649] <... futex resumed>) = 1 [pid 3648] <... futex resumed>) = 0 [pid 3647] <... futex resumed>) = 0 [pid 3649] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3648] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3647] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3648] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3648] read(5, [pid 3647] <... futex resumed>) = 0 [pid 3648] <... read resumed>NULL, 0) = 0 [pid 3647] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3648] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3647] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3648] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3647] exit_group(0 [pid 3649] <... futex resumed>) = ? [pid 3648] <... futex resumed>) = ? [pid 3647] <... exit_group resumed>) = ? [pid 3648] +++ exited with 0 +++ [pid 3649] +++ exited with 0 +++ [pid 3647] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3647, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3650 attached , child_tidptr=0x555556e316d0) = 3650 [pid 3650] set_robust_list(0x555556e316e0, 24) = 0 [pid 3650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3650] setpgid(0, 0) = 0 [pid 3650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3650] write(3, "1000", 4) = 4 [pid 3650] close(3) = 0 [pid 3650] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3650] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3650] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3651], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3651 [pid 3650] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3650] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3651 attached [pid 3651] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3651] memfd_create("syzkaller", 0) = 3 [pid 3651] ftruncate(3, 0) = 0 [pid 3651] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3651] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3651] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3651] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3651] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3650] <... futex resumed>) = 0 [pid 3650] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3650] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3651] <... futex resumed>) = 1 [pid 3651] pipe2([5, 6], 0) = 0 [pid 3651] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3650] <... futex resumed>) = 0 [pid 3650] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3650] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3651] <... futex resumed>) = 1 [pid 3651] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3651] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3650] <... futex resumed>) = 0 [pid 3650] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3650] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3651] <... futex resumed>) = 1 [pid 3651] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3650] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3650] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3650] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3650] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3652], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3652 [pid 3650] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3650] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3652 attached [pid 3652] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3652] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3652] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3650] <... futex resumed>) = 0 [pid 3650] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3651] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3650] <... futex resumed>) = 0 [pid 3651] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3650] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3651] <... futex resumed>) = 0 [pid 3652] <... futex resumed>) = 1 [pid 3651] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3652] read(5, NULL, 0) = 0 [pid 3652] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3650] <... futex resumed>) = 0 [pid 3650] exit_group(0) = ? [pid 3651] <... futex resumed>) = ? [pid 3652] <... futex resumed>) = ? [pid 3651] +++ exited with 0 +++ [pid 3652] +++ exited with 0 +++ [pid 3650] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3650, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3653 ./strace-static-x86_64: Process 3653 attached [pid 3653] set_robust_list(0x555556e316e0, 24) = 0 [pid 3653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3653] setpgid(0, 0) = 0 [pid 3653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3653] write(3, "1000", 4) = 4 [pid 3653] close(3) = 0 [pid 3653] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3653] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3653] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3653] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3654], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3654 [pid 3653] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3653] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3654 attached [pid 3654] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3654] memfd_create("syzkaller", 0) = 3 [pid 3654] ftruncate(3, 0) = 0 [pid 3654] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3654] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3654] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3654] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3654] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3653] <... futex resumed>) = 0 [pid 3653] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3653] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3654] <... futex resumed>) = 1 [pid 3654] pipe2([5, 6], 0) = 0 [pid 3654] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3653] <... futex resumed>) = 0 [pid 3653] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3653] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3654] <... futex resumed>) = 1 [pid 3654] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3654] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3653] <... futex resumed>) = 0 [pid 3653] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3653] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3654] <... futex resumed>) = 1 [pid 3654] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3653] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3653] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3653] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3653] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3653] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3653] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3653] clone(child_stack=0x7fbc2b5fd2f0, 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 3655 attached , parent_tid=[3655], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3655 [pid 3655] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3653] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3655] <... set_robust_list resumed>) = 0 [pid 3653] <... futex resumed>) = 0 [pid 3655] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3653] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3655] <... write resumed>) = 8 [pid 3654] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3655] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3654] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3655] <... futex resumed>) = 1 [pid 3654] <... futex resumed>) = 0 [pid 3653] <... futex resumed>) = 0 [pid 3655] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3654] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3653] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3654] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3653] <... futex resumed>) = 0 [pid 3654] read(5, [pid 3653] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3654] <... read resumed>NULL, 0) = 0 [pid 3654] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3653] <... futex resumed>) = 0 [pid 3654] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3653] exit_group(0 [pid 3655] <... futex resumed>) = ? [pid 3654] <... futex resumed>) = ? [pid 3653] <... exit_group resumed>) = ? [pid 3655] +++ exited with 0 +++ [pid 3654] +++ exited with 0 +++ [pid 3653] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3653, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3656 ./strace-static-x86_64: Process 3656 attached [pid 3656] set_robust_list(0x555556e316e0, 24) = 0 [pid 3656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3656] setpgid(0, 0) = 0 [pid 3656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3656] write(3, "1000", 4) = 4 [pid 3656] close(3) = 0 [pid 3656] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3656] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3656] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3656] clone(child_stack=0x7fbc2b61e2f0, 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 3657 attached , parent_tid=[3657], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3657 [pid 3656] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3656] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3657] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3657] memfd_create("syzkaller", 0) = 3 [pid 3657] ftruncate(3, 0) = 0 [pid 3657] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3657] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3657] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3657] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3657] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3657] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3656] <... futex resumed>) = 0 [pid 3656] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3656] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3657] <... futex resumed>) = 0 [pid 3657] pipe2([5, 6], 0) = 0 [pid 3657] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3656] <... futex resumed>) = 0 [pid 3656] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3656] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3657] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3657] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3656] <... futex resumed>) = 0 [pid 3656] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3656] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3657] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3656] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3656] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3656] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3656] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3656] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3656] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3656] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3658], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3658 ./strace-static-x86_64: Process 3658 attached [pid 3656] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3656] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3658] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3658] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3657] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3658] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3657] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3658] <... futex resumed>) = 1 [pid 3657] <... futex resumed>) = 0 [pid 3656] <... futex resumed>) = 0 [pid 3658] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3657] read(5, [pid 3656] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3657] <... read resumed>NULL, 0) = 0 [pid 3656] <... futex resumed>) = 0 [pid 3657] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3656] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3657] <... futex resumed>) = 0 [pid 3656] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3657] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3656] exit_group(0 [pid 3658] <... futex resumed>) = ? [pid 3657] <... futex resumed>) = ? [pid 3656] <... exit_group resumed>) = ? [pid 3657] +++ exited with 0 +++ [pid 3658] +++ exited with 0 +++ [pid 3656] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3656, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3659 ./strace-static-x86_64: Process 3659 attached [pid 3659] set_robust_list(0x555556e316e0, 24) = 0 [pid 3659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3659] setpgid(0, 0) = 0 [pid 3659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3659] write(3, "1000", 4) = 4 [pid 3659] close(3) = 0 [pid 3659] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3659] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3659] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3659] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3660], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3660 [pid 3659] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3659] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3660 attached [pid 3660] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3660] memfd_create("syzkaller", 0) = 3 [pid 3660] ftruncate(3, 0) = 0 [pid 3660] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3660] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3660] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3660] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3660] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3659] <... futex resumed>) = 0 [pid 3659] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3659] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3660] <... futex resumed>) = 1 [pid 3660] pipe2([5, 6], 0) = 0 [pid 3660] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3659] <... futex resumed>) = 0 [pid 3659] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3659] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3660] <... futex resumed>) = 1 [pid 3660] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3660] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3659] <... futex resumed>) = 0 [pid 3659] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3659] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3660] <... futex resumed>) = 1 [pid 3660] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3659] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3659] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3659] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3659] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3659] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3659] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3661], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3661 [pid 3659] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3659] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3661 attached [pid 3661] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3661] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3660] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3661] <... write resumed>) = 8 [pid 3660] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3660] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3661] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3659] <... futex resumed>) = 0 [pid 3659] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3660] <... futex resumed>) = 0 [pid 3659] <... futex resumed>) = 1 [pid 3660] read(5, [pid 3659] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3660] <... read resumed>NULL, 0) = 0 [pid 3660] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3659] <... futex resumed>) = 0 [pid 3660] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3659] exit_group(0 [pid 3660] <... futex resumed>) = ? [pid 3659] <... exit_group resumed>) = ? [pid 3660] +++ exited with 0 +++ [pid 3661] <... futex resumed>) = ? [pid 3661] +++ exited with 0 +++ [pid 3659] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3659, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3662 ./strace-static-x86_64: Process 3662 attached [pid 3662] set_robust_list(0x555556e316e0, 24) = 0 [pid 3662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3662] setpgid(0, 0) = 0 [pid 3662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3662] write(3, "1000", 4) = 4 [pid 3662] close(3) = 0 [pid 3662] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3662] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3662] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3662] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3663], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3663 [pid 3662] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3662] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3663 attached [pid 3663] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3663] memfd_create("syzkaller", 0) = 3 [pid 3663] ftruncate(3, 0) = 0 [pid 3663] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3663] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3663] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3663] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3663] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3662] <... futex resumed>) = 0 [pid 3663] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3662] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3662] <... futex resumed>) = 0 [pid 3662] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3663] pipe2([5, 6], 0) = 0 [pid 3663] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3662] <... futex resumed>) = 0 [pid 3662] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3662] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3663] <... futex resumed>) = 1 [pid 3663] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3663] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3662] <... futex resumed>) = 0 [pid 3662] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3662] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3663] <... futex resumed>) = 1 [pid 3663] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3662] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3662] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3662] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3662] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3662] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3662] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3662] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3664], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3664 [pid 3662] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3662] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3664 attached [pid 3664] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3664] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3663] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3663] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3663] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3664] <... write resumed>) = 8 [pid 3664] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3662] <... futex resumed>) = 0 [pid 3662] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3663] <... futex resumed>) = 0 [pid 3662] <... futex resumed>) = 1 [pid 3663] read(5, [pid 3662] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3663] <... read resumed>NULL, 0) = 0 [pid 3663] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3662] <... futex resumed>) = 0 [pid 3663] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3662] exit_group(0 [pid 3663] <... futex resumed>) = ? [pid 3662] <... exit_group resumed>) = ? [pid 3663] +++ exited with 0 +++ [pid 3664] <... futex resumed>) = ? [pid 3664] +++ exited with 0 +++ [pid 3662] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3662, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3665 ./strace-static-x86_64: Process 3665 attached [pid 3665] set_robust_list(0x555556e316e0, 24) = 0 [pid 3665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3665] setpgid(0, 0) = 0 [pid 3665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3665] write(3, "1000", 4) = 4 [pid 3665] close(3) = 0 [pid 3665] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3665] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3665] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3665] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3666], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3666 [pid 3665] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3665] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3666 attached [pid 3666] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3666] memfd_create("syzkaller", 0) = 3 [pid 3666] ftruncate(3, 0) = 0 [pid 3666] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3666] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3666] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3666] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3666] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3665] <... futex resumed>) = 0 [pid 3665] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3665] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3666] <... futex resumed>) = 1 [pid 3666] pipe2([5, 6], 0) = 0 [pid 3666] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3665] <... futex resumed>) = 0 [pid 3666] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3665] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3666] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3665] <... futex resumed>) = 0 [pid 3666] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 3665] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3666] <... write resumed>) = 64568 [pid 3666] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3665] <... futex resumed>) = 0 [pid 3665] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3665] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3666] <... futex resumed>) = 1 [pid 3666] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3665] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3665] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3665] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3665] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3665] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3665] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3667], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3667 [pid 3665] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3665] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3667 attached [pid 3667] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3667] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3666] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3666] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3666] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3667] <... write resumed>) = 8 [pid 3667] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3665] <... futex resumed>) = 0 [pid 3665] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3666] <... futex resumed>) = 0 [pid 3665] <... futex resumed>) = 1 [pid 3666] read(5, [pid 3665] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3666] <... read resumed>NULL, 0) = 0 [pid 3666] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3665] <... futex resumed>) = 0 [pid 3666] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3665] exit_group(0 [pid 3666] <... futex resumed>) = ? [pid 3665] <... exit_group resumed>) = ? [pid 3666] +++ exited with 0 +++ [pid 3667] <... futex resumed>) = ? [pid 3667] +++ exited with 0 +++ [pid 3665] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3665, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3668 ./strace-static-x86_64: Process 3668 attached [pid 3668] set_robust_list(0x555556e316e0, 24) = 0 [pid 3668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3668] setpgid(0, 0) = 0 [pid 3668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3668] write(3, "1000", 4) = 4 [pid 3668] close(3) = 0 [pid 3668] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3668] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3668] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3668] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3669], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3669 [pid 3668] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3668] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3669 attached [pid 3669] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3669] memfd_create("syzkaller", 0) = 3 [pid 3669] ftruncate(3, 0) = 0 [pid 3669] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3669] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3669] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3669] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3669] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3668] <... futex resumed>) = 0 [pid 3668] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3668] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3669] <... futex resumed>) = 1 [pid 3669] pipe2([5, 6], 0) = 0 [pid 3669] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3668] <... futex resumed>) = 0 [pid 3668] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3668] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3669] <... futex resumed>) = 1 [pid 3669] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3669] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3668] <... futex resumed>) = 0 [pid 3668] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3668] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3669] <... futex resumed>) = 1 [pid 3669] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3668] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3668] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3668] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3668] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3668] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3668] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3668] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3670], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3670 [pid 3668] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3668] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3670 attached [pid 3670] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3670] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3669] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3669] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3669] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3670] <... write resumed>) = 8 [pid 3670] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3668] <... futex resumed>) = 0 [pid 3668] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3669] <... futex resumed>) = 0 [pid 3668] <... futex resumed>) = 1 [pid 3669] read(5, [pid 3668] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3669] <... read resumed>NULL, 0) = 0 [pid 3669] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3668] <... futex resumed>) = 0 [pid 3669] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3668] exit_group(0 [pid 3669] <... futex resumed>) = ? [pid 3668] <... exit_group resumed>) = ? [pid 3669] +++ exited with 0 +++ [pid 3670] <... futex resumed>) = ? [pid 3670] +++ exited with 0 +++ [pid 3668] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3668, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3671 ./strace-static-x86_64: Process 3671 attached [pid 3671] set_robust_list(0x555556e316e0, 24) = 0 [pid 3671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3671] setpgid(0, 0) = 0 [pid 3671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3671] write(3, "1000", 4) = 4 [pid 3671] close(3) = 0 [pid 3671] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3671] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3671] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3671] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3672], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3672 [pid 3671] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3671] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3672 attached [pid 3672] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3672] memfd_create("syzkaller", 0) = 3 [pid 3672] ftruncate(3, 0) = 0 [pid 3672] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3672] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3672] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3672] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3672] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3671] <... futex resumed>) = 0 [pid 3671] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3671] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3672] <... futex resumed>) = 1 [pid 3672] pipe2([5, 6], 0) = 0 [pid 3672] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3671] <... futex resumed>) = 0 [pid 3671] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3671] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3672] <... futex resumed>) = 1 [pid 3672] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3672] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3671] <... futex resumed>) = 0 [pid 3672] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3671] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3671] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3672] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3672] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3671] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3671] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3671] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3671] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3671] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3671] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3671] clone(child_stack=0x7fbc2b5fd2f0, 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 3673 attached , parent_tid=[3673], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3673 [pid 3671] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3673] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3671] <... futex resumed>) = 0 [pid 3673] <... set_robust_list resumed>) = 0 [pid 3671] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3673] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3673] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3672] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3671] <... futex resumed>) = 0 [pid 3672] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3671] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3672] <... futex resumed>) = 0 [pid 3673] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3672] read(5, [pid 3671] <... futex resumed>) = 0 [pid 3672] <... read resumed>NULL, 0) = 0 [pid 3671] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3672] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3671] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3672] <... futex resumed>) = 0 [pid 3672] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3671] exit_group(0 [pid 3672] <... futex resumed>) = ? [pid 3671] <... exit_group resumed>) = ? [pid 3673] <... futex resumed>) = ? [pid 3672] +++ exited with 0 +++ [pid 3673] +++ exited with 0 +++ [pid 3671] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3671, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3674 ./strace-static-x86_64: Process 3674 attached [pid 3674] set_robust_list(0x555556e316e0, 24) = 0 [pid 3674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3674] setpgid(0, 0) = 0 [pid 3674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3674] write(3, "1000", 4) = 4 [pid 3674] close(3) = 0 [pid 3674] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3674] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3674] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3674] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3675], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3675 [pid 3674] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3674] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3675 attached [pid 3675] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3675] memfd_create("syzkaller", 0) = 3 [pid 3675] ftruncate(3, 0) = 0 [pid 3675] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3675] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3675] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3675] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3675] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3674] <... futex resumed>) = 0 [pid 3674] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3674] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3675] <... futex resumed>) = 1 [pid 3675] pipe2([5, 6], 0) = 0 [pid 3675] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3674] <... futex resumed>) = 0 [pid 3674] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3674] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3675] <... futex resumed>) = 1 [pid 3675] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3675] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3674] <... futex resumed>) = 0 [pid 3674] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3675] <... futex resumed>) = 1 [pid 3674] <... futex resumed>) = 0 [pid 3674] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3675] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3674] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3674] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3674] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3674] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3674] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3676], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3676 [pid 3674] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3674] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3676 attached [pid 3676] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3676] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3675] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3675] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3675] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3676] <... write resumed>) = 8 [pid 3676] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3674] <... futex resumed>) = 0 [pid 3674] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3675] <... futex resumed>) = 0 [pid 3674] <... futex resumed>) = 1 [pid 3675] read(5, [pid 3674] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3675] <... read resumed>NULL, 0) = 0 [pid 3675] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3674] <... futex resumed>) = 0 [pid 3675] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3674] exit_group(0 [pid 3675] <... futex resumed>) = ? [pid 3674] <... exit_group resumed>) = ? [pid 3675] +++ exited with 0 +++ [pid 3676] <... futex resumed>) = ? [pid 3676] +++ exited with 0 +++ [pid 3674] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3674, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3677 ./strace-static-x86_64: Process 3677 attached [pid 3677] set_robust_list(0x555556e316e0, 24) = 0 [pid 3677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3677] setpgid(0, 0) = 0 [pid 3677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3677] write(3, "1000", 4) = 4 [pid 3677] close(3) = 0 [pid 3677] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3677] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3677] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3677] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3678], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3678 [pid 3677] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 3678 attached ) = 0 [pid 3677] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3678] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3678] memfd_create("syzkaller", 0) = 3 [pid 3678] ftruncate(3, 0) = 0 [pid 3678] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3678] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3678] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3678] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3678] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3678] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3677] <... futex resumed>) = 0 [pid 3677] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3677] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3678] <... futex resumed>) = 0 [pid 3678] pipe2([5, 6], 0) = 0 [pid 3678] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3677] <... futex resumed>) = 0 [pid 3677] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3677] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3678] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3678] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3678] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3677] <... futex resumed>) = 0 [pid 3677] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3677] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3678] <... futex resumed>) = 0 [pid 3678] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3677] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3677] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3677] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3677] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3677] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3677] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3677] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3679], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3679 [pid 3677] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3677] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3679 attached [pid 3679] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3679] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3678] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3678] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3678] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3679] <... write resumed>) = 8 [pid 3679] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3677] <... futex resumed>) = 0 [pid 3677] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3678] <... futex resumed>) = 0 [pid 3677] <... futex resumed>) = 1 [pid 3678] read(5, [pid 3677] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3678] <... read resumed>NULL, 0) = 0 [pid 3678] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3677] <... futex resumed>) = 0 [pid 3678] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3677] exit_group(0 [pid 3678] <... futex resumed>) = ? [pid 3677] <... exit_group resumed>) = ? [pid 3678] +++ exited with 0 +++ [pid 3679] <... futex resumed>) = ? [pid 3679] +++ exited with 0 +++ [pid 3677] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3677, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3680 ./strace-static-x86_64: Process 3680 attached [pid 3680] set_robust_list(0x555556e316e0, 24) = 0 [pid 3680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3680] setpgid(0, 0) = 0 [pid 3680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3680] write(3, "1000", 4) = 4 [pid 3680] close(3) = 0 [pid 3680] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3680] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3680] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3680] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3681], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3681 [pid 3680] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3680] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3681 attached [pid 3681] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3681] memfd_create("syzkaller", 0) = 3 [pid 3681] ftruncate(3, 0) = 0 [pid 3681] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3681] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3681] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3681] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3681] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3680] <... futex resumed>) = 0 [pid 3680] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3680] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3681] <... futex resumed>) = 1 [pid 3681] pipe2([5, 6], 0) = 0 [pid 3681] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3680] <... futex resumed>) = 0 [pid 3680] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3680] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3681] <... futex resumed>) = 1 [pid 3681] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3681] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3680] <... futex resumed>) = 0 [pid 3680] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3680] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3681] <... futex resumed>) = 1 [pid 3681] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3680] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3680] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3680] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3680] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3680] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3680] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3680] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3682], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3682 [pid 3680] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3680] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3682 attached [pid 3682] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3682] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3681] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3681] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3681] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3682] <... write resumed>) = 8 [pid 3682] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3680] <... futex resumed>) = 0 [pid 3680] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3681] <... futex resumed>) = 0 [pid 3680] <... futex resumed>) = 1 [pid 3681] read(5, [pid 3680] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3681] <... read resumed>NULL, 0) = 0 [pid 3681] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3680] <... futex resumed>) = 0 [pid 3681] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3680] exit_group(0 [pid 3681] <... futex resumed>) = ? [pid 3680] <... exit_group resumed>) = ? [pid 3681] +++ exited with 0 +++ [pid 3682] <... futex resumed>) = ? [pid 3682] +++ exited with 0 +++ [pid 3680] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3680, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3683 ./strace-static-x86_64: Process 3683 attached [pid 3683] set_robust_list(0x555556e316e0, 24) = 0 [pid 3683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3683] setpgid(0, 0) = 0 [pid 3683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3683] write(3, "1000", 4) = 4 [pid 3683] close(3) = 0 [pid 3683] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3683] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3683] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3683] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3684], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3684 [pid 3683] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3683] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3684 attached [pid 3684] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3684] memfd_create("syzkaller", 0) = 3 [pid 3684] ftruncate(3, 0) = 0 [pid 3684] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3684] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3684] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3684] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3684] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3683] <... futex resumed>) = 0 [pid 3683] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3683] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3684] <... futex resumed>) = 1 [pid 3684] pipe2([5, 6], 0) = 0 [pid 3684] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3683] <... futex resumed>) = 0 [pid 3683] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3683] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3684] <... futex resumed>) = 1 [pid 3684] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3684] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3683] <... futex resumed>) = 0 [pid 3683] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3683] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3684] <... futex resumed>) = 1 [pid 3684] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3683] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3683] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3683] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3683] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3683] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3683] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3685], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3685 [pid 3683] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3683] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3685 attached [pid 3685] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3685] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3685] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3683] <... futex resumed>) = 0 [pid 3683] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3683] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3685] <... futex resumed>) = 1 [pid 3685] read(5, NULL, 0) = 0 [pid 3685] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3683] <... futex resumed>) = 0 [pid 3685] <... futex resumed>) = 1 [pid 3685] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3684] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3684] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3684] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3683] exit_group(0 [pid 3684] <... futex resumed>) = ? [pid 3683] <... exit_group resumed>) = ? [pid 3684] +++ exited with 0 +++ [pid 3685] <... futex resumed>) = ? [pid 3685] +++ exited with 0 +++ [pid 3683] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3683, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3686 ./strace-static-x86_64: Process 3686 attached [pid 3686] set_robust_list(0x555556e316e0, 24) = 0 [pid 3686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3686] setpgid(0, 0) = 0 [pid 3686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3686] write(3, "1000", 4) = 4 [pid 3686] close(3) = 0 [pid 3686] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3686] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3686] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3686] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3687], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3687 [pid 3686] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3686] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3687 attached [pid 3687] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3687] memfd_create("syzkaller", 0) = 3 [pid 3687] ftruncate(3, 0) = 0 [pid 3687] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3687] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3687] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3687] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3687] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3686] <... futex resumed>) = 0 [pid 3686] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3687] <... futex resumed>) = 1 [pid 3686] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3687] pipe2([5, 6], 0) = 0 [pid 3687] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3686] <... futex resumed>) = 0 [pid 3686] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3686] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3687] <... futex resumed>) = 1 [pid 3687] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3687] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3686] <... futex resumed>) = 0 [pid 3686] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3686] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3687] <... futex resumed>) = 1 [pid 3687] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3686] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3686] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3686] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3686] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3686] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3686] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3686] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3688], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3688 [pid 3686] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3686] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3688 attached [pid 3688] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3688] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3687] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3687] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3687] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3688] <... write resumed>) = 8 [pid 3688] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3686] <... futex resumed>) = 0 [pid 3686] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3687] <... futex resumed>) = 0 [pid 3686] <... futex resumed>) = 1 [pid 3687] read(5, [pid 3686] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3687] <... read resumed>NULL, 0) = 0 [pid 3687] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3686] <... futex resumed>) = 0 [pid 3687] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3686] exit_group(0 [pid 3687] <... futex resumed>) = ? [pid 3686] <... exit_group resumed>) = ? [pid 3687] +++ exited with 0 +++ [pid 3688] <... futex resumed>) = ? [pid 3688] +++ exited with 0 +++ [pid 3686] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3686, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3689 ./strace-static-x86_64: Process 3689 attached [pid 3689] set_robust_list(0x555556e316e0, 24) = 0 [pid 3689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3689] setpgid(0, 0) = 0 [pid 3689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3689] write(3, "1000", 4) = 4 [pid 3689] close(3) = 0 [pid 3689] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3689] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3689] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3689] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3690], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3690 [pid 3689] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3689] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3690 attached [pid 3690] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3690] memfd_create("syzkaller", 0) = 3 [pid 3690] ftruncate(3, 0) = 0 [pid 3690] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3690] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3690] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3690] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3690] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3689] <... futex resumed>) = 0 [pid 3689] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3689] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3690] <... futex resumed>) = 1 [pid 3690] pipe2([5, 6], 0) = 0 [pid 3690] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3689] <... futex resumed>) = 0 [pid 3689] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3689] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3690] <... futex resumed>) = 1 [pid 3690] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3690] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3689] <... futex resumed>) = 0 [pid 3689] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3689] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3690] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3689] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3689] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3689] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3689] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3689] clone(child_stack=0x7fbc2b5fd2f0, 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 3691 attached , parent_tid=[3691], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3691 [pid 3689] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3689] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3691] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3691] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3691] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3689] <... futex resumed>) = 0 [pid 3691] read(5, [pid 3689] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3691] <... read resumed>NULL, 0) = 0 [pid 3690] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3689] <... futex resumed>) = 0 [pid 3689] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3690] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3691] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3690] <... futex resumed>) = 0 [pid 3691] <... futex resumed>) = 1 [pid 3690] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3689] <... futex resumed>) = 0 [pid 3691] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3689] exit_group(0 [pid 3691] <... futex resumed>) = ? [pid 3690] <... futex resumed>) = ? [pid 3689] <... exit_group resumed>) = ? [pid 3691] +++ exited with 0 +++ [pid 3690] +++ exited with 0 +++ [pid 3689] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3689, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3692 ./strace-static-x86_64: Process 3692 attached [pid 3692] set_robust_list(0x555556e316e0, 24) = 0 [pid 3692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3692] setpgid(0, 0) = 0 [pid 3692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3692] write(3, "1000", 4) = 4 [pid 3692] close(3) = 0 [pid 3692] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3692] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3692] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3692] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3693], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3693 [pid 3692] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3692] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3693 attached [pid 3693] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3693] memfd_create("syzkaller", 0) = 3 [pid 3693] ftruncate(3, 0) = 0 [pid 3693] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3693] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3693] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3693] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3693] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3692] <... futex resumed>) = 0 [pid 3692] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3692] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3693] <... futex resumed>) = 1 [pid 3693] pipe2([5, 6], 0) = 0 [pid 3693] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3692] <... futex resumed>) = 0 [pid 3692] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3692] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3693] <... futex resumed>) = 1 [pid 3693] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3693] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3692] <... futex resumed>) = 0 [pid 3692] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3692] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3693] <... futex resumed>) = 1 [pid 3693] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3692] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3692] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3692] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3692] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3692] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3694], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3694 [pid 3692] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3692] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3694 attached [pid 3694] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3694] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3693] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3693] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3693] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3694] <... write resumed>) = 8 [pid 3694] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3692] <... futex resumed>) = 0 [pid 3692] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3694] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3693] <... futex resumed>) = 0 [pid 3692] <... futex resumed>) = 1 [pid 3693] read(5, [pid 3692] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3693] <... read resumed>NULL, 0) = 0 [pid 3693] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3692] <... futex resumed>) = 0 [pid 3693] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3692] exit_group(0 [pid 3694] <... futex resumed>) = ? [pid 3693] <... futex resumed>) = ? [pid 3692] <... exit_group resumed>) = ? [pid 3694] +++ exited with 0 +++ [pid 3693] +++ exited with 0 +++ [pid 3692] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3692, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3695 ./strace-static-x86_64: Process 3695 attached [pid 3695] set_robust_list(0x555556e316e0, 24) = 0 [pid 3695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3695] setpgid(0, 0) = 0 [pid 3695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3695] write(3, "1000", 4) = 4 [pid 3695] close(3) = 0 [pid 3695] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3695] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3695] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3695] clone(child_stack=0x7fbc2b61e2f0, 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 3696 attached , parent_tid=[3696], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3696 [pid 3695] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3695] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3696] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3696] memfd_create("syzkaller", 0) = 3 [pid 3696] ftruncate(3, 0) = 0 [pid 3696] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3696] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3696] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3696] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3696] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3695] <... futex resumed>) = 0 [pid 3695] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3695] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3696] <... futex resumed>) = 1 [pid 3696] pipe2([5, 6], 0) = 0 [pid 3696] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3695] <... futex resumed>) = 0 [pid 3695] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3695] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3696] <... futex resumed>) = 1 [pid 3696] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3696] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3695] <... futex resumed>) = 0 [pid 3695] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3695] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3696] <... futex resumed>) = 1 [pid 3696] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3695] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3695] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3695] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3695] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3695] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3695] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3697], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3697 [pid 3695] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3695] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3697 attached [pid 3697] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3697] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3696] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3696] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3697] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3696] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3697] <... futex resumed>) = 1 [pid 3695] <... futex resumed>) = 0 [pid 3697] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3695] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3696] <... futex resumed>) = 0 [pid 3695] <... futex resumed>) = 1 [pid 3696] read(5, NULL, 0) = 0 [pid 3695] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3696] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3695] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3696] <... futex resumed>) = 0 [pid 3695] exit_group(0) = ? [pid 3696] +++ exited with 0 +++ [pid 3697] <... futex resumed>) = ? [pid 3697] +++ exited with 0 +++ [pid 3695] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3695, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3698 ./strace-static-x86_64: Process 3698 attached [pid 3698] set_robust_list(0x555556e316e0, 24) = 0 [pid 3698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3698] setpgid(0, 0) = 0 [pid 3698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3698] write(3, "1000", 4) = 4 [pid 3698] close(3) = 0 [pid 3698] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3698] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3698] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3698] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3699], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3699 [pid 3698] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3698] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3699 attached [pid 3699] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3699] memfd_create("syzkaller", 0) = 3 [pid 3699] ftruncate(3, 0) = 0 [pid 3699] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3699] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3699] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3699] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3699] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3698] <... futex resumed>) = 0 [pid 3698] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3698] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3699] <... futex resumed>) = 1 [pid 3699] pipe2([5, 6], 0) = 0 [pid 3699] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3698] <... futex resumed>) = 0 [pid 3698] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3698] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3699] <... futex resumed>) = 1 [pid 3699] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3699] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3699] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3698] <... futex resumed>) = 0 [pid 3698] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3698] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3699] <... futex resumed>) = 0 [pid 3699] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3698] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3698] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3698] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3698] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3698] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3698] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3698] clone(child_stack=0x7fbc2b5fd2f0, 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 3700 attached , parent_tid=[3700], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3700 [pid 3700] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3700] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3698] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3700] <... futex resumed>) = 0 [pid 3698] <... futex resumed>) = 1 [pid 3700] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3698] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3700] <... write resumed>) = 8 [pid 3699] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3700] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3699] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3700] <... futex resumed>) = 1 [pid 3698] <... futex resumed>) = 0 [pid 3700] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3698] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3698] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3699] <... futex resumed>) = 1 [pid 3698] <... futex resumed>) = 0 [pid 3699] read(5, [pid 3698] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000} [pid 3699] <... read resumed>NULL, 0) = 0 [pid 3699] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3698] <... futex resumed>) = 0 [pid 3699] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3698] exit_group(0 [pid 3699] <... futex resumed>) = ? [pid 3698] <... exit_group resumed>) = ? [pid 3699] +++ exited with 0 +++ [pid 3700] <... futex resumed>) = ? [pid 3700] +++ exited with 0 +++ [pid 3698] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3698, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3701 ./strace-static-x86_64: Process 3701 attached [pid 3701] set_robust_list(0x555556e316e0, 24) = 0 [pid 3701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3701] setpgid(0, 0) = 0 [pid 3701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3701] write(3, "1000", 4) = 4 [pid 3701] close(3) = 0 [pid 3701] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3701] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3701] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3701] clone(child_stack=0x7fbc2b61e2f0, 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 3702 attached , parent_tid=[3702], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3702 [pid 3702] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3702] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 3701] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3702] memfd_create("syzkaller", 0) = 3 [pid 3702] ftruncate(3, 0) = 0 [pid 3702] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3702] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3702] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3702] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3702] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3702] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3701] <... futex resumed>) = 0 [pid 3701] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3701] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3702] <... futex resumed>) = 0 [pid 3701] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3702] pipe2([5, 6], 0) = 0 [pid 3702] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3702] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3701] <... futex resumed>) = 0 [pid 3701] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3702] <... futex resumed>) = 0 [pid 3702] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3702] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3701] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3702] <... futex resumed>) = 0 [pid 3702] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3701] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3701] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3702] <... futex resumed>) = 0 [pid 3702] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3701] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3701] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3701] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3701] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3701] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3703], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3703 [pid 3701] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3701] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3703 attached [pid 3703] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3703] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3702] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3703] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3702] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3701] <... futex resumed>) = 0 [pid 3701] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3702] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3701] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3702] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3703] <... futex resumed>) = 1 [pid 3702] read(5, [pid 3703] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3702] <... read resumed>NULL, 0) = 0 [pid 3702] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3701] <... futex resumed>) = 0 [pid 3702] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3701] exit_group(0 [pid 3702] <... futex resumed>) = ? [pid 3701] <... exit_group resumed>) = ? [pid 3702] +++ exited with 0 +++ [pid 3703] <... futex resumed>) = ? [pid 3703] +++ exited with 0 +++ [pid 3701] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3701, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3704 ./strace-static-x86_64: Process 3704 attached [pid 3704] set_robust_list(0x555556e316e0, 24) = 0 [pid 3704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3704] setpgid(0, 0) = 0 [pid 3704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3704] write(3, "1000", 4) = 4 [pid 3704] close(3) = 0 [pid 3704] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3704] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3704] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3704] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3705], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3705 [pid 3704] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3704] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3705 attached [pid 3705] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3705] memfd_create("syzkaller", 0) = 3 [pid 3705] ftruncate(3, 0) = 0 [pid 3705] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3705] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3705] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3705] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3705] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3704] <... futex resumed>) = 0 [pid 3704] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3704] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3705] <... futex resumed>) = 1 [pid 3705] pipe2([5, 6], 0) = 0 [pid 3705] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3704] <... futex resumed>) = 0 [pid 3704] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3704] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3705] <... futex resumed>) = 1 [pid 3705] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3705] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3704] <... futex resumed>) = 0 [pid 3704] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3704] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3705] <... futex resumed>) = 1 [pid 3705] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3704] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3704] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3704] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3704] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3704] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3706], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3706 [pid 3704] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3704] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3706 attached [pid 3706] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3706] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3706] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3704] <... futex resumed>) = 0 [pid 3704] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3704] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3706] <... futex resumed>) = 1 [pid 3706] read(5, NULL, 0) = 0 [pid 3706] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3704] <... futex resumed>) = 0 [pid 3706] <... futex resumed>) = 1 [pid 3706] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3705] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3705] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3705] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3704] exit_group(0 [pid 3706] <... futex resumed>) = ? [pid 3704] <... exit_group resumed>) = ? [pid 3705] <... futex resumed>) = ? [pid 3706] +++ exited with 0 +++ [pid 3705] +++ exited with 0 +++ [pid 3704] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3704, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3707 ./strace-static-x86_64: Process 3707 attached [pid 3707] set_robust_list(0x555556e316e0, 24) = 0 [pid 3707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3707] setpgid(0, 0) = 0 [pid 3707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3707] write(3, "1000", 4) = 4 [pid 3707] close(3) = 0 [pid 3707] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3707] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3707] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3707] clone(child_stack=0x7fbc2b61e2f0, 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 3708 attached , parent_tid=[3708], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3708 [pid 3707] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3707] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3708] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3708] memfd_create("syzkaller", 0) = 3 [pid 3708] ftruncate(3, 0) = 0 [pid 3708] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3708] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3708] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3708] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3708] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3707] <... futex resumed>) = 0 [pid 3707] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3707] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3708] pipe2([5, 6], 0) = 0 [pid 3708] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3707] <... futex resumed>) = 0 [pid 3707] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3707] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3708] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3708] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3707] <... futex resumed>) = 0 [pid 3707] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3707] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3708] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3707] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3707] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3707] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3707] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3707] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3707] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3707] clone(child_stack=0x7fbc2b5fd2f0, 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 3709 attached [pid 3709] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3709] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3707] <... clone resumed>, parent_tid=[3709], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3709 [pid 3707] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3709] <... futex resumed>) = 0 [pid 3707] <... futex resumed>) = 1 [pid 3709] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3707] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3709] <... write resumed>) = 8 [pid 3708] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3709] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3708] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3709] <... futex resumed>) = 1 [pid 3708] <... futex resumed>) = 0 [pid 3707] <... futex resumed>) = 0 [pid 3709] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3708] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 3707] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3708] read(5, NULL, 0) = 0 [pid 3707] <... futex resumed>) = 0 [pid 3708] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3707] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3708] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3707] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3707] exit_group(0 [pid 3709] <... futex resumed>) = ? [pid 3708] <... futex resumed>) = ? [pid 3707] <... exit_group resumed>) = ? [pid 3709] +++ exited with 0 +++ [pid 3708] +++ exited with 0 +++ [pid 3707] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3707, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3710 ./strace-static-x86_64: Process 3710 attached [pid 3710] set_robust_list(0x555556e316e0, 24) = 0 [pid 3710] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3710] setpgid(0, 0) = 0 [pid 3710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3710] write(3, "1000", 4) = 4 [pid 3710] close(3) = 0 [pid 3710] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3710] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3710] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3710] clone(child_stack=0x7fbc2b61e2f0, 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 3711 attached , parent_tid=[3711], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3711 [pid 3710] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3710] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3711] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3711] memfd_create("syzkaller", 0) = 3 [pid 3711] ftruncate(3, 0) = 0 [pid 3711] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3711] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3711] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3711] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3711] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3711] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3710] <... futex resumed>) = 0 [pid 3710] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3710] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3711] <... futex resumed>) = 0 [pid 3711] pipe2([5, 6], 0) = 0 [pid 3711] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3710] <... futex resumed>) = 0 [pid 3710] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3710] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3711] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3711] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3710] <... futex resumed>) = 0 [pid 3710] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3710] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3711] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3710] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3710] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3710] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3710] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3710] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3710] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3710] clone(child_stack=0x7fbc2b5fd2f0, 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 3712 attached , parent_tid=[3712], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3712 [pid 3712] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3710] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3712] <... set_robust_list resumed>) = 0 [pid 3710] <... futex resumed>) = 0 [pid 3712] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3710] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3712] <... write resumed>) = 8 [pid 3712] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3710] <... futex resumed>) = 0 [pid 3712] read(5, [pid 3710] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3712] <... read resumed>NULL, 0) = 0 [pid 3710] <... futex resumed>) = 0 [pid 3712] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3710] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3712] <... futex resumed>) = 0 [pid 3710] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3712] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3711] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3711] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3711] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3710] exit_group(0 [pid 3711] <... futex resumed>) = ? [pid 3710] <... exit_group resumed>) = ? [pid 3712] <... futex resumed>) = ? [pid 3711] +++ exited with 0 +++ [pid 3712] +++ exited with 0 +++ [pid 3710] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3710, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3713 ./strace-static-x86_64: Process 3713 attached [pid 3713] set_robust_list(0x555556e316e0, 24) = 0 [pid 3713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3713] setpgid(0, 0) = 0 [pid 3713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3713] write(3, "1000", 4) = 4 [pid 3713] close(3) = 0 [pid 3713] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3713] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3713] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3713] clone(child_stack=0x7fbc2b61e2f0, 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 3714 attached , parent_tid=[3714], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3714 [pid 3713] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3713] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3714] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3714] memfd_create("syzkaller", 0) = 3 [pid 3714] ftruncate(3, 0) = 0 [pid 3714] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3714] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3714] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3714] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3714] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3713] <... futex resumed>) = 0 [pid 3713] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3713] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3714] pipe2([5, 6], 0) = 0 [pid 3714] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3713] <... futex resumed>) = 0 [pid 3713] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3713] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3714] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3714] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3713] <... futex resumed>) = 0 [pid 3713] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3713] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3714] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3713] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3713] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3713] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3713] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3713] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3713] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3713] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3713] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3715], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3715 [pid 3713] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3713] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3715 attached [pid 3715] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3715] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3715] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3713] <... futex resumed>) = 0 [pid 3713] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3713] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3715] <... futex resumed>) = 1 [pid 3715] read(5, NULL, 0) = 0 [pid 3715] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3713] <... futex resumed>) = 0 [pid 3715] <... futex resumed>) = 1 [pid 3715] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3714] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3714] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3714] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3713] exit_group(0) = ? [pid 3715] <... futex resumed>) = ? [pid 3714] <... futex resumed>) = ? [pid 3714] +++ exited with 0 +++ [pid 3715] +++ exited with 0 +++ [pid 3713] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3713, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3716 ./strace-static-x86_64: Process 3716 attached [pid 3716] set_robust_list(0x555556e316e0, 24) = 0 [pid 3716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3716] setpgid(0, 0) = 0 [pid 3716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3716] write(3, "1000", 4) = 4 [pid 3716] close(3) = 0 [pid 3716] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3716] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3716] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3716] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3717], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3717 [pid 3716] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3716] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3717 attached [pid 3717] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3717] memfd_create("syzkaller", 0) = 3 [pid 3717] ftruncate(3, 0) = 0 [pid 3717] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3717] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3717] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3717] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3717] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3716] <... futex resumed>) = 0 [pid 3716] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3716] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3717] <... futex resumed>) = 1 [pid 3717] pipe2([5, 6], 0) = 0 [pid 3717] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3716] <... futex resumed>) = 0 [pid 3716] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3716] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3717] <... futex resumed>) = 1 [pid 3717] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3717] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3716] <... futex resumed>) = 0 [pid 3716] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3716] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3717] <... futex resumed>) = 1 [pid 3717] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3716] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3716] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3716] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3716] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3716] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3716] clone(child_stack=0x7fbc2b5fd2f0, 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 3718 attached , parent_tid=[3718], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3718 [pid 3718] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3716] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3718] <... set_robust_list resumed>) = 0 [pid 3716] <... futex resumed>) = 0 [pid 3718] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3716] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3717] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3718] <... write resumed>) = 8 [pid 3717] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3718] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3717] <... futex resumed>) = 0 [pid 3718] <... futex resumed>) = 1 [pid 3717] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3716] <... futex resumed>) = 0 [pid 3718] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3716] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3717] <... futex resumed>) = 0 [pid 3716] <... futex resumed>) = 1 [pid 3717] read(5, [pid 3716] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3717] <... read resumed>NULL, 0) = 0 [pid 3717] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3716] <... futex resumed>) = 0 [pid 3717] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3716] exit_group(0 [pid 3718] <... futex resumed>) = ? [pid 3717] <... futex resumed>) = ? [pid 3716] <... exit_group resumed>) = ? [pid 3718] +++ exited with 0 +++ [pid 3717] +++ exited with 0 +++ [pid 3716] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3716, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3719 attached , child_tidptr=0x555556e316d0) = 3719 [pid 3719] set_robust_list(0x555556e316e0, 24) = 0 [pid 3719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3719] setpgid(0, 0) = 0 [pid 3719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3719] write(3, "1000", 4) = 4 [pid 3719] close(3) = 0 [pid 3719] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3719] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3719] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3719] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3720], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3720 [pid 3719] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3719] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3720 attached [pid 3720] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3720] memfd_create("syzkaller", 0) = 3 [pid 3720] ftruncate(3, 0) = 0 [pid 3720] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3720] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3720] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3720] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3720] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3719] <... futex resumed>) = 0 [pid 3719] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3719] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3720] <... futex resumed>) = 1 [pid 3720] pipe2([5, 6], 0) = 0 [pid 3720] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3719] <... futex resumed>) = 0 [pid 3719] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3719] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3720] <... futex resumed>) = 1 [pid 3720] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3720] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3719] <... futex resumed>) = 0 [pid 3719] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3719] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3720] <... futex resumed>) = 1 [pid 3720] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3719] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3719] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3719] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3719] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3719] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3719] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3719] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3721], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3721 [pid 3719] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3719] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3721 attached [pid 3721] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3721] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3720] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3721] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3720] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3721] <... futex resumed>) = 1 [pid 3720] <... futex resumed>) = 0 [pid 3719] <... futex resumed>) = 0 [pid 3721] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3720] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3719] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3720] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3719] <... futex resumed>) = 0 [pid 3720] read(5, [pid 3719] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3720] <... read resumed>NULL, 0) = 0 [pid 3720] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3719] <... futex resumed>) = 0 [pid 3720] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3719] exit_group(0 [pid 3721] <... futex resumed>) = ? [pid 3720] <... futex resumed>) = ? [pid 3719] <... exit_group resumed>) = ? [pid 3721] +++ exited with 0 +++ [pid 3720] +++ exited with 0 +++ [pid 3719] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3719, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3722 ./strace-static-x86_64: Process 3722 attached [pid 3722] set_robust_list(0x555556e316e0, 24) = 0 [pid 3722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3722] setpgid(0, 0) = 0 [pid 3722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3722] write(3, "1000", 4) = 4 [pid 3722] close(3) = 0 [pid 3722] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3722] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3722] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3722] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3723], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3723 [pid 3722] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3722] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3723 attached [pid 3723] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3723] memfd_create("syzkaller", 0) = 3 [pid 3723] ftruncate(3, 0) = 0 [pid 3723] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3723] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3723] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3723] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3723] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3722] <... futex resumed>) = 0 [pid 3722] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3722] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3723] <... futex resumed>) = 1 [pid 3723] pipe2([5, 6], 0) = 0 [pid 3723] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3722] <... futex resumed>) = 0 [pid 3722] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3722] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3723] <... futex resumed>) = 1 [pid 3723] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3723] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3722] <... futex resumed>) = 0 [pid 3722] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3722] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3723] <... futex resumed>) = 1 [pid 3723] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3722] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3722] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3722] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3722] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3722] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3722] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3724], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3724 [pid 3722] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3722] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3724 attached [pid 3724] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3724] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3724] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3722] <... futex resumed>) = 0 [pid 3722] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3722] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3724] <... futex resumed>) = 1 [pid 3724] read(5, NULL, 0) = 0 [pid 3723] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3724] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3722] <... futex resumed>) = 0 [pid 3724] <... futex resumed>) = 1 [pid 3724] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3723] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3723] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3722] exit_group(0 [pid 3723] <... futex resumed>) = ? [pid 3722] <... exit_group resumed>) = ? [pid 3724] <... futex resumed>) = ? [pid 3724] +++ exited with 0 +++ [pid 3723] +++ exited with 0 +++ [pid 3722] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3722, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3725 ./strace-static-x86_64: Process 3725 attached [pid 3725] set_robust_list(0x555556e316e0, 24) = 0 [pid 3725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3725] setpgid(0, 0) = 0 [pid 3725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3725] write(3, "1000", 4) = 4 [pid 3725] close(3) = 0 [pid 3725] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3725] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3725] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3725] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3726], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3726 [pid 3725] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3725] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3726 attached [pid 3726] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3726] memfd_create("syzkaller", 0) = 3 [pid 3726] ftruncate(3, 0) = 0 [pid 3726] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3726] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3726] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3726] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3726] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3725] <... futex resumed>) = 0 [pid 3725] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3725] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3726] <... futex resumed>) = 1 [pid 3726] pipe2([5, 6], 0) = 0 [pid 3726] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3725] <... futex resumed>) = 0 [pid 3725] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3725] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3726] <... futex resumed>) = 1 [pid 3726] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3726] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3725] <... futex resumed>) = 0 [pid 3725] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3725] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3726] <... futex resumed>) = 1 [pid 3726] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3725] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3725] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3725] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3725] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3725] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3727], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3727 ./strace-static-x86_64: Process 3727 attached [pid 3725] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3725] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3727] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3727] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3727] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3726] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3727] <... futex resumed>) = 1 [pid 3726] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3725] <... futex resumed>) = 0 [pid 3727] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3726] <... futex resumed>) = 0 [pid 3725] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3726] read(5, [pid 3725] <... futex resumed>) = 0 [pid 3726] <... read resumed>NULL, 0) = 0 [pid 3725] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3726] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3725] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3726] <... futex resumed>) = 0 [pid 3725] exit_group(0 [pid 3727] <... futex resumed>) = ? [pid 3725] <... exit_group resumed>) = ? [pid 3727] +++ exited with 0 +++ [pid 3726] +++ exited with 0 +++ [pid 3725] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3725, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3728 ./strace-static-x86_64: Process 3728 attached [pid 3728] set_robust_list(0x555556e316e0, 24) = 0 [pid 3728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3728] setpgid(0, 0) = 0 [pid 3728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3728] write(3, "1000", 4) = 4 [pid 3728] close(3) = 0 [pid 3728] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3728] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3728] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3728] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3729], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3729 [pid 3728] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3728] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3729 attached [pid 3729] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3729] memfd_create("syzkaller", 0) = 3 [pid 3729] ftruncate(3, 0) = 0 [pid 3729] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3729] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3729] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3729] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3729] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3728] <... futex resumed>) = 0 [pid 3728] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3729] pipe2( [pid 3728] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3729] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3729] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3728] <... futex resumed>) = 0 [pid 3729] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3728] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3728] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3729] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3729] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3729] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3728] <... futex resumed>) = 0 [pid 3729] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3728] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3729] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3728] <... futex resumed>) = 0 [pid 3729] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3728] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3728] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3728] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3728] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3728] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3728] clone(child_stack=0x7fbc2b5fd2f0, 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 3730 attached , parent_tid=[3730], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3730 [pid 3728] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3728] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3730] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3730] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3729] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3729] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3729] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3730] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3728] <... futex resumed>) = 0 [pid 3730] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3728] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3729] <... futex resumed>) = 0 [pid 3728] <... futex resumed>) = 1 [pid 3729] read(5, [pid 3728] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3729] <... read resumed>NULL, 0) = 0 [pid 3729] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3728] <... futex resumed>) = 0 [pid 3729] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3728] exit_group(0 [pid 3730] <... futex resumed>) = ? [pid 3729] <... futex resumed>) = ? [pid 3728] <... exit_group resumed>) = ? [pid 3730] +++ exited with 0 +++ [pid 3729] +++ exited with 0 +++ [pid 3728] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3728, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3731 attached , child_tidptr=0x555556e316d0) = 3731 [pid 3731] set_robust_list(0x555556e316e0, 24) = 0 [pid 3731] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3731] setpgid(0, 0) = 0 [pid 3731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3731] write(3, "1000", 4) = 4 [pid 3731] close(3) = 0 [pid 3731] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3731] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3731] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3731] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3732], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3732 [pid 3731] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3731] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3732 attached [pid 3732] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3732] memfd_create("syzkaller", 0) = 3 [pid 3732] ftruncate(3, 0) = 0 [pid 3732] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3732] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3732] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3732] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3732] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3731] <... futex resumed>) = 0 [pid 3731] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3731] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3732] <... futex resumed>) = 1 [pid 3732] pipe2([5, 6], 0) = 0 [pid 3732] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3731] <... futex resumed>) = 0 [pid 3731] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3731] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3732] <... futex resumed>) = 1 [pid 3732] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3732] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3731] <... futex resumed>) = 0 [pid 3731] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3731] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3732] <... futex resumed>) = 1 [pid 3732] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3731] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3731] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3731] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3731] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3731] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3733], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3733 [pid 3731] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3731] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3733 attached [pid 3733] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3733] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3732] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3732] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3732] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3733] <... write resumed>) = 8 [pid 3733] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3731] <... futex resumed>) = 0 [pid 3731] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3732] <... futex resumed>) = 0 [pid 3731] <... futex resumed>) = 1 [pid 3732] read(5, [pid 3731] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3732] <... read resumed>NULL, 0) = 0 [pid 3732] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3731] <... futex resumed>) = 0 [pid 3732] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3731] exit_group(0 [pid 3732] <... futex resumed>) = ? [pid 3731] <... exit_group resumed>) = ? [pid 3732] +++ exited with 0 +++ [pid 3733] <... futex resumed>) = ? [pid 3733] +++ exited with 0 +++ [pid 3731] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3731, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3734 ./strace-static-x86_64: Process 3734 attached [pid 3734] set_robust_list(0x555556e316e0, 24) = 0 [pid 3734] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3734] setpgid(0, 0) = 0 [pid 3734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3734] write(3, "1000", 4) = 4 [pid 3734] close(3) = 0 [pid 3734] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3734] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3734] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3734] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3735], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3735 [pid 3734] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3734] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3735 attached [pid 3735] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3735] memfd_create("syzkaller", 0) = 3 [pid 3735] ftruncate(3, 0) = 0 [pid 3735] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3735] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3735] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3735] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3735] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3734] <... futex resumed>) = 0 [pid 3734] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3734] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3735] <... futex resumed>) = 1 [pid 3735] pipe2([5, 6], 0) = 0 [pid 3735] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3734] <... futex resumed>) = 0 [pid 3734] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3734] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3735] <... futex resumed>) = 1 [pid 3735] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3735] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3734] <... futex resumed>) = 0 [pid 3734] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3734] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3735] <... futex resumed>) = 1 [pid 3735] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3734] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3734] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3734] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3734] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3734] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3734] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3736], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3736 [pid 3734] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3734] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3736 attached [pid 3736] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3736] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3735] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3735] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3735] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3736] <... write resumed>) = 8 [pid 3736] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3734] <... futex resumed>) = 0 [pid 3734] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3735] <... futex resumed>) = 0 [pid 3734] <... futex resumed>) = 1 [pid 3735] read(5, [pid 3734] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3735] <... read resumed>NULL, 0) = 0 [pid 3735] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3734] <... futex resumed>) = 0 [pid 3735] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3734] exit_group(0 [pid 3735] <... futex resumed>) = ? [pid 3734] <... exit_group resumed>) = ? [pid 3735] +++ exited with 0 +++ [pid 3736] <... futex resumed>) = ? [pid 3736] +++ exited with 0 +++ [pid 3734] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3734, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3737 ./strace-static-x86_64: Process 3737 attached [pid 3737] set_robust_list(0x555556e316e0, 24) = 0 [pid 3737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3737] setpgid(0, 0) = 0 [pid 3737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3737] write(3, "1000", 4) = 4 [pid 3737] close(3) = 0 [pid 3737] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3737] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3737] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3737] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3738], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3738 [pid 3737] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3737] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3738 attached [pid 3738] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3738] memfd_create("syzkaller", 0) = 3 [pid 3738] ftruncate(3, 0) = 0 [pid 3738] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3738] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3738] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3738] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3738] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3737] <... futex resumed>) = 0 [pid 3737] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3738] pipe2( [pid 3737] <... futex resumed>) = 0 [pid 3737] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3738] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3738] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3737] <... futex resumed>) = 0 [pid 3738] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3737] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3738] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3737] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3738] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3738] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3737] <... futex resumed>) = 0 [pid 3737] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3737] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3738] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3737] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3737] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3737] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3737] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3737] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3737] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3739], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3739 [pid 3737] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3737] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3739 attached [pid 3739] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3739] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3738] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3738] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3738] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3739] <... write resumed>) = 8 [pid 3739] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3737] <... futex resumed>) = 0 [pid 3737] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3738] <... futex resumed>) = 0 [pid 3737] <... futex resumed>) = 1 [pid 3738] read(5, [pid 3737] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3738] <... read resumed>NULL, 0) = 0 [pid 3738] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3737] <... futex resumed>) = 0 [pid 3738] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3737] exit_group(0 [pid 3738] <... futex resumed>) = ? [pid 3737] <... exit_group resumed>) = ? [pid 3738] +++ exited with 0 +++ [pid 3739] <... futex resumed>) = ? [pid 3739] +++ exited with 0 +++ [pid 3737] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3737, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3740 ./strace-static-x86_64: Process 3740 attached [pid 3740] set_robust_list(0x555556e316e0, 24) = 0 [pid 3740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3740] setpgid(0, 0) = 0 [pid 3740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3740] write(3, "1000", 4) = 4 [pid 3740] close(3) = 0 [pid 3740] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3740] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3740] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3740] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3741], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3741 [pid 3740] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3740] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3741 attached [pid 3741] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3741] memfd_create("syzkaller", 0) = 3 [pid 3741] ftruncate(3, 0) = 0 [pid 3741] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3741] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3741] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3741] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3741] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3740] <... futex resumed>) = 0 [pid 3741] <... futex resumed>) = 1 [pid 3741] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3740] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3740] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3741] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3741] pipe2([5, 6], 0) = 0 [pid 3741] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3740] <... futex resumed>) = 0 [pid 3740] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3740] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3741] <... futex resumed>) = 1 [pid 3741] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3741] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3740] <... futex resumed>) = 0 [pid 3740] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3740] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3741] <... futex resumed>) = 1 [pid 3741] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3740] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3740] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3740] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3740] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3740] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3742], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3742 [pid 3740] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3740] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3742 attached [pid 3742] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3742] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3741] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3741] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3741] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3742] <... write resumed>) = 8 [pid 3742] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3740] <... futex resumed>) = 0 [pid 3740] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3741] <... futex resumed>) = 0 [pid 3740] <... futex resumed>) = 1 [pid 3741] read(5, [pid 3740] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3741] <... read resumed>NULL, 0) = 0 [pid 3741] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3740] <... futex resumed>) = 0 [pid 3741] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3740] exit_group(0 [pid 3741] <... futex resumed>) = ? [pid 3740] <... exit_group resumed>) = ? [pid 3741] +++ exited with 0 +++ [pid 3742] <... futex resumed>) = ? [pid 3742] +++ exited with 0 +++ [pid 3740] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3740, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3743 ./strace-static-x86_64: Process 3743 attached [pid 3743] set_robust_list(0x555556e316e0, 24) = 0 [pid 3743] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3743] setpgid(0, 0) = 0 [pid 3743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3743] write(3, "1000", 4) = 4 [pid 3743] close(3) = 0 [pid 3743] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3743] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3743] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3743] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3744], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3744 [pid 3743] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3743] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3744 attached [pid 3744] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3744] memfd_create("syzkaller", 0) = 3 [pid 3744] ftruncate(3, 0) = 0 [pid 3744] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3744] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3744] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3744] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3744] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3743] <... futex resumed>) = 0 [pid 3743] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3743] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3744] <... futex resumed>) = 1 [pid 3744] pipe2([5, 6], 0) = 0 [pid 3744] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3743] <... futex resumed>) = 0 [pid 3743] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3743] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3744] <... futex resumed>) = 1 [pid 3744] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3744] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3743] <... futex resumed>) = 0 [pid 3744] <... futex resumed>) = 1 [pid 3744] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3743] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3743] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3743] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3743] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3743] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3743] clone(child_stack=0x7fbc2b5fd2f0, 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 3745 attached , parent_tid=[3745], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3745 [pid 3745] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3743] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3745] <... set_robust_list resumed>) = 0 [pid 3743] <... futex resumed>) = 0 [pid 3743] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3745] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3745] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3744] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3745] <... futex resumed>) = 1 [pid 3744] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3743] <... futex resumed>) = 0 [pid 3745] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3744] <... futex resumed>) = 0 [pid 3744] read(5, [pid 3743] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3744] <... read resumed>NULL, 0) = 0 [pid 3744] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3743] <... futex resumed>) = 0 [pid 3744] <... futex resumed>) = 0 [pid 3744] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3743] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3743] exit_group(0 [pid 3744] <... futex resumed>) = ? [pid 3743] <... exit_group resumed>) = ? [pid 3745] <... futex resumed>) = ? [pid 3744] +++ exited with 0 +++ [pid 3745] +++ exited with 0 +++ [pid 3743] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3743, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3746 ./strace-static-x86_64: Process 3746 attached [pid 3746] set_robust_list(0x555556e316e0, 24) = 0 [pid 3746] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3746] setpgid(0, 0) = 0 [pid 3746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3746] write(3, "1000", 4) = 4 [pid 3746] close(3) = 0 [pid 3746] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3746] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3746] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3746] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3747], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3747 [pid 3746] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3746] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3747 attached [pid 3747] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3747] memfd_create("syzkaller", 0) = 3 [pid 3747] ftruncate(3, 0) = 0 [pid 3747] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3747] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3747] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3747] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3747] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3746] <... futex resumed>) = 0 [pid 3746] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3746] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3747] <... futex resumed>) = 1 [pid 3747] pipe2([5, 6], 0) = 0 [pid 3747] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3746] <... futex resumed>) = 0 [pid 3746] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3746] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3747] <... futex resumed>) = 1 [pid 3747] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3747] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3746] <... futex resumed>) = 0 [pid 3746] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3746] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3747] <... futex resumed>) = 1 [pid 3747] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3746] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3746] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3746] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3746] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3746] clone(child_stack=0x7fbc2b5fd2f0, 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 3748 attached , parent_tid=[3748], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3748 [pid 3748] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3746] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3748] <... set_robust_list resumed>) = 0 [pid 3746] <... futex resumed>) = 0 [pid 3748] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3746] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3748] <... write resumed>) = 8 [pid 3747] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3748] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3747] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3748] <... futex resumed>) = 1 [pid 3747] <... futex resumed>) = 0 [pid 3746] <... futex resumed>) = 0 [pid 3748] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3747] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3746] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3747] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3746] <... futex resumed>) = 0 [pid 3747] read(5, [pid 3746] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3747] <... read resumed>NULL, 0) = 0 [pid 3747] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3746] <... futex resumed>) = 0 [pid 3747] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3746] exit_group(0 [pid 3748] <... futex resumed>) = ? [pid 3747] <... futex resumed>) = ? [pid 3746] <... exit_group resumed>) = ? [pid 3748] +++ exited with 0 +++ [pid 3747] +++ exited with 0 +++ [pid 3746] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3746, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3749 ./strace-static-x86_64: Process 3749 attached [pid 3749] set_robust_list(0x555556e316e0, 24) = 0 [pid 3749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3749] setpgid(0, 0) = 0 [pid 3749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3749] write(3, "1000", 4) = 4 [pid 3749] close(3) = 0 [pid 3749] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3749] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3749] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3749] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3750], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3750 [pid 3749] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3749] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3750 attached [pid 3750] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3750] memfd_create("syzkaller", 0) = 3 [pid 3750] ftruncate(3, 0) = 0 [pid 3750] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3750] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3750] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3750] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3750] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3749] <... futex resumed>) = 0 [pid 3749] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3749] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3750] <... futex resumed>) = 1 [pid 3750] pipe2([5, 6], 0) = 0 [pid 3750] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3749] <... futex resumed>) = 0 [pid 3749] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3749] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3750] <... futex resumed>) = 1 [pid 3750] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3750] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3749] <... futex resumed>) = 0 [pid 3749] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3749] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3750] <... futex resumed>) = 1 [pid 3750] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3749] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3749] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3749] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3749] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3749] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3751], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3751 [pid 3749] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3749] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3751 attached [pid 3751] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3751] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3750] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3750] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3750] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3751] <... write resumed>) = 8 [pid 3751] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3749] <... futex resumed>) = 0 [pid 3749] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3750] <... futex resumed>) = 0 [pid 3749] <... futex resumed>) = 1 [pid 3750] read(5, [pid 3749] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3750] <... read resumed>NULL, 0) = 0 [pid 3750] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3749] <... futex resumed>) = 0 [pid 3750] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3749] exit_group(0 [pid 3750] <... futex resumed>) = ? [pid 3749] <... exit_group resumed>) = ? [pid 3750] +++ exited with 0 +++ [pid 3751] <... futex resumed>) = ? [pid 3751] +++ exited with 0 +++ [pid 3749] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3749, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3752 attached , child_tidptr=0x555556e316d0) = 3752 [pid 3752] set_robust_list(0x555556e316e0, 24) = 0 [pid 3752] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3752] setpgid(0, 0) = 0 [pid 3752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3752] write(3, "1000", 4) = 4 [pid 3752] close(3) = 0 [pid 3752] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3752] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3752] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3752] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3753], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3753 [pid 3752] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3752] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3753 attached [pid 3753] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3753] memfd_create("syzkaller", 0) = 3 [pid 3753] ftruncate(3, 0) = 0 [pid 3753] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3753] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3753] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3753] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3753] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3752] <... futex resumed>) = 0 [pid 3752] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3752] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3753] <... futex resumed>) = 1 [pid 3753] pipe2([5, 6], 0) = 0 [pid 3753] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3752] <... futex resumed>) = 0 [pid 3752] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3752] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3753] <... futex resumed>) = 1 [pid 3753] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3753] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3752] <... futex resumed>) = 0 [pid 3752] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3752] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3753] <... futex resumed>) = 1 [pid 3753] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3752] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3752] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3752] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3752] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3752] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3752] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3752] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3754], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3754 [pid 3752] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3752] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3754 attached [pid 3754] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3754] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3753] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3753] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3753] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3754] <... write resumed>) = 8 [pid 3754] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3752] <... futex resumed>) = 0 [pid 3752] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3753] <... futex resumed>) = 0 [pid 3752] <... futex resumed>) = 1 [pid 3753] read(5, [pid 3752] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3753] <... read resumed>NULL, 0) = 0 [pid 3753] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3752] <... futex resumed>) = 0 [pid 3753] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3752] exit_group(0 [pid 3753] <... futex resumed>) = ? [pid 3752] <... exit_group resumed>) = ? [pid 3753] +++ exited with 0 +++ [pid 3754] <... futex resumed>) = ? [pid 3754] +++ exited with 0 +++ [pid 3752] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3752, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3755 ./strace-static-x86_64: Process 3755 attached [pid 3755] set_robust_list(0x555556e316e0, 24) = 0 [pid 3755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3755] setpgid(0, 0) = 0 [pid 3755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3755] write(3, "1000", 4) = 4 [pid 3755] close(3) = 0 [pid 3755] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3755] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3755] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3755] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3756], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3756 [pid 3755] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3755] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3756 attached [pid 3756] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3756] memfd_create("syzkaller", 0) = 3 [pid 3756] ftruncate(3, 0) = 0 [pid 3756] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3756] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3756] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3756] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3756] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3755] <... futex resumed>) = 0 [pid 3755] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3755] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3756] <... futex resumed>) = 1 [pid 3756] pipe2([5, 6], 0) = 0 [pid 3756] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3755] <... futex resumed>) = 0 [pid 3756] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3755] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3756] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3755] <... futex resumed>) = 0 [pid 3756] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 3755] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3756] <... write resumed>) = 64568 [pid 3756] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3755] <... futex resumed>) = 0 [pid 3755] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3755] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3756] <... futex resumed>) = 1 [pid 3756] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3755] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3755] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3755] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3755] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3755] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3757], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3757 [pid 3755] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3755] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3757 attached [pid 3757] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3757] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3756] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3756] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3757] <... write resumed>) = 8 [pid 3756] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3757] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3755] <... futex resumed>) = 0 [pid 3755] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3756] <... futex resumed>) = 0 [pid 3755] <... futex resumed>) = 1 [pid 3756] read(5, [pid 3755] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3756] <... read resumed>NULL, 0) = 0 [pid 3756] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3755] <... futex resumed>) = 0 [pid 3756] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3755] exit_group(0 [pid 3756] <... futex resumed>) = ? [pid 3755] <... exit_group resumed>) = ? [pid 3756] +++ exited with 0 +++ [pid 3757] <... futex resumed>) = ? [pid 3757] +++ exited with 0 +++ [pid 3755] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3755, si_uid=0, si_status=0, si_utime=1, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3758 ./strace-static-x86_64: Process 3758 attached [pid 3758] set_robust_list(0x555556e316e0, 24) = 0 [pid 3758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3758] setpgid(0, 0) = 0 [pid 3758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3758] write(3, "1000", 4) = 4 [pid 3758] close(3) = 0 [pid 3758] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3758] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3758] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3758] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3759], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3759 [pid 3758] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3758] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3759 attached [pid 3759] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3759] memfd_create("syzkaller", 0) = 3 [pid 3759] ftruncate(3, 0) = 0 [pid 3759] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3759] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3759] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3759] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3759] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3759] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3758] <... futex resumed>) = 0 [pid 3758] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3758] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3759] <... futex resumed>) = 0 [pid 3759] pipe2([5, 6], 0) = 0 [pid 3759] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3758] <... futex resumed>) = 0 [pid 3759] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3758] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3759] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3758] <... futex resumed>) = 0 [pid 3758] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3759] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3759] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3758] <... futex resumed>) = 0 [pid 3759] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3758] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3759] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3758] <... futex resumed>) = 0 [pid 3759] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3758] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3758] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3758] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3758] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3758] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3758] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3760], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3760 [pid 3758] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3758] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3760 attached [pid 3760] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3760] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3759] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3759] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3759] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3760] <... write resumed>) = 8 [pid 3760] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3758] <... futex resumed>) = 0 [pid 3758] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3759] <... futex resumed>) = 0 [pid 3758] <... futex resumed>) = 1 [pid 3759] read(5, [pid 3758] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3759] <... read resumed>NULL, 0) = 0 [pid 3759] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3758] <... futex resumed>) = 0 [pid 3759] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3758] exit_group(0 [pid 3759] <... futex resumed>) = ? [pid 3758] <... exit_group resumed>) = ? [pid 3759] +++ exited with 0 +++ [pid 3760] <... futex resumed>) = ? [pid 3760] +++ exited with 0 +++ [pid 3758] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3758, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3761 ./strace-static-x86_64: Process 3761 attached [pid 3761] set_robust_list(0x555556e316e0, 24) = 0 [pid 3761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3761] setpgid(0, 0) = 0 [pid 3761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3761] write(3, "1000", 4) = 4 [pid 3761] close(3) = 0 [pid 3761] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3761] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3761] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3761] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3762], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3762 [pid 3761] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3761] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3762 attached [pid 3762] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3762] memfd_create("syzkaller", 0) = 3 [pid 3762] ftruncate(3, 0) = 0 [pid 3762] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3762] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3762] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3762] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3762] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3761] <... futex resumed>) = 0 [pid 3761] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3761] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3762] <... futex resumed>) = 1 [pid 3762] pipe2([5, 6], 0) = 0 [pid 3762] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3761] <... futex resumed>) = 0 [pid 3761] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3761] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3762] <... futex resumed>) = 1 [pid 3762] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3762] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3761] <... futex resumed>) = 0 [pid 3761] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3761] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3762] <... futex resumed>) = 1 [pid 3762] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3761] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3761] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3761] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3761] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3761] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3761] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3761] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3761] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3763], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3763 [pid 3761] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3761] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3763 attached [pid 3763] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3763] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3762] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3762] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3762] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3763] <... write resumed>) = 8 [pid 3763] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3761] <... futex resumed>) = 0 [pid 3761] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3762] <... futex resumed>) = 0 [pid 3761] <... futex resumed>) = 1 [pid 3762] read(5, [pid 3761] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3762] <... read resumed>NULL, 0) = 0 [pid 3762] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3761] <... futex resumed>) = 0 [pid 3762] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3761] exit_group(0 [pid 3762] <... futex resumed>) = ? [pid 3761] <... exit_group resumed>) = ? [pid 3762] +++ exited with 0 +++ [pid 3763] <... futex resumed>) = ? [pid 3763] +++ exited with 0 +++ [pid 3761] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3761, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3764 ./strace-static-x86_64: Process 3764 attached [pid 3764] set_robust_list(0x555556e316e0, 24) = 0 [pid 3764] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3764] setpgid(0, 0) = 0 [pid 3764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3764] write(3, "1000", 4) = 4 [pid 3764] close(3) = 0 [pid 3764] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3764] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3764] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3764] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3765], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3765 [pid 3764] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3764] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3765 attached [pid 3765] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3765] memfd_create("syzkaller", 0) = 3 [pid 3765] ftruncate(3, 0) = 0 [pid 3765] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3765] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3765] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3765] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3765] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3765] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3764] <... futex resumed>) = 0 [pid 3764] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3764] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3765] <... futex resumed>) = 0 [pid 3765] pipe2([5, 6], 0) = 0 [pid 3765] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3764] <... futex resumed>) = 0 [pid 3764] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3764] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3765] <... futex resumed>) = 1 [pid 3765] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3765] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3764] <... futex resumed>) = 0 [pid 3764] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3764] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3765] <... futex resumed>) = 1 [pid 3765] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3764] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3764] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3764] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3764] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3764] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3764] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3766], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3766 [pid 3764] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3764] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3766 attached [pid 3766] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3766] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3765] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3766] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3765] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3766] <... futex resumed>) = 1 [pid 3765] <... futex resumed>) = 0 [pid 3764] <... futex resumed>) = 0 [pid 3765] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3764] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3765] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3764] <... futex resumed>) = 0 [pid 3766] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3765] read(5, [pid 3764] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3765] <... read resumed>NULL, 0) = 0 [pid 3765] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3764] <... futex resumed>) = 0 [pid 3765] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3764] exit_group(0 [pid 3765] <... futex resumed>) = ? [pid 3764] <... exit_group resumed>) = ? [pid 3765] +++ exited with 0 +++ [pid 3766] <... futex resumed>) = ? [pid 3766] +++ exited with 0 +++ [pid 3764] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3764, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3767 attached , child_tidptr=0x555556e316d0) = 3767 [pid 3767] set_robust_list(0x555556e316e0, 24) = 0 [pid 3767] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3767] setpgid(0, 0) = 0 [pid 3767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3767] write(3, "1000", 4) = 4 [pid 3767] close(3) = 0 [pid 3767] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3767] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3767] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3767] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3768], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3768 [pid 3767] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3767] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3768 attached [pid 3768] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3768] memfd_create("syzkaller", 0) = 3 [pid 3768] ftruncate(3, 0) = 0 [pid 3768] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3768] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3768] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3768] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3768] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3767] <... futex resumed>) = 0 [pid 3767] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3767] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3768] <... futex resumed>) = 1 [pid 3768] pipe2([5, 6], 0) = 0 [pid 3768] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3767] <... futex resumed>) = 0 [pid 3767] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3767] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3768] <... futex resumed>) = 1 [pid 3768] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3768] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3767] <... futex resumed>) = 0 [pid 3767] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3767] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3768] <... futex resumed>) = 1 [pid 3768] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3767] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3767] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3767] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3767] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3767] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3767] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3769], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3769 [pid 3767] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3767] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3769 attached [pid 3769] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3769] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3768] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3768] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3768] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3769] <... write resumed>) = 8 [pid 3769] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3767] <... futex resumed>) = 0 [pid 3767] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3768] <... futex resumed>) = 0 [pid 3767] <... futex resumed>) = 1 [pid 3768] read(5, [pid 3767] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3768] <... read resumed>NULL, 0) = 0 [pid 3768] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3767] <... futex resumed>) = 0 [pid 3768] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3767] exit_group(0 [pid 3768] <... futex resumed>) = ? [pid 3767] <... exit_group resumed>) = ? [pid 3768] +++ exited with 0 +++ [pid 3769] <... futex resumed>) = ? [pid 3769] +++ exited with 0 +++ [pid 3767] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3767, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3770 ./strace-static-x86_64: Process 3770 attached [pid 3770] set_robust_list(0x555556e316e0, 24) = 0 [pid 3770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3770] setpgid(0, 0) = 0 [pid 3770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3770] write(3, "1000", 4) = 4 [pid 3770] close(3) = 0 [pid 3770] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3770] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3770] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3770] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3771], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3771 [pid 3770] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3770] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3771 attached [pid 3771] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3771] memfd_create("syzkaller", 0) = 3 [pid 3771] ftruncate(3, 0) = 0 [pid 3771] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3771] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3771] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3771] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3771] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3770] <... futex resumed>) = 0 [pid 3770] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3771] <... futex resumed>) = 1 [pid 3770] <... futex resumed>) = 0 [pid 3770] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3771] pipe2([5, 6], 0) = 0 [pid 3771] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3770] <... futex resumed>) = 0 [pid 3770] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3770] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3771] <... futex resumed>) = 1 [pid 3771] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3771] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3770] <... futex resumed>) = 0 [pid 3770] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3770] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3771] <... futex resumed>) = 1 [pid 3771] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3770] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3770] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3770] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3770] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3770] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3770] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3770] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3772], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3772 [pid 3770] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3770] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3772 attached [pid 3772] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3772] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3771] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3771] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3771] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3772] <... write resumed>) = 8 [pid 3772] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3770] <... futex resumed>) = 0 [pid 3770] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3771] <... futex resumed>) = 0 [pid 3770] <... futex resumed>) = 1 [pid 3771] read(5, [pid 3770] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3771] <... read resumed>NULL, 0) = 0 [pid 3771] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3770] <... futex resumed>) = 0 [pid 3771] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3770] exit_group(0 [pid 3771] <... futex resumed>) = ? [pid 3770] <... exit_group resumed>) = ? [pid 3771] +++ exited with 0 +++ [pid 3772] <... futex resumed>) = ? [pid 3772] +++ exited with 0 +++ [pid 3770] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3770, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3773 ./strace-static-x86_64: Process 3773 attached [pid 3773] set_robust_list(0x555556e316e0, 24) = 0 [pid 3773] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3773] setpgid(0, 0) = 0 [pid 3773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3773] write(3, "1000", 4) = 4 [pid 3773] close(3) = 0 [pid 3773] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3773] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3773] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3773] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3774], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3774 [pid 3773] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3773] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3774 attached [pid 3774] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3774] memfd_create("syzkaller", 0) = 3 [pid 3774] ftruncate(3, 0) = 0 [pid 3774] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3774] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3774] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3774] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3774] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3773] <... futex resumed>) = 0 [pid 3773] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3773] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3774] <... futex resumed>) = 1 [pid 3774] pipe2([5, 6], 0) = 0 [pid 3774] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3773] <... futex resumed>) = 0 [pid 3774] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 3773] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3774] <... write resumed>) = 64568 [pid 3773] <... futex resumed>) = 0 [pid 3774] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3773] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3773] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3774] <... futex resumed>) = 0 [pid 3773] <... futex resumed>) = 0 [pid 3773] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3774] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3773] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3773] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3773] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3773] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3773] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3775], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3775 [pid 3773] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 3775 attached [pid 3773] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3775] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3775] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3775] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3774] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3775] <... futex resumed>) = 1 [pid 3774] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3773] <... futex resumed>) = 0 [pid 3774] <... futex resumed>) = 0 [pid 3773] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3774] read(5, [pid 3773] <... futex resumed>) = 0 [pid 3774] <... read resumed>NULL, 0) = 0 [pid 3773] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3774] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3773] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3774] <... futex resumed>) = 0 [pid 3774] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3773] exit_group(0 [pid 3774] <... futex resumed>) = ? [pid 3773] <... exit_group resumed>) = ? [pid 3775] +++ exited with 0 +++ [pid 3774] +++ exited with 0 +++ [pid 3773] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3773, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3776 ./strace-static-x86_64: Process 3776 attached [pid 3776] set_robust_list(0x555556e316e0, 24) = 0 [pid 3776] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3776] setpgid(0, 0) = 0 [pid 3776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3776] write(3, "1000", 4) = 4 [pid 3776] close(3) = 0 [pid 3776] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3776] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3776] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3776] clone(child_stack=0x7fbc2b61e2f0, 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 3777 attached , parent_tid=[3777], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3777 [pid 3776] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3776] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3777] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3777] memfd_create("syzkaller", 0) = 3 [pid 3777] ftruncate(3, 0) = 0 [pid 3777] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3777] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3777] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3777] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3777] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3777] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3776] <... futex resumed>) = 0 [pid 3776] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3776] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3777] <... futex resumed>) = 0 [pid 3777] pipe2([5, 6], 0) = 0 [pid 3777] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3776] <... futex resumed>) = 0 [pid 3776] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3776] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3777] <... futex resumed>) = 1 [pid 3777] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3777] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3776] <... futex resumed>) = 0 [pid 3776] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3776] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3777] <... futex resumed>) = 1 [pid 3777] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3776] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3776] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3776] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3776] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3776] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3776] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3778], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3778 [pid 3776] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3776] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3778 attached [pid 3778] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3778] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3777] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3777] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3777] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3778] <... write resumed>) = 8 [pid 3778] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3776] <... futex resumed>) = 0 [pid 3776] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3777] <... futex resumed>) = 0 [pid 3776] <... futex resumed>) = 1 [pid 3777] read(5, [pid 3776] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3777] <... read resumed>NULL, 0) = 0 [pid 3777] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3776] <... futex resumed>) = 0 [pid 3777] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3776] exit_group(0 [pid 3777] <... futex resumed>) = ? [pid 3776] <... exit_group resumed>) = ? [pid 3777] +++ exited with 0 +++ [pid 3778] <... futex resumed>) = ? [pid 3778] +++ exited with 0 +++ [pid 3776] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3776, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3779 ./strace-static-x86_64: Process 3779 attached [pid 3779] set_robust_list(0x555556e316e0, 24) = 0 [pid 3779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3779] setpgid(0, 0) = 0 [pid 3779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3779] write(3, "1000", 4) = 4 [pid 3779] close(3) = 0 [pid 3779] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3779] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3779] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3779] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3780], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3780 [pid 3779] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3779] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3780 attached [pid 3780] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3780] memfd_create("syzkaller", 0) = 3 [pid 3780] ftruncate(3, 0) = 0 [pid 3780] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3780] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3780] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3780] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3780] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3779] <... futex resumed>) = 0 [pid 3779] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3779] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3780] <... futex resumed>) = 1 [pid 3780] pipe2([5, 6], 0) = 0 [pid 3780] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3779] <... futex resumed>) = 0 [pid 3779] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3779] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3780] <... futex resumed>) = 1 [pid 3780] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3780] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3779] <... futex resumed>) = 0 [pid 3779] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3779] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3780] <... futex resumed>) = 1 [pid 3780] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3779] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3779] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3779] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3779] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3779] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3781], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3781 [pid 3779] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3779] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3781 attached [pid 3781] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3781] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3780] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3780] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3780] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3781] <... write resumed>) = 8 [pid 3781] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3779] <... futex resumed>) = 0 [pid 3779] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3780] <... futex resumed>) = 0 [pid 3779] <... futex resumed>) = 1 [pid 3780] read(5, [pid 3779] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3780] <... read resumed>NULL, 0) = 0 [pid 3780] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3779] <... futex resumed>) = 0 [pid 3780] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3779] exit_group(0 [pid 3780] <... futex resumed>) = ? [pid 3779] <... exit_group resumed>) = ? [pid 3780] +++ exited with 0 +++ [pid 3781] <... futex resumed>) = ? [pid 3781] +++ exited with 0 +++ [pid 3779] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3779, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3782 ./strace-static-x86_64: Process 3782 attached [pid 3782] set_robust_list(0x555556e316e0, 24) = 0 [pid 3782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3782] setpgid(0, 0) = 0 [pid 3782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3782] write(3, "1000", 4) = 4 [pid 3782] close(3) = 0 [pid 3782] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3782] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3782] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3782] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3783], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3783 [pid 3782] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3782] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3783 attached [pid 3783] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3783] memfd_create("syzkaller", 0) = 3 [pid 3783] ftruncate(3, 0) = 0 [pid 3783] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3783] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3783] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3783] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3783] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3782] <... futex resumed>) = 0 [pid 3782] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3782] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3783] <... futex resumed>) = 1 [pid 3783] pipe2([5, 6], 0) = 0 [pid 3783] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3782] <... futex resumed>) = 0 [pid 3782] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3782] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3783] <... futex resumed>) = 1 [pid 3783] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3783] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3782] <... futex resumed>) = 0 [pid 3782] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3783] <... futex resumed>) = 1 [pid 3782] <... futex resumed>) = 0 [pid 3782] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3783] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3782] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3782] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3782] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3782] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3782] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3782] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3782] clone(child_stack=0x7fbc2b5fd2f0, 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 3784 attached , parent_tid=[3784], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3784 [pid 3784] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3782] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3782] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3784] <... set_robust_list resumed>) = 0 [pid 3784] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3784] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3783] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3783] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3783] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3784] <... futex resumed>) = 1 [pid 3782] <... futex resumed>) = 0 [pid 3784] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3782] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3783] <... futex resumed>) = 0 [pid 3782] <... futex resumed>) = 1 [pid 3783] read(5, [pid 3782] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3783] <... read resumed>NULL, 0) = 0 [pid 3783] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3782] <... futex resumed>) = 0 [pid 3783] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3782] exit_group(0 [pid 3783] <... futex resumed>) = ? [pid 3782] <... exit_group resumed>) = ? [pid 3784] <... futex resumed>) = ? [pid 3783] +++ exited with 0 +++ [pid 3784] +++ exited with 0 +++ [pid 3782] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3782, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3785 ./strace-static-x86_64: Process 3785 attached [pid 3785] set_robust_list(0x555556e316e0, 24) = 0 [pid 3785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3785] setpgid(0, 0) = 0 [pid 3785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3785] write(3, "1000", 4) = 4 [pid 3785] close(3) = 0 [pid 3785] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3785] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3785] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3785] clone(child_stack=0x7fbc2b61e2f0, 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 3786 attached , parent_tid=[3786], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3786 [pid 3785] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3785] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3786] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3786] memfd_create("syzkaller", 0) = 3 [pid 3786] ftruncate(3, 0) = 0 [pid 3786] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3786] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3786] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3786] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3786] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3785] <... futex resumed>) = 0 [pid 3785] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3785] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3786] <... futex resumed>) = 1 [pid 3786] pipe2([5, 6], 0) = 0 [pid 3786] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3785] <... futex resumed>) = 0 [pid 3785] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3785] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3786] <... futex resumed>) = 1 [pid 3786] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3786] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3785] <... futex resumed>) = 0 [pid 3785] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3785] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3786] <... futex resumed>) = 1 [pid 3786] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3785] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3785] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3785] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3785] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3785] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3787], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3787 ./strace-static-x86_64: Process 3787 attached [pid 3785] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3785] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3787] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3787] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3787] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3786] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3787] <... futex resumed>) = 1 [pid 3785] <... futex resumed>) = 0 [pid 3787] read(5, [pid 3785] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3787] <... read resumed>NULL, 0) = 0 [pid 3785] <... futex resumed>) = 0 [pid 3787] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3785] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3787] <... futex resumed>) = 0 [pid 3786] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3785] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3787] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3785] exit_group(0 [pid 3787] <... futex resumed>) = ? [pid 3785] <... exit_group resumed>) = ? [pid 3786] <... futex resumed>) = ? [pid 3787] +++ exited with 0 +++ [pid 3786] +++ exited with 0 +++ [pid 3785] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3785, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3788 ./strace-static-x86_64: Process 3788 attached [pid 3788] set_robust_list(0x555556e316e0, 24) = 0 [pid 3788] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3788] setpgid(0, 0) = 0 [pid 3788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3788] write(3, "1000", 4) = 4 [pid 3788] close(3) = 0 [pid 3788] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3788] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3788] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3788] clone(child_stack=0x7fbc2b61e2f0, 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 3789 attached , parent_tid=[3789], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3789 [pid 3788] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3788] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3789] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3789] memfd_create("syzkaller", 0) = 3 [pid 3789] ftruncate(3, 0) = 0 [pid 3789] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3789] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3789] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3789] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3789] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3789] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3788] <... futex resumed>) = 0 [pid 3788] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3788] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3789] <... futex resumed>) = 0 [pid 3789] pipe2([5, 6], 0) = 0 [pid 3789] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3788] <... futex resumed>) = 0 [pid 3788] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3788] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3789] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3789] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3788] <... futex resumed>) = 0 [pid 3788] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3788] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3789] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3788] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3788] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3788] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3788] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3788] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3788] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3788] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3790], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3790 [pid 3788] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3788] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3790 attached [pid 3790] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3790] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3789] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3789] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3789] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3790] <... write resumed>) = 8 [pid 3790] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3788] <... futex resumed>) = 0 [pid 3788] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3789] <... futex resumed>) = 0 [pid 3788] <... futex resumed>) = 1 [pid 3789] read(5, [pid 3788] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3789] <... read resumed>NULL, 0) = 0 [pid 3789] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3788] <... futex resumed>) = 0 [pid 3789] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3788] exit_group(0 [pid 3789] <... futex resumed>) = ? [pid 3788] <... exit_group resumed>) = ? [pid 3789] +++ exited with 0 +++ [pid 3790] <... futex resumed>) = ? [pid 3790] +++ exited with 0 +++ [pid 3788] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3788, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3791 ./strace-static-x86_64: Process 3791 attached [pid 3791] set_robust_list(0x555556e316e0, 24) = 0 [pid 3791] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3791] setpgid(0, 0) = 0 [pid 3791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3791] write(3, "1000", 4) = 4 [pid 3791] close(3) = 0 [pid 3791] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3791] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3791] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3791] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3792], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3792 [pid 3791] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3791] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3792 attached [pid 3792] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3792] memfd_create("syzkaller", 0) = 3 [pid 3792] ftruncate(3, 0) = 0 [pid 3792] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3792] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3792] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3792] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3792] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3791] <... futex resumed>) = 0 [pid 3791] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3791] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3792] <... futex resumed>) = 1 [pid 3792] pipe2([5, 6], 0) = 0 [pid 3792] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3791] <... futex resumed>) = 0 [pid 3791] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3791] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3792] <... futex resumed>) = 1 [pid 3792] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3792] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3791] <... futex resumed>) = 0 [pid 3791] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3791] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3792] <... futex resumed>) = 1 [pid 3792] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3791] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3791] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3791] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3791] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3791] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3793], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3793 [pid 3791] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3791] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3793 attached [pid 3793] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3793] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3792] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3792] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3792] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3793] <... write resumed>) = 8 [pid 3793] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3791] <... futex resumed>) = 0 [pid 3791] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3792] <... futex resumed>) = 0 [pid 3791] <... futex resumed>) = 1 [pid 3792] read(5, [pid 3791] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3792] <... read resumed>NULL, 0) = 0 [pid 3792] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3791] <... futex resumed>) = 0 [pid 3792] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3791] exit_group(0 [pid 3792] <... futex resumed>) = ? [pid 3791] <... exit_group resumed>) = ? [pid 3792] +++ exited with 0 +++ [pid 3793] <... futex resumed>) = ? [pid 3793] +++ exited with 0 +++ [pid 3791] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3791, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3794 ./strace-static-x86_64: Process 3794 attached [pid 3794] set_robust_list(0x555556e316e0, 24) = 0 [pid 3794] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3794] setpgid(0, 0) = 0 [pid 3794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3794] write(3, "1000", 4) = 4 [pid 3794] close(3) = 0 [pid 3794] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3794] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3794] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3794] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3795], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3795 [pid 3794] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 3795 attached [pid 3794] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3795] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3795] memfd_create("syzkaller", 0) = 3 [pid 3795] ftruncate(3, 0) = 0 [pid 3795] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3795] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3795] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3795] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3795] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3795] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3794] <... futex resumed>) = 0 [pid 3794] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3795] <... futex resumed>) = 0 [pid 3795] pipe2([5, 6], 0) = 0 [pid 3794] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3795] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3794] <... futex resumed>) = 0 [pid 3794] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3794] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3795] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3795] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3794] <... futex resumed>) = 0 [pid 3794] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3794] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3795] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3794] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3794] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3794] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3794] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3794] clone(child_stack=0x7fbc2b5fd2f0, 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 3796 attached [pid 3796] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3794] <... clone resumed>, parent_tid=[3796], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3796 [pid 3796] <... set_robust_list resumed>) = 0 [pid 3794] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3796] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3794] <... futex resumed>) = 0 [pid 3796] <... write resumed>) = 8 [pid 3795] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3794] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3796] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3795] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3794] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3796] <... futex resumed>) = 0 [pid 3795] <... futex resumed>) = 0 [pid 3794] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3796] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3795] read(5, [pid 3794] <... futex resumed>) = 0 [pid 3795] <... read resumed>NULL, 0) = 0 [pid 3794] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3795] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3794] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3795] <... futex resumed>) = 0 [pid 3794] exit_group(0 [pid 3796] <... futex resumed>) = ? [pid 3794] <... exit_group resumed>) = ? [pid 3796] +++ exited with 0 +++ [pid 3795] +++ exited with 0 +++ [pid 3794] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3794, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3797 attached , child_tidptr=0x555556e316d0) = 3797 [pid 3797] set_robust_list(0x555556e316e0, 24) = 0 [pid 3797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3797] setpgid(0, 0) = 0 [pid 3797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3797] write(3, "1000", 4) = 4 [pid 3797] close(3) = 0 [pid 3797] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3797] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3797] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3797] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3798], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3798 [pid 3797] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3797] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3798 attached [pid 3798] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3798] memfd_create("syzkaller", 0) = 3 [pid 3798] ftruncate(3, 0) = 0 [pid 3798] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3798] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3798] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3798] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3798] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3797] <... futex resumed>) = 0 [pid 3797] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3797] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3798] <... futex resumed>) = 1 [pid 3798] pipe2([5, 6], 0) = 0 [pid 3798] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3797] <... futex resumed>) = 0 [pid 3797] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3797] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3798] <... futex resumed>) = 1 [pid 3798] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3798] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3797] <... futex resumed>) = 0 [pid 3797] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3797] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3798] <... futex resumed>) = 1 [pid 3798] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3797] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3797] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3797] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3797] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3797] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3799], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3799 [pid 3797] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3797] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3799 attached [pid 3799] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3799] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3798] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3798] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3798] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3799] <... write resumed>) = 8 [pid 3799] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3797] <... futex resumed>) = 0 [pid 3797] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3798] <... futex resumed>) = 0 [pid 3797] <... futex resumed>) = 1 [pid 3798] read(5, [pid 3797] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3798] <... read resumed>NULL, 0) = 0 [pid 3798] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3797] <... futex resumed>) = 0 [pid 3798] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3797] exit_group(0 [pid 3798] <... futex resumed>) = ? [pid 3797] <... exit_group resumed>) = ? [pid 3798] +++ exited with 0 +++ [pid 3799] <... futex resumed>) = ? [pid 3799] +++ exited with 0 +++ [pid 3797] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3797, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3800 ./strace-static-x86_64: Process 3800 attached [pid 3800] set_robust_list(0x555556e316e0, 24) = 0 [pid 3800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3800] setpgid(0, 0) = 0 [pid 3800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3800] write(3, "1000", 4) = 4 [pid 3800] close(3) = 0 [pid 3800] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3800] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3800] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3800] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3801], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3801 [pid 3800] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3800] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3801 attached [pid 3801] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3801] memfd_create("syzkaller", 0) = 3 [pid 3801] ftruncate(3, 0) = 0 [pid 3801] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3801] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3801] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3801] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3801] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3800] <... futex resumed>) = 0 [pid 3800] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3800] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3801] <... futex resumed>) = 1 [pid 3801] pipe2([5, 6], 0) = 0 [pid 3801] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3800] <... futex resumed>) = 0 [pid 3800] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3800] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3801] <... futex resumed>) = 1 [pid 3801] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3801] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3800] <... futex resumed>) = 0 [pid 3800] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3800] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3801] <... futex resumed>) = 1 [pid 3801] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3800] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3800] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3800] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3800] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3800] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3802], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3802 [pid 3800] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3800] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3802 attached [pid 3802] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3802] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3802] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3800] <... futex resumed>) = 0 [pid 3800] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3800] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3802] <... futex resumed>) = 1 [pid 3802] read(5, NULL, 0) = 0 [pid 3802] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3800] <... futex resumed>) = 0 [pid 3802] <... futex resumed>) = 1 [pid 3802] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3801] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3801] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3801] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3800] exit_group(0 [pid 3801] <... futex resumed>) = ? [pid 3800] <... exit_group resumed>) = ? [pid 3802] <... futex resumed>) = ? [pid 3801] +++ exited with 0 +++ [pid 3802] +++ exited with 0 +++ [pid 3800] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3800, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3803 ./strace-static-x86_64: Process 3803 attached [pid 3803] set_robust_list(0x555556e316e0, 24) = 0 [pid 3803] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3803] setpgid(0, 0) = 0 [pid 3803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3803] write(3, "1000", 4) = 4 [pid 3803] close(3) = 0 [pid 3803] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3803] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3803] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3803] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3804], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3804 [pid 3803] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3803] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3804 attached [pid 3804] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3804] memfd_create("syzkaller", 0) = 3 [pid 3804] ftruncate(3, 0) = 0 [pid 3804] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3804] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3804] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3804] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3804] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3803] <... futex resumed>) = 0 [pid 3803] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3803] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3804] <... futex resumed>) = 1 [pid 3804] pipe2([5, 6], 0) = 0 [pid 3804] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3803] <... futex resumed>) = 0 [pid 3803] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3803] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3804] <... futex resumed>) = 1 [pid 3804] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3804] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3803] <... futex resumed>) = 0 [pid 3804] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3803] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3803] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3804] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3804] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3803] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3803] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3803] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3803] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3803] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3803] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3805], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3805 [pid 3803] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3803] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3805 attached [pid 3805] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3805] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3805] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3803] <... futex resumed>) = 0 [pid 3803] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3803] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3805] <... futex resumed>) = 1 [pid 3805] read(5, NULL, 0) = 0 [pid 3805] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3803] <... futex resumed>) = 0 [pid 3804] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3805] <... futex resumed>) = 1 [pid 3804] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3805] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3804] <... futex resumed>) = 0 [pid 3804] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3803] exit_group(0) = ? [pid 3804] <... futex resumed>) = ? [pid 3804] +++ exited with 0 +++ [pid 3805] <... futex resumed>) = ? [pid 3805] +++ exited with 0 +++ [pid 3803] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3803, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3806 ./strace-static-x86_64: Process 3806 attached [pid 3806] set_robust_list(0x555556e316e0, 24) = 0 [pid 3806] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3806] setpgid(0, 0) = 0 [pid 3806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3806] write(3, "1000", 4) = 4 [pid 3806] close(3) = 0 [pid 3806] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3806] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3806] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3806] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3807], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3807 [pid 3806] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3806] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3807 attached [pid 3807] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3807] memfd_create("syzkaller", 0) = 3 [pid 3807] ftruncate(3, 0) = 0 [pid 3807] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3807] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3807] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3807] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3807] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3806] <... futex resumed>) = 0 [pid 3807] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3806] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3807] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3806] <... futex resumed>) = 0 [pid 3806] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3807] pipe2([5, 6], 0) = 0 [pid 3807] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3807] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3806] <... futex resumed>) = 0 [pid 3806] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3806] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3807] <... futex resumed>) = 0 [pid 3807] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3807] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3806] <... futex resumed>) = 0 [pid 3806] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3806] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3807] <... futex resumed>) = 1 [pid 3807] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3806] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3806] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3806] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3806] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3806] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3808], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3808 [pid 3806] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3806] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3808 attached [pid 3808] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3808] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3807] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3807] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3807] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3808] <... write resumed>) = 8 [pid 3808] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3806] <... futex resumed>) = 0 [pid 3806] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3807] <... futex resumed>) = 0 [pid 3806] <... futex resumed>) = 1 [pid 3807] read(5, [pid 3806] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3807] <... read resumed>NULL, 0) = 0 [pid 3807] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3806] <... futex resumed>) = 0 [pid 3807] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3806] exit_group(0 [pid 3807] <... futex resumed>) = ? [pid 3806] <... exit_group resumed>) = ? [pid 3807] +++ exited with 0 +++ [pid 3808] <... futex resumed>) = ? [pid 3808] +++ exited with 0 +++ [pid 3806] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3806, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3809 ./strace-static-x86_64: Process 3809 attached [pid 3809] set_robust_list(0x555556e316e0, 24) = 0 [pid 3809] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3809] setpgid(0, 0) = 0 [pid 3809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3809] write(3, "1000", 4) = 4 [pid 3809] close(3) = 0 [pid 3809] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3809] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3809] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3809] clone(child_stack=0x7fbc2b61e2f0, 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 3810 attached [pid 3810] set_robust_list(0x7fbc2b61e9e0, 24 [pid 3809] <... clone resumed>, parent_tid=[3810], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3810 [pid 3810] <... set_robust_list resumed>) = 0 [pid 3809] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3809] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3810] memfd_create("syzkaller", 0) = 3 [pid 3810] ftruncate(3, 0) = 0 [pid 3810] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3810] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3810] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3810] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3810] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3809] <... futex resumed>) = 0 [pid 3809] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3810] pipe2( [pid 3809] <... futex resumed>) = 0 [pid 3809] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3810] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3810] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3809] <... futex resumed>) = 0 [pid 3810] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3809] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3810] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3809] <... futex resumed>) = 0 [pid 3809] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3810] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3810] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3809] <... futex resumed>) = 0 [pid 3810] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3809] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3809] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3809] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3809] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3809] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3809] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3811], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3811 [pid 3809] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3809] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3811 attached [pid 3811] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3811] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3811] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3809] <... futex resumed>) = 0 [pid 3810] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3809] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3809] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3811] <... futex resumed>) = 1 [pid 3811] read(5, NULL, 0) = 0 [pid 3811] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3809] <... futex resumed>) = 0 [pid 3811] <... futex resumed>) = 1 [pid 3811] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3810] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3810] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3809] exit_group(0 [pid 3811] <... futex resumed>) = ? [pid 3810] <... futex resumed>) = ? [pid 3809] <... exit_group resumed>) = ? [pid 3810] +++ exited with 0 +++ [pid 3811] +++ exited with 0 +++ [pid 3809] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3809, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3812 ./strace-static-x86_64: Process 3812 attached [pid 3812] set_robust_list(0x555556e316e0, 24) = 0 [pid 3812] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3812] setpgid(0, 0) = 0 [pid 3812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3812] write(3, "1000", 4) = 4 [pid 3812] close(3) = 0 [pid 3812] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3812] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3812] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3812] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3813], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3813 [pid 3812] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3812] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3813 attached [pid 3813] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3813] memfd_create("syzkaller", 0) = 3 [pid 3813] ftruncate(3, 0) = 0 [pid 3813] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3813] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3813] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3813] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3813] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3812] <... futex resumed>) = 0 [pid 3812] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3812] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3813] <... futex resumed>) = 1 [pid 3813] pipe2([5, 6], 0) = 0 [pid 3813] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3812] <... futex resumed>) = 0 [pid 3812] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3812] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3813] <... futex resumed>) = 1 [pid 3813] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3813] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3812] <... futex resumed>) = 0 [pid 3812] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3812] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3813] <... futex resumed>) = 1 [pid 3813] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3812] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3812] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3812] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3812] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3812] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3814], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3814 [pid 3812] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3812] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3814 attached [pid 3814] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3814] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3813] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3813] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3813] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3814] <... write resumed>) = 8 [pid 3814] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3812] <... futex resumed>) = 0 [pid 3812] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3813] <... futex resumed>) = 0 [pid 3812] <... futex resumed>) = 1 [pid 3813] read(5, [pid 3812] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3813] <... read resumed>NULL, 0) = 0 [pid 3813] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3812] <... futex resumed>) = 0 [pid 3813] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3812] exit_group(0 [pid 3813] <... futex resumed>) = ? [pid 3812] <... exit_group resumed>) = ? [pid 3813] +++ exited with 0 +++ [pid 3814] <... futex resumed>) = ? [pid 3814] +++ exited with 0 +++ [pid 3812] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3812, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3815 ./strace-static-x86_64: Process 3815 attached [pid 3815] set_robust_list(0x555556e316e0, 24) = 0 [pid 3815] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3815] setpgid(0, 0) = 0 [pid 3815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3815] write(3, "1000", 4) = 4 [pid 3815] close(3) = 0 [pid 3815] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3815] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3815] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3815] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3816], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3816 [pid 3815] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3815] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3816 attached [pid 3816] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3816] memfd_create("syzkaller", 0) = 3 [pid 3816] ftruncate(3, 0) = 0 [pid 3816] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3816] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3816] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3816] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3816] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3815] <... futex resumed>) = 0 [pid 3816] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3815] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3816] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3815] <... futex resumed>) = 0 [pid 3816] pipe2( [pid 3815] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3816] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3816] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3815] <... futex resumed>) = 0 [pid 3816] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3815] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3816] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3815] <... futex resumed>) = 0 [pid 3816] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 3815] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3816] <... write resumed>) = 64568 [pid 3816] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3815] <... futex resumed>) = 0 [pid 3816] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3815] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3816] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3815] <... futex resumed>) = 0 [pid 3816] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3815] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3815] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3815] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3815] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3815] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3815] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3815] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3815] clone(child_stack=0x7fbc2b5fd2f0, 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 3817 attached , parent_tid=[3817], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3817 [pid 3817] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3815] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3817] <... set_robust_list resumed>) = 0 [pid 3815] <... futex resumed>) = 0 [pid 3815] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3817] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3817] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3816] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3815] <... futex resumed>) = 0 [pid 3816] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3815] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3817] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3816] <... futex resumed>) = 0 [pid 3815] <... futex resumed>) = 0 [pid 3816] read(5, [pid 3815] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3816] <... read resumed>NULL, 0) = 0 [pid 3816] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3815] <... futex resumed>) = 0 [pid 3816] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3815] exit_group(0 [pid 3817] <... futex resumed>) = ? [pid 3816] <... futex resumed>) = ? [pid 3815] <... exit_group resumed>) = ? [pid 3817] +++ exited with 0 +++ [pid 3816] +++ exited with 0 +++ [pid 3815] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3815, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3818 ./strace-static-x86_64: Process 3818 attached [pid 3818] set_robust_list(0x555556e316e0, 24) = 0 [pid 3818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3818] setpgid(0, 0) = 0 [pid 3818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3818] write(3, "1000", 4) = 4 [pid 3818] close(3) = 0 [pid 3818] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3818] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3818] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3818] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3819], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3819 [pid 3818] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3818] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3819 attached [pid 3819] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3819] memfd_create("syzkaller", 0) = 3 [pid 3819] ftruncate(3, 0) = 0 [pid 3819] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3819] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3819] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3819] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3819] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3818] <... futex resumed>) = 0 [pid 3818] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3818] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3819] <... futex resumed>) = 1 [pid 3819] pipe2([5, 6], 0) = 0 [pid 3819] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3818] <... futex resumed>) = 0 [pid 3818] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3818] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3819] <... futex resumed>) = 1 [pid 3819] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3819] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3818] <... futex resumed>) = 0 [pid 3818] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3818] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3819] <... futex resumed>) = 1 [pid 3819] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3818] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3818] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3818] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3818] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3818] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3818] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3818] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3818] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3820], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3820 [pid 3818] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3818] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3820 attached [pid 3820] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3820] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3819] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3820] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3819] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3820] <... futex resumed>) = 1 [pid 3819] <... futex resumed>) = 0 [pid 3818] <... futex resumed>) = 0 [pid 3820] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3819] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3818] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3819] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3818] <... futex resumed>) = 0 [pid 3819] read(5, [pid 3818] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3819] <... read resumed>NULL, 0) = 0 [pid 3819] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3818] <... futex resumed>) = 0 [pid 3819] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3818] exit_group(0 [pid 3820] <... futex resumed>) = ? [pid 3819] <... futex resumed>) = ? [pid 3818] <... exit_group resumed>) = ? [pid 3820] +++ exited with 0 +++ [pid 3819] +++ exited with 0 +++ [pid 3818] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3818, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3821 ./strace-static-x86_64: Process 3821 attached [pid 3821] set_robust_list(0x555556e316e0, 24) = 0 [pid 3821] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3821] setpgid(0, 0) = 0 [pid 3821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3821] write(3, "1000", 4) = 4 [pid 3821] close(3) = 0 [pid 3821] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3821] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3821] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3821] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3822], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3822 [pid 3821] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3821] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3822 attached [pid 3822] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3822] memfd_create("syzkaller", 0) = 3 [pid 3822] ftruncate(3, 0) = 0 [pid 3822] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3822] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3822] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3822] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3822] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3821] <... futex resumed>) = 0 [pid 3821] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3821] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3822] <... futex resumed>) = 1 [pid 3822] pipe2([5, 6], 0) = 0 [pid 3822] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3821] <... futex resumed>) = 0 [pid 3821] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3821] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3822] <... futex resumed>) = 1 [pid 3822] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3822] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3821] <... futex resumed>) = 0 [pid 3821] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3821] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3822] <... futex resumed>) = 1 [pid 3822] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3821] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3821] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3821] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3821] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3821] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3823], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3823 [pid 3821] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3821] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3823 attached [pid 3823] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3823] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3822] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3822] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3822] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3823] <... write resumed>) = 8 [pid 3823] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3821] <... futex resumed>) = 0 [pid 3821] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3822] <... futex resumed>) = 0 [pid 3821] <... futex resumed>) = 1 [pid 3822] read(5, [pid 3821] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3822] <... read resumed>NULL, 0) = 0 [pid 3822] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3821] <... futex resumed>) = 0 [pid 3822] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3821] exit_group(0 [pid 3822] <... futex resumed>) = ? [pid 3821] <... exit_group resumed>) = ? [pid 3822] +++ exited with 0 +++ [pid 3823] <... futex resumed>) = ? [pid 3823] +++ exited with 0 +++ [pid 3821] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3821, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3824 ./strace-static-x86_64: Process 3824 attached [pid 3824] set_robust_list(0x555556e316e0, 24) = 0 [pid 3824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3824] setpgid(0, 0) = 0 [pid 3824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3824] write(3, "1000", 4) = 4 [pid 3824] close(3) = 0 [pid 3824] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3824] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3824] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3824] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3825], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3825 [pid 3824] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3824] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3825 attached [pid 3825] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3825] memfd_create("syzkaller", 0) = 3 [pid 3825] ftruncate(3, 0) = 0 [pid 3825] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3825] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3825] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3825] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3825] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3824] <... futex resumed>) = 0 [pid 3824] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3824] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3825] <... futex resumed>) = 1 [pid 3825] pipe2([5, 6], 0) = 0 [pid 3825] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3824] <... futex resumed>) = 0 [pid 3824] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3824] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3825] <... futex resumed>) = 1 [pid 3825] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3825] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3824] <... futex resumed>) = 0 [pid 3824] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3824] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3825] <... futex resumed>) = 1 [pid 3825] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3824] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3824] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3824] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3824] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3824] clone(child_stack=0x7fbc2b5fd2f0, 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 3826 attached , parent_tid=[3826], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3826 [pid 3824] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3824] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3826] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3826] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3825] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3825] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3825] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3826] <... write resumed>) = 8 [pid 3826] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3826] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3824] <... futex resumed>) = 0 [pid 3824] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3824] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3825] <... futex resumed>) = 0 [pid 3825] read(5, NULL, 0) = 0 [pid 3825] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3824] <... futex resumed>) = 0 [pid 3825] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3824] exit_group(0 [pid 3825] <... futex resumed>) = ? [pid 3824] <... exit_group resumed>) = ? [pid 3825] +++ exited with 0 +++ [pid 3826] <... futex resumed>) = ? [pid 3826] +++ exited with 0 +++ [pid 3824] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3824, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3827 ./strace-static-x86_64: Process 3827 attached [pid 3827] set_robust_list(0x555556e316e0, 24) = 0 [pid 3827] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3827] setpgid(0, 0) = 0 [pid 3827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3827] write(3, "1000", 4) = 4 [pid 3827] close(3) = 0 [pid 3827] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3827] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3827] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3827] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3828], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3828 [pid 3827] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3827] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3828 attached [pid 3828] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3828] memfd_create("syzkaller", 0) = 3 [pid 3828] ftruncate(3, 0) = 0 [pid 3828] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3828] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3828] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3828] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3828] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3827] <... futex resumed>) = 0 [pid 3827] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3827] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3828] pipe2([5, 6], 0) = 0 [pid 3828] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3827] <... futex resumed>) = 0 [pid 3827] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3827] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3828] <... futex resumed>) = 1 [pid 3828] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3828] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3827] <... futex resumed>) = 0 [pid 3828] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3827] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3828] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3827] <... futex resumed>) = 0 [pid 3828] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3827] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3827] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3827] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3827] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3827] clone(child_stack=0x7fbc2b5fd2f0, 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 3829 attached , parent_tid=[3829], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3829 [pid 3829] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3827] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3829] <... set_robust_list resumed>) = 0 [pid 3827] <... futex resumed>) = 0 [pid 3829] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3827] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3829] <... write resumed>) = 8 [pid 3828] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3829] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3828] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3829] <... futex resumed>) = 1 [pid 3827] <... futex resumed>) = 0 [pid 3828] <... futex resumed>) = 0 [pid 3829] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3827] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3828] read(5, [pid 3827] <... futex resumed>) = 0 [pid 3828] <... read resumed>NULL, 0) = 0 [pid 3828] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3827] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3828] <... futex resumed>) = 0 [pid 3828] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3827] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3827] exit_group(0 [pid 3828] <... futex resumed>) = ? [pid 3827] <... exit_group resumed>) = ? [pid 3829] <... futex resumed>) = ? [pid 3828] +++ exited with 0 +++ [pid 3829] +++ exited with 0 +++ [pid 3827] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3827, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3830 attached , child_tidptr=0x555556e316d0) = 3830 [pid 3830] set_robust_list(0x555556e316e0, 24) = 0 [pid 3830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3830] setpgid(0, 0) = 0 [pid 3830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3830] write(3, "1000", 4) = 4 [pid 3830] close(3) = 0 [pid 3830] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3830] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3830] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3830] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3831], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3831 [pid 3830] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3830] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3831 attached [pid 3831] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3831] memfd_create("syzkaller", 0) = 3 [pid 3831] ftruncate(3, 0) = 0 [pid 3831] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3831] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3831] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3831] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3831] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3830] <... futex resumed>) = 0 [pid 3830] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3830] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3831] <... futex resumed>) = 1 [pid 3831] pipe2([5, 6], 0) = 0 [pid 3831] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3830] <... futex resumed>) = 0 [pid 3830] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3830] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3831] <... futex resumed>) = 1 [pid 3831] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3831] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3830] <... futex resumed>) = 0 [pid 3830] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3830] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3831] <... futex resumed>) = 1 [pid 3831] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3830] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3830] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3830] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3830] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3830] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3830] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3832], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3832 [pid 3830] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3830] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3832 attached [pid 3832] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3832] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3831] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3832] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3831] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3832] <... futex resumed>) = 1 [pid 3831] <... futex resumed>) = 0 [pid 3830] <... futex resumed>) = 0 [pid 3832] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3831] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3830] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3831] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3830] <... futex resumed>) = 0 [pid 3831] read(5, [pid 3830] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3831] <... read resumed>NULL, 0) = 0 [pid 3831] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3830] <... futex resumed>) = 0 [pid 3831] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3830] exit_group(0 [pid 3832] <... futex resumed>) = ? [pid 3831] <... futex resumed>) = ? [pid 3830] <... exit_group resumed>) = ? [pid 3832] +++ exited with 0 +++ [pid 3831] +++ exited with 0 +++ [pid 3830] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3830, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3833 ./strace-static-x86_64: Process 3833 attached [pid 3833] set_robust_list(0x555556e316e0, 24) = 0 [pid 3833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3833] setpgid(0, 0) = 0 [pid 3833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3833] write(3, "1000", 4) = 4 [pid 3833] close(3) = 0 [pid 3833] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3833] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3833] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3833] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3834], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3834 [pid 3833] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3833] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3834 attached [pid 3834] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3834] memfd_create("syzkaller", 0) = 3 [pid 3834] ftruncate(3, 0) = 0 [pid 3834] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3834] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3834] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3834] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3834] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3833] <... futex resumed>) = 0 [pid 3833] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3833] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3834] <... futex resumed>) = 1 [pid 3834] pipe2([5, 6], 0) = 0 [pid 3834] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3833] <... futex resumed>) = 0 [pid 3833] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3833] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3834] <... futex resumed>) = 1 [pid 3834] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3834] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3833] <... futex resumed>) = 0 [pid 3833] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3833] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3834] <... futex resumed>) = 1 [pid 3834] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3833] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3833] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3833] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3833] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3833] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3833] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3833] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3835], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3835 [pid 3833] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3833] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3835 attached [pid 3835] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3835] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3834] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3834] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3834] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3835] <... write resumed>) = 8 [pid 3835] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3833] <... futex resumed>) = 0 [pid 3833] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3834] <... futex resumed>) = 0 [pid 3833] <... futex resumed>) = 1 [pid 3834] read(5, [pid 3833] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3834] <... read resumed>NULL, 0) = 0 [pid 3834] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3833] <... futex resumed>) = 0 [pid 3834] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3833] exit_group(0 [pid 3834] <... futex resumed>) = ? [pid 3833] <... exit_group resumed>) = ? [pid 3834] +++ exited with 0 +++ [pid 3835] <... futex resumed>) = ? [pid 3835] +++ exited with 0 +++ [pid 3833] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3833, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3836 ./strace-static-x86_64: Process 3836 attached [pid 3836] set_robust_list(0x555556e316e0, 24) = 0 [pid 3836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3836] setpgid(0, 0) = 0 [pid 3836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3836] write(3, "1000", 4) = 4 [pid 3836] close(3) = 0 [pid 3836] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3836] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3836] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3836] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3837], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3837 [pid 3836] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3836] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3837 attached [pid 3837] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3837] memfd_create("syzkaller", 0) = 3 [pid 3837] ftruncate(3, 0) = 0 [pid 3837] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3837] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3837] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3837] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3837] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3836] <... futex resumed>) = 0 [pid 3836] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3836] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3837] <... futex resumed>) = 1 [pid 3837] pipe2([5, 6], 0) = 0 [pid 3837] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3836] <... futex resumed>) = 0 [pid 3836] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3836] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3837] <... futex resumed>) = 1 [pid 3837] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3837] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3836] <... futex resumed>) = 0 [pid 3836] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3836] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3837] <... futex resumed>) = 1 [pid 3837] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3836] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3836] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3836] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3836] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3836] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3836] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3836] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3838], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3838 [pid 3836] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3836] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3838 attached [pid 3838] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3838] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3838] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3836] <... futex resumed>) = 0 [pid 3836] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3836] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3838] <... futex resumed>) = 1 [pid 3838] read(5, NULL, 0) = 0 [pid 3838] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3836] <... futex resumed>) = 0 [pid 3837] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3838] <... futex resumed>) = 1 [pid 3838] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3837] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3837] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3836] exit_group(0 [pid 3838] <... futex resumed>) = ? [pid 3837] <... futex resumed>) = ? [pid 3836] <... exit_group resumed>) = ? [pid 3838] +++ exited with 0 +++ [pid 3837] +++ exited with 0 +++ [pid 3836] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3836, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3839 ./strace-static-x86_64: Process 3839 attached [pid 3839] set_robust_list(0x555556e316e0, 24) = 0 [pid 3839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3839] setpgid(0, 0) = 0 [pid 3839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3839] write(3, "1000", 4) = 4 [pid 3839] close(3) = 0 [pid 3839] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3839] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3839] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3839] clone(child_stack=0x7fbc2b61e2f0, 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 3840 attached [pid 3840] set_robust_list(0x7fbc2b61e9e0, 24 [pid 3839] <... clone resumed>, parent_tid=[3840], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3840 [pid 3840] <... set_robust_list resumed>) = 0 [pid 3839] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3839] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3840] memfd_create("syzkaller", 0) = 3 [pid 3840] ftruncate(3, 0) = 0 [pid 3840] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3840] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3840] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3840] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3840] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3839] <... futex resumed>) = 0 [pid 3839] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3839] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3840] <... futex resumed>) = 1 [pid 3840] pipe2([5, 6], 0) = 0 [pid 3840] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3839] <... futex resumed>) = 0 [pid 3839] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3839] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3840] <... futex resumed>) = 1 [pid 3840] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3840] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3839] <... futex resumed>) = 0 [pid 3839] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3839] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3840] <... futex resumed>) = 1 [pid 3840] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3839] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3839] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3839] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3839] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3839] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3839] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3839] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3841], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3841 [pid 3839] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3839] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3841 attached [pid 3841] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3841] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3840] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3840] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3840] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3841] <... write resumed>) = 8 [pid 3841] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3839] <... futex resumed>) = 0 [pid 3839] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3840] <... futex resumed>) = 0 [pid 3839] <... futex resumed>) = 1 [pid 3840] read(5, [pid 3839] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3840] <... read resumed>NULL, 0) = 0 [pid 3840] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3839] <... futex resumed>) = 0 [pid 3840] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3839] exit_group(0 [pid 3840] <... futex resumed>) = ? [pid 3839] <... exit_group resumed>) = ? [pid 3840] +++ exited with 0 +++ [pid 3841] <... futex resumed>) = ? [pid 3841] +++ exited with 0 +++ [pid 3839] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3839, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3842 ./strace-static-x86_64: Process 3842 attached [pid 3842] set_robust_list(0x555556e316e0, 24) = 0 [pid 3842] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3842] setpgid(0, 0) = 0 [pid 3842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3842] write(3, "1000", 4) = 4 [pid 3842] close(3) = 0 [pid 3842] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3842] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3842] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3842] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3843], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3843 [pid 3842] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3842] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3843 attached [pid 3843] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3843] memfd_create("syzkaller", 0) = 3 [pid 3843] ftruncate(3, 0) = 0 [pid 3843] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3843] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3843] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3843] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3843] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3842] <... futex resumed>) = 0 [pid 3842] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3842] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3843] <... futex resumed>) = 1 [pid 3843] pipe2([5, 6], 0) = 0 [pid 3843] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3842] <... futex resumed>) = 0 [pid 3842] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3842] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3843] <... futex resumed>) = 1 [pid 3843] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3843] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3842] <... futex resumed>) = 0 [pid 3842] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3842] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3843] <... futex resumed>) = 1 [pid 3843] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3842] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3842] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3842] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3842] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3842] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3842] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3842] clone(child_stack=0x7fbc2b5fd2f0, 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 3844 attached , parent_tid=[3844], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3844 [pid 3844] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3842] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3844] <... set_robust_list resumed>) = 0 [pid 3842] <... futex resumed>) = 0 [pid 3844] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3842] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3844] <... write resumed>) = 8 [pid 3844] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3844] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3843] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3842] <... futex resumed>) = 0 [pid 3843] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3842] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3843] <... futex resumed>) = 0 [pid 3842] <... futex resumed>) = 0 [pid 3843] read(5, [pid 3842] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3843] <... read resumed>NULL, 0) = 0 [pid 3843] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3842] <... futex resumed>) = 0 [pid 3843] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3842] exit_group(0 [pid 3843] <... futex resumed>) = ? [pid 3842] <... exit_group resumed>) = ? [pid 3844] <... futex resumed>) = ? [pid 3843] +++ exited with 0 +++ [pid 3844] +++ exited with 0 +++ [pid 3842] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3842, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3845 ./strace-static-x86_64: Process 3845 attached [pid 3845] set_robust_list(0x555556e316e0, 24) = 0 [pid 3845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3845] setpgid(0, 0) = 0 [pid 3845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3845] write(3, "1000", 4) = 4 [pid 3845] close(3) = 0 [pid 3845] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3845] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3845] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3845] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3846], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3846 [pid 3845] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3845] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3846 attached [pid 3846] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3846] memfd_create("syzkaller", 0) = 3 [pid 3846] ftruncate(3, 0) = 0 [pid 3846] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3846] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3846] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3846] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3846] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3845] <... futex resumed>) = 0 [pid 3845] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3845] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3846] <... futex resumed>) = 1 [pid 3846] pipe2([5, 6], 0) = 0 [pid 3846] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3845] <... futex resumed>) = 0 [pid 3845] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3845] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3846] <... futex resumed>) = 1 [pid 3846] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3846] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3845] <... futex resumed>) = 0 [pid 3845] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3845] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3846] <... futex resumed>) = 1 [pid 3846] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3845] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3845] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3845] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3845] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3845] clone(child_stack=0x7fbc2b5fd2f0, 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 3847 attached [pid 3847] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3847] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3845] <... clone resumed>, parent_tid=[3847], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3847 [pid 3845] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3845] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3847] <... futex resumed>) = 0 [pid 3847] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3846] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3846] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3846] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3847] <... write resumed>) = 8 [pid 3847] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3845] <... futex resumed>) = 0 [pid 3847] <... futex resumed>) = 1 [pid 3845] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3847] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3846] <... futex resumed>) = 0 [pid 3845] <... futex resumed>) = 1 [pid 3846] read(5, [pid 3845] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3846] <... read resumed>NULL, 0) = 0 [pid 3846] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3845] <... futex resumed>) = 0 [pid 3846] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3845] exit_group(0 [pid 3847] <... futex resumed>) = ? [pid 3846] <... futex resumed>) = ? [pid 3845] <... exit_group resumed>) = ? [pid 3847] +++ exited with 0 +++ [pid 3846] +++ exited with 0 +++ [pid 3845] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3845, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3848 attached , child_tidptr=0x555556e316d0) = 3848 [pid 3848] set_robust_list(0x555556e316e0, 24) = 0 [pid 3848] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3848] setpgid(0, 0) = 0 [pid 3848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3848] write(3, "1000", 4) = 4 [pid 3848] close(3) = 0 [pid 3848] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3848] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3848] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3848] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3849], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3849 [pid 3848] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3848] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3849 attached [pid 3849] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3849] memfd_create("syzkaller", 0) = 3 [pid 3849] ftruncate(3, 0) = 0 [pid 3849] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3849] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3849] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3849] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3849] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3848] <... futex resumed>) = 0 [pid 3848] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3848] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3849] <... futex resumed>) = 1 [pid 3849] pipe2([5, 6], 0) = 0 [pid 3849] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3848] <... futex resumed>) = 0 [pid 3848] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3848] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3849] <... futex resumed>) = 1 [pid 3849] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3849] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3848] <... futex resumed>) = 0 [pid 3848] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3848] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3849] <... futex resumed>) = 1 [pid 3849] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3848] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3848] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3848] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3848] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3848] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3848] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3848] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3850], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3850 [pid 3848] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3848] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3850 attached [pid 3850] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3850] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3850] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3848] <... futex resumed>) = 0 [pid 3849] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3848] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3849] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3848] <... futex resumed>) = 0 [pid 3849] <... futex resumed>) = 0 [pid 3848] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3849] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3850] <... futex resumed>) = 1 [pid 3850] read(5, NULL, 0) = 0 [pid 3850] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3848] <... futex resumed>) = 0 [pid 3848] exit_group(0) = ? [pid 3849] <... futex resumed>) = ? [pid 3850] <... futex resumed>) = ? [pid 3850] +++ exited with 0 +++ [pid 3849] +++ exited with 0 +++ [pid 3848] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3848, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3851 ./strace-static-x86_64: Process 3851 attached [pid 3851] set_robust_list(0x555556e316e0, 24) = 0 [pid 3851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3851] setpgid(0, 0) = 0 [pid 3851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3851] write(3, "1000", 4) = 4 [pid 3851] close(3) = 0 [pid 3851] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3851] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3851] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3851] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3852], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3852 [pid 3851] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3851] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3852 attached [pid 3852] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3852] memfd_create("syzkaller", 0) = 3 [pid 3852] ftruncate(3, 0) = 0 [pid 3852] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3852] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3852] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3852] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3852] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3852] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3851] <... futex resumed>) = 0 [pid 3851] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3851] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3852] <... futex resumed>) = 0 [pid 3852] pipe2([5, 6], 0) = 0 [pid 3852] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3851] <... futex resumed>) = 0 [pid 3851] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3851] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3852] <... futex resumed>) = 1 [pid 3852] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3852] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3851] <... futex resumed>) = 0 [pid 3851] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3851] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3852] <... futex resumed>) = 1 [pid 3852] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3851] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3851] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3851] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3851] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3851] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3851] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3851] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3853], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3853 [pid 3851] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3851] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3853 attached [pid 3853] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3853] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3853] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3851] <... futex resumed>) = 0 [pid 3851] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3851] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3853] <... futex resumed>) = 1 [pid 3853] read(5, NULL, 0) = 0 [pid 3853] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3851] <... futex resumed>) = 0 [pid 3853] <... futex resumed>) = 1 [pid 3853] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3852] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3852] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3852] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3851] exit_group(0) = ? [pid 3853] <... futex resumed>) = ? [pid 3853] +++ exited with 0 +++ [pid 3852] <... futex resumed>) = ? [pid 3852] +++ exited with 0 +++ [pid 3851] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3851, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3854 ./strace-static-x86_64: Process 3854 attached [pid 3854] set_robust_list(0x555556e316e0, 24) = 0 [pid 3854] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3854] setpgid(0, 0) = 0 [pid 3854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3854] write(3, "1000", 4) = 4 [pid 3854] close(3) = 0 [pid 3854] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3854] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3854] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3854] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3855], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3855 [pid 3854] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3854] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3855 attached [pid 3855] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3855] memfd_create("syzkaller", 0) = 3 [pid 3855] ftruncate(3, 0) = 0 [pid 3855] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3855] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3855] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3855] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3855] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3854] <... futex resumed>) = 0 [pid 3855] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3854] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3855] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3854] <... futex resumed>) = 0 [pid 3855] pipe2( [pid 3854] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3855] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3855] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3854] <... futex resumed>) = 0 [pid 3855] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3854] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3855] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3854] <... futex resumed>) = 0 [pid 3855] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 3854] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3855] <... write resumed>) = 64568 [pid 3855] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3854] <... futex resumed>) = 0 [pid 3854] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3854] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3855] <... futex resumed>) = 1 [pid 3855] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3854] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3854] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3854] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3854] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3854] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3854] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3856], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3856 [pid 3854] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3854] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3856 attached [pid 3856] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3856] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3855] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3855] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3855] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3856] <... write resumed>) = 8 [pid 3856] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3854] <... futex resumed>) = 0 [pid 3854] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3855] <... futex resumed>) = 0 [pid 3854] <... futex resumed>) = 1 [pid 3855] read(5, [pid 3854] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3855] <... read resumed>NULL, 0) = 0 [pid 3855] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3854] <... futex resumed>) = 0 [pid 3855] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3854] exit_group(0 [pid 3855] <... futex resumed>) = ? [pid 3854] <... exit_group resumed>) = ? [pid 3855] +++ exited with 0 +++ [pid 3856] <... futex resumed>) = ? [pid 3856] +++ exited with 0 +++ [pid 3854] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3854, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3857 ./strace-static-x86_64: Process 3857 attached [pid 3857] set_robust_list(0x555556e316e0, 24) = 0 [pid 3857] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3857] setpgid(0, 0) = 0 [pid 3857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3857] write(3, "1000", 4) = 4 [pid 3857] close(3) = 0 [pid 3857] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3857] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3857] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3857] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3858], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3858 [pid 3857] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3857] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3858 attached [pid 3858] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3858] memfd_create("syzkaller", 0) = 3 [pid 3858] ftruncate(3, 0) = 0 [pid 3858] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3858] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3858] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3858] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3858] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3857] <... futex resumed>) = 0 [pid 3857] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3857] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3858] <... futex resumed>) = 1 [pid 3858] pipe2([5, 6], 0) = 0 [pid 3858] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3857] <... futex resumed>) = 0 [pid 3857] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3857] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3858] <... futex resumed>) = 1 [pid 3858] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3858] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3857] <... futex resumed>) = 0 [pid 3857] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3857] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3858] <... futex resumed>) = 1 [pid 3858] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3857] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3857] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3857] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3857] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3857] clone(child_stack=0x7fbc2b5fd2f0, 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 3859 attached , parent_tid=[3859], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3859 [pid 3857] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3857] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3859] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3859] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3858] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3859] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3858] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3859] <... futex resumed>) = 1 [pid 3858] <... futex resumed>) = 0 [pid 3859] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3858] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3857] <... futex resumed>) = 0 [pid 3857] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3858] <... futex resumed>) = 0 [pid 3857] <... futex resumed>) = 1 [pid 3858] read(5, [pid 3857] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3858] <... read resumed>NULL, 0) = 0 [pid 3858] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3857] <... futex resumed>) = 0 [pid 3858] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3857] exit_group(0 [pid 3859] <... futex resumed>) = ? [pid 3858] <... futex resumed>) = ? [pid 3857] <... exit_group resumed>) = ? [pid 3859] +++ exited with 0 +++ [pid 3858] +++ exited with 0 +++ [pid 3857] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3857, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3860 ./strace-static-x86_64: Process 3860 attached [pid 3860] set_robust_list(0x555556e316e0, 24) = 0 [pid 3860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3860] setpgid(0, 0) = 0 [pid 3860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3860] write(3, "1000", 4) = 4 [pid 3860] close(3) = 0 [pid 3860] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3860] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3860] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3860] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3861], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3861 [pid 3860] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3860] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3861 attached [pid 3861] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3861] memfd_create("syzkaller", 0) = 3 [pid 3861] ftruncate(3, 0) = 0 [pid 3861] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3861] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3861] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3861] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3861] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3861] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3860] <... futex resumed>) = 0 [pid 3860] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3860] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3861] <... futex resumed>) = 0 [pid 3861] pipe2([5, 6], 0) = 0 [pid 3861] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3860] <... futex resumed>) = 0 [pid 3860] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3860] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3861] <... futex resumed>) = 1 [pid 3861] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3861] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3860] <... futex resumed>) = 0 [pid 3860] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3860] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3861] <... futex resumed>) = 1 [pid 3861] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3860] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3860] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3860] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3860] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3860] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3862], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3862 ./strace-static-x86_64: Process 3862 attached [pid 3860] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3860] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3862] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3862] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3861] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3862] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3861] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3862] <... futex resumed>) = 1 [pid 3861] <... futex resumed>) = 0 [pid 3860] <... futex resumed>) = 0 [pid 3862] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3861] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3860] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3861] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3860] <... futex resumed>) = 0 [pid 3861] read(5, [pid 3860] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3861] <... read resumed>NULL, 0) = 0 [pid 3861] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3860] <... futex resumed>) = 0 [pid 3861] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3860] exit_group(0 [pid 3862] <... futex resumed>) = ? [pid 3861] <... futex resumed>) = ? [pid 3860] <... exit_group resumed>) = ? [pid 3861] +++ exited with 0 +++ [pid 3862] +++ exited with 0 +++ [pid 3860] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3860, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3863 ./strace-static-x86_64: Process 3863 attached [pid 3863] set_robust_list(0x555556e316e0, 24) = 0 [pid 3863] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3863] setpgid(0, 0) = 0 [pid 3863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3863] write(3, "1000", 4) = 4 [pid 3863] close(3) = 0 [pid 3863] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3863] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3863] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3863] clone(child_stack=0x7fbc2b61e2f0, 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 3864 attached , parent_tid=[3864], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3864 [pid 3863] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3863] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3864] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3864] memfd_create("syzkaller", 0) = 3 [pid 3864] ftruncate(3, 0) = 0 [pid 3864] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3864] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3864] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3864] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3864] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3864] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3863] <... futex resumed>) = 0 [pid 3863] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3863] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3864] <... futex resumed>) = 0 [pid 3864] pipe2([5, 6], 0) = 0 [pid 3864] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3863] <... futex resumed>) = 0 [pid 3863] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3863] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3864] <... futex resumed>) = 1 [pid 3864] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3864] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3863] <... futex resumed>) = 0 [pid 3864] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3863] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3863] <... futex resumed>) = 0 [pid 3864] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3863] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3863] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3863] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3863] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3863] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3863] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3865], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3865 ./strace-static-x86_64: Process 3865 attached [pid 3863] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3863] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3865] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3865] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3865] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3863] <... futex resumed>) = 0 [pid 3865] read(5, [pid 3863] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3865] <... read resumed>NULL, 0) = 0 [pid 3863] <... futex resumed>) = 0 [pid 3865] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3863] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3865] <... futex resumed>) = 0 [pid 3863] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3865] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3864] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3864] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3864] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3863] exit_group(0 [pid 3864] <... futex resumed>) = ? [pid 3863] <... exit_group resumed>) = ? [pid 3865] <... futex resumed>) = ? [pid 3864] +++ exited with 0 +++ [pid 3865] +++ exited with 0 +++ [pid 3863] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3863, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3866 ./strace-static-x86_64: Process 3866 attached [pid 3866] set_robust_list(0x555556e316e0, 24) = 0 [pid 3866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3866] setpgid(0, 0) = 0 [pid 3866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3866] write(3, "1000", 4) = 4 [pid 3866] close(3) = 0 [pid 3866] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3866] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3866] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3866] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3867], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3867 [pid 3866] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3866] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3867 attached [pid 3867] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3867] memfd_create("syzkaller", 0) = 3 [pid 3867] ftruncate(3, 0) = 0 [pid 3867] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3867] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3867] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3867] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3867] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3866] <... futex resumed>) = 0 [pid 3866] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3866] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3867] <... futex resumed>) = 1 [pid 3867] pipe2([5, 6], 0) = 0 [pid 3867] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3866] <... futex resumed>) = 0 [pid 3866] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3866] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3867] <... futex resumed>) = 1 [pid 3867] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3867] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3866] <... futex resumed>) = 0 [pid 3866] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3866] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3867] <... futex resumed>) = 1 [pid 3867] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3866] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3866] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3866] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3866] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3866] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3866] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3866] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3868], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3868 [pid 3866] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3866] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3868 attached [pid 3868] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3868] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3867] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3867] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3867] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3868] <... write resumed>) = 8 [pid 3868] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3866] <... futex resumed>) = 0 [pid 3866] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3867] <... futex resumed>) = 0 [pid 3866] <... futex resumed>) = 1 [pid 3867] read(5, [pid 3866] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3867] <... read resumed>NULL, 0) = 0 [pid 3867] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3866] <... futex resumed>) = 0 [pid 3867] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3866] exit_group(0 [pid 3867] <... futex resumed>) = ? [pid 3866] <... exit_group resumed>) = ? [pid 3867] +++ exited with 0 +++ [pid 3868] <... futex resumed>) = ? [pid 3868] +++ exited with 0 +++ [pid 3866] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3866, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3869 ./strace-static-x86_64: Process 3869 attached [pid 3869] set_robust_list(0x555556e316e0, 24) = 0 [pid 3869] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3869] setpgid(0, 0) = 0 [pid 3869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3869] write(3, "1000", 4) = 4 [pid 3869] close(3) = 0 [pid 3869] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3869] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3869] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3869] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3870], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3870 [pid 3869] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3869] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3870 attached [pid 3870] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3870] memfd_create("syzkaller", 0) = 3 [pid 3870] ftruncate(3, 0) = 0 [pid 3870] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3870] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3870] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3870] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3870] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3869] <... futex resumed>) = 0 [pid 3869] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3869] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3870] <... futex resumed>) = 1 [pid 3870] pipe2([5, 6], 0) = 0 [pid 3870] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3869] <... futex resumed>) = 0 [pid 3870] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 3869] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3869] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3870] <... write resumed>) = 64568 [pid 3870] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3869] <... futex resumed>) = 0 [pid 3869] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3869] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3870] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3869] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3869] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3869] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3869] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3869] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3869] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3871], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3871 [pid 3869] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3869] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3871 attached [pid 3871] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3871] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3870] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3870] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3870] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3871] <... write resumed>) = 8 [pid 3871] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3869] <... futex resumed>) = 0 [pid 3869] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3870] <... futex resumed>) = 0 [pid 3869] <... futex resumed>) = 1 [pid 3870] read(5, [pid 3869] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3870] <... read resumed>NULL, 0) = 0 [pid 3870] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3869] <... futex resumed>) = 0 [pid 3870] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3869] exit_group(0 [pid 3870] <... futex resumed>) = ? [pid 3869] <... exit_group resumed>) = ? [pid 3870] +++ exited with 0 +++ [pid 3871] <... futex resumed>) = ? [pid 3871] +++ exited with 0 +++ [pid 3869] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3869, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3872 ./strace-static-x86_64: Process 3872 attached [pid 3872] set_robust_list(0x555556e316e0, 24) = 0 [pid 3872] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3872] setpgid(0, 0) = 0 [pid 3872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3872] write(3, "1000", 4) = 4 [pid 3872] close(3) = 0 [pid 3872] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3872] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3872] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3872] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3873], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3873 [pid 3872] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 3873 attached ) = 0 [pid 3872] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3873] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3873] memfd_create("syzkaller", 0) = 3 [pid 3873] ftruncate(3, 0) = 0 [pid 3873] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3873] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3873] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3873] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3873] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3873] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3872] <... futex resumed>) = 0 [pid 3872] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3872] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3873] <... futex resumed>) = 0 [pid 3873] pipe2([5, 6], 0) = 0 [pid 3873] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3872] <... futex resumed>) = 0 [pid 3872] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3872] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3873] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3873] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3872] <... futex resumed>) = 0 [pid 3872] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3872] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3873] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3872] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3872] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3872] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3872] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3872] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3872] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3874], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3874 [pid 3872] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3872] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3874 attached [pid 3874] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3874] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3873] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3873] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3873] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3874] <... write resumed>) = 8 [pid 3874] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3872] <... futex resumed>) = 0 [pid 3872] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3873] <... futex resumed>) = 0 [pid 3872] <... futex resumed>) = 1 [pid 3873] read(5, [pid 3872] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3873] <... read resumed>NULL, 0) = 0 [pid 3873] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3872] <... futex resumed>) = 0 [pid 3873] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3872] exit_group(0 [pid 3873] <... futex resumed>) = ? [pid 3872] <... exit_group resumed>) = ? [pid 3873] +++ exited with 0 +++ [pid 3874] <... futex resumed>) = ? [pid 3874] +++ exited with 0 +++ [pid 3872] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3872, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3875 ./strace-static-x86_64: Process 3875 attached [pid 3875] set_robust_list(0x555556e316e0, 24) = 0 [pid 3875] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3875] setpgid(0, 0) = 0 [pid 3875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3875] write(3, "1000", 4) = 4 [pid 3875] close(3) = 0 [pid 3875] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3875] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3875] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3875] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3876], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3876 [pid 3875] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3875] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3876 attached [pid 3876] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3876] memfd_create("syzkaller", 0) = 3 [pid 3876] ftruncate(3, 0) = 0 [pid 3876] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3876] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3876] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3876] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3876] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3876] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3875] <... futex resumed>) = 0 [pid 3875] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3875] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3876] <... futex resumed>) = 0 [pid 3876] pipe2([5, 6], 0) = 0 [pid 3876] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3875] <... futex resumed>) = 0 [pid 3875] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3875] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3876] <... futex resumed>) = 1 [pid 3876] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3876] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3875] <... futex resumed>) = 0 [pid 3875] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3875] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3876] <... futex resumed>) = 1 [pid 3876] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3875] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3875] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3875] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3875] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3875] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3875] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3875] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3877], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3877 [pid 3875] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3875] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3877 attached [pid 3877] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3877] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3876] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3876] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3877] <... write resumed>) = 8 [pid 3876] <... futex resumed>) = 0 [pid 3876] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3877] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3875] <... futex resumed>) = 0 [pid 3875] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3876] <... futex resumed>) = 0 [pid 3875] <... futex resumed>) = 1 [pid 3876] read(5, [pid 3875] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3876] <... read resumed>NULL, 0) = 0 [pid 3876] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3875] <... futex resumed>) = 0 [pid 3876] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3875] exit_group(0 [pid 3876] <... futex resumed>) = ? [pid 3875] <... exit_group resumed>) = ? [pid 3876] +++ exited with 0 +++ [pid 3877] <... futex resumed>) = ? [pid 3877] +++ exited with 0 +++ [pid 3875] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3875, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3878 ./strace-static-x86_64: Process 3878 attached [pid 3878] set_robust_list(0x555556e316e0, 24) = 0 [pid 3878] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3878] setpgid(0, 0) = 0 [pid 3878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3878] write(3, "1000", 4) = 4 [pid 3878] close(3) = 0 [pid 3878] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3878] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3878] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3878] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3879], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3879 [pid 3878] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3878] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3879 attached [pid 3879] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3879] memfd_create("syzkaller", 0) = 3 [pid 3879] ftruncate(3, 0) = 0 [pid 3879] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3879] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3879] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3879] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3879] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3878] <... futex resumed>) = 0 [pid 3878] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3878] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3879] <... futex resumed>) = 1 [pid 3879] pipe2([5, 6], 0) = 0 [pid 3879] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3878] <... futex resumed>) = 0 [pid 3878] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3878] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3879] <... futex resumed>) = 1 [pid 3879] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3879] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3878] <... futex resumed>) = 0 [pid 3879] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3878] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3878] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3879] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3879] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3878] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3878] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3878] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3878] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3878] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3878] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3878] clone(child_stack=0x7fbc2b5fd2f0, 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 3880 attached [pid 3880] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3878] <... clone resumed>, parent_tid=[3880], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3880 [pid 3880] <... set_robust_list resumed>) = 0 [pid 3878] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3880] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3878] <... futex resumed>) = 0 [pid 3878] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3880] <... write resumed>) = 8 [pid 3879] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3880] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3879] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3880] <... futex resumed>) = 1 [pid 3879] <... futex resumed>) = 0 [pid 3878] <... futex resumed>) = 0 [pid 3880] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3879] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 3878] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3879] read(5, [pid 3878] <... futex resumed>) = 0 [pid 3879] <... read resumed>NULL, 0) = 0 [pid 3878] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3879] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3878] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3879] <... futex resumed>) = 0 [pid 3878] exit_group(0 [pid 3880] <... futex resumed>) = ? [pid 3878] <... exit_group resumed>) = ? [pid 3879] +++ exited with 0 +++ [pid 3880] +++ exited with 0 +++ [pid 3878] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3878, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3881 ./strace-static-x86_64: Process 3881 attached [pid 3881] set_robust_list(0x555556e316e0, 24) = 0 [pid 3881] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3881] setpgid(0, 0) = 0 [pid 3881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3881] write(3, "1000", 4) = 4 [pid 3881] close(3) = 0 [pid 3881] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3881] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3881] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3881] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3882], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3882 [pid 3881] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3881] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3882 attached [pid 3882] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3882] memfd_create("syzkaller", 0) = 3 [pid 3882] ftruncate(3, 0) = 0 [pid 3882] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3882] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3882] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3882] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3882] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3881] <... futex resumed>) = 0 [pid 3881] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3881] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3882] <... futex resumed>) = 1 [pid 3882] pipe2([5, 6], 0) = 0 [pid 3882] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3881] <... futex resumed>) = 0 [pid 3881] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3881] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3882] <... futex resumed>) = 1 [pid 3882] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3882] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3881] <... futex resumed>) = 0 [pid 3881] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3881] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3882] <... futex resumed>) = 1 [pid 3882] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3881] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3881] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3881] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3881] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3881] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3881] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3881] clone(child_stack=0x7fbc2b5fd2f0, 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 3883 attached , parent_tid=[3883], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3883 [pid 3881] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3881] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3883] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3883] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3883] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3882] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3883] <... futex resumed>) = 1 [pid 3882] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3881] <... futex resumed>) = 0 [pid 3883] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3882] <... futex resumed>) = 0 [pid 3881] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3882] read(5, [pid 3881] <... futex resumed>) = 0 [pid 3882] <... read resumed>NULL, 0) = 0 [pid 3881] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3882] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3881] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3882] <... futex resumed>) = 0 [pid 3881] exit_group(0 [pid 3883] <... futex resumed>) = ? [pid 3881] <... exit_group resumed>) = ? [pid 3883] +++ exited with 0 +++ [pid 3882] +++ exited with 0 +++ [pid 3881] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3881, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3884 attached , child_tidptr=0x555556e316d0) = 3884 [pid 3884] set_robust_list(0x555556e316e0, 24) = 0 [pid 3884] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3884] setpgid(0, 0) = 0 [pid 3884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3884] write(3, "1000", 4) = 4 [pid 3884] close(3) = 0 [pid 3884] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3884] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3884] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3884] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3885], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3885 [pid 3884] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3884] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3885 attached [pid 3885] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3885] memfd_create("syzkaller", 0) = 3 [pid 3885] ftruncate(3, 0) = 0 [pid 3885] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3885] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3885] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3885] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3885] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3884] <... futex resumed>) = 0 [pid 3884] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3884] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3885] <... futex resumed>) = 1 [pid 3885] pipe2([5, 6], 0) = 0 [pid 3885] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3884] <... futex resumed>) = 0 [pid 3884] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3884] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3885] <... futex resumed>) = 1 [pid 3885] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3885] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3884] <... futex resumed>) = 0 [pid 3884] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3884] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3885] <... futex resumed>) = 1 [pid 3885] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3884] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3884] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3884] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3884] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3884] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3884] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3884] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3886], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3886 [pid 3884] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3884] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3886 attached [pid 3886] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3886] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3885] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3885] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3885] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3886] <... write resumed>) = 8 [pid 3886] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3884] <... futex resumed>) = 0 [pid 3884] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3885] <... futex resumed>) = 0 [pid 3884] <... futex resumed>) = 1 [pid 3885] read(5, [pid 3884] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3885] <... read resumed>NULL, 0) = 0 [pid 3885] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3884] <... futex resumed>) = 0 [pid 3885] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3884] exit_group(0 [pid 3885] <... futex resumed>) = ? [pid 3884] <... exit_group resumed>) = ? [pid 3885] +++ exited with 0 +++ [pid 3886] <... futex resumed>) = ? [pid 3886] +++ exited with 0 +++ [pid 3884] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3884, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3887 ./strace-static-x86_64: Process 3887 attached [pid 3887] set_robust_list(0x555556e316e0, 24) = 0 [pid 3887] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3887] setpgid(0, 0) = 0 [pid 3887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3887] write(3, "1000", 4) = 4 [pid 3887] close(3) = 0 [pid 3887] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3887] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3887] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3887] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3888], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3888 [pid 3887] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3887] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3888 attached [pid 3888] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3888] memfd_create("syzkaller", 0) = 3 [pid 3888] ftruncate(3, 0) = 0 [pid 3888] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3888] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3888] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3888] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3888] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3887] <... futex resumed>) = 0 [pid 3888] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3887] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3888] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3887] <... futex resumed>) = 0 [pid 3887] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3888] pipe2([5, 6], 0) = 0 [pid 3888] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3887] <... futex resumed>) = 0 [pid 3888] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3887] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3887] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3888] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3888] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3888] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3887] <... futex resumed>) = 0 [pid 3888] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3887] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3888] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3887] <... futex resumed>) = 0 [pid 3888] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3887] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3887] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3887] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3887] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3887] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3889], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3889 [pid 3887] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3887] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3889 attached [pid 3889] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3889] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3889] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3887] <... futex resumed>) = 0 [pid 3887] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3887] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3889] <... futex resumed>) = 1 [pid 3889] read(5, NULL, 0) = 0 [pid 3889] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3887] <... futex resumed>) = 0 [pid 3889] <... futex resumed>) = 1 [pid 3889] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3888] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3888] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3888] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3887] exit_group(0) = ? [pid 3888] <... futex resumed>) = ? [pid 3889] <... futex resumed>) = ? [pid 3888] +++ exited with 0 +++ [pid 3889] +++ exited with 0 +++ [pid 3887] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3887, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3890 attached , child_tidptr=0x555556e316d0) = 3890 [pid 3890] set_robust_list(0x555556e316e0, 24) = 0 [pid 3890] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3890] setpgid(0, 0) = 0 [pid 3890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3890] write(3, "1000", 4) = 4 [pid 3890] close(3) = 0 [pid 3890] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3890] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3890] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3890] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3891], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3891 [pid 3890] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3890] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3891 attached [pid 3891] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3891] memfd_create("syzkaller", 0) = 3 [pid 3891] ftruncate(3, 0) = 0 [pid 3891] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3891] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3891] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3891] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3891] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3890] <... futex resumed>) = 0 [pid 3890] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3890] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3891] <... futex resumed>) = 1 [pid 3891] pipe2([5, 6], 0) = 0 [pid 3891] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3890] <... futex resumed>) = 0 [pid 3890] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3890] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3891] <... futex resumed>) = 1 [pid 3891] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3891] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3890] <... futex resumed>) = 0 [pid 3890] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3890] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3891] <... futex resumed>) = 1 [pid 3891] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3890] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3890] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3890] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3890] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3890] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3890] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3890] clone(child_stack=0x7fbc2b5fd2f0, 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 3892 attached , parent_tid=[3892], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3892 [pid 3892] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3890] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3892] <... set_robust_list resumed>) = 0 [pid 3890] <... futex resumed>) = 0 [pid 3892] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3890] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3892] <... write resumed>) = 8 [pid 3891] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3892] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3891] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3892] <... futex resumed>) = 1 [pid 3891] <... futex resumed>) = 0 [pid 3890] <... futex resumed>) = 0 [pid 3892] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3891] read(5, [pid 3890] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3891] <... read resumed>NULL, 0) = 0 [pid 3890] <... futex resumed>) = 0 [pid 3891] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3890] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3891] <... futex resumed>) = 0 [pid 3890] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3891] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3890] exit_group(0 [pid 3892] <... futex resumed>) = ? [pid 3891] <... futex resumed>) = ? [pid 3890] <... exit_group resumed>) = ? [pid 3891] +++ exited with 0 +++ [pid 3892] +++ exited with 0 +++ [pid 3890] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3890, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3893 attached , child_tidptr=0x555556e316d0) = 3893 [pid 3893] set_robust_list(0x555556e316e0, 24) = 0 [pid 3893] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3893] setpgid(0, 0) = 0 [pid 3893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3893] write(3, "1000", 4) = 4 [pid 3893] close(3) = 0 [pid 3893] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3893] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3893] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3893] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3894], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3894 [pid 3893] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3893] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3894 attached [pid 3894] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3894] memfd_create("syzkaller", 0) = 3 [pid 3894] ftruncate(3, 0) = 0 [pid 3894] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3894] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3894] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3894] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3894] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3893] <... futex resumed>) = 0 [pid 3893] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3893] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3894] <... futex resumed>) = 1 [pid 3894] pipe2([5, 6], 0) = 0 [pid 3894] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3893] <... futex resumed>) = 0 [pid 3893] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3893] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3894] <... futex resumed>) = 1 [pid 3894] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3894] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3893] <... futex resumed>) = 0 [pid 3893] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3893] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3894] <... futex resumed>) = 1 [pid 3894] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3893] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3893] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3893] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3893] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3893] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3895], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3895 [pid 3893] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3893] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3895 attached [pid 3895] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3895] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3894] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3894] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3894] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3895] <... write resumed>) = 8 [pid 3895] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3893] <... futex resumed>) = 0 [pid 3893] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3894] <... futex resumed>) = 0 [pid 3893] <... futex resumed>) = 1 [pid 3894] read(5, [pid 3893] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3894] <... read resumed>NULL, 0) = 0 [pid 3894] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3893] <... futex resumed>) = 0 [pid 3894] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3893] exit_group(0 [pid 3894] <... futex resumed>) = ? [pid 3893] <... exit_group resumed>) = ? [pid 3894] +++ exited with 0 +++ [pid 3895] <... futex resumed>) = ? [pid 3895] +++ exited with 0 +++ [pid 3893] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3893, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3896 ./strace-static-x86_64: Process 3896 attached [pid 3896] set_robust_list(0x555556e316e0, 24) = 0 [pid 3896] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3896] setpgid(0, 0) = 0 [pid 3896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3896] write(3, "1000", 4) = 4 [pid 3896] close(3) = 0 [pid 3896] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3896] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3896] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3896] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3897], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3897 [pid 3896] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3896] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3897 attached [pid 3897] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3897] memfd_create("syzkaller", 0) = 3 [pid 3897] ftruncate(3, 0) = 0 [pid 3897] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3897] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3897] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3897] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3897] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3896] <... futex resumed>) = 0 [pid 3897] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3896] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3896] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3897] <... futex resumed>) = 0 [pid 3897] pipe2([5, 6], 0) = 0 [pid 3897] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3896] <... futex resumed>) = 0 [pid 3896] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3896] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3897] <... futex resumed>) = 1 [pid 3897] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3897] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3896] <... futex resumed>) = 0 [pid 3896] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3896] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3897] <... futex resumed>) = 1 [pid 3897] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3896] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3896] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3896] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3896] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3896] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3896] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3898], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3898 [pid 3896] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3896] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3898 attached [pid 3898] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3898] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3897] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3897] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3897] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3898] <... write resumed>) = 8 [pid 3898] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3896] <... futex resumed>) = 0 [pid 3896] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3897] <... futex resumed>) = 0 [pid 3896] <... futex resumed>) = 1 [pid 3897] read(5, [pid 3896] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3897] <... read resumed>NULL, 0) = 0 [pid 3897] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3896] <... futex resumed>) = 0 [pid 3897] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3896] exit_group(0 [pid 3897] <... futex resumed>) = ? [pid 3896] <... exit_group resumed>) = ? [pid 3897] +++ exited with 0 +++ [pid 3898] <... futex resumed>) = ? [pid 3898] +++ exited with 0 +++ [pid 3896] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3896, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3899 ./strace-static-x86_64: Process 3899 attached [pid 3899] set_robust_list(0x555556e316e0, 24) = 0 [pid 3899] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3899] setpgid(0, 0) = 0 [pid 3899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3899] write(3, "1000", 4) = 4 [pid 3899] close(3) = 0 [pid 3899] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3899] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3899] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3899] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3900], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3900 [pid 3899] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3899] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3900 attached [pid 3900] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3900] memfd_create("syzkaller", 0) = 3 [pid 3900] ftruncate(3, 0) = 0 [pid 3900] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3900] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3900] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3900] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3900] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3899] <... futex resumed>) = 0 [pid 3899] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3899] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3900] <... futex resumed>) = 1 [pid 3900] pipe2([5, 6], 0) = 0 [pid 3900] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3899] <... futex resumed>) = 0 [pid 3899] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3899] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3900] <... futex resumed>) = 1 [pid 3900] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3900] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3899] <... futex resumed>) = 0 [pid 3899] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3899] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3900] <... futex resumed>) = 1 [pid 3900] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3899] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3899] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3899] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3899] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3899] clone(child_stack=0x7fbc2b5fd2f0, 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 3901 attached [pid 3901] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3899] <... clone resumed>, parent_tid=[3901], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3901 [pid 3901] <... set_robust_list resumed>) = 0 [pid 3899] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3901] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3899] <... futex resumed>) = 0 [pid 3899] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3901] <... write resumed>) = 8 [pid 3900] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3901] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3900] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3901] <... futex resumed>) = 1 [pid 3900] <... futex resumed>) = 0 [pid 3899] <... futex resumed>) = 0 [pid 3901] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3900] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3899] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3900] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3899] <... futex resumed>) = 0 [pid 3900] read(5, [pid 3899] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3900] <... read resumed>NULL, 0) = 0 [pid 3900] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3899] <... futex resumed>) = 0 [pid 3900] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3899] exit_group(0 [pid 3901] <... futex resumed>) = ? [pid 3900] <... futex resumed>) = ? [pid 3899] <... exit_group resumed>) = ? [pid 3901] +++ exited with 0 +++ [pid 3900] +++ exited with 0 +++ [pid 3899] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3899, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3902 ./strace-static-x86_64: Process 3902 attached [pid 3902] set_robust_list(0x555556e316e0, 24) = 0 [pid 3902] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3902] setpgid(0, 0) = 0 [pid 3902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3902] write(3, "1000", 4) = 4 [pid 3902] close(3) = 0 [pid 3902] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3902] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3902] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3902] clone(child_stack=0x7fbc2b61e2f0, 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 3903 attached [pid 3903] set_robust_list(0x7fbc2b61e9e0, 24 [pid 3902] <... clone resumed>, parent_tid=[3903], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3903 [pid 3902] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3902] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3903] <... set_robust_list resumed>) = 0 [pid 3903] memfd_create("syzkaller", 0) = 3 [pid 3903] ftruncate(3, 0) = 0 [pid 3903] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3903] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3903] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3903] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3903] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3903] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3902] <... futex resumed>) = 0 [pid 3902] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3902] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3903] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3903] pipe2([5, 6], 0) = 0 [pid 3903] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3902] <... futex resumed>) = 0 [pid 3902] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3902] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3903] <... futex resumed>) = 1 [pid 3903] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3903] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3902] <... futex resumed>) = 0 [pid 3903] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3902] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3903] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3902] <... futex resumed>) = 0 [pid 3903] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3902] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3902] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3902] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3902] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3902] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3902] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3904], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3904 ./strace-static-x86_64: Process 3904 attached [pid 3902] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3902] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3904] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3904] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3904] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3902] <... futex resumed>) = 0 [pid 3904] read(5, [pid 3903] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3902] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3904] <... read resumed>NULL, 0) = 0 [pid 3903] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3902] <... futex resumed>) = 0 [pid 3904] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3902] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3904] <... futex resumed>) = 0 [pid 3903] <... futex resumed>) = 0 [pid 3902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3904] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3903] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3902] exit_group(0 [pid 3904] <... futex resumed>) = ? [pid 3903] <... futex resumed>) = ? [pid 3902] <... exit_group resumed>) = ? [pid 3903] +++ exited with 0 +++ [pid 3904] +++ exited with 0 +++ [pid 3902] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3902, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3905 ./strace-static-x86_64: Process 3905 attached [pid 3905] set_robust_list(0x555556e316e0, 24) = 0 [pid 3905] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3905] setpgid(0, 0) = 0 [pid 3905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3905] write(3, "1000", 4) = 4 [pid 3905] close(3) = 0 [pid 3905] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3905] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3905] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3905] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3906], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3906 [pid 3905] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3905] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3906 attached [pid 3906] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3906] memfd_create("syzkaller", 0) = 3 [pid 3906] ftruncate(3, 0) = 0 [pid 3906] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3906] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3906] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3906] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3906] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3905] <... futex resumed>) = 0 [pid 3905] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3905] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3906] <... futex resumed>) = 1 [pid 3906] pipe2([5, 6], 0) = 0 [pid 3906] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3905] <... futex resumed>) = 0 [pid 3905] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3905] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3906] <... futex resumed>) = 1 [pid 3906] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3906] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3905] <... futex resumed>) = 0 [pid 3905] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3905] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3906] <... futex resumed>) = 1 [pid 3906] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3905] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3905] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3905] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3905] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3905] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3905] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3905] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3907], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3907 [pid 3905] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3905] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3907 attached [pid 3907] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3907] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3906] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3906] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3906] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3907] <... write resumed>) = 8 [pid 3907] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3905] <... futex resumed>) = 0 [pid 3905] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3906] <... futex resumed>) = 0 [pid 3905] <... futex resumed>) = 1 [pid 3906] read(5, [pid 3905] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3906] <... read resumed>NULL, 0) = 0 [pid 3906] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3905] <... futex resumed>) = 0 [pid 3906] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3905] exit_group(0 [pid 3906] <... futex resumed>) = ? [pid 3905] <... exit_group resumed>) = ? [pid 3906] +++ exited with 0 +++ [pid 3907] <... futex resumed>) = ? [pid 3907] +++ exited with 0 +++ [pid 3905] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3905, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3908 ./strace-static-x86_64: Process 3908 attached [pid 3908] set_robust_list(0x555556e316e0, 24) = 0 [pid 3908] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3908] setpgid(0, 0) = 0 [pid 3908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3908] write(3, "1000", 4) = 4 [pid 3908] close(3) = 0 [pid 3908] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3908] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3908] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3908] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3909], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3909 [pid 3908] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3908] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3909 attached [pid 3909] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3909] memfd_create("syzkaller", 0) = 3 [pid 3909] ftruncate(3, 0) = 0 [pid 3909] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3909] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3909] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3909] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3909] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3908] <... futex resumed>) = 0 [pid 3908] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3908] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3909] <... futex resumed>) = 1 [pid 3909] pipe2([5, 6], 0) = 0 [pid 3909] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3908] <... futex resumed>) = 0 [pid 3908] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3908] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3909] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3909] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3908] <... futex resumed>) = 0 [pid 3908] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3908] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3909] <... futex resumed>) = 1 [pid 3909] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3908] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3908] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3908] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3908] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3908] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3910], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3910 [pid 3908] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3908] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3910 attached [pid 3910] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3910] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3909] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3909] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3909] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3910] <... write resumed>) = 8 [pid 3910] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3908] <... futex resumed>) = 0 [pid 3908] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3909] <... futex resumed>) = 0 [pid 3908] <... futex resumed>) = 1 [pid 3909] read(5, [pid 3908] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3909] <... read resumed>NULL, 0) = 0 [pid 3909] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3908] <... futex resumed>) = 0 [pid 3909] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3908] exit_group(0 [pid 3909] <... futex resumed>) = ? [pid 3908] <... exit_group resumed>) = ? [pid 3909] +++ exited with 0 +++ [pid 3910] <... futex resumed>) = ? [pid 3910] +++ exited with 0 +++ [pid 3908] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3908, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3911 ./strace-static-x86_64: Process 3911 attached [pid 3911] set_robust_list(0x555556e316e0, 24) = 0 [pid 3911] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3911] setpgid(0, 0) = 0 [pid 3911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3911] write(3, "1000", 4) = 4 [pid 3911] close(3) = 0 [pid 3911] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3911] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3911] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3911] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3912], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3912 [pid 3911] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3911] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3912 attached [pid 3912] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3912] memfd_create("syzkaller", 0) = 3 [pid 3912] ftruncate(3, 0) = 0 [pid 3912] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3912] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3912] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3912] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3912] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3911] <... futex resumed>) = 0 [pid 3912] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3911] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3912] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3911] <... futex resumed>) = 0 [pid 3912] pipe2( [pid 3911] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3912] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3912] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3911] <... futex resumed>) = 0 [pid 3911] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3912] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 3911] <... futex resumed>) = 0 [pid 3912] <... write resumed>) = 64568 [pid 3911] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3912] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3911] <... futex resumed>) = 0 [pid 3912] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3911] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3911] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3911] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3911] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3911] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3911] clone(child_stack=0x7fbc2b5fd2f0, 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 3913 attached , parent_tid=[3913], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3913 [pid 3913] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3911] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3913] <... set_robust_list resumed>) = 0 [pid 3911] <... futex resumed>) = 0 [pid 3913] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3911] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3913] <... write resumed>) = 8 [pid 3912] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3913] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3912] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3913] <... futex resumed>) = 1 [pid 3912] <... futex resumed>) = 0 [pid 3911] <... futex resumed>) = 0 [pid 3913] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3912] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 3911] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3912] read(5, NULL, 0) = 0 [pid 3911] <... futex resumed>) = 0 [pid 3912] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3911] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3912] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3911] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3911] exit_group(0 [pid 3913] <... futex resumed>) = ? [pid 3912] <... futex resumed>) = ? [pid 3911] <... exit_group resumed>) = ? [pid 3913] +++ exited with 0 +++ [pid 3912] +++ exited with 0 +++ [pid 3911] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3911, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3914 ./strace-static-x86_64: Process 3914 attached [pid 3914] set_robust_list(0x555556e316e0, 24) = 0 [pid 3914] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3914] setpgid(0, 0) = 0 [pid 3914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3914] write(3, "1000", 4) = 4 [pid 3914] close(3) = 0 [pid 3914] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3914] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3914] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3914] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3915], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3915 [pid 3914] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3914] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3915 attached [pid 3915] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3915] memfd_create("syzkaller", 0) = 3 [pid 3915] ftruncate(3, 0) = 0 [pid 3915] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3915] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3915] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3915] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3915] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3914] <... futex resumed>) = 0 [pid 3914] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3914] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3915] <... futex resumed>) = 1 [pid 3915] pipe2([5, 6], 0) = 0 [pid 3915] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3914] <... futex resumed>) = 0 [pid 3914] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3914] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3915] <... futex resumed>) = 1 [pid 3915] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3915] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3914] <... futex resumed>) = 0 [pid 3914] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3914] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3915] <... futex resumed>) = 1 [pid 3915] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3914] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3914] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3914] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3914] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3914] clone(child_stack=0x7fbc2b5fd2f0, 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 3916 attached , parent_tid=[3916], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3916 [pid 3914] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3916] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3914] <... futex resumed>) = 0 [pid 3914] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3916] <... set_robust_list resumed>) = 0 [pid 3916] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3916] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3916] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3914] <... futex resumed>) = 0 [pid 3914] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3915] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3914] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3916] <... futex resumed>) = 0 [pid 3915] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3916] read(5, NULL, 0) = 0 [pid 3916] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3915] <... futex resumed>) = 0 [pid 3916] <... futex resumed>) = 1 [pid 3915] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3914] <... futex resumed>) = 0 [pid 3916] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3914] exit_group(0) = ? [pid 3916] <... futex resumed>) = ? [pid 3916] +++ exited with 0 +++ [pid 3915] <... futex resumed>) = ? [pid 3915] +++ exited with 0 +++ [pid 3914] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3914, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3917 ./strace-static-x86_64: Process 3917 attached [pid 3917] set_robust_list(0x555556e316e0, 24) = 0 [pid 3917] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3917] setpgid(0, 0) = 0 [pid 3917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3917] write(3, "1000", 4) = 4 [pid 3917] close(3) = 0 [pid 3917] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3917] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3917] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3917] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3918], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3918 [pid 3917] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3917] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3918 attached [pid 3918] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3918] memfd_create("syzkaller", 0) = 3 [pid 3918] ftruncate(3, 0) = 0 [pid 3918] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3918] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3918] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3918] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3918] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3917] <... futex resumed>) = 0 [pid 3917] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3917] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3918] <... futex resumed>) = 1 [pid 3918] pipe2([5, 6], 0) = 0 [pid 3918] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3917] <... futex resumed>) = 0 [pid 3917] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3917] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3918] <... futex resumed>) = 1 [pid 3918] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3918] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3917] <... futex resumed>) = 0 [pid 3917] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3917] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3918] <... futex resumed>) = 1 [pid 3918] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3917] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3917] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3917] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3917] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3917] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3917] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3919], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3919 [pid 3917] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3917] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3919 attached [pid 3919] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3919] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3918] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3918] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3918] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3919] <... write resumed>) = 8 [pid 3919] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3917] <... futex resumed>) = 0 [pid 3917] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3918] <... futex resumed>) = 0 [pid 3917] <... futex resumed>) = 1 [pid 3918] read(5, [pid 3917] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3918] <... read resumed>NULL, 0) = 0 [pid 3918] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3917] <... futex resumed>) = 0 [pid 3918] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3917] exit_group(0 [pid 3918] <... futex resumed>) = ? [pid 3917] <... exit_group resumed>) = ? [pid 3918] +++ exited with 0 +++ [pid 3919] <... futex resumed>) = ? [pid 3919] +++ exited with 0 +++ [pid 3917] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3917, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3920 attached , child_tidptr=0x555556e316d0) = 3920 [pid 3920] set_robust_list(0x555556e316e0, 24) = 0 [pid 3920] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3920] setpgid(0, 0) = 0 [pid 3920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3920] write(3, "1000", 4) = 4 [pid 3920] close(3) = 0 [pid 3920] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3920] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3920] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3920] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3921], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3921 [pid 3920] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3920] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3921 attached [pid 3921] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3921] memfd_create("syzkaller", 0) = 3 [pid 3921] ftruncate(3, 0) = 0 [pid 3921] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3921] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3921] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3921] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3921] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3920] <... futex resumed>) = 0 [pid 3920] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3920] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3921] <... futex resumed>) = 1 [pid 3921] pipe2([5, 6], 0) = 0 [pid 3921] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3920] <... futex resumed>) = 0 [pid 3920] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3920] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3921] <... futex resumed>) = 1 [pid 3921] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3921] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3920] <... futex resumed>) = 0 [pid 3920] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3920] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3921] <... futex resumed>) = 1 [pid 3921] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3920] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3920] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3920] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3920] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3920] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3920] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3922], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3922 [pid 3920] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3920] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3922 attached [pid 3922] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3922] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3921] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3921] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3921] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3922] <... write resumed>) = 8 [pid 3922] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3920] <... futex resumed>) = 0 [pid 3920] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3921] <... futex resumed>) = 0 [pid 3920] <... futex resumed>) = 1 [pid 3921] read(5, [pid 3920] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3921] <... read resumed>NULL, 0) = 0 [pid 3921] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3920] <... futex resumed>) = 0 [pid 3921] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3920] exit_group(0 [pid 3921] <... futex resumed>) = ? [pid 3920] <... exit_group resumed>) = ? [pid 3921] +++ exited with 0 +++ [pid 3922] <... futex resumed>) = ? [pid 3922] +++ exited with 0 +++ [pid 3920] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3920, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3923 ./strace-static-x86_64: Process 3923 attached [pid 3923] set_robust_list(0x555556e316e0, 24) = 0 [pid 3923] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3923] setpgid(0, 0) = 0 [pid 3923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3923] write(3, "1000", 4) = 4 [pid 3923] close(3) = 0 [pid 3923] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3923] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3923] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3923] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3924], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3924 [pid 3923] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3923] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3924 attached [pid 3924] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3924] memfd_create("syzkaller", 0) = 3 [pid 3924] ftruncate(3, 0) = 0 [pid 3924] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3924] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3924] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3924] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3924] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3923] <... futex resumed>) = 0 [pid 3923] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3923] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3924] <... futex resumed>) = 1 [pid 3924] pipe2([5, 6], 0) = 0 [pid 3924] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3923] <... futex resumed>) = 0 [pid 3923] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3923] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3924] <... futex resumed>) = 1 [pid 3924] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3924] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3923] <... futex resumed>) = 0 [pid 3923] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3923] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3924] <... futex resumed>) = 1 [pid 3924] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3923] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3923] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3923] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3923] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3923] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3923] clone(child_stack=0x7fbc2b5fd2f0, 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 3925 attached [pid 3925] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3923] <... clone resumed>, parent_tid=[3925], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3925 [pid 3925] <... set_robust_list resumed>) = 0 [pid 3923] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3925] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3923] <... futex resumed>) = 0 [pid 3925] <... write resumed>) = 8 [pid 3923] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3925] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3923] <... futex resumed>) = 0 [pid 3925] read(5, [pid 3924] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3923] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3925] <... read resumed>NULL, 0) = 0 [pid 3923] <... futex resumed>) = 0 [pid 3925] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3923] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3925] <... futex resumed>) = 0 [pid 3923] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3925] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3924] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3924] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3923] exit_group(0 [pid 3925] <... futex resumed>) = ? [pid 3924] <... futex resumed>) = ? [pid 3923] <... exit_group resumed>) = ? [pid 3925] +++ exited with 0 +++ [pid 3924] +++ exited with 0 +++ [pid 3923] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3923, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3926 ./strace-static-x86_64: Process 3926 attached [pid 3926] set_robust_list(0x555556e316e0, 24) = 0 [pid 3926] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3926] setpgid(0, 0) = 0 [pid 3926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3926] write(3, "1000", 4) = 4 [pid 3926] close(3) = 0 [pid 3926] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3926] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3926] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3926] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3927], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3927 [pid 3926] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3926] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3927 attached [pid 3927] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3927] memfd_create("syzkaller", 0) = 3 [pid 3927] ftruncate(3, 0) = 0 [pid 3927] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3927] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3927] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3927] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3927] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3926] <... futex resumed>) = 0 [pid 3926] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3926] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3927] <... futex resumed>) = 1 [pid 3927] pipe2([5, 6], 0) = 0 [pid 3927] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3926] <... futex resumed>) = 0 [pid 3926] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3926] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3927] <... futex resumed>) = 1 [pid 3927] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3927] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3926] <... futex resumed>) = 0 [pid 3926] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3926] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3927] <... futex resumed>) = 1 [pid 3927] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3926] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3926] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3926] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3926] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3926] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3926] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3928], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3928 [pid 3926] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3926] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3928 attached [pid 3928] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3928] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3928] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3926] <... futex resumed>) = 0 [pid 3926] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3926] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3928] <... futex resumed>) = 1 [pid 3928] read(5, NULL, 0) = 0 [pid 3928] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3926] <... futex resumed>) = 0 [pid 3928] <... futex resumed>) = 1 [pid 3928] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3927] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3927] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3927] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3926] exit_group(0 [pid 3927] <... futex resumed>) = ? [pid 3926] <... exit_group resumed>) = ? [pid 3928] <... futex resumed>) = ? [pid 3927] +++ exited with 0 +++ [pid 3928] +++ exited with 0 +++ [pid 3926] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3926, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3929 ./strace-static-x86_64: Process 3929 attached [pid 3929] set_robust_list(0x555556e316e0, 24) = 0 [pid 3929] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3929] setpgid(0, 0) = 0 [pid 3929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3929] write(3, "1000", 4) = 4 [pid 3929] close(3) = 0 [pid 3929] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3929] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3929] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3929] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3930], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3930 [pid 3929] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3929] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3930 attached [pid 3930] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3930] memfd_create("syzkaller", 0) = 3 [pid 3930] ftruncate(3, 0) = 0 [pid 3930] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3930] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3930] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3930] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3930] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3929] <... futex resumed>) = 0 [pid 3929] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3930] pipe2( [pid 3929] <... futex resumed>) = 0 [pid 3929] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3930] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3930] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3929] <... futex resumed>) = 0 [pid 3930] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3929] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3929] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3930] <... futex resumed>) = 0 [pid 3930] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3930] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3929] <... futex resumed>) = 0 [pid 3929] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3929] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3930] <... futex resumed>) = 1 [pid 3930] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3929] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3929] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3929] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3929] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3929] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3929] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3929] clone(child_stack=0x7fbc2b5fd2f0, 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 3931 attached , parent_tid=[3931], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3931 [pid 3929] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3929] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3931] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3931] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3930] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3931] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3930] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3931] <... futex resumed>) = 1 [pid 3930] <... futex resumed>) = 0 [pid 3929] <... futex resumed>) = 0 [pid 3931] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3930] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 3929] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3930] read(5, NULL, 0) = 0 [pid 3929] <... futex resumed>) = 0 [pid 3930] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3929] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3930] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3929] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3929] exit_group(0 [pid 3931] <... futex resumed>) = ? [pid 3930] <... futex resumed>) = ? [pid 3929] <... exit_group resumed>) = ? [pid 3931] +++ exited with 0 +++ [pid 3930] +++ exited with 0 +++ [pid 3929] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3929, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3932 attached , child_tidptr=0x555556e316d0) = 3932 [pid 3932] set_robust_list(0x555556e316e0, 24) = 0 [pid 3932] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3932] setpgid(0, 0) = 0 [pid 3932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3932] write(3, "1000", 4) = 4 [pid 3932] close(3) = 0 [pid 3932] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3932] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3932] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3932] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3933], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3933 [pid 3932] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3932] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3933 attached [pid 3933] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3933] memfd_create("syzkaller", 0) = 3 [pid 3933] ftruncate(3, 0) = 0 [pid 3933] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3933] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3933] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3933] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3933] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3932] <... futex resumed>) = 0 [pid 3932] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3932] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3933] <... futex resumed>) = 1 [pid 3933] pipe2([5, 6], 0) = 0 [pid 3933] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3932] <... futex resumed>) = 0 [pid 3932] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3932] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3933] <... futex resumed>) = 1 [pid 3933] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3933] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3932] <... futex resumed>) = 0 [pid 3932] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3932] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3933] <... futex resumed>) = 1 [pid 3933] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3932] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3932] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3932] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3932] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3932] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3932] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3934], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3934 [pid 3932] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3932] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3934 attached [pid 3934] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3934] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3934] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3932] <... futex resumed>) = 0 [pid 3932] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3933] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3932] <... futex resumed>) = 0 [pid 3933] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3932] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3933] <... futex resumed>) = 0 [pid 3933] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3934] <... futex resumed>) = 1 [pid 3934] read(5, NULL, 0) = 0 [pid 3934] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3932] <... futex resumed>) = 0 [pid 3932] exit_group(0) = ? [pid 3933] <... futex resumed>) = ? [pid 3934] <... futex resumed>) = ? [pid 3934] +++ exited with 0 +++ [pid 3933] +++ exited with 0 +++ [pid 3932] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3932, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3935 ./strace-static-x86_64: Process 3935 attached [pid 3935] set_robust_list(0x555556e316e0, 24) = 0 [pid 3935] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3935] setpgid(0, 0) = 0 [pid 3935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3935] write(3, "1000", 4) = 4 [pid 3935] close(3) = 0 [pid 3935] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3935] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3935] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3935] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3936], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3936 [pid 3935] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3935] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3936 attached [pid 3936] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3936] memfd_create("syzkaller", 0) = 3 [pid 3936] ftruncate(3, 0) = 0 [pid 3936] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3936] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3936] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3936] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3936] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3935] <... futex resumed>) = 0 [pid 3935] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3935] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3936] <... futex resumed>) = 1 [pid 3936] pipe2([5, 6], 0) = 0 [pid 3936] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3935] <... futex resumed>) = 0 [pid 3935] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3935] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3936] <... futex resumed>) = 1 [pid 3936] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3936] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3935] <... futex resumed>) = 0 [pid 3935] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3935] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3936] <... futex resumed>) = 1 [pid 3936] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3935] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3935] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3935] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3935] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3935] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3935] clone(child_stack=0x7fbc2b5fd2f0, 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 3937 attached , parent_tid=[3937], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3937 [pid 3937] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3935] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3937] <... set_robust_list resumed>) = 0 [pid 3935] <... futex resumed>) = 0 [pid 3937] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3935] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3937] <... write resumed>) = 8 [pid 3936] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3937] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3936] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3937] <... futex resumed>) = 1 [pid 3936] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3935] <... futex resumed>) = 0 [pid 3937] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3936] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3935] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3936] read(5, [pid 3935] <... futex resumed>) = 0 [pid 3936] <... read resumed>NULL, 0) = 0 [pid 3935] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3936] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3935] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3936] <... futex resumed>) = 0 [pid 3935] exit_group(0 [pid 3937] <... futex resumed>) = ? [pid 3935] <... exit_group resumed>) = ? [pid 3936] +++ exited with 0 +++ [pid 3937] +++ exited with 0 +++ [pid 3935] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3935, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3938 attached , child_tidptr=0x555556e316d0) = 3938 [pid 3938] set_robust_list(0x555556e316e0, 24) = 0 [pid 3938] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3938] setpgid(0, 0) = 0 [pid 3938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3938] write(3, "1000", 4) = 4 [pid 3938] close(3) = 0 [pid 3938] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3938] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3938] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3938] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3939], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3939 [pid 3938] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3938] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3939 attached [pid 3939] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3939] memfd_create("syzkaller", 0) = 3 [pid 3939] ftruncate(3, 0) = 0 [pid 3939] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3939] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3939] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3939] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3939] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3938] <... futex resumed>) = 0 [pid 3938] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3938] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3939] <... futex resumed>) = 1 [pid 3939] pipe2([5, 6], 0) = 0 [pid 3939] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3938] <... futex resumed>) = 0 [pid 3938] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3938] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3939] <... futex resumed>) = 1 [pid 3939] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3939] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3938] <... futex resumed>) = 0 [pid 3938] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3938] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3939] <... futex resumed>) = 1 [pid 3939] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3938] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3938] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3938] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3938] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3938] clone(child_stack=0x7fbc2b5fd2f0, 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 3940 attached , parent_tid=[3940], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3940 [pid 3938] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3938] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3940] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3940] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3940] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3938] <... futex resumed>) = 0 [pid 3940] read(5, [pid 3939] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3938] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3940] <... read resumed>NULL, 0) = 0 [pid 3938] <... futex resumed>) = 0 [pid 3940] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3939] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3938] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3940] <... futex resumed>) = 0 [pid 3938] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3940] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3939] <... futex resumed>) = 0 [pid 3938] exit_group(0 [pid 3940] <... futex resumed>) = ? [pid 3938] <... exit_group resumed>) = ? [pid 3940] +++ exited with 0 +++ [pid 3939] +++ exited with 0 +++ [pid 3938] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3938, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3941 attached , child_tidptr=0x555556e316d0) = 3941 [pid 3941] set_robust_list(0x555556e316e0, 24) = 0 [pid 3941] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3941] setpgid(0, 0) = 0 [pid 3941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3941] write(3, "1000", 4) = 4 [pid 3941] close(3) = 0 [pid 3941] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3941] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3941] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3941] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3942], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3942 [pid 3941] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3941] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3942 attached [pid 3942] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3942] memfd_create("syzkaller", 0) = 3 [pid 3942] ftruncate(3, 0) = 0 [pid 3942] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3942] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3942] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3942] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3942] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3941] <... futex resumed>) = 0 [pid 3941] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3941] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3942] <... futex resumed>) = 1 [pid 3942] pipe2([5, 6], 0) = 0 [pid 3942] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3941] <... futex resumed>) = 0 [pid 3941] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3941] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3942] <... futex resumed>) = 1 [pid 3942] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3942] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3941] <... futex resumed>) = 0 [pid 3941] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3941] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3942] <... futex resumed>) = 1 [pid 3942] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3941] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3941] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3941] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3941] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3941] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3941] clone(child_stack=0x7fbc2b5fd2f0, 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 3943 attached , parent_tid=[3943], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3943 [pid 3943] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3941] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3943] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3941] <... futex resumed>) = 0 [pid 3943] <... write resumed>) = 8 [pid 3941] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3943] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3942] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3943] <... futex resumed>) = 1 [pid 3942] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3941] <... futex resumed>) = 0 [pid 3943] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3942] <... futex resumed>) = 0 [pid 3941] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3942] read(5, [pid 3941] <... futex resumed>) = 0 [pid 3942] <... read resumed>NULL, 0) = 0 [pid 3941] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3942] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3942] <... futex resumed>) = 0 [pid 3941] exit_group(0 [pid 3943] <... futex resumed>) = ? [pid 3941] <... exit_group resumed>) = ? [pid 3943] +++ exited with 0 +++ [pid 3942] +++ exited with 0 +++ [pid 3941] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3941, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3944 ./strace-static-x86_64: Process 3944 attached [pid 3944] set_robust_list(0x555556e316e0, 24) = 0 [pid 3944] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3944] setpgid(0, 0) = 0 [pid 3944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3944] write(3, "1000", 4) = 4 [pid 3944] close(3) = 0 [pid 3944] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3944] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3944] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3944] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3945], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3945 [pid 3944] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3944] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3945 attached [pid 3945] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3945] memfd_create("syzkaller", 0) = 3 [pid 3945] ftruncate(3, 0) = 0 [pid 3945] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3945] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3945] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3945] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3945] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3944] <... futex resumed>) = 0 [pid 3944] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3944] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3945] <... futex resumed>) = 1 [pid 3945] pipe2([5, 6], 0) = 0 [pid 3945] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3944] <... futex resumed>) = 0 [pid 3944] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3944] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3945] <... futex resumed>) = 1 [pid 3945] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3945] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3944] <... futex resumed>) = 0 [pid 3944] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3944] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3945] <... futex resumed>) = 1 [pid 3945] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3944] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3944] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3944] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3944] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3944] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3946], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3946 [pid 3944] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3944] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3946 attached [pid 3946] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3946] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3945] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3945] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3945] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3946] <... write resumed>) = 8 [pid 3946] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3944] <... futex resumed>) = 0 [pid 3944] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3945] <... futex resumed>) = 0 [pid 3944] <... futex resumed>) = 1 [pid 3945] read(5, [pid 3944] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3945] <... read resumed>NULL, 0) = 0 [pid 3945] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3944] <... futex resumed>) = 0 [pid 3945] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3944] exit_group(0 [pid 3945] <... futex resumed>) = ? [pid 3944] <... exit_group resumed>) = ? [pid 3945] +++ exited with 0 +++ [pid 3946] <... futex resumed>) = ? [pid 3946] +++ exited with 0 +++ [pid 3944] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3944, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3947 ./strace-static-x86_64: Process 3947 attached [pid 3947] set_robust_list(0x555556e316e0, 24) = 0 [pid 3947] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3947] setpgid(0, 0) = 0 [pid 3947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3947] write(3, "1000", 4) = 4 [pid 3947] close(3) = 0 [pid 3947] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3947] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3947] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3947] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3948], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3948 [pid 3947] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3947] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3948 attached [pid 3948] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3948] memfd_create("syzkaller", 0) = 3 [pid 3948] ftruncate(3, 0) = 0 [pid 3948] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3948] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3948] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3948] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3948] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3947] <... futex resumed>) = 0 [pid 3947] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3947] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3948] <... futex resumed>) = 1 [pid 3948] pipe2([5, 6], 0) = 0 [pid 3948] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3947] <... futex resumed>) = 0 [pid 3947] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3947] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3948] <... futex resumed>) = 1 [pid 3948] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3948] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3947] <... futex resumed>) = 0 [pid 3947] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3947] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3948] <... futex resumed>) = 1 [pid 3948] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3947] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3947] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3947] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3947] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3947] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3947] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3949], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3949 [pid 3947] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3947] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3949 attached [pid 3949] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3949] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3948] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3949] <... write resumed>) = 8 [pid 3948] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3948] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3949] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3947] <... futex resumed>) = 0 [pid 3947] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3948] <... futex resumed>) = 0 [pid 3947] <... futex resumed>) = 1 [pid 3948] read(5, [pid 3947] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3948] <... read resumed>NULL, 0) = 0 [pid 3948] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3947] <... futex resumed>) = 0 [pid 3948] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3947] exit_group(0 [pid 3948] <... futex resumed>) = ? [pid 3947] <... exit_group resumed>) = ? [pid 3948] +++ exited with 0 +++ [pid 3949] <... futex resumed>) = ? [pid 3949] +++ exited with 0 +++ [pid 3947] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3947, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3950 ./strace-static-x86_64: Process 3950 attached [pid 3950] set_robust_list(0x555556e316e0, 24) = 0 [pid 3950] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3950] setpgid(0, 0) = 0 [pid 3950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3950] write(3, "1000", 4) = 4 [pid 3950] close(3) = 0 [pid 3950] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3950] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3950] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3950] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3951], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3951 [pid 3950] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3950] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3951 attached [pid 3951] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3951] memfd_create("syzkaller", 0) = 3 [pid 3951] ftruncate(3, 0) = 0 [pid 3951] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3951] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3951] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3951] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3951] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3950] <... futex resumed>) = 0 [pid 3950] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3951] <... futex resumed>) = 1 [pid 3950] <... futex resumed>) = 0 [pid 3950] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3951] pipe2([5, 6], 0) = 0 [pid 3951] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3950] <... futex resumed>) = 0 [pid 3950] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3950] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3951] <... futex resumed>) = 1 [pid 3951] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3951] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3950] <... futex resumed>) = 0 [pid 3950] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3950] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3951] <... futex resumed>) = 1 [pid 3951] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3950] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3950] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3950] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3950] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3950] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3950] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3950] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3952], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3952 [pid 3950] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3950] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3952 attached [pid 3952] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3952] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3951] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3951] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3951] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3952] <... write resumed>) = 8 [pid 3952] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3950] <... futex resumed>) = 0 [pid 3950] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3951] <... futex resumed>) = 0 [pid 3950] <... futex resumed>) = 1 [pid 3951] read(5, [pid 3950] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3951] <... read resumed>NULL, 0) = 0 [pid 3951] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3950] <... futex resumed>) = 0 [pid 3951] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3950] exit_group(0 [pid 3951] <... futex resumed>) = ? [pid 3950] <... exit_group resumed>) = ? [pid 3951] +++ exited with 0 +++ [pid 3952] <... futex resumed>) = ? [pid 3952] +++ exited with 0 +++ [pid 3950] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3950, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3953 ./strace-static-x86_64: Process 3953 attached [pid 3953] set_robust_list(0x555556e316e0, 24) = 0 [pid 3953] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3953] setpgid(0, 0) = 0 [pid 3953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3953] write(3, "1000", 4) = 4 [pid 3953] close(3) = 0 [pid 3953] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3953] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3953] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3953] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3954], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3954 [pid 3953] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3953] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3954 attached [pid 3954] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3954] memfd_create("syzkaller", 0) = 3 [pid 3954] ftruncate(3, 0) = 0 [pid 3954] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3954] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3954] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3954] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3954] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3953] <... futex resumed>) = 0 [pid 3953] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3954] <... futex resumed>) = 1 [pid 3954] pipe2( [pid 3953] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3954] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3954] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3953] <... futex resumed>) = 0 [pid 3953] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3953] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3954] <... futex resumed>) = 1 [pid 3954] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3954] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3953] <... futex resumed>) = 0 [pid 3953] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3953] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3954] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3953] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3953] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3953] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3953] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3953] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3955], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3955 [pid 3953] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3953] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3955 attached [pid 3955] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3955] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3954] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3954] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3954] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3955] <... write resumed>) = 8 [pid 3955] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3953] <... futex resumed>) = 0 [pid 3953] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3954] <... futex resumed>) = 0 [pid 3953] <... futex resumed>) = 1 [pid 3954] read(5, [pid 3953] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3954] <... read resumed>NULL, 0) = 0 [pid 3954] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3953] <... futex resumed>) = 0 [pid 3954] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3953] exit_group(0 [pid 3954] <... futex resumed>) = ? [pid 3953] <... exit_group resumed>) = ? [pid 3954] +++ exited with 0 +++ [pid 3955] <... futex resumed>) = ? [pid 3955] +++ exited with 0 +++ [pid 3953] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3953, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3956 ./strace-static-x86_64: Process 3956 attached [pid 3956] set_robust_list(0x555556e316e0, 24) = 0 [pid 3956] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3956] setpgid(0, 0) = 0 [pid 3956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3956] write(3, "1000", 4) = 4 [pid 3956] close(3) = 0 [pid 3956] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3956] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3956] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3956] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3957], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3957 [pid 3956] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3956] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3957 attached [pid 3957] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3957] memfd_create("syzkaller", 0) = 3 [pid 3957] ftruncate(3, 0) = 0 [pid 3957] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3957] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3957] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3957] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3957] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3957] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3956] <... futex resumed>) = 0 [pid 3956] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3957] <... futex resumed>) = 0 [pid 3956] <... futex resumed>) = 1 [pid 3957] pipe2( [pid 3956] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3957] <... pipe2 resumed>[5, 6], 0) = 0 [pid 3957] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3956] <... futex resumed>) = 0 [pid 3957] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3956] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3957] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3956] <... futex resumed>) = 0 [pid 3957] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 3956] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3957] <... write resumed>) = 64568 [pid 3957] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3956] <... futex resumed>) = 0 [pid 3957] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3956] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3957] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3956] <... futex resumed>) = 0 [pid 3957] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3956] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3956] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3956] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3956] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3956] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3958], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3958 [pid 3956] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3956] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3958 attached [pid 3958] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3958] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3957] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3957] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3957] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3958] <... write resumed>) = 8 [pid 3958] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3956] <... futex resumed>) = 0 [pid 3956] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3957] <... futex resumed>) = 0 [pid 3956] <... futex resumed>) = 1 [pid 3957] read(5, [pid 3956] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3957] <... read resumed>NULL, 0) = 0 [pid 3957] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3956] <... futex resumed>) = 0 [pid 3957] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3956] exit_group(0 [pid 3957] <... futex resumed>) = ? [pid 3956] <... exit_group resumed>) = ? [pid 3957] +++ exited with 0 +++ [pid 3958] <... futex resumed>) = ? [pid 3958] +++ exited with 0 +++ [pid 3956] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3956, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3959 ./strace-static-x86_64: Process 3959 attached [pid 3959] set_robust_list(0x555556e316e0, 24) = 0 [pid 3959] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3959] setpgid(0, 0) = 0 [pid 3959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3959] write(3, "1000", 4) = 4 [pid 3959] close(3) = 0 [pid 3959] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3959] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3959] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3959] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3960], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3960 [pid 3959] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3959] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3960 attached [pid 3960] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3960] memfd_create("syzkaller", 0) = 3 [pid 3960] ftruncate(3, 0) = 0 [pid 3960] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3960] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3960] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3960] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3960] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3959] <... futex resumed>) = 0 [pid 3959] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3960] <... futex resumed>) = 1 [pid 3959] <... futex resumed>) = 0 [pid 3959] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3960] pipe2([5, 6], 0) = 0 [pid 3960] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3959] <... futex resumed>) = 0 [pid 3959] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3959] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3960] <... futex resumed>) = 1 [pid 3960] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3960] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3959] <... futex resumed>) = 0 [pid 3959] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3959] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3960] <... futex resumed>) = 1 [pid 3960] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3959] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3959] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3959] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3959] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3959] clone(child_stack=0x7fbc2b5fd2f0, 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 3961 attached , parent_tid=[3961], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3961 [pid 3961] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3959] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3961] <... set_robust_list resumed>) = 0 [pid 3959] <... futex resumed>) = 0 [pid 3961] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3959] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3961] <... write resumed>) = 8 [pid 3960] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3961] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3960] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3961] <... futex resumed>) = 1 [pid 3960] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3959] <... futex resumed>) = 0 [pid 3961] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3959] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3960] <... futex resumed>) = 0 [pid 3959] <... futex resumed>) = 1 [pid 3960] read(5, [pid 3959] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3960] <... read resumed>NULL, 0) = 0 [pid 3960] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3959] <... futex resumed>) = 0 [pid 3960] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3959] exit_group(0 [pid 3960] <... futex resumed>) = ? [pid 3959] <... exit_group resumed>) = ? [pid 3960] +++ exited with 0 +++ [pid 3961] <... futex resumed>) = ? [pid 3961] +++ exited with 0 +++ [pid 3959] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3959, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3962 ./strace-static-x86_64: Process 3962 attached [pid 3962] set_robust_list(0x555556e316e0, 24) = 0 [pid 3962] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3962] setpgid(0, 0) = 0 [pid 3962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3962] write(3, "1000", 4) = 4 [pid 3962] close(3) = 0 [pid 3962] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3962] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3962] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3962] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3963], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3963 [pid 3962] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3962] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3963 attached [pid 3963] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3963] memfd_create("syzkaller", 0) = 3 [pid 3963] ftruncate(3, 0) = 0 [pid 3963] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3963] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3963] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3963] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3963] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3962] <... futex resumed>) = 0 [pid 3962] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3963] <... futex resumed>) = 1 [pid 3962] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3963] pipe2([5, 6], 0) = 0 [pid 3963] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3962] <... futex resumed>) = 0 [pid 3963] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3962] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3962] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3963] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3963] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3962] <... futex resumed>) = 0 [pid 3962] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3962] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3963] <... futex resumed>) = 1 [pid 3963] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3962] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3962] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3962] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3962] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3962] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3962] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3964], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3964 [pid 3962] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3962] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3964 attached [pid 3964] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3964] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3963] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3963] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3963] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3964] <... write resumed>) = 8 [pid 3964] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3962] <... futex resumed>) = 0 [pid 3962] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3963] <... futex resumed>) = 0 [pid 3962] <... futex resumed>) = 1 [pid 3963] read(5, [pid 3962] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3963] <... read resumed>NULL, 0) = 0 [pid 3963] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3962] <... futex resumed>) = 0 [pid 3963] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3962] exit_group(0 [pid 3963] <... futex resumed>) = ? [pid 3962] <... exit_group resumed>) = ? [pid 3963] +++ exited with 0 +++ [pid 3964] <... futex resumed>) = ? [pid 3964] +++ exited with 0 +++ [pid 3962] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3962, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3965 ./strace-static-x86_64: Process 3965 attached [pid 3965] set_robust_list(0x555556e316e0, 24) = 0 [pid 3965] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3965] setpgid(0, 0) = 0 [pid 3965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3965] write(3, "1000", 4) = 4 [pid 3965] close(3) = 0 [pid 3965] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3965] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3965] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3965] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3966], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3966 [pid 3965] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3965] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3966 attached [pid 3966] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3966] memfd_create("syzkaller", 0) = 3 [pid 3966] ftruncate(3, 0) = 0 [pid 3966] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3966] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3966] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3966] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3966] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3965] <... futex resumed>) = 0 [pid 3966] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3965] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3966] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3965] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3966] pipe2([5, 6], 0) = 0 [pid 3966] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3965] <... futex resumed>) = 0 [pid 3965] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3965] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3966] <... futex resumed>) = 1 [pid 3966] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3966] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3965] <... futex resumed>) = 0 [pid 3965] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3965] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3966] <... futex resumed>) = 1 [pid 3966] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3965] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3965] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3965] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3965] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3965] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3967], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3967 [pid 3965] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3965] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3967 attached [pid 3967] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3967] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3966] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3966] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3966] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3967] <... write resumed>) = 8 [pid 3967] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3965] <... futex resumed>) = 0 [pid 3965] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3966] <... futex resumed>) = 0 [pid 3965] <... futex resumed>) = 1 [pid 3966] read(5, [pid 3965] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3966] <... read resumed>NULL, 0) = 0 [pid 3966] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3965] <... futex resumed>) = 0 [pid 3966] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3965] exit_group(0 [pid 3966] <... futex resumed>) = ? [pid 3965] <... exit_group resumed>) = ? [pid 3966] +++ exited with 0 +++ [pid 3967] <... futex resumed>) = ? [pid 3967] +++ exited with 0 +++ [pid 3965] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3965, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3968 ./strace-static-x86_64: Process 3968 attached [pid 3968] set_robust_list(0x555556e316e0, 24) = 0 [pid 3968] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3968] setpgid(0, 0) = 0 [pid 3968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3968] write(3, "1000", 4) = 4 [pid 3968] close(3) = 0 [pid 3968] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3968] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3968] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3968] clone(child_stack=0x7fbc2b61e2f0, 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 3969 attached , parent_tid=[3969], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3969 [pid 3968] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3968] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3969] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3969] memfd_create("syzkaller", 0) = 3 [pid 3969] ftruncate(3, 0) = 0 [pid 3969] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3969] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3969] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3969] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3969] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3968] <... futex resumed>) = 0 [pid 3969] <... futex resumed>) = 1 [pid 3969] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3968] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3969] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3969] pipe2([5, 6], 0) = 0 [pid 3969] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3969] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3968] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3968] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3969] <... futex resumed>) = 0 [pid 3968] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3969] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3969] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3968] <... futex resumed>) = 0 [pid 3968] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3969] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3968] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3968] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3968] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3968] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3968] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3970], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3970 [pid 3968] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3968] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3970 attached [pid 3970] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3970] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3970] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3969] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3969] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3970] <... futex resumed>) = 1 [pid 3969] <... futex resumed>) = 0 [pid 3968] <... futex resumed>) = 0 [pid 3970] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3969] read(5, [pid 3968] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3969] <... read resumed>NULL, 0) = 0 [pid 3968] <... futex resumed>) = 0 [pid 3969] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3968] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3969] <... futex resumed>) = 0 [pid 3968] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3969] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3968] exit_group(0) = ? [pid 3969] <... futex resumed>) = ? [pid 3970] <... futex resumed>) = ? [pid 3970] +++ exited with 0 +++ [pid 3969] +++ exited with 0 +++ [pid 3968] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3968, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3971 ./strace-static-x86_64: Process 3971 attached [pid 3971] set_robust_list(0x555556e316e0, 24) = 0 [pid 3971] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3971] setpgid(0, 0) = 0 [pid 3971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3971] write(3, "1000", 4) = 4 [pid 3971] close(3) = 0 [pid 3971] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3971] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3971] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3971] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3972], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3972 [pid 3971] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3971] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3972 attached [pid 3972] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3972] memfd_create("syzkaller", 0) = 3 [pid 3972] ftruncate(3, 0) = 0 [pid 3972] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3972] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3972] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3972] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3972] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3971] <... futex resumed>) = 0 [pid 3971] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3971] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3972] <... futex resumed>) = 1 [pid 3972] pipe2([5, 6], 0) = 0 [pid 3972] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3971] <... futex resumed>) = 0 [pid 3971] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3971] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3972] <... futex resumed>) = 1 [pid 3972] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3972] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3971] <... futex resumed>) = 0 [pid 3971] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3971] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3972] <... futex resumed>) = 1 [pid 3972] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3971] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3971] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3971] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3971] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3971] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3971] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3971] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3971] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3973], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3973 [pid 3971] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3971] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3973 attached [pid 3973] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3973] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3972] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3972] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3973] <... write resumed>) = 8 [pid 3972] <... futex resumed>) = 0 [pid 3972] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3973] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3971] <... futex resumed>) = 0 [pid 3971] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3972] <... futex resumed>) = 0 [pid 3971] <... futex resumed>) = 1 [pid 3972] read(5, [pid 3971] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3972] <... read resumed>NULL, 0) = 0 [pid 3972] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3971] <... futex resumed>) = 0 [pid 3972] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3971] exit_group(0 [pid 3972] <... futex resumed>) = ? [pid 3971] <... exit_group resumed>) = ? [pid 3972] +++ exited with 0 +++ [pid 3973] <... futex resumed>) = ? [pid 3973] +++ exited with 0 +++ [pid 3971] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3971, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3974 ./strace-static-x86_64: Process 3974 attached [pid 3974] set_robust_list(0x555556e316e0, 24) = 0 [pid 3974] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3974] setpgid(0, 0) = 0 [pid 3974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3974] write(3, "1000", 4) = 4 [pid 3974] close(3) = 0 [pid 3974] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3974] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3974] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3974] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3975], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3975 [pid 3974] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3974] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3975 attached [pid 3975] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3975] memfd_create("syzkaller", 0) = 3 [pid 3975] ftruncate(3, 0) = 0 [pid 3975] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3975] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3975] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3975] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3975] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3974] <... futex resumed>) = 0 [pid 3974] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3974] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3975] <... futex resumed>) = 1 [pid 3975] pipe2([5, 6], 0) = 0 [pid 3975] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3974] <... futex resumed>) = 0 [pid 3974] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3974] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3975] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3975] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3974] <... futex resumed>) = 0 [pid 3975] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3974] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3975] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3974] <... futex resumed>) = 0 [pid 3975] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3974] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3974] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3974] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3974] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3974] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3974] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3976], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3976 ./strace-static-x86_64: Process 3976 attached [pid 3974] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3974] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3976] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3976] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3976] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3975] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3975] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3975] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3976] <... futex resumed>) = 1 [pid 3974] <... futex resumed>) = 0 [pid 3976] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3974] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3975] <... futex resumed>) = 0 [pid 3974] <... futex resumed>) = 1 [pid 3975] read(5, [pid 3974] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3975] <... read resumed>NULL, 0) = 0 [pid 3975] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3974] <... futex resumed>) = 0 [pid 3975] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3974] exit_group(0 [pid 3975] <... futex resumed>) = ? [pid 3974] <... exit_group resumed>) = ? [pid 3976] <... futex resumed>) = ? [pid 3976] +++ exited with 0 +++ [pid 3975] +++ exited with 0 +++ [pid 3974] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3974, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3977 ./strace-static-x86_64: Process 3977 attached [pid 3977] set_robust_list(0x555556e316e0, 24) = 0 [pid 3977] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3977] setpgid(0, 0) = 0 [pid 3977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3977] write(3, "1000", 4) = 4 [pid 3977] close(3) = 0 [pid 3977] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3977] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3977] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3977] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3978], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3978 [pid 3977] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3977] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3978 attached [pid 3978] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3978] memfd_create("syzkaller", 0) = 3 [pid 3978] ftruncate(3, 0) = 0 [pid 3978] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3978] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3978] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3978] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3978] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3977] <... futex resumed>) = 0 [pid 3977] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3977] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3978] <... futex resumed>) = 1 [pid 3978] pipe2([5, 6], 0) = 0 [pid 3978] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3977] <... futex resumed>) = 0 [pid 3977] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3977] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3978] <... futex resumed>) = 1 [pid 3978] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3978] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3977] <... futex resumed>) = 0 [pid 3977] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3977] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3978] <... futex resumed>) = 1 [pid 3978] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3977] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3977] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3977] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3977] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3977] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3977] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3979], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3979 [pid 3977] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3977] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3979 attached [pid 3979] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3979] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3978] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3978] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3978] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3979] <... write resumed>) = 8 [pid 3979] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3977] <... futex resumed>) = 0 [pid 3977] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3978] <... futex resumed>) = 0 [pid 3977] <... futex resumed>) = 1 [pid 3978] read(5, [pid 3977] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3978] <... read resumed>NULL, 0) = 0 [pid 3978] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3977] <... futex resumed>) = 0 [pid 3978] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3977] exit_group(0 [pid 3978] <... futex resumed>) = ? [pid 3977] <... exit_group resumed>) = ? [pid 3978] +++ exited with 0 +++ [pid 3979] <... futex resumed>) = ? [pid 3979] +++ exited with 0 +++ [pid 3977] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3977, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3980 ./strace-static-x86_64: Process 3980 attached [pid 3980] set_robust_list(0x555556e316e0, 24) = 0 [pid 3980] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3980] setpgid(0, 0) = 0 [pid 3980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3980] write(3, "1000", 4) = 4 [pid 3980] close(3) = 0 [pid 3980] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3980] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3980] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3980] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3981], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3981 [pid 3980] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3980] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3981 attached [pid 3981] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3981] memfd_create("syzkaller", 0) = 3 [pid 3981] ftruncate(3, 0) = 0 [pid 3981] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3981] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3981] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3981] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3981] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3980] <... futex resumed>) = 0 [pid 3980] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3980] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3981] <... futex resumed>) = 1 [pid 3981] pipe2([5, 6], 0) = 0 [pid 3981] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3980] <... futex resumed>) = 0 [pid 3980] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3980] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3981] <... futex resumed>) = 1 [pid 3981] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3981] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3980] <... futex resumed>) = 0 [pid 3980] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3980] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3981] <... futex resumed>) = 1 [pid 3981] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3980] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3980] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3980] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3980] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3980] clone(child_stack=0x7fbc2b5fd2f0, 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 3982 attached , parent_tid=[3982], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3982 [pid 3980] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3980] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3982] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3982] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3982] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3981] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3981] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3981] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3982] <... futex resumed>) = 1 [pid 3980] <... futex resumed>) = 0 [pid 3982] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3980] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3981] <... futex resumed>) = 0 [pid 3980] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3981] read(5, NULL, 0) = 0 [pid 3981] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3981] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3980] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3980] exit_group(0 [pid 3981] <... futex resumed>) = ? [pid 3980] <... exit_group resumed>) = ? [pid 3981] +++ exited with 0 +++ [pid 3982] <... futex resumed>) = ? [pid 3982] +++ exited with 0 +++ [pid 3980] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3980, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3983 ./strace-static-x86_64: Process 3983 attached [pid 3983] set_robust_list(0x555556e316e0, 24) = 0 [pid 3983] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3983] setpgid(0, 0) = 0 [pid 3983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3983] write(3, "1000", 4) = 4 [pid 3983] close(3) = 0 [pid 3983] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3983] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3983] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3983] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3984], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3984 [pid 3983] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3983] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3984 attached [pid 3984] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3984] memfd_create("syzkaller", 0) = 3 [pid 3984] ftruncate(3, 0) = 0 [pid 3984] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3984] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3984] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3984] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3984] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3983] <... futex resumed>) = 0 [pid 3983] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3983] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3984] <... futex resumed>) = 1 [pid 3984] pipe2([5, 6], 0) = 0 [pid 3984] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3983] <... futex resumed>) = 0 [pid 3983] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3984] <... futex resumed>) = 1 [pid 3984] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 3983] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3984] <... write resumed>) = 64568 [pid 3984] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3983] <... futex resumed>) = 0 [pid 3984] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 3983] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3984] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3983] <... futex resumed>) = 0 [pid 3983] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3983] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3983] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3983] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3983] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3985], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3985 ./strace-static-x86_64: Process 3985 attached [pid 3983] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3985] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 3983] <... futex resumed>) = 0 [pid 3985] <... set_robust_list resumed>) = 0 [pid 3983] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3985] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3984] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3984] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3985] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3984] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3985] <... futex resumed>) = 1 [pid 3983] <... futex resumed>) = 0 [pid 3985] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3983] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3984] <... futex resumed>) = 0 [pid 3984] read(5, [pid 3983] <... futex resumed>) = 1 [pid 3984] <... read resumed>NULL, 0) = 0 [pid 3983] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3984] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3983] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3984] <... futex resumed>) = 0 [pid 3983] exit_group(0 [pid 3985] <... futex resumed>) = ? [pid 3983] <... exit_group resumed>) = ? [pid 3984] +++ exited with 0 +++ [pid 3985] +++ exited with 0 +++ [pid 3983] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3983, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3986 ./strace-static-x86_64: Process 3986 attached [pid 3986] set_robust_list(0x555556e316e0, 24) = 0 [pid 3986] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3986] setpgid(0, 0) = 0 [pid 3986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3986] write(3, "1000", 4) = 4 [pid 3986] close(3) = 0 [pid 3986] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3986] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3986] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3986] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3987], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3987 [pid 3986] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3986] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3987 attached [pid 3987] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3987] memfd_create("syzkaller", 0) = 3 [pid 3987] ftruncate(3, 0) = 0 [pid 3987] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3987] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3987] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3987] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3987] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3986] <... futex resumed>) = 0 [pid 3986] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3986] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3987] <... futex resumed>) = 1 [pid 3987] pipe2([5, 6], 0) = 0 [pid 3987] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3986] <... futex resumed>) = 0 [pid 3986] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3986] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3987] <... futex resumed>) = 1 [pid 3987] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3987] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3986] <... futex resumed>) = 0 [pid 3987] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3986] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3987] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3986] <... futex resumed>) = 0 [pid 3987] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3986] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 3986] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3986] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3986] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3986] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3986] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3988], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3988 [pid 3986] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3986] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3988 attached [pid 3988] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3988] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3987] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3987] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3987] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3988] <... write resumed>) = 8 [pid 3988] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3986] <... futex resumed>) = 0 [pid 3986] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3987] <... futex resumed>) = 0 [pid 3986] <... futex resumed>) = 1 [pid 3987] read(5, [pid 3986] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3987] <... read resumed>NULL, 0) = 0 [pid 3987] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3986] <... futex resumed>) = 0 [pid 3987] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3986] exit_group(0 [pid 3987] <... futex resumed>) = ? [pid 3986] <... exit_group resumed>) = ? [pid 3987] +++ exited with 0 +++ [pid 3988] <... futex resumed>) = ? [pid 3988] +++ exited with 0 +++ [pid 3986] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3986, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3989 ./strace-static-x86_64: Process 3989 attached [pid 3989] set_robust_list(0x555556e316e0, 24) = 0 [pid 3989] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3989] setpgid(0, 0) = 0 [pid 3989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3989] write(3, "1000", 4) = 4 [pid 3989] close(3) = 0 [pid 3989] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3989] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3989] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3989] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3990], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3990 [pid 3989] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3989] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3990 attached [pid 3990] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3990] memfd_create("syzkaller", 0) = 3 [pid 3990] ftruncate(3, 0) = 0 [pid 3990] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3990] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3990] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3990] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3990] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3989] <... futex resumed>) = 0 [pid 3989] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3989] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3990] <... futex resumed>) = 1 [pid 3990] pipe2([5, 6], 0) = 0 [pid 3990] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3989] <... futex resumed>) = 0 [pid 3989] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3989] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3990] <... futex resumed>) = 1 [pid 3990] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3990] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3989] <... futex resumed>) = 0 [pid 3989] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3989] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3990] <... futex resumed>) = 1 [pid 3990] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3989] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3989] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3989] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3989] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3989] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3989] clone(child_stack=0x7fbc2b5fd2f0, 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 3991 attached [pid 3991] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3991] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3989] <... clone resumed>, parent_tid=[3991], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3991 [pid 3989] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3989] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3991] <... futex resumed>) = 0 [pid 3991] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3991] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3989] <... futex resumed>) = 0 [pid 3989] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3989] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3991] <... futex resumed>) = 1 [pid 3991] read(5, NULL, 0) = 0 [pid 3991] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3989] <... futex resumed>) = 0 [pid 3991] <... futex resumed>) = 1 [pid 3991] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3990] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3990] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3990] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3989] exit_group(0) = ? [pid 3990] <... futex resumed>) = ? [pid 3990] +++ exited with 0 +++ [pid 3991] <... futex resumed>) = ? [pid 3991] +++ exited with 0 +++ [pid 3989] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3989, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 3992 ./strace-static-x86_64: Process 3992 attached [pid 3992] set_robust_list(0x555556e316e0, 24) = 0 [pid 3992] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3992] setpgid(0, 0) = 0 [pid 3992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3992] write(3, "1000", 4) = 4 [pid 3992] close(3) = 0 [pid 3992] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3992] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3992] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3992] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3993], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3993 [pid 3992] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 3993 attached [pid 3992] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3993] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3993] memfd_create("syzkaller", 0) = 3 [pid 3993] ftruncate(3, 0) = 0 [pid 3993] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3993] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3993] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3993] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3993] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3992] <... futex resumed>) = 0 [pid 3992] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3992] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3993] pipe2([5, 6], 0) = 0 [pid 3993] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3992] <... futex resumed>) = 0 [pid 3992] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3992] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3993] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3993] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3992] <... futex resumed>) = 0 [pid 3993] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3992] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3992] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3993] <... futex resumed>) = 0 [pid 3993] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3992] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3992] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3992] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3992] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3992] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3992] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3992] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3992] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3994], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3994 [pid 3992] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3992] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3994 attached [pid 3994] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3994] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3993] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3993] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3993] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3994] <... write resumed>) = 8 [pid 3994] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3992] <... futex resumed>) = 0 [pid 3992] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3993] <... futex resumed>) = 0 [pid 3992] <... futex resumed>) = 1 [pid 3993] read(5, [pid 3992] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3993] <... read resumed>NULL, 0) = 0 [pid 3993] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3992] <... futex resumed>) = 0 [pid 3993] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3992] exit_group(0 [pid 3993] <... futex resumed>) = ? [pid 3992] <... exit_group resumed>) = ? [pid 3993] +++ exited with 0 +++ [pid 3994] <... futex resumed>) = ? [pid 3994] +++ exited with 0 +++ [pid 3992] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3992, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3995 attached , child_tidptr=0x555556e316d0) = 3995 [pid 3995] set_robust_list(0x555556e316e0, 24) = 0 [pid 3995] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3995] setpgid(0, 0) = 0 [pid 3995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3995] write(3, "1000", 4) = 4 [pid 3995] close(3) = 0 [pid 3995] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3995] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3995] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3995] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3996], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3996 [pid 3995] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3995] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3996 attached [pid 3996] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3996] memfd_create("syzkaller", 0) = 3 [pid 3996] ftruncate(3, 0) = 0 [pid 3996] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3996] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3996] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3996] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3996] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3995] <... futex resumed>) = 0 [pid 3995] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3995] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3996] <... futex resumed>) = 1 [pid 3996] pipe2([5, 6], 0) = 0 [pid 3996] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3995] <... futex resumed>) = 0 [pid 3995] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3995] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3996] <... futex resumed>) = 1 [pid 3996] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3996] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3995] <... futex resumed>) = 0 [pid 3995] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3995] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3996] <... futex resumed>) = 1 [pid 3996] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3995] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3995] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3995] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3995] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3995] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3995] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3995] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3997], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 3997 [pid 3995] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3995] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 3997 attached [pid 3997] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 3997] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 3996] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 3997] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3996] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3997] <... futex resumed>) = 1 [pid 3996] <... futex resumed>) = 0 [pid 3995] <... futex resumed>) = 0 [pid 3996] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3995] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3996] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3995] <... futex resumed>) = 0 [pid 3995] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3996] read(5, [pid 3997] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3996] <... read resumed>NULL, 0) = 0 [pid 3996] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3995] <... futex resumed>) = 0 [pid 3996] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3995] exit_group(0 [pid 3996] <... futex resumed>) = ? [pid 3995] <... exit_group resumed>) = ? [pid 3996] +++ exited with 0 +++ [pid 3997] <... futex resumed>) = ? [pid 3997] +++ exited with 0 +++ [pid 3995] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3995, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3998 attached , child_tidptr=0x555556e316d0) = 3998 [pid 3998] set_robust_list(0x555556e316e0, 24) = 0 [pid 3998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3998] setpgid(0, 0) = 0 [pid 3998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3998] write(3, "1000", 4) = 4 [pid 3998] close(3) = 0 [pid 3998] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3998] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 3998] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3998] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[3999], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 3999 [pid 3998] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3998] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 3999 attached [pid 3999] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 3999] memfd_create("syzkaller", 0) = 3 [pid 3999] ftruncate(3, 0) = 0 [pid 3999] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 3999] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 3999] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3999] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3999] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3998] <... futex resumed>) = 0 [pid 3998] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3998] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3999] <... futex resumed>) = 1 [pid 3999] pipe2([5, 6], 0) = 0 [pid 3999] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3998] <... futex resumed>) = 0 [pid 3998] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3998] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3999] <... futex resumed>) = 1 [pid 3999] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 3999] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 3998] <... futex resumed>) = 0 [pid 3998] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3998] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3999] <... futex resumed>) = 1 [pid 3999] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 3998] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 3998] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 3998] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3998] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 3998] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3998] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4000], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4000 [pid 3998] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3998] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4000 attached [pid 4000] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4000] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 3999] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4000] <... write resumed>) = 8 [pid 3999] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3999] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4000] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3998] <... futex resumed>) = 0 [pid 3998] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3999] <... futex resumed>) = 0 [pid 3998] <... futex resumed>) = 1 [pid 3999] read(5, [pid 3998] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3999] <... read resumed>NULL, 0) = 0 [pid 3999] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3998] <... futex resumed>) = 0 [pid 3999] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3998] exit_group(0 [pid 3999] <... futex resumed>) = ? [pid 3998] <... exit_group resumed>) = ? [pid 3999] +++ exited with 0 +++ [pid 4000] <... futex resumed>) = ? [pid 4000] +++ exited with 0 +++ [pid 3998] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3998, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4001 attached , child_tidptr=0x555556e316d0) = 4001 [pid 4001] set_robust_list(0x555556e316e0, 24) = 0 [pid 4001] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4001] setpgid(0, 0) = 0 [pid 4001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4001] write(3, "1000", 4) = 4 [pid 4001] close(3) = 0 [pid 4001] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4001] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4001] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4001] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4002], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4002 [pid 4001] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4001] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4002 attached [pid 4002] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4002] memfd_create("syzkaller", 0) = 3 [pid 4002] ftruncate(3, 0) = 0 [pid 4002] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4002] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4002] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4002] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4002] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4001] <... futex resumed>) = 0 [pid 4001] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4002] pipe2( [pid 4001] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4002] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4002] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4001] <... futex resumed>) = 0 [pid 4002] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4001] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4002] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4001] <... futex resumed>) = 0 [pid 4002] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4001] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4002] <... write resumed>) = 64568 [pid 4002] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4001] <... futex resumed>) = 0 [pid 4001] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4001] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4002] <... futex resumed>) = 1 [pid 4002] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4001] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4001] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4001] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4001] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4001] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4003], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4003 [pid 4001] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4001] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4003 attached [pid 4003] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4003] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4003] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4001] <... futex resumed>) = 0 [pid 4001] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4001] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4003] <... futex resumed>) = 1 [pid 4003] read(5, NULL, 0) = 0 [pid 4003] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4001] <... futex resumed>) = 0 [pid 4003] <... futex resumed>) = 1 [pid 4003] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4002] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4002] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4002] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4001] exit_group(0 [pid 4002] <... futex resumed>) = ? [pid 4001] <... exit_group resumed>) = ? [pid 4003] <... futex resumed>) = ? [pid 4002] +++ exited with 0 +++ [pid 4003] +++ exited with 0 +++ [pid 4001] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4001, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4004 ./strace-static-x86_64: Process 4004 attached [pid 4004] set_robust_list(0x555556e316e0, 24) = 0 [pid 4004] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4004] setpgid(0, 0) = 0 [pid 4004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4004] write(3, "1000", 4) = 4 [pid 4004] close(3) = 0 [pid 4004] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4004] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4004] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4004] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4005], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4005 [pid 4004] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4004] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4005 attached [pid 4005] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4005] memfd_create("syzkaller", 0) = 3 [pid 4005] ftruncate(3, 0) = 0 [pid 4005] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4005] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4005] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4005] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4005] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4004] <... futex resumed>) = 0 [pid 4004] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4004] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4005] <... futex resumed>) = 1 [pid 4005] pipe2([5, 6], 0) = 0 [pid 4005] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4004] <... futex resumed>) = 0 [pid 4004] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4004] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4005] <... futex resumed>) = 1 [pid 4005] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4005] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4004] <... futex resumed>) = 0 [pid 4004] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4004] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4005] <... futex resumed>) = 1 [pid 4005] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4004] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4004] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4004] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4004] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4004] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4004] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4004] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4006], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4006 [pid 4004] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4004] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4006 attached [pid 4006] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4006] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4006] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4004] <... futex resumed>) = 0 [pid 4004] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4004] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4006] <... futex resumed>) = 1 [pid 4006] read(5, NULL, 0) = 0 [pid 4006] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4004] <... futex resumed>) = 0 [pid 4006] <... futex resumed>) = 1 [pid 4006] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4005] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4005] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4005] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4004] exit_group(0 [pid 4005] <... futex resumed>) = ? [pid 4004] <... exit_group resumed>) = ? [pid 4005] +++ exited with 0 +++ [pid 4006] <... futex resumed>) = ? [pid 4006] +++ exited with 0 +++ [pid 4004] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4004, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4007 ./strace-static-x86_64: Process 4007 attached [pid 4007] set_robust_list(0x555556e316e0, 24) = 0 [pid 4007] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4007] setpgid(0, 0) = 0 [pid 4007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4007] write(3, "1000", 4) = 4 [pid 4007] close(3) = 0 [pid 4007] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4007] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4007] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4007] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4008], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4008 [pid 4007] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4007] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4008 attached [pid 4008] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4008] memfd_create("syzkaller", 0) = 3 [pid 4008] ftruncate(3, 0) = 0 [pid 4008] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4008] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4008] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4008] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4008] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4007] <... futex resumed>) = 0 [pid 4007] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4007] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4008] <... futex resumed>) = 1 [pid 4008] pipe2([5, 6], 0) = 0 [pid 4008] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4007] <... futex resumed>) = 0 [pid 4007] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4007] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4008] <... futex resumed>) = 1 [pid 4008] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4008] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4007] <... futex resumed>) = 0 [pid 4007] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4007] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4008] <... futex resumed>) = 1 [pid 4008] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4007] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4007] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4007] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4007] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4007] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4007] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4007] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4009], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4009 [pid 4007] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4007] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4009 attached [pid 4009] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4009] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4008] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4008] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4008] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4009] <... write resumed>) = 8 [pid 4009] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4007] <... futex resumed>) = 0 [pid 4007] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4008] <... futex resumed>) = 0 [pid 4007] <... futex resumed>) = 1 [pid 4008] read(5, [pid 4007] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4008] <... read resumed>NULL, 0) = 0 [pid 4008] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4007] <... futex resumed>) = 0 [pid 4008] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4007] exit_group(0 [pid 4008] <... futex resumed>) = ? [pid 4007] <... exit_group resumed>) = ? [pid 4008] +++ exited with 0 +++ [pid 4009] <... futex resumed>) = ? [pid 4009] +++ exited with 0 +++ [pid 4007] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4007, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4010 attached , child_tidptr=0x555556e316d0) = 4010 [pid 4010] set_robust_list(0x555556e316e0, 24) = 0 [pid 4010] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4010] setpgid(0, 0) = 0 [pid 4010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4010] write(3, "1000", 4) = 4 [pid 4010] close(3) = 0 [pid 4010] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4010] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4010] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4010] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4011], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4011 [pid 4010] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4010] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4011 attached [pid 4011] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4011] memfd_create("syzkaller", 0) = 3 [pid 4011] ftruncate(3, 0) = 0 [pid 4011] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4011] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4011] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4011] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4011] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4010] <... futex resumed>) = 0 [pid 4010] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4010] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4011] <... futex resumed>) = 1 [pid 4011] pipe2([5, 6], 0) = 0 [pid 4011] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4010] <... futex resumed>) = 0 [pid 4010] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4010] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4011] <... futex resumed>) = 1 [pid 4011] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4011] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4010] <... futex resumed>) = 0 [pid 4010] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4010] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4011] <... futex resumed>) = 1 [pid 4011] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4010] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4010] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4010] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4010] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4010] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4010] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4010] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4012], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4012 [pid 4010] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4010] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4012 attached [pid 4012] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4012] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4011] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4011] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4011] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4012] <... write resumed>) = 8 [pid 4012] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4010] <... futex resumed>) = 0 [pid 4010] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4011] <... futex resumed>) = 0 [pid 4010] <... futex resumed>) = 1 [pid 4011] read(5, [pid 4010] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4011] <... read resumed>NULL, 0) = 0 [pid 4011] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4010] <... futex resumed>) = 0 [pid 4011] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4010] exit_group(0 [pid 4011] <... futex resumed>) = ? [pid 4010] <... exit_group resumed>) = ? [pid 4011] +++ exited with 0 +++ [pid 4012] <... futex resumed>) = ? [pid 4012] +++ exited with 0 +++ [pid 4010] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4010, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4013 ./strace-static-x86_64: Process 4013 attached [pid 4013] set_robust_list(0x555556e316e0, 24) = 0 [pid 4013] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4013] setpgid(0, 0) = 0 [pid 4013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4013] write(3, "1000", 4) = 4 [pid 4013] close(3) = 0 [pid 4013] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4013] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4013] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4013] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4014], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4014 [pid 4013] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4013] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4014 attached [pid 4014] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4014] memfd_create("syzkaller", 0) = 3 [pid 4014] ftruncate(3, 0) = 0 [pid 4014] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4014] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4014] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4014] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4014] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4013] <... futex resumed>) = 0 [pid 4013] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4013] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4014] <... futex resumed>) = 1 [pid 4014] pipe2([5, 6], 0) = 0 [pid 4014] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4013] <... futex resumed>) = 0 [pid 4013] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4013] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4014] <... futex resumed>) = 1 [pid 4014] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4014] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4013] <... futex resumed>) = 0 [pid 4014] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4013] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4014] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4013] <... futex resumed>) = 0 [pid 4014] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4013] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4013] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4013] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4013] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4013] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4015], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4015 [pid 4013] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4013] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4015 attached [pid 4015] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4015] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4015] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4013] <... futex resumed>) = 0 [pid 4013] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4013] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4015] <... futex resumed>) = 1 [pid 4015] read(5, NULL, 0) = 0 [pid 4015] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4013] <... futex resumed>) = 0 [pid 4015] <... futex resumed>) = 1 [pid 4015] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4014] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4014] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4014] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4013] exit_group(0) = ? [pid 4014] <... futex resumed>) = ? [pid 4014] +++ exited with 0 +++ [pid 4015] <... futex resumed>) = ? [pid 4015] +++ exited with 0 +++ [pid 4013] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4013, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4016 ./strace-static-x86_64: Process 4016 attached [pid 4016] set_robust_list(0x555556e316e0, 24) = 0 [pid 4016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4016] setpgid(0, 0) = 0 [pid 4016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4016] write(3, "1000", 4) = 4 [pid 4016] close(3) = 0 [pid 4016] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4016] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4016] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4016] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4017], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4017 [pid 4016] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4016] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4017 attached [pid 4017] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4017] memfd_create("syzkaller", 0) = 3 [pid 4017] ftruncate(3, 0) = 0 [pid 4017] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4017] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4017] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4017] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4017] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4016] <... futex resumed>) = 0 [pid 4016] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4016] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4017] pipe2([5, 6], 0) = 0 [pid 4017] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4016] <... futex resumed>) = 0 [pid 4016] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4016] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4017] <... futex resumed>) = 1 [pid 4017] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4017] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4016] <... futex resumed>) = 0 [pid 4016] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4016] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4017] <... futex resumed>) = 1 [pid 4017] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4016] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4016] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4016] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4016] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4016] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4016] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4016] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4018], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4018 [pid 4016] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4016] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4018 attached [pid 4018] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4018] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4017] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4017] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4017] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4018] <... write resumed>) = 8 [pid 4018] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4016] <... futex resumed>) = 0 [pid 4016] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4017] <... futex resumed>) = 0 [pid 4016] <... futex resumed>) = 1 [pid 4017] read(5, [pid 4016] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4017] <... read resumed>NULL, 0) = 0 [pid 4017] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4016] <... futex resumed>) = 0 [pid 4017] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4016] exit_group(0 [pid 4017] <... futex resumed>) = ? [pid 4016] <... exit_group resumed>) = ? [pid 4017] +++ exited with 0 +++ [pid 4018] <... futex resumed>) = ? [pid 4018] +++ exited with 0 +++ [pid 4016] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4016, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4019 ./strace-static-x86_64: Process 4019 attached [pid 4019] set_robust_list(0x555556e316e0, 24) = 0 [pid 4019] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4019] setpgid(0, 0) = 0 [pid 4019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4019] write(3, "1000", 4) = 4 [pid 4019] close(3) = 0 [pid 4019] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4019] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4019] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4019] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4020], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4020 [pid 4019] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4019] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4020 attached [pid 4020] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4020] memfd_create("syzkaller", 0) = 3 [pid 4020] ftruncate(3, 0) = 0 [pid 4020] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4020] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4020] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4020] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4020] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4019] <... futex resumed>) = 0 [pid 4019] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4019] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4020] <... futex resumed>) = 1 [pid 4020] pipe2([5, 6], 0) = 0 [pid 4020] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4019] <... futex resumed>) = 0 [pid 4020] <... futex resumed>) = 1 [pid 4019] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4019] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4020] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4020] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4019] <... futex resumed>) = 0 [pid 4019] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4019] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4020] <... futex resumed>) = 1 [pid 4020] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4019] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4019] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4019] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4019] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4019] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4021], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4021 [pid 4019] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4019] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4021 attached [pid 4021] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4021] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4020] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4020] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4020] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4021] <... write resumed>) = 8 [pid 4021] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4019] <... futex resumed>) = 0 [pid 4019] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4020] <... futex resumed>) = 0 [pid 4019] <... futex resumed>) = 1 [pid 4020] read(5, [pid 4019] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4020] <... read resumed>NULL, 0) = 0 [pid 4020] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4019] <... futex resumed>) = 0 [pid 4020] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4019] exit_group(0 [pid 4020] <... futex resumed>) = ? [pid 4019] <... exit_group resumed>) = ? [pid 4020] +++ exited with 0 +++ [pid 4021] <... futex resumed>) = ? [pid 4021] +++ exited with 0 +++ [pid 4019] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4019, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4022 ./strace-static-x86_64: Process 4022 attached [pid 4022] set_robust_list(0x555556e316e0, 24) = 0 [pid 4022] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4022] setpgid(0, 0) = 0 [pid 4022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4022] write(3, "1000", 4) = 4 [pid 4022] close(3) = 0 [pid 4022] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4022] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4022] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4022] clone(child_stack=0x7fbc2b61e2f0, 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 4023 attached , parent_tid=[4023], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4023 [pid 4022] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4023] set_robust_list(0x7fbc2b61e9e0, 24 [pid 4022] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4023] <... set_robust_list resumed>) = 0 [pid 4023] memfd_create("syzkaller", 0) = 3 [pid 4023] ftruncate(3, 0) = 0 [pid 4023] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4023] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4023] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4023] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4023] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4022] <... futex resumed>) = 0 [pid 4023] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4022] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4023] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4022] <... futex resumed>) = 0 [pid 4023] pipe2( [pid 4022] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4023] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4023] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4022] <... futex resumed>) = 0 [pid 4023] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4022] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4023] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4022] <... futex resumed>) = 0 [pid 4023] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4022] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4023] <... write resumed>) = 64568 [pid 4023] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4022] <... futex resumed>) = 0 [pid 4022] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4023] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4022] <... futex resumed>) = 0 [pid 4022] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4022] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4022] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4022] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4022] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4022] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4024], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4024 [pid 4022] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4022] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4024 attached [pid 4024] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4024] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4023] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4023] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4023] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4024] <... write resumed>) = 8 [pid 4024] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4022] <... futex resumed>) = 0 [pid 4022] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4023] <... futex resumed>) = 0 [pid 4022] <... futex resumed>) = 1 [pid 4023] read(5, [pid 4022] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4023] <... read resumed>NULL, 0) = 0 [pid 4023] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4022] <... futex resumed>) = 0 [pid 4023] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4022] exit_group(0 [pid 4023] <... futex resumed>) = ? [pid 4022] <... exit_group resumed>) = ? [pid 4023] +++ exited with 0 +++ [pid 4024] <... futex resumed>) = ? [pid 4024] +++ exited with 0 +++ [pid 4022] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4022, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4025 ./strace-static-x86_64: Process 4025 attached [pid 4025] set_robust_list(0x555556e316e0, 24) = 0 [pid 4025] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4025] setpgid(0, 0) = 0 [pid 4025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4025] write(3, "1000", 4) = 4 [pid 4025] close(3) = 0 [pid 4025] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4025] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4025] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4025] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4026], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4026 [pid 4025] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4025] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4026 attached [pid 4026] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4026] memfd_create("syzkaller", 0) = 3 [pid 4026] ftruncate(3, 0) = 0 [pid 4026] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4026] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4026] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4026] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4026] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4025] <... futex resumed>) = 0 [pid 4025] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4025] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4026] <... futex resumed>) = 1 [pid 4026] pipe2([5, 6], 0) = 0 [pid 4026] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4025] <... futex resumed>) = 0 [pid 4025] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4025] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4026] <... futex resumed>) = 1 [pid 4026] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4026] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4025] <... futex resumed>) = 0 [pid 4025] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4025] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4026] <... futex resumed>) = 1 [pid 4026] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4025] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4025] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4025] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4025] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4025] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4025] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4025] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4027], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4027 [pid 4025] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4025] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4027 attached [pid 4027] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4027] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4026] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4026] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4026] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4027] <... write resumed>) = 8 [pid 4027] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4025] <... futex resumed>) = 0 [pid 4027] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4025] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4026] <... futex resumed>) = 0 [pid 4025] <... futex resumed>) = 1 [pid 4026] read(5, [pid 4025] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4026] <... read resumed>NULL, 0) = 0 [pid 4026] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4025] <... futex resumed>) = 0 [pid 4026] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4025] exit_group(0 [pid 4027] <... futex resumed>) = ? [pid 4026] <... futex resumed>) = ? [pid 4025] <... exit_group resumed>) = ? [pid 4027] +++ exited with 0 +++ [pid 4026] +++ exited with 0 +++ [pid 4025] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4025, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4028 attached , child_tidptr=0x555556e316d0) = 4028 [pid 4028] set_robust_list(0x555556e316e0, 24) = 0 [pid 4028] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4028] setpgid(0, 0) = 0 [pid 4028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4028] write(3, "1000", 4) = 4 [pid 4028] close(3) = 0 [pid 4028] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4028] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4028] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4028] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4029], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4029 [pid 4028] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4028] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4029 attached [pid 4029] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4029] memfd_create("syzkaller", 0) = 3 [pid 4029] ftruncate(3, 0) = 0 [pid 4029] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4029] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4029] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4029] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4029] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4028] <... futex resumed>) = 0 [pid 4028] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4028] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4029] <... futex resumed>) = 1 [pid 4029] pipe2([5, 6], 0) = 0 [pid 4029] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4028] <... futex resumed>) = 0 [pid 4028] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4029] <... futex resumed>) = 1 [pid 4028] <... futex resumed>) = 0 [pid 4028] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4029] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4029] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4028] <... futex resumed>) = 0 [pid 4028] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4028] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4029] <... futex resumed>) = 1 [pid 4029] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4028] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4028] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4028] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4028] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4028] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4028] clone(child_stack=0x7fbc2b5fd2f0, 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 4030 attached , parent_tid=[4030], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4030 [pid 4030] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4028] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4030] <... set_robust_list resumed>) = 0 [pid 4028] <... futex resumed>) = 0 [pid 4030] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4028] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4029] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4029] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4029] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4030] <... write resumed>) = 8 [pid 4030] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4028] <... futex resumed>) = 0 [pid 4030] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4028] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4029] <... futex resumed>) = 0 [pid 4028] <... futex resumed>) = 1 [pid 4029] read(5, [pid 4028] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4029] <... read resumed>NULL, 0) = 0 [pid 4029] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4028] <... futex resumed>) = 0 [pid 4029] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4028] exit_group(0 [pid 4029] <... futex resumed>) = ? [pid 4028] <... exit_group resumed>) = ? [pid 4030] <... futex resumed>) = ? [pid 4029] +++ exited with 0 +++ [pid 4030] +++ exited with 0 +++ [pid 4028] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4028, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4031 ./strace-static-x86_64: Process 4031 attached [pid 4031] set_robust_list(0x555556e316e0, 24) = 0 [pid 4031] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4031] setpgid(0, 0) = 0 [pid 4031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4031] write(3, "1000", 4) = 4 [pid 4031] close(3) = 0 [pid 4031] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4031] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4031] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4031] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4032], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4032 [pid 4031] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 4032 attached [pid 4032] set_robust_list(0x7fbc2b61e9e0, 24 [pid 4031] <... futex resumed>) = 0 [pid 4032] <... set_robust_list resumed>) = 0 [pid 4032] memfd_create("syzkaller", 0) = 3 [pid 4032] ftruncate(3, 0) = 0 [pid 4032] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4032] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4032] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4032] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4032] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4032] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4031] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4031] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4032] <... futex resumed>) = 0 [pid 4032] pipe2([5, 6], 0) = 0 [pid 4031] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4032] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4031] <... futex resumed>) = 0 [pid 4031] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4032] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4031] <... futex resumed>) = 0 [pid 4031] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4032] <... write resumed>) = 64568 [pid 4032] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4031] <... futex resumed>) = 0 [pid 4031] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4031] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4032] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4031] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4031] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4031] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4031] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4031] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4031] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4031] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4033], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4033 [pid 4031] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4031] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4033 attached [pid 4033] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4033] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4032] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4033] <... write resumed>) = 8 [pid 4032] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4033] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4032] <... futex resumed>) = 0 [pid 4032] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4031] <... futex resumed>) = 0 [pid 4031] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4033] <... futex resumed>) = 1 [pid 4033] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4032] <... futex resumed>) = 0 [pid 4031] <... futex resumed>) = 1 [pid 4032] read(5, [pid 4031] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4032] <... read resumed>NULL, 0) = 0 [pid 4032] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4031] <... futex resumed>) = 0 [pid 4032] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4031] exit_group(0 [pid 4032] <... futex resumed>) = ? [pid 4031] <... exit_group resumed>) = ? [pid 4033] <... futex resumed>) = ? [pid 4032] +++ exited with 0 +++ [pid 4033] +++ exited with 0 +++ [pid 4031] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4031, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4034 ./strace-static-x86_64: Process 4034 attached [pid 4034] set_robust_list(0x555556e316e0, 24) = 0 [pid 4034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4034] setpgid(0, 0) = 0 [pid 4034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4034] write(3, "1000", 4) = 4 [pid 4034] close(3) = 0 [pid 4034] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4034] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4034] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4034] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4035], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4035 [pid 4034] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4034] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4035 attached [pid 4035] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4035] memfd_create("syzkaller", 0) = 3 [pid 4035] ftruncate(3, 0) = 0 [pid 4035] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4035] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4035] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4035] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4035] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4034] <... futex resumed>) = 0 [pid 4034] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4034] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4035] <... futex resumed>) = 1 [pid 4035] pipe2([5, 6], 0) = 0 [pid 4035] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4034] <... futex resumed>) = 0 [pid 4034] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4034] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4035] <... futex resumed>) = 1 [pid 4035] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4035] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4034] <... futex resumed>) = 0 [pid 4034] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4034] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4035] <... futex resumed>) = 1 [pid 4035] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4034] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4034] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4034] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4034] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4034] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4034] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4034] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4036], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4036 [pid 4034] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4034] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4036 attached [pid 4036] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4036] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4035] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4035] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4035] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4036] <... write resumed>) = 8 [pid 4036] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4034] <... futex resumed>) = 0 [pid 4034] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4035] <... futex resumed>) = 0 [pid 4034] <... futex resumed>) = 1 [pid 4035] read(5, [pid 4034] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4035] <... read resumed>NULL, 0) = 0 [pid 4035] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4034] <... futex resumed>) = 0 [pid 4035] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4034] exit_group(0 [pid 4035] <... futex resumed>) = ? [pid 4034] <... exit_group resumed>) = ? [pid 4035] +++ exited with 0 +++ [pid 4036] <... futex resumed>) = ? [pid 4036] +++ exited with 0 +++ [pid 4034] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4034, si_uid=0, si_status=0, si_utime=2, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4037 ./strace-static-x86_64: Process 4037 attached [pid 4037] set_robust_list(0x555556e316e0, 24) = 0 [pid 4037] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4037] setpgid(0, 0) = 0 [pid 4037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4037] write(3, "1000", 4) = 4 [pid 4037] close(3) = 0 [pid 4037] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4037] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4037] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4037] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4038], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4038 [pid 4037] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4037] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4038 attached [pid 4038] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4038] memfd_create("syzkaller", 0) = 3 [pid 4038] ftruncate(3, 0) = 0 [pid 4038] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4038] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4038] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4038] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4038] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4037] <... futex resumed>) = 0 [pid 4037] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4038] pipe2( [pid 4037] <... futex resumed>) = 0 [pid 4037] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4038] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4038] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4037] <... futex resumed>) = 0 [pid 4038] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4037] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4038] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4037] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4038] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4038] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4037] <... futex resumed>) = 0 [pid 4037] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4037] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4038] <... futex resumed>) = 1 [pid 4038] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4037] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4037] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4037] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4037] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4037] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4037] clone(child_stack=0x7fbc2b5fd2f0, 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 4039 attached , parent_tid=[4039], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4039 [pid 4039] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4037] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4039] <... set_robust_list resumed>) = 0 [pid 4037] <... futex resumed>) = 0 [pid 4039] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4037] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4039] <... write resumed>) = 8 [pid 4039] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4039] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4038] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4037] <... futex resumed>) = 0 [pid 4038] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4037] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4038] <... futex resumed>) = 0 [pid 4038] read(5, [pid 4037] <... futex resumed>) = 0 [pid 4038] <... read resumed>NULL, 0) = 0 [pid 4038] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4037] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4038] <... futex resumed>) = 0 [pid 4038] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4037] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4037] exit_group(0 [pid 4038] <... futex resumed>) = ? [pid 4037] <... exit_group resumed>) = ? [pid 4039] <... futex resumed>) = ? [pid 4038] +++ exited with 0 +++ [pid 4039] +++ exited with 0 +++ [pid 4037] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4037, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4040 attached , child_tidptr=0x555556e316d0) = 4040 [pid 4040] set_robust_list(0x555556e316e0, 24) = 0 [pid 4040] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4040] setpgid(0, 0) = 0 [pid 4040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4040] write(3, "1000", 4) = 4 [pid 4040] close(3) = 0 [pid 4040] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4040] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4040] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4040] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4041], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4041 [pid 4040] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4040] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4041 attached [pid 4041] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4041] memfd_create("syzkaller", 0) = 3 [pid 4041] ftruncate(3, 0) = 0 [pid 4041] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4041] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4041] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4041] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4041] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4040] <... futex resumed>) = 0 [pid 4040] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4040] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4041] <... futex resumed>) = 1 [pid 4041] pipe2([5, 6], 0) = 0 [pid 4041] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4040] <... futex resumed>) = 0 [pid 4040] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4040] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4041] <... futex resumed>) = 1 [pid 4041] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4041] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4040] <... futex resumed>) = 0 [pid 4040] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4040] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4041] <... futex resumed>) = 1 [pid 4041] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4040] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4040] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4040] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4040] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4040] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4042], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4042 ./strace-static-x86_64: Process 4042 attached [pid 4040] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4040] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4042] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4042] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4041] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4042] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4040] <... futex resumed>) = 0 [pid 4042] read(5, [pid 4040] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4042] <... read resumed>NULL, 0) = 0 [pid 4040] <... futex resumed>) = 0 [pid 4042] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4040] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4042] <... futex resumed>) = 0 [pid 4040] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4042] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4041] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4041] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4040] exit_group(0 [pid 4041] <... futex resumed>) = ? [pid 4040] <... exit_group resumed>) = ? [pid 4041] +++ exited with 0 +++ [pid 4042] <... futex resumed>) = ? [pid 4042] +++ exited with 0 +++ [pid 4040] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4040, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4043 attached , child_tidptr=0x555556e316d0) = 4043 [pid 4043] set_robust_list(0x555556e316e0, 24) = 0 [pid 4043] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4043] setpgid(0, 0) = 0 [pid 4043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4043] write(3, "1000", 4) = 4 [pid 4043] close(3) = 0 [pid 4043] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4043] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4043] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4043] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4044], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4044 [pid 4043] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4043] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4044 attached [pid 4044] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4044] memfd_create("syzkaller", 0) = 3 [pid 4044] ftruncate(3, 0) = 0 [pid 4044] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4044] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4044] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4044] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4044] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4043] <... futex resumed>) = 0 [pid 4043] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4043] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4044] <... futex resumed>) = 1 [pid 4044] pipe2([5, 6], 0) = 0 [pid 4044] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4043] <... futex resumed>) = 0 [pid 4043] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4043] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4044] <... futex resumed>) = 1 [pid 4044] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4044] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4043] <... futex resumed>) = 0 [pid 4043] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4043] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4044] <... futex resumed>) = 1 [pid 4044] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4043] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4043] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4043] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4043] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4043] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4043] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4043] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4045], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4045 [pid 4043] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4043] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4045 attached [pid 4045] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4045] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4045] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4043] <... futex resumed>) = 0 [pid 4044] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4043] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4044] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4043] <... futex resumed>) = 0 [pid 4044] <... futex resumed>) = 0 [pid 4043] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4044] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4045] <... futex resumed>) = 1 [pid 4045] read(5, NULL, 0) = 0 [pid 4045] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4043] <... futex resumed>) = 0 [pid 4043] exit_group(0) = ? [pid 4044] <... futex resumed>) = ? [pid 4045] <... futex resumed>) = ? [pid 4044] +++ exited with 0 +++ [pid 4045] +++ exited with 0 +++ [pid 4043] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4043, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4046 ./strace-static-x86_64: Process 4046 attached [pid 4046] set_robust_list(0x555556e316e0, 24) = 0 [pid 4046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4046] setpgid(0, 0) = 0 [pid 4046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4046] write(3, "1000", 4) = 4 [pid 4046] close(3) = 0 [pid 4046] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4046] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4046] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4046] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4047], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4047 [pid 4046] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4046] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4047 attached [pid 4047] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4047] memfd_create("syzkaller", 0) = 3 [pid 4047] ftruncate(3, 0) = 0 [pid 4047] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4047] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4047] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4047] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4047] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4046] <... futex resumed>) = 0 [pid 4046] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4046] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4047] <... futex resumed>) = 1 [pid 4047] pipe2([5, 6], 0) = 0 [pid 4047] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4046] <... futex resumed>) = 0 [pid 4046] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4046] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4047] <... futex resumed>) = 1 [pid 4047] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4047] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4046] <... futex resumed>) = 0 [pid 4046] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4046] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4047] <... futex resumed>) = 1 [pid 4047] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4046] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4046] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4046] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4046] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4046] clone(child_stack=0x7fbc2b5fd2f0, 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 4048 attached , parent_tid=[4048], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4048 [pid 4048] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4046] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4048] <... set_robust_list resumed>) = 0 [pid 4048] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4046] <... futex resumed>) = 0 [pid 4046] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4048] <... write resumed>) = 8 [pid 4048] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4048] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4046] <... futex resumed>) = 0 [pid 4046] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4048] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4046] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4048] read(5, NULL, 0) = 0 [pid 4048] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4046] <... futex resumed>) = 0 [pid 4048] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4047] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4047] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4047] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4046] exit_group(0 [pid 4048] <... futex resumed>) = ? [pid 4047] <... futex resumed>) = ? [pid 4046] <... exit_group resumed>) = ? [pid 4047] +++ exited with 0 +++ [pid 4048] +++ exited with 0 +++ [pid 4046] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4046, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4049 ./strace-static-x86_64: Process 4049 attached [pid 4049] set_robust_list(0x555556e316e0, 24) = 0 [pid 4049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4049] setpgid(0, 0) = 0 [pid 4049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4049] write(3, "1000", 4) = 4 [pid 4049] close(3) = 0 [pid 4049] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4049] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4049] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4049] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4050], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4050 [pid 4049] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4049] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4050 attached [pid 4050] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4050] memfd_create("syzkaller", 0) = 3 [pid 4050] ftruncate(3, 0) = 0 [pid 4050] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4050] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4050] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4050] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4050] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4049] <... futex resumed>) = 0 [pid 4049] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4049] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4050] <... futex resumed>) = 1 [pid 4050] pipe2([5, 6], 0) = 0 [pid 4050] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4049] <... futex resumed>) = 0 [pid 4049] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4049] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4050] <... futex resumed>) = 1 [pid 4050] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4050] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4049] <... futex resumed>) = 0 [pid 4049] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4049] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4050] <... futex resumed>) = 1 [pid 4050] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4049] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4049] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4049] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4049] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4049] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4051], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4051 [pid 4049] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4049] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4051 attached [pid 4051] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4051] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4050] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4050] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4050] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4051] <... write resumed>) = 8 [pid 4051] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4049] <... futex resumed>) = 0 [pid 4049] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4050] <... futex resumed>) = 0 [pid 4049] <... futex resumed>) = 1 [pid 4050] read(5, [pid 4049] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4050] <... read resumed>NULL, 0) = 0 [pid 4050] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4049] <... futex resumed>) = 0 [pid 4050] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4049] exit_group(0 [pid 4050] <... futex resumed>) = ? [pid 4049] <... exit_group resumed>) = ? [pid 4050] +++ exited with 0 +++ [pid 4051] <... futex resumed>) = ? [pid 4051] +++ exited with 0 +++ [pid 4049] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4049, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4052 ./strace-static-x86_64: Process 4052 attached [pid 4052] set_robust_list(0x555556e316e0, 24) = 0 [pid 4052] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4052] setpgid(0, 0) = 0 [pid 4052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4052] write(3, "1000", 4) = 4 [pid 4052] close(3) = 0 [pid 4052] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4052] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4052] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4052] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4053], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4053 [pid 4052] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4052] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4053 attached [pid 4053] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4053] memfd_create("syzkaller", 0) = 3 [pid 4053] ftruncate(3, 0) = 0 [pid 4053] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4053] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4053] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4053] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4053] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4052] <... futex resumed>) = 0 [pid 4052] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4052] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4053] <... futex resumed>) = 1 [pid 4053] pipe2([5, 6], 0) = 0 [pid 4053] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4052] <... futex resumed>) = 0 [pid 4052] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4052] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4053] <... futex resumed>) = 1 [pid 4053] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4053] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4052] <... futex resumed>) = 0 [pid 4052] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4052] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4053] <... futex resumed>) = 1 [pid 4053] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4052] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4052] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4052] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4052] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4052] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4054], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4054 [pid 4052] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4052] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4054 attached [pid 4054] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4054] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4053] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4054] <... write resumed>) = 8 [pid 4053] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4053] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4054] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4052] <... futex resumed>) = 0 [pid 4052] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4053] <... futex resumed>) = 0 [pid 4052] <... futex resumed>) = 1 [pid 4053] read(5, [pid 4052] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4053] <... read resumed>NULL, 0) = 0 [pid 4053] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4052] <... futex resumed>) = 0 [pid 4053] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4052] exit_group(0 [pid 4053] <... futex resumed>) = ? [pid 4052] <... exit_group resumed>) = ? [pid 4053] +++ exited with 0 +++ [pid 4054] <... futex resumed>) = ? [pid 4054] +++ exited with 0 +++ [pid 4052] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4052, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4055 ./strace-static-x86_64: Process 4055 attached [pid 4055] set_robust_list(0x555556e316e0, 24) = 0 [pid 4055] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4055] setpgid(0, 0) = 0 [pid 4055] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4055] write(3, "1000", 4) = 4 [pid 4055] close(3) = 0 [pid 4055] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4055] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4055] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4055] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4056], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4056 [pid 4055] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4055] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4056 attached [pid 4056] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4056] memfd_create("syzkaller", 0) = 3 [pid 4056] ftruncate(3, 0) = 0 [pid 4056] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4056] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4056] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4056] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4056] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4055] <... futex resumed>) = 0 [pid 4055] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4055] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4056] <... futex resumed>) = 1 [pid 4056] pipe2([5, 6], 0) = 0 [pid 4056] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4055] <... futex resumed>) = 0 [pid 4056] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4055] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4056] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4055] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4056] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4056] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4055] <... futex resumed>) = 0 [pid 4055] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4055] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4056] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4055] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4055] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4055] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4055] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4055] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4055] clone(child_stack=0x7fbc2b5fd2f0, 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 4057 attached , parent_tid=[4057], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4057 [pid 4055] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4057] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4055] <... futex resumed>) = 0 [pid 4057] <... set_robust_list resumed>) = 0 [pid 4055] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4057] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4057] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4056] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4055] <... futex resumed>) = 0 [pid 4057] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4056] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4055] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4056] <... futex resumed>) = 0 [pid 4055] <... futex resumed>) = 0 [pid 4056] read(5, [pid 4055] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4056] <... read resumed>NULL, 0) = 0 [pid 4056] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4055] <... futex resumed>) = 0 [pid 4056] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4055] exit_group(0 [pid 4057] <... futex resumed>) = ? [pid 4056] <... futex resumed>) = ? [pid 4055] <... exit_group resumed>) = ? [pid 4057] +++ exited with 0 +++ [pid 4056] +++ exited with 0 +++ [pid 4055] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4055, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4058 ./strace-static-x86_64: Process 4058 attached [pid 4058] set_robust_list(0x555556e316e0, 24) = 0 [pid 4058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4058] setpgid(0, 0) = 0 [pid 4058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4058] write(3, "1000", 4) = 4 [pid 4058] close(3) = 0 [pid 4058] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4058] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4058] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4058] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4059], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4059 [pid 4058] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4058] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4059 attached [pid 4059] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4059] memfd_create("syzkaller", 0) = 3 [pid 4059] ftruncate(3, 0) = 0 [pid 4059] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4059] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4059] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4059] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4059] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4058] <... futex resumed>) = 0 [pid 4058] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4058] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4059] <... futex resumed>) = 1 [pid 4059] pipe2([5, 6], 0) = 0 [pid 4059] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4058] <... futex resumed>) = 0 [pid 4058] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4058] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4059] <... futex resumed>) = 1 [pid 4059] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4059] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4058] <... futex resumed>) = 0 [pid 4058] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4058] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4059] <... futex resumed>) = 1 [pid 4059] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4058] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4058] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4058] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4058] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4058] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4060], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4060 ./strace-static-x86_64: Process 4060 attached [pid 4060] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4058] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4060] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4058] <... futex resumed>) = 0 [pid 4059] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4058] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4059] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4059] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4060] <... write resumed>) = 8 [pid 4060] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4058] <... futex resumed>) = 0 [pid 4060] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4058] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4059] <... futex resumed>) = 0 [pid 4058] <... futex resumed>) = 1 [pid 4059] read(5, [pid 4058] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4059] <... read resumed>NULL, 0) = 0 [pid 4059] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4058] <... futex resumed>) = 0 [pid 4059] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4058] exit_group(0 [pid 4059] <... futex resumed>) = ? [pid 4058] <... exit_group resumed>) = ? [pid 4060] <... futex resumed>) = ? [pid 4059] +++ exited with 0 +++ [pid 4060] +++ exited with 0 +++ [pid 4058] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4058, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4061 ./strace-static-x86_64: Process 4061 attached [pid 4061] set_robust_list(0x555556e316e0, 24) = 0 [pid 4061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4061] setpgid(0, 0) = 0 [pid 4061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4061] write(3, "1000", 4) = 4 [pid 4061] close(3) = 0 [pid 4061] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4061] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4061] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4061] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4062], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4062 [pid 4061] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4061] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4062 attached [pid 4062] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4062] memfd_create("syzkaller", 0) = 3 [pid 4062] ftruncate(3, 0) = 0 [pid 4062] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4062] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4062] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4062] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4062] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4061] <... futex resumed>) = 0 [pid 4062] pipe2( [pid 4061] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4062] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4062] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4061] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4062] <... futex resumed>) = 0 [pid 4062] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4061] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4061] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4062] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4061] <... futex resumed>) = 0 [pid 4062] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4061] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4062] <... write resumed>) = 64568 [pid 4062] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4062] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4061] <... futex resumed>) = 0 [pid 4061] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4062] <... futex resumed>) = 0 [pid 4061] <... futex resumed>) = 1 [pid 4061] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4062] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4061] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4061] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4061] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4061] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4061] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4061] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4061] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4063], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4063 [pid 4061] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4061] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4063 attached [pid 4063] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4063] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4063] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4062] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4061] <... futex resumed>) = 0 [pid 4062] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4061] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4062] <... futex resumed>) = 0 [pid 4061] <... futex resumed>) = 0 [pid 4062] read(5, [pid 4061] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4062] <... read resumed>NULL, 0) = 0 [pid 4063] <... futex resumed>) = 1 [pid 4062] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4063] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4062] <... futex resumed>) = 1 [pid 4061] <... futex resumed>) = 0 [pid 4062] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4061] exit_group(0 [pid 4062] <... futex resumed>) = ? [pid 4061] <... exit_group resumed>) = ? [pid 4062] +++ exited with 0 +++ [pid 4063] <... futex resumed>) = ? [pid 4063] +++ exited with 0 +++ [pid 4061] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4061, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4064 ./strace-static-x86_64: Process 4064 attached [pid 4064] set_robust_list(0x555556e316e0, 24) = 0 [pid 4064] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4064] setpgid(0, 0) = 0 [pid 4064] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4064] write(3, "1000", 4) = 4 [pid 4064] close(3) = 0 [pid 4064] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4064] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4064] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4064] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4065], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4065 [pid 4064] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4064] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4065 attached [pid 4065] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4065] memfd_create("syzkaller", 0) = 3 [pid 4065] ftruncate(3, 0) = 0 [pid 4065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4065] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4065] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4065] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4065] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4064] <... futex resumed>) = 0 [pid 4064] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4064] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4065] <... futex resumed>) = 1 [pid 4065] pipe2([5, 6], 0) = 0 [pid 4065] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4064] <... futex resumed>) = 0 [pid 4064] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4064] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4065] <... futex resumed>) = 1 [pid 4065] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4065] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4064] <... futex resumed>) = 0 [pid 4064] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4064] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4065] <... futex resumed>) = 1 [pid 4065] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4064] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4064] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4064] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4064] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4064] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4066], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4066 [pid 4064] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4064] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4066 attached [pid 4066] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4066] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4065] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4065] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4066] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4065] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4066] <... futex resumed>) = 1 [pid 4064] <... futex resumed>) = 0 [pid 4066] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4064] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4065] <... futex resumed>) = 0 [pid 4064] <... futex resumed>) = 1 [pid 4065] read(5, [pid 4064] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4065] <... read resumed>NULL, 0) = 0 [pid 4065] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4064] <... futex resumed>) = 0 [pid 4065] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4064] exit_group(0) = ? [pid 4065] <... futex resumed>) = ? [pid 4066] <... futex resumed>) = ? [pid 4065] +++ exited with 0 +++ [pid 4066] +++ exited with 0 +++ [pid 4064] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4064, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4067 ./strace-static-x86_64: Process 4067 attached [pid 4067] set_robust_list(0x555556e316e0, 24) = 0 [pid 4067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4067] setpgid(0, 0) = 0 [pid 4067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4067] write(3, "1000", 4) = 4 [pid 4067] close(3) = 0 [pid 4067] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4067] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4067] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4067] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4068], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4068 ./strace-static-x86_64: Process 4068 attached [pid 4067] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4067] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4068] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4068] memfd_create("syzkaller", 0) = 3 [pid 4068] ftruncate(3, 0) = 0 [pid 4068] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4068] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4068] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4068] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4068] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4067] <... futex resumed>) = 0 [pid 4067] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4067] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4068] pipe2([5, 6], 0) = 0 [pid 4068] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4067] <... futex resumed>) = 0 [pid 4067] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4067] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4068] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4068] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4067] <... futex resumed>) = 0 [pid 4067] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4067] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4068] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4067] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4067] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4067] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4067] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4067] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4069], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4069 ./strace-static-x86_64: Process 4069 attached [pid 4069] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4067] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4069] <... set_robust_list resumed>) = 0 [pid 4067] <... futex resumed>) = 0 [pid 4069] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4069] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4068] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4069] <... futex resumed>) = 0 [pid 4069] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4067] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4068] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4067] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4068] <... futex resumed>) = 0 [pid 4069] <... futex resumed>) = 0 [pid 4067] <... futex resumed>) = 1 [pid 4069] read(5, [pid 4067] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4069] <... read resumed>NULL, 0) = 0 [pid 4069] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4067] <... futex resumed>) = 0 [pid 4069] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4067] exit_group(0 [pid 4069] <... futex resumed>) = ? [pid 4067] <... exit_group resumed>) = ? [pid 4068] +++ exited with 0 +++ [pid 4069] +++ exited with 0 +++ [pid 4067] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4067, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4070 ./strace-static-x86_64: Process 4070 attached [pid 4070] set_robust_list(0x555556e316e0, 24) = 0 [pid 4070] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4070] setpgid(0, 0) = 0 [pid 4070] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4070] write(3, "1000", 4) = 4 [pid 4070] close(3) = 0 [pid 4070] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4070] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4070] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4070] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4071], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4071 [pid 4070] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4070] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4071 attached [pid 4071] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4071] memfd_create("syzkaller", 0) = 3 [pid 4071] ftruncate(3, 0) = 0 [pid 4071] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4071] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4071] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4071] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4071] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4070] <... futex resumed>) = 0 [pid 4070] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4070] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4071] <... futex resumed>) = 1 [pid 4071] pipe2([5, 6], 0) = 0 [pid 4071] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4070] <... futex resumed>) = 0 [pid 4070] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4070] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4071] <... futex resumed>) = 1 [pid 4071] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4071] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4070] <... futex resumed>) = 0 [pid 4070] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4070] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4071] <... futex resumed>) = 1 [pid 4071] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4070] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4070] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4070] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4070] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4070] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4070] clone(child_stack=0x7fbc2b5fd2f0, 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 4072 attached , parent_tid=[4072], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4072 [pid 4072] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4070] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4072] <... set_robust_list resumed>) = 0 [pid 4070] <... futex resumed>) = 0 [pid 4072] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4070] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4072] <... write resumed>) = 8 [pid 4072] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4071] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4072] <... futex resumed>) = 1 [pid 4071] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4070] <... futex resumed>) = 0 [pid 4072] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4071] <... futex resumed>) = 0 [pid 4070] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4071] read(5, [pid 4070] <... futex resumed>) = 0 [pid 4071] <... read resumed>NULL, 0) = 0 [pid 4070] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4071] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4070] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4071] <... futex resumed>) = 0 [pid 4070] exit_group(0 [pid 4072] <... futex resumed>) = ? [pid 4070] <... exit_group resumed>) = ? [pid 4072] +++ exited with 0 +++ [pid 4071] +++ exited with 0 +++ [pid 4070] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4070, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4073 ./strace-static-x86_64: Process 4073 attached [pid 4073] set_robust_list(0x555556e316e0, 24) = 0 [pid 4073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4073] setpgid(0, 0) = 0 [pid 4073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4073] write(3, "1000", 4) = 4 [pid 4073] close(3) = 0 [pid 4073] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4073] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4073] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4073] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4074], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4074 [pid 4073] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4073] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4074 attached [pid 4074] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4074] memfd_create("syzkaller", 0) = 3 [pid 4074] ftruncate(3, 0) = 0 [pid 4074] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4074] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4074] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4074] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4074] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4073] <... futex resumed>) = 0 [pid 4073] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4073] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4074] <... futex resumed>) = 1 [pid 4074] pipe2([5, 6], 0) = 0 [pid 4074] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4073] <... futex resumed>) = 0 [pid 4073] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4073] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4074] <... futex resumed>) = 1 [pid 4074] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4074] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4073] <... futex resumed>) = 0 [pid 4073] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4073] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4074] <... futex resumed>) = 1 [pid 4074] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4073] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4073] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4073] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4073] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4073] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4073] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4073] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4075], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4075 [pid 4073] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4073] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4075 attached [pid 4075] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4075] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4074] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4074] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4074] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4075] <... write resumed>) = 8 [pid 4075] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4073] <... futex resumed>) = 0 [pid 4073] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4074] <... futex resumed>) = 0 [pid 4073] <... futex resumed>) = 1 [pid 4074] read(5, [pid 4073] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4074] <... read resumed>NULL, 0) = 0 [pid 4074] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4073] <... futex resumed>) = 0 [pid 4074] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4073] exit_group(0 [pid 4074] <... futex resumed>) = ? [pid 4073] <... exit_group resumed>) = ? [pid 4074] +++ exited with 0 +++ [pid 4075] <... futex resumed>) = ? [pid 4075] +++ exited with 0 +++ [pid 4073] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4073, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4076 ./strace-static-x86_64: Process 4076 attached [pid 4076] set_robust_list(0x555556e316e0, 24) = 0 [pid 4076] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4076] setpgid(0, 0) = 0 [pid 4076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4076] write(3, "1000", 4) = 4 [pid 4076] close(3) = 0 [pid 4076] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4076] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4076] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4076] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4077], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4077 [pid 4076] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4076] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4077 attached [pid 4077] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4077] memfd_create("syzkaller", 0) = 3 [pid 4077] ftruncate(3, 0) = 0 [pid 4077] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4077] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4077] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4077] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4077] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4076] <... futex resumed>) = 0 [pid 4076] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4076] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4077] <... futex resumed>) = 1 [pid 4077] pipe2([5, 6], 0) = 0 [pid 4077] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4076] <... futex resumed>) = 0 [pid 4077] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4076] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4076] <... futex resumed>) = 0 [pid 4076] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4077] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4077] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4076] <... futex resumed>) = 0 [pid 4076] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4077] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4076] <... futex resumed>) = 0 [pid 4076] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4076] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4076] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4076] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4076] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4076] clone(child_stack=0x7fbc2b5fd2f0, 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 4078 attached , parent_tid=[4078], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4078 [pid 4078] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4076] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4078] <... set_robust_list resumed>) = 0 [pid 4076] <... futex resumed>) = 0 [pid 4078] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4076] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4078] <... write resumed>) = 8 [pid 4078] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4077] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4078] <... futex resumed>) = 1 [pid 4077] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4076] <... futex resumed>) = 0 [pid 4078] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4077] <... futex resumed>) = 0 [pid 4076] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4077] read(5, [pid 4076] <... futex resumed>) = 0 [pid 4077] <... read resumed>NULL, 0) = 0 [pid 4076] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4077] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4076] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4077] <... futex resumed>) = 0 [pid 4076] exit_group(0 [pid 4078] <... futex resumed>) = ? [pid 4076] <... exit_group resumed>) = ? [pid 4077] +++ exited with 0 +++ [pid 4078] +++ exited with 0 +++ [pid 4076] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4076, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4079 attached , child_tidptr=0x555556e316d0) = 4079 [pid 4079] set_robust_list(0x555556e316e0, 24) = 0 [pid 4079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4079] setpgid(0, 0) = 0 [pid 4079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4079] write(3, "1000", 4) = 4 [pid 4079] close(3) = 0 [pid 4079] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4079] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4079] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4079] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4080], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4080 [pid 4079] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4079] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4080 attached [pid 4080] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4080] memfd_create("syzkaller", 0) = 3 [pid 4080] ftruncate(3, 0) = 0 [pid 4080] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4080] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4080] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4080] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4080] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4079] <... futex resumed>) = 0 [pid 4079] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4079] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4080] <... futex resumed>) = 1 [pid 4080] pipe2([5, 6], 0) = 0 [pid 4080] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4079] <... futex resumed>) = 0 [pid 4079] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4079] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4080] <... futex resumed>) = 1 [pid 4080] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4080] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4079] <... futex resumed>) = 0 [pid 4079] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4079] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4080] <... futex resumed>) = 1 [pid 4080] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4079] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4079] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4079] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4079] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4079] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4079] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4079] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4081], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4081 [pid 4079] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4079] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4081 attached [pid 4081] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4081] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4081] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4079] <... futex resumed>) = 0 [pid 4079] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4079] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4081] <... futex resumed>) = 1 [pid 4081] read(5, NULL, 0) = 0 [pid 4081] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4079] <... futex resumed>) = 0 [pid 4081] <... futex resumed>) = 1 [pid 4081] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4080] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4080] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4080] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4079] exit_group(0) = ? [pid 4081] <... futex resumed>) = ? [pid 4081] +++ exited with 0 +++ [pid 4080] <... futex resumed>) = ? [pid 4080] +++ exited with 0 +++ [pid 4079] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4079, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4082 ./strace-static-x86_64: Process 4082 attached [pid 4082] set_robust_list(0x555556e316e0, 24) = 0 [pid 4082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4082] setpgid(0, 0) = 0 [pid 4082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4082] write(3, "1000", 4) = 4 [pid 4082] close(3) = 0 [pid 4082] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4082] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4082] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4082] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4083], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4083 [pid 4082] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4082] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4083 attached [pid 4083] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4083] memfd_create("syzkaller", 0) = 3 [pid 4083] ftruncate(3, 0) = 0 [pid 4083] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4083] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4083] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4083] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4083] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4082] <... futex resumed>) = 0 [pid 4082] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4082] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4083] <... futex resumed>) = 1 [pid 4083] pipe2([5, 6], 0) = 0 [pid 4083] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4082] <... futex resumed>) = 0 [pid 4082] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4082] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4083] <... futex resumed>) = 1 [pid 4083] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4083] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4082] <... futex resumed>) = 0 [pid 4082] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4082] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4083] <... futex resumed>) = 1 [pid 4083] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4082] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4082] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4082] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4082] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4082] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4082] clone(child_stack=0x7fbc2b5fd2f0, 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 4084 attached , parent_tid=[4084], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4084 [pid 4084] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4082] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4084] <... set_robust_list resumed>) = 0 [pid 4082] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4084] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4084] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4082] <... futex resumed>) = 0 [pid 4084] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4082] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4082] <... futex resumed>) = 0 [pid 4084] read(5, [pid 4082] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4084] <... read resumed>NULL, 0) = 0 [pid 4084] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4082] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4084] <... futex resumed>) = 0 [pid 4084] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4083] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4083] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4083] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4082] exit_group(0) = ? [pid 4084] <... futex resumed>) = ? [pid 4084] +++ exited with 0 +++ [pid 4083] <... futex resumed>) = ? [pid 4083] +++ exited with 0 +++ [pid 4082] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4082, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4085 ./strace-static-x86_64: Process 4085 attached [pid 4085] set_robust_list(0x555556e316e0, 24) = 0 [pid 4085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4085] setpgid(0, 0) = 0 [pid 4085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4085] write(3, "1000", 4) = 4 [pid 4085] close(3) = 0 [pid 4085] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4085] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4085] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4085] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4086], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4086 ./strace-static-x86_64: Process 4086 attached [pid 4085] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4086] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4086] memfd_create("syzkaller", 0) = 3 [pid 4085] <... futex resumed>) = 0 [pid 4086] ftruncate(3, 0 [pid 4085] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4086] <... ftruncate resumed>) = 0 [pid 4086] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4086] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4086] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4086] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4086] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4085] <... futex resumed>) = 0 [pid 4085] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4085] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4086] pipe2([5, 6], 0) = 0 [pid 4086] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4085] <... futex resumed>) = 0 [pid 4085] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4085] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4086] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4086] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4085] <... futex resumed>) = 0 [pid 4085] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4085] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4086] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4085] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4085] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4085] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4085] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4085] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4085] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4087], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4087 [pid 4085] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4085] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4087 attached [pid 4087] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4087] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4087] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4086] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4086] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4086] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4085] <... futex resumed>) = 0 [pid 4085] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4086] <... futex resumed>) = 0 [pid 4085] <... futex resumed>) = 1 [pid 4086] read(5, [pid 4085] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4086] <... read resumed>NULL, 0) = 0 [pid 4087] <... futex resumed>) = 1 [pid 4086] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4085] <... futex resumed>) = 0 [pid 4086] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4085] exit_group(0 [pid 4087] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4086] <... futex resumed>) = ? [pid 4085] <... exit_group resumed>) = ? [pid 4086] +++ exited with 0 +++ [pid 4087] <... futex resumed>) = ? [pid 4087] +++ exited with 0 +++ [pid 4085] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4085, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4088 ./strace-static-x86_64: Process 4088 attached [pid 4088] set_robust_list(0x555556e316e0, 24) = 0 [pid 4088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4088] setpgid(0, 0) = 0 [pid 4088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4088] write(3, "1000", 4) = 4 [pid 4088] close(3) = 0 [pid 4088] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4088] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4088] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4088] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4089], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4089 [pid 4088] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4088] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4089 attached [pid 4089] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4089] memfd_create("syzkaller", 0) = 3 [pid 4089] ftruncate(3, 0) = 0 [pid 4089] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4089] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4089] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4089] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4089] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4088] <... futex resumed>) = 0 [pid 4088] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4088] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4089] <... futex resumed>) = 1 [pid 4089] pipe2([5, 6], 0) = 0 [pid 4089] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4088] <... futex resumed>) = 0 [pid 4088] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4088] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4089] <... futex resumed>) = 1 [pid 4089] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4089] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4088] <... futex resumed>) = 0 [pid 4088] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4088] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4089] <... futex resumed>) = 1 [pid 4089] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4088] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4088] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4088] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4088] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4088] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4088] clone(child_stack=0x7fbc2b5fd2f0, 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 4090 attached , parent_tid=[4090], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4090 [pid 4090] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4088] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4090] <... set_robust_list resumed>) = 0 [pid 4088] <... futex resumed>) = 0 [pid 4088] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4090] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4090] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4090] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4089] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4088] <... futex resumed>) = 0 [pid 4089] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4088] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4089] <... futex resumed>) = 0 [pid 4088] <... futex resumed>) = 0 [pid 4089] read(5, [pid 4088] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4089] <... read resumed>NULL, 0) = 0 [pid 4089] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4088] <... futex resumed>) = 0 [pid 4089] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4088] exit_group(0 [pid 4090] <... futex resumed>) = ? [pid 4089] <... futex resumed>) = ? [pid 4088] <... exit_group resumed>) = ? [pid 4090] +++ exited with 0 +++ [pid 4089] +++ exited with 0 +++ [pid 4088] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4088, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4091 ./strace-static-x86_64: Process 4091 attached [pid 4091] set_robust_list(0x555556e316e0, 24) = 0 [pid 4091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4091] setpgid(0, 0) = 0 [pid 4091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4091] write(3, "1000", 4) = 4 [pid 4091] close(3) = 0 [pid 4091] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4091] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4091] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4091] clone(child_stack=0x7fbc2b61e2f0, 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 4092 attached , parent_tid=[4092], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4092 [pid 4091] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4091] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4092] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4092] memfd_create("syzkaller", 0) = 3 [pid 4092] ftruncate(3, 0) = 0 [pid 4092] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4092] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4092] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4092] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4092] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4091] <... futex resumed>) = 0 [pid 4091] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4091] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4092] pipe2([5, 6], 0) = 0 [pid 4092] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4091] <... futex resumed>) = 0 [pid 4091] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4091] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4092] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4092] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4091] <... futex resumed>) = 0 [pid 4092] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4091] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4091] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4091] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4091] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4091] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4091] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4093], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4093 [pid 4091] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4091] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4093 attached [pid 4093] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4093] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4093] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4091] <... futex resumed>) = 0 [pid 4091] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4091] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4093] <... futex resumed>) = 1 [pid 4093] read(5, NULL, 0) = 0 [pid 4093] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4091] <... futex resumed>) = 0 [pid 4093] <... futex resumed>) = 1 [pid 4093] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4092] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4092] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4092] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4091] exit_group(0) = ? [pid 4092] <... futex resumed>) = ? [pid 4092] +++ exited with 0 +++ [pid 4093] <... futex resumed>) = ? [pid 4093] +++ exited with 0 +++ [pid 4091] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4091, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4094 ./strace-static-x86_64: Process 4094 attached [pid 4094] set_robust_list(0x555556e316e0, 24) = 0 [pid 4094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4094] setpgid(0, 0) = 0 [pid 4094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4094] write(3, "1000", 4) = 4 [pid 4094] close(3) = 0 [pid 4094] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4094] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4094] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4094] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4095], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4095 [pid 4094] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4094] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4095 attached [pid 4095] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4095] memfd_create("syzkaller", 0) = 3 [pid 4095] ftruncate(3, 0) = 0 [pid 4095] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4095] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4095] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4095] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4095] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4094] <... futex resumed>) = 0 [pid 4094] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4094] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4095] <... futex resumed>) = 1 [pid 4095] pipe2([5, 6], 0) = 0 [pid 4095] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4094] <... futex resumed>) = 0 [pid 4094] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4094] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4095] <... futex resumed>) = 1 [pid 4095] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4095] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4094] <... futex resumed>) = 0 [pid 4094] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4094] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4095] <... futex resumed>) = 1 [pid 4095] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4094] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4094] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4094] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4094] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4094] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4094] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4094] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4096], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4096 [pid 4094] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4094] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4096 attached [pid 4096] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4096] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4095] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4095] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4095] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4096] <... write resumed>) = 8 [pid 4096] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4094] <... futex resumed>) = 0 [pid 4094] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4095] <... futex resumed>) = 0 [pid 4094] <... futex resumed>) = 1 [pid 4095] read(5, [pid 4094] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4095] <... read resumed>NULL, 0) = 0 [pid 4095] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4094] <... futex resumed>) = 0 [pid 4095] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4094] exit_group(0 [pid 4095] <... futex resumed>) = ? [pid 4094] <... exit_group resumed>) = ? [pid 4095] +++ exited with 0 +++ [pid 4096] <... futex resumed>) = ? [pid 4096] +++ exited with 0 +++ [pid 4094] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4094, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4097 ./strace-static-x86_64: Process 4097 attached [pid 4097] set_robust_list(0x555556e316e0, 24) = 0 [pid 4097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4097] setpgid(0, 0) = 0 [pid 4097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4097] write(3, "1000", 4) = 4 [pid 4097] close(3) = 0 [pid 4097] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4097] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4097] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4097] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4098], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4098 [pid 4097] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4097] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4098 attached [pid 4098] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4098] memfd_create("syzkaller", 0) = 3 [pid 4098] ftruncate(3, 0) = 0 [pid 4098] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4098] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4098] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4098] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4098] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4097] <... futex resumed>) = 0 [pid 4097] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4097] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4098] <... futex resumed>) = 1 [pid 4098] pipe2([5, 6], 0) = 0 [pid 4098] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4097] <... futex resumed>) = 0 [pid 4097] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4097] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4098] <... futex resumed>) = 1 [pid 4098] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4098] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4097] <... futex resumed>) = 0 [pid 4097] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4097] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4098] <... futex resumed>) = 1 [pid 4098] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4097] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4097] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4097] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4097] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4097] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4097] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4097] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4097] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4099], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4099 [pid 4097] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4097] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4099 attached [pid 4099] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4099] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4098] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4099] <... write resumed>) = 8 [pid 4099] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4098] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4097] <... futex resumed>) = 0 [pid 4098] read(5, [pid 4097] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4098] <... read resumed>NULL, 0) = 0 [pid 4097] <... futex resumed>) = 0 [pid 4098] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4097] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4098] <... futex resumed>) = 0 [pid 4097] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4098] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4097] exit_group(0) = ? [pid 4098] <... futex resumed>) = ? [pid 4098] +++ exited with 0 +++ [pid 4099] <... futex resumed>) = ? [pid 4099] +++ exited with 0 +++ [pid 4097] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4097, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4100 ./strace-static-x86_64: Process 4100 attached [pid 4100] set_robust_list(0x555556e316e0, 24) = 0 [pid 4100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4100] setpgid(0, 0) = 0 [pid 4100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4100] write(3, "1000", 4) = 4 [pid 4100] close(3) = 0 [pid 4100] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4100] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4100] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4100] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4101], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4101 [pid 4100] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4100] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4101 attached [pid 4101] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4101] memfd_create("syzkaller", 0) = 3 [pid 4101] ftruncate(3, 0) = 0 [pid 4101] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4101] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4101] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4101] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4101] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4101] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4100] <... futex resumed>) = 0 [pid 4100] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4101] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4100] <... futex resumed>) = 0 [pid 4100] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4101] pipe2([5, 6], 0) = 0 [pid 4101] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4100] <... futex resumed>) = 0 [pid 4101] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4100] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4101] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4100] <... futex resumed>) = 0 [pid 4100] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4101] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4101] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4100] <... futex resumed>) = 0 [pid 4100] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4100] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4101] <... futex resumed>) = 1 [pid 4101] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4100] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4100] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4100] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4100] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4100] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4100] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4100] clone(child_stack=0x7fbc2b5fd2f0, 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 4102 attached , parent_tid=[4102], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4102 [pid 4100] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4100] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4102] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4102] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4101] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4102] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4101] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4102] <... futex resumed>) = 1 [pid 4100] <... futex resumed>) = 0 [pid 4102] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4100] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4100] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4101] <... futex resumed>) = 1 [pid 4100] <... futex resumed>) = 0 [pid 4101] read(5, [pid 4100] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4101] <... read resumed>NULL, 0) = 0 [pid 4101] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4100] <... futex resumed>) = 0 [pid 4101] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4100] exit_group(0 [pid 4102] <... futex resumed>) = ? [pid 4101] <... futex resumed>) = ? [pid 4100] <... exit_group resumed>) = ? [pid 4102] +++ exited with 0 +++ [pid 4101] +++ exited with 0 +++ [pid 4100] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4100, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4103 attached , child_tidptr=0x555556e316d0) = 4103 [pid 4103] set_robust_list(0x555556e316e0, 24) = 0 [pid 4103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4103] setpgid(0, 0) = 0 [pid 4103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4103] write(3, "1000", 4) = 4 [pid 4103] close(3) = 0 [pid 4103] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4103] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4103] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4103] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4104], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4104 [pid 4103] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4103] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4104 attached [pid 4104] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4104] memfd_create("syzkaller", 0) = 3 [pid 4104] ftruncate(3, 0) = 0 [pid 4104] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4104] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4104] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4104] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4104] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4103] <... futex resumed>) = 0 [pid 4103] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4103] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4104] <... futex resumed>) = 1 [pid 4104] pipe2([5, 6], 0) = 0 [pid 4104] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4103] <... futex resumed>) = 0 [pid 4103] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4103] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4104] <... futex resumed>) = 1 [pid 4104] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4104] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4103] <... futex resumed>) = 0 [pid 4103] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4103] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4104] <... futex resumed>) = 1 [pid 4104] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4103] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4103] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4103] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4103] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4103] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4103] clone(child_stack=0x7fbc2b5fd2f0, 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 4105 attached , parent_tid=[4105], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4105 [pid 4103] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4103] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4105] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4105] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4104] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4105] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4104] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4105] <... futex resumed>) = 1 [pid 4104] <... futex resumed>) = 0 [pid 4103] <... futex resumed>) = 0 [pid 4105] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4104] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 4103] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4104] read(5, NULL, 0) = 0 [pid 4103] <... futex resumed>) = 0 [pid 4104] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4103] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4104] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4103] exit_group(0 [pid 4105] <... futex resumed>) = ? [pid 4104] <... futex resumed>) = ? [pid 4103] <... exit_group resumed>) = ? [pid 4105] +++ exited with 0 +++ [pid 4104] +++ exited with 0 +++ [pid 4103] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4103, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4106 ./strace-static-x86_64: Process 4106 attached [pid 4106] set_robust_list(0x555556e316e0, 24) = 0 [pid 4106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4106] setpgid(0, 0) = 0 [pid 4106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4106] write(3, "1000", 4) = 4 [pid 4106] close(3) = 0 [pid 4106] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4106] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4106] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4106] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4107], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4107 [pid 4106] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4106] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4107 attached [pid 4107] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4107] memfd_create("syzkaller", 0) = 3 [pid 4107] ftruncate(3, 0) = 0 [pid 4107] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4107] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4107] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4107] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4107] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4106] <... futex resumed>) = 0 [pid 4107] <... futex resumed>) = 1 [pid 4106] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4106] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4107] pipe2([5, 6], 0) = 0 [pid 4107] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4106] <... futex resumed>) = 0 [pid 4106] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4106] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4107] <... futex resumed>) = 1 [pid 4107] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4107] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4106] <... futex resumed>) = 0 [pid 4107] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4106] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4106] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4106] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4106] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4106] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4106] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4108], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4108 [pid 4106] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4106] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4108 attached [pid 4108] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4108] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4107] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4107] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4107] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4108] <... write resumed>) = 8 [pid 4108] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4106] <... futex resumed>) = 0 [pid 4106] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4107] <... futex resumed>) = 0 [pid 4106] <... futex resumed>) = 1 [pid 4107] read(5, [pid 4106] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4107] <... read resumed>NULL, 0) = 0 [pid 4107] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4106] <... futex resumed>) = 0 [pid 4107] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4106] exit_group(0 [pid 4107] <... futex resumed>) = ? [pid 4106] <... exit_group resumed>) = ? [pid 4107] +++ exited with 0 +++ [pid 4108] <... futex resumed>) = ? [pid 4108] +++ exited with 0 +++ [pid 4106] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4106, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4109 ./strace-static-x86_64: Process 4109 attached [pid 4109] set_robust_list(0x555556e316e0, 24) = 0 [pid 4109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4109] setpgid(0, 0) = 0 [pid 4109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4109] write(3, "1000", 4) = 4 [pid 4109] close(3) = 0 [pid 4109] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4109] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4109] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4109] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4110], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4110 [pid 4109] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4109] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4110 attached [pid 4110] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4110] memfd_create("syzkaller", 0) = 3 [pid 4110] ftruncate(3, 0) = 0 [pid 4110] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4110] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4110] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4110] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4110] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4110] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4109] <... futex resumed>) = 0 [pid 4109] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4109] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4110] <... futex resumed>) = 0 [pid 4110] pipe2([5, 6], 0) = 0 [pid 4110] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4109] <... futex resumed>) = 0 [pid 4109] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4109] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4110] <... futex resumed>) = 1 [pid 4110] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4110] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4109] <... futex resumed>) = 0 [pid 4110] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4109] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4110] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4109] <... futex resumed>) = 0 [pid 4109] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4110] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4109] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4109] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4109] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4109] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4109] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4109] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4109] clone(child_stack=0x7fbc2b5fd2f0, 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 4111 attached , parent_tid=[4111], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4111 [pid 4109] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4111] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4109] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4111] <... set_robust_list resumed>) = 0 [pid 4111] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4111] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4110] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4110] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4111] <... futex resumed>) = 1 [pid 4110] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4109] <... futex resumed>) = 0 [pid 4109] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4111] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4110] <... futex resumed>) = 0 [pid 4109] <... futex resumed>) = 1 [pid 4110] read(5, NULL, 0) = 0 [pid 4109] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4110] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4109] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4110] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4109] exit_group(0 [pid 4111] <... futex resumed>) = ? [pid 4110] <... futex resumed>) = ? [pid 4109] <... exit_group resumed>) = ? [pid 4110] +++ exited with 0 +++ [pid 4111] +++ exited with 0 +++ [pid 4109] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4109, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4112 ./strace-static-x86_64: Process 4112 attached [pid 4112] set_robust_list(0x555556e316e0, 24) = 0 [pid 4112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4112] setpgid(0, 0) = 0 [pid 4112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4112] write(3, "1000", 4) = 4 [pid 4112] close(3) = 0 [pid 4112] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4112] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4112] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4112] clone(child_stack=0x7fbc2b61e2f0, 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 4113 attached , parent_tid=[4113], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4113 [pid 4112] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4112] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4113] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4113] memfd_create("syzkaller", 0) = 3 [pid 4113] ftruncate(3, 0) = 0 [pid 4113] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4113] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4113] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4113] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4113] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4112] <... futex resumed>) = 0 [pid 4113] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4112] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4112] <... futex resumed>) = 0 [pid 4113] pipe2( [pid 4112] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4113] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4113] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4113] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4112] <... futex resumed>) = 0 [pid 4112] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4112] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4113] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4113] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4113] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4112] <... futex resumed>) = 0 [pid 4112] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4113] <... futex resumed>) = 0 [pid 4113] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4112] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4112] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4112] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4112] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4112] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4114], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4114 [pid 4112] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 4114 attached ) = 0 [pid 4112] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4114] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4114] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4113] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4114] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4113] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4114] <... futex resumed>) = 1 [pid 4113] <... futex resumed>) = 0 [pid 4114] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4113] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4112] <... futex resumed>) = 0 [pid 4112] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4113] <... futex resumed>) = 0 [pid 4112] <... futex resumed>) = 1 [pid 4113] read(5, [pid 4112] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4113] <... read resumed>NULL, 0) = 0 [pid 4113] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4112] <... futex resumed>) = 0 [pid 4113] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4112] exit_group(0 [pid 4114] <... futex resumed>) = ? [pid 4114] +++ exited with 0 +++ [pid 4113] <... futex resumed>) = ? [pid 4112] <... exit_group resumed>) = ? [pid 4113] +++ exited with 0 +++ [pid 4112] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4112, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4115 ./strace-static-x86_64: Process 4115 attached [pid 4115] set_robust_list(0x555556e316e0, 24) = 0 [pid 4115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4115] setpgid(0, 0) = 0 [pid 4115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4115] write(3, "1000", 4) = 4 [pid 4115] close(3) = 0 [pid 4115] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4115] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4115] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4115] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4116], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4116 ./strace-static-x86_64: Process 4116 attached [pid 4115] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4115] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4116] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4116] memfd_create("syzkaller", 0) = 3 [pid 4116] ftruncate(3, 0) = 0 [pid 4116] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4116] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4116] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4116] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4116] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4116] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4115] <... futex resumed>) = 0 [pid 4115] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4115] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4116] <... futex resumed>) = 0 [pid 4116] pipe2([5, 6], 0) = 0 [pid 4116] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4115] <... futex resumed>) = 0 [pid 4115] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4115] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4116] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4116] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4115] <... futex resumed>) = 0 [pid 4115] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4116] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4115] <... futex resumed>) = 0 [pid 4115] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4115] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4115] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4115] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4115] clone(child_stack=0x7fbc2b5fd2f0, 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 4117 attached , parent_tid=[4117], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4117 [pid 4117] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4117] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4115] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4117] <... futex resumed>) = 0 [pid 4115] <... futex resumed>) = 1 [pid 4117] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4115] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4117] <... write resumed>) = 8 [pid 4117] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4115] <... futex resumed>) = 0 [pid 4117] read(5, [pid 4116] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4115] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4117] <... read resumed>NULL, 0) = 0 [pid 4115] <... futex resumed>) = 0 [pid 4117] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4115] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4117] <... futex resumed>) = 0 [pid 4115] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4117] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4116] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4116] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4115] exit_group(0 [pid 4116] <... futex resumed>) = ? [pid 4115] <... exit_group resumed>) = ? [pid 4116] +++ exited with 0 +++ [pid 4117] <... futex resumed>) = ? [pid 4117] +++ exited with 0 +++ [pid 4115] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4115, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4118 ./strace-static-x86_64: Process 4118 attached [pid 4118] set_robust_list(0x555556e316e0, 24) = 0 [pid 4118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4118] setpgid(0, 0) = 0 [pid 4118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4118] write(3, "1000", 4) = 4 [pid 4118] close(3) = 0 [pid 4118] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4118] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4118] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4118] clone(child_stack=0x7fbc2b61e2f0, 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 4119 attached , parent_tid=[4119], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4119 [pid 4118] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4118] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4119] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4119] memfd_create("syzkaller", 0) = 3 [pid 4119] ftruncate(3, 0) = 0 [pid 4119] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4119] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4119] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4119] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4119] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4118] <... futex resumed>) = 0 [pid 4118] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4118] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4119] pipe2([5, 6], 0) = 0 [pid 4119] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4118] <... futex resumed>) = 0 [pid 4118] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4118] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4119] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4119] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4118] <... futex resumed>) = 0 [pid 4118] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4118] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4119] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4118] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4118] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4118] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4118] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4118] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4118] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4120], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4120 ./strace-static-x86_64: Process 4120 attached [pid 4118] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4118] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4120] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4120] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4119] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4120] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4118] <... futex resumed>) = 0 [pid 4120] read(5, [pid 4119] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4118] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4119] <... futex resumed>) = 0 [pid 4119] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4120] <... read resumed>NULL, 0) = 0 [pid 4120] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4120] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL) = 0 [pid 4118] <... futex resumed>) = 1 [pid 4120] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4118] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4118] exit_group(0 [pid 4120] <... futex resumed>) = ? [pid 4119] <... futex resumed>) = ? [pid 4118] <... exit_group resumed>) = ? [pid 4120] +++ exited with 0 +++ [pid 4119] +++ exited with 0 +++ [pid 4118] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4118, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4121 ./strace-static-x86_64: Process 4121 attached [pid 4121] set_robust_list(0x555556e316e0, 24) = 0 [pid 4121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4121] setpgid(0, 0) = 0 [pid 4121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4121] write(3, "1000", 4) = 4 [pid 4121] close(3) = 0 [pid 4121] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4121] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4121] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4121] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4122], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4122 [pid 4121] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4121] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4122 attached [pid 4122] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4122] memfd_create("syzkaller", 0) = 3 [pid 4122] ftruncate(3, 0) = 0 [pid 4122] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4122] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4122] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4122] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4122] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4121] <... futex resumed>) = 0 [pid 4121] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4121] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4122] <... futex resumed>) = 1 [pid 4122] pipe2([5, 6], 0) = 0 [pid 4122] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4121] <... futex resumed>) = 0 [pid 4121] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4121] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4122] <... futex resumed>) = 1 [pid 4122] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4122] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4121] <... futex resumed>) = 0 [pid 4121] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4121] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4122] <... futex resumed>) = 1 [pid 4122] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4121] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4121] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4121] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4121] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4121] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4121] clone(child_stack=0x7fbc2b5fd2f0, 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 4123 attached , parent_tid=[4123], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4123 [pid 4123] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4121] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4123] <... set_robust_list resumed>) = 0 [pid 4121] <... futex resumed>) = 0 [pid 4121] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4123] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4122] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4122] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4122] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4123] <... write resumed>) = 8 [pid 4123] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4121] <... futex resumed>) = 0 [pid 4123] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4121] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4122] <... futex resumed>) = 0 [pid 4121] <... futex resumed>) = 1 [pid 4122] read(5, [pid 4121] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4122] <... read resumed>NULL, 0) = 0 [pid 4122] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4121] <... futex resumed>) = 0 [pid 4122] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4121] exit_group(0 [pid 4122] <... futex resumed>) = ? [pid 4121] <... exit_group resumed>) = ? [pid 4123] <... futex resumed>) = ? [pid 4122] +++ exited with 0 +++ [pid 4123] +++ exited with 0 +++ [pid 4121] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4121, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4124 ./strace-static-x86_64: Process 4124 attached [pid 4124] set_robust_list(0x555556e316e0, 24) = 0 [pid 4124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4124] setpgid(0, 0) = 0 [pid 4124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4124] write(3, "1000", 4) = 4 [pid 4124] close(3) = 0 [pid 4124] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4124] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4124] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4124] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4125], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4125 [pid 4124] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4124] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4125 attached [pid 4125] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4125] memfd_create("syzkaller", 0) = 3 [pid 4125] ftruncate(3, 0) = 0 [pid 4125] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4125] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4125] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4125] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4125] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4124] <... futex resumed>) = 0 [pid 4124] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4124] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4125] <... futex resumed>) = 1 [pid 4125] pipe2([5, 6], 0) = 0 [pid 4125] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4124] <... futex resumed>) = 0 [pid 4124] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4124] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4125] <... futex resumed>) = 1 [pid 4125] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4125] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4124] <... futex resumed>) = 0 [pid 4124] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4124] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4125] <... futex resumed>) = 1 [pid 4125] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4124] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4124] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4124] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4124] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4124] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4124] clone(child_stack=0x7fbc2b5fd2f0, 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 4126 attached , parent_tid=[4126], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4126 [pid 4124] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4124] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4126] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4126] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4126] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4125] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4126] <... futex resumed>) = 1 [pid 4124] <... futex resumed>) = 0 [pid 4125] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4125] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4126] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4124] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4125] <... futex resumed>) = 0 [pid 4124] <... futex resumed>) = 1 [pid 4125] read(5, [pid 4124] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4125] <... read resumed>NULL, 0) = 0 [pid 4125] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4124] <... futex resumed>) = 0 [pid 4125] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4124] exit_group(0 [pid 4126] <... futex resumed>) = ? [pid 4125] <... futex resumed>) = ? [pid 4124] <... exit_group resumed>) = ? [pid 4126] +++ exited with 0 +++ [pid 4125] +++ exited with 0 +++ [pid 4124] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4124, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4127 ./strace-static-x86_64: Process 4127 attached [pid 4127] set_robust_list(0x555556e316e0, 24) = 0 [pid 4127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4127] setpgid(0, 0) = 0 [pid 4127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4127] write(3, "1000", 4) = 4 [pid 4127] close(3) = 0 [pid 4127] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4127] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4127] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4127] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4128], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4128 [pid 4127] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4127] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4128 attached [pid 4128] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4128] memfd_create("syzkaller", 0) = 3 [pid 4128] ftruncate(3, 0) = 0 [pid 4128] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4128] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4128] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4128] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4128] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4127] <... futex resumed>) = 0 [pid 4127] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4127] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4128] <... futex resumed>) = 1 [pid 4128] pipe2([5, 6], 0) = 0 [pid 4128] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4127] <... futex resumed>) = 0 [pid 4127] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4127] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4128] <... futex resumed>) = 1 [pid 4128] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4128] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4127] <... futex resumed>) = 0 [pid 4127] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4127] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4128] <... futex resumed>) = 1 [pid 4128] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4127] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4127] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4127] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4127] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4127] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4129], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4129 [pid 4127] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4127] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4129 attached [pid 4129] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4129] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4128] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4128] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4128] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4129] <... write resumed>) = 8 [pid 4129] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4127] <... futex resumed>) = 0 [pid 4127] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4128] <... futex resumed>) = 0 [pid 4127] <... futex resumed>) = 1 [pid 4128] read(5, [pid 4127] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4128] <... read resumed>NULL, 0) = 0 [pid 4128] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4127] <... futex resumed>) = 0 [pid 4128] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4127] exit_group(0 [pid 4128] <... futex resumed>) = ? [pid 4127] <... exit_group resumed>) = ? [pid 4128] +++ exited with 0 +++ [pid 4129] <... futex resumed>) = ? [pid 4129] +++ exited with 0 +++ [pid 4127] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4127, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4130 attached , child_tidptr=0x555556e316d0) = 4130 [pid 4130] set_robust_list(0x555556e316e0, 24) = 0 [pid 4130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4130] setpgid(0, 0) = 0 [pid 4130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4130] write(3, "1000", 4) = 4 [pid 4130] close(3) = 0 [pid 4130] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4130] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4130] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4130] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4131], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4131 [pid 4130] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4130] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4131 attached [pid 4131] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4131] memfd_create("syzkaller", 0) = 3 [pid 4131] ftruncate(3, 0) = 0 [pid 4131] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4131] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4131] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4131] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4131] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4130] <... futex resumed>) = 0 [pid 4130] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4130] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4131] <... futex resumed>) = 1 [pid 4131] pipe2([5, 6], 0) = 0 [pid 4131] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4130] <... futex resumed>) = 0 [pid 4130] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4130] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4131] <... futex resumed>) = 1 [pid 4131] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4131] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4130] <... futex resumed>) = 0 [pid 4130] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4130] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4131] <... futex resumed>) = 1 [pid 4131] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4130] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4130] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4130] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4130] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4130] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4130] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4130] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4132], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4132 [pid 4130] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4130] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4132 attached [pid 4132] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4132] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4131] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4131] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4131] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4132] <... write resumed>) = 8 [pid 4132] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4130] <... futex resumed>) = 0 [pid 4130] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4131] <... futex resumed>) = 0 [pid 4130] <... futex resumed>) = 1 [pid 4131] read(5, [pid 4130] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4131] <... read resumed>NULL, 0) = 0 [pid 4131] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4130] <... futex resumed>) = 0 [pid 4131] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4130] exit_group(0 [pid 4131] <... futex resumed>) = ? [pid 4130] <... exit_group resumed>) = ? [pid 4131] +++ exited with 0 +++ [pid 4132] <... futex resumed>) = ? [pid 4132] +++ exited with 0 +++ [pid 4130] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4130, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4133 ./strace-static-x86_64: Process 4133 attached [pid 4133] set_robust_list(0x555556e316e0, 24) = 0 [pid 4133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4133] setpgid(0, 0) = 0 [pid 4133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4133] write(3, "1000", 4) = 4 [pid 4133] close(3) = 0 [pid 4133] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4133] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4133] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4133] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4134], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4134 [pid 4133] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4133] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4134 attached [pid 4134] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4134] memfd_create("syzkaller", 0) = 3 [pid 4134] ftruncate(3, 0) = 0 [pid 4134] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4134] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4134] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4134] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4134] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4133] <... futex resumed>) = 0 [pid 4133] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4133] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4134] <... futex resumed>) = 1 [pid 4134] pipe2([5, 6], 0) = 0 [pid 4134] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4133] <... futex resumed>) = 0 [pid 4133] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4133] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4134] <... futex resumed>) = 1 [pid 4134] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4134] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4133] <... futex resumed>) = 0 [pid 4133] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4133] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4134] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4133] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4133] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4133] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4133] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4133] clone(child_stack=0x7fbc2b5fd2f0, 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 4135 attached [pid 4135] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4133] <... clone resumed>, parent_tid=[4135], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4135 [pid 4133] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4133] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4135] <... set_robust_list resumed>) = 0 [pid 4135] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4135] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4134] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4134] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4134] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4133] <... futex resumed>) = 0 [pid 4135] <... futex resumed>) = 1 [pid 4133] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4135] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4134] <... futex resumed>) = 0 [pid 4133] <... futex resumed>) = 1 [pid 4134] read(5, [pid 4133] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4134] <... read resumed>NULL, 0) = 0 [pid 4134] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4133] <... futex resumed>) = 0 [pid 4134] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4133] exit_group(0 [pid 4135] <... futex resumed>) = ? [pid 4134] <... futex resumed>) = ? [pid 4133] <... exit_group resumed>) = ? [pid 4135] +++ exited with 0 +++ [pid 4134] +++ exited with 0 +++ [pid 4133] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4133, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4136 ./strace-static-x86_64: Process 4136 attached [pid 4136] set_robust_list(0x555556e316e0, 24) = 0 [pid 4136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4136] setpgid(0, 0) = 0 [pid 4136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4136] write(3, "1000", 4) = 4 [pid 4136] close(3) = 0 [pid 4136] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4136] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4136] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4136] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4137], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4137 [pid 4136] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4136] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4137 attached [pid 4137] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4137] memfd_create("syzkaller", 0) = 3 [pid 4137] ftruncate(3, 0) = 0 [pid 4137] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4137] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4137] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4137] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4137] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4136] <... futex resumed>) = 0 [pid 4136] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4136] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4137] <... futex resumed>) = 1 [pid 4137] pipe2([5, 6], 0) = 0 [pid 4137] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4136] <... futex resumed>) = 0 [pid 4136] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4136] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4137] <... futex resumed>) = 1 [pid 4137] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4137] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4136] <... futex resumed>) = 0 [pid 4136] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4136] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4137] <... futex resumed>) = 1 [pid 4137] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4136] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4136] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4136] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4136] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4136] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4136] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4136] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4138], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4138 [pid 4136] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4136] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4138 attached [pid 4138] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4138] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4138] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4137] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4137] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4137] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4138] <... futex resumed>) = 1 [pid 4136] <... futex resumed>) = 0 [pid 4138] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4136] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4137] <... futex resumed>) = 0 [pid 4136] <... futex resumed>) = 1 [pid 4137] read(5, [pid 4136] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4137] <... read resumed>NULL, 0) = 0 [pid 4137] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4136] <... futex resumed>) = 0 [pid 4137] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4136] exit_group(0 [pid 4137] <... futex resumed>) = ? [pid 4136] <... exit_group resumed>) = ? [pid 4137] +++ exited with 0 +++ [pid 4138] <... futex resumed>) = ? [pid 4138] +++ exited with 0 +++ [pid 4136] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4136, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4139 attached , child_tidptr=0x555556e316d0) = 4139 [pid 4139] set_robust_list(0x555556e316e0, 24) = 0 [pid 4139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4139] setpgid(0, 0) = 0 [pid 4139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4139] write(3, "1000", 4) = 4 [pid 4139] close(3) = 0 [pid 4139] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4139] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4139] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4139] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4140], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4140 [pid 4139] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4139] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4140 attached [pid 4140] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4140] memfd_create("syzkaller", 0) = 3 [pid 4140] ftruncate(3, 0) = 0 [pid 4140] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4140] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4140] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4140] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4140] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4139] <... futex resumed>) = 0 [pid 4139] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4139] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4140] <... futex resumed>) = 1 [pid 4140] pipe2([5, 6], 0) = 0 [pid 4140] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4139] <... futex resumed>) = 0 [pid 4139] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4139] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4140] <... futex resumed>) = 1 [pid 4140] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4140] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4139] <... futex resumed>) = 0 [pid 4139] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4139] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4140] <... futex resumed>) = 1 [pid 4140] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4139] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4139] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4139] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4139] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4139] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4141], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4141 [pid 4139] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4139] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4141 attached [pid 4141] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4141] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4140] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4140] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4140] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4141] <... write resumed>) = 8 [pid 4141] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4139] <... futex resumed>) = 0 [pid 4139] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4140] <... futex resumed>) = 0 [pid 4139] <... futex resumed>) = 1 [pid 4140] read(5, [pid 4139] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4140] <... read resumed>NULL, 0) = 0 [pid 4140] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4139] <... futex resumed>) = 0 [pid 4140] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4139] exit_group(0 [pid 4140] <... futex resumed>) = ? [pid 4139] <... exit_group resumed>) = ? [pid 4140] +++ exited with 0 +++ [pid 4141] <... futex resumed>) = ? [pid 4141] +++ exited with 0 +++ [pid 4139] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4139, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4142 attached , child_tidptr=0x555556e316d0) = 4142 [pid 4142] set_robust_list(0x555556e316e0, 24) = 0 [pid 4142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4142] setpgid(0, 0) = 0 [pid 4142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4142] write(3, "1000", 4) = 4 [pid 4142] close(3) = 0 [pid 4142] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4142] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4142] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4142] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4143], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4143 [pid 4142] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4142] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4143 attached [pid 4143] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4143] memfd_create("syzkaller", 0) = 3 [pid 4143] ftruncate(3, 0) = 0 [pid 4143] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4143] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4143] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4143] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4143] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4142] <... futex resumed>) = 0 [pid 4142] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4142] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4143] <... futex resumed>) = 1 [pid 4143] pipe2([5, 6], 0) = 0 [pid 4143] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4142] <... futex resumed>) = 0 [pid 4142] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4142] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4143] <... futex resumed>) = 1 [pid 4143] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4143] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4142] <... futex resumed>) = 0 [pid 4142] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4142] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4143] <... futex resumed>) = 1 [pid 4143] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4142] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4142] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4142] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4142] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4142] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4142] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4142] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4142] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4144], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4144 [pid 4142] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4142] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4144 attached [pid 4144] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4144] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4143] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4143] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4143] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4144] <... write resumed>) = 8 [pid 4144] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4142] <... futex resumed>) = 0 [pid 4142] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4143] <... futex resumed>) = 0 [pid 4142] <... futex resumed>) = 1 [pid 4143] read(5, [pid 4142] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4143] <... read resumed>NULL, 0) = 0 [pid 4143] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4142] <... futex resumed>) = 0 [pid 4143] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4142] exit_group(0 [pid 4143] <... futex resumed>) = ? [pid 4142] <... exit_group resumed>) = ? [pid 4143] +++ exited with 0 +++ [pid 4144] <... futex resumed>) = ? [pid 4144] +++ exited with 0 +++ [pid 4142] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4142, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4145 ./strace-static-x86_64: Process 4145 attached [pid 4145] set_robust_list(0x555556e316e0, 24) = 0 [pid 4145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4145] setpgid(0, 0) = 0 [pid 4145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4145] write(3, "1000", 4) = 4 [pid 4145] close(3) = 0 [pid 4145] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4145] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4145] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4145] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4146], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4146 [pid 4145] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4145] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4146 attached [pid 4146] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4146] memfd_create("syzkaller", 0) = 3 [pid 4146] ftruncate(3, 0) = 0 [pid 4146] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4146] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4146] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4146] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4146] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4145] <... futex resumed>) = 0 [pid 4145] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4145] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4146] <... futex resumed>) = 1 [pid 4146] pipe2([5, 6], 0) = 0 [pid 4146] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4145] <... futex resumed>) = 0 [pid 4145] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4145] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4146] <... futex resumed>) = 1 [pid 4146] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4146] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4145] <... futex resumed>) = 0 [pid 4145] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4145] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4146] <... futex resumed>) = 1 [pid 4146] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4145] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4145] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4145] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4145] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4145] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4147], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4147 [pid 4145] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4145] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4147 attached [pid 4147] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4147] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4146] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4147] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4146] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4147] <... futex resumed>) = 1 [pid 4146] <... futex resumed>) = 0 [pid 4145] <... futex resumed>) = 0 [pid 4147] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4146] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4145] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4146] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4145] <... futex resumed>) = 0 [pid 4146] read(5, [pid 4145] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4146] <... read resumed>NULL, 0) = 0 [pid 4146] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4145] <... futex resumed>) = 0 [pid 4146] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4145] exit_group(0 [pid 4147] <... futex resumed>) = ? [pid 4146] <... futex resumed>) = ? [pid 4145] <... exit_group resumed>) = ? [pid 4147] +++ exited with 0 +++ [pid 4146] +++ exited with 0 +++ [pid 4145] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4145, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4148 ./strace-static-x86_64: Process 4148 attached [pid 4148] set_robust_list(0x555556e316e0, 24) = 0 [pid 4148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4148] setpgid(0, 0) = 0 [pid 4148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4148] write(3, "1000", 4) = 4 [pid 4148] close(3) = 0 [pid 4148] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4148] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4148] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4148] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4149], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4149 [pid 4148] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4148] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4149 attached [pid 4149] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4149] memfd_create("syzkaller", 0) = 3 [pid 4149] ftruncate(3, 0) = 0 [pid 4149] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4149] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4149] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4149] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4149] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4148] <... futex resumed>) = 0 [pid 4148] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4148] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4149] <... futex resumed>) = 1 [pid 4149] pipe2([5, 6], 0) = 0 [pid 4149] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4148] <... futex resumed>) = 0 [pid 4148] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4148] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4149] <... futex resumed>) = 1 [pid 4149] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4149] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4148] <... futex resumed>) = 0 [pid 4148] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4148] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4149] <... futex resumed>) = 1 [pid 4149] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4148] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4148] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4148] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4148] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4148] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4150], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4150 [pid 4148] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4148] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4150 attached [pid 4150] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4150] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4149] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4149] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4149] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4150] <... write resumed>) = 8 [pid 4150] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4148] <... futex resumed>) = 0 [pid 4148] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4149] <... futex resumed>) = 0 [pid 4148] <... futex resumed>) = 1 [pid 4149] read(5, [pid 4148] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4149] <... read resumed>NULL, 0) = 0 [pid 4149] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4148] <... futex resumed>) = 0 [pid 4149] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4148] exit_group(0 [pid 4149] <... futex resumed>) = ? [pid 4148] <... exit_group resumed>) = ? [pid 4149] +++ exited with 0 +++ [pid 4150] <... futex resumed>) = ? [pid 4150] +++ exited with 0 +++ [pid 4148] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4148, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4151 ./strace-static-x86_64: Process 4151 attached [pid 4151] set_robust_list(0x555556e316e0, 24) = 0 [pid 4151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4151] setpgid(0, 0) = 0 [pid 4151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4151] write(3, "1000", 4) = 4 [pid 4151] close(3) = 0 [pid 4151] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4151] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4151] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4151] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4152], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4152 [pid 4151] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4151] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4152 attached [pid 4152] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4152] memfd_create("syzkaller", 0) = 3 [pid 4152] ftruncate(3, 0) = 0 [pid 4152] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4152] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4152] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4152] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4152] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4151] <... futex resumed>) = 0 [pid 4151] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4151] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4152] pipe2([5, 6], 0) = 0 [pid 4152] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4151] <... futex resumed>) = 0 [pid 4152] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4151] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4152] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4151] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4152] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4152] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4151] <... futex resumed>) = 0 [pid 4151] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4151] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4152] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4151] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4151] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4151] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4151] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4151] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4153], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4153 [pid 4151] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4151] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4153 attached [pid 4153] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4153] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4152] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4152] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4152] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4153] <... write resumed>) = 8 [pid 4153] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4151] <... futex resumed>) = 0 [pid 4151] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4152] <... futex resumed>) = 0 [pid 4151] <... futex resumed>) = 1 [pid 4152] read(5, [pid 4151] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4152] <... read resumed>NULL, 0) = 0 [pid 4152] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4151] <... futex resumed>) = 0 [pid 4152] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4151] exit_group(0 [pid 4152] <... futex resumed>) = ? [pid 4151] <... exit_group resumed>) = ? [pid 4152] +++ exited with 0 +++ [pid 4153] <... futex resumed>) = ? [pid 4153] +++ exited with 0 +++ [pid 4151] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4151, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4154 ./strace-static-x86_64: Process 4154 attached [pid 4154] set_robust_list(0x555556e316e0, 24) = 0 [pid 4154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4154] setpgid(0, 0) = 0 [pid 4154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4154] write(3, "1000", 4) = 4 [pid 4154] close(3) = 0 [pid 4154] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4154] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4154] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4154] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4155], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4155 [pid 4154] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4154] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4155 attached [pid 4155] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4155] memfd_create("syzkaller", 0) = 3 [pid 4155] ftruncate(3, 0) = 0 [pid 4155] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4155] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4155] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4155] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4155] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4154] <... futex resumed>) = 0 [pid 4154] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4154] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4155] <... futex resumed>) = 1 [pid 4155] pipe2([5, 6], 0) = 0 [pid 4155] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4154] <... futex resumed>) = 0 [pid 4154] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4154] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4155] <... futex resumed>) = 1 [pid 4155] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4155] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4154] <... futex resumed>) = 0 [pid 4154] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4154] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4155] <... futex resumed>) = 1 [pid 4155] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4154] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4154] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4154] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4154] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4154] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4154] clone(child_stack=0x7fbc2b5fd2f0, 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 4156 attached [pid 4156] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4154] <... clone resumed>, parent_tid=[4156], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4156 [pid 4156] <... set_robust_list resumed>) = 0 [pid 4154] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4156] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4154] <... futex resumed>) = 0 [pid 4156] <... write resumed>) = 8 [pid 4154] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4156] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4155] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4156] <... futex resumed>) = 1 [pid 4155] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4154] <... futex resumed>) = 0 [pid 4156] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4154] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4154] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4155] <... futex resumed>) = 1 [pid 4154] <... futex resumed>) = 0 [pid 4155] read(5, [pid 4154] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000} [pid 4155] <... read resumed>NULL, 0) = 0 [pid 4155] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4154] <... futex resumed>) = 0 [pid 4155] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4154] exit_group(0 [pid 4156] <... futex resumed>) = ? [pid 4155] <... futex resumed>) = ? [pid 4154] <... exit_group resumed>) = ? [pid 4156] +++ exited with 0 +++ [pid 4155] +++ exited with 0 +++ [pid 4154] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4154, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4157 attached , child_tidptr=0x555556e316d0) = 4157 [pid 4157] set_robust_list(0x555556e316e0, 24) = 0 [pid 4157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4157] setpgid(0, 0) = 0 [pid 4157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4157] write(3, "1000", 4) = 4 [pid 4157] close(3) = 0 [pid 4157] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4157] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4157] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4157] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4158], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4158 [pid 4157] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4157] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4158 attached [pid 4158] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4158] memfd_create("syzkaller", 0) = 3 [pid 4158] ftruncate(3, 0) = 0 [pid 4158] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4158] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4158] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4158] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4158] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4157] <... futex resumed>) = 0 [pid 4157] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4157] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4158] <... futex resumed>) = 1 [pid 4158] pipe2([5, 6], 0) = 0 [pid 4158] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4157] <... futex resumed>) = 0 [pid 4157] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4157] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4158] <... futex resumed>) = 1 [pid 4158] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4158] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4157] <... futex resumed>) = 0 [pid 4157] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4157] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4158] <... futex resumed>) = 1 [pid 4158] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4157] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4157] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4157] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4157] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4157] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4157] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4157] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4159], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4159 ./strace-static-x86_64: Process 4159 attached [pid 4157] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4157] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4159] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4159] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4158] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4159] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4157] <... futex resumed>) = 0 [pid 4159] read(5, [pid 4157] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4159] <... read resumed>NULL, 0) = 0 [pid 4157] <... futex resumed>) = 0 [pid 4159] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4157] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4159] <... futex resumed>) = 0 [pid 4157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4158] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4159] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4158] <... futex resumed>) = 0 [pid 4158] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4157] exit_group(0 [pid 4159] <... futex resumed>) = ? [pid 4158] <... futex resumed>) = ? [pid 4157] <... exit_group resumed>) = ? [pid 4159] +++ exited with 0 +++ [pid 4158] +++ exited with 0 +++ [pid 4157] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4157, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4160 ./strace-static-x86_64: Process 4160 attached [pid 4160] set_robust_list(0x555556e316e0, 24) = 0 [pid 4160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4160] setpgid(0, 0) = 0 [pid 4160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4160] write(3, "1000", 4) = 4 [pid 4160] close(3) = 0 [pid 4160] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4160] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4160] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4160] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4161], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4161 [pid 4160] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4160] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4161 attached [pid 4161] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4161] memfd_create("syzkaller", 0) = 3 [pid 4161] ftruncate(3, 0) = 0 [pid 4161] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4161] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4161] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4161] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4161] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4160] <... futex resumed>) = 0 [pid 4160] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4160] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4161] <... futex resumed>) = 1 [pid 4161] pipe2([5, 6], 0) = 0 [pid 4161] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4160] <... futex resumed>) = 0 [pid 4160] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4160] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4161] <... futex resumed>) = 1 [pid 4161] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4161] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4160] <... futex resumed>) = 0 [pid 4160] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4160] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4161] <... futex resumed>) = 1 [pid 4161] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4160] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4160] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4160] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4160] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4160] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4160] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4162], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4162 [pid 4160] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4160] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4162 attached [pid 4162] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4162] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4162] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4160] <... futex resumed>) = 0 [pid 4160] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4160] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4162] <... futex resumed>) = 1 [pid 4162] read(5, NULL, 0) = 0 [pid 4162] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4160] <... futex resumed>) = 0 [pid 4162] <... futex resumed>) = 1 [pid 4162] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4161] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4161] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4161] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4160] exit_group(0 [pid 4162] <... futex resumed>) = ? [pid 4161] <... futex resumed>) = ? [pid 4160] <... exit_group resumed>) = ? [pid 4162] +++ exited with 0 +++ [pid 4161] +++ exited with 0 +++ [pid 4160] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4160, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4163 ./strace-static-x86_64: Process 4163 attached [pid 4163] set_robust_list(0x555556e316e0, 24) = 0 [pid 4163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4163] setpgid(0, 0) = 0 [pid 4163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4163] write(3, "1000", 4) = 4 [pid 4163] close(3) = 0 [pid 4163] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4163] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4163] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4163] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4164], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4164 ./strace-static-x86_64: Process 4164 attached [pid 4163] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4163] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4164] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4164] memfd_create("syzkaller", 0) = 3 [pid 4164] ftruncate(3, 0) = 0 [pid 4164] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4164] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4164] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4164] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4164] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4163] <... futex resumed>) = 0 [pid 4163] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4163] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4164] pipe2([5, 6], 0) = 0 [pid 4164] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4163] <... futex resumed>) = 0 [pid 4163] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4163] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4164] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4164] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4163] <... futex resumed>) = 0 [pid 4163] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4163] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4164] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4163] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4163] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4163] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4163] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4163] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4163] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4163] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4165], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4165 [pid 4163] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4163] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4165 attached [pid 4165] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4165] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4164] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4164] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4164] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4165] <... write resumed>) = 8 [pid 4165] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4163] <... futex resumed>) = 0 [pid 4163] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4164] <... futex resumed>) = 0 [pid 4163] <... futex resumed>) = 1 [pid 4164] read(5, [pid 4163] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4164] <... read resumed>NULL, 0) = 0 [pid 4164] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4163] <... futex resumed>) = 0 [pid 4164] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4163] exit_group(0 [pid 4164] <... futex resumed>) = ? [pid 4163] <... exit_group resumed>) = ? [pid 4164] +++ exited with 0 +++ [pid 4165] <... futex resumed>) = ? [pid 4165] +++ exited with 0 +++ [pid 4163] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4163, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4166 ./strace-static-x86_64: Process 4166 attached [pid 4166] set_robust_list(0x555556e316e0, 24) = 0 [pid 4166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4166] setpgid(0, 0) = 0 [pid 4166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4166] write(3, "1000", 4) = 4 [pid 4166] close(3) = 0 [pid 4166] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4166] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4166] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4166] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4167], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4167 [pid 4166] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4166] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4167 attached [pid 4167] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4167] memfd_create("syzkaller", 0) = 3 [pid 4167] ftruncate(3, 0) = 0 [pid 4167] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4167] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4167] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4167] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4167] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4166] <... futex resumed>) = 0 [pid 4166] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4166] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4167] <... futex resumed>) = 1 [pid 4167] pipe2([5, 6], 0) = 0 [pid 4167] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4166] <... futex resumed>) = 0 [pid 4167] <... futex resumed>) = 1 [pid 4166] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4167] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4166] <... futex resumed>) = 0 [pid 4166] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4167] <... write resumed>) = 64568 [pid 4167] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4166] <... futex resumed>) = 0 [pid 4167] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4166] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4167] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4166] <... futex resumed>) = 0 [pid 4166] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4167] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4166] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4166] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4166] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4166] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4166] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4168], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4168 [pid 4166] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4166] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4168 attached [pid 4168] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4168] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4167] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4168] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4167] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4166] <... futex resumed>) = 0 [pid 4167] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4166] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4167] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4166] <... futex resumed>) = 0 [pid 4168] <... futex resumed>) = 1 [pid 4167] read(5, [pid 4166] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4168] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4167] <... read resumed>NULL, 0) = 0 [pid 4167] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4166] <... futex resumed>) = 0 [pid 4167] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4166] exit_group(0 [pid 4167] <... futex resumed>) = ? [pid 4166] <... exit_group resumed>) = ? [pid 4167] +++ exited with 0 +++ [pid 4168] <... futex resumed>) = ? [pid 4168] +++ exited with 0 +++ [pid 4166] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4166, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4169 ./strace-static-x86_64: Process 4169 attached [pid 4169] set_robust_list(0x555556e316e0, 24) = 0 [pid 4169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4169] setpgid(0, 0) = 0 [pid 4169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4169] write(3, "1000", 4) = 4 [pid 4169] close(3) = 0 [pid 4169] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4169] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4169] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4169] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4170], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4170 [pid 4169] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4169] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4170 attached [pid 4170] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4170] memfd_create("syzkaller", 0) = 3 [pid 4170] ftruncate(3, 0) = 0 [pid 4170] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4170] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4170] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4170] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4170] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4169] <... futex resumed>) = 0 [pid 4169] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4169] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4170] <... futex resumed>) = 1 [pid 4170] pipe2([5, 6], 0) = 0 [pid 4170] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4169] <... futex resumed>) = 0 [pid 4169] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4169] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4170] <... futex resumed>) = 1 [pid 4170] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4170] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4169] <... futex resumed>) = 0 [pid 4169] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4169] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4170] <... futex resumed>) = 1 [pid 4170] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4169] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4169] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4169] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4169] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4169] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4169] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4171], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4171 [pid 4169] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4169] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4171 attached [pid 4171] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4171] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4171] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4169] <... futex resumed>) = 0 [pid 4170] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4169] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4170] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4169] <... futex resumed>) = 0 [pid 4170] <... futex resumed>) = 0 [pid 4169] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4170] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4171] <... futex resumed>) = 1 [pid 4171] read(5, NULL, 0) = 0 [pid 4171] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4169] <... futex resumed>) = 0 [pid 4169] exit_group(0 [pid 4170] <... futex resumed>) = ? [pid 4169] <... exit_group resumed>) = ? [pid 4170] +++ exited with 0 +++ [pid 4171] <... futex resumed>) = ? [pid 4171] +++ exited with 0 +++ [pid 4169] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4169, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4172 ./strace-static-x86_64: Process 4172 attached [pid 4172] set_robust_list(0x555556e316e0, 24) = 0 [pid 4172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4172] setpgid(0, 0) = 0 [pid 4172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4172] write(3, "1000", 4) = 4 [pid 4172] close(3) = 0 [pid 4172] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4172] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4172] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4172] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4173], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4173 [pid 4172] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4172] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4173 attached [pid 4173] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4173] memfd_create("syzkaller", 0) = 3 [pid 4173] ftruncate(3, 0) = 0 [pid 4173] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4173] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4173] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4173] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4173] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4172] <... futex resumed>) = 0 [pid 4172] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4172] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4173] <... futex resumed>) = 1 [pid 4173] pipe2([5, 6], 0) = 0 [pid 4173] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4172] <... futex resumed>) = 0 [pid 4172] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4172] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4173] <... futex resumed>) = 1 [pid 4173] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4173] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4172] <... futex resumed>) = 0 [pid 4172] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4172] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4173] <... futex resumed>) = 1 [pid 4173] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4172] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4172] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4172] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4172] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4172] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4174], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4174 [pid 4172] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4172] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4174 attached [pid 4174] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4174] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4173] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4173] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4173] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4174] <... write resumed>) = 8 [pid 4174] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4172] <... futex resumed>) = 0 [pid 4172] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4173] <... futex resumed>) = 0 [pid 4172] <... futex resumed>) = 1 [pid 4173] read(5, [pid 4172] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4173] <... read resumed>NULL, 0) = 0 [pid 4173] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4172] <... futex resumed>) = 0 [pid 4173] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4172] exit_group(0 [pid 4173] <... futex resumed>) = ? [pid 4172] <... exit_group resumed>) = ? [pid 4173] +++ exited with 0 +++ [pid 4174] <... futex resumed>) = ? [pid 4174] +++ exited with 0 +++ [pid 4172] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4172, si_uid=0, si_status=0, si_utime=2, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4175 ./strace-static-x86_64: Process 4175 attached [pid 4175] set_robust_list(0x555556e316e0, 24) = 0 [pid 4175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4175] setpgid(0, 0) = 0 [pid 4175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4175] write(3, "1000", 4) = 4 [pid 4175] close(3) = 0 [pid 4175] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4175] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4175] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4175] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4176], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4176 [pid 4175] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4175] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4176 attached [pid 4176] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4176] memfd_create("syzkaller", 0) = 3 [pid 4176] ftruncate(3, 0) = 0 [pid 4176] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4176] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4176] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4176] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4176] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4176] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4175] <... futex resumed>) = 0 [pid 4175] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4175] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4176] <... futex resumed>) = 0 [pid 4176] pipe2([5, 6], 0) = 0 [pid 4176] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4175] <... futex resumed>) = 0 [pid 4175] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4175] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4176] <... futex resumed>) = 1 [pid 4176] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4176] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4175] <... futex resumed>) = 0 [pid 4175] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4175] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4176] <... futex resumed>) = 1 [pid 4176] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4175] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4175] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4175] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4175] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4175] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4177], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4177 ./strace-static-x86_64: Process 4177 attached [pid 4175] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4175] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4177] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4177] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4176] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4177] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4176] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4175] <... futex resumed>) = 0 [pid 4177] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4176] <... futex resumed>) = 0 [pid 4175] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4176] read(5, [pid 4175] <... futex resumed>) = 0 [pid 4176] <... read resumed>NULL, 0) = 0 [pid 4175] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4176] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4175] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4176] <... futex resumed>) = 0 [pid 4175] exit_group(0 [pid 4176] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4175] <... exit_group resumed>) = ? [pid 4176] <... futex resumed>) = ? [pid 4177] <... futex resumed>) = ? [pid 4177] +++ exited with 0 +++ [pid 4176] +++ exited with 0 +++ [pid 4175] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4175, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4178 ./strace-static-x86_64: Process 4178 attached [pid 4178] set_robust_list(0x555556e316e0, 24) = 0 [pid 4178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4178] setpgid(0, 0) = 0 [pid 4178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4178] write(3, "1000", 4) = 4 [pid 4178] close(3) = 0 [pid 4178] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4178] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4178] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4178] clone(child_stack=0x7fbc2b61e2f0, 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 4179 attached , parent_tid=[4179], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4179 [pid 4178] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4178] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4179] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4179] memfd_create("syzkaller", 0) = 3 [pid 4179] ftruncate(3, 0) = 0 [pid 4179] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4179] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4179] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4179] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4179] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4179] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4178] <... futex resumed>) = 0 [pid 4178] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4178] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4179] <... futex resumed>) = 0 [pid 4179] pipe2([5, 6], 0) = 0 [pid 4179] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4178] <... futex resumed>) = 0 [pid 4178] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4178] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4179] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4179] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4178] <... futex resumed>) = 0 [pid 4178] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4179] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4178] <... futex resumed>) = 0 [pid 4178] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4178] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4178] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4178] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4178] clone(child_stack=0x7fbc2b5fd2f0, 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 4180 attached , parent_tid=[4180], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4180 [pid 4180] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4180] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4178] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4180] <... futex resumed>) = 0 [pid 4178] <... futex resumed>) = 1 [pid 4180] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4178] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4180] <... write resumed>) = 8 [pid 4179] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4180] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4179] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4180] <... futex resumed>) = 1 [pid 4178] <... futex resumed>) = 0 [pid 4180] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4179] <... futex resumed>) = 0 [pid 4178] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4179] read(5, [pid 4178] <... futex resumed>) = 0 [pid 4179] <... read resumed>NULL, 0) = 0 [pid 4178] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4179] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4178] <... futex resumed>) = 0 [pid 4179] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4178] exit_group(0 [pid 4180] <... futex resumed>) = ? [pid 4179] <... futex resumed>) = ? [pid 4178] <... exit_group resumed>) = ? [pid 4179] +++ exited with 0 +++ [pid 4180] +++ exited with 0 +++ [pid 4178] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4178, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4181 ./strace-static-x86_64: Process 4181 attached [pid 4181] set_robust_list(0x555556e316e0, 24) = 0 [pid 4181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4181] setpgid(0, 0) = 0 [pid 4181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4181] write(3, "1000", 4) = 4 [pid 4181] close(3) = 0 [pid 4181] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4181] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4181] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4181] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4182], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4182 ./strace-static-x86_64: Process 4182 attached [pid 4181] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4182] set_robust_list(0x7fbc2b61e9e0, 24 [pid 4181] <... futex resumed>) = 0 [pid 4181] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4182] <... set_robust_list resumed>) = 0 [pid 4182] memfd_create("syzkaller", 0) = 3 [pid 4182] ftruncate(3, 0) = 0 [pid 4182] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4182] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4182] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4182] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4182] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4181] <... futex resumed>) = 0 [pid 4181] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4181] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4182] pipe2([5, 6], 0) = 0 [pid 4182] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4181] <... futex resumed>) = 0 [pid 4181] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4181] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4182] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4182] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4181] <... futex resumed>) = 0 [pid 4181] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4181] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4182] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4181] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4181] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4181] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4181] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4181] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4181] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4181] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4183], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4183 [pid 4181] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4181] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4183 attached [pid 4183] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4183] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4182] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4183] <... write resumed>) = 8 [pid 4182] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4182] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4183] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4181] <... futex resumed>) = 0 [pid 4181] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4182] <... futex resumed>) = 0 [pid 4181] <... futex resumed>) = 1 [pid 4182] read(5, [pid 4181] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4182] <... read resumed>NULL, 0) = 0 [pid 4182] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4181] <... futex resumed>) = 0 [pid 4182] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4181] exit_group(0 [pid 4182] <... futex resumed>) = ? [pid 4181] <... exit_group resumed>) = ? [pid 4182] +++ exited with 0 +++ [pid 4183] <... futex resumed>) = ? [pid 4183] +++ exited with 0 +++ [pid 4181] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4181, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4184 ./strace-static-x86_64: Process 4184 attached [pid 4184] set_robust_list(0x555556e316e0, 24) = 0 [pid 4184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4184] setpgid(0, 0) = 0 [pid 4184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4184] write(3, "1000", 4) = 4 [pid 4184] close(3) = 0 [pid 4184] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4184] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4184] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4184] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4185], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4185 ./strace-static-x86_64: Process 4185 attached [pid 4184] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4185] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4185] memfd_create("syzkaller", 0) = 3 [pid 4185] ftruncate(3, 0) = 0 [pid 4185] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4185] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4185] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4185] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4185] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4185] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4184] <... futex resumed>) = 1 [pid 4185] <... futex resumed>) = 0 [pid 4184] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4185] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4184] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4185] <... futex resumed>) = 0 [pid 4185] pipe2([5, 6], 0) = 0 [pid 4184] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4185] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4184] <... futex resumed>) = 0 [pid 4184] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4185] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4184] <... futex resumed>) = 0 [pid 4184] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4185] <... write resumed>) = 64568 [pid 4185] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4184] <... futex resumed>) = 0 [pid 4184] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4184] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4185] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4184] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4184] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4184] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4184] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4184] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4184] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4184] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4186], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4186 [pid 4184] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4184] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4186 attached [pid 4186] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4186] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4185] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4185] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4185] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4186] <... write resumed>) = 8 [pid 4186] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4184] <... futex resumed>) = 0 [pid 4184] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4185] <... futex resumed>) = 0 [pid 4184] <... futex resumed>) = 1 [pid 4185] read(5, [pid 4184] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4185] <... read resumed>NULL, 0) = 0 [pid 4185] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4184] <... futex resumed>) = 0 [pid 4185] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4184] exit_group(0 [pid 4185] <... futex resumed>) = ? [pid 4184] <... exit_group resumed>) = ? [pid 4185] +++ exited with 0 +++ [pid 4186] <... futex resumed>) = ? [pid 4186] +++ exited with 0 +++ [pid 4184] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4184, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4187 ./strace-static-x86_64: Process 4187 attached [pid 4187] set_robust_list(0x555556e316e0, 24) = 0 [pid 4187] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4187] setpgid(0, 0) = 0 [pid 4187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4187] write(3, "1000", 4) = 4 [pid 4187] close(3) = 0 [pid 4187] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4187] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4187] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4187] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4188], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4188 [pid 4187] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 4188 attached ) = 0 [pid 4187] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4188] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4188] memfd_create("syzkaller", 0) = 3 [pid 4188] ftruncate(3, 0) = 0 [pid 4188] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4188] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4188] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4188] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4188] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4187] <... futex resumed>) = 0 [pid 4187] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4187] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4188] pipe2([5, 6], 0) = 0 [pid 4188] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4187] <... futex resumed>) = 0 [pid 4187] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4187] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4188] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4188] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4187] <... futex resumed>) = 0 [pid 4187] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4188] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4187] <... futex resumed>) = 0 [pid 4187] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4187] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4187] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4187] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4187] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4187] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4187] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4187] clone(child_stack=0x7fbc2b5fd2f0, 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 4189 attached , parent_tid=[4189], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4189 [pid 4189] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4187] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4189] <... set_robust_list resumed>) = 0 [pid 4187] <... futex resumed>) = 0 [pid 4189] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4187] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4189] <... write resumed>) = 8 [pid 4188] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4189] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4188] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4189] <... futex resumed>) = 1 [pid 4188] <... futex resumed>) = 0 [pid 4187] <... futex resumed>) = 0 [pid 4189] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4188] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4187] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4188] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4187] <... futex resumed>) = 0 [pid 4188] read(5, [pid 4187] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4188] <... read resumed>NULL, 0) = 0 [pid 4188] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4187] <... futex resumed>) = 0 [pid 4188] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4187] exit_group(0 [pid 4189] <... futex resumed>) = ? [pid 4188] <... futex resumed>) = ? [pid 4187] <... exit_group resumed>) = ? [pid 4189] +++ exited with 0 +++ [pid 4188] +++ exited with 0 +++ [pid 4187] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4187, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4190 ./strace-static-x86_64: Process 4190 attached [pid 4190] set_robust_list(0x555556e316e0, 24) = 0 [pid 4190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4190] setpgid(0, 0) = 0 [pid 4190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4190] write(3, "1000", 4) = 4 [pid 4190] close(3) = 0 [pid 4190] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4190] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4190] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4190] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4191], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4191 [pid 4190] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4190] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4191 attached [pid 4191] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4191] memfd_create("syzkaller", 0) = 3 [pid 4191] ftruncate(3, 0) = 0 [pid 4191] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4191] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4191] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4191] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4191] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4190] <... futex resumed>) = 0 [pid 4190] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4190] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4191] <... futex resumed>) = 1 [pid 4191] pipe2([5, 6], 0) = 0 [pid 4191] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4190] <... futex resumed>) = 0 [pid 4190] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4190] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4191] <... futex resumed>) = 1 [pid 4191] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4191] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4190] <... futex resumed>) = 0 [pid 4191] <... futex resumed>) = 1 [pid 4190] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4191] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4190] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4190] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4190] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4190] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4190] clone(child_stack=0x7fbc2b5fd2f0, 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 4192 attached , parent_tid=[4192], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4192 [pid 4192] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4190] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4192] <... set_robust_list resumed>) = 0 [pid 4190] <... futex resumed>) = 0 [pid 4192] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4190] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4192] <... write resumed>) = 8 [pid 4191] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4192] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4191] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4192] <... futex resumed>) = 1 [pid 4191] <... futex resumed>) = 0 [pid 4192] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4191] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4190] <... futex resumed>) = 0 [pid 4190] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4191] <... futex resumed>) = 0 [pid 4190] <... futex resumed>) = 1 [pid 4191] read(5, [pid 4190] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4191] <... read resumed>NULL, 0) = 0 [pid 4191] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4190] <... futex resumed>) = 0 [pid 4191] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4190] exit_group(0 [pid 4192] <... futex resumed>) = ? [pid 4191] <... futex resumed>) = ? [pid 4190] <... exit_group resumed>) = ? [pid 4192] +++ exited with 0 +++ [pid 4191] +++ exited with 0 +++ [pid 4190] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4190, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4193 attached , child_tidptr=0x555556e316d0) = 4193 [pid 4193] set_robust_list(0x555556e316e0, 24) = 0 [pid 4193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4193] setpgid(0, 0) = 0 [pid 4193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4193] write(3, "1000", 4) = 4 [pid 4193] close(3) = 0 [pid 4193] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4193] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4193] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4193] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4194], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4194 [pid 4193] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4193] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4194 attached [pid 4194] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4194] memfd_create("syzkaller", 0) = 3 [pid 4194] ftruncate(3, 0) = 0 [pid 4194] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4194] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4194] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4194] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4194] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4193] <... futex resumed>) = 0 [pid 4193] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4193] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4194] <... futex resumed>) = 1 [pid 4194] pipe2([5, 6], 0) = 0 [pid 4194] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4193] <... futex resumed>) = 0 [pid 4193] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4193] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4194] <... futex resumed>) = 1 [pid 4194] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4194] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4193] <... futex resumed>) = 0 [pid 4193] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4193] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4194] <... futex resumed>) = 1 [pid 4194] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4193] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4193] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4193] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4193] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4193] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4193] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4195], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4195 [pid 4193] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4193] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4195 attached [pid 4195] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4195] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4195] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4193] <... futex resumed>) = 0 [pid 4193] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4193] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4195] <... futex resumed>) = 1 [pid 4195] read(5, NULL, 0) = 0 [pid 4195] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4193] <... futex resumed>) = 0 [pid 4195] <... futex resumed>) = 1 [pid 4195] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4194] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4194] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4194] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4193] exit_group(0 [pid 4194] <... futex resumed>) = ? [pid 4193] <... exit_group resumed>) = ? [pid 4195] <... futex resumed>) = ? [pid 4194] +++ exited with 0 +++ [pid 4195] +++ exited with 0 +++ [pid 4193] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4193, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4196 ./strace-static-x86_64: Process 4196 attached [pid 4196] set_robust_list(0x555556e316e0, 24) = 0 [pid 4196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4196] setpgid(0, 0) = 0 [pid 4196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4196] write(3, "1000", 4) = 4 [pid 4196] close(3) = 0 [pid 4196] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4196] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4196] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4196] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4197], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4197 [pid 4196] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4196] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4197 attached [pid 4197] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4197] memfd_create("syzkaller", 0) = 3 [pid 4197] ftruncate(3, 0) = 0 [pid 4197] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4197] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4197] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4197] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4197] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4196] <... futex resumed>) = 0 [pid 4196] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4196] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4197] <... futex resumed>) = 1 [pid 4197] pipe2([5, 6], 0) = 0 [pid 4197] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4196] <... futex resumed>) = 0 [pid 4196] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4196] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4197] <... futex resumed>) = 1 [pid 4197] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4197] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4196] <... futex resumed>) = 0 [pid 4196] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4196] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4197] <... futex resumed>) = 1 [pid 4197] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4196] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4196] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4196] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4196] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4196] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4198], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4198 [pid 4196] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4196] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4198 attached [pid 4198] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4198] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4198] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4196] <... futex resumed>) = 0 [pid 4196] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4196] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4197] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4198] <... futex resumed>) = 1 [pid 4198] read(5, NULL, 0) = 0 [pid 4198] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4196] <... futex resumed>) = 0 [pid 4198] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4197] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4197] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4196] exit_group(0 [pid 4197] <... futex resumed>) = ? [pid 4196] <... exit_group resumed>) = ? [pid 4198] <... futex resumed>) = ? [pid 4197] +++ exited with 0 +++ [pid 4198] +++ exited with 0 +++ [pid 4196] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4196, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4199 ./strace-static-x86_64: Process 4199 attached [pid 4199] set_robust_list(0x555556e316e0, 24) = 0 [pid 4199] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4199] setpgid(0, 0) = 0 [pid 4199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4199] write(3, "1000", 4) = 4 [pid 4199] close(3) = 0 [pid 4199] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4199] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4199] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4199] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4200], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4200 [pid 4199] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4199] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4200 attached [pid 4200] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4200] memfd_create("syzkaller", 0) = 3 [pid 4200] ftruncate(3, 0) = 0 [pid 4200] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4200] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4200] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4200] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4200] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4199] <... futex resumed>) = 0 [pid 4199] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4199] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4200] <... futex resumed>) = 1 [pid 4200] pipe2([5, 6], 0) = 0 [pid 4200] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4199] <... futex resumed>) = 0 [pid 4199] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4199] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4200] <... futex resumed>) = 1 [pid 4200] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4200] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4199] <... futex resumed>) = 0 [pid 4199] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4199] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4200] <... futex resumed>) = 1 [pid 4200] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4199] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4199] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4199] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4199] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4199] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4199] clone(child_stack=0x7fbc2b5fd2f0, 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 4201 attached [pid 4201] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4199] <... clone resumed>, parent_tid=[4201], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4201 [pid 4201] <... set_robust_list resumed>) = 0 [pid 4199] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4201] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4199] <... futex resumed>) = 0 [pid 4201] <... write resumed>) = 8 [pid 4200] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4199] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4201] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4200] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4199] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4201] <... futex resumed>) = 0 [pid 4200] <... futex resumed>) = 0 [pid 4199] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4201] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4200] read(5, [pid 4199] <... futex resumed>) = 0 [pid 4200] <... read resumed>NULL, 0) = 0 [pid 4199] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4200] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4199] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4200] <... futex resumed>) = 0 [pid 4199] exit_group(0 [pid 4201] <... futex resumed>) = ? [pid 4199] <... exit_group resumed>) = ? [pid 4201] +++ exited with 0 +++ [pid 4200] +++ exited with 0 +++ [pid 4199] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4199, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4202 ./strace-static-x86_64: Process 4202 attached [pid 4202] set_robust_list(0x555556e316e0, 24) = 0 [pid 4202] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4202] setpgid(0, 0) = 0 [pid 4202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4202] write(3, "1000", 4) = 4 [pid 4202] close(3) = 0 [pid 4202] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4202] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4202] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4202] clone(child_stack=0x7fbc2b61e2f0, 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 4203 attached , parent_tid=[4203], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4203 [pid 4202] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4202] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4203] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4203] memfd_create("syzkaller", 0) = 3 [pid 4203] ftruncate(3, 0) = 0 [pid 4203] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4203] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4203] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4203] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4203] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4203] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4202] <... futex resumed>) = 0 [pid 4202] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4202] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4203] <... futex resumed>) = 0 [pid 4203] pipe2([5, 6], 0) = 0 [pid 4203] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4202] <... futex resumed>) = 0 [pid 4202] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4202] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4203] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4203] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4202] <... futex resumed>) = 0 [pid 4202] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4202] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4203] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4202] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4202] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4202] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4202] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4202] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4202] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4202] clone(child_stack=0x7fbc2b5fd2f0, 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 4204 attached , parent_tid=[4204], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4204 [pid 4204] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4202] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4204] <... set_robust_list resumed>) = 0 [pid 4202] <... futex resumed>) = 0 [pid 4204] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4202] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4204] <... write resumed>) = 8 [pid 4204] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4202] <... futex resumed>) = 0 [pid 4204] read(5, [pid 4202] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4204] <... read resumed>NULL, 0) = 0 [pid 4202] <... futex resumed>) = 0 [pid 4204] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4202] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4204] <... futex resumed>) = 0 [pid 4202] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4204] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4203] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4203] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4203] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4202] exit_group(0 [pid 4203] <... futex resumed>) = ? [pid 4202] <... exit_group resumed>) = ? [pid 4203] +++ exited with 0 +++ [pid 4204] <... futex resumed>) = ? [pid 4204] +++ exited with 0 +++ [pid 4202] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4202, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4205 ./strace-static-x86_64: Process 4205 attached [pid 4205] set_robust_list(0x555556e316e0, 24) = 0 [pid 4205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4205] setpgid(0, 0) = 0 [pid 4205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4205] write(3, "1000", 4) = 4 [pid 4205] close(3) = 0 [pid 4205] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4205] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4205] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4205] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4206], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4206 [pid 4205] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4205] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4206 attached [pid 4206] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4206] memfd_create("syzkaller", 0) = 3 [pid 4206] ftruncate(3, 0) = 0 [pid 4206] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4206] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4206] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4206] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4206] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4205] <... futex resumed>) = 0 [pid 4206] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4205] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4205] <... futex resumed>) = 0 [pid 4206] pipe2( [pid 4205] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4206] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4206] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4205] <... futex resumed>) = 0 [pid 4206] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4205] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4205] <... futex resumed>) = 0 [pid 4205] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4206] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4206] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4205] <... futex resumed>) = 0 [pid 4205] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4205] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4206] <... futex resumed>) = 1 [pid 4206] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4205] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4205] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4205] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4205] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4205] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4205] clone(child_stack=0x7fbc2b5fd2f0, 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 4207 attached [pid 4207] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4205] <... clone resumed>, parent_tid=[4207], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4207 [pid 4207] <... set_robust_list resumed>) = 0 [pid 4205] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4207] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4206] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4205] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4207] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4206] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4207] <... futex resumed>) = 0 [pid 4206] <... futex resumed>) = 0 [pid 4205] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4207] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4206] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 4205] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4206] read(5, NULL, 0) = 0 [pid 4205] <... futex resumed>) = 0 [pid 4206] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4205] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4206] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4205] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4205] exit_group(0 [pid 4206] <... futex resumed>) = ? [pid 4205] <... exit_group resumed>) = ? [pid 4207] <... futex resumed>) = ? [pid 4206] +++ exited with 0 +++ [pid 4207] +++ exited with 0 +++ [pid 4205] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4205, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4208 ./strace-static-x86_64: Process 4208 attached [pid 4208] set_robust_list(0x555556e316e0, 24) = 0 [pid 4208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4208] setpgid(0, 0) = 0 [pid 4208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4208] write(3, "1000", 4) = 4 [pid 4208] close(3) = 0 [pid 4208] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4208] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4208] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4208] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4209], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4209 [pid 4208] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4208] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4209 attached [pid 4209] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4209] memfd_create("syzkaller", 0) = 3 [pid 4209] ftruncate(3, 0) = 0 [pid 4209] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4209] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4209] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4209] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4209] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4208] <... futex resumed>) = 0 [pid 4208] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4208] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4209] <... futex resumed>) = 1 [pid 4209] pipe2([5, 6], 0) = 0 [pid 4209] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4208] <... futex resumed>) = 0 [pid 4208] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4208] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4209] <... futex resumed>) = 1 [pid 4209] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4209] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4208] <... futex resumed>) = 0 [pid 4208] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4208] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4209] <... futex resumed>) = 1 [pid 4209] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4208] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4208] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4208] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4208] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4208] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4208] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4210], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4210 [pid 4208] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4208] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4210 attached [pid 4210] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4210] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4209] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4209] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4209] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4210] <... write resumed>) = 8 [pid 4210] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4208] <... futex resumed>) = 0 [pid 4208] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4209] <... futex resumed>) = 0 [pid 4208] <... futex resumed>) = 1 [pid 4209] read(5, [pid 4208] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4209] <... read resumed>NULL, 0) = 0 [pid 4209] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4208] <... futex resumed>) = 0 [pid 4209] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4208] exit_group(0 [pid 4209] <... futex resumed>) = ? [pid 4208] <... exit_group resumed>) = ? [pid 4209] +++ exited with 0 +++ [pid 4210] <... futex resumed>) = ? [pid 4210] +++ exited with 0 +++ [pid 4208] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4208, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4211 ./strace-static-x86_64: Process 4211 attached [pid 4211] set_robust_list(0x555556e316e0, 24) = 0 [pid 4211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4211] setpgid(0, 0) = 0 [pid 4211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4211] write(3, "1000", 4) = 4 [pid 4211] close(3) = 0 [pid 4211] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4211] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4211] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4211] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4212], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4212 [pid 4211] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4211] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4212 attached [pid 4212] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4212] memfd_create("syzkaller", 0) = 3 [pid 4212] ftruncate(3, 0) = 0 [pid 4212] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4212] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4212] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4212] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4212] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4211] <... futex resumed>) = 0 [pid 4211] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4211] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4212] pipe2([5, 6], 0) = 0 [pid 4212] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4211] <... futex resumed>) = 0 [pid 4211] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4211] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4212] <... futex resumed>) = 1 [pid 4212] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4212] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4212] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4211] <... futex resumed>) = 0 [pid 4211] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4212] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4211] <... futex resumed>) = 0 [pid 4212] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4211] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4211] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4211] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4211] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4211] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4211] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4211] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4213], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4213 [pid 4211] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4211] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4213 attached [pid 4213] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4213] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4212] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4213] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4212] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4213] <... futex resumed>) = 1 [pid 4212] <... futex resumed>) = 0 [pid 4211] <... futex resumed>) = 0 [pid 4212] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4211] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4212] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4211] <... futex resumed>) = 0 [pid 4212] read(5, [pid 4211] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4212] <... read resumed>NULL, 0) = 0 [pid 4212] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4211] <... futex resumed>) = 0 [pid 4212] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4211] exit_group(0 [pid 4212] <... futex resumed>) = ? [pid 4211] <... exit_group resumed>) = ? [pid 4212] +++ exited with 0 +++ [pid 4213] +++ exited with 0 +++ [pid 4211] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4211, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4214 ./strace-static-x86_64: Process 4214 attached [pid 4214] set_robust_list(0x555556e316e0, 24) = 0 [pid 4214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4214] setpgid(0, 0) = 0 [pid 4214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4214] write(3, "1000", 4) = 4 [pid 4214] close(3) = 0 [pid 4214] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4214] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4214] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4214] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4215], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4215 [pid 4214] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4214] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4215 attached [pid 4215] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4215] memfd_create("syzkaller", 0) = 3 [pid 4215] ftruncate(3, 0) = 0 [pid 4215] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4215] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4215] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4215] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4215] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4214] <... futex resumed>) = 0 [pid 4214] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4214] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4215] <... futex resumed>) = 1 [pid 4215] pipe2([5, 6], 0) = 0 [pid 4215] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4214] <... futex resumed>) = 0 [pid 4214] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4215] <... futex resumed>) = 1 [pid 4215] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4214] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4215] <... write resumed>) = 64568 [pid 4215] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4214] <... futex resumed>) = 0 [pid 4215] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4214] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4215] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4214] <... futex resumed>) = 0 [pid 4215] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4214] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4214] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4214] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4214] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4214] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4214] clone(child_stack=0x7fbc2b5fd2f0, 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 4216 attached , parent_tid=[4216], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4216 [pid 4216] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4214] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4216] <... set_robust_list resumed>) = 0 [pid 4214] <... futex resumed>) = 0 [pid 4216] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4214] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4216] <... write resumed>) = 8 [pid 4216] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4215] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4214] <... futex resumed>) = 0 [pid 4215] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4214] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4216] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4215] <... futex resumed>) = 0 [pid 4214] <... futex resumed>) = 0 [pid 4215] read(5, [pid 4214] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4215] <... read resumed>NULL, 0) = 0 [pid 4215] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4215] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4214] <... futex resumed>) = 0 [pid 4214] exit_group(0 [pid 4215] <... futex resumed>) = ? [pid 4214] <... exit_group resumed>) = ? [pid 4216] <... futex resumed>) = ? [pid 4215] +++ exited with 0 +++ [pid 4216] +++ exited with 0 +++ [pid 4214] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4214, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4217 attached , child_tidptr=0x555556e316d0) = 4217 [pid 4217] set_robust_list(0x555556e316e0, 24) = 0 [pid 4217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4217] setpgid(0, 0) = 0 [pid 4217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4217] write(3, "1000", 4) = 4 [pid 4217] close(3) = 0 [pid 4217] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4217] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4217] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4217] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4218], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4218 [pid 4217] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4217] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4218 attached [pid 4218] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4218] memfd_create("syzkaller", 0) = 3 [pid 4218] ftruncate(3, 0) = 0 [pid 4218] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4218] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4218] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4218] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4218] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4217] <... futex resumed>) = 0 [pid 4217] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4217] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4218] <... futex resumed>) = 1 [pid 4218] pipe2([5, 6], 0) = 0 [pid 4218] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4217] <... futex resumed>) = 0 [pid 4217] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4217] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4218] <... futex resumed>) = 1 [pid 4218] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4218] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4217] <... futex resumed>) = 0 [pid 4217] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4217] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4218] <... futex resumed>) = 1 [pid 4218] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4217] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4217] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4217] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4217] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4217] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4219], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4219 ./strace-static-x86_64: Process 4219 attached [pid 4217] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4217] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4219] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4219] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4218] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4219] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4217] <... futex resumed>) = 0 [pid 4218] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4217] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4219] read(5, [pid 4217] <... futex resumed>) = 0 [pid 4219] <... read resumed>NULL, 0) = 0 [pid 4218] <... futex resumed>) = 0 [pid 4217] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4219] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4218] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4217] <... futex resumed>) = 0 [pid 4219] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4217] exit_group(0 [pid 4219] <... futex resumed>) = ? [pid 4218] <... futex resumed>) = ? [pid 4217] <... exit_group resumed>) = ? [pid 4218] +++ exited with 0 +++ [pid 4219] +++ exited with 0 +++ [pid 4217] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4217, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4220 ./strace-static-x86_64: Process 4220 attached [pid 4220] set_robust_list(0x555556e316e0, 24) = 0 [pid 4220] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4220] setpgid(0, 0) = 0 [pid 4220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4220] write(3, "1000", 4) = 4 [pid 4220] close(3) = 0 [pid 4220] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4220] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4220] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4220] clone(child_stack=0x7fbc2b61e2f0, 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 4221 attached [pid 4221] set_robust_list(0x7fbc2b61e9e0, 24 [pid 4220] <... clone resumed>, parent_tid=[4221], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4221 [pid 4220] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4220] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4221] <... set_robust_list resumed>) = 0 [pid 4221] memfd_create("syzkaller", 0) = 3 [pid 4221] ftruncate(3, 0) = 0 [pid 4221] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4221] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4221] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4221] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4221] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4220] <... futex resumed>) = 0 [pid 4220] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4220] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4221] <... futex resumed>) = 1 [pid 4221] pipe2([5, 6], 0) = 0 [pid 4221] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4220] <... futex resumed>) = 0 [pid 4220] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4220] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4221] <... futex resumed>) = 1 [pid 4221] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4221] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4220] <... futex resumed>) = 0 [pid 4221] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4220] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4220] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4220] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4220] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4220] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4220] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4220] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4220] clone(child_stack=0x7fbc2b5fd2f0, 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 4222 attached [pid 4222] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4220] <... clone resumed>, parent_tid=[4222], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4222 [pid 4222] <... set_robust_list resumed>) = 0 [pid 4220] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4222] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4220] <... futex resumed>) = 0 [pid 4220] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4222] <... write resumed>) = 8 [pid 4221] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4222] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4221] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4222] <... futex resumed>) = 1 [pid 4221] <... futex resumed>) = 0 [pid 4220] <... futex resumed>) = 0 [pid 4222] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4221] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4220] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4221] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4220] <... futex resumed>) = 0 [pid 4221] read(5, [pid 4220] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4221] <... read resumed>NULL, 0) = 0 [pid 4221] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4220] <... futex resumed>) = 0 [pid 4221] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4220] exit_group(0 [pid 4222] <... futex resumed>) = ? [pid 4221] <... futex resumed>) = ? [pid 4220] <... exit_group resumed>) = ? [pid 4222] +++ exited with 0 +++ [pid 4221] +++ exited with 0 +++ [pid 4220] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4220, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4223 ./strace-static-x86_64: Process 4223 attached [pid 4223] set_robust_list(0x555556e316e0, 24) = 0 [pid 4223] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4223] setpgid(0, 0) = 0 [pid 4223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4223] write(3, "1000", 4) = 4 [pid 4223] close(3) = 0 [pid 4223] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4223] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4223] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4223] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4224], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4224 [pid 4223] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4223] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4224 attached [pid 4224] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4224] memfd_create("syzkaller", 0) = 3 [pid 4224] ftruncate(3, 0) = 0 [pid 4224] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4224] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4224] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4224] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4224] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4223] <... futex resumed>) = 0 [pid 4223] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4223] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4224] <... futex resumed>) = 1 [pid 4224] pipe2([5, 6], 0) = 0 [pid 4224] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4223] <... futex resumed>) = 0 [pid 4223] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4223] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4224] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4224] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4223] <... futex resumed>) = 0 [pid 4224] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4223] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4224] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4223] <... futex resumed>) = 0 [pid 4224] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4223] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4223] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4223] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4223] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4223] clone(child_stack=0x7fbc2b5fd2f0, 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 4225 attached [pid 4225] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4223] <... clone resumed>, parent_tid=[4225], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4225 [pid 4225] <... set_robust_list resumed>) = 0 [pid 4223] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4225] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4223] <... futex resumed>) = 0 [pid 4225] <... write resumed>) = 8 [pid 4223] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4225] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4223] <... futex resumed>) = 0 [pid 4225] read(5, [pid 4224] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4223] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4225] <... read resumed>NULL, 0) = 0 [pid 4224] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4223] <... futex resumed>) = 0 [pid 4225] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4224] <... futex resumed>) = 0 [pid 4223] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4225] <... futex resumed>) = 0 [pid 4224] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4223] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4225] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4223] exit_group(0 [pid 4225] <... futex resumed>) = ? [pid 4224] <... futex resumed>) = ? [pid 4223] <... exit_group resumed>) = ? [pid 4224] +++ exited with 0 +++ [pid 4225] +++ exited with 0 +++ [pid 4223] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4223, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4226 ./strace-static-x86_64: Process 4226 attached [pid 4226] set_robust_list(0x555556e316e0, 24) = 0 [pid 4226] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4226] setpgid(0, 0) = 0 [pid 4226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4226] write(3, "1000", 4) = 4 [pid 4226] close(3) = 0 [pid 4226] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4226] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4226] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4226] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4227], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4227 [pid 4226] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4226] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4227 attached [pid 4227] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4227] memfd_create("syzkaller", 0) = 3 [pid 4227] ftruncate(3, 0) = 0 [pid 4227] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4227] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4227] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4227] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4227] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4226] <... futex resumed>) = 0 [pid 4226] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4226] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4227] <... futex resumed>) = 1 [pid 4227] pipe2([5, 6], 0) = 0 [pid 4227] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4226] <... futex resumed>) = 0 [pid 4226] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4226] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4227] <... futex resumed>) = 1 [pid 4227] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4227] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4226] <... futex resumed>) = 0 [pid 4226] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4226] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4227] <... futex resumed>) = 1 [pid 4227] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4226] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4226] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4226] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4226] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4226] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4226] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4228], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4228 [pid 4226] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4226] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4228 attached [pid 4228] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4228] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4227] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4227] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4227] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4228] <... write resumed>) = 8 [pid 4228] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4226] <... futex resumed>) = 0 [pid 4226] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4227] <... futex resumed>) = 0 [pid 4226] <... futex resumed>) = 1 [pid 4227] read(5, [pid 4226] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4227] <... read resumed>NULL, 0) = 0 [pid 4227] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4226] <... futex resumed>) = 0 [pid 4227] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4226] exit_group(0 [pid 4227] <... futex resumed>) = ? [pid 4226] <... exit_group resumed>) = ? [pid 4227] +++ exited with 0 +++ [pid 4228] <... futex resumed>) = ? [pid 4228] +++ exited with 0 +++ [pid 4226] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4226, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4229 ./strace-static-x86_64: Process 4229 attached [pid 4229] set_robust_list(0x555556e316e0, 24) = 0 [pid 4229] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4229] setpgid(0, 0) = 0 [pid 4229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4229] write(3, "1000", 4) = 4 [pid 4229] close(3) = 0 [pid 4229] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4229] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4229] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4229] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4230], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4230 [pid 4229] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4229] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4230 attached [pid 4230] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4230] memfd_create("syzkaller", 0) = 3 [pid 4230] ftruncate(3, 0) = 0 [pid 4230] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4230] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4230] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4230] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4230] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4229] <... futex resumed>) = 0 [pid 4229] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4229] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4230] <... futex resumed>) = 1 [pid 4230] pipe2([5, 6], 0) = 0 [pid 4230] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4229] <... futex resumed>) = 0 [pid 4229] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4229] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4230] <... futex resumed>) = 1 [pid 4230] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4230] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4229] <... futex resumed>) = 0 [pid 4229] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4229] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4230] <... futex resumed>) = 1 [pid 4230] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4229] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4229] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4229] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4229] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4229] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4229] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4229] clone(child_stack=0x7fbc2b5fd2f0, 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 4231 attached [pid 4231] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4229] <... clone resumed>, parent_tid=[4231], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4231 [pid 4231] <... set_robust_list resumed>) = 0 [pid 4229] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4231] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4229] <... futex resumed>) = 0 [pid 4229] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4231] <... write resumed>) = 8 [pid 4230] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4231] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4230] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4231] <... futex resumed>) = 1 [pid 4230] <... futex resumed>) = 0 [pid 4229] <... futex resumed>) = 0 [pid 4231] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4230] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4229] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4230] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4229] <... futex resumed>) = 0 [pid 4230] read(5, [pid 4229] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4230] <... read resumed>NULL, 0) = 0 [pid 4230] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4229] <... futex resumed>) = 0 [pid 4230] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4229] exit_group(0 [pid 4231] <... futex resumed>) = ? [pid 4230] <... futex resumed>) = ? [pid 4229] <... exit_group resumed>) = ? [pid 4231] +++ exited with 0 +++ [pid 4230] +++ exited with 0 +++ [pid 4229] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4229, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4232 attached , child_tidptr=0x555556e316d0) = 4232 [pid 4232] set_robust_list(0x555556e316e0, 24) = 0 [pid 4232] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4232] setpgid(0, 0) = 0 [pid 4232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4232] write(3, "1000", 4) = 4 [pid 4232] close(3) = 0 [pid 4232] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4232] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4232] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4232] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4233], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4233 [pid 4232] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4232] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4233 attached [pid 4233] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4233] memfd_create("syzkaller", 0) = 3 [pid 4233] ftruncate(3, 0) = 0 [pid 4233] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4233] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4233] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4233] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4233] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4232] <... futex resumed>) = 0 [pid 4232] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4232] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4233] <... futex resumed>) = 1 [pid 4233] pipe2([5, 6], 0) = 0 [pid 4233] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4232] <... futex resumed>) = 0 [pid 4232] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4232] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4233] <... futex resumed>) = 1 [pid 4233] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4233] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4232] <... futex resumed>) = 0 [pid 4232] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4232] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4233] <... futex resumed>) = 1 [pid 4233] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4232] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4232] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4232] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4232] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4232] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4232] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4234], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4234 [pid 4232] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4232] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4234 attached [pid 4234] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4234] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4233] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4233] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4233] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4234] <... write resumed>) = 8 [pid 4234] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4232] <... futex resumed>) = 0 [pid 4232] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4233] <... futex resumed>) = 0 [pid 4232] <... futex resumed>) = 1 [pid 4233] read(5, [pid 4232] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4233] <... read resumed>NULL, 0) = 0 [pid 4233] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4232] <... futex resumed>) = 0 [pid 4233] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4232] exit_group(0 [pid 4233] <... futex resumed>) = ? [pid 4232] <... exit_group resumed>) = ? [pid 4233] +++ exited with 0 +++ [pid 4234] <... futex resumed>) = ? [pid 4234] +++ exited with 0 +++ [pid 4232] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4232, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4235 ./strace-static-x86_64: Process 4235 attached [pid 4235] set_robust_list(0x555556e316e0, 24) = 0 [pid 4235] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4235] setpgid(0, 0) = 0 [pid 4235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4235] write(3, "1000", 4) = 4 [pid 4235] close(3) = 0 [pid 4235] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4235] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4235] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4235] clone(child_stack=0x7fbc2b61e2f0, 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 4236 attached [pid 4236] set_robust_list(0x7fbc2b61e9e0, 24 [pid 4235] <... clone resumed>, parent_tid=[4236], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4236 [pid 4236] <... set_robust_list resumed>) = 0 [pid 4236] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4235] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4236] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4235] <... futex resumed>) = 0 [pid 4236] memfd_create("syzkaller", 0 [pid 4235] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4236] <... memfd_create resumed>) = 3 [pid 4236] ftruncate(3, 0) = 0 [pid 4236] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4236] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4236] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4236] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4236] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4235] <... futex resumed>) = 0 [pid 4235] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4235] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4236] pipe2([5, 6], 0) = 0 [pid 4236] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4235] <... futex resumed>) = 0 [pid 4235] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4235] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4236] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4236] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4235] <... futex resumed>) = 0 [pid 4235] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4235] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4236] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4235] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4235] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4235] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4235] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4235] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4237], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4237 [pid 4235] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4235] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4237 attached [pid 4237] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4237] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4236] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4237] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4236] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4237] <... futex resumed>) = 1 [pid 4236] <... futex resumed>) = 0 [pid 4235] <... futex resumed>) = 0 [pid 4237] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4236] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4235] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4236] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4235] <... futex resumed>) = 0 [pid 4236] read(5, [pid 4235] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4236] <... read resumed>NULL, 0) = 0 [pid 4236] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4235] <... futex resumed>) = 0 [pid 4236] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4235] exit_group(0 [pid 4237] <... futex resumed>) = ? [pid 4236] <... futex resumed>) = ? [pid 4235] <... exit_group resumed>) = ? [pid 4237] +++ exited with 0 +++ [pid 4236] +++ exited with 0 +++ [pid 4235] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4235, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4238 ./strace-static-x86_64: Process 4238 attached [pid 4238] set_robust_list(0x555556e316e0, 24) = 0 [pid 4238] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4238] setpgid(0, 0) = 0 [pid 4238] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4238] write(3, "1000", 4) = 4 [pid 4238] close(3) = 0 [pid 4238] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4238] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4238] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4238] clone(child_stack=0x7fbc2b61e2f0, 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 4239 attached , parent_tid=[4239], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4239 [pid 4239] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4239] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4238] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4239] <... futex resumed>) = 0 [pid 4239] memfd_create("syzkaller", 0 [pid 4238] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4239] <... memfd_create resumed>) = 3 [pid 4239] ftruncate(3, 0) = 0 [pid 4239] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4239] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4239] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4239] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4239] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4238] <... futex resumed>) = 0 [pid 4238] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4238] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4239] pipe2([5, 6], 0) = 0 [pid 4239] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4238] <... futex resumed>) = 0 [pid 4238] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4238] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4239] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4239] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4238] <... futex resumed>) = 0 [pid 4238] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4238] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4239] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4238] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4238] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4238] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4238] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4238] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4238] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4238] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4240], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4240 [pid 4238] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4238] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4240 attached [pid 4240] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4240] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4239] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4240] <... write resumed>) = 8 [pid 4239] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4239] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4240] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4238] <... futex resumed>) = 0 [pid 4238] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4239] <... futex resumed>) = 0 [pid 4238] <... futex resumed>) = 1 [pid 4239] read(5, [pid 4238] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4239] <... read resumed>NULL, 0) = 0 [pid 4239] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4238] <... futex resumed>) = 0 [pid 4239] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4238] exit_group(0 [pid 4239] <... futex resumed>) = ? [pid 4238] <... exit_group resumed>) = ? [pid 4239] +++ exited with 0 +++ [pid 4240] <... futex resumed>) = ? [pid 4240] +++ exited with 0 +++ [pid 4238] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4238, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4241 attached , child_tidptr=0x555556e316d0) = 4241 [pid 4241] set_robust_list(0x555556e316e0, 24) = 0 [pid 4241] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4241] setpgid(0, 0) = 0 [pid 4241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4241] write(3, "1000", 4) = 4 [pid 4241] close(3) = 0 [pid 4241] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4241] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4241] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4241] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4242], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4242 [pid 4241] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4241] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4242 attached [pid 4242] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4242] memfd_create("syzkaller", 0) = 3 [pid 4242] ftruncate(3, 0) = 0 [pid 4242] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4242] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4242] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4242] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4242] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4241] <... futex resumed>) = 0 [pid 4241] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4241] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4242] <... futex resumed>) = 1 [pid 4242] pipe2([5, 6], 0) = 0 [pid 4242] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4241] <... futex resumed>) = 0 [pid 4241] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4241] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4242] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4242] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4241] <... futex resumed>) = 0 [pid 4241] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4241] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4242] <... futex resumed>) = 1 [pid 4242] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4241] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4241] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4241] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4241] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4241] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4241] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4243], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4243 [pid 4241] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4241] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4243 attached [pid 4243] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4243] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4242] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4242] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4242] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4243] <... write resumed>) = 8 [pid 4243] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4241] <... futex resumed>) = 0 [pid 4241] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4242] <... futex resumed>) = 0 [pid 4241] <... futex resumed>) = 1 [pid 4242] read(5, [pid 4241] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4242] <... read resumed>NULL, 0) = 0 [pid 4242] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4241] <... futex resumed>) = 0 [pid 4242] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4241] exit_group(0 [pid 4242] <... futex resumed>) = ? [pid 4241] <... exit_group resumed>) = ? [pid 4242] +++ exited with 0 +++ [pid 4243] <... futex resumed>) = ? [pid 4243] +++ exited with 0 +++ [pid 4241] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4241, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4244 attached , child_tidptr=0x555556e316d0) = 4244 [pid 4244] set_robust_list(0x555556e316e0, 24) = 0 [pid 4244] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4244] setpgid(0, 0) = 0 [pid 4244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4244] write(3, "1000", 4) = 4 [pid 4244] close(3) = 0 [pid 4244] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4244] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4244] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4244] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4245], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4245 [pid 4244] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4244] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4245 attached [pid 4245] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4245] memfd_create("syzkaller", 0) = 3 [pid 4245] ftruncate(3, 0) = 0 [pid 4245] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4245] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4245] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4245] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4245] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4244] <... futex resumed>) = 0 [pid 4244] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4244] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4245] <... futex resumed>) = 1 [pid 4245] pipe2([5, 6], 0) = 0 [pid 4245] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4244] <... futex resumed>) = 0 [pid 4244] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4245] <... futex resumed>) = 1 [pid 4244] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4245] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4245] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4245] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4244] <... futex resumed>) = 0 [pid 4244] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4244] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4245] <... futex resumed>) = 0 [pid 4245] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4244] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4244] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4244] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4244] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4244] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4244] clone(child_stack=0x7fbc2b5fd2f0, 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 4246 attached , parent_tid=[4246], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4246 [pid 4246] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4244] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4246] <... set_robust_list resumed>) = 0 [pid 4246] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4244] <... futex resumed>) = 0 [pid 4246] <... write resumed>) = 8 [pid 4245] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4244] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4246] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4245] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4244] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4246] <... futex resumed>) = 0 [pid 4245] <... futex resumed>) = 0 [pid 4244] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4246] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4245] read(5, [pid 4244] <... futex resumed>) = 0 [pid 4245] <... read resumed>NULL, 0) = 0 [pid 4244] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4245] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4244] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4245] <... futex resumed>) = 0 [pid 4245] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4244] exit_group(0 [pid 4246] <... futex resumed>) = ? [pid 4245] <... futex resumed>) = ? [pid 4244] <... exit_group resumed>) = ? [pid 4246] +++ exited with 0 +++ [pid 4245] +++ exited with 0 +++ [pid 4244] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4244, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4247 ./strace-static-x86_64: Process 4247 attached [pid 4247] set_robust_list(0x555556e316e0, 24) = 0 [pid 4247] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4247] setpgid(0, 0) = 0 [pid 4247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4247] write(3, "1000", 4) = 4 [pid 4247] close(3) = 0 [pid 4247] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4247] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4247] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4247] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4248], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4248 ./strace-static-x86_64: Process 4248 attached [pid 4247] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4247] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4248] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4248] memfd_create("syzkaller", 0) = 3 [pid 4248] ftruncate(3, 0) = 0 [pid 4248] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4248] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4248] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4248] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4248] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4248] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4247] <... futex resumed>) = 0 [pid 4247] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4247] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4248] <... futex resumed>) = 0 [pid 4248] pipe2([5, 6], 0) = 0 [pid 4248] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4248] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4247] <... futex resumed>) = 0 [pid 4247] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4247] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4248] <... futex resumed>) = 0 [pid 4248] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4248] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4247] <... futex resumed>) = 0 [pid 4248] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4247] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4247] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4247] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4247] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4247] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4247] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4247] clone(child_stack=0x7fbc2b5fd2f0, 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 4249 attached [pid 4249] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4249] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4247] <... clone resumed>, parent_tid=[4249], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4249 [pid 4247] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4247] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4249] <... futex resumed>) = 0 [pid 4249] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4248] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4248] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4248] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4249] <... write resumed>) = 8 [pid 4249] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4247] <... futex resumed>) = 0 [pid 4247] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4248] <... futex resumed>) = 0 [pid 4248] read(5, NULL, 0) = 0 [pid 4248] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4248] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4247] <... futex resumed>) = 1 [pid 4247] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4247] exit_group(0 [pid 4248] <... futex resumed>) = ? [pid 4248] +++ exited with 0 +++ [pid 4247] <... exit_group resumed>) = ? [pid 4249] +++ exited with 0 +++ [pid 4247] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4247, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4250 ./strace-static-x86_64: Process 4250 attached [pid 4250] set_robust_list(0x555556e316e0, 24) = 0 [pid 4250] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4250] setpgid(0, 0) = 0 [pid 4250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4250] write(3, "1000", 4) = 4 [pid 4250] close(3) = 0 [pid 4250] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4250] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4250] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4250] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4251], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4251 [pid 4250] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4250] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4251 attached [pid 4251] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4251] memfd_create("syzkaller", 0) = 3 [pid 4251] ftruncate(3, 0) = 0 [pid 4251] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4251] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4251] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4251] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4251] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4250] <... futex resumed>) = 0 [pid 4250] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4250] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4251] <... futex resumed>) = 1 [pid 4251] pipe2([5, 6], 0) = 0 [pid 4251] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4250] <... futex resumed>) = 0 [pid 4250] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4250] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4251] <... futex resumed>) = 1 [pid 4251] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4251] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4250] <... futex resumed>) = 0 [pid 4250] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4250] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4251] <... futex resumed>) = 1 [pid 4251] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4250] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4250] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4250] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4250] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4250] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4250] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4252], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4252 [pid 4250] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4250] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4252 attached [pid 4252] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4252] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4251] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4251] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4251] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4252] <... write resumed>) = 8 [pid 4252] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4250] <... futex resumed>) = 0 [pid 4250] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4251] <... futex resumed>) = 0 [pid 4250] <... futex resumed>) = 1 [pid 4251] read(5, [pid 4250] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4251] <... read resumed>NULL, 0) = 0 [pid 4251] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4250] <... futex resumed>) = 0 [pid 4251] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4250] exit_group(0 [pid 4251] <... futex resumed>) = ? [pid 4250] <... exit_group resumed>) = ? [pid 4251] +++ exited with 0 +++ [pid 4252] <... futex resumed>) = ? [pid 4252] +++ exited with 0 +++ [pid 4250] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4250, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4253 ./strace-static-x86_64: Process 4253 attached [pid 4253] set_robust_list(0x555556e316e0, 24) = 0 [pid 4253] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4253] setpgid(0, 0) = 0 [pid 4253] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4253] write(3, "1000", 4) = 4 [pid 4253] close(3) = 0 [pid 4253] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4253] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4253] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4253] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4254], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4254 [pid 4253] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4253] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4254 attached [pid 4254] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4254] memfd_create("syzkaller", 0) = 3 [pid 4254] ftruncate(3, 0) = 0 [pid 4254] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4254] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4254] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4254] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4254] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4253] <... futex resumed>) = 0 [pid 4253] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4253] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4254] <... futex resumed>) = 1 [pid 4254] pipe2([5, 6], 0) = 0 [pid 4254] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4253] <... futex resumed>) = 0 [pid 4253] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4253] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4254] <... futex resumed>) = 1 [pid 4254] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4254] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4253] <... futex resumed>) = 0 [pid 4253] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4253] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4254] <... futex resumed>) = 1 [pid 4254] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4253] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4253] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4253] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4253] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4253] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4253] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4253] clone(child_stack=0x7fbc2b5fd2f0, 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 4255 attached , parent_tid=[4255], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4255 [pid 4255] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4255] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4253] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4253] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4255] <... futex resumed>) = 0 [pid 4255] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4254] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4254] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4254] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4255] <... write resumed>) = 8 [pid 4255] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4253] <... futex resumed>) = 0 [pid 4253] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4254] <... futex resumed>) = 0 [pid 4253] <... futex resumed>) = 1 [pid 4254] read(5, [pid 4253] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4254] <... read resumed>NULL, 0) = 0 [pid 4254] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4253] <... futex resumed>) = 0 [pid 4254] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4253] exit_group(0 [pid 4254] <... futex resumed>) = ? [pid 4253] <... exit_group resumed>) = ? [pid 4254] +++ exited with 0 +++ [pid 4255] <... futex resumed>) = ? [pid 4255] +++ exited with 0 +++ [pid 4253] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4253, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4256 ./strace-static-x86_64: Process 4256 attached [pid 4256] set_robust_list(0x555556e316e0, 24) = 0 [pid 4256] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4256] setpgid(0, 0) = 0 [pid 4256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4256] write(3, "1000", 4) = 4 [pid 4256] close(3) = 0 [pid 4256] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4256] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4256] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4256] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4257], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4257 [pid 4256] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4256] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4257 attached [pid 4257] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4257] memfd_create("syzkaller", 0) = 3 [pid 4257] ftruncate(3, 0) = 0 [pid 4257] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4257] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4257] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4257] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4257] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4256] <... futex resumed>) = 0 [pid 4256] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4256] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4257] <... futex resumed>) = 1 [pid 4257] pipe2([5, 6], 0) = 0 [pid 4257] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4256] <... futex resumed>) = 0 [pid 4256] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4256] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4257] <... futex resumed>) = 1 [pid 4257] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4257] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4256] <... futex resumed>) = 0 [pid 4256] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4256] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4257] <... futex resumed>) = 1 [pid 4257] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4256] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4256] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4256] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4256] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4256] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4256] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4258], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4258 [pid 4256] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4256] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4258 attached [pid 4258] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4258] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4257] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4257] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4257] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4258] <... write resumed>) = 8 [pid 4258] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4256] <... futex resumed>) = 0 [pid 4256] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4257] <... futex resumed>) = 0 [pid 4256] <... futex resumed>) = 1 [pid 4257] read(5, [pid 4256] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4257] <... read resumed>NULL, 0) = 0 [pid 4257] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4256] <... futex resumed>) = 0 [pid 4257] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4256] exit_group(0 [pid 4257] <... futex resumed>) = ? [pid 4256] <... exit_group resumed>) = ? [pid 4257] +++ exited with 0 +++ [pid 4258] <... futex resumed>) = ? [pid 4258] +++ exited with 0 +++ [pid 4256] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4256, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4259 ./strace-static-x86_64: Process 4259 attached [pid 4259] set_robust_list(0x555556e316e0, 24) = 0 [pid 4259] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4259] setpgid(0, 0) = 0 [pid 4259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4259] write(3, "1000", 4) = 4 [pid 4259] close(3) = 0 [pid 4259] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4259] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4259] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4259] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4260], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4260 [pid 4259] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4259] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4260 attached [pid 4260] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4260] memfd_create("syzkaller", 0) = 3 [pid 4260] ftruncate(3, 0) = 0 [pid 4260] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4260] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4260] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4260] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4260] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4259] <... futex resumed>) = 0 [pid 4259] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4260] pipe2( [pid 4259] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4260] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4260] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4259] <... futex resumed>) = 0 [pid 4260] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4259] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4259] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4260] <... write resumed>) = 64568 [pid 4260] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4259] <... futex resumed>) = 0 [pid 4259] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4259] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4260] <... futex resumed>) = 1 [pid 4260] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4259] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4259] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4259] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4259] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4259] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4261], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4261 [pid 4259] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4259] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4261 attached [pid 4261] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4261] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4260] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4260] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4260] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4261] <... write resumed>) = 8 [pid 4261] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4259] <... futex resumed>) = 0 [pid 4259] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4260] <... futex resumed>) = 0 [pid 4259] <... futex resumed>) = 1 [pid 4260] read(5, [pid 4259] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4260] <... read resumed>NULL, 0) = 0 [pid 4260] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4259] <... futex resumed>) = 0 [pid 4260] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4259] exit_group(0 [pid 4260] <... futex resumed>) = ? [pid 4259] <... exit_group resumed>) = ? [pid 4260] +++ exited with 0 +++ [pid 4261] <... futex resumed>) = ? [pid 4261] +++ exited with 0 +++ [pid 4259] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4259, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4262 ./strace-static-x86_64: Process 4262 attached [pid 4262] set_robust_list(0x555556e316e0, 24) = 0 [pid 4262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4262] setpgid(0, 0) = 0 [pid 4262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4262] write(3, "1000", 4) = 4 [pid 4262] close(3) = 0 [pid 4262] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4262] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4262] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4262] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4263], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4263 [pid 4262] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4262] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4263 attached [pid 4263] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4263] memfd_create("syzkaller", 0) = 3 [pid 4263] ftruncate(3, 0) = 0 [pid 4263] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4263] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4263] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4263] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4263] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4262] <... futex resumed>) = 0 [pid 4262] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4262] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4263] <... futex resumed>) = 1 [pid 4263] pipe2([5, 6], 0) = 0 [pid 4263] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4262] <... futex resumed>) = 0 [pid 4262] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4262] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4263] <... futex resumed>) = 1 [pid 4263] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4263] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4262] <... futex resumed>) = 0 [pid 4263] <... futex resumed>) = 1 [pid 4262] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4262] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4263] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4262] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4262] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4262] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4262] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4262] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4264], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4264 [pid 4262] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4262] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4264 attached [pid 4264] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4264] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4263] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4263] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4263] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4264] <... write resumed>) = 8 [pid 4264] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4262] <... futex resumed>) = 0 [pid 4262] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4263] <... futex resumed>) = 0 [pid 4262] <... futex resumed>) = 1 [pid 4263] read(5, [pid 4262] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4263] <... read resumed>NULL, 0) = 0 [pid 4263] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4262] <... futex resumed>) = 0 [pid 4263] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4262] exit_group(0 [pid 4263] <... futex resumed>) = ? [pid 4262] <... exit_group resumed>) = ? [pid 4263] +++ exited with 0 +++ [pid 4264] <... futex resumed>) = ? [pid 4264] +++ exited with 0 +++ [pid 4262] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4262, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4265 ./strace-static-x86_64: Process 4265 attached [pid 4265] set_robust_list(0x555556e316e0, 24) = 0 [pid 4265] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4265] setpgid(0, 0) = 0 [pid 4265] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4265] write(3, "1000", 4) = 4 [pid 4265] close(3) = 0 [pid 4265] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4265] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4265] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4265] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4266], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4266 [pid 4265] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4265] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4266 attached [pid 4266] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4266] memfd_create("syzkaller", 0) = 3 [pid 4266] ftruncate(3, 0) = 0 [pid 4266] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4266] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4266] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4266] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4266] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4265] <... futex resumed>) = 0 [pid 4265] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4265] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4266] <... futex resumed>) = 1 [pid 4266] pipe2([5, 6], 0) = 0 [pid 4266] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4265] <... futex resumed>) = 0 [pid 4265] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4265] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4266] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4266] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4265] <... futex resumed>) = 0 [pid 4265] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4265] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4266] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4265] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4265] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4265] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4265] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4265] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4267], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4267 [pid 4265] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4265] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4267 attached [pid 4267] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4267] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4266] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4266] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4267] <... write resumed>) = 8 [pid 4266] <... futex resumed>) = 0 [pid 4266] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4267] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4265] <... futex resumed>) = 0 [pid 4265] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4266] <... futex resumed>) = 0 [pid 4265] <... futex resumed>) = 1 [pid 4266] read(5, [pid 4265] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4266] <... read resumed>NULL, 0) = 0 [pid 4266] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4265] <... futex resumed>) = 0 [pid 4266] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4265] exit_group(0 [pid 4266] <... futex resumed>) = ? [pid 4265] <... exit_group resumed>) = ? [pid 4266] +++ exited with 0 +++ [pid 4267] <... futex resumed>) = ? [pid 4267] +++ exited with 0 +++ [pid 4265] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4265, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4268 ./strace-static-x86_64: Process 4268 attached [pid 4268] set_robust_list(0x555556e316e0, 24) = 0 [pid 4268] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4268] setpgid(0, 0) = 0 [pid 4268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4268] write(3, "1000", 4) = 4 [pid 4268] close(3) = 0 [pid 4268] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4268] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4268] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4268] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4269], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4269 [pid 4268] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4268] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4269 attached [pid 4269] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4269] memfd_create("syzkaller", 0) = 3 [pid 4269] ftruncate(3, 0) = 0 [pid 4269] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4269] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4269] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4269] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4269] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4268] <... futex resumed>) = 0 [pid 4268] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4268] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4269] <... futex resumed>) = 1 [pid 4269] pipe2([5, 6], 0) = 0 [pid 4269] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4268] <... futex resumed>) = 0 [pid 4268] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4268] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4269] <... futex resumed>) = 1 [pid 4269] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4269] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4268] <... futex resumed>) = 0 [pid 4268] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4268] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4269] <... futex resumed>) = 1 [pid 4269] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4268] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4268] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4268] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4268] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4268] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4268] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4270], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4270 [pid 4268] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4268] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4270 attached [pid 4270] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4270] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4269] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4269] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4269] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4270] <... write resumed>) = 8 [pid 4270] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4268] <... futex resumed>) = 0 [pid 4268] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4269] <... futex resumed>) = 0 [pid 4268] <... futex resumed>) = 1 [pid 4269] read(5, [pid 4268] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4269] <... read resumed>NULL, 0) = 0 [pid 4269] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4268] <... futex resumed>) = 0 [pid 4269] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4268] exit_group(0 [pid 4269] <... futex resumed>) = ? [pid 4268] <... exit_group resumed>) = ? [pid 4269] +++ exited with 0 +++ [pid 4270] <... futex resumed>) = ? [pid 4270] +++ exited with 0 +++ [pid 4268] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4268, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4271 ./strace-static-x86_64: Process 4271 attached [pid 4271] set_robust_list(0x555556e316e0, 24) = 0 [pid 4271] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4271] setpgid(0, 0) = 0 [pid 4271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4271] write(3, "1000", 4) = 4 [pid 4271] close(3) = 0 [pid 4271] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4271] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4271] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4271] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4272], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4272 [pid 4271] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4271] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4272 attached [pid 4272] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4272] memfd_create("syzkaller", 0) = 3 [pid 4272] ftruncate(3, 0) = 0 [pid 4272] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4272] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4272] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4272] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4272] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4271] <... futex resumed>) = 0 [pid 4271] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4271] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4272] <... futex resumed>) = 1 [pid 4272] pipe2([5, 6], 0) = 0 [pid 4272] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4271] <... futex resumed>) = 0 [pid 4271] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4271] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4272] <... futex resumed>) = 1 [pid 4272] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4272] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4271] <... futex resumed>) = 0 [pid 4271] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4271] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4272] <... futex resumed>) = 1 [pid 4272] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4271] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4271] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4271] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4271] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4271] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4273], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4273 [pid 4271] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4271] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4273 attached [pid 4273] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4273] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4272] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4272] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4272] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4273] <... write resumed>) = 8 [pid 4273] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4271] <... futex resumed>) = 0 [pid 4271] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4272] <... futex resumed>) = 0 [pid 4271] <... futex resumed>) = 1 [pid 4272] read(5, [pid 4271] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4272] <... read resumed>NULL, 0) = 0 [pid 4272] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4271] <... futex resumed>) = 0 [pid 4272] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4271] exit_group(0 [pid 4272] <... futex resumed>) = ? [pid 4271] <... exit_group resumed>) = ? [pid 4272] +++ exited with 0 +++ [pid 4273] <... futex resumed>) = ? [pid 4273] +++ exited with 0 +++ [pid 4271] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4271, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4274 ./strace-static-x86_64: Process 4274 attached [pid 4274] set_robust_list(0x555556e316e0, 24) = 0 [pid 4274] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4274] setpgid(0, 0) = 0 [pid 4274] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4274] write(3, "1000", 4) = 4 [pid 4274] close(3) = 0 [pid 4274] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4274] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4274] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4274] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4275], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4275 [pid 4274] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4274] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4275 attached [pid 4275] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4275] memfd_create("syzkaller", 0) = 3 [pid 4275] ftruncate(3, 0) = 0 [pid 4275] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4275] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4275] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4275] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4275] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4274] <... futex resumed>) = 0 [pid 4275] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4274] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4275] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4274] <... futex resumed>) = 0 [pid 4275] pipe2( [pid 4274] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4275] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4275] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4274] <... futex resumed>) = 0 [pid 4275] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4274] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4275] <... futex resumed>) = 0 [pid 4274] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4275] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4275] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4275] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4274] <... futex resumed>) = 0 [pid 4274] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4274] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4275] <... futex resumed>) = 0 [pid 4275] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4274] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4274] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4274] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4274] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4274] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4274] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4274] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4276], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4276 [pid 4274] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4274] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4276 attached [pid 4276] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4276] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4275] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4275] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4275] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4276] <... write resumed>) = 8 [pid 4276] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4274] <... futex resumed>) = 0 [pid 4274] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4275] <... futex resumed>) = 0 [pid 4274] <... futex resumed>) = 1 [pid 4275] read(5, [pid 4274] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4275] <... read resumed>NULL, 0) = 0 [pid 4275] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4274] <... futex resumed>) = 0 [pid 4275] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4274] exit_group(0 [pid 4275] <... futex resumed>) = ? [pid 4274] <... exit_group resumed>) = ? [pid 4275] +++ exited with 0 +++ [pid 4276] <... futex resumed>) = ? [pid 4276] +++ exited with 0 +++ [pid 4274] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4274, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4277 ./strace-static-x86_64: Process 4277 attached [pid 4277] set_robust_list(0x555556e316e0, 24) = 0 [pid 4277] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4277] setpgid(0, 0) = 0 [pid 4277] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4277] write(3, "1000", 4) = 4 [pid 4277] close(3) = 0 [pid 4277] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4277] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4277] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4277] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4278], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4278 [pid 4277] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4277] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4278 attached [pid 4278] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4278] memfd_create("syzkaller", 0) = 3 [pid 4278] ftruncate(3, 0) = 0 [pid 4278] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4278] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4278] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4278] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4278] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4277] <... futex resumed>) = 0 [pid 4277] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4277] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4278] <... futex resumed>) = 1 [pid 4278] pipe2([5, 6], 0) = 0 [pid 4278] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4277] <... futex resumed>) = 0 [pid 4277] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4277] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4278] <... futex resumed>) = 1 [pid 4278] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4278] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4277] <... futex resumed>) = 0 [pid 4277] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4277] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4278] <... futex resumed>) = 1 [pid 4278] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4277] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4277] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4277] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4277] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4277] clone(child_stack=0x7fbc2b5fd2f0, 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 4279 attached [pid 4279] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4277] <... clone resumed>, parent_tid=[4279], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4279 [pid 4279] <... set_robust_list resumed>) = 0 [pid 4277] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4279] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4277] <... futex resumed>) = 0 [pid 4277] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4279] <... write resumed>) = 8 [pid 4278] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4278] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4278] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4279] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4277] <... futex resumed>) = 0 [pid 4279] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4277] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4278] <... futex resumed>) = 0 [pid 4277] <... futex resumed>) = 1 [pid 4278] read(5, [pid 4277] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4278] <... read resumed>NULL, 0) = 0 [pid 4278] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4277] <... futex resumed>) = 0 [pid 4278] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4277] exit_group(0 [pid 4278] <... futex resumed>) = ? [pid 4277] <... exit_group resumed>) = ? [pid 4278] +++ exited with 0 +++ [pid 4279] <... futex resumed>) = ? [pid 4279] +++ exited with 0 +++ [pid 4277] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4277, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4280 ./strace-static-x86_64: Process 4280 attached [pid 4280] set_robust_list(0x555556e316e0, 24) = 0 [pid 4280] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4280] setpgid(0, 0) = 0 [pid 4280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4280] write(3, "1000", 4) = 4 [pid 4280] close(3) = 0 [pid 4280] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4280] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4280] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4280] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4281], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4281 [pid 4280] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 4281 attached ) = 0 [pid 4281] set_robust_list(0x7fbc2b61e9e0, 24 [pid 4280] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4281] <... set_robust_list resumed>) = 0 [pid 4281] memfd_create("syzkaller", 0) = 3 [pid 4281] ftruncate(3, 0) = 0 [pid 4281] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4281] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4281] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4281] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4281] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4280] <... futex resumed>) = 0 [pid 4280] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4280] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4281] pipe2([5, 6], 0) = 0 [pid 4281] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4280] <... futex resumed>) = 0 [pid 4280] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4280] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4281] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4281] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4280] <... futex resumed>) = 0 [pid 4281] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4280] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4280] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4280] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4280] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4280] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4280] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4280] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4280] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4282], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4282 [pid 4280] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4280] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4282 attached [pid 4282] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4282] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4281] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4282] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4281] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4282] <... futex resumed>) = 1 [pid 4281] <... futex resumed>) = 0 [pid 4280] <... futex resumed>) = 0 [pid 4281] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4280] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4281] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4280] <... futex resumed>) = 0 [pid 4281] read(5, [pid 4282] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4281] <... read resumed>NULL, 0) = 0 [pid 4280] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4281] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4280] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4281] <... futex resumed>) = 0 [pid 4281] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4280] exit_group(0 [pid 4281] <... futex resumed>) = ? [pid 4280] <... exit_group resumed>) = ? [pid 4282] <... futex resumed>) = ? [pid 4281] +++ exited with 0 +++ [pid 4282] +++ exited with 0 +++ [pid 4280] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4280, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4283 ./strace-static-x86_64: Process 4283 attached [pid 4283] set_robust_list(0x555556e316e0, 24) = 0 [pid 4283] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4283] setpgid(0, 0) = 0 [pid 4283] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4283] write(3, "1000", 4) = 4 [pid 4283] close(3) = 0 [pid 4283] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4283] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4283] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4283] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4284], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4284 [pid 4283] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4283] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4284 attached [pid 4284] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4284] memfd_create("syzkaller", 0) = 3 [pid 4284] ftruncate(3, 0) = 0 [pid 4284] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4284] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4284] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4284] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4284] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4283] <... futex resumed>) = 0 [pid 4284] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4283] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4284] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4283] <... futex resumed>) = 0 [pid 4283] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4284] pipe2([5, 6], 0) = 0 [pid 4284] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4283] <... futex resumed>) = 0 [pid 4284] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4283] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4284] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4283] <... futex resumed>) = 0 [pid 4284] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4283] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4284] <... write resumed>) = 64568 [pid 4284] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4284] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4283] <... futex resumed>) = 0 [pid 4283] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4283] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4284] <... futex resumed>) = 0 [pid 4284] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4283] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4283] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4283] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4283] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4283] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4283] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4285], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4285 [pid 4283] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4283] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4285 attached [pid 4285] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4285] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4284] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4284] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4284] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4285] <... write resumed>) = 8 [pid 4285] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4283] <... futex resumed>) = 0 [pid 4283] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4284] <... futex resumed>) = 0 [pid 4283] <... futex resumed>) = 1 [pid 4284] read(5, [pid 4283] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4284] <... read resumed>NULL, 0) = 0 [pid 4284] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4283] <... futex resumed>) = 0 [pid 4284] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4283] exit_group(0 [pid 4284] <... futex resumed>) = ? [pid 4283] <... exit_group resumed>) = ? [pid 4284] +++ exited with 0 +++ [pid 4285] <... futex resumed>) = ? [pid 4285] +++ exited with 0 +++ [pid 4283] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4283, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4286 ./strace-static-x86_64: Process 4286 attached [pid 4286] set_robust_list(0x555556e316e0, 24) = 0 [pid 4286] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4286] setpgid(0, 0) = 0 [pid 4286] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4286] write(3, "1000", 4) = 4 [pid 4286] close(3) = 0 [pid 4286] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4286] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4286] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4286] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4287], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4287 [pid 4286] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4286] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4287 attached [pid 4287] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4287] memfd_create("syzkaller", 0) = 3 [pid 4287] ftruncate(3, 0) = 0 [pid 4287] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4287] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4287] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4287] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4287] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4286] <... futex resumed>) = 0 [pid 4287] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4286] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4286] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4287] <... futex resumed>) = 0 [pid 4287] pipe2([5, 6], 0) = 0 [pid 4287] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4286] <... futex resumed>) = 0 [pid 4287] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4286] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4287] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4286] <... futex resumed>) = 0 [pid 4287] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4286] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4287] <... write resumed>) = 64568 [pid 4287] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4286] <... futex resumed>) = 0 [pid 4286] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4286] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4287] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4286] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4286] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4286] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4286] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4286] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4286] clone(child_stack=0x7fbc2b5fd2f0, 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 4288 attached , parent_tid=[4288], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4288 [pid 4288] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4286] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4288] <... set_robust_list resumed>) = 0 [pid 4286] <... futex resumed>) = 0 [pid 4288] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4286] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4288] <... write resumed>) = 8 [pid 4288] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4287] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4287] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4287] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4288] <... futex resumed>) = 1 [pid 4286] <... futex resumed>) = 0 [pid 4288] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4286] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4287] <... futex resumed>) = 0 [pid 4286] <... futex resumed>) = 1 [pid 4287] read(5, [pid 4286] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4287] <... read resumed>NULL, 0) = 0 [pid 4287] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4286] <... futex resumed>) = 0 [pid 4287] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4286] exit_group(0 [pid 4287] <... futex resumed>) = ? [pid 4286] <... exit_group resumed>) = ? [pid 4287] +++ exited with 0 +++ [pid 4288] <... futex resumed>) = ? [pid 4288] +++ exited with 0 +++ [pid 4286] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4286, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4289 attached , child_tidptr=0x555556e316d0) = 4289 [pid 4289] set_robust_list(0x555556e316e0, 24) = 0 [pid 4289] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4289] setpgid(0, 0) = 0 [pid 4289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4289] write(3, "1000", 4) = 4 [pid 4289] close(3) = 0 [pid 4289] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4289] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4289] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4289] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4290], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4290 [pid 4289] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4289] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4290 attached [pid 4290] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4290] memfd_create("syzkaller", 0) = 3 [pid 4290] ftruncate(3, 0) = 0 [pid 4290] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4290] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4290] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4290] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4290] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4289] <... futex resumed>) = 0 [pid 4289] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4289] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4290] <... futex resumed>) = 1 [pid 4290] pipe2([5, 6], 0) = 0 [pid 4290] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4289] <... futex resumed>) = 0 [pid 4289] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4289] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4290] <... futex resumed>) = 1 [pid 4290] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4290] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4289] <... futex resumed>) = 0 [pid 4289] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4289] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4290] <... futex resumed>) = 1 [pid 4290] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4289] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4289] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4289] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4289] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4289] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4289] clone(child_stack=0x7fbc2b5fd2f0, 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 4291 attached , parent_tid=[4291], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4291 [pid 4291] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4289] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4291] <... set_robust_list resumed>) = 0 [pid 4289] <... futex resumed>) = 0 [pid 4291] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4289] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4291] <... write resumed>) = 8 [pid 4291] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4290] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4289] <... futex resumed>) = 0 [pid 4291] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4290] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4289] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4290] <... futex resumed>) = 0 [pid 4289] <... futex resumed>) = 0 [pid 4290] read(5, [pid 4289] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4290] <... read resumed>NULL, 0) = 0 [pid 4290] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4289] <... futex resumed>) = 0 [pid 4290] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4289] exit_group(0 [pid 4290] <... futex resumed>) = ? [pid 4289] <... exit_group resumed>) = ? [pid 4291] <... futex resumed>) = ? [pid 4290] +++ exited with 0 +++ [pid 4291] +++ exited with 0 +++ [pid 4289] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4289, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4292 ./strace-static-x86_64: Process 4292 attached [pid 4292] set_robust_list(0x555556e316e0, 24) = 0 [pid 4292] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4292] setpgid(0, 0) = 0 [pid 4292] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4292] write(3, "1000", 4) = 4 [pid 4292] close(3) = 0 [pid 4292] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4292] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4292] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4292] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4293], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4293 [pid 4292] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4292] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4293 attached [pid 4293] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4293] memfd_create("syzkaller", 0) = 3 [pid 4293] ftruncate(3, 0) = 0 [pid 4293] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4293] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4293] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4293] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4293] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4292] <... futex resumed>) = 0 [pid 4292] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4292] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4293] <... futex resumed>) = 1 [pid 4293] pipe2([5, 6], 0) = 0 [pid 4293] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4292] <... futex resumed>) = 0 [pid 4292] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4292] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4293] <... futex resumed>) = 1 [pid 4293] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4293] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4292] <... futex resumed>) = 0 [pid 4292] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4292] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4293] <... futex resumed>) = 1 [pid 4293] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4292] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4292] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4292] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4292] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4292] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4292] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4294], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4294 [pid 4292] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4292] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4294 attached [pid 4294] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4294] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4293] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4293] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4293] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4294] <... write resumed>) = 8 [pid 4294] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4292] <... futex resumed>) = 0 [pid 4292] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4293] <... futex resumed>) = 0 [pid 4292] <... futex resumed>) = 1 [pid 4293] read(5, [pid 4292] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4293] <... read resumed>NULL, 0) = 0 [pid 4293] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4292] <... futex resumed>) = 0 [pid 4293] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4292] exit_group(0 [pid 4293] <... futex resumed>) = ? [pid 4292] <... exit_group resumed>) = ? [pid 4293] +++ exited with 0 +++ [pid 4294] <... futex resumed>) = ? [pid 4294] +++ exited with 0 +++ [pid 4292] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4292, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4295 ./strace-static-x86_64: Process 4295 attached [pid 4295] set_robust_list(0x555556e316e0, 24) = 0 [pid 4295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4295] setpgid(0, 0) = 0 [pid 4295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4295] write(3, "1000", 4) = 4 [pid 4295] close(3) = 0 [pid 4295] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4295] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4295] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4295] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4296], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4296 [pid 4295] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4295] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4296 attached [pid 4296] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4296] memfd_create("syzkaller", 0) = 3 [pid 4296] ftruncate(3, 0) = 0 [pid 4296] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4296] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4296] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4296] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4296] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4295] <... futex resumed>) = 0 [pid 4295] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4295] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4296] <... futex resumed>) = 1 [pid 4296] pipe2([5, 6], 0) = 0 [pid 4296] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4295] <... futex resumed>) = 0 [pid 4295] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4295] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4296] <... futex resumed>) = 1 [pid 4296] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4296] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4295] <... futex resumed>) = 0 [pid 4295] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4295] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4296] <... futex resumed>) = 1 [pid 4296] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4295] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4295] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4295] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4295] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4295] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4295] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4295] clone(child_stack=0x7fbc2b5fd2f0, 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 4297 attached [pid 4297] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4295] <... clone resumed>, parent_tid=[4297], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4297 [pid 4297] <... set_robust_list resumed>) = 0 [pid 4295] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4297] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4295] <... futex resumed>) = 0 [pid 4295] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4297] <... write resumed>) = 8 [pid 4297] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4296] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4295] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4297] <... futex resumed>) = 0 [pid 4296] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4295] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4296] <... futex resumed>) = 0 [pid 4297] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4295] <... futex resumed>) = 0 [pid 4296] read(5, [pid 4295] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4296] <... read resumed>NULL, 0) = 0 [pid 4296] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4295] <... futex resumed>) = 0 [pid 4296] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4295] exit_group(0 [pid 4297] <... futex resumed>) = ? [pid 4296] <... futex resumed>) = ? [pid 4295] <... exit_group resumed>) = ? [pid 4297] +++ exited with 0 +++ [pid 4296] +++ exited with 0 +++ [pid 4295] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4295, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4298 ./strace-static-x86_64: Process 4298 attached [pid 4298] set_robust_list(0x555556e316e0, 24) = 0 [pid 4298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4298] setpgid(0, 0) = 0 [pid 4298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4298] write(3, "1000", 4) = 4 [pid 4298] close(3) = 0 [pid 4298] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4298] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4298] clone(child_stack=0x7fbc2b61e2f0, 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 4299 attached , parent_tid=[4299], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4299 [pid 4298] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4298] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4299] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4299] memfd_create("syzkaller", 0) = 3 [pid 4299] ftruncate(3, 0) = 0 [pid 4299] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4299] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4299] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4299] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4299] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4298] <... futex resumed>) = 0 [pid 4298] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4298] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4299] <... futex resumed>) = 1 [pid 4299] pipe2([5, 6], 0) = 0 [pid 4299] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4298] <... futex resumed>) = 0 [pid 4298] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4298] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4299] <... futex resumed>) = 1 [pid 4299] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4299] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4298] <... futex resumed>) = 0 [pid 4299] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4298] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4298] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4298] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4298] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4298] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4298] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4300], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4300 [pid 4298] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4298] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4300 attached [pid 4300] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4300] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4300] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4298] <... futex resumed>) = 0 [pid 4298] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4298] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4300] <... futex resumed>) = 1 [pid 4300] read(5, NULL, 0) = 0 [pid 4300] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4298] <... futex resumed>) = 0 [pid 4300] <... futex resumed>) = 1 [pid 4300] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4299] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4299] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4299] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4298] exit_group(0) = ? [pid 4300] <... futex resumed>) = ? [pid 4300] +++ exited with 0 +++ [pid 4299] <... futex resumed>) = ? [pid 4299] +++ exited with 0 +++ [pid 4298] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4298, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4301 ./strace-static-x86_64: Process 4301 attached [pid 4301] set_robust_list(0x555556e316e0, 24) = 0 [pid 4301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4301] setpgid(0, 0) = 0 [pid 4301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4301] write(3, "1000", 4) = 4 [pid 4301] close(3) = 0 [pid 4301] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4301] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4301] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4302], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4302 [pid 4301] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4301] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4302 attached [pid 4302] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4302] memfd_create("syzkaller", 0) = 3 [pid 4302] ftruncate(3, 0) = 0 [pid 4302] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4302] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4302] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4302] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4302] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4301] <... futex resumed>) = 0 [pid 4301] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4301] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4302] <... futex resumed>) = 1 [pid 4302] pipe2([5, 6], 0) = 0 [pid 4302] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4301] <... futex resumed>) = 0 [pid 4301] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4301] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4302] <... futex resumed>) = 1 [pid 4302] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4302] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4301] <... futex resumed>) = 0 [pid 4301] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4301] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4302] <... futex resumed>) = 1 [pid 4302] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4301] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4301] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4301] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4301] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4303], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4303 [pid 4301] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4301] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4303 attached [pid 4303] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4303] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4302] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4302] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4302] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4303] <... write resumed>) = 8 [pid 4303] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4301] <... futex resumed>) = 0 [pid 4301] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4302] <... futex resumed>) = 0 [pid 4301] <... futex resumed>) = 1 [pid 4302] read(5, [pid 4301] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4302] <... read resumed>NULL, 0) = 0 [pid 4302] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4301] <... futex resumed>) = 0 [pid 4302] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4301] exit_group(0 [pid 4302] <... futex resumed>) = ? [pid 4301] <... exit_group resumed>) = ? [pid 4302] +++ exited with 0 +++ [pid 4303] <... futex resumed>) = ? [pid 4303] +++ exited with 0 +++ [pid 4301] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4301, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4304 ./strace-static-x86_64: Process 4304 attached [pid 4304] set_robust_list(0x555556e316e0, 24) = 0 [pid 4304] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4304] setpgid(0, 0) = 0 [pid 4304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4304] write(3, "1000", 4) = 4 [pid 4304] close(3) = 0 [pid 4304] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4304] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4304] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4304] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4305], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4305 [pid 4304] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 4305 attached [pid 4304] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4305] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4305] memfd_create("syzkaller", 0) = 3 [pid 4305] ftruncate(3, 0) = 0 [pid 4305] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4305] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4305] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4305] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4305] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4305] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4304] <... futex resumed>) = 0 [pid 4304] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4304] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4305] <... futex resumed>) = 0 [pid 4305] pipe2([5, 6], 0) = 0 [pid 4305] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4305] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4304] <... futex resumed>) = 0 [pid 4304] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4304] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4305] <... futex resumed>) = 0 [pid 4305] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4305] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4305] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4304] <... futex resumed>) = 0 [pid 4304] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4304] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4305] <... futex resumed>) = 0 [pid 4305] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4304] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4304] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4304] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4304] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4304] clone(child_stack=0x7fbc2b5fd2f0, 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 4306 attached [pid 4306] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4304] <... clone resumed>, parent_tid=[4306], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4306 [pid 4306] <... set_robust_list resumed>) = 0 [pid 4304] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4306] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4304] <... futex resumed>) = 0 [pid 4304] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4306] <... write resumed>) = 8 [pid 4305] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4306] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4305] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4306] <... futex resumed>) = 1 [pid 4305] <... futex resumed>) = 0 [pid 4304] <... futex resumed>) = 0 [pid 4306] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4305] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4304] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4305] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4304] <... futex resumed>) = 0 [pid 4305] read(5, [pid 4304] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4305] <... read resumed>NULL, 0) = 0 [pid 4305] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4304] <... futex resumed>) = 0 [pid 4305] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4304] exit_group(0 [pid 4306] <... futex resumed>) = ? [pid 4305] <... futex resumed>) = ? [pid 4304] <... exit_group resumed>) = ? [pid 4306] +++ exited with 0 +++ [pid 4305] +++ exited with 0 +++ [pid 4304] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4304, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4307 ./strace-static-x86_64: Process 4307 attached [pid 4307] set_robust_list(0x555556e316e0, 24) = 0 [pid 4307] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4307] setpgid(0, 0) = 0 [pid 4307] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4307] write(3, "1000", 4) = 4 [pid 4307] close(3) = 0 [pid 4307] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4307] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4307] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4307] clone(child_stack=0x7fbc2b61e2f0, 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 4308 attached [pid 4308] set_robust_list(0x7fbc2b61e9e0, 24 [pid 4307] <... clone resumed>, parent_tid=[4308], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4308 [pid 4308] <... set_robust_list resumed>) = 0 [pid 4307] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4308] memfd_create("syzkaller", 0 [pid 4307] <... futex resumed>) = 0 [pid 4308] <... memfd_create resumed>) = 3 [pid 4307] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4308] ftruncate(3, 0) = 0 [pid 4308] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4308] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4308] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4308] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4308] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4308] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4307] <... futex resumed>) = 0 [pid 4307] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4307] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4308] <... futex resumed>) = 0 [pid 4308] pipe2([5, 6], 0) = 0 [pid 4308] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4307] <... futex resumed>) = 0 [pid 4307] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4307] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4308] <... futex resumed>) = 1 [pid 4308] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4308] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4307] <... futex resumed>) = 0 [pid 4307] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4307] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4308] <... futex resumed>) = 1 [pid 4308] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4307] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4307] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4307] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4307] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4307] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4309], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4309 [pid 4307] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4307] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4309 attached [pid 4309] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4309] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4308] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4309] <... write resumed>) = 8 [pid 4308] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4308] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4309] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4307] <... futex resumed>) = 0 [pid 4307] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4308] <... futex resumed>) = 0 [pid 4307] <... futex resumed>) = 1 [pid 4308] read(5, [pid 4307] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4308] <... read resumed>NULL, 0) = 0 [pid 4308] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4307] <... futex resumed>) = 0 [pid 4308] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4307] exit_group(0 [pid 4308] <... futex resumed>) = ? [pid 4307] <... exit_group resumed>) = ? [pid 4308] +++ exited with 0 +++ [pid 4309] <... futex resumed>) = ? [pid 4309] +++ exited with 0 +++ [pid 4307] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4307, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4310 ./strace-static-x86_64: Process 4310 attached [pid 4310] set_robust_list(0x555556e316e0, 24) = 0 [pid 4310] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4310] setpgid(0, 0) = 0 [pid 4310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4310] write(3, "1000", 4) = 4 [pid 4310] close(3) = 0 [pid 4310] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4310] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4310] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4310] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4311], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4311 [pid 4310] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4310] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4311 attached [pid 4311] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4311] memfd_create("syzkaller", 0) = 3 [pid 4311] ftruncate(3, 0) = 0 [pid 4311] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4311] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4311] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4311] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4311] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4311] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4310] <... futex resumed>) = 0 [pid 4310] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4310] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4311] <... futex resumed>) = 0 [pid 4311] pipe2([5, 6], 0) = 0 [pid 4311] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4310] <... futex resumed>) = 0 [pid 4310] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4310] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4311] <... futex resumed>) = 1 [pid 4311] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4311] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4310] <... futex resumed>) = 0 [pid 4310] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4310] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4311] <... futex resumed>) = 1 [pid 4311] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4310] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4310] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4310] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4310] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4310] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4310] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4312], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4312 [pid 4310] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4310] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4312 attached [pid 4312] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4312] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4311] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4311] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4311] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4312] <... write resumed>) = 8 [pid 4312] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4310] <... futex resumed>) = 0 [pid 4310] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4311] <... futex resumed>) = 0 [pid 4310] <... futex resumed>) = 1 [pid 4311] read(5, [pid 4310] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4311] <... read resumed>NULL, 0) = 0 [pid 4311] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4310] <... futex resumed>) = 0 [pid 4311] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4310] exit_group(0 [pid 4311] <... futex resumed>) = ? [pid 4310] <... exit_group resumed>) = ? [pid 4311] +++ exited with 0 +++ [pid 4312] <... futex resumed>) = ? [pid 4312] +++ exited with 0 +++ [pid 4310] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4310, si_uid=0, si_status=0, si_utime=2, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4313 ./strace-static-x86_64: Process 4313 attached [pid 4313] set_robust_list(0x555556e316e0, 24) = 0 [pid 4313] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4313] setpgid(0, 0) = 0 [pid 4313] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4313] write(3, "1000", 4) = 4 [pid 4313] close(3) = 0 [pid 4313] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4313] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4313] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4313] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4314], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4314 [pid 4313] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4313] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4314 attached [pid 4314] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4314] memfd_create("syzkaller", 0) = 3 [pid 4314] ftruncate(3, 0) = 0 [pid 4314] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4314] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4314] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4314] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4314] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4313] <... futex resumed>) = 0 [pid 4313] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4313] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4314] pipe2([5, 6], 0) = 0 [pid 4314] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4314] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4313] <... futex resumed>) = 0 [pid 4313] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4313] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4314] <... futex resumed>) = 0 [pid 4314] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4314] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4313] <... futex resumed>) = 0 [pid 4313] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4313] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4314] <... futex resumed>) = 1 [pid 4314] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4313] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4313] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4313] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4313] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4313] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4313] clone(child_stack=0x7fbc2b5fd2f0, 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 4315 attached , parent_tid=[4315], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4315 [pid 4315] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4313] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4315] <... set_robust_list resumed>) = 0 [pid 4313] <... futex resumed>) = 0 [pid 4315] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4313] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4315] <... write resumed>) = 8 [pid 4314] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4315] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4314] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4315] <... futex resumed>) = 1 [pid 4314] <... futex resumed>) = 0 [pid 4313] <... futex resumed>) = 0 [pid 4315] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4314] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4313] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4314] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4313] <... futex resumed>) = 0 [pid 4314] read(5, [pid 4313] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4314] <... read resumed>NULL, 0) = 0 [pid 4314] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4313] <... futex resumed>) = 0 [pid 4314] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4313] exit_group(0 [pid 4315] <... futex resumed>) = ? [pid 4314] <... futex resumed>) = ? [pid 4313] <... exit_group resumed>) = ? [pid 4315] +++ exited with 0 +++ [pid 4314] +++ exited with 0 +++ [pid 4313] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4313, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4316 ./strace-static-x86_64: Process 4316 attached [pid 4316] set_robust_list(0x555556e316e0, 24) = 0 [pid 4316] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4316] setpgid(0, 0) = 0 [pid 4316] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4316] write(3, "1000", 4) = 4 [pid 4316] close(3) = 0 [pid 4316] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4316] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4316] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4316] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4317], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4317 [pid 4316] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4316] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4317 attached [pid 4317] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4317] memfd_create("syzkaller", 0) = 3 [pid 4317] ftruncate(3, 0) = 0 [pid 4317] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4317] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4317] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4317] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4317] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4316] <... futex resumed>) = 0 [pid 4316] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4316] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4317] <... futex resumed>) = 1 [pid 4317] pipe2([5, 6], 0) = 0 [pid 4317] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4316] <... futex resumed>) = 0 [pid 4316] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4316] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4317] <... futex resumed>) = 1 [pid 4317] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4317] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4316] <... futex resumed>) = 0 [pid 4316] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4316] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4317] <... futex resumed>) = 1 [pid 4317] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4316] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4316] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4316] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4316] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4316] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4316] clone(child_stack=0x7fbc2b5fd2f0, 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 4318 attached , parent_tid=[4318], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4318 [pid 4318] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4316] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4318] <... set_robust_list resumed>) = 0 [pid 4316] <... futex resumed>) = 0 [pid 4318] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4316] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4318] <... write resumed>) = 8 [pid 4317] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4318] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4317] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4318] <... futex resumed>) = 1 [pid 4317] <... futex resumed>) = 0 [pid 4316] <... futex resumed>) = 0 [pid 4318] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4317] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4316] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4317] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4316] <... futex resumed>) = 0 [pid 4317] read(5, [pid 4316] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4317] <... read resumed>NULL, 0) = 0 [pid 4317] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4317] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4316] <... futex resumed>) = 0 [pid 4316] exit_group(0) = ? [pid 4317] <... futex resumed>) = ? [pid 4318] <... futex resumed>) = ? [pid 4318] +++ exited with 0 +++ [pid 4317] +++ exited with 0 +++ [pid 4316] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4316, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4319 ./strace-static-x86_64: Process 4319 attached [pid 4319] set_robust_list(0x555556e316e0, 24) = 0 [pid 4319] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4319] setpgid(0, 0) = 0 [pid 4319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4319] write(3, "1000", 4) = 4 [pid 4319] close(3) = 0 [pid 4319] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4319] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4319] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4319] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4320], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4320 [pid 4319] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4319] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4320 attached [pid 4320] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4320] memfd_create("syzkaller", 0) = 3 [pid 4320] ftruncate(3, 0) = 0 [pid 4320] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4320] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4320] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4320] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4320] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4319] <... futex resumed>) = 0 [pid 4319] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4319] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4320] <... futex resumed>) = 1 [pid 4320] pipe2([5, 6], 0) = 0 [pid 4320] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4319] <... futex resumed>) = 0 [pid 4319] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4319] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4320] <... futex resumed>) = 1 [pid 4320] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4320] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4319] <... futex resumed>) = 0 [pid 4319] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4319] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4320] <... futex resumed>) = 1 [pid 4320] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4319] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4319] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4319] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4319] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4319] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4321], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4321 [pid 4319] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4319] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4321 attached [pid 4321] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4321] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4321] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4319] <... futex resumed>) = 0 [pid 4319] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4319] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4321] <... futex resumed>) = 1 [pid 4321] read(5, NULL, 0) = 0 [pid 4321] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4319] <... futex resumed>) = 0 [pid 4321] <... futex resumed>) = 1 [pid 4321] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4320] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4320] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4320] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4319] exit_group(0 [pid 4321] <... futex resumed>) = ? [pid 4320] <... futex resumed>) = ? [pid 4319] <... exit_group resumed>) = ? [pid 4321] +++ exited with 0 +++ [pid 4320] +++ exited with 0 +++ [pid 4319] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4319, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4322 ./strace-static-x86_64: Process 4322 attached [pid 4322] set_robust_list(0x555556e316e0, 24) = 0 [pid 4322] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4322] setpgid(0, 0) = 0 [pid 4322] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4322] write(3, "1000", 4) = 4 [pid 4322] close(3) = 0 [pid 4322] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4322] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4322] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4322] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4323], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4323 [pid 4322] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4322] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4323 attached [pid 4323] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4323] memfd_create("syzkaller", 0) = 3 [pid 4323] ftruncate(3, 0) = 0 [pid 4323] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4323] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4323] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4323] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4323] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4322] <... futex resumed>) = 0 [pid 4322] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4322] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4323] <... futex resumed>) = 1 [pid 4323] pipe2([5, 6], 0) = 0 [pid 4323] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4322] <... futex resumed>) = 0 [pid 4322] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4322] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4323] <... futex resumed>) = 1 [pid 4323] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4323] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4322] <... futex resumed>) = 0 [pid 4322] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4322] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4323] <... futex resumed>) = 1 [pid 4323] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4322] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4322] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4322] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4322] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4322] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4322] clone(child_stack=0x7fbc2b5fd2f0, 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 4324 attached , parent_tid=[4324], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4324 [pid 4322] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4322] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4324] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4324] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4324] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4323] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4324] <... futex resumed>) = 1 [pid 4323] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4322] <... futex resumed>) = 0 [pid 4324] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4323] <... futex resumed>) = 0 [pid 4323] read(5, [pid 4322] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4323] <... read resumed>NULL, 0) = 0 [pid 4323] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4322] <... futex resumed>) = 0 [pid 4323] <... futex resumed>) = 0 [pid 4322] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4323] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4322] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4322] exit_group(0 [pid 4324] <... futex resumed>) = ? [pid 4323] <... futex resumed>) = ? [pid 4322] <... exit_group resumed>) = ? [pid 4324] +++ exited with 0 +++ [pid 4323] +++ exited with 0 +++ [pid 4322] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4322, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4325 ./strace-static-x86_64: Process 4325 attached [pid 4325] set_robust_list(0x555556e316e0, 24) = 0 [pid 4325] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4325] setpgid(0, 0) = 0 [pid 4325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4325] write(3, "1000", 4) = 4 [pid 4325] close(3) = 0 [pid 4325] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4325] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4325] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4325] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4326], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4326 [pid 4325] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4325] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4326 attached [pid 4326] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4326] memfd_create("syzkaller", 0) = 3 [pid 4326] ftruncate(3, 0) = 0 [pid 4326] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4326] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4326] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4326] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4326] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4325] <... futex resumed>) = 0 [pid 4325] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4325] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4326] <... futex resumed>) = 1 [pid 4326] pipe2([5, 6], 0) = 0 [pid 4326] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4325] <... futex resumed>) = 0 [pid 4325] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4325] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4326] <... futex resumed>) = 1 [pid 4326] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4326] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4325] <... futex resumed>) = 0 [pid 4325] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4325] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4326] <... futex resumed>) = 1 [pid 4326] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4325] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4325] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4325] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4325] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4325] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4327], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4327 [pid 4325] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4325] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4327 attached [pid 4327] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4327] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4326] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4326] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4326] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4327] <... write resumed>) = 8 [pid 4327] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4325] <... futex resumed>) = 0 [pid 4325] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4326] <... futex resumed>) = 0 [pid 4325] <... futex resumed>) = 1 [pid 4326] read(5, [pid 4325] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4326] <... read resumed>NULL, 0) = 0 [pid 4326] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4325] <... futex resumed>) = 0 [pid 4326] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4325] exit_group(0 [pid 4326] <... futex resumed>) = ? [pid 4325] <... exit_group resumed>) = ? [pid 4326] +++ exited with 0 +++ [pid 4327] <... futex resumed>) = ? [pid 4327] +++ exited with 0 +++ [pid 4325] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4325, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4328 ./strace-static-x86_64: Process 4328 attached [pid 4328] set_robust_list(0x555556e316e0, 24) = 0 [pid 4328] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4328] setpgid(0, 0) = 0 [pid 4328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4328] write(3, "1000", 4) = 4 [pid 4328] close(3) = 0 [pid 4328] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4328] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4328] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4328] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4329], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4329 [pid 4328] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4328] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4329 attached [pid 4329] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4329] memfd_create("syzkaller", 0) = 3 [pid 4329] ftruncate(3, 0) = 0 [pid 4329] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4329] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4329] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4329] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4329] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4328] <... futex resumed>) = 0 [pid 4328] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4328] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4329] <... futex resumed>) = 1 [pid 4329] pipe2([5, 6], 0) = 0 [pid 4329] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4328] <... futex resumed>) = 0 [pid 4328] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4328] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4329] <... futex resumed>) = 1 [pid 4329] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4329] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4328] <... futex resumed>) = 0 [pid 4328] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4328] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4329] <... futex resumed>) = 1 [pid 4329] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4328] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4328] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4328] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4328] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4328] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4328] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4328] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4330], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4330 [pid 4328] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4328] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4330 attached [pid 4330] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4330] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4329] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4329] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4329] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4330] <... write resumed>) = 8 [pid 4330] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4328] <... futex resumed>) = 0 [pid 4328] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4329] <... futex resumed>) = 0 [pid 4328] <... futex resumed>) = 1 [pid 4329] read(5, [pid 4328] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4329] <... read resumed>NULL, 0) = 0 [pid 4329] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4328] <... futex resumed>) = 0 [pid 4329] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4328] exit_group(0 [pid 4329] <... futex resumed>) = ? [pid 4328] <... exit_group resumed>) = ? [pid 4329] +++ exited with 0 +++ [pid 4330] <... futex resumed>) = ? [pid 4330] +++ exited with 0 +++ [pid 4328] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4328, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4331 attached , child_tidptr=0x555556e316d0) = 4331 [pid 4331] set_robust_list(0x555556e316e0, 24) = 0 [pid 4331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4331] setpgid(0, 0) = 0 [pid 4331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4331] write(3, "1000", 4) = 4 [pid 4331] close(3) = 0 [pid 4331] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4331] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4331] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4331] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4332], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4332 [pid 4331] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4331] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4332 attached [pid 4332] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4332] memfd_create("syzkaller", 0) = 3 [pid 4332] ftruncate(3, 0) = 0 [pid 4332] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4332] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4332] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4332] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4332] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4331] <... futex resumed>) = 0 [pid 4331] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4331] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4332] <... futex resumed>) = 1 [pid 4332] pipe2([5, 6], 0) = 0 [pid 4332] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4331] <... futex resumed>) = 0 [pid 4331] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4331] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4332] <... futex resumed>) = 1 [pid 4332] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4332] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4331] <... futex resumed>) = 0 [pid 4331] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4331] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4332] <... futex resumed>) = 1 [pid 4332] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4331] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4331] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4331] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4331] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4331] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4333], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4333 ./strace-static-x86_64: Process 4333 attached [pid 4333] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4331] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4333] <... set_robust_list resumed>) = 0 [pid 4331] <... futex resumed>) = 0 [pid 4333] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4331] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4333] <... write resumed>) = 8 [pid 4333] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4332] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4333] <... futex resumed>) = 1 [pid 4331] <... futex resumed>) = 0 [pid 4333] read(5, [pid 4331] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4333] <... read resumed>NULL, 0) = 0 [pid 4331] <... futex resumed>) = 0 [pid 4333] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4331] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4333] <... futex resumed>) = 0 [pid 4331] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4333] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4332] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4332] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4331] exit_group(0) = ? [pid 4333] <... futex resumed>) = ? [pid 4332] <... futex resumed>) = ? [pid 4333] +++ exited with 0 +++ [pid 4332] +++ exited with 0 +++ [pid 4331] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4331, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4334 ./strace-static-x86_64: Process 4334 attached [pid 4334] set_robust_list(0x555556e316e0, 24) = 0 [pid 4334] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4334] setpgid(0, 0) = 0 [pid 4334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4334] write(3, "1000", 4) = 4 [pid 4334] close(3) = 0 [pid 4334] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4334] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4334] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4334] clone(child_stack=0x7fbc2b61e2f0, 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 4335 attached , parent_tid=[4335], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4335 [pid 4334] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4334] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4335] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4335] memfd_create("syzkaller", 0) = 3 [pid 4335] ftruncate(3, 0) = 0 [pid 4335] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4335] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4335] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4335] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4335] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4335] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4334] <... futex resumed>) = 0 [pid 4334] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4334] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4335] <... futex resumed>) = 0 [pid 4335] pipe2([5, 6], 0) = 0 [pid 4335] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4334] <... futex resumed>) = 0 [pid 4334] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4334] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4335] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4335] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4334] <... futex resumed>) = 0 [pid 4334] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4334] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4335] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4334] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4334] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4334] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4334] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4334] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4334] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4334] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4336], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4336 [pid 4334] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4334] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4336 attached [pid 4336] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4336] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4335] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4335] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4335] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4336] <... write resumed>) = 8 [pid 4336] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4334] <... futex resumed>) = 0 [pid 4334] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4335] <... futex resumed>) = 0 [pid 4334] <... futex resumed>) = 1 [pid 4335] read(5, [pid 4334] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4335] <... read resumed>NULL, 0) = 0 [pid 4335] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4334] <... futex resumed>) = 0 [pid 4335] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4334] exit_group(0 [pid 4335] <... futex resumed>) = ? [pid 4334] <... exit_group resumed>) = ? [pid 4335] +++ exited with 0 +++ [pid 4336] <... futex resumed>) = ? [pid 4336] +++ exited with 0 +++ [pid 4334] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4334, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4337 ./strace-static-x86_64: Process 4337 attached [pid 4337] set_robust_list(0x555556e316e0, 24) = 0 [pid 4337] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4337] setpgid(0, 0) = 0 [pid 4337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4337] write(3, "1000", 4) = 4 [pid 4337] close(3) = 0 [pid 4337] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4337] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4337] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4337] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4338], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4338 [pid 4337] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4337] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4338 attached [pid 4338] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4338] memfd_create("syzkaller", 0) = 3 [pid 4338] ftruncate(3, 0) = 0 [pid 4338] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4338] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4338] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4338] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4338] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4337] <... futex resumed>) = 0 [pid 4337] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4338] <... futex resumed>) = 1 [pid 4337] <... futex resumed>) = 0 [pid 4337] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4338] pipe2([5, 6], 0) = 0 [pid 4338] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4337] <... futex resumed>) = 0 [pid 4337] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4337] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4338] <... futex resumed>) = 1 [pid 4338] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4338] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4337] <... futex resumed>) = 0 [pid 4337] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4338] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4337] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4337] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4337] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4337] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4337] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4337] clone(child_stack=0x7fbc2b5fd2f0, 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 4339 attached [pid 4339] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4337] <... clone resumed>, parent_tid=[4339], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4339 [pid 4339] <... set_robust_list resumed>) = 0 [pid 4337] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4339] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4337] <... futex resumed>) = 0 [pid 4339] <... write resumed>) = 8 [pid 4338] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4337] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4339] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4338] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4337] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4339] <... futex resumed>) = 0 [pid 4338] <... futex resumed>) = 0 [pid 4337] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4339] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4338] read(5, [pid 4337] <... futex resumed>) = 0 [pid 4338] <... read resumed>NULL, 0) = 0 [pid 4337] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4338] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4337] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4338] <... futex resumed>) = 0 [pid 4337] exit_group(0 [pid 4339] <... futex resumed>) = ? [pid 4337] <... exit_group resumed>) = ? [pid 4339] +++ exited with 0 +++ [pid 4338] +++ exited with 0 +++ [pid 4337] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4337, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4340 ./strace-static-x86_64: Process 4340 attached [pid 4340] set_robust_list(0x555556e316e0, 24) = 0 [pid 4340] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4340] setpgid(0, 0) = 0 [pid 4340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4340] write(3, "1000", 4) = 4 [pid 4340] close(3) = 0 [pid 4340] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4340] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4340] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4340] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4341], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4341 [pid 4340] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4340] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4341 attached [pid 4341] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4341] memfd_create("syzkaller", 0) = 3 [pid 4341] ftruncate(3, 0) = 0 [pid 4341] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4341] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4341] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4341] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4341] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4340] <... futex resumed>) = 0 [pid 4340] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4340] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4341] <... futex resumed>) = 1 [pid 4341] pipe2([5, 6], 0) = 0 [pid 4341] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4340] <... futex resumed>) = 0 [pid 4340] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4340] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4341] <... futex resumed>) = 1 [pid 4341] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4341] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4340] <... futex resumed>) = 0 [pid 4340] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4340] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4341] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4340] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4340] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4340] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4340] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4340] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4340] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4342], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4342 [pid 4340] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4340] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4342 attached [pid 4342] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4342] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4341] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4341] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4341] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4342] <... write resumed>) = 8 [pid 4342] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4340] <... futex resumed>) = 0 [pid 4340] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4341] <... futex resumed>) = 0 [pid 4340] <... futex resumed>) = 1 [pid 4341] read(5, [pid 4340] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4341] <... read resumed>NULL, 0) = 0 [pid 4341] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4340] <... futex resumed>) = 0 [pid 4341] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4340] exit_group(0 [pid 4341] <... futex resumed>) = ? [pid 4340] <... exit_group resumed>) = ? [pid 4341] +++ exited with 0 +++ [pid 4342] <... futex resumed>) = ? [pid 4342] +++ exited with 0 +++ [pid 4340] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4340, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4343 attached , child_tidptr=0x555556e316d0) = 4343 [pid 4343] set_robust_list(0x555556e316e0, 24) = 0 [pid 4343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4343] setpgid(0, 0) = 0 [pid 4343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4343] write(3, "1000", 4) = 4 [pid 4343] close(3) = 0 [pid 4343] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4343] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4343] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4343] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4344], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4344 [pid 4343] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4343] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4344 attached [pid 4344] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4344] memfd_create("syzkaller", 0) = 3 [pid 4344] ftruncate(3, 0) = 0 [pid 4344] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4344] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4344] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4344] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4344] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4343] <... futex resumed>) = 0 [pid 4343] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4343] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4344] <... futex resumed>) = 1 [pid 4344] pipe2([5, 6], 0) = 0 [pid 4344] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4343] <... futex resumed>) = 0 [pid 4343] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4343] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4344] <... futex resumed>) = 1 [pid 4344] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4344] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4343] <... futex resumed>) = 0 [pid 4343] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4343] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4344] <... futex resumed>) = 1 [pid 4344] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4343] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4343] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4343] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4343] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4343] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4343] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4345], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4345 [pid 4343] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4343] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4345 attached [pid 4345] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4345] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4344] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4344] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4344] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4345] <... write resumed>) = 8 [pid 4345] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4343] <... futex resumed>) = 0 [pid 4343] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4344] <... futex resumed>) = 0 [pid 4343] <... futex resumed>) = 1 [pid 4344] read(5, [pid 4343] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4344] <... read resumed>NULL, 0) = 0 [pid 4344] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4343] <... futex resumed>) = 0 [pid 4344] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4343] exit_group(0 [pid 4344] <... futex resumed>) = ? [pid 4343] <... exit_group resumed>) = ? [pid 4344] +++ exited with 0 +++ [pid 4345] <... futex resumed>) = ? [pid 4345] +++ exited with 0 +++ [pid 4343] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4343, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4346 attached , child_tidptr=0x555556e316d0) = 4346 [pid 4346] set_robust_list(0x555556e316e0, 24) = 0 [pid 4346] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4346] setpgid(0, 0) = 0 [pid 4346] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4346] write(3, "1000", 4) = 4 [pid 4346] close(3) = 0 [pid 4346] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4346] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4346] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4346] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4347], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4347 [pid 4346] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4346] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4347 attached [pid 4347] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4347] memfd_create("syzkaller", 0) = 3 [pid 4347] ftruncate(3, 0) = 0 [pid 4347] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4347] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4347] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4347] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4347] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4346] <... futex resumed>) = 0 [pid 4346] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4346] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4347] <... futex resumed>) = 1 [pid 4347] pipe2([5, 6], 0) = 0 [pid 4347] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4346] <... futex resumed>) = 0 [pid 4346] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4346] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4347] <... futex resumed>) = 1 [pid 4347] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4347] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4346] <... futex resumed>) = 0 [pid 4346] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4346] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4347] <... futex resumed>) = 1 [pid 4347] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4346] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4346] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4346] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4346] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4346] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4346] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4348], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4348 [pid 4346] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4346] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4348 attached [pid 4348] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4348] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4348] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4346] <... futex resumed>) = 0 [pid 4346] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4346] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4348] <... futex resumed>) = 1 [pid 4348] read(5, NULL, 0) = 0 [pid 4348] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4346] <... futex resumed>) = 0 [pid 4348] <... futex resumed>) = 1 [pid 4348] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4347] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4347] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4347] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4346] exit_group(0 [pid 4347] <... futex resumed>) = ? [pid 4346] <... exit_group resumed>) = ? [pid 4348] <... futex resumed>) = ? [pid 4348] +++ exited with 0 +++ [pid 4347] +++ exited with 0 +++ [pid 4346] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4346, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4349 attached , child_tidptr=0x555556e316d0) = 4349 [pid 4349] set_robust_list(0x555556e316e0, 24) = 0 [pid 4349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4349] setpgid(0, 0) = 0 [pid 4349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4349] write(3, "1000", 4) = 4 [pid 4349] close(3) = 0 [pid 4349] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4349] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4349] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4349] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4350], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4350 [pid 4349] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4349] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4350 attached [pid 4350] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4350] memfd_create("syzkaller", 0) = 3 [pid 4350] ftruncate(3, 0) = 0 [pid 4350] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4350] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4350] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4350] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4350] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4349] <... futex resumed>) = 0 [pid 4349] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4349] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4350] <... futex resumed>) = 1 [pid 4350] pipe2([5, 6], 0) = 0 [pid 4350] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4349] <... futex resumed>) = 0 [pid 4350] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4349] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4349] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4350] <... write resumed>) = 64568 [pid 4350] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4350] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4349] <... futex resumed>) = 0 [pid 4349] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4349] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4350] <... futex resumed>) = 0 [pid 4350] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4349] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4349] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4349] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4349] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4349] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4349] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4349] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4349] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4351], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4351 [pid 4349] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4349] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4351 attached [pid 4351] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4351] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4350] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4351] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4350] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4351] <... futex resumed>) = 1 [pid 4350] <... futex resumed>) = 0 [pid 4349] <... futex resumed>) = 0 [pid 4350] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4349] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4351] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4350] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4349] <... futex resumed>) = 0 [pid 4350] read(5, [pid 4349] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4350] <... read resumed>NULL, 0) = 0 [pid 4350] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4349] <... futex resumed>) = 0 [pid 4350] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4349] exit_group(0 [pid 4350] <... futex resumed>) = ? [pid 4349] <... exit_group resumed>) = ? [pid 4351] <... futex resumed>) = ? [pid 4350] +++ exited with 0 +++ [pid 4351] +++ exited with 0 +++ [pid 4349] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4349, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4352 ./strace-static-x86_64: Process 4352 attached [pid 4352] set_robust_list(0x555556e316e0, 24) = 0 [pid 4352] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4352] setpgid(0, 0) = 0 [pid 4352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4352] write(3, "1000", 4) = 4 [pid 4352] close(3) = 0 [pid 4352] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4352] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4352] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4352] clone(child_stack=0x7fbc2b61e2f0, 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 4353 attached , parent_tid=[4353], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4353 [pid 4353] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4353] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4352] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4353] <... futex resumed>) = 0 [pid 4352] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4353] memfd_create("syzkaller", 0) = 3 [pid 4353] ftruncate(3, 0) = 0 [pid 4353] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4353] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4353] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4353] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4353] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4352] <... futex resumed>) = 0 [pid 4352] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4352] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4353] pipe2([5, 6], 0) = 0 [pid 4353] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4352] <... futex resumed>) = 0 [pid 4352] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4352] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4353] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4353] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4352] <... futex resumed>) = 0 [pid 4352] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4353] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4352] <... futex resumed>) = 0 [pid 4352] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4352] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4352] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4352] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4352] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4354], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4354 [pid 4352] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4352] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4354 attached [pid 4354] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4354] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4353] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4353] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4353] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4354] <... write resumed>) = 8 [pid 4354] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4352] <... futex resumed>) = 0 [pid 4352] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4353] <... futex resumed>) = 0 [pid 4352] <... futex resumed>) = 1 [pid 4354] <... futex resumed>) = 1 [pid 4353] read(5, [pid 4352] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4353] <... read resumed>NULL, 0) = 0 [pid 4353] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4352] <... futex resumed>) = 0 [pid 4353] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4352] exit_group(0 [pid 4353] <... futex resumed>) = ? [pid 4352] <... exit_group resumed>) = ? [pid 4353] +++ exited with 0 +++ [pid 4354] +++ exited with 0 +++ [pid 4352] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4352, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4355 ./strace-static-x86_64: Process 4355 attached [pid 4355] set_robust_list(0x555556e316e0, 24) = 0 [pid 4355] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4355] setpgid(0, 0) = 0 [pid 4355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4355] write(3, "1000", 4) = 4 [pid 4355] close(3) = 0 [pid 4355] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4355] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4355] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4355] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4356], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4356 [pid 4355] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4355] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4356 attached [pid 4356] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4356] memfd_create("syzkaller", 0) = 3 [pid 4356] ftruncate(3, 0) = 0 [pid 4356] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4356] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4356] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4356] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4356] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4355] <... futex resumed>) = 0 [pid 4355] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4355] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4356] <... futex resumed>) = 1 [pid 4356] pipe2([5, 6], 0) = 0 [pid 4356] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4355] <... futex resumed>) = 0 [pid 4355] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4355] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4356] <... futex resumed>) = 1 [pid 4356] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4356] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4355] <... futex resumed>) = 0 [pid 4355] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4355] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4356] <... futex resumed>) = 1 [pid 4356] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4355] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4355] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4355] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4355] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4355] clone(child_stack=0x7fbc2b5fd2f0, 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 4357 attached [pid 4357] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4355] <... clone resumed>, parent_tid=[4357], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4357 [pid 4357] <... set_robust_list resumed>) = 0 [pid 4355] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4357] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4356] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4355] <... futex resumed>) = 0 [pid 4357] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4356] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4355] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4356] <... futex resumed>) = 0 [pid 4357] <... futex resumed>) = 0 [pid 4355] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4356] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4355] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4357] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4356] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4355] <... futex resumed>) = 0 [pid 4356] read(5, [pid 4355] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4356] <... read resumed>NULL, 0) = 0 [pid 4356] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4355] <... futex resumed>) = 0 [pid 4356] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4355] exit_group(0 [pid 4357] <... futex resumed>) = ? [pid 4356] <... futex resumed>) = ? [pid 4355] <... exit_group resumed>) = ? [pid 4357] +++ exited with 0 +++ [pid 4356] +++ exited with 0 +++ [pid 4355] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4355, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4358 attached , child_tidptr=0x555556e316d0) = 4358 [pid 4358] set_robust_list(0x555556e316e0, 24) = 0 [pid 4358] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4358] setpgid(0, 0) = 0 [pid 4358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4358] write(3, "1000", 4) = 4 [pid 4358] close(3) = 0 [pid 4358] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4358] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4358] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4358] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4359], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4359 [pid 4358] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4358] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4359 attached [pid 4359] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4359] memfd_create("syzkaller", 0) = 3 [pid 4359] ftruncate(3, 0) = 0 [pid 4359] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4359] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4359] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4359] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4359] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4358] <... futex resumed>) = 0 [pid 4358] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4358] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4359] <... futex resumed>) = 1 [pid 4359] pipe2([5, 6], 0) = 0 [pid 4359] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4358] <... futex resumed>) = 0 [pid 4358] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4358] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4359] <... futex resumed>) = 1 [pid 4359] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4359] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4358] <... futex resumed>) = 0 [pid 4358] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4358] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4359] <... futex resumed>) = 1 [pid 4359] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4358] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4358] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4358] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4358] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4358] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4358] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4358] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4360], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4360 [pid 4358] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4358] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4360 attached [pid 4360] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4360] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4359] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4359] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4359] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4360] <... write resumed>) = 8 [pid 4360] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4358] <... futex resumed>) = 0 [pid 4358] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4359] <... futex resumed>) = 0 [pid 4358] <... futex resumed>) = 1 [pid 4359] read(5, [pid 4358] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4359] <... read resumed>NULL, 0) = 0 [pid 4359] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4358] <... futex resumed>) = 0 [pid 4359] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4358] exit_group(0 [pid 4359] <... futex resumed>) = ? [pid 4358] <... exit_group resumed>) = ? [pid 4359] +++ exited with 0 +++ [pid 4360] <... futex resumed>) = ? [pid 4360] +++ exited with 0 +++ [pid 4358] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4358, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4361 ./strace-static-x86_64: Process 4361 attached [pid 4361] set_robust_list(0x555556e316e0, 24) = 0 [pid 4361] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4361] setpgid(0, 0) = 0 [pid 4361] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4361] write(3, "1000", 4) = 4 [pid 4361] close(3) = 0 [pid 4361] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4361] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4361] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4361] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4362], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4362 [pid 4361] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4361] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4362 attached [pid 4362] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4362] memfd_create("syzkaller", 0) = 3 [pid 4362] ftruncate(3, 0) = 0 [pid 4362] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4362] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4362] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4362] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4362] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4361] <... futex resumed>) = 0 [pid 4361] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4361] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4362] <... futex resumed>) = 1 [pid 4362] pipe2([5, 6], 0) = 0 [pid 4362] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4361] <... futex resumed>) = 0 [pid 4361] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4361] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4362] <... futex resumed>) = 1 [pid 4362] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4362] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4361] <... futex resumed>) = 0 [pid 4361] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4361] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4362] <... futex resumed>) = 1 [pid 4362] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4361] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4361] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4361] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4361] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4361] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4363], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4363 [pid 4361] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 4363 attached ) = 0 [pid 4361] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4363] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4363] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4362] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4362] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4362] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4363] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4363] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4361] <... futex resumed>) = 0 [pid 4361] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4362] <... futex resumed>) = 0 [pid 4361] <... futex resumed>) = 1 [pid 4362] read(5, [pid 4361] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4362] <... read resumed>NULL, 0) = 0 [pid 4362] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4361] <... futex resumed>) = 0 [pid 4362] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4361] exit_group(0 [pid 4363] <... futex resumed>) = ? [pid 4362] <... futex resumed>) = ? [pid 4361] <... exit_group resumed>) = ? [pid 4363] +++ exited with 0 +++ [pid 4362] +++ exited with 0 +++ [pid 4361] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4361, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4364 ./strace-static-x86_64: Process 4364 attached [pid 4364] set_robust_list(0x555556e316e0, 24) = 0 [pid 4364] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4364] setpgid(0, 0) = 0 [pid 4364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4364] write(3, "1000", 4) = 4 [pid 4364] close(3) = 0 [pid 4364] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4364] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4364] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4364] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4365], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4365 [pid 4364] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4364] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4365 attached [pid 4365] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4365] memfd_create("syzkaller", 0) = 3 [pid 4365] ftruncate(3, 0) = 0 [pid 4365] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4365] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4365] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4365] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4365] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4364] <... futex resumed>) = 0 [pid 4364] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4364] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4365] <... futex resumed>) = 1 [pid 4365] pipe2([5, 6], 0) = 0 [pid 4365] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4364] <... futex resumed>) = 0 [pid 4364] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4364] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4365] <... futex resumed>) = 1 [pid 4365] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4365] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4364] <... futex resumed>) = 0 [pid 4364] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4364] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4365] <... futex resumed>) = 1 [pid 4365] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4364] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4364] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4364] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4364] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4364] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4366], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4366 [pid 4364] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4364] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4366 attached [pid 4366] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4366] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4365] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4365] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4365] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4366] <... write resumed>) = 8 [pid 4366] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4364] <... futex resumed>) = 0 [pid 4364] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4365] <... futex resumed>) = 0 [pid 4364] <... futex resumed>) = 1 [pid 4365] read(5, [pid 4364] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4365] <... read resumed>NULL, 0) = 0 [pid 4365] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4364] <... futex resumed>) = 0 [pid 4365] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4364] exit_group(0 [pid 4365] <... futex resumed>) = ? [pid 4364] <... exit_group resumed>) = ? [pid 4365] +++ exited with 0 +++ [pid 4366] <... futex resumed>) = ? [pid 4366] +++ exited with 0 +++ [pid 4364] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4364, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4367 ./strace-static-x86_64: Process 4367 attached [pid 4367] set_robust_list(0x555556e316e0, 24) = 0 [pid 4367] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4367] setpgid(0, 0) = 0 [pid 4367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4367] write(3, "1000", 4) = 4 [pid 4367] close(3) = 0 [pid 4367] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4367] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4367] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4367] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4368], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4368 [pid 4367] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4367] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4368 attached [pid 4368] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4368] memfd_create("syzkaller", 0) = 3 [pid 4368] ftruncate(3, 0) = 0 [pid 4368] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4368] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4368] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4368] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4368] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4367] <... futex resumed>) = 0 [pid 4368] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4367] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4368] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4367] <... futex resumed>) = 0 [pid 4367] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4368] pipe2([5, 6], 0) = 0 [pid 4368] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4367] <... futex resumed>) = 0 [pid 4368] <... futex resumed>) = 1 [pid 4367] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4367] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4368] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4368] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4367] <... futex resumed>) = 0 [pid 4368] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4367] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4367] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4367] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4367] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4367] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4367] clone(child_stack=0x7fbc2b5fd2f0, 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 4369 attached [pid 4369] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4367] <... clone resumed>, parent_tid=[4369], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4369 [pid 4369] <... set_robust_list resumed>) = 0 [pid 4367] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4369] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4367] <... futex resumed>) = 0 [pid 4367] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4369] <... write resumed>) = 8 [pid 4368] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4368] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4369] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4368] <... futex resumed>) = 0 [pid 4369] <... futex resumed>) = 1 [pid 4368] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4367] <... futex resumed>) = 0 [pid 4369] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4367] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4368] <... futex resumed>) = 0 [pid 4367] <... futex resumed>) = 1 [pid 4368] read(5, [pid 4367] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4368] <... read resumed>NULL, 0) = 0 [pid 4368] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4367] <... futex resumed>) = 0 [pid 4368] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4367] exit_group(0 [pid 4368] <... futex resumed>) = ? [pid 4367] <... exit_group resumed>) = ? [pid 4369] <... futex resumed>) = ? [pid 4368] +++ exited with 0 +++ [pid 4369] +++ exited with 0 +++ [pid 4367] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4367, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4370 attached , child_tidptr=0x555556e316d0) = 4370 [pid 4370] set_robust_list(0x555556e316e0, 24) = 0 [pid 4370] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4370] setpgid(0, 0) = 0 [pid 4370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4370] write(3, "1000", 4) = 4 [pid 4370] close(3) = 0 [pid 4370] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4370] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4370] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4371], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4371 [pid 4370] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4370] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4371 attached [pid 4371] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4371] memfd_create("syzkaller", 0) = 3 [pid 4371] ftruncate(3, 0) = 0 [pid 4371] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4371] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4371] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4371] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4371] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4370] <... futex resumed>) = 0 [pid 4370] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4370] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4371] <... futex resumed>) = 1 [pid 4371] pipe2([5, 6], 0) = 0 [pid 4371] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4370] <... futex resumed>) = 0 [pid 4370] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4370] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4371] <... futex resumed>) = 1 [pid 4371] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4371] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4370] <... futex resumed>) = 0 [pid 4370] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4370] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4371] <... futex resumed>) = 1 [pid 4371] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4370] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4370] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4370] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4370] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4370] clone(child_stack=0x7fbc2b5fd2f0, 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 4372 attached , parent_tid=[4372], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4372 [pid 4372] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4370] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4372] <... set_robust_list resumed>) = 0 [pid 4370] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4372] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4371] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4372] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4371] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4372] <... futex resumed>) = 1 [pid 4371] <... futex resumed>) = 0 [pid 4372] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4371] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4370] <... futex resumed>) = 0 [pid 4370] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4371] <... futex resumed>) = 0 [pid 4370] <... futex resumed>) = 1 [pid 4371] read(5, [pid 4370] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4371] <... read resumed>NULL, 0) = 0 [pid 4371] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4370] <... futex resumed>) = 0 [pid 4371] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4370] exit_group(0 [pid 4372] <... futex resumed>) = ? [pid 4371] <... futex resumed>) = ? [pid 4370] <... exit_group resumed>) = ? [pid 4372] +++ exited with 0 +++ [pid 4371] +++ exited with 0 +++ [pid 4370] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4370, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4373 attached , child_tidptr=0x555556e316d0) = 4373 [pid 4373] set_robust_list(0x555556e316e0, 24) = 0 [pid 4373] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4373] setpgid(0, 0) = 0 [pid 4373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4373] write(3, "1000", 4) = 4 [pid 4373] close(3) = 0 [pid 4373] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4373] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4373] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4373] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4374], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4374 [pid 4373] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4373] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4374 attached [pid 4374] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4374] memfd_create("syzkaller", 0) = 3 [pid 4374] ftruncate(3, 0) = 0 [pid 4374] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4374] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4374] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4374] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4374] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4373] <... futex resumed>) = 0 [pid 4373] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4373] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4374] <... futex resumed>) = 1 [pid 4374] pipe2([5, 6], 0) = 0 [pid 4374] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4373] <... futex resumed>) = 0 [pid 4373] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4373] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4374] <... futex resumed>) = 1 [pid 4374] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4374] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4373] <... futex resumed>) = 0 [pid 4373] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4373] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4374] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4373] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4373] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4373] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4373] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4373] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4373] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4373] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4375], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4375 [pid 4373] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4373] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4375 attached [pid 4375] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4375] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4374] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4375] <... write resumed>) = 8 [pid 4375] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4374] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4373] <... futex resumed>) = 0 [pid 4374] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4373] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4373] <... futex resumed>) = 0 [pid 4374] read(5, [pid 4373] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4374] <... read resumed>NULL, 0) = 0 [pid 4374] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4375] <... futex resumed>) = 1 [pid 4374] <... futex resumed>) = 1 [pid 4373] <... futex resumed>) = 0 [pid 4374] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4375] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4373] exit_group(0 [pid 4375] <... futex resumed>) = ? [pid 4374] <... futex resumed>) = ? [pid 4373] <... exit_group resumed>) = ? [pid 4375] +++ exited with 0 +++ [pid 4374] +++ exited with 0 +++ [pid 4373] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4373, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4376 attached , child_tidptr=0x555556e316d0) = 4376 [pid 4376] set_robust_list(0x555556e316e0, 24) = 0 [pid 4376] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4376] setpgid(0, 0) = 0 [pid 4376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4376] write(3, "1000", 4) = 4 [pid 4376] close(3) = 0 [pid 4376] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4376] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4376] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4376] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4377], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4377 [pid 4376] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4376] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4377 attached [pid 4377] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4377] memfd_create("syzkaller", 0) = 3 [pid 4377] ftruncate(3, 0) = 0 [pid 4377] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4377] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4377] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4377] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4377] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4376] <... futex resumed>) = 0 [pid 4376] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4376] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4377] <... futex resumed>) = 1 [pid 4377] pipe2([5, 6], 0) = 0 [pid 4377] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4376] <... futex resumed>) = 0 [pid 4376] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4376] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4377] <... futex resumed>) = 1 [pid 4377] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4377] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4376] <... futex resumed>) = 0 [pid 4376] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4376] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4377] <... futex resumed>) = 1 [pid 4377] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4376] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4376] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4376] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4376] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4376] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4376] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4376] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4378], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4378 [pid 4376] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4376] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4378 attached [pid 4378] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4378] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4378] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4376] <... futex resumed>) = 0 [pid 4376] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4376] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4378] <... futex resumed>) = 1 [pid 4378] read(5, NULL, 0) = 0 [pid 4378] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4376] <... futex resumed>) = 0 [pid 4378] <... futex resumed>) = 1 [pid 4378] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4377] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4377] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4377] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4376] exit_group(0) = ? [pid 4377] <... futex resumed>) = ? [pid 4377] +++ exited with 0 +++ [pid 4378] <... futex resumed>) = ? [pid 4378] +++ exited with 0 +++ [pid 4376] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4376, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4379 ./strace-static-x86_64: Process 4379 attached [pid 4379] set_robust_list(0x555556e316e0, 24) = 0 [pid 4379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4379] setpgid(0, 0) = 0 [pid 4379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4379] write(3, "1000", 4) = 4 [pid 4379] close(3) = 0 [pid 4379] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4379] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4379] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4379] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4380], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4380 [pid 4379] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4379] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4380 attached [pid 4380] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4380] memfd_create("syzkaller", 0) = 3 [pid 4380] ftruncate(3, 0) = 0 [pid 4380] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4380] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4380] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4380] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4380] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4379] <... futex resumed>) = 0 [pid 4379] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4379] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4380] <... futex resumed>) = 1 [pid 4380] pipe2([5, 6], 0) = 0 [pid 4380] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4379] <... futex resumed>) = 0 [pid 4380] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4379] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4380] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4379] <... futex resumed>) = 0 [pid 4379] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4380] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4380] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4379] <... futex resumed>) = 0 [pid 4380] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4379] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4380] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4379] <... futex resumed>) = 0 [pid 4380] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4379] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4379] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4379] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4379] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4379] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4379] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4381], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4381 [pid 4379] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4379] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4381 attached [pid 4381] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4381] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4380] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4381] <... write resumed>) = 8 [pid 4380] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4380] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4381] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4379] <... futex resumed>) = 0 [pid 4379] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4380] <... futex resumed>) = 0 [pid 4379] <... futex resumed>) = 1 [pid 4380] read(5, [pid 4379] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4380] <... read resumed>NULL, 0) = 0 [pid 4380] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4379] <... futex resumed>) = 0 [pid 4380] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4379] exit_group(0 [pid 4380] <... futex resumed>) = ? [pid 4379] <... exit_group resumed>) = ? [pid 4380] +++ exited with 0 +++ [pid 4381] <... futex resumed>) = ? [pid 4381] +++ exited with 0 +++ [pid 4379] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4379, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4382 ./strace-static-x86_64: Process 4382 attached [pid 4382] set_robust_list(0x555556e316e0, 24) = 0 [pid 4382] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4382] setpgid(0, 0) = 0 [pid 4382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4382] write(3, "1000", 4) = 4 [pid 4382] close(3) = 0 [pid 4382] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4382] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4382] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4382] clone(child_stack=0x7fbc2b61e2f0, 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 4383 attached , parent_tid=[4383], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4383 [pid 4383] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4383] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4382] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4383] <... futex resumed>) = 0 [pid 4383] memfd_create("syzkaller", 0 [pid 4382] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4383] <... memfd_create resumed>) = 3 [pid 4383] ftruncate(3, 0) = 0 [pid 4383] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4383] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4383] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4383] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4383] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4383] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4382] <... futex resumed>) = 0 [pid 4382] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4382] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4383] <... futex resumed>) = 0 [pid 4383] pipe2([5, 6], 0) = 0 [pid 4383] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4382] <... futex resumed>) = 0 [pid 4382] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4382] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4383] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4383] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4382] <... futex resumed>) = 0 [pid 4382] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4382] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4383] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4382] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4382] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4382] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4382] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4382] clone(child_stack=0x7fbc2b5fd2f0, 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 4384 attached , parent_tid=[4384], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4384 [pid 4384] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4382] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4384] <... set_robust_list resumed>) = 0 [pid 4382] <... futex resumed>) = 0 [pid 4384] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4382] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4384] <... write resumed>) = 8 [pid 4384] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4383] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4384] <... futex resumed>) = 1 [pid 4383] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4382] <... futex resumed>) = 0 [pid 4384] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4383] <... futex resumed>) = 0 [pid 4382] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4383] read(5, [pid 4382] <... futex resumed>) = 0 [pid 4383] <... read resumed>NULL, 0) = 0 [pid 4382] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4383] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4382] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4383] <... futex resumed>) = 0 [pid 4382] exit_group(0 [pid 4384] <... futex resumed>) = ? [pid 4382] <... exit_group resumed>) = ? [pid 4383] +++ exited with 0 +++ [pid 4384] +++ exited with 0 +++ [pid 4382] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4382, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4385 ./strace-static-x86_64: Process 4385 attached [pid 4385] set_robust_list(0x555556e316e0, 24) = 0 [pid 4385] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4385] setpgid(0, 0) = 0 [pid 4385] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4385] write(3, "1000", 4) = 4 [pid 4385] close(3) = 0 [pid 4385] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4385] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4385] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4385] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4386], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4386 [pid 4385] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4385] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4386 attached [pid 4386] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4386] memfd_create("syzkaller", 0) = 3 [pid 4386] ftruncate(3, 0) = 0 [pid 4386] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4386] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4386] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4386] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4386] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4385] <... futex resumed>) = 0 [pid 4385] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4385] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4386] <... futex resumed>) = 1 [pid 4386] pipe2([5, 6], 0) = 0 [pid 4386] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4385] <... futex resumed>) = 0 [pid 4385] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4385] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4386] <... futex resumed>) = 1 [pid 4386] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4386] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4385] <... futex resumed>) = 0 [pid 4385] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4385] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4386] <... futex resumed>) = 1 [pid 4386] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4385] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4385] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4385] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4385] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4385] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4385] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4385] clone(child_stack=0x7fbc2b5fd2f0, 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 4387 attached , parent_tid=[4387], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4387 [pid 4385] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4385] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4387] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4387] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4387] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4386] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4387] <... futex resumed>) = 1 [pid 4385] <... futex resumed>) = 0 [pid 4387] read(5, [pid 4385] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4387] <... read resumed>NULL, 0) = 0 [pid 4385] <... futex resumed>) = 0 [pid 4386] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4385] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4386] <... futex resumed>) = 0 [pid 4387] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4386] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4387] <... futex resumed>) = 1 [pid 4385] <... futex resumed>) = 0 [pid 4387] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4385] exit_group(0 [pid 4387] <... futex resumed>) = ? [pid 4385] <... exit_group resumed>) = ? [pid 4386] <... futex resumed>) = ? [pid 4386] +++ exited with 0 +++ [pid 4387] +++ exited with 0 +++ [pid 4385] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4385, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4388 ./strace-static-x86_64: Process 4388 attached [pid 4388] set_robust_list(0x555556e316e0, 24) = 0 [pid 4388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4388] setpgid(0, 0) = 0 [pid 4388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4388] write(3, "1000", 4) = 4 [pid 4388] close(3) = 0 [pid 4388] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4388] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4388] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4388] clone(child_stack=0x7fbc2b61e2f0, 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 4389 attached , parent_tid=[4389], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4389 [pid 4388] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4388] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4389] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4389] memfd_create("syzkaller", 0) = 3 [pid 4389] ftruncate(3, 0) = 0 [pid 4389] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4389] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4389] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4389] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4389] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4389] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4388] <... futex resumed>) = 0 [pid 4388] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4388] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4389] <... futex resumed>) = 0 [pid 4389] pipe2([5, 6], 0) = 0 [pid 4389] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4388] <... futex resumed>) = 0 [pid 4388] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4388] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4389] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4389] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4388] <... futex resumed>) = 0 [pid 4388] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4388] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4389] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4388] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4388] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4388] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4388] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4388] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4388] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4388] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4388] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4390], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4390 [pid 4388] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4388] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4390 attached [pid 4390] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4390] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4389] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4389] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4389] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4390] <... write resumed>) = 8 [pid 4390] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4388] <... futex resumed>) = 0 [pid 4388] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4389] <... futex resumed>) = 0 [pid 4388] <... futex resumed>) = 1 [pid 4389] read(5, [pid 4388] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4389] <... read resumed>NULL, 0) = 0 [pid 4389] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4388] <... futex resumed>) = 0 [pid 4389] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4388] exit_group(0 [pid 4389] <... futex resumed>) = ? [pid 4388] <... exit_group resumed>) = ? [pid 4389] +++ exited with 0 +++ [pid 4390] <... futex resumed>) = ? [pid 4390] +++ exited with 0 +++ [pid 4388] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4388, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4391 ./strace-static-x86_64: Process 4391 attached [pid 4391] set_robust_list(0x555556e316e0, 24) = 0 [pid 4391] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4391] setpgid(0, 0) = 0 [pid 4391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4391] write(3, "1000", 4) = 4 [pid 4391] close(3) = 0 [pid 4391] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4391] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4391] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4391] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4392], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4392 [pid 4391] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4391] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4392 attached [pid 4392] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4392] memfd_create("syzkaller", 0) = 3 [pid 4392] ftruncate(3, 0) = 0 [pid 4392] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4392] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4392] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4392] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4392] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4391] <... futex resumed>) = 0 [pid 4391] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4391] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4392] <... futex resumed>) = 1 [pid 4392] pipe2([5, 6], 0) = 0 [pid 4392] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4391] <... futex resumed>) = 0 [pid 4391] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4391] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4392] <... futex resumed>) = 1 [pid 4392] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4392] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4391] <... futex resumed>) = 0 [pid 4391] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4391] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4392] <... futex resumed>) = 1 [pid 4392] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4391] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4391] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4391] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4391] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4391] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4393], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4393 [pid 4391] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4391] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4393 attached [pid 4393] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4393] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4393] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4391] <... futex resumed>) = 0 [pid 4391] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4391] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4393] <... futex resumed>) = 1 [pid 4393] read(5, NULL, 0) = 0 [pid 4393] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4391] <... futex resumed>) = 0 [pid 4393] <... futex resumed>) = 1 [pid 4393] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4392] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4392] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4392] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4391] exit_group(0 [pid 4393] <... futex resumed>) = ? [pid 4391] <... exit_group resumed>) = ? [pid 4392] <... futex resumed>) = ? [pid 4392] +++ exited with 0 +++ [pid 4393] +++ exited with 0 +++ [pid 4391] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4391, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4394 ./strace-static-x86_64: Process 4394 attached [pid 4394] set_robust_list(0x555556e316e0, 24) = 0 [pid 4394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4394] setpgid(0, 0) = 0 [pid 4394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4394] write(3, "1000", 4) = 4 [pid 4394] close(3) = 0 [pid 4394] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4394] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4394] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4394] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4395], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4395 [pid 4394] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4394] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4395 attached [pid 4395] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4395] memfd_create("syzkaller", 0) = 3 [pid 4395] ftruncate(3, 0) = 0 [pid 4395] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4395] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4395] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4395] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4395] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4394] <... futex resumed>) = 0 [pid 4395] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4394] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4394] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4395] pipe2([5, 6], 0) = 0 [pid 4395] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4395] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4394] <... futex resumed>) = 0 [pid 4394] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4395] <... futex resumed>) = 0 [pid 4394] <... futex resumed>) = 1 [pid 4394] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4395] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4395] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4394] <... futex resumed>) = 0 [pid 4395] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4394] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4394] <... futex resumed>) = 0 [pid 4395] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4394] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4394] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4394] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4394] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4394] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4394] clone(child_stack=0x7fbc2b5fd2f0, 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 4396 attached , parent_tid=[4396], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4396 [pid 4396] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4394] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4396] <... set_robust_list resumed>) = 0 [pid 4394] <... futex resumed>) = 0 [pid 4396] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4394] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4396] <... write resumed>) = 8 [pid 4396] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4395] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4396] <... futex resumed>) = 1 [pid 4395] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4394] <... futex resumed>) = 0 [pid 4396] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4395] <... futex resumed>) = 0 [pid 4394] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4395] read(5, [pid 4394] <... futex resumed>) = 0 [pid 4395] <... read resumed>NULL, 0) = 0 [pid 4394] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4395] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4394] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4395] <... futex resumed>) = 0 [pid 4394] exit_group(0 [pid 4396] <... futex resumed>) = ? [pid 4394] <... exit_group resumed>) = ? [pid 4396] +++ exited with 0 +++ [pid 4395] +++ exited with 0 +++ [pid 4394] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4394, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4397 ./strace-static-x86_64: Process 4397 attached [pid 4397] set_robust_list(0x555556e316e0, 24) = 0 [pid 4397] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4397] setpgid(0, 0) = 0 [pid 4397] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4397] write(3, "1000", 4) = 4 [pid 4397] close(3) = 0 [pid 4397] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4397] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4397] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4397] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4398], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4398 [pid 4397] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4397] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4398 attached [pid 4398] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4398] memfd_create("syzkaller", 0) = 3 [pid 4398] ftruncate(3, 0) = 0 [pid 4398] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4398] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4398] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4398] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4398] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4397] <... futex resumed>) = 0 [pid 4397] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4397] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4398] <... futex resumed>) = 1 [pid 4398] pipe2([5, 6], 0) = 0 [pid 4398] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4397] <... futex resumed>) = 0 [pid 4397] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4397] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4398] <... futex resumed>) = 1 [pid 4398] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4398] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4397] <... futex resumed>) = 0 [pid 4397] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4397] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4398] <... futex resumed>) = 1 [pid 4398] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4397] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4397] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4397] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4397] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4397] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4397] clone(child_stack=0x7fbc2b5fd2f0, 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 4399 attached , parent_tid=[4399], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4399 [pid 4399] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4397] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4399] <... set_robust_list resumed>) = 0 [pid 4397] <... futex resumed>) = 0 [pid 4399] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4397] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4399] <... write resumed>) = 8 [pid 4398] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4399] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4398] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4399] <... futex resumed>) = 1 [pid 4398] <... futex resumed>) = 0 [pid 4397] <... futex resumed>) = 0 [pid 4399] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4398] read(5, [pid 4397] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4398] <... read resumed>NULL, 0) = 0 [pid 4397] <... futex resumed>) = 0 [pid 4398] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4397] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4398] <... futex resumed>) = 0 [pid 4398] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4397] exit_group(0 [pid 4398] <... futex resumed>) = ? [pid 4397] <... exit_group resumed>) = ? [pid 4399] <... futex resumed>) = ? [pid 4398] +++ exited with 0 +++ [pid 4399] +++ exited with 0 +++ [pid 4397] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4397, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4400 attached , child_tidptr=0x555556e316d0) = 4400 [pid 4400] set_robust_list(0x555556e316e0, 24) = 0 [pid 4400] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4400] setpgid(0, 0) = 0 [pid 4400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4400] write(3, "1000", 4) = 4 [pid 4400] close(3) = 0 [pid 4400] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4400] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4400] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4400] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4401], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4401 [pid 4400] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4400] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4401 attached [pid 4401] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4401] memfd_create("syzkaller", 0) = 3 [pid 4401] ftruncate(3, 0) = 0 [pid 4401] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4401] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4401] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4401] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4401] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4400] <... futex resumed>) = 0 [pid 4400] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4400] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4401] <... futex resumed>) = 1 [pid 4401] pipe2([5, 6], 0) = 0 [pid 4401] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4400] <... futex resumed>) = 0 [pid 4400] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4400] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4401] <... futex resumed>) = 1 [pid 4401] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4401] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4400] <... futex resumed>) = 0 [pid 4400] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4400] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4401] <... futex resumed>) = 1 [pid 4401] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4400] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4400] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4400] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4400] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4400] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4400] clone(child_stack=0x7fbc2b5fd2f0, 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 4402 attached , parent_tid=[4402], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4402 [pid 4402] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4400] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4402] <... set_robust_list resumed>) = 0 [pid 4400] <... futex resumed>) = 0 [pid 4402] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4400] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4402] <... write resumed>) = 8 [pid 4402] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4401] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4400] <... futex resumed>) = 0 [pid 4402] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4401] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4400] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4401] <... futex resumed>) = 0 [pid 4400] <... futex resumed>) = 0 [pid 4401] read(5, [pid 4400] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4401] <... read resumed>NULL, 0) = 0 [pid 4401] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4400] <... futex resumed>) = 0 [pid 4401] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4400] exit_group(0 [pid 4401] <... futex resumed>) = ? [pid 4400] <... exit_group resumed>) = ? [pid 4402] <... futex resumed>) = ? [pid 4401] +++ exited with 0 +++ [pid 4402] +++ exited with 0 +++ [pid 4400] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4400, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4403 attached , child_tidptr=0x555556e316d0) = 4403 [pid 4403] set_robust_list(0x555556e316e0, 24) = 0 [pid 4403] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4403] setpgid(0, 0) = 0 [pid 4403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4403] write(3, "1000", 4) = 4 [pid 4403] close(3) = 0 [pid 4403] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4403] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4403] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4403] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4404], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4404 [pid 4403] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4403] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4404 attached [pid 4404] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4404] memfd_create("syzkaller", 0) = 3 [pid 4404] ftruncate(3, 0) = 0 [pid 4404] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4404] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4404] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4404] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4404] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4403] <... futex resumed>) = 0 [pid 4403] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4403] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4404] <... futex resumed>) = 1 [pid 4404] pipe2([5, 6], 0) = 0 [pid 4404] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4403] <... futex resumed>) = 0 [pid 4403] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4403] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4404] <... futex resumed>) = 1 [pid 4404] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4404] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4403] <... futex resumed>) = 0 [pid 4403] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4403] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4404] <... futex resumed>) = 1 [pid 4404] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4403] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4403] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4403] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4403] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4403] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4403] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4403] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4405], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4405 [pid 4403] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4403] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4405 attached [pid 4405] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4405] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4404] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4404] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4404] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4405] <... write resumed>) = 8 [pid 4405] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4403] <... futex resumed>) = 0 [pid 4403] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4404] <... futex resumed>) = 0 [pid 4403] <... futex resumed>) = 1 [pid 4404] read(5, [pid 4403] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4404] <... read resumed>NULL, 0) = 0 [pid 4404] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4403] <... futex resumed>) = 0 [pid 4404] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4403] exit_group(0 [pid 4404] <... futex resumed>) = ? [pid 4403] <... exit_group resumed>) = ? [pid 4404] +++ exited with 0 +++ [pid 4405] <... futex resumed>) = ? [pid 4405] +++ exited with 0 +++ [pid 4403] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4403, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4406 ./strace-static-x86_64: Process 4406 attached [pid 4406] set_robust_list(0x555556e316e0, 24) = 0 [pid 4406] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4406] setpgid(0, 0) = 0 [pid 4406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4406] write(3, "1000", 4) = 4 [pid 4406] close(3) = 0 [pid 4406] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4406] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4406] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4406] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4407], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4407 [pid 4406] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4406] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4407 attached [pid 4407] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4407] memfd_create("syzkaller", 0) = 3 [pid 4407] ftruncate(3, 0) = 0 [pid 4407] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4407] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4407] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4407] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4407] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4406] <... futex resumed>) = 0 [pid 4406] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4406] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4407] <... futex resumed>) = 1 [pid 4407] pipe2([5, 6], 0) = 0 [pid 4407] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4406] <... futex resumed>) = 0 [pid 4407] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4406] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4407] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4406] <... futex resumed>) = 0 [pid 4407] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4406] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4407] <... write resumed>) = 64568 [pid 4407] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4406] <... futex resumed>) = 0 [pid 4406] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4407] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4406] <... futex resumed>) = 0 [pid 4406] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4406] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4406] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4406] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4406] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4406] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4406] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4408], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4408 [pid 4406] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4406] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4408 attached [pid 4408] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4408] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4407] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4407] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4407] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4408] <... write resumed>) = 8 [pid 4408] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4406] <... futex resumed>) = 0 [pid 4406] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4407] <... futex resumed>) = 0 [pid 4406] <... futex resumed>) = 1 [pid 4407] read(5, [pid 4406] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4407] <... read resumed>NULL, 0) = 0 [pid 4407] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4406] <... futex resumed>) = 0 [pid 4407] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4406] exit_group(0 [pid 4407] <... futex resumed>) = ? [pid 4406] <... exit_group resumed>) = ? [pid 4407] +++ exited with 0 +++ [pid 4408] <... futex resumed>) = ? [pid 4408] +++ exited with 0 +++ [pid 4406] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4406, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4409 ./strace-static-x86_64: Process 4409 attached [pid 4409] set_robust_list(0x555556e316e0, 24) = 0 [pid 4409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4409] setpgid(0, 0) = 0 [pid 4409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4409] write(3, "1000", 4) = 4 [pid 4409] close(3) = 0 [pid 4409] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4409] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4409] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4409] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4410], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4410 [pid 4409] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4409] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4410 attached [pid 4410] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4410] memfd_create("syzkaller", 0) = 3 [pid 4410] ftruncate(3, 0) = 0 [pid 4410] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4410] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4410] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4410] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4410] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4409] <... futex resumed>) = 0 [pid 4409] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4409] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4410] <... futex resumed>) = 1 [pid 4410] pipe2([5, 6], 0) = 0 [pid 4410] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4409] <... futex resumed>) = 0 [pid 4409] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4409] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4410] <... futex resumed>) = 1 [pid 4410] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4410] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4409] <... futex resumed>) = 0 [pid 4409] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4409] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4410] <... futex resumed>) = 1 [pid 4410] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4409] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4409] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4409] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4409] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4409] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4409] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4411], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4411 [pid 4409] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4409] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4411 attached [pid 4411] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4411] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4410] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4410] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4410] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4411] <... write resumed>) = 8 [pid 4411] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4409] <... futex resumed>) = 0 [pid 4409] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4410] <... futex resumed>) = 0 [pid 4409] <... futex resumed>) = 1 [pid 4410] read(5, [pid 4409] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4410] <... read resumed>NULL, 0) = 0 [pid 4410] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4409] <... futex resumed>) = 0 [pid 4410] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4409] exit_group(0 [pid 4410] <... futex resumed>) = ? [pid 4409] <... exit_group resumed>) = ? [pid 4410] +++ exited with 0 +++ [pid 4411] <... futex resumed>) = ? [pid 4411] +++ exited with 0 +++ [pid 4409] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4409, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4412 ./strace-static-x86_64: Process 4412 attached [pid 4412] set_robust_list(0x555556e316e0, 24) = 0 [pid 4412] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4412] setpgid(0, 0) = 0 [pid 4412] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4412] write(3, "1000", 4) = 4 [pid 4412] close(3) = 0 [pid 4412] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4412] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4412] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4412] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4413], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4413 [pid 4412] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4412] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4413 attached [pid 4413] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4413] memfd_create("syzkaller", 0) = 3 [pid 4413] ftruncate(3, 0) = 0 [pid 4413] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4413] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4413] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4413] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4413] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4412] <... futex resumed>) = 0 [pid 4412] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4412] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4413] <... futex resumed>) = 1 [pid 4413] pipe2([5, 6], 0) = 0 [pid 4413] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4412] <... futex resumed>) = 0 [pid 4413] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4412] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4412] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4413] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4413] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4413] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4412] <... futex resumed>) = 0 [pid 4412] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4412] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4413] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4412] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4412] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4412] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4412] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4412] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4414], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4414 [pid 4412] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4412] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4414 attached [pid 4414] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4414] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4413] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4413] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4413] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4414] <... write resumed>) = 8 [pid 4414] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4412] <... futex resumed>) = 0 [pid 4412] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4413] <... futex resumed>) = 0 [pid 4412] <... futex resumed>) = 1 [pid 4413] read(5, [pid 4412] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4413] <... read resumed>NULL, 0) = 0 [pid 4413] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4412] <... futex resumed>) = 0 [pid 4413] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4412] exit_group(0 [pid 4413] <... futex resumed>) = ? [pid 4412] <... exit_group resumed>) = ? [pid 4414] <... futex resumed>) = ? [pid 4413] +++ exited with 0 +++ [pid 4414] +++ exited with 0 +++ [pid 4412] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4412, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4415 ./strace-static-x86_64: Process 4415 attached [pid 4415] set_robust_list(0x555556e316e0, 24) = 0 [pid 4415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4415] setpgid(0, 0) = 0 [pid 4415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4415] write(3, "1000", 4) = 4 [pid 4415] close(3) = 0 [pid 4415] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4415] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4415] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4415] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4416], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4416 [pid 4415] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4415] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4416 attached [pid 4416] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4416] memfd_create("syzkaller", 0) = 3 [pid 4416] ftruncate(3, 0) = 0 [pid 4416] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4416] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4416] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4416] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4416] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4415] <... futex resumed>) = 0 [pid 4415] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4415] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4416] <... futex resumed>) = 1 [pid 4416] pipe2([5, 6], 0) = 0 [pid 4416] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4415] <... futex resumed>) = 0 [pid 4415] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4415] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4416] <... futex resumed>) = 1 [pid 4416] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4416] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4415] <... futex resumed>) = 0 [pid 4415] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4415] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4416] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4415] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4415] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4415] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4415] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4415] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4415] clone(child_stack=0x7fbc2b5fd2f0, 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 4417 attached , parent_tid=[4417], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4417 [pid 4417] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4415] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4417] <... set_robust_list resumed>) = 0 [pid 4415] <... futex resumed>) = 0 [pid 4417] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4415] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4417] <... write resumed>) = 8 [pid 4416] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4417] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4416] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4417] <... futex resumed>) = 1 [pid 4416] <... futex resumed>) = 0 [pid 4415] <... futex resumed>) = 0 [pid 4417] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4416] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4415] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4416] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4415] <... futex resumed>) = 0 [pid 4416] read(5, [pid 4415] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4416] <... read resumed>NULL, 0) = 0 [pid 4416] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4415] <... futex resumed>) = 0 [pid 4416] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4415] exit_group(0 [pid 4417] <... futex resumed>) = ? [pid 4416] <... futex resumed>) = ? [pid 4415] <... exit_group resumed>) = ? [pid 4417] +++ exited with 0 +++ [pid 4416] +++ exited with 0 +++ [pid 4415] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4415, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4418 attached , child_tidptr=0x555556e316d0) = 4418 [pid 4418] set_robust_list(0x555556e316e0, 24) = 0 [pid 4418] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4418] setpgid(0, 0) = 0 [pid 4418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4418] write(3, "1000", 4) = 4 [pid 4418] close(3) = 0 [pid 4418] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4418] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4418] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4418] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4419], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4419 [pid 4418] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4418] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4419 attached [pid 4419] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4419] memfd_create("syzkaller", 0) = 3 [pid 4419] ftruncate(3, 0) = 0 [pid 4419] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4419] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4419] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4419] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4419] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4418] <... futex resumed>) = 0 [pid 4419] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4418] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4419] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4418] <... futex resumed>) = 0 [pid 4419] pipe2( [pid 4418] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4419] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4419] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4418] <... futex resumed>) = 0 [pid 4419] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4418] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4419] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4418] <... futex resumed>) = 0 [pid 4419] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4418] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4419] <... write resumed>) = 64568 [pid 4419] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4418] <... futex resumed>) = 0 [pid 4419] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4418] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4419] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4418] <... futex resumed>) = 0 [pid 4419] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4418] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4418] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4418] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4418] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4418] clone(child_stack=0x7fbc2b5fd2f0, 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 4420 attached , parent_tid=[4420], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4420 [pid 4420] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4418] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4418] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4420] <... set_robust_list resumed>) = 0 [pid 4420] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4420] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4419] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4418] <... futex resumed>) = 0 [pid 4418] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4418] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4420] <... futex resumed>) = 1 [pid 4420] read(5, [pid 4419] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4420] <... read resumed>NULL, 0) = 0 [pid 4420] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4418] <... futex resumed>) = 0 [pid 4420] <... futex resumed>) = 1 [pid 4419] <... futex resumed>) = 0 [pid 4418] exit_group(0 [pid 4419] ????( [pid 4418] <... exit_group resumed>) = ? [pid 4419] <... ???? resumed>) = ? [pid 4420] +++ exited with 0 +++ [pid 4419] +++ exited with 0 +++ [pid 4418] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4418, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4421 ./strace-static-x86_64: Process 4421 attached [pid 4421] set_robust_list(0x555556e316e0, 24) = 0 [pid 4421] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4421] setpgid(0, 0) = 0 [pid 4421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4421] write(3, "1000", 4) = 4 [pid 4421] close(3) = 0 [pid 4421] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4421] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4421] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4421] clone(child_stack=0x7fbc2b61e2f0, 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 4422 attached [pid 4422] set_robust_list(0x7fbc2b61e9e0, 24 [pid 4421] <... clone resumed>, parent_tid=[4422], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4422 [pid 4422] <... set_robust_list resumed>) = 0 [pid 4421] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4421] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4422] memfd_create("syzkaller", 0) = 3 [pid 4422] ftruncate(3, 0) = 0 [pid 4422] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4422] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4422] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4422] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4422] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4421] <... futex resumed>) = 0 [pid 4422] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4421] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4422] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4421] <... futex resumed>) = 0 [pid 4422] pipe2( [pid 4421] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4422] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4422] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4421] <... futex resumed>) = 0 [pid 4421] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4422] <... futex resumed>) = 1 [pid 4422] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4421] <... futex resumed>) = 0 [pid 4421] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4422] <... write resumed>) = 64568 [pid 4422] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4421] <... futex resumed>) = 0 [pid 4422] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4421] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4421] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4422] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4422] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4421] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4421] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4421] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4421] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4421] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4423], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4423 [pid 4421] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4421] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4423 attached [pid 4423] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4423] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4422] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4422] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4422] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4423] <... write resumed>) = 8 [pid 4423] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4421] <... futex resumed>) = 0 [pid 4421] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4422] <... futex resumed>) = 0 [pid 4421] <... futex resumed>) = 1 [pid 4422] read(5, [pid 4421] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4422] <... read resumed>NULL, 0) = 0 [pid 4422] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4421] <... futex resumed>) = 0 [pid 4422] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4421] exit_group(0 [pid 4422] <... futex resumed>) = ? [pid 4421] <... exit_group resumed>) = ? [pid 4422] +++ exited with 0 +++ [pid 4423] <... futex resumed>) = ? [pid 4423] +++ exited with 0 +++ [pid 4421] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4421, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4424 ./strace-static-x86_64: Process 4424 attached [pid 4424] set_robust_list(0x555556e316e0, 24) = 0 [pid 4424] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4424] setpgid(0, 0) = 0 [pid 4424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4424] write(3, "1000", 4) = 4 [pid 4424] close(3) = 0 [pid 4424] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4424] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4424] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4424] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4425], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4425 [pid 4424] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4424] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4425 attached [pid 4425] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4425] memfd_create("syzkaller", 0) = 3 [pid 4425] ftruncate(3, 0) = 0 [pid 4425] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4425] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4425] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4425] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4425] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4424] <... futex resumed>) = 0 [pid 4425] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4424] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4425] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4424] <... futex resumed>) = 0 [pid 4425] pipe2( [pid 4424] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4425] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4425] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4424] <... futex resumed>) = 0 [pid 4425] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4424] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4425] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4424] <... futex resumed>) = 0 [pid 4425] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4424] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4425] <... write resumed>) = 64568 [pid 4425] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4424] <... futex resumed>) = 0 [pid 4424] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4424] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4425] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4424] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4424] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4424] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4424] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4424] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4424] clone(child_stack=0x7fbc2b5fd2f0, 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 4426 attached , parent_tid=[4426], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4426 [pid 4426] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4424] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4426] <... set_robust_list resumed>) = 0 [pid 4424] <... futex resumed>) = 0 [pid 4426] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4424] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4426] <... write resumed>) = 8 [pid 4425] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4426] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4425] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4426] <... futex resumed>) = 1 [pid 4425] <... futex resumed>) = 0 [pid 4424] <... futex resumed>) = 0 [pid 4426] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4425] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4424] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4425] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4425] read(5, [pid 4424] <... futex resumed>) = 0 [pid 4425] <... read resumed>NULL, 0) = 0 [pid 4425] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4424] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4425] <... futex resumed>) = 0 [pid 4425] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4424] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4424] exit_group(0 [pid 4426] <... futex resumed>) = ? [pid 4425] <... futex resumed>) = ? [pid 4424] <... exit_group resumed>) = ? [pid 4426] +++ exited with 0 +++ [pid 4425] +++ exited with 0 +++ [pid 4424] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4424, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4427 ./strace-static-x86_64: Process 4427 attached [pid 4427] set_robust_list(0x555556e316e0, 24) = 0 [pid 4427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4427] setpgid(0, 0) = 0 [pid 4427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4427] write(3, "1000", 4) = 4 [pid 4427] close(3) = 0 [pid 4427] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4427] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4427] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4427] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4428], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4428 [pid 4427] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4427] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4428 attached [pid 4428] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4428] memfd_create("syzkaller", 0) = 3 [pid 4428] ftruncate(3, 0) = 0 [pid 4428] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4428] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4428] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4428] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4428] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4427] <... futex resumed>) = 0 [pid 4427] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4427] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4428] <... futex resumed>) = 1 [pid 4428] pipe2([5, 6], 0) = 0 [pid 4428] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4427] <... futex resumed>) = 0 [pid 4427] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4427] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4428] <... futex resumed>) = 1 [pid 4428] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4428] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4427] <... futex resumed>) = 0 [pid 4427] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4427] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4428] <... futex resumed>) = 1 [pid 4428] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4427] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4427] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4427] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4427] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4427] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4429], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4429 [pid 4427] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4427] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4429 attached [pid 4429] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4429] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4428] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4428] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4428] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4429] <... write resumed>) = 8 [pid 4429] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4427] <... futex resumed>) = 0 [pid 4427] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4428] <... futex resumed>) = 0 [pid 4427] <... futex resumed>) = 1 [pid 4428] read(5, [pid 4427] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4428] <... read resumed>NULL, 0) = 0 [pid 4428] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4427] <... futex resumed>) = 0 [pid 4428] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4427] exit_group(0 [pid 4428] <... futex resumed>) = ? [pid 4427] <... exit_group resumed>) = ? [pid 4428] +++ exited with 0 +++ [pid 4429] <... futex resumed>) = ? [pid 4429] +++ exited with 0 +++ [pid 4427] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4427, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4430 ./strace-static-x86_64: Process 4430 attached [pid 4430] set_robust_list(0x555556e316e0, 24) = 0 [pid 4430] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4430] setpgid(0, 0) = 0 [pid 4430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4430] write(3, "1000", 4) = 4 [pid 4430] close(3) = 0 [pid 4430] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4430] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4430] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4430] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4431], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4431 [pid 4430] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4430] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4431 attached [pid 4431] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4431] memfd_create("syzkaller", 0) = 3 [pid 4431] ftruncate(3, 0) = 0 [pid 4431] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4431] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4431] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4431] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4431] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4430] <... futex resumed>) = 0 [pid 4430] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4430] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4431] <... futex resumed>) = 1 [pid 4431] pipe2([5, 6], 0) = 0 [pid 4431] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4430] <... futex resumed>) = 0 [pid 4430] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4430] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4431] <... futex resumed>) = 1 [pid 4431] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4431] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4430] <... futex resumed>) = 0 [pid 4430] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4430] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4431] <... futex resumed>) = 1 [pid 4431] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4430] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4430] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4430] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4430] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4430] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4432], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4432 [pid 4430] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4430] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4432 attached [pid 4432] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4432] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4432] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4430] <... futex resumed>) = 0 [pid 4431] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4430] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4431] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4430] <... futex resumed>) = 0 [pid 4431] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4430] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4432] <... futex resumed>) = 1 [pid 4432] read(5, NULL, 0) = 0 [pid 4432] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4430] <... futex resumed>) = 0 [pid 4430] exit_group(0) = ? [pid 4431] <... futex resumed>) = ? [pid 4432] <... futex resumed>) = ? [pid 4431] +++ exited with 0 +++ [pid 4432] +++ exited with 0 +++ [pid 4430] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4430, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4433 ./strace-static-x86_64: Process 4433 attached [pid 4433] set_robust_list(0x555556e316e0, 24) = 0 [pid 4433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4433] setpgid(0, 0) = 0 [pid 4433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4433] write(3, "1000", 4) = 4 [pid 4433] close(3) = 0 [pid 4433] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4433] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4433] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4433] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4434], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4434 [pid 4433] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4433] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4434 attached [pid 4434] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4434] memfd_create("syzkaller", 0) = 3 [pid 4434] ftruncate(3, 0) = 0 [pid 4434] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4434] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4434] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4434] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4434] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4433] <... futex resumed>) = 0 [pid 4433] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4433] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4434] <... futex resumed>) = 1 [pid 4434] pipe2([5, 6], 0) = 0 [pid 4434] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4433] <... futex resumed>) = 0 [pid 4433] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4433] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4434] <... futex resumed>) = 1 [pid 4434] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4434] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4433] <... futex resumed>) = 0 [pid 4433] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4433] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4434] <... futex resumed>) = 1 [pid 4434] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4433] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4433] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4433] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4433] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4433] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4435], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4435 ./strace-static-x86_64: Process 4435 attached [pid 4433] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4433] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4435] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4435] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4435] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4433] <... futex resumed>) = 0 [pid 4435] read(5, [pid 4433] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4435] <... read resumed>NULL, 0) = 0 [pid 4433] <... futex resumed>) = 0 [pid 4435] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4434] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4433] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4435] <... futex resumed>) = 0 [pid 4434] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4433] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4435] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4434] <... futex resumed>) = 0 [pid 4433] exit_group(0 [pid 4435] <... futex resumed>) = ? [pid 4433] <... exit_group resumed>) = ? [pid 4434] +++ exited with 0 +++ [pid 4435] +++ exited with 0 +++ [pid 4433] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4433, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4436 ./strace-static-x86_64: Process 4436 attached [pid 4436] set_robust_list(0x555556e316e0, 24) = 0 [pid 4436] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4436] setpgid(0, 0) = 0 [pid 4436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4436] write(3, "1000", 4) = 4 [pid 4436] close(3) = 0 [pid 4436] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4436] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4436] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4436] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4437], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4437 [pid 4436] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 4437 attached [pid 4436] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4437] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4437] memfd_create("syzkaller", 0) = 3 [pid 4437] ftruncate(3, 0) = 0 [pid 4437] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4437] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4437] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4437] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4437] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4437] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4436] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4436] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4437] <... futex resumed>) = 0 [pid 4437] pipe2([5, 6], 0) = 0 [pid 4436] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4437] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4436] <... futex resumed>) = 0 [pid 4436] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4436] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4437] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4437] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4436] <... futex resumed>) = 0 [pid 4436] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4436] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4437] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4436] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4436] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4436] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4436] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4436] clone(child_stack=0x7fbc2b5fd2f0, 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 4438 attached , parent_tid=[4438], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4438 [pid 4438] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4438] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4436] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4438] <... futex resumed>) = 0 [pid 4436] <... futex resumed>) = 1 [pid 4436] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4438] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4438] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4436] <... futex resumed>) = 0 [pid 4438] read(5, [pid 4436] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4438] <... read resumed>NULL, 0) = 0 [pid 4436] <... futex resumed>) = 0 [pid 4438] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4436] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4438] <... futex resumed>) = 0 [pid 4436] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4438] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4437] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4437] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4437] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4436] exit_group(0 [pid 4438] <... futex resumed>) = ? [pid 4437] <... futex resumed>) = ? [pid 4436] <... exit_group resumed>) = ? [pid 4437] +++ exited with 0 +++ [pid 4438] +++ exited with 0 +++ [pid 4436] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4436, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4439 ./strace-static-x86_64: Process 4439 attached [pid 4439] set_robust_list(0x555556e316e0, 24) = 0 [pid 4439] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4439] setpgid(0, 0) = 0 [pid 4439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4439] write(3, "1000", 4) = 4 [pid 4439] close(3) = 0 [pid 4439] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4439] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4439] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4439] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4440], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4440 [pid 4439] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4439] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4440 attached [pid 4440] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4440] memfd_create("syzkaller", 0) = 3 [pid 4440] ftruncate(3, 0) = 0 [pid 4440] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4440] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4440] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4440] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4440] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4439] <... futex resumed>) = 0 [pid 4439] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4439] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4440] <... futex resumed>) = 1 [pid 4440] pipe2([5, 6], 0) = 0 [pid 4440] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4439] <... futex resumed>) = 0 [pid 4439] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4439] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4440] <... futex resumed>) = 1 [pid 4440] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4440] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4439] <... futex resumed>) = 0 [pid 4439] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4439] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4440] <... futex resumed>) = 1 [pid 4440] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4439] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4439] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4439] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4439] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4439] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4439] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4441], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4441 [pid 4439] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4439] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4441 attached [pid 4441] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4441] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4440] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4440] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4440] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4441] <... write resumed>) = 8 [pid 4441] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4439] <... futex resumed>) = 0 [pid 4439] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4440] <... futex resumed>) = 0 [pid 4439] <... futex resumed>) = 1 [pid 4440] read(5, [pid 4439] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4440] <... read resumed>NULL, 0) = 0 [pid 4440] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4439] <... futex resumed>) = 0 [pid 4440] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4439] exit_group(0 [pid 4440] <... futex resumed>) = ? [pid 4439] <... exit_group resumed>) = ? [pid 4440] +++ exited with 0 +++ [pid 4441] <... futex resumed>) = ? [pid 4441] +++ exited with 0 +++ [pid 4439] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4439, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4442 ./strace-static-x86_64: Process 4442 attached [pid 4442] set_robust_list(0x555556e316e0, 24) = 0 [pid 4442] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4442] setpgid(0, 0) = 0 [pid 4442] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4442] write(3, "1000", 4) = 4 [pid 4442] close(3) = 0 [pid 4442] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4442] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4442] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4442] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4443], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4443 [pid 4442] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4442] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4443 attached [pid 4443] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4443] memfd_create("syzkaller", 0) = 3 [pid 4443] ftruncate(3, 0) = 0 [pid 4443] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4443] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4443] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4443] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4443] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4443] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4442] <... futex resumed>) = 0 [pid 4442] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4442] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4443] <... futex resumed>) = 0 [pid 4443] pipe2([5, 6], 0) = 0 [pid 4443] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4442] <... futex resumed>) = 0 [pid 4442] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4442] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4443] <... futex resumed>) = 1 [pid 4443] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4443] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4442] <... futex resumed>) = 0 [pid 4442] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4442] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4443] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4442] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4442] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4442] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4442] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4442] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4442] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4442] clone(child_stack=0x7fbc2b5fd2f0, 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 4444 attached , parent_tid=[4444], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4444 [pid 4444] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4442] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4444] <... set_robust_list resumed>) = 0 [pid 4442] <... futex resumed>) = 0 [pid 4444] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4442] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4444] <... write resumed>) = 8 [pid 4443] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4444] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4443] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4444] <... futex resumed>) = 1 [pid 4443] <... futex resumed>) = 0 [pid 4442] <... futex resumed>) = 0 [pid 4444] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4443] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4442] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4443] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4442] <... futex resumed>) = 0 [pid 4443] read(5, [pid 4442] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4443] <... read resumed>NULL, 0) = 0 [pid 4443] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4442] <... futex resumed>) = 0 [pid 4443] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4442] exit_group(0 [pid 4443] <... futex resumed>) = ? [pid 4442] <... exit_group resumed>) = ? [pid 4444] <... futex resumed>) = ? [pid 4443] +++ exited with 0 +++ [pid 4444] +++ exited with 0 +++ [pid 4442] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4442, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4445 ./strace-static-x86_64: Process 4445 attached [pid 4445] set_robust_list(0x555556e316e0, 24) = 0 [pid 4445] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4445] setpgid(0, 0) = 0 [pid 4445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4445] write(3, "1000", 4) = 4 [pid 4445] close(3) = 0 [pid 4445] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4445] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4445] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4445] clone(child_stack=0x7fbc2b61e2f0, 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 4446 attached [pid 4446] set_robust_list(0x7fbc2b61e9e0, 24 [pid 4445] <... clone resumed>, parent_tid=[4446], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4446 [pid 4445] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4445] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4446] <... set_robust_list resumed>) = 0 [pid 4446] memfd_create("syzkaller", 0) = 3 [pid 4446] ftruncate(3, 0) = 0 [pid 4446] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4446] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4446] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4446] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4446] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4446] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4445] <... futex resumed>) = 0 [pid 4445] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4445] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4446] <... futex resumed>) = 0 [pid 4446] pipe2([5, 6], 0) = 0 [pid 4446] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4445] <... futex resumed>) = 0 [pid 4445] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4445] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4446] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4446] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4445] <... futex resumed>) = 0 [pid 4446] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4445] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4445] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4445] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4445] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4445] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4445] clone(child_stack=0x7fbc2b5fd2f0, 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 4447 attached , parent_tid=[4447], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4447 [pid 4447] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4445] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4445] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4447] <... set_robust_list resumed>) = 0 [pid 4447] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4447] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4446] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4447] <... futex resumed>) = 1 [pid 4445] <... futex resumed>) = 0 [pid 4447] read(5, [pid 4445] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4447] <... read resumed>NULL, 0) = 0 [pid 4445] <... futex resumed>) = 0 [pid 4447] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4445] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4447] <... futex resumed>) = 0 [pid 4445] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4447] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4446] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4446] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4445] exit_group(0 [pid 4447] <... futex resumed>) = ? [pid 4446] <... futex resumed>) = ? [pid 4445] <... exit_group resumed>) = ? [pid 4447] +++ exited with 0 +++ [pid 4446] +++ exited with 0 +++ [pid 4445] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4445, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4448 ./strace-static-x86_64: Process 4448 attached [pid 4448] set_robust_list(0x555556e316e0, 24) = 0 [pid 4448] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4448] setpgid(0, 0) = 0 [pid 4448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4448] write(3, "1000", 4) = 4 [pid 4448] close(3) = 0 [pid 4448] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4448] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4448] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4448] clone(child_stack=0x7fbc2b61e2f0, 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 4449 attached , parent_tid=[4449], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4449 [pid 4449] set_robust_list(0x7fbc2b61e9e0, 24 [pid 4448] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4448] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4449] <... set_robust_list resumed>) = 0 [pid 4449] memfd_create("syzkaller", 0) = 3 [pid 4449] ftruncate(3, 0) = 0 [pid 4449] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4449] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4449] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4449] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4449] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4448] <... futex resumed>) = 0 [pid 4449] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 4448] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4449] pipe2( [pid 4448] <... futex resumed>) = 0 [pid 4449] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4448] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4449] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4448] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4448] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4448] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4449] <... futex resumed>) = 0 [pid 4449] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4449] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4448] <... futex resumed>) = 0 [pid 4449] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4448] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4449] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4448] <... futex resumed>) = 0 [pid 4449] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4448] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4448] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4448] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4448] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4448] clone(child_stack=0x7fbc2b5fd2f0, 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 4450 attached , parent_tid=[4450], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4450 [pid 4448] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4448] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4450] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4450] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4449] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4450] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4448] <... futex resumed>) = 0 [pid 4450] read(5, [pid 4448] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4450] <... read resumed>NULL, 0) = 0 [pid 4449] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4448] <... futex resumed>) = 0 [pid 4450] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4448] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4450] <... futex resumed>) = 0 [pid 4449] <... futex resumed>) = 0 [pid 4448] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4450] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4448] exit_group(0 [pid 4450] <... futex resumed>) = ? [pid 4448] <... exit_group resumed>) = ? [pid 4449] +++ exited with 0 +++ [pid 4450] +++ exited with 0 +++ [pid 4448] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4448, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4451 ./strace-static-x86_64: Process 4451 attached [pid 4451] set_robust_list(0x555556e316e0, 24) = 0 [pid 4451] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4451] setpgid(0, 0) = 0 [pid 4451] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4451] write(3, "1000", 4) = 4 [pid 4451] close(3) = 0 [pid 4451] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4451] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4451] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4451] clone(child_stack=0x7fbc2b61e2f0, 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 4452 attached , parent_tid=[4452], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4452 [pid 4452] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4451] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4451] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4452] memfd_create("syzkaller", 0) = 3 [pid 4452] ftruncate(3, 0) = 0 [pid 4452] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4452] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4452] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4452] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4452] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4451] <... futex resumed>) = 0 [pid 4451] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4451] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4452] pipe2([5, 6], 0) = 0 [pid 4452] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4451] <... futex resumed>) = 0 [pid 4451] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4451] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4452] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4452] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4451] <... futex resumed>) = 0 [pid 4451] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4451] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4452] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4451] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4451] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4451] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4451] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4451] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4451] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4451] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4451] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4453], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4453 [pid 4451] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4451] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4453 attached [pid 4453] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4453] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4452] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4452] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4452] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4453] <... write resumed>) = 8 [pid 4453] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4451] <... futex resumed>) = 0 [pid 4451] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4452] <... futex resumed>) = 0 [pid 4451] <... futex resumed>) = 1 [pid 4452] read(5, [pid 4451] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4452] <... read resumed>NULL, 0) = 0 [pid 4452] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4451] <... futex resumed>) = 0 [pid 4452] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4451] exit_group(0 [pid 4452] <... futex resumed>) = ? [pid 4451] <... exit_group resumed>) = ? [pid 4452] +++ exited with 0 +++ [pid 4453] <... futex resumed>) = ? syzkaller login: [ 70.595879][ T1236] ieee802154 phy0 wpan0: encryption failed: -22 [ 70.596006][ T918] cfg80211: failed to load regulatory.db [ 70.602274][ T1236] ieee802154 phy1 wpan1: encryption failed: -22 [pid 4453] +++ exited with 0 +++ [pid 4451] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4451, si_uid=0, si_status=0, si_utime=1, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4454 ./strace-static-x86_64: Process 4454 attached [pid 4454] set_robust_list(0x555556e316e0, 24) = 0 [pid 4454] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4454] setpgid(0, 0) = 0 [pid 4454] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4454] write(3, "1000", 4) = 4 [pid 4454] close(3) = 0 [pid 4454] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4454] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4454] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4454] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4455], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4455 [pid 4454] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4454] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4455 attached [pid 4455] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4455] memfd_create("syzkaller", 0) = 3 [pid 4455] ftruncate(3, 0) = 0 [pid 4455] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4455] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4455] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4455] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4455] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4454] <... futex resumed>) = 0 [pid 4455] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4454] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4454] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4455] <... futex resumed>) = 0 [pid 4455] pipe2([5, 6], 0) = 0 [pid 4455] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4454] <... futex resumed>) = 0 [pid 4454] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4454] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4455] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4455] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4454] <... futex resumed>) = 0 [pid 4454] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4454] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4455] <... futex resumed>) = 1 [pid 4455] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4454] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4454] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4454] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4454] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4454] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4454] clone(child_stack=0x7fbc2b5fd2f0, 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 4456 attached , parent_tid=[4456], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4456 [pid 4454] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4454] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4456] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4456] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4455] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4456] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4455] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4456] <... futex resumed>) = 1 [pid 4455] <... futex resumed>) = 0 [pid 4454] <... futex resumed>) = 0 [pid 4456] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4455] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4454] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4455] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4454] <... futex resumed>) = 0 [pid 4455] read(5, [pid 4454] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4455] <... read resumed>NULL, 0) = 0 [pid 4455] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4454] <... futex resumed>) = 0 [pid 4455] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4454] exit_group(0 [pid 4456] <... futex resumed>) = ? [pid 4455] <... futex resumed>) = ? [pid 4454] <... exit_group resumed>) = ? [pid 4456] +++ exited with 0 +++ [pid 4455] +++ exited with 0 +++ [pid 4454] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4454, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4457 ./strace-static-x86_64: Process 4457 attached [pid 4457] set_robust_list(0x555556e316e0, 24) = 0 [pid 4457] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4457] setpgid(0, 0) = 0 [pid 4457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4457] write(3, "1000", 4) = 4 [pid 4457] close(3) = 0 [pid 4457] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4457] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4457] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4457] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4458], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4458 [pid 4457] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4457] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4458 attached [pid 4458] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4458] memfd_create("syzkaller", 0) = 3 [pid 4458] ftruncate(3, 0) = 0 [pid 4458] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4458] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4458] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4458] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4458] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4457] <... futex resumed>) = 0 [pid 4457] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4457] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4458] <... futex resumed>) = 1 [pid 4458] pipe2([5, 6], 0) = 0 [pid 4458] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4457] <... futex resumed>) = 0 [pid 4457] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4457] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4458] <... futex resumed>) = 1 [pid 4458] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4458] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4457] <... futex resumed>) = 0 [pid 4457] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4457] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4458] <... futex resumed>) = 1 [pid 4458] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4457] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4457] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4457] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4457] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4457] clone(child_stack=0x7fbc2b5fd2f0, 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 4459 attached , parent_tid=[4459], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4459 [pid 4459] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4459] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4457] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4457] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4459] <... futex resumed>) = 0 [pid 4459] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4459] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4458] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4458] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4458] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4459] <... futex resumed>) = 1 [pid 4457] <... futex resumed>) = 0 [pid 4459] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4457] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4458] <... futex resumed>) = 0 [pid 4457] <... futex resumed>) = 1 [pid 4458] read(5, [pid 4457] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4458] <... read resumed>NULL, 0) = 0 [pid 4458] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4457] <... futex resumed>) = 0 [pid 4458] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4457] exit_group(0 [pid 4459] <... futex resumed>) = ? [pid 4458] <... futex resumed>) = ? [pid 4457] <... exit_group resumed>) = ? [pid 4459] +++ exited with 0 +++ [pid 4458] +++ exited with 0 +++ [pid 4457] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4457, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4460 ./strace-static-x86_64: Process 4460 attached [pid 4460] set_robust_list(0x555556e316e0, 24) = 0 [pid 4460] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4460] setpgid(0, 0) = 0 [pid 4460] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4460] write(3, "1000", 4) = 4 [pid 4460] close(3) = 0 [pid 4460] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4460] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4460] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4460] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4461], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4461 [pid 4460] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4460] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4461 attached [pid 4461] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4461] memfd_create("syzkaller", 0) = 3 [pid 4461] ftruncate(3, 0) = 0 [pid 4461] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4461] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4461] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4461] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4461] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4460] <... futex resumed>) = 0 [pid 4460] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4460] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4461] <... futex resumed>) = 1 [pid 4461] pipe2([5, 6], 0) = 0 [pid 4461] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4460] <... futex resumed>) = 0 [pid 4460] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4460] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4461] <... futex resumed>) = 1 [pid 4461] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4461] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4460] <... futex resumed>) = 0 [pid 4460] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4460] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4461] <... futex resumed>) = 1 [pid 4461] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4460] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4460] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4460] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4460] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4460] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4460] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4460] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4462], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4462 [pid 4460] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4460] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4462 attached [pid 4462] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4462] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4461] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4461] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4461] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4462] <... write resumed>) = 8 [pid 4462] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4460] <... futex resumed>) = 0 [pid 4460] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4461] <... futex resumed>) = 0 [pid 4460] <... futex resumed>) = 1 [pid 4461] read(5, [pid 4460] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4461] <... read resumed>NULL, 0) = 0 [pid 4461] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4460] <... futex resumed>) = 0 [pid 4461] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4460] exit_group(0 [pid 4461] <... futex resumed>) = ? [pid 4460] <... exit_group resumed>) = ? [pid 4461] +++ exited with 0 +++ [pid 4462] <... futex resumed>) = ? [pid 4462] +++ exited with 0 +++ [pid 4460] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4460, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4463 ./strace-static-x86_64: Process 4463 attached [pid 4463] set_robust_list(0x555556e316e0, 24) = 0 [pid 4463] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4463] setpgid(0, 0) = 0 [pid 4463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4463] write(3, "1000", 4) = 4 [pid 4463] close(3) = 0 [pid 4463] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4463] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4463] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4463] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4464], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4464 [pid 4463] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4463] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4464 attached [pid 4464] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4464] memfd_create("syzkaller", 0) = 3 [pid 4464] ftruncate(3, 0) = 0 [pid 4464] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4464] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4464] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4464] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4464] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4463] <... futex resumed>) = 0 [pid 4463] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4463] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4464] <... futex resumed>) = 1 [pid 4464] pipe2([5, 6], 0) = 0 [pid 4464] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4463] <... futex resumed>) = 0 [pid 4463] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4463] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4464] <... futex resumed>) = 1 [pid 4464] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4464] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4463] <... futex resumed>) = 0 [pid 4463] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4463] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4464] <... futex resumed>) = 1 [pid 4464] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4463] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4463] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4463] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4463] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4463] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4463] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4463] clone(child_stack=0x7fbc2b5fd2f0, 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 4465 attached , parent_tid=[4465], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4465 [pid 4463] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4463] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4465] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4465] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4465] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4464] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4465] <... futex resumed>) = 1 [pid 4464] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4463] <... futex resumed>) = 0 [pid 4465] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4464] <... futex resumed>) = 0 [pid 4463] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4464] read(5, [pid 4463] <... futex resumed>) = 0 [pid 4464] <... read resumed>NULL, 0) = 0 [pid 4463] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4464] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4463] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4464] <... futex resumed>) = 0 [pid 4463] exit_group(0 [pid 4465] <... futex resumed>) = ? [pid 4463] <... exit_group resumed>) = ? [pid 4464] +++ exited with 0 +++ [pid 4465] +++ exited with 0 +++ [pid 4463] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4463, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4466 ./strace-static-x86_64: Process 4466 attached [pid 4466] set_robust_list(0x555556e316e0, 24) = 0 [pid 4466] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4466] setpgid(0, 0) = 0 [pid 4466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4466] write(3, "1000", 4) = 4 [pid 4466] close(3) = 0 [pid 4466] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4466] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4466] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4466] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4467], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4467 ./strace-static-x86_64: Process 4467 attached [pid 4466] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4466] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4467] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4467] memfd_create("syzkaller", 0) = 3 [pid 4467] ftruncate(3, 0) = 0 [pid 4467] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4467] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4467] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4467] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4467] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4466] <... futex resumed>) = 0 [pid 4466] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4466] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4467] pipe2([5, 6], 0) = 0 [pid 4467] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4466] <... futex resumed>) = 0 [pid 4466] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4466] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4467] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4467] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4466] <... futex resumed>) = 0 [pid 4466] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4466] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4467] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4466] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4466] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4466] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4466] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4466] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4466] clone(child_stack=0x7fbc2b5fd2f0, 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 4468 attached , parent_tid=[4468], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4468 [pid 4466] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4466] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4468] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4468] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4468] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4468] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4467] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4467] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4467] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4466] <... futex resumed>) = 0 [pid 4466] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4467] <... futex resumed>) = 0 [pid 4466] <... futex resumed>) = 1 [pid 4466] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4467] read(5, NULL, 0) = 0 [pid 4467] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4466] <... futex resumed>) = 0 [pid 4467] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4466] exit_group(0 [pid 4468] <... futex resumed>) = ? [pid 4467] <... futex resumed>) = ? [pid 4466] <... exit_group resumed>) = ? [pid 4468] +++ exited with 0 +++ [pid 4467] +++ exited with 0 +++ [pid 4466] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4466, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4469 ./strace-static-x86_64: Process 4469 attached [pid 4469] set_robust_list(0x555556e316e0, 24) = 0 [pid 4469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4469] setpgid(0, 0) = 0 [pid 4469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4469] write(3, "1000", 4) = 4 [pid 4469] close(3) = 0 [pid 4469] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4469] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4469] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4469] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4470], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4470 [pid 4469] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4469] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4470 attached [pid 4470] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4470] memfd_create("syzkaller", 0) = 3 [pid 4470] ftruncate(3, 0) = 0 [pid 4470] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4470] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4470] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4470] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4470] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4469] <... futex resumed>) = 0 [pid 4469] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4469] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4470] <... futex resumed>) = 1 [pid 4470] pipe2([5, 6], 0) = 0 [pid 4470] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4469] <... futex resumed>) = 0 [pid 4469] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4469] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4470] <... futex resumed>) = 1 [pid 4470] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4470] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4469] <... futex resumed>) = 0 [pid 4469] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4469] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4470] <... futex resumed>) = 1 [pid 4470] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4469] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4469] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4469] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4469] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4469] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4471], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4471 ./strace-static-x86_64: Process 4471 attached [pid 4469] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4469] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4471] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4471] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4470] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4471] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4469] <... futex resumed>) = 0 [pid 4471] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4470] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4470] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4469] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4470] <... futex resumed>) = 0 [pid 4469] <... futex resumed>) = 1 [pid 4470] read(5, [pid 4469] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4470] <... read resumed>NULL, 0) = 0 [pid 4470] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4469] <... futex resumed>) = 0 [pid 4470] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4469] exit_group(0 [pid 4471] <... futex resumed>) = ? [pid 4470] <... futex resumed>) = ? [pid 4469] <... exit_group resumed>) = ? [pid 4471] +++ exited with 0 +++ [pid 4470] +++ exited with 0 +++ [pid 4469] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4469, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4472 ./strace-static-x86_64: Process 4472 attached [pid 4472] set_robust_list(0x555556e316e0, 24) = 0 [pid 4472] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4472] setpgid(0, 0) = 0 [pid 4472] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4472] write(3, "1000", 4) = 4 [pid 4472] close(3) = 0 [pid 4472] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4472] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4472] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4472] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4473], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4473 [pid 4472] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4472] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4473 attached [pid 4473] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4473] memfd_create("syzkaller", 0) = 3 [pid 4473] ftruncate(3, 0) = 0 [pid 4473] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4473] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4473] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4473] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4473] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4472] <... futex resumed>) = 0 [pid 4472] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4472] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4473] <... futex resumed>) = 1 [pid 4473] pipe2([5, 6], 0) = 0 [pid 4473] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4472] <... futex resumed>) = 0 [pid 4472] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4472] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4473] <... futex resumed>) = 1 [pid 4473] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4473] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4472] <... futex resumed>) = 0 [pid 4472] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4472] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4473] <... futex resumed>) = 1 [pid 4473] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4472] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4472] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4472] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4472] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4472] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4472] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4474], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4474 [pid 4472] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4472] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4474 attached [pid 4474] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4474] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4474] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4472] <... futex resumed>) = 0 [pid 4472] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4472] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4474] <... futex resumed>) = 1 [pid 4474] read(5, NULL, 0) = 0 [pid 4474] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4472] <... futex resumed>) = 0 [pid 4474] <... futex resumed>) = 1 [pid 4474] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4473] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4473] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4473] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4472] exit_group(0 [pid 4474] <... futex resumed>) = ? [pid 4473] <... futex resumed>) = ? [pid 4472] <... exit_group resumed>) = ? [pid 4473] +++ exited with 0 +++ [pid 4474] +++ exited with 0 +++ [pid 4472] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4472, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4475 attached , child_tidptr=0x555556e316d0) = 4475 [pid 4475] set_robust_list(0x555556e316e0, 24) = 0 [pid 4475] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4475] setpgid(0, 0) = 0 [pid 4475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4475] write(3, "1000", 4) = 4 [pid 4475] close(3) = 0 [pid 4475] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4475] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4475] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4475] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4476], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4476 [pid 4475] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4475] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4476 attached [pid 4476] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4476] memfd_create("syzkaller", 0) = 3 [pid 4476] ftruncate(3, 0) = 0 [pid 4476] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4476] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4476] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4476] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4476] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4475] <... futex resumed>) = 0 [pid 4475] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4475] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4476] <... futex resumed>) = 1 [pid 4476] pipe2([5, 6], 0) = 0 [pid 4476] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4475] <... futex resumed>) = 0 [pid 4475] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4475] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4476] <... futex resumed>) = 1 [pid 4476] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4476] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4475] <... futex resumed>) = 0 [pid 4475] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4475] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4476] <... futex resumed>) = 1 [pid 4476] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4475] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4475] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4475] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4475] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4475] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4475] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4477], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4477 [pid 4475] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4475] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4477 attached [pid 4477] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4477] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4477] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4475] <... futex resumed>) = 0 [pid 4475] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4475] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4477] <... futex resumed>) = 1 [pid 4477] read(5, NULL, 0) = 0 [pid 4477] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4475] <... futex resumed>) = 0 [pid 4477] <... futex resumed>) = 1 [pid 4477] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4476] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4476] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4476] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4475] exit_group(0 [pid 4476] <... futex resumed>) = ? [pid 4475] <... exit_group resumed>) = ? [pid 4477] <... futex resumed>) = ? [pid 4477] +++ exited with 0 +++ [pid 4476] +++ exited with 0 +++ [pid 4475] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4475, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4478 ./strace-static-x86_64: Process 4478 attached [pid 4478] set_robust_list(0x555556e316e0, 24) = 0 [pid 4478] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4478] setpgid(0, 0) = 0 [pid 4478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4478] write(3, "1000", 4) = 4 [pid 4478] close(3) = 0 [pid 4478] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4478] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4478] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4478] clone(child_stack=0x7fbc2b61e2f0, 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 4479 attached , parent_tid=[4479], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4479 [pid 4478] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4478] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4479] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4479] memfd_create("syzkaller", 0) = 3 [pid 4479] ftruncate(3, 0) = 0 [pid 4479] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4479] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4479] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4479] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4479] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4479] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4478] <... futex resumed>) = 0 [pid 4478] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4478] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4479] <... futex resumed>) = 0 [pid 4479] pipe2([5, 6], 0) = 0 [pid 4479] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4478] <... futex resumed>) = 0 [pid 4478] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4478] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4479] <... futex resumed>) = 1 [pid 4479] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4479] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4478] <... futex resumed>) = 0 [pid 4478] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4478] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4479] <... futex resumed>) = 1 [pid 4479] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4478] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4478] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4478] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4478] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4478] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4478] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4478] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4478] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4480], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4480 [pid 4478] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4478] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4480 attached [pid 4480] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4480] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4479] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4479] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4479] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4480] <... write resumed>) = 8 [pid 4480] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4478] <... futex resumed>) = 0 [pid 4478] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4479] <... futex resumed>) = 0 [pid 4478] <... futex resumed>) = 1 [pid 4479] read(5, [pid 4478] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4479] <... read resumed>NULL, 0) = 0 [pid 4479] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4478] <... futex resumed>) = 0 [pid 4479] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4478] exit_group(0 [pid 4479] <... futex resumed>) = ? [pid 4478] <... exit_group resumed>) = ? [pid 4479] +++ exited with 0 +++ [pid 4480] <... futex resumed>) = ? [pid 4480] +++ exited with 0 +++ [pid 4478] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4478, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4481 attached , child_tidptr=0x555556e316d0) = 4481 [pid 4481] set_robust_list(0x555556e316e0, 24) = 0 [pid 4481] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4481] setpgid(0, 0) = 0 [pid 4481] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4481] write(3, "1000", 4) = 4 [pid 4481] close(3) = 0 [pid 4481] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4481] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4481] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4481] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4482], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4482 [pid 4481] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4481] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4482 attached [pid 4482] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4482] memfd_create("syzkaller", 0) = 3 [pid 4482] ftruncate(3, 0) = 0 [pid 4482] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4482] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4482] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4482] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4482] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4481] <... futex resumed>) = 0 [pid 4481] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4481] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4482] <... futex resumed>) = 1 [pid 4482] pipe2([5, 6], 0) = 0 [pid 4482] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4481] <... futex resumed>) = 0 [pid 4481] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4481] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4482] <... futex resumed>) = 1 [pid 4482] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4482] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4481] <... futex resumed>) = 0 [pid 4481] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4482] <... futex resumed>) = 1 [pid 4481] <... futex resumed>) = 0 [pid 4481] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4482] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4481] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4481] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4481] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4481] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4481] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4481] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4483], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4483 [pid 4481] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4481] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4483 attached [pid 4483] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4483] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4483] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4481] <... futex resumed>) = 0 [pid 4481] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4481] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4483] <... futex resumed>) = 1 [pid 4483] read(5, NULL, 0) = 0 [pid 4483] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4481] <... futex resumed>) = 0 [pid 4483] <... futex resumed>) = 1 [pid 4483] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4482] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4482] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4482] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4481] exit_group(0 [pid 4482] <... futex resumed>) = ? [pid 4481] <... exit_group resumed>) = ? [pid 4483] <... futex resumed>) = ? [pid 4483] +++ exited with 0 +++ [pid 4482] +++ exited with 0 +++ [pid 4481] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4481, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4484 attached , child_tidptr=0x555556e316d0) = 4484 [pid 4484] set_robust_list(0x555556e316e0, 24) = 0 [pid 4484] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4484] setpgid(0, 0) = 0 [pid 4484] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4484] write(3, "1000", 4) = 4 [pid 4484] close(3) = 0 [pid 4484] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4484] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4484] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4484] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4485], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4485 [pid 4484] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4484] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4485 attached [pid 4485] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4485] memfd_create("syzkaller", 0) = 3 [pid 4485] ftruncate(3, 0) = 0 [pid 4485] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4485] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4485] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4485] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4485] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4484] <... futex resumed>) = 0 [pid 4484] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4484] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4485] <... futex resumed>) = 1 [pid 4485] pipe2([5, 6], 0) = 0 [pid 4485] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4484] <... futex resumed>) = 0 [pid 4484] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4484] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4485] <... futex resumed>) = 1 [pid 4485] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4485] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4484] <... futex resumed>) = 0 [pid 4484] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4484] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4485] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4484] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4484] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4484] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4484] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4484] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4484] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4484] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4486], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4486 [pid 4484] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4484] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4486 attached [pid 4486] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4486] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4486] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4485] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4486] <... futex resumed>) = 1 [pid 4485] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4484] <... futex resumed>) = 0 [pid 4486] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4485] <... futex resumed>) = 0 [pid 4484] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4485] read(5, [pid 4484] <... futex resumed>) = 0 [pid 4484] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4485] <... read resumed>NULL, 0) = 0 [pid 4485] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4484] <... futex resumed>) = 0 [pid 4484] exit_group(0) = ? [pid 4485] <... futex resumed>) = ? [pid 4486] <... futex resumed>) = ? [pid 4485] +++ exited with 0 +++ [pid 4486] +++ exited with 0 +++ [pid 4484] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4484, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4487 ./strace-static-x86_64: Process 4487 attached [pid 4487] set_robust_list(0x555556e316e0, 24) = 0 [pid 4487] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4487] setpgid(0, 0) = 0 [pid 4487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4487] write(3, "1000", 4) = 4 [pid 4487] close(3) = 0 [pid 4487] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4487] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4487] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4487] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4488], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4488 [pid 4487] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4487] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4488 attached [pid 4488] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4488] memfd_create("syzkaller", 0) = 3 [pid 4488] ftruncate(3, 0) = 0 [pid 4488] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4488] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4488] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4488] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4488] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4487] <... futex resumed>) = 0 [pid 4487] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4488] pipe2( [pid 4487] <... futex resumed>) = 0 [pid 4487] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4488] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4488] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4487] <... futex resumed>) = 0 [pid 4488] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4487] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4488] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4487] <... futex resumed>) = 0 [pid 4488] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4487] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4488] <... write resumed>) = 64568 [pid 4488] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4487] <... futex resumed>) = 0 [pid 4488] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4487] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4488] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4487] <... futex resumed>) = 0 [pid 4488] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4487] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4487] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4487] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4487] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4487] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4487] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4489], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4489 [pid 4487] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4487] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4489 attached [pid 4489] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4489] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4489] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4487] <... futex resumed>) = 0 [pid 4487] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4487] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4489] <... futex resumed>) = 1 [pid 4489] read(5, NULL, 0) = 0 [pid 4489] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4487] <... futex resumed>) = 0 [pid 4489] <... futex resumed>) = 1 [pid 4489] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4488] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4488] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4488] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4487] exit_group(0) = ? [pid 4488] <... futex resumed>) = ? [pid 4488] +++ exited with 0 +++ [pid 4489] <... futex resumed>) = ? [pid 4489] +++ exited with 0 +++ [pid 4487] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4487, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4490 ./strace-static-x86_64: Process 4490 attached [pid 4490] set_robust_list(0x555556e316e0, 24) = 0 [pid 4490] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4490] setpgid(0, 0) = 0 [pid 4490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4490] write(3, "1000", 4) = 4 [pid 4490] close(3) = 0 [pid 4490] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4490] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4490] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4490] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4491], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4491 [pid 4490] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4490] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4491 attached [pid 4491] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4491] memfd_create("syzkaller", 0) = 3 [pid 4491] ftruncate(3, 0) = 0 [pid 4491] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4491] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4491] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4491] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4491] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4490] <... futex resumed>) = 0 [pid 4490] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4491] pipe2( [pid 4490] <... futex resumed>) = 0 [pid 4490] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4491] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4491] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4490] <... futex resumed>) = 0 [pid 4490] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4491] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4490] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4491] <... write resumed>) = 64568 [pid 4491] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4490] <... futex resumed>) = 0 [pid 4490] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4491] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4490] <... futex resumed>) = 0 [pid 4490] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4490] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4490] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4490] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4490] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4492], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4492 ./strace-static-x86_64: Process 4492 attached [pid 4490] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4490] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4492] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4492] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4492] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4491] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4490] <... futex resumed>) = 0 [pid 4492] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4491] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4490] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4491] <... futex resumed>) = 0 [pid 4490] <... futex resumed>) = 0 [pid 4491] read(5, [pid 4490] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4491] <... read resumed>NULL, 0) = 0 [pid 4491] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4490] <... futex resumed>) = 0 [pid 4491] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4490] exit_group(0 [pid 4492] <... futex resumed>) = ? [pid 4491] <... futex resumed>) = ? [pid 4490] <... exit_group resumed>) = ? [pid 4492] +++ exited with 0 +++ [pid 4491] +++ exited with 0 +++ [pid 4490] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4490, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4493 attached , child_tidptr=0x555556e316d0) = 4493 [pid 4493] set_robust_list(0x555556e316e0, 24) = 0 [pid 4493] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4493] setpgid(0, 0) = 0 [pid 4493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4493] write(3, "1000", 4) = 4 [pid 4493] close(3) = 0 [pid 4493] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4493] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4493] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4493] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4494], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4494 [pid 4493] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4493] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4494 attached [pid 4494] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4494] memfd_create("syzkaller", 0) = 3 [pid 4494] ftruncate(3, 0) = 0 [pid 4494] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4494] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4494] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4494] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4494] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4493] <... futex resumed>) = 0 [pid 4493] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4493] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4494] <... futex resumed>) = 1 [pid 4494] pipe2([5, 6], 0) = 0 [pid 4494] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4493] <... futex resumed>) = 0 [pid 4493] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4493] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4494] <... futex resumed>) = 1 [pid 4494] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4494] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4493] <... futex resumed>) = 0 [pid 4493] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4493] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4494] <... futex resumed>) = 1 [pid 4494] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4493] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4493] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4493] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4493] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4493] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4495], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4495 [pid 4493] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4493] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4495 attached [pid 4495] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4495] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4494] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4495] <... write resumed>) = 8 [pid 4494] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4494] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4495] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4493] <... futex resumed>) = 0 [pid 4493] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4494] <... futex resumed>) = 0 [pid 4493] <... futex resumed>) = 1 [pid 4494] read(5, [pid 4493] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4494] <... read resumed>NULL, 0) = 0 [pid 4494] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4493] <... futex resumed>) = 0 [pid 4494] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4493] exit_group(0 [pid 4494] <... futex resumed>) = ? [pid 4493] <... exit_group resumed>) = ? [pid 4494] +++ exited with 0 +++ [pid 4495] <... futex resumed>) = ? [pid 4495] +++ exited with 0 +++ [pid 4493] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4493, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4496 ./strace-static-x86_64: Process 4496 attached [pid 4496] set_robust_list(0x555556e316e0, 24) = 0 [pid 4496] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4496] setpgid(0, 0) = 0 [pid 4496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4496] write(3, "1000", 4) = 4 [pid 4496] close(3) = 0 [pid 4496] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4496] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4496] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4496] clone(child_stack=0x7fbc2b61e2f0, 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 4497 attached [pid 4497] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4497] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4496] <... clone resumed>, parent_tid=[4497], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4497 [pid 4496] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4497] <... futex resumed>) = 0 [pid 4497] memfd_create("syzkaller", 0 [pid 4496] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4497] <... memfd_create resumed>) = 3 [pid 4497] ftruncate(3, 0) = 0 [pid 4497] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4497] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4497] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4497] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4497] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4496] <... futex resumed>) = 0 [pid 4496] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4496] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4497] pipe2([5, 6], 0) = 0 [pid 4497] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4496] <... futex resumed>) = 0 [pid 4496] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4496] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4497] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4497] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4496] <... futex resumed>) = 0 [pid 4496] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4496] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4497] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4496] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4496] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4496] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4496] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4496] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4496] clone(child_stack=0x7fbc2b5fd2f0, 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 4498 attached [pid 4498] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4496] <... clone resumed>, parent_tid=[4498], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4498 [pid 4498] <... set_robust_list resumed>) = 0 [pid 4496] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4498] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4496] <... futex resumed>) = 0 [pid 4496] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4498] <... write resumed>) = 8 [pid 4497] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4498] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4497] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4498] <... futex resumed>) = 1 [pid 4497] <... futex resumed>) = 0 [pid 4496] <... futex resumed>) = 0 [pid 4498] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4496] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4496] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4497] read(5, NULL, 0) = 0 [pid 4497] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4496] <... futex resumed>) = 0 [pid 4497] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4496] exit_group(0 [pid 4498] <... futex resumed>) = ? [pid 4497] <... futex resumed>) = ? [pid 4496] <... exit_group resumed>) = ? [pid 4498] +++ exited with 0 +++ [pid 4497] +++ exited with 0 +++ [pid 4496] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4496, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4499 ./strace-static-x86_64: Process 4499 attached [pid 4499] set_robust_list(0x555556e316e0, 24) = 0 [pid 4499] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4499] setpgid(0, 0) = 0 [pid 4499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4499] write(3, "1000", 4) = 4 [pid 4499] close(3) = 0 [pid 4499] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4499] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4499] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4499] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4500], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4500 [pid 4499] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4499] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4500 attached [pid 4500] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4500] memfd_create("syzkaller", 0) = 3 [pid 4500] ftruncate(3, 0) = 0 [pid 4500] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4500] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4500] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4500] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4500] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4499] <... futex resumed>) = 0 [pid 4499] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4499] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4500] <... futex resumed>) = 1 [pid 4500] pipe2([5, 6], 0) = 0 [pid 4500] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4499] <... futex resumed>) = 0 [pid 4499] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4499] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4500] <... futex resumed>) = 1 [pid 4500] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4500] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4499] <... futex resumed>) = 0 [pid 4499] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4499] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4500] <... futex resumed>) = 1 [pid 4500] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4499] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4499] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4499] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4499] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4499] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4499] clone(child_stack=0x7fbc2b5fd2f0, 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 4501 attached [pid 4501] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4501] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4499] <... clone resumed>, parent_tid=[4501], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4501 [pid 4499] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4499] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4501] <... futex resumed>) = 0 [pid 4501] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4501] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4499] <... futex resumed>) = 0 [pid 4499] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4499] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4501] <... futex resumed>) = 1 [pid 4501] read(5, NULL, 0) = 0 [pid 4501] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4499] <... futex resumed>) = 0 [pid 4501] <... futex resumed>) = 1 [pid 4501] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4500] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4500] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4500] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4499] exit_group(0) = ? [pid 4501] <... futex resumed>) = ? [pid 4500] <... futex resumed>) = ? [pid 4501] +++ exited with 0 +++ [pid 4500] +++ exited with 0 +++ [pid 4499] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4499, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4502 ./strace-static-x86_64: Process 4502 attached [pid 4502] set_robust_list(0x555556e316e0, 24) = 0 [pid 4502] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4502] setpgid(0, 0) = 0 [pid 4502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4502] write(3, "1000", 4) = 4 [pid 4502] close(3) = 0 [pid 4502] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4502] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4502] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4502] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4503], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4503 [pid 4502] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4502] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4503 attached [pid 4503] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4503] memfd_create("syzkaller", 0) = 3 [pid 4503] ftruncate(3, 0) = 0 [pid 4503] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4503] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4503] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4503] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4503] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4502] <... futex resumed>) = 0 [pid 4502] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4502] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4503] <... futex resumed>) = 1 [pid 4503] pipe2([5, 6], 0) = 0 [pid 4503] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4502] <... futex resumed>) = 0 [pid 4502] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4502] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4503] <... futex resumed>) = 1 [pid 4503] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4503] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4502] <... futex resumed>) = 0 [pid 4502] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4502] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4503] <... futex resumed>) = 1 [pid 4503] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4502] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4502] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4502] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4502] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4502] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4504], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4504 [pid 4502] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4502] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4504 attached [pid 4504] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4504] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4503] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4503] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4503] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4504] <... write resumed>) = 8 [pid 4504] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4502] <... futex resumed>) = 0 [pid 4502] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4503] <... futex resumed>) = 0 [pid 4502] <... futex resumed>) = 1 [pid 4503] read(5, [pid 4502] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4503] <... read resumed>NULL, 0) = 0 [pid 4503] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4502] <... futex resumed>) = 0 [pid 4503] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4502] exit_group(0 [pid 4503] <... futex resumed>) = ? [pid 4502] <... exit_group resumed>) = ? [pid 4503] +++ exited with 0 +++ [pid 4504] <... futex resumed>) = ? [pid 4504] +++ exited with 0 +++ [pid 4502] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4502, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4505 ./strace-static-x86_64: Process 4505 attached [pid 4505] set_robust_list(0x555556e316e0, 24) = 0 [pid 4505] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4505] setpgid(0, 0) = 0 [pid 4505] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4505] write(3, "1000", 4) = 4 [pid 4505] close(3) = 0 [pid 4505] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4505] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4505] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4505] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4506], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4506 [pid 4505] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4505] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4506 attached [pid 4506] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4506] memfd_create("syzkaller", 0) = 3 [pid 4506] ftruncate(3, 0) = 0 [pid 4506] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4506] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4506] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4506] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4506] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4505] <... futex resumed>) = 0 [pid 4505] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4505] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4506] <... futex resumed>) = 1 [pid 4506] pipe2([5, 6], 0) = 0 [pid 4506] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4505] <... futex resumed>) = 0 [pid 4506] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 4505] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4506] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4505] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4506] <... write resumed>) = 64568 [pid 4506] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4505] <... futex resumed>) = 0 [pid 4505] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4506] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4505] <... futex resumed>) = 0 [pid 4505] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4505] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4505] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4505] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4505] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4505] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4505] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4507], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4507 [pid 4505] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4505] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4507 attached [pid 4507] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4507] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4507] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4505] <... futex resumed>) = 0 [pid 4505] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4505] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4507] <... futex resumed>) = 1 [pid 4507] read(5, NULL, 0) = 0 [pid 4507] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4505] <... futex resumed>) = 0 [pid 4507] <... futex resumed>) = 1 [pid 4507] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4506] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4506] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4506] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4505] exit_group(0 [pid 4507] <... futex resumed>) = ? [pid 4505] <... exit_group resumed>) = ? [pid 4506] <... futex resumed>) = ? [pid 4507] +++ exited with 0 +++ [pid 4506] +++ exited with 0 +++ [pid 4505] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4505, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4508 ./strace-static-x86_64: Process 4508 attached [pid 4508] set_robust_list(0x555556e316e0, 24) = 0 [pid 4508] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4508] setpgid(0, 0) = 0 [pid 4508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4508] write(3, "1000", 4) = 4 [pid 4508] close(3) = 0 [pid 4508] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4508] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4508] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4508] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4509], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4509 [pid 4508] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4508] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4509 attached [pid 4509] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4509] memfd_create("syzkaller", 0) = 3 [pid 4509] ftruncate(3, 0) = 0 [pid 4509] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4509] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4509] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4509] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4509] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4508] <... futex resumed>) = 0 [pid 4508] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4508] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4509] <... futex resumed>) = 1 [pid 4509] pipe2([5, 6], 0) = 0 [pid 4509] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4508] <... futex resumed>) = 0 [pid 4508] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4508] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4509] <... futex resumed>) = 1 [pid 4509] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4509] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4508] <... futex resumed>) = 0 [pid 4508] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4508] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4509] <... futex resumed>) = 1 [pid 4509] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4508] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4508] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4508] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4508] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4508] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4508] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4508] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4510], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4510 [pid 4508] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4508] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4510 attached [pid 4510] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4510] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4510] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4508] <... futex resumed>) = 0 [pid 4508] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4508] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4509] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4510] <... futex resumed>) = 1 [pid 4509] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4510] read(5, [pid 4509] <... futex resumed>) = 0 [pid 4510] <... read resumed>NULL, 0) = 0 [pid 4509] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4510] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4508] <... futex resumed>) = 0 [pid 4508] exit_group(0) = ? [pid 4509] <... futex resumed>) = ? [pid 4510] <... futex resumed>) = ? [pid 4509] +++ exited with 0 +++ [pid 4510] +++ exited with 0 +++ [pid 4508] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4508, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4511 ./strace-static-x86_64: Process 4511 attached [pid 4511] set_robust_list(0x555556e316e0, 24) = 0 [pid 4511] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4511] setpgid(0, 0) = 0 [pid 4511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4511] write(3, "1000", 4) = 4 [pid 4511] close(3) = 0 [pid 4511] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4511] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4511] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4511] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4512], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4512 [pid 4511] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4511] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4512 attached [pid 4512] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4512] memfd_create("syzkaller", 0) = 3 [pid 4512] ftruncate(3, 0) = 0 [pid 4512] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4512] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4512] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4512] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4512] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4511] <... futex resumed>) = 0 [pid 4511] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4511] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4512] <... futex resumed>) = 1 [pid 4512] pipe2([5, 6], 0) = 0 [pid 4512] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4511] <... futex resumed>) = 0 [pid 4511] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4511] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4512] <... futex resumed>) = 1 [pid 4512] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4512] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4511] <... futex resumed>) = 0 [pid 4511] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4511] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4512] <... futex resumed>) = 1 [pid 4512] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4511] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4511] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4511] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4511] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4511] clone(child_stack=0x7fbc2b5fd2f0, 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 4513 attached , parent_tid=[4513], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4513 [pid 4511] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4511] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4513] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4513] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4513] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4512] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4513] <... futex resumed>) = 1 [pid 4512] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4513] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4512] <... futex resumed>) = 0 [pid 4511] <... futex resumed>) = 0 [pid 4512] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 4511] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4512] read(5, NULL, 0) = 0 [pid 4512] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4511] <... futex resumed>) = 0 [pid 4512] <... futex resumed>) = 0 [pid 4512] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4511] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4511] exit_group(0 [pid 4513] <... futex resumed>) = ? [pid 4512] <... futex resumed>) = ? [pid 4511] <... exit_group resumed>) = ? [pid 4513] +++ exited with 0 +++ [pid 4512] +++ exited with 0 +++ [pid 4511] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4511, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4514 ./strace-static-x86_64: Process 4514 attached [pid 4514] set_robust_list(0x555556e316e0, 24) = 0 [pid 4514] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4514] setpgid(0, 0) = 0 [pid 4514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4514] write(3, "1000", 4) = 4 [pid 4514] close(3) = 0 [pid 4514] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4514] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4514] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4514] clone(child_stack=0x7fbc2b61e2f0, 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 4515 attached , parent_tid=[4515], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4515 [pid 4515] set_robust_list(0x7fbc2b61e9e0, 24 [pid 4514] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4515] <... set_robust_list resumed>) = 0 [pid 4514] <... futex resumed>) = 0 [pid 4514] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4515] memfd_create("syzkaller", 0) = 3 [pid 4515] ftruncate(3, 0) = 0 [pid 4515] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4515] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4515] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4515] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4515] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4514] <... futex resumed>) = 0 [pid 4515] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4514] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4515] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4514] <... futex resumed>) = 0 [pid 4515] pipe2( [pid 4514] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4515] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4515] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4514] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4515] <... futex resumed>) = 0 [pid 4514] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4515] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4514] <... futex resumed>) = 0 [pid 4515] <... write resumed>) = 64568 [pid 4514] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4515] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4514] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4515] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4514] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4515] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4514] <... futex resumed>) = 0 [pid 4515] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4514] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4514] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4514] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4514] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4514] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4514] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4514] clone(child_stack=0x7fbc2b5fd2f0, 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 4516 attached [pid 4516] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4516] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4514] <... clone resumed>, parent_tid=[4516], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4516 [pid 4514] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4514] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4516] <... futex resumed>) = 0 [pid 4516] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4515] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4515] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4515] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4516] <... write resumed>) = 8 [pid 4516] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4514] <... futex resumed>) = 0 [pid 4514] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4515] <... futex resumed>) = 0 [pid 4514] <... futex resumed>) = 1 [pid 4515] read(5, [pid 4514] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4515] <... read resumed>NULL, 0) = 0 [pid 4515] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4514] <... futex resumed>) = 0 [pid 4515] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4514] exit_group(0 [pid 4515] <... futex resumed>) = ? [pid 4514] <... exit_group resumed>) = ? [pid 4515] +++ exited with 0 +++ [pid 4516] <... futex resumed>) = ? [pid 4516] +++ exited with 0 +++ [pid 4514] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4514, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4517 ./strace-static-x86_64: Process 4517 attached [pid 4517] set_robust_list(0x555556e316e0, 24) = 0 [pid 4517] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4517] setpgid(0, 0) = 0 [pid 4517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4517] write(3, "1000", 4) = 4 [pid 4517] close(3) = 0 [pid 4517] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4517] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4517] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4517] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4518], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4518 [pid 4517] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4517] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4518 attached [pid 4518] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4518] memfd_create("syzkaller", 0) = 3 [pid 4518] ftruncate(3, 0) = 0 [pid 4518] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4518] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4518] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4518] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4518] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4517] <... futex resumed>) = 0 [pid 4517] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4517] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4518] <... futex resumed>) = 1 [pid 4518] pipe2([5, 6], 0) = 0 [pid 4518] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4517] <... futex resumed>) = 0 [pid 4517] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4517] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4518] <... futex resumed>) = 1 [pid 4518] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4518] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4517] <... futex resumed>) = 0 [pid 4517] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4517] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4518] <... futex resumed>) = 1 [pid 4518] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4517] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4517] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4517] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4517] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4517] clone(child_stack=0x7fbc2b5fd2f0, 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 4519 attached , parent_tid=[4519], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4519 [pid 4519] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4517] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4519] <... set_robust_list resumed>) = 0 [pid 4517] <... futex resumed>) = 0 [pid 4519] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4517] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4519] <... write resumed>) = 8 [pid 4519] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4518] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4519] <... futex resumed>) = 1 [pid 4518] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4517] <... futex resumed>) = 0 [pid 4518] <... futex resumed>) = 0 [pid 4519] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4518] read(5, [pid 4517] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4518] <... read resumed>NULL, 0) = 0 [pid 4518] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4517] <... futex resumed>) = 0 [pid 4518] <... futex resumed>) = 0 [pid 4518] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4517] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4517] exit_group(0 [pid 4519] <... futex resumed>) = ? [pid 4518] <... futex resumed>) = ? [pid 4517] <... exit_group resumed>) = ? [pid 4519] +++ exited with 0 +++ [pid 4518] +++ exited with 0 +++ [pid 4517] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4517, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4520 ./strace-static-x86_64: Process 4520 attached [pid 4520] set_robust_list(0x555556e316e0, 24) = 0 [pid 4520] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4520] setpgid(0, 0) = 0 [pid 4520] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4520] write(3, "1000", 4) = 4 [pid 4520] close(3) = 0 [pid 4520] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4520] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4520] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4520] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4521], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4521 [pid 4520] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4520] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4521 attached [pid 4521] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4521] memfd_create("syzkaller", 0) = 3 [pid 4521] ftruncate(3, 0) = 0 [pid 4521] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4521] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4521] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4521] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4521] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4521] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4520] <... futex resumed>) = 0 [pid 4520] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4520] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4521] <... futex resumed>) = 0 [pid 4521] pipe2([5, 6], 0) = 0 [pid 4521] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4520] <... futex resumed>) = 0 [pid 4520] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4520] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4521] <... futex resumed>) = 1 [pid 4521] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4521] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4520] <... futex resumed>) = 0 [pid 4520] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4520] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4521] <... futex resumed>) = 1 [pid 4521] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4520] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4520] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4520] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4520] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4520] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4522], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4522 [pid 4520] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4520] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4522 attached [pid 4522] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4522] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4521] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4522] <... write resumed>) = 8 [pid 4521] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4521] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4522] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4520] <... futex resumed>) = 0 [pid 4522] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4520] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4521] <... futex resumed>) = 0 [pid 4520] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4521] read(5, NULL, 0) = 0 [pid 4521] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4521] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4520] <... futex resumed>) = 0 [pid 4520] exit_group(0 [pid 4521] <... futex resumed>) = ? [pid 4522] <... futex resumed>) = ? [pid 4520] <... exit_group resumed>) = ? [pid 4521] +++ exited with 0 +++ [pid 4522] +++ exited with 0 +++ [pid 4520] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4520, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4523 ./strace-static-x86_64: Process 4523 attached [pid 4523] set_robust_list(0x555556e316e0, 24) = 0 [pid 4523] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4523] setpgid(0, 0) = 0 [pid 4523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4523] write(3, "1000", 4) = 4 [pid 4523] close(3) = 0 [pid 4523] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4523] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4523] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4523] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4524], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4524 [pid 4523] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4523] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4524 attached [pid 4524] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4524] memfd_create("syzkaller", 0) = 3 [pid 4524] ftruncate(3, 0) = 0 [pid 4524] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4524] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4524] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4524] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4524] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4523] <... futex resumed>) = 0 [pid 4524] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4523] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4523] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4524] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4524] pipe2([5, 6], 0) = 0 [pid 4524] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4523] <... futex resumed>) = 0 [pid 4524] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4523] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4524] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4523] <... futex resumed>) = 0 [pid 4524] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4523] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4524] <... write resumed>) = 64568 [pid 4524] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4523] <... futex resumed>) = 0 [pid 4524] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4523] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4524] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4523] <... futex resumed>) = 0 [pid 4524] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4523] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4523] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4523] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4523] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4523] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4523] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4523] clone(child_stack=0x7fbc2b5fd2f0, 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 4525 attached [pid 4525] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4523] <... clone resumed>, parent_tid=[4525], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4525 [pid 4525] <... set_robust_list resumed>) = 0 [pid 4523] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4525] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4523] <... futex resumed>) = 0 [pid 4525] <... write resumed>) = 8 [pid 4523] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4524] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4525] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4524] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4525] <... futex resumed>) = 1 [pid 4524] <... futex resumed>) = 0 [pid 4523] <... futex resumed>) = 0 [pid 4525] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4524] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4523] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4524] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4523] <... futex resumed>) = 0 [pid 4524] read(5, [pid 4523] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4524] <... read resumed>NULL, 0) = 0 [pid 4524] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4523] <... futex resumed>) = 0 [pid 4524] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4523] exit_group(0 [pid 4524] <... futex resumed>) = ? [pid 4523] <... exit_group resumed>) = ? [pid 4524] +++ exited with 0 +++ [pid 4525] <... futex resumed>) = ? [pid 4525] +++ exited with 0 +++ [pid 4523] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4523, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4526 ./strace-static-x86_64: Process 4526 attached [pid 4526] set_robust_list(0x555556e316e0, 24) = 0 [pid 4526] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4526] setpgid(0, 0) = 0 [pid 4526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4526] write(3, "1000", 4) = 4 [pid 4526] close(3) = 0 [pid 4526] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4526] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4526] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4526] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4527], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4527 [pid 4526] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4526] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4527 attached [pid 4527] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4527] memfd_create("syzkaller", 0) = 3 [pid 4527] ftruncate(3, 0) = 0 [pid 4527] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4527] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4527] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4527] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4527] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4526] <... futex resumed>) = 0 [pid 4527] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4526] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4527] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4526] <... futex resumed>) = 0 [pid 4527] pipe2( [pid 4526] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4527] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4527] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4526] <... futex resumed>) = 0 [pid 4527] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4526] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4527] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4526] <... futex resumed>) = 0 [pid 4527] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4526] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4527] <... write resumed>) = 64568 [pid 4527] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4526] <... futex resumed>) = 0 [pid 4527] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4526] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4527] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4526] <... futex resumed>) = 0 [pid 4527] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4526] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4526] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4526] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4526] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4526] clone(child_stack=0x7fbc2b5fd2f0, 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 4528 attached , parent_tid=[4528], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4528 [pid 4528] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4526] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4528] <... set_robust_list resumed>) = 0 [pid 4526] <... futex resumed>) = 0 [pid 4528] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4526] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4528] <... write resumed>) = 8 [pid 4527] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4528] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4527] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4528] <... futex resumed>) = 1 [pid 4526] <... futex resumed>) = 0 [pid 4527] <... futex resumed>) = 0 [pid 4528] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4526] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4527] read(5, [pid 4526] <... futex resumed>) = 0 [pid 4527] <... read resumed>NULL, 0) = 0 [pid 4526] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4527] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4526] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4527] <... futex resumed>) = 0 [pid 4526] exit_group(0 [pid 4528] <... futex resumed>) = ? [pid 4526] <... exit_group resumed>) = ? [pid 4527] +++ exited with 0 +++ [pid 4528] +++ exited with 0 +++ [pid 4526] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4526, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4529 attached , child_tidptr=0x555556e316d0) = 4529 [pid 4529] set_robust_list(0x555556e316e0, 24) = 0 [pid 4529] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4529] setpgid(0, 0) = 0 [pid 4529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4529] write(3, "1000", 4) = 4 [pid 4529] close(3) = 0 [pid 4529] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4529] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4529] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4529] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4530], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4530 [pid 4529] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4529] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4530 attached [pid 4530] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4530] memfd_create("syzkaller", 0) = 3 [pid 4530] ftruncate(3, 0) = 0 [pid 4530] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4530] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4530] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4530] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4530] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4529] <... futex resumed>) = 0 [pid 4529] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4529] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4530] <... futex resumed>) = 1 [pid 4530] pipe2([5, 6], 0) = 0 [pid 4530] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4529] <... futex resumed>) = 0 [pid 4529] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4529] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4530] <... futex resumed>) = 1 [pid 4530] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4530] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4529] <... futex resumed>) = 0 [pid 4529] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4529] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4530] <... futex resumed>) = 1 [pid 4530] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4529] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4529] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4529] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4529] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4529] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4531], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4531 ./strace-static-x86_64: Process 4531 attached [pid 4529] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4529] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4531] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4531] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4530] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4531] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4529] <... futex resumed>) = 0 [pid 4531] read(5, [pid 4529] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4531] <... read resumed>NULL, 0) = 0 [pid 4529] <... futex resumed>) = 0 [pid 4531] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4529] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4531] <... futex resumed>) = 0 [pid 4529] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4531] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4530] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4530] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4529] exit_group(0 [pid 4531] <... futex resumed>) = ? [pid 4530] <... futex resumed>) = ? [pid 4529] <... exit_group resumed>) = ? [pid 4531] +++ exited with 0 +++ [pid 4530] +++ exited with 0 +++ [pid 4529] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4529, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4532 ./strace-static-x86_64: Process 4532 attached [pid 4532] set_robust_list(0x555556e316e0, 24) = 0 [pid 4532] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4532] setpgid(0, 0) = 0 [pid 4532] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4532] write(3, "1000", 4) = 4 [pid 4532] close(3) = 0 [pid 4532] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4532] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4532] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4532] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4533], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4533 [pid 4532] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4532] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4533 attached [pid 4533] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4533] memfd_create("syzkaller", 0) = 3 [pid 4533] ftruncate(3, 0) = 0 [pid 4533] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4533] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4533] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4533] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4533] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4532] <... futex resumed>) = 0 [pid 4532] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4532] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4533] <... futex resumed>) = 1 [pid 4533] pipe2([5, 6], 0) = 0 [pid 4533] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4532] <... futex resumed>) = 0 [pid 4532] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4533] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4532] <... futex resumed>) = 0 [pid 4532] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4533] <... write resumed>) = 64568 [pid 4533] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4532] <... futex resumed>) = 0 [pid 4532] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4532] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4533] <... futex resumed>) = 1 [pid 4533] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4532] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4532] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4532] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4532] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4532] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4532] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4534], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4534 [pid 4532] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4532] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4534 attached [pid 4534] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4534] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4534] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4532] <... futex resumed>) = 0 [pid 4532] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4532] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4534] <... futex resumed>) = 1 [pid 4534] read(5, NULL, 0) = 0 [pid 4533] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4534] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4532] <... futex resumed>) = 0 [pid 4534] <... futex resumed>) = 1 [pid 4534] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4533] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4533] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4532] exit_group(0 [pid 4533] <... futex resumed>) = ? [pid 4532] <... exit_group resumed>) = ? [pid 4534] <... futex resumed>) = ? [pid 4533] +++ exited with 0 +++ [pid 4534] +++ exited with 0 +++ [pid 4532] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4532, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4535 ./strace-static-x86_64: Process 4535 attached [pid 4535] set_robust_list(0x555556e316e0, 24) = 0 [pid 4535] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4535] setpgid(0, 0) = 0 [pid 4535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4535] write(3, "1000", 4) = 4 [pid 4535] close(3) = 0 [pid 4535] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4535] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4535] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4535] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4536], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4536 [pid 4535] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4535] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4536 attached [pid 4536] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4536] memfd_create("syzkaller", 0) = 3 [pid 4536] ftruncate(3, 0) = 0 [pid 4536] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4536] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4536] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4536] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4536] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4535] <... futex resumed>) = 0 [pid 4535] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4535] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4536] <... futex resumed>) = 1 [pid 4536] pipe2([5, 6], 0) = 0 [pid 4536] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4535] <... futex resumed>) = 0 [pid 4535] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4535] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4536] <... futex resumed>) = 1 [pid 4536] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4536] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4535] <... futex resumed>) = 0 [pid 4535] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4535] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4536] <... futex resumed>) = 1 [pid 4536] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4535] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4535] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4535] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4535] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4535] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4535] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4535] clone(child_stack=0x7fbc2b5fd2f0, 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 4537 attached , parent_tid=[4537], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4537 [pid 4537] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4535] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4537] <... set_robust_list resumed>) = 0 [pid 4535] <... futex resumed>) = 0 [pid 4537] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4535] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4537] <... write resumed>) = 8 [pid 4537] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4537] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4536] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4535] <... futex resumed>) = 0 [pid 4536] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4535] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4536] <... futex resumed>) = 0 [pid 4535] <... futex resumed>) = 0 [pid 4536] read(5, [pid 4535] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4536] <... read resumed>NULL, 0) = 0 [pid 4536] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4535] <... futex resumed>) = 0 [pid 4536] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4535] exit_group(0 [pid 4536] <... futex resumed>) = ? [pid 4535] <... exit_group resumed>) = ? [pid 4537] <... futex resumed>) = ? [pid 4536] +++ exited with 0 +++ [pid 4537] +++ exited with 0 +++ [pid 4535] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4535, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4538 ./strace-static-x86_64: Process 4538 attached [pid 4538] set_robust_list(0x555556e316e0, 24) = 0 [pid 4538] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4538] setpgid(0, 0) = 0 [pid 4538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4538] write(3, "1000", 4) = 4 [pid 4538] close(3) = 0 [pid 4538] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4538] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4538] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4538] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4539], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4539 [pid 4538] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4538] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4539 attached [pid 4539] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4539] memfd_create("syzkaller", 0) = 3 [pid 4539] ftruncate(3, 0) = 0 [pid 4539] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4539] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4539] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4539] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4539] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4538] <... futex resumed>) = 0 [pid 4538] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4538] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4539] <... futex resumed>) = 1 [pid 4539] pipe2([5, 6], 0) = 0 [pid 4539] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4538] <... futex resumed>) = 0 [pid 4538] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4538] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4539] <... futex resumed>) = 1 [pid 4539] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4539] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4538] <... futex resumed>) = 0 [pid 4538] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4538] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4539] <... futex resumed>) = 1 [pid 4539] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4538] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4538] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4538] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4538] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4538] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4540], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4540 ./strace-static-x86_64: Process 4540 attached [pid 4538] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4538] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4540] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4540] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4540] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4539] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4538] <... futex resumed>) = 0 [pid 4540] <... futex resumed>) = 1 [pid 4538] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4538] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4539] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4540] read(5, [pid 4539] <... futex resumed>) = 0 [pid 4539] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4540] <... read resumed>NULL, 0) = 0 [pid 4540] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4538] <... futex resumed>) = 0 [pid 4538] exit_group(0) = ? [pid 4539] <... futex resumed>) = ? [pid 4540] +++ exited with 0 +++ [pid 4539] +++ exited with 0 +++ [pid 4538] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4538, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4541 ./strace-static-x86_64: Process 4541 attached [pid 4541] set_robust_list(0x555556e316e0, 24) = 0 [pid 4541] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4541] setpgid(0, 0) = 0 [pid 4541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4541] write(3, "1000", 4) = 4 [pid 4541] close(3) = 0 [pid 4541] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4541] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4541] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4541] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4542], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4542 [pid 4541] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4541] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4542 attached [pid 4542] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4542] memfd_create("syzkaller", 0) = 3 [pid 4542] ftruncate(3, 0) = 0 [pid 4542] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4542] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4542] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4542] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4542] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4541] <... futex resumed>) = 0 [pid 4541] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4541] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4542] <... futex resumed>) = 1 [pid 4542] pipe2([5, 6], 0) = 0 [pid 4542] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4541] <... futex resumed>) = 0 [pid 4541] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4541] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4542] <... futex resumed>) = 1 [pid 4542] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4542] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4541] <... futex resumed>) = 0 [pid 4541] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4541] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4542] <... futex resumed>) = 1 [pid 4542] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4541] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4541] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4541] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4541] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4541] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4541] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4541] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4543], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4543 [pid 4541] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4541] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4543 attached [pid 4543] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4543] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4542] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4542] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4542] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4543] <... write resumed>) = 8 [pid 4543] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4541] <... futex resumed>) = 0 [pid 4541] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4542] <... futex resumed>) = 0 [pid 4541] <... futex resumed>) = 1 [pid 4542] read(5, [pid 4541] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4542] <... read resumed>NULL, 0) = 0 [pid 4542] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4541] <... futex resumed>) = 0 [pid 4542] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4541] exit_group(0 [pid 4542] <... futex resumed>) = ? [pid 4541] <... exit_group resumed>) = ? [pid 4542] +++ exited with 0 +++ [pid 4543] <... futex resumed>) = ? [pid 4543] +++ exited with 0 +++ [pid 4541] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4541, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4544 ./strace-static-x86_64: Process 4544 attached [pid 4544] set_robust_list(0x555556e316e0, 24) = 0 [pid 4544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4544] setpgid(0, 0) = 0 [pid 4544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4544] write(3, "1000", 4) = 4 [pid 4544] close(3) = 0 [pid 4544] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4544] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4544] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4544] clone(child_stack=0x7fbc2b61e2f0, 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 4545 attached , parent_tid=[4545], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4545 [pid 4544] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4544] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4545] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4545] memfd_create("syzkaller", 0) = 3 [pid 4545] ftruncate(3, 0) = 0 [pid 4545] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4545] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4545] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4545] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4545] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4544] <... futex resumed>) = 0 [pid 4544] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4544] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4545] <... futex resumed>) = 1 [pid 4545] pipe2([5, 6], 0) = 0 [pid 4545] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4544] <... futex resumed>) = 0 [pid 4544] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4544] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4545] <... futex resumed>) = 1 [pid 4545] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4545] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4544] <... futex resumed>) = 0 [pid 4544] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4544] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4545] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4544] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4544] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4544] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4544] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4544] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4544] clone(child_stack=0x7fbc2b5fd2f0, 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 4546 attached , parent_tid=[4546], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4546 [pid 4544] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4546] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4544] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4546] <... set_robust_list resumed>) = 0 [pid 4546] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4545] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4546] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4544] <... futex resumed>) = 0 [pid 4546] read(5, [pid 4544] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4546] <... read resumed>NULL, 0) = 0 [pid 4544] <... futex resumed>) = 0 [pid 4546] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4544] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4546] <... futex resumed>) = 0 [pid 4544] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4545] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4546] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4545] <... futex resumed>) = 0 [pid 4545] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4544] exit_group(0 [pid 4545] <... futex resumed>) = ? [pid 4544] <... exit_group resumed>) = ? [pid 4545] +++ exited with 0 +++ [pid 4546] <... futex resumed>) = ? [pid 4546] +++ exited with 0 +++ [pid 4544] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4544, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4547 attached , child_tidptr=0x555556e316d0) = 4547 [pid 4547] set_robust_list(0x555556e316e0, 24) = 0 [pid 4547] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4547] setpgid(0, 0) = 0 [pid 4547] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4547] write(3, "1000", 4) = 4 [pid 4547] close(3) = 0 [pid 4547] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4547] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4547] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4547] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4548], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4548 [pid 4547] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4547] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4548 attached [pid 4548] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4548] memfd_create("syzkaller", 0) = 3 [pid 4548] ftruncate(3, 0) = 0 [pid 4548] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4548] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4548] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4548] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4548] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4547] <... futex resumed>) = 0 [pid 4547] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4547] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4548] <... futex resumed>) = 1 [pid 4548] pipe2([5, 6], 0) = 0 [pid 4548] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4547] <... futex resumed>) = 0 [pid 4547] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4547] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4548] <... futex resumed>) = 1 [pid 4548] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4548] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4547] <... futex resumed>) = 0 [pid 4547] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4547] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4548] <... futex resumed>) = 1 [pid 4548] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4547] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4547] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4547] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4547] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4547] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4547] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4547] clone(child_stack=0x7fbc2b5fd2f0, 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 4549 attached , parent_tid=[4549], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4549 [pid 4549] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4547] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4549] <... set_robust_list resumed>) = 0 [pid 4547] <... futex resumed>) = 0 [pid 4549] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4547] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4549] <... write resumed>) = 8 [pid 4549] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4548] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4547] <... futex resumed>) = 0 [pid 4549] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4548] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4547] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4548] <... futex resumed>) = 0 [pid 4547] <... futex resumed>) = 0 [pid 4548] read(5, NULL, 0) = 0 [pid 4547] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4548] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4547] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4548] <... futex resumed>) = 0 [pid 4547] exit_group(0 [pid 4548] ????( [pid 4547] <... exit_group resumed>) = ? [pid 4548] <... ???? resumed>) = ? [pid 4549] <... futex resumed>) = ? [pid 4549] +++ exited with 0 +++ [pid 4548] +++ exited with 0 +++ [pid 4547] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4547, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4550 attached , child_tidptr=0x555556e316d0) = 4550 [pid 4550] set_robust_list(0x555556e316e0, 24) = 0 [pid 4550] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4550] setpgid(0, 0) = 0 [pid 4550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4550] write(3, "1000", 4) = 4 [pid 4550] close(3) = 0 [pid 4550] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4550] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4550] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4550] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4551], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4551 [pid 4550] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4550] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4551 attached [pid 4551] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4551] memfd_create("syzkaller", 0) = 3 [pid 4551] ftruncate(3, 0) = 0 [pid 4551] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4551] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4551] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4551] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4551] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4550] <... futex resumed>) = 0 [pid 4550] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4550] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4551] pipe2([5, 6], 0) = 0 [pid 4551] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4550] <... futex resumed>) = 0 [pid 4551] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4550] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4551] <... futex resumed>) = 0 [pid 4550] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4551] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4551] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4550] <... futex resumed>) = 0 [pid 4551] <... futex resumed>) = 1 [pid 4550] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4551] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4550] <... futex resumed>) = 0 [pid 4550] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4550] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4550] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4550] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4550] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4550] clone(child_stack=0x7fbc2b5fd2f0, 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 4552 attached , parent_tid=[4552], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4552 [pid 4552] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4550] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4552] <... set_robust_list resumed>) = 0 [pid 4550] <... futex resumed>) = 0 [pid 4552] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4550] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4552] <... write resumed>) = 8 [pid 4552] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4551] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4552] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4550] <... futex resumed>) = 0 [pid 4551] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4550] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4551] <... futex resumed>) = 0 [pid 4550] <... futex resumed>) = 0 [pid 4551] read(5, [pid 4550] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4551] <... read resumed>NULL, 0) = 0 [pid 4551] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4550] <... futex resumed>) = 0 [pid 4551] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4550] exit_group(0 [pid 4551] <... futex resumed>) = ? [pid 4550] <... exit_group resumed>) = ? [pid 4552] <... futex resumed>) = ? [pid 4551] +++ exited with 0 +++ [pid 4552] +++ exited with 0 +++ [pid 4550] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4550, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4553 ./strace-static-x86_64: Process 4553 attached [pid 4553] set_robust_list(0x555556e316e0, 24) = 0 [pid 4553] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4553] setpgid(0, 0) = 0 [pid 4553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4553] write(3, "1000", 4) = 4 [pid 4553] close(3) = 0 [pid 4553] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4553] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4553] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4553] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4554], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4554 [pid 4553] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4553] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4554 attached [pid 4554] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4554] memfd_create("syzkaller", 0) = 3 [pid 4554] ftruncate(3, 0) = 0 [pid 4554] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4554] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4554] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4554] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4554] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4553] <... futex resumed>) = 0 [pid 4553] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4553] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4554] <... futex resumed>) = 1 [pid 4554] pipe2([5, 6], 0) = 0 [pid 4554] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4553] <... futex resumed>) = 0 [pid 4553] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4553] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4554] <... futex resumed>) = 1 [pid 4554] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4554] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4553] <... futex resumed>) = 0 [pid 4553] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4553] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4554] <... futex resumed>) = 1 [pid 4554] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4553] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4553] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4553] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4553] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4553] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4553] clone(child_stack=0x7fbc2b5fd2f0, 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 4555 attached , parent_tid=[4555], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4555 [pid 4555] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4553] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4555] <... set_robust_list resumed>) = 0 [pid 4553] <... futex resumed>) = 0 [pid 4555] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4553] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4555] <... write resumed>) = 8 [pid 4554] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4554] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4554] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4555] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4553] <... futex resumed>) = 0 [pid 4555] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4553] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4554] <... futex resumed>) = 0 [pid 4553] <... futex resumed>) = 1 [pid 4554] read(5, [pid 4553] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4554] <... read resumed>NULL, 0) = 0 [pid 4554] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4553] <... futex resumed>) = 0 [pid 4554] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4553] exit_group(0 [pid 4555] <... futex resumed>) = ? [pid 4554] <... futex resumed>) = ? [pid 4553] <... exit_group resumed>) = ? [pid 4555] +++ exited with 0 +++ [pid 4554] +++ exited with 0 +++ [pid 4553] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4553, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4556 ./strace-static-x86_64: Process 4556 attached [pid 4556] set_robust_list(0x555556e316e0, 24) = 0 [pid 4556] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4556] setpgid(0, 0) = 0 [pid 4556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4556] write(3, "1000", 4) = 4 [pid 4556] close(3) = 0 [pid 4556] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4556] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4556] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4556] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4557], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4557 [pid 4556] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 4557 attached [pid 4556] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4557] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4557] memfd_create("syzkaller", 0) = 3 [pid 4557] ftruncate(3, 0) = 0 [pid 4557] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4557] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4557] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4557] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4557] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4556] <... futex resumed>) = 0 [pid 4556] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4556] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4557] pipe2([5, 6], 0) = 0 [pid 4557] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4556] <... futex resumed>) = 0 [pid 4556] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4556] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4557] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4557] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4556] <... futex resumed>) = 0 [pid 4556] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4556] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4557] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4556] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4556] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4556] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4556] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4556] clone(child_stack=0x7fbc2b5fd2f0, 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 4558 attached , parent_tid=[4558], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4558 [pid 4558] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4556] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4558] <... set_robust_list resumed>) = 0 [pid 4556] <... futex resumed>) = 0 [pid 4558] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4557] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4556] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4558] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4556] <... futex resumed>) = 0 [pid 4558] read(5, [pid 4556] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4558] <... read resumed>NULL, 0) = 0 [pid 4556] <... futex resumed>) = 0 [pid 4558] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4557] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4556] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4558] <... futex resumed>) = 0 [pid 4557] <... futex resumed>) = 0 [pid 4556] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4558] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4557] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4556] exit_group(0 [pid 4558] <... futex resumed>) = ? [pid 4557] <... futex resumed>) = ? [pid 4556] <... exit_group resumed>) = ? [pid 4557] +++ exited with 0 +++ [pid 4558] +++ exited with 0 +++ [pid 4556] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4556, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4559 ./strace-static-x86_64: Process 4559 attached [pid 4559] set_robust_list(0x555556e316e0, 24) = 0 [pid 4559] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4559] setpgid(0, 0) = 0 [pid 4559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4559] write(3, "1000", 4) = 4 [pid 4559] close(3) = 0 [pid 4559] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4559] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4559] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4559] clone(child_stack=0x7fbc2b61e2f0, 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 4560 attached , parent_tid=[4560], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4560 [pid 4559] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4559] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4560] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4560] memfd_create("syzkaller", 0) = 3 [pid 4560] ftruncate(3, 0) = 0 [pid 4560] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4560] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4560] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4560] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4560] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4560] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4559] <... futex resumed>) = 0 [pid 4559] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4560] <... futex resumed>) = 0 [pid 4560] pipe2([5, 6], 0) = 0 [pid 4559] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4560] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4559] <... futex resumed>) = 0 [pid 4559] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4560] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4559] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4560] <... write resumed>) = 64568 [pid 4560] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4559] <... futex resumed>) = 0 [pid 4559] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4559] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4560] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4559] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4559] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4559] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4559] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4559] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4559] clone(child_stack=0x7fbc2b5fd2f0, 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 4561 attached [pid 4561] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4559] <... clone resumed>, parent_tid=[4561], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4561 [pid 4561] <... set_robust_list resumed>) = 0 [pid 4559] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4561] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4559] <... futex resumed>) = 0 [pid 4561] <... write resumed>) = 8 [pid 4559] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4561] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4559] <... futex resumed>) = 0 [pid 4561] read(5, [pid 4559] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4561] <... read resumed>NULL, 0) = 0 [pid 4559] <... futex resumed>) = 0 [pid 4561] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4559] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4561] <... futex resumed>) = 0 [pid 4559] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4561] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4560] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4560] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4560] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4559] exit_group(0 [pid 4561] <... futex resumed>) = ? [pid 4560] <... futex resumed>) = ? [pid 4559] <... exit_group resumed>) = ? [pid 4561] +++ exited with 0 +++ [pid 4560] +++ exited with 0 +++ [pid 4559] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4559, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4562 ./strace-static-x86_64: Process 4562 attached [pid 4562] set_robust_list(0x555556e316e0, 24) = 0 [pid 4562] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4562] setpgid(0, 0) = 0 [pid 4562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4562] write(3, "1000", 4) = 4 [pid 4562] close(3) = 0 [pid 4562] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4562] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4562] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4562] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4563], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4563 [pid 4562] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4562] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4563 attached [pid 4563] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4563] memfd_create("syzkaller", 0) = 3 [pid 4563] ftruncate(3, 0) = 0 [pid 4563] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4563] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4563] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4563] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4563] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4562] <... futex resumed>) = 0 [pid 4562] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4562] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4563] <... futex resumed>) = 1 [pid 4563] pipe2([5, 6], 0) = 0 [pid 4563] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4562] <... futex resumed>) = 0 [pid 4562] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4562] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4563] <... futex resumed>) = 1 [pid 4563] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4563] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4562] <... futex resumed>) = 0 [pid 4562] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4562] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4563] <... futex resumed>) = 1 [pid 4563] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4562] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4562] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4562] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4562] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4562] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4562] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4564], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4564 [pid 4562] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4562] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4564 attached [pid 4564] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4564] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4564] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4562] <... futex resumed>) = 0 [pid 4562] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4562] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4564] <... futex resumed>) = 1 [pid 4564] read(5, NULL, 0) = 0 [pid 4564] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4562] <... futex resumed>) = 0 [pid 4564] <... futex resumed>) = 1 [pid 4564] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4563] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4563] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4563] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4562] exit_group(0 [pid 4564] <... futex resumed>) = ? [pid 4563] <... futex resumed>) = ? [pid 4562] <... exit_group resumed>) = ? [pid 4563] +++ exited with 0 +++ [pid 4564] +++ exited with 0 +++ [pid 4562] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4562, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4565 ./strace-static-x86_64: Process 4565 attached [pid 4565] set_robust_list(0x555556e316e0, 24) = 0 [pid 4565] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4565] setpgid(0, 0) = 0 [pid 4565] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4565] write(3, "1000", 4) = 4 [pid 4565] close(3) = 0 [pid 4565] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4565] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4565] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4565] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4566], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4566 [pid 4565] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4565] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4566 attached [pid 4566] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4566] memfd_create("syzkaller", 0) = 3 [pid 4566] ftruncate(3, 0) = 0 [pid 4566] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4566] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4566] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4566] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4566] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4565] <... futex resumed>) = 0 [pid 4565] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4565] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4566] <... futex resumed>) = 1 [pid 4566] pipe2([5, 6], 0) = 0 [pid 4566] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4565] <... futex resumed>) = 0 [pid 4565] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4565] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4566] <... futex resumed>) = 1 [pid 4566] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4566] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4565] <... futex resumed>) = 0 [pid 4565] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4565] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4566] <... futex resumed>) = 1 [pid 4566] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4565] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4565] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4565] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4565] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4565] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4565] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4565] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4567], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4567 [pid 4565] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4565] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4567 attached [pid 4567] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4567] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4566] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4566] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4566] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4567] <... write resumed>) = 8 [pid 4567] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4565] <... futex resumed>) = 0 [pid 4565] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4566] <... futex resumed>) = 0 [pid 4565] <... futex resumed>) = 1 [pid 4566] read(5, [pid 4565] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4566] <... read resumed>NULL, 0) = 0 [pid 4566] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4565] <... futex resumed>) = 0 [pid 4566] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4565] exit_group(0 [pid 4566] <... futex resumed>) = ? [pid 4565] <... exit_group resumed>) = ? [pid 4566] +++ exited with 0 +++ [pid 4567] <... futex resumed>) = ? [pid 4567] +++ exited with 0 +++ [pid 4565] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4565, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4568 attached , child_tidptr=0x555556e316d0) = 4568 [pid 4568] set_robust_list(0x555556e316e0, 24) = 0 [pid 4568] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4568] setpgid(0, 0) = 0 [pid 4568] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4568] write(3, "1000", 4) = 4 [pid 4568] close(3) = 0 [pid 4568] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4568] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4568] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4568] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4569], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4569 [pid 4568] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4568] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4569 attached [pid 4569] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4569] memfd_create("syzkaller", 0) = 3 [pid 4569] ftruncate(3, 0) = 0 [pid 4569] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4569] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4569] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4569] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4569] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4568] <... futex resumed>) = 0 [pid 4568] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4568] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4569] <... futex resumed>) = 1 [pid 4569] pipe2([5, 6], 0) = 0 [pid 4569] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4568] <... futex resumed>) = 0 [pid 4568] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4568] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4569] <... futex resumed>) = 1 [pid 4569] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4569] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4568] <... futex resumed>) = 0 [pid 4568] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4568] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4569] <... futex resumed>) = 1 [pid 4569] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4568] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4568] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4568] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4568] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4568] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4570], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4570 ./strace-static-x86_64: Process 4570 attached [pid 4568] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4570] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4568] <... futex resumed>) = 0 [pid 4570] <... set_robust_list resumed>) = 0 [pid 4568] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4570] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4570] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4568] <... futex resumed>) = 0 [pid 4568] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4570] read(5, [pid 4568] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4570] <... read resumed>NULL, 0) = 0 [pid 4570] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4568] <... futex resumed>) = 0 [pid 4570] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4569] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4569] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4569] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4568] exit_group(0 [pid 4570] <... futex resumed>) = ? [pid 4569] <... futex resumed>) = ? [pid 4568] <... exit_group resumed>) = ? [pid 4570] +++ exited with 0 +++ [pid 4569] +++ exited with 0 +++ [pid 4568] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4568, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4571 ./strace-static-x86_64: Process 4571 attached [pid 4571] set_robust_list(0x555556e316e0, 24) = 0 [pid 4571] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4571] setpgid(0, 0) = 0 [pid 4571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4571] write(3, "1000", 4) = 4 [pid 4571] close(3) = 0 [pid 4571] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4571] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4571] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4571] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4572], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4572 [pid 4571] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4571] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4572 attached [pid 4572] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4572] memfd_create("syzkaller", 0) = 3 [pid 4572] ftruncate(3, 0) = 0 [pid 4572] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4572] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4572] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4572] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4572] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4571] <... futex resumed>) = 0 [pid 4571] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4571] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4572] <... futex resumed>) = 1 [pid 4572] pipe2([5, 6], 0) = 0 [pid 4572] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4571] <... futex resumed>) = 0 [pid 4571] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4571] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4572] <... futex resumed>) = 1 [pid 4572] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4572] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4571] <... futex resumed>) = 0 [pid 4571] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4571] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4572] <... futex resumed>) = 1 [pid 4572] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4571] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4571] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4571] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4571] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4571] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4571] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4573], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4573 [pid 4571] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4571] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4573 attached [pid 4573] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4573] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4572] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4572] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4572] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4573] <... write resumed>) = 8 [pid 4573] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4571] <... futex resumed>) = 0 [pid 4571] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4572] <... futex resumed>) = 0 [pid 4571] <... futex resumed>) = 1 [pid 4572] read(5, [pid 4571] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4572] <... read resumed>NULL, 0) = 0 [pid 4572] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4571] <... futex resumed>) = 0 [pid 4572] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4571] exit_group(0 [pid 4572] <... futex resumed>) = ? [pid 4571] <... exit_group resumed>) = ? [pid 4572] +++ exited with 0 +++ [pid 4573] <... futex resumed>) = ? [pid 4573] +++ exited with 0 +++ [pid 4571] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4571, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4574 ./strace-static-x86_64: Process 4574 attached [pid 4574] set_robust_list(0x555556e316e0, 24) = 0 [pid 4574] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4574] setpgid(0, 0) = 0 [pid 4574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4574] write(3, "1000", 4) = 4 [pid 4574] close(3) = 0 [pid 4574] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4574] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4574] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4574] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4575], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4575 [pid 4574] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4574] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4575 attached [pid 4575] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4575] memfd_create("syzkaller", 0) = 3 [pid 4575] ftruncate(3, 0) = 0 [pid 4575] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4575] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4575] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4575] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4575] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4574] <... futex resumed>) = 0 [pid 4574] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4574] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4575] <... futex resumed>) = 1 [pid 4575] pipe2([5, 6], 0) = 0 [pid 4575] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4574] <... futex resumed>) = 0 [pid 4574] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4574] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4575] <... futex resumed>) = 1 [pid 4575] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4575] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4574] <... futex resumed>) = 0 [pid 4574] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4574] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4575] <... futex resumed>) = 1 [pid 4575] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4574] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4574] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4574] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4574] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4574] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4574] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4574] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4574] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4576], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4576 [pid 4574] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4574] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4576 attached [pid 4576] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4576] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4576] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4574] <... futex resumed>) = 0 [pid 4574] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4574] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4576] <... futex resumed>) = 1 [pid 4576] read(5, NULL, 0) = 0 [pid 4576] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4574] <... futex resumed>) = 0 [pid 4576] <... futex resumed>) = 1 [pid 4576] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4575] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4575] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4575] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4574] exit_group(0 [pid 4575] <... futex resumed>) = ? [pid 4574] <... exit_group resumed>) = ? [pid 4576] <... futex resumed>) = ? [pid 4575] +++ exited with 0 +++ [pid 4576] +++ exited with 0 +++ [pid 4574] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4574, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4577 ./strace-static-x86_64: Process 4577 attached [pid 4577] set_robust_list(0x555556e316e0, 24) = 0 [pid 4577] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4577] setpgid(0, 0) = 0 [pid 4577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4577] write(3, "1000", 4) = 4 [pid 4577] close(3) = 0 [pid 4577] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4577] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4577] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4577] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4578], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4578 [pid 4577] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4577] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4578 attached [pid 4578] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4578] memfd_create("syzkaller", 0) = 3 [pid 4578] ftruncate(3, 0) = 0 [pid 4578] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4578] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4578] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4578] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4578] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4577] <... futex resumed>) = 0 [pid 4578] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4577] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4578] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4577] <... futex resumed>) = 0 [pid 4578] pipe2( [pid 4577] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4578] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4578] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4577] <... futex resumed>) = 0 [pid 4578] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4577] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4578] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4577] <... futex resumed>) = 0 [pid 4578] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4577] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4578] <... write resumed>) = 64568 [pid 4578] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4577] <... futex resumed>) = 0 [pid 4578] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4577] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4578] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4577] <... futex resumed>) = 0 [pid 4578] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4577] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4577] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4577] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4577] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4577] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4577] clone(child_stack=0x7fbc2b5fd2f0, 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 4579 attached [pid 4579] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4577] <... clone resumed>, parent_tid=[4579], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4579 [pid 4579] <... set_robust_list resumed>) = 0 [pid 4577] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4579] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4577] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4579] <... write resumed>) = 8 [pid 4578] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4579] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4578] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4579] <... futex resumed>) = 1 [pid 4578] <... futex resumed>) = 0 [pid 4579] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4578] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4577] <... futex resumed>) = 0 [pid 4577] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4578] <... futex resumed>) = 0 [pid 4577] <... futex resumed>) = 1 [pid 4578] read(5, [pid 4577] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4578] <... read resumed>NULL, 0) = 0 [pid 4578] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4577] <... futex resumed>) = 0 [pid 4578] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4577] exit_group(0 [pid 4579] <... futex resumed>) = ? [pid 4578] <... futex resumed>) = ? [pid 4577] <... exit_group resumed>) = ? [pid 4579] +++ exited with 0 +++ [pid 4578] +++ exited with 0 +++ [pid 4577] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4577, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4580 ./strace-static-x86_64: Process 4580 attached [pid 4580] set_robust_list(0x555556e316e0, 24) = 0 [pid 4580] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4580] setpgid(0, 0) = 0 [pid 4580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4580] write(3, "1000", 4) = 4 [pid 4580] close(3) = 0 [pid 4580] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4580] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4580] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4580] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4581], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4581 [pid 4580] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 4581 attached [pid 4581] set_robust_list(0x7fbc2b61e9e0, 24 [pid 4580] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4581] <... set_robust_list resumed>) = 0 [pid 4581] memfd_create("syzkaller", 0) = 3 [pid 4581] ftruncate(3, 0) = 0 [pid 4581] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4581] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4581] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4581] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4581] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4580] <... futex resumed>) = 0 [pid 4580] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4580] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4581] pipe2([5, 6], 0) = 0 [pid 4581] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4580] <... futex resumed>) = 0 [pid 4580] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4580] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4581] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4581] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4580] <... futex resumed>) = 0 [pid 4580] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4580] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4581] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4580] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4580] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4580] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4580] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4580] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4580] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4580] clone(child_stack=0x7fbc2b5fd2f0, 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 4582 attached , parent_tid=[4582], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4582 [pid 4580] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4580] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4582] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4582] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4581] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4582] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4580] <... futex resumed>) = 0 [pid 4582] read(5, [pid 4580] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4582] <... read resumed>NULL, 0) = 0 [pid 4580] <... futex resumed>) = 0 [pid 4582] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4580] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4582] <... futex resumed>) = 0 [pid 4580] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4582] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4581] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4581] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4580] exit_group(0 [pid 4582] <... futex resumed>) = ? [pid 4581] <... futex resumed>) = ? [pid 4580] <... exit_group resumed>) = ? [pid 4581] +++ exited with 0 +++ [pid 4582] +++ exited with 0 +++ [pid 4580] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4580, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4583 ./strace-static-x86_64: Process 4583 attached [pid 4583] set_robust_list(0x555556e316e0, 24) = 0 [pid 4583] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4583] setpgid(0, 0) = 0 [pid 4583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4583] write(3, "1000", 4) = 4 [pid 4583] close(3) = 0 [pid 4583] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4583] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4583] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4583] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4584], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4584 [pid 4583] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4583] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4584 attached [pid 4584] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4584] memfd_create("syzkaller", 0) = 3 [pid 4584] ftruncate(3, 0) = 0 [pid 4584] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4584] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4584] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4584] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4584] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4583] <... futex resumed>) = 0 [pid 4583] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4583] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4584] <... futex resumed>) = 1 [pid 4584] pipe2([5, 6], 0) = 0 [pid 4584] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4583] <... futex resumed>) = 0 [pid 4583] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4583] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4584] <... futex resumed>) = 1 [pid 4584] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4584] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4583] <... futex resumed>) = 0 [pid 4583] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4583] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4584] <... futex resumed>) = 1 [pid 4584] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4583] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4583] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4583] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4583] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4583] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4583] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4583] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4585], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4585 [pid 4583] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4583] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4585 attached [pid 4585] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4585] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4585] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4584] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4584] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4584] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4583] <... futex resumed>) = 0 [pid 4583] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4584] <... futex resumed>) = 0 [pid 4583] <... futex resumed>) = 1 [pid 4584] read(5, [pid 4583] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4584] <... read resumed>NULL, 0) = 0 [pid 4585] <... futex resumed>) = 1 [pid 4584] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4583] <... futex resumed>) = 0 [pid 4584] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4583] exit_group(0 [pid 4585] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4584] <... futex resumed>) = ? [pid 4583] <... exit_group resumed>) = ? [pid 4585] <... futex resumed>) = ? [pid 4584] +++ exited with 0 +++ [pid 4585] +++ exited with 0 +++ [pid 4583] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4583, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4586 ./strace-static-x86_64: Process 4586 attached [pid 4586] set_robust_list(0x555556e316e0, 24) = 0 [pid 4586] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4586] setpgid(0, 0) = 0 [pid 4586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4586] write(3, "1000", 4) = 4 [pid 4586] close(3) = 0 [pid 4586] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4586] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4586] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4586] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4587], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4587 [pid 4586] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4586] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4587 attached [pid 4587] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4587] memfd_create("syzkaller", 0) = 3 [pid 4587] ftruncate(3, 0) = 0 [pid 4587] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4587] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4587] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4587] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4587] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4586] <... futex resumed>) = 0 [pid 4586] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4587] pipe2( [pid 4586] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4587] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4587] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4586] <... futex resumed>) = 0 [pid 4586] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4586] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4587] <... futex resumed>) = 1 [pid 4587] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4587] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4586] <... futex resumed>) = 0 [pid 4586] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4586] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4587] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4586] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4586] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4586] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4586] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4586] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4586] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4586] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4588], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4588 [pid 4586] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4586] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4588 attached [pid 4588] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4588] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4587] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4587] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4587] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4588] <... write resumed>) = 8 [pid 4588] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4586] <... futex resumed>) = 0 [pid 4586] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4587] <... futex resumed>) = 0 [pid 4586] <... futex resumed>) = 1 [pid 4587] read(5, [pid 4586] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4587] <... read resumed>NULL, 0) = 0 [pid 4587] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4586] <... futex resumed>) = 0 [pid 4587] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4586] exit_group(0 [pid 4587] <... futex resumed>) = ? [pid 4586] <... exit_group resumed>) = ? [pid 4587] +++ exited with 0 +++ [pid 4588] <... futex resumed>) = ? [pid 4588] +++ exited with 0 +++ [pid 4586] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4586, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4589 ./strace-static-x86_64: Process 4589 attached [pid 4589] set_robust_list(0x555556e316e0, 24) = 0 [pid 4589] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4589] setpgid(0, 0) = 0 [pid 4589] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4589] write(3, "1000", 4) = 4 [pid 4589] close(3) = 0 [pid 4589] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4589] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4589] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4589] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4590], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4590 [pid 4589] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4589] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4590 attached [pid 4590] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4590] memfd_create("syzkaller", 0) = 3 [pid 4590] ftruncate(3, 0) = 0 [pid 4590] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4590] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4590] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4590] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4590] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4589] <... futex resumed>) = 0 [pid 4589] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4589] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4590] <... futex resumed>) = 1 [pid 4590] pipe2([5, 6], 0) = 0 [pid 4590] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4589] <... futex resumed>) = 0 [pid 4589] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4589] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4590] <... futex resumed>) = 1 [pid 4590] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4590] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4589] <... futex resumed>) = 0 [pid 4589] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4589] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4590] <... futex resumed>) = 1 [pid 4590] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4589] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4589] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4589] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4589] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4589] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4589] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4589] clone(child_stack=0x7fbc2b5fd2f0, 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 4591 attached [pid 4591] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4589] <... clone resumed>, parent_tid=[4591], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4591 [pid 4591] <... set_robust_list resumed>) = 0 [pid 4589] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4591] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4589] <... futex resumed>) = 0 [pid 4589] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4591] <... write resumed>) = 8 [pid 4590] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4591] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4590] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4591] <... futex resumed>) = 1 [pid 4590] <... futex resumed>) = 0 [pid 4589] <... futex resumed>) = 0 [pid 4591] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4590] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4589] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4589] <... futex resumed>) = 0 [pid 4590] read(5, NULL, 0) = 0 [pid 4589] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4590] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4589] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4590] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4589] exit_group(0 [pid 4591] <... futex resumed>) = ? [pid 4590] <... futex resumed>) = ? [pid 4589] <... exit_group resumed>) = ? [pid 4591] +++ exited with 0 +++ [pid 4590] +++ exited with 0 +++ [pid 4589] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4589, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4592 ./strace-static-x86_64: Process 4592 attached [pid 4592] set_robust_list(0x555556e316e0, 24) = 0 [pid 4592] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4592] setpgid(0, 0) = 0 [pid 4592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4592] write(3, "1000", 4) = 4 [pid 4592] close(3) = 0 [pid 4592] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4592] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4592] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4592] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4593], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4593 [pid 4592] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4592] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4593 attached [pid 4593] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4593] memfd_create("syzkaller", 0) = 3 [pid 4593] ftruncate(3, 0) = 0 [pid 4593] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4593] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4593] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4593] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4593] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4593] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4592] <... futex resumed>) = 0 [pid 4592] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4592] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4593] <... futex resumed>) = 0 [pid 4593] pipe2([5, 6], 0) = 0 [pid 4593] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4592] <... futex resumed>) = 0 [pid 4592] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4592] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4593] <... futex resumed>) = 1 [pid 4593] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4593] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4592] <... futex resumed>) = 0 [pid 4592] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4592] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4593] <... futex resumed>) = 1 [pid 4593] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4592] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4592] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4592] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4592] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4592] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4594], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4594 [pid 4592] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4592] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4594 attached [pid 4594] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4594] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4593] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4593] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4593] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4594] <... write resumed>) = 8 [pid 4594] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4592] <... futex resumed>) = 0 [pid 4592] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4593] <... futex resumed>) = 0 [pid 4592] <... futex resumed>) = 1 [pid 4593] read(5, [pid 4592] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4593] <... read resumed>NULL, 0) = 0 [pid 4593] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4592] <... futex resumed>) = 0 [pid 4593] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4592] exit_group(0 [pid 4593] <... futex resumed>) = ? [pid 4592] <... exit_group resumed>) = ? [pid 4593] +++ exited with 0 +++ [pid 4594] <... futex resumed>) = ? [pid 4594] +++ exited with 0 +++ [pid 4592] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4592, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4595 ./strace-static-x86_64: Process 4595 attached [pid 4595] set_robust_list(0x555556e316e0, 24) = 0 [pid 4595] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4595] setpgid(0, 0) = 0 [pid 4595] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4595] write(3, "1000", 4) = 4 [pid 4595] close(3) = 0 [pid 4595] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4595] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4595] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4595] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4596], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4596 [pid 4595] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4595] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4596 attached [pid 4596] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4596] memfd_create("syzkaller", 0) = 3 [pid 4596] ftruncate(3, 0) = 0 [pid 4596] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4596] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4596] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4596] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4596] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4595] <... futex resumed>) = 0 [pid 4595] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4595] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4596] <... futex resumed>) = 1 [pid 4596] pipe2([5, 6], 0) = 0 [pid 4596] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4595] <... futex resumed>) = 0 [pid 4596] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4595] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4596] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4595] <... futex resumed>) = 0 [pid 4595] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4596] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4596] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4595] <... futex resumed>) = 0 [pid 4596] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4595] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4596] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4596] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4595] <... futex resumed>) = 0 [pid 4595] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4595] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4595] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4595] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4595] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4595] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4595] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4597], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4597 [pid 4595] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4595] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4597 attached [pid 4597] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4597] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4596] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4596] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4596] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4597] <... write resumed>) = 8 [pid 4597] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4595] <... futex resumed>) = 0 [pid 4595] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4596] <... futex resumed>) = 0 [pid 4595] <... futex resumed>) = 1 [pid 4596] read(5, [pid 4595] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4596] <... read resumed>NULL, 0) = 0 [pid 4596] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4595] <... futex resumed>) = 0 [pid 4596] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4595] exit_group(0 [pid 4596] <... futex resumed>) = ? [pid 4595] <... exit_group resumed>) = ? [pid 4596] +++ exited with 0 +++ [pid 4597] <... futex resumed>) = ? [pid 4597] +++ exited with 0 +++ [pid 4595] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4595, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4598 ./strace-static-x86_64: Process 4598 attached [pid 4598] set_robust_list(0x555556e316e0, 24) = 0 [pid 4598] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4598] setpgid(0, 0) = 0 [pid 4598] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4598] write(3, "1000", 4) = 4 [pid 4598] close(3) = 0 [pid 4598] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4598] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4598] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4598] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4599], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4599 [pid 4598] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4598] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4599 attached [pid 4599] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4599] memfd_create("syzkaller", 0) = 3 [pid 4599] ftruncate(3, 0) = 0 [pid 4599] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4599] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4599] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4599] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4599] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4599] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4598] <... futex resumed>) = 0 [pid 4598] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4599] <... futex resumed>) = 0 [pid 4598] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4599] pipe2([5, 6], 0) = 0 [pid 4599] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4598] <... futex resumed>) = 0 [pid 4598] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4599] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4598] <... futex resumed>) = 0 [pid 4598] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4599] <... write resumed>) = 64568 [pid 4599] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4598] <... futex resumed>) = 0 [pid 4598] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4598] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4599] <... futex resumed>) = 1 [pid 4599] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4598] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4598] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4598] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4598] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4598] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4598] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4600], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4600 [pid 4598] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4598] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4600 attached [pid 4600] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4600] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4599] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4600] <... write resumed>) = 8 [pid 4599] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4599] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4600] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4598] <... futex resumed>) = 0 [pid 4598] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4599] <... futex resumed>) = 0 [pid 4598] <... futex resumed>) = 1 [pid 4599] read(5, [pid 4598] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4599] <... read resumed>NULL, 0) = 0 [pid 4599] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4598] <... futex resumed>) = 0 [pid 4599] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4598] exit_group(0 [pid 4599] <... futex resumed>) = ? [pid 4598] <... exit_group resumed>) = ? [pid 4599] +++ exited with 0 +++ [pid 4600] <... futex resumed>) = ? [pid 4600] +++ exited with 0 +++ [pid 4598] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4598, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4601 ./strace-static-x86_64: Process 4601 attached [pid 4601] set_robust_list(0x555556e316e0, 24) = 0 [pid 4601] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4601] setpgid(0, 0) = 0 [pid 4601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4601] write(3, "1000", 4) = 4 [pid 4601] close(3) = 0 [pid 4601] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4601] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4601] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4601] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4602], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4602 [pid 4601] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4601] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4602 attached [pid 4602] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4602] memfd_create("syzkaller", 0) = 3 [pid 4602] ftruncate(3, 0) = 0 [pid 4602] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4602] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4602] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4602] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4602] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4601] <... futex resumed>) = 0 [pid 4601] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4602] <... futex resumed>) = 1 [pid 4601] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4602] pipe2([5, 6], 0) = 0 [pid 4602] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4601] <... futex resumed>) = 0 [pid 4601] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4601] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4602] <... futex resumed>) = 1 [pid 4602] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4602] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4601] <... futex resumed>) = 0 [pid 4602] <... futex resumed>) = 1 [pid 4601] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4602] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4601] <... futex resumed>) = 0 [pid 4601] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4601] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4601] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4601] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4601] clone(child_stack=0x7fbc2b5fd2f0, 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 4603 attached , parent_tid=[4603], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4603 [pid 4601] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4603] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4601] <... futex resumed>) = 0 [pid 4603] <... set_robust_list resumed>) = 0 [pid 4601] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4603] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4602] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4603] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4602] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4603] <... futex resumed>) = 1 [pid 4602] <... futex resumed>) = 0 [pid 4603] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4602] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4601] <... futex resumed>) = 0 [pid 4602] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4601] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4602] read(5, [pid 4601] <... futex resumed>) = 0 [pid 4602] <... read resumed>NULL, 0) = 0 [pid 4601] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4602] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4601] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4602] <... futex resumed>) = 0 [pid 4601] exit_group(0 [pid 4603] <... futex resumed>) = ? [pid 4601] <... exit_group resumed>) = ? [pid 4602] +++ exited with 0 +++ [pid 4603] +++ exited with 0 +++ [pid 4601] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4601, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4604 ./strace-static-x86_64: Process 4604 attached [pid 4604] set_robust_list(0x555556e316e0, 24) = 0 [pid 4604] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4604] setpgid(0, 0) = 0 [pid 4604] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4604] write(3, "1000", 4) = 4 [pid 4604] close(3) = 0 [pid 4604] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4604] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4604] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4604] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4605], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4605 [pid 4604] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4604] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4605 attached [pid 4605] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4605] memfd_create("syzkaller", 0) = 3 [pid 4605] ftruncate(3, 0) = 0 [pid 4605] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4605] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4605] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4605] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4605] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4604] <... futex resumed>) = 0 [pid 4604] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4604] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4605] <... futex resumed>) = 1 [pid 4605] pipe2([5, 6], 0) = 0 [pid 4605] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4604] <... futex resumed>) = 0 [pid 4604] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4604] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4605] <... futex resumed>) = 1 [pid 4605] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4605] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4604] <... futex resumed>) = 0 [pid 4604] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4604] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4605] <... futex resumed>) = 1 [pid 4605] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4604] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4604] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4604] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4604] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4604] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4604] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4604] clone(child_stack=0x7fbc2b5fd2f0, 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 4606 attached , parent_tid=[4606], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4606 [pid 4604] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4604] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4606] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4606] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4605] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4605] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4605] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4606] <... write resumed>) = 8 [pid 4606] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4604] <... futex resumed>) = 0 [pid 4606] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4604] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4605] <... futex resumed>) = 0 [pid 4604] <... futex resumed>) = 1 [pid 4605] read(5, [pid 4604] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4605] <... read resumed>NULL, 0) = 0 [pid 4605] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4604] <... futex resumed>) = 0 [pid 4605] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4604] exit_group(0 [pid 4606] <... futex resumed>) = ? [pid 4605] <... futex resumed>) = ? [pid 4604] <... exit_group resumed>) = ? [pid 4606] +++ exited with 0 +++ [pid 4605] +++ exited with 0 +++ [pid 4604] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4604, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4607 ./strace-static-x86_64: Process 4607 attached [pid 4607] set_robust_list(0x555556e316e0, 24) = 0 [pid 4607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4607] setpgid(0, 0) = 0 [pid 4607] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4607] write(3, "1000", 4) = 4 [pid 4607] close(3) = 0 [pid 4607] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4607] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4607] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4607] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4608], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4608 [pid 4607] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4607] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4608 attached [pid 4608] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4608] memfd_create("syzkaller", 0) = 3 [pid 4608] ftruncate(3, 0) = 0 [pid 4608] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4608] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4608] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4608] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4608] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4607] <... futex resumed>) = 0 [pid 4607] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4607] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4608] <... futex resumed>) = 1 [pid 4608] pipe2([5, 6], 0) = 0 [pid 4608] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4607] <... futex resumed>) = 0 [pid 4607] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4607] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4608] <... futex resumed>) = 1 [pid 4608] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4608] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4607] <... futex resumed>) = 0 [pid 4608] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4607] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4608] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4607] <... futex resumed>) = 0 [pid 4608] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4607] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4607] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4607] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4607] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4607] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4609], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4609 [pid 4607] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4607] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4609 attached [pid 4609] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4609] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4609] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4607] <... futex resumed>) = 0 [pid 4608] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4607] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4608] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4607] <... futex resumed>) = 0 [pid 4608] <... futex resumed>) = 0 [pid 4607] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4608] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4609] <... futex resumed>) = 1 [pid 4609] read(5, NULL, 0) = 0 [pid 4609] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4607] <... futex resumed>) = 0 [pid 4607] exit_group(0) = ? [pid 4608] <... futex resumed>) = ? [pid 4609] <... futex resumed>) = ? [pid 4608] +++ exited with 0 +++ [pid 4609] +++ exited with 0 +++ [pid 4607] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4607, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4610 ./strace-static-x86_64: Process 4610 attached [pid 4610] set_robust_list(0x555556e316e0, 24) = 0 [pid 4610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4610] setpgid(0, 0) = 0 [pid 4610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4610] write(3, "1000", 4) = 4 [pid 4610] close(3) = 0 [pid 4610] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4610] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4610] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4610] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4611], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4611 [pid 4610] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4610] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4611 attached [pid 4611] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4611] memfd_create("syzkaller", 0) = 3 [pid 4611] ftruncate(3, 0) = 0 [pid 4611] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4611] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4611] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4611] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4611] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4610] <... futex resumed>) = 0 [pid 4610] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4610] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4611] <... futex resumed>) = 1 [pid 4611] pipe2([5, 6], 0) = 0 [pid 4611] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4610] <... futex resumed>) = 0 [pid 4610] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4610] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4611] <... futex resumed>) = 1 [pid 4611] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4611] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4610] <... futex resumed>) = 0 [pid 4610] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4610] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4611] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4610] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4610] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4610] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4610] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4610] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4610] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4610] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4612], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4612 [pid 4610] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4610] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4612 attached [pid 4612] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4612] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4612] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4610] <... futex resumed>) = 0 [pid 4610] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4610] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4612] <... futex resumed>) = 1 [pid 4612] read(5, NULL, 0) = 0 [pid 4612] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4610] <... futex resumed>) = 0 [pid 4612] <... futex resumed>) = 1 [pid 4612] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4611] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4611] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4611] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4610] exit_group(0) = ? [pid 4612] <... futex resumed>) = ? [pid 4611] <... futex resumed>) = ? [pid 4611] +++ exited with 0 +++ [pid 4612] +++ exited with 0 +++ [pid 4610] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4610, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4613 ./strace-static-x86_64: Process 4613 attached [pid 4613] set_robust_list(0x555556e316e0, 24) = 0 [pid 4613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4613] setpgid(0, 0) = 0 [pid 4613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4613] write(3, "1000", 4) = 4 [pid 4613] close(3) = 0 [pid 4613] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4613] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4613] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4613] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4614], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4614 [pid 4613] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4613] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4614 attached [pid 4614] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4614] memfd_create("syzkaller", 0) = 3 [pid 4614] ftruncate(3, 0) = 0 [pid 4614] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4614] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4614] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4614] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4614] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4613] <... futex resumed>) = 0 [pid 4613] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4613] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4614] <... futex resumed>) = 1 [pid 4614] pipe2([5, 6], 0) = 0 [pid 4614] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4613] <... futex resumed>) = 0 [pid 4613] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4613] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4614] <... futex resumed>) = 1 [pid 4614] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4614] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4613] <... futex resumed>) = 0 [pid 4613] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4613] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4614] <... futex resumed>) = 1 [pid 4614] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4613] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4613] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4613] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4613] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4613] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4615], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4615 [pid 4613] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4613] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4615 attached [pid 4615] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4615] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4614] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4614] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4614] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4615] <... write resumed>) = 8 [pid 4615] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4613] <... futex resumed>) = 0 [pid 4613] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4614] <... futex resumed>) = 0 [pid 4613] <... futex resumed>) = 1 [pid 4614] read(5, [pid 4613] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4614] <... read resumed>NULL, 0) = 0 [pid 4614] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4613] <... futex resumed>) = 0 [pid 4614] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4613] exit_group(0 [pid 4614] <... futex resumed>) = ? [pid 4613] <... exit_group resumed>) = ? [pid 4614] +++ exited with 0 +++ [pid 4615] <... futex resumed>) = ? [pid 4615] +++ exited with 0 +++ [pid 4613] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4613, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4616 ./strace-static-x86_64: Process 4616 attached [pid 4616] set_robust_list(0x555556e316e0, 24) = 0 [pid 4616] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4616] setpgid(0, 0) = 0 [pid 4616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4616] write(3, "1000", 4) = 4 [pid 4616] close(3) = 0 [pid 4616] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4616] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4616] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4616] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4617], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4617 [pid 4616] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4616] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4617 attached [pid 4617] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4617] memfd_create("syzkaller", 0) = 3 [pid 4617] ftruncate(3, 0) = 0 [pid 4617] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4617] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4617] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4617] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4617] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4616] <... futex resumed>) = 0 [pid 4616] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4616] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4617] <... futex resumed>) = 1 [pid 4617] pipe2([5, 6], 0) = 0 [pid 4617] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4616] <... futex resumed>) = 0 [pid 4616] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4616] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4617] <... futex resumed>) = 1 [pid 4617] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4617] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4616] <... futex resumed>) = 0 [pid 4616] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4616] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4617] <... futex resumed>) = 1 [pid 4617] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4616] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4616] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4616] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4616] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4616] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4616] clone(child_stack=0x7fbc2b5fd2f0, 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 4618 attached [pid 4618] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4616] <... clone resumed>, parent_tid=[4618], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4618 [pid 4618] <... set_robust_list resumed>) = 0 [pid 4616] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4618] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4616] <... futex resumed>) = 0 [pid 4616] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4617] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4618] <... write resumed>) = 8 [pid 4617] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4618] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4617] <... futex resumed>) = 0 [pid 4618] <... futex resumed>) = 1 [pid 4617] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4616] <... futex resumed>) = 0 [pid 4618] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4616] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4617] <... futex resumed>) = 0 [pid 4616] <... futex resumed>) = 1 [pid 4617] read(5, [pid 4616] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4617] <... read resumed>NULL, 0) = 0 [pid 4617] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4616] <... futex resumed>) = 0 [pid 4617] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4616] exit_group(0 [pid 4618] <... futex resumed>) = ? [pid 4617] <... futex resumed>) = ? [pid 4616] <... exit_group resumed>) = ? [pid 4617] +++ exited with 0 +++ [pid 4618] +++ exited with 0 +++ [pid 4616] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4616, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4619 ./strace-static-x86_64: Process 4619 attached [pid 4619] set_robust_list(0x555556e316e0, 24) = 0 [pid 4619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4619] setpgid(0, 0) = 0 [pid 4619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4619] write(3, "1000", 4) = 4 [pid 4619] close(3) = 0 [pid 4619] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4619] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4619] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4619] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4620], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4620 [pid 4619] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4619] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4620 attached [pid 4620] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4620] memfd_create("syzkaller", 0) = 3 [pid 4620] ftruncate(3, 0) = 0 [pid 4620] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4620] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4620] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4620] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4620] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4619] <... futex resumed>) = 0 [pid 4619] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4619] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4620] <... futex resumed>) = 1 [pid 4620] pipe2([5, 6], 0) = 0 [pid 4620] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4619] <... futex resumed>) = 0 [pid 4619] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4619] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4620] <... futex resumed>) = 1 [pid 4620] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4620] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4619] <... futex resumed>) = 0 [pid 4619] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4619] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4620] <... futex resumed>) = 1 [pid 4620] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4619] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4619] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4619] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4619] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4619] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4619] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4619] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4621], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4621 [pid 4619] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4619] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4621 attached [pid 4621] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4621] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4620] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4621] <... write resumed>) = 8 [pid 4620] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4620] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4621] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4619] <... futex resumed>) = 0 [pid 4619] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4620] <... futex resumed>) = 0 [pid 4619] <... futex resumed>) = 1 [pid 4620] read(5, [pid 4619] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4620] <... read resumed>NULL, 0) = 0 [pid 4620] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4619] <... futex resumed>) = 0 [pid 4620] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4619] exit_group(0 [pid 4620] <... futex resumed>) = ? [pid 4619] <... exit_group resumed>) = ? [pid 4620] +++ exited with 0 +++ [pid 4621] <... futex resumed>) = ? [pid 4621] +++ exited with 0 +++ [pid 4619] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4619, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4622 ./strace-static-x86_64: Process 4622 attached [pid 4622] set_robust_list(0x555556e316e0, 24) = 0 [pid 4622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4622] setpgid(0, 0) = 0 [pid 4622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4622] write(3, "1000", 4) = 4 [pid 4622] close(3) = 0 [pid 4622] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4622] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4622] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4622] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4623], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4623 [pid 4622] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4622] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4623 attached [pid 4623] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4623] memfd_create("syzkaller", 0) = 3 [pid 4623] ftruncate(3, 0) = 0 [pid 4623] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4623] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4623] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4623] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4623] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4623] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4622] <... futex resumed>) = 0 [pid 4622] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4623] <... futex resumed>) = 0 [pid 4622] <... futex resumed>) = 1 [pid 4622] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4623] pipe2([5, 6], 0) = 0 [pid 4623] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4622] <... futex resumed>) = 0 [pid 4622] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4622] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4623] <... futex resumed>) = 1 [pid 4623] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4623] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4622] <... futex resumed>) = 0 [pid 4623] <... futex resumed>) = 1 [pid 4622] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4623] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4622] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4622] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4622] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4622] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4622] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4622] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4624], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4624 [pid 4622] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4622] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4624 attached [pid 4624] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4624] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4624] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4622] <... futex resumed>) = 0 [pid 4622] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4622] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4624] <... futex resumed>) = 1 [pid 4624] read(5, NULL, 0) = 0 [pid 4624] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4622] <... futex resumed>) = 0 [pid 4623] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4624] <... futex resumed>) = 1 [pid 4623] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4624] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4623] <... futex resumed>) = 0 [pid 4623] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4622] exit_group(0) = ? [pid 4623] <... futex resumed>) = ? [pid 4623] +++ exited with 0 +++ [pid 4624] <... futex resumed>) = ? [pid 4624] +++ exited with 0 +++ [pid 4622] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4622, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4625 ./strace-static-x86_64: Process 4625 attached [pid 4625] set_robust_list(0x555556e316e0, 24) = 0 [pid 4625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4625] setpgid(0, 0) = 0 [pid 4625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4625] write(3, "1000", 4) = 4 [pid 4625] close(3) = 0 [pid 4625] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4625] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4625] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4625] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4626], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4626 [pid 4625] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4625] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4626 attached [pid 4626] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4626] memfd_create("syzkaller", 0) = 3 [pid 4626] ftruncate(3, 0) = 0 [pid 4626] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4626] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4626] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4626] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4626] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4625] <... futex resumed>) = 0 [pid 4625] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4625] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4626] <... futex resumed>) = 1 [pid 4626] pipe2([5, 6], 0) = 0 [pid 4626] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4625] <... futex resumed>) = 0 [pid 4625] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4625] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4626] <... futex resumed>) = 1 [pid 4626] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4626] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4625] <... futex resumed>) = 0 [pid 4625] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4625] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4626] <... futex resumed>) = 1 [pid 4626] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4625] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4625] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4625] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4625] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4625] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4625] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4627], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4627 [pid 4625] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4625] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4627 attached [pid 4627] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4627] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4626] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4626] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4626] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4627] <... write resumed>) = 8 [pid 4627] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4625] <... futex resumed>) = 0 [pid 4625] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4626] <... futex resumed>) = 0 [pid 4625] <... futex resumed>) = 1 [pid 4626] read(5, [pid 4625] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4626] <... read resumed>NULL, 0) = 0 [pid 4626] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4625] <... futex resumed>) = 0 [pid 4626] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4625] exit_group(0 [pid 4626] <... futex resumed>) = ? [pid 4625] <... exit_group resumed>) = ? [pid 4626] +++ exited with 0 +++ [pid 4627] <... futex resumed>) = ? [pid 4627] +++ exited with 0 +++ [pid 4625] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4625, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4628 attached , child_tidptr=0x555556e316d0) = 4628 [pid 4628] set_robust_list(0x555556e316e0, 24) = 0 [pid 4628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4628] setpgid(0, 0) = 0 [pid 4628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4628] write(3, "1000", 4) = 4 [pid 4628] close(3) = 0 [pid 4628] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4628] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4628] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4628] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4629], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4629 [pid 4628] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4628] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4629 attached [pid 4629] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4629] memfd_create("syzkaller", 0) = 3 [pid 4629] ftruncate(3, 0) = 0 [pid 4629] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4629] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4629] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4629] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4629] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4628] <... futex resumed>) = 0 [pid 4628] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4628] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4629] <... futex resumed>) = 1 [pid 4629] pipe2([5, 6], 0) = 0 [pid 4629] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4628] <... futex resumed>) = 0 [pid 4628] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4628] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4629] <... futex resumed>) = 1 [pid 4629] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4629] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4628] <... futex resumed>) = 0 [pid 4629] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4628] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4629] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4628] <... futex resumed>) = 0 [pid 4629] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4628] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4628] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4628] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4628] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4628] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4630], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4630 [pid 4628] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4628] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4630 attached [pid 4630] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4630] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4629] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4629] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4629] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4630] <... write resumed>) = 8 [pid 4630] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4628] <... futex resumed>) = 0 [pid 4628] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4629] <... futex resumed>) = 0 [pid 4628] <... futex resumed>) = 1 [pid 4629] read(5, [pid 4628] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4629] <... read resumed>NULL, 0) = 0 [pid 4629] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4628] <... futex resumed>) = 0 [pid 4629] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4628] exit_group(0 [pid 4629] <... futex resumed>) = ? [pid 4628] <... exit_group resumed>) = ? [pid 4629] +++ exited with 0 +++ [pid 4630] <... futex resumed>) = ? [pid 4630] +++ exited with 0 +++ [pid 4628] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4628, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4631 ./strace-static-x86_64: Process 4631 attached [pid 4631] set_robust_list(0x555556e316e0, 24) = 0 [pid 4631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4631] setpgid(0, 0) = 0 [pid 4631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4631] write(3, "1000", 4) = 4 [pid 4631] close(3) = 0 [pid 4631] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4631] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4631] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4631] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4632], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4632 [pid 4631] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4631] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4632 attached [pid 4632] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4632] memfd_create("syzkaller", 0) = 3 [pid 4632] ftruncate(3, 0) = 0 [pid 4632] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4632] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4632] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4632] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4632] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4631] <... futex resumed>) = 0 [pid 4631] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4631] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4632] <... futex resumed>) = 1 [pid 4632] pipe2([5, 6], 0) = 0 [pid 4632] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4631] <... futex resumed>) = 0 [pid 4631] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4631] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4632] <... futex resumed>) = 1 [pid 4632] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4632] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4631] <... futex resumed>) = 0 [pid 4631] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4631] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4632] <... futex resumed>) = 1 [pid 4632] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4631] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4631] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4631] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4631] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4631] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4631] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4633], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4633 [pid 4631] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4631] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4633 attached [pid 4633] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4633] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4632] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4632] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4632] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4633] <... write resumed>) = 8 [pid 4633] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4631] <... futex resumed>) = 0 [pid 4631] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4632] <... futex resumed>) = 0 [pid 4631] <... futex resumed>) = 1 [pid 4632] read(5, [pid 4631] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4632] <... read resumed>NULL, 0) = 0 [pid 4632] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4631] <... futex resumed>) = 0 [pid 4632] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4631] exit_group(0 [pid 4632] <... futex resumed>) = ? [pid 4631] <... exit_group resumed>) = ? [pid 4632] +++ exited with 0 +++ [pid 4633] <... futex resumed>) = ? [pid 4633] +++ exited with 0 +++ [pid 4631] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4631, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4634 ./strace-static-x86_64: Process 4634 attached [pid 4634] set_robust_list(0x555556e316e0, 24) = 0 [pid 4634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4634] setpgid(0, 0) = 0 [pid 4634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4634] write(3, "1000", 4) = 4 [pid 4634] close(3) = 0 [pid 4634] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4634] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4634] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4635], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4635 [pid 4634] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 4635 attached ) = 0 [pid 4635] set_robust_list(0x7fbc2b61e9e0, 24 [pid 4634] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4635] <... set_robust_list resumed>) = 0 [pid 4635] memfd_create("syzkaller", 0) = 3 [pid 4635] ftruncate(3, 0) = 0 [pid 4635] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4635] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4635] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4635] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4635] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4634] <... futex resumed>) = 0 [pid 4635] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4634] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4635] pipe2([5, 6], 0) = 0 [pid 4635] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4634] <... futex resumed>) = 0 [pid 4635] <... futex resumed>) = 0 [pid 4634] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4634] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4635] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4634] <... futex resumed>) = 0 [pid 4634] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4635] <... write resumed>) = 64568 [pid 4635] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4634] <... futex resumed>) = 0 [pid 4634] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4634] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4635] <... futex resumed>) = 1 [pid 4635] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4634] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4634] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4634] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4634] clone(child_stack=0x7fbc2b5fd2f0, 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 4636 attached [pid 4636] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4634] <... clone resumed>, parent_tid=[4636], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4636 [pid 4636] <... set_robust_list resumed>) = 0 [pid 4634] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4636] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4634] <... futex resumed>) = 0 [pid 4634] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4636] <... write resumed>) = 8 [pid 4635] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4636] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4634] <... futex resumed>) = 0 [pid 4636] read(5, [pid 4634] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4636] <... read resumed>NULL, 0) = 0 [pid 4634] <... futex resumed>) = 0 [pid 4636] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4634] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4636] <... futex resumed>) = 0 [pid 4634] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4636] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4635] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4635] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4634] exit_group(0 [pid 4636] <... futex resumed>) = ? [pid 4635] <... futex resumed>) = ? [pid 4634] <... exit_group resumed>) = ? [pid 4635] +++ exited with 0 +++ [pid 4636] +++ exited with 0 +++ [pid 4634] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4634, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4637 attached , child_tidptr=0x555556e316d0) = 4637 [pid 4637] set_robust_list(0x555556e316e0, 24) = 0 [pid 4637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4637] setpgid(0, 0) = 0 [pid 4637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4637] write(3, "1000", 4) = 4 [pid 4637] close(3) = 0 [pid 4637] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4637] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4637] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4637] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4638], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4638 [pid 4637] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4637] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4638 attached [pid 4638] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4638] memfd_create("syzkaller", 0) = 3 [pid 4638] ftruncate(3, 0) = 0 [pid 4638] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4638] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4638] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4638] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4638] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4637] <... futex resumed>) = 0 [pid 4637] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4637] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4638] <... futex resumed>) = 1 [pid 4638] pipe2([5, 6], 0) = 0 [pid 4638] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4637] <... futex resumed>) = 0 [pid 4637] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4637] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4638] <... futex resumed>) = 1 [pid 4638] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4638] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4637] <... futex resumed>) = 0 [pid 4637] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4637] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4638] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4637] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4637] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4637] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4637] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4637] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4637] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4637] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4639], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4639 [pid 4637] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4637] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4639 attached [pid 4639] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4639] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4639] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4637] <... futex resumed>) = 0 [pid 4637] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4637] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4639] <... futex resumed>) = 1 [pid 4639] read(5, NULL, 0) = 0 [pid 4639] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4637] <... futex resumed>) = 0 [pid 4639] <... futex resumed>) = 1 [pid 4639] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4638] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4638] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4638] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4637] exit_group(0) = ? [pid 4639] <... futex resumed>) = ? [pid 4639] +++ exited with 0 +++ [pid 4638] <... futex resumed>) = ? [pid 4638] +++ exited with 0 +++ [pid 4637] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4637, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4640 ./strace-static-x86_64: Process 4640 attached [pid 4640] set_robust_list(0x555556e316e0, 24) = 0 [pid 4640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4640] setpgid(0, 0) = 0 [pid 4640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4640] write(3, "1000", 4) = 4 [pid 4640] close(3) = 0 [pid 4640] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4640] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4640] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4640] clone(child_stack=0x7fbc2b61e2f0, 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 4641 attached , parent_tid=[4641], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4641 [pid 4640] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4640] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4641] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4641] memfd_create("syzkaller", 0) = 3 [pid 4641] ftruncate(3, 0) = 0 [pid 4641] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4641] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4641] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4641] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4641] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4641] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4640] <... futex resumed>) = 0 [pid 4640] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4640] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4641] <... futex resumed>) = 0 [pid 4641] pipe2([5, 6], 0) = 0 [pid 4641] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4640] <... futex resumed>) = 0 [pid 4640] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4640] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4641] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4641] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4640] <... futex resumed>) = 0 [pid 4640] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4640] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4641] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4640] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4640] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4640] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4640] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4640] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4640] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4640] clone(child_stack=0x7fbc2b5fd2f0, 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 4642 attached [pid 4642] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4640] <... clone resumed>, parent_tid=[4642], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4642 [pid 4642] <... set_robust_list resumed>) = 0 [pid 4640] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4642] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4640] <... futex resumed>) = 0 [pid 4642] <... write resumed>) = 8 [pid 4640] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4642] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4641] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4641] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4640] <... futex resumed>) = 0 [pid 4642] <... futex resumed>) = 1 [pid 4641] <... futex resumed>) = 0 [pid 4641] read(5, [pid 4640] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4641] <... read resumed>NULL, 0) = 0 [pid 4642] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4641] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4640] <... futex resumed>) = 0 [pid 4641] <... futex resumed>) = 0 [pid 4641] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4640] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 4640] exit_group(0 [pid 4642] <... futex resumed>) = ? [pid 4641] <... futex resumed>) = ? [pid 4640] <... exit_group resumed>) = ? [pid 4641] +++ exited with 0 +++ [pid 4642] +++ exited with 0 +++ [pid 4640] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4640, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4643 ./strace-static-x86_64: Process 4643 attached [pid 4643] set_robust_list(0x555556e316e0, 24) = 0 [pid 4643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4643] setpgid(0, 0) = 0 [pid 4643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4643] write(3, "1000", 4) = 4 [pid 4643] close(3) = 0 [pid 4643] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4643] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4643] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4643] clone(child_stack=0x7fbc2b61e2f0, 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 4644 attached , parent_tid=[4644], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4644 [pid 4643] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4643] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4644] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4644] memfd_create("syzkaller", 0) = 3 [pid 4644] ftruncate(3, 0) = 0 [pid 4644] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4644] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4644] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4644] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4644] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4643] <... futex resumed>) = 0 [pid 4643] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4643] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4644] <... futex resumed>) = 1 [pid 4644] pipe2([5, 6], 0) = 0 [pid 4644] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4643] <... futex resumed>) = 0 [pid 4643] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4643] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4644] <... futex resumed>) = 1 [pid 4644] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4644] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4643] <... futex resumed>) = 0 [pid 4643] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4643] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4644] <... futex resumed>) = 1 [pid 4644] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4643] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4643] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4643] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4643] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4643] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4643] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4646], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4646 [pid 4643] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4643] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4646 attached [pid 4646] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4646] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4644] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4644] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4644] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4646] <... write resumed>) = 8 [pid 4646] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4643] <... futex resumed>) = 0 [pid 4643] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4644] <... futex resumed>) = 0 [pid 4643] <... futex resumed>) = 1 [pid 4644] read(5, [pid 4643] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4644] <... read resumed>NULL, 0) = 0 [pid 4644] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4643] <... futex resumed>) = 0 [pid 4644] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4643] exit_group(0 [pid 4644] <... futex resumed>) = ? [pid 4643] <... exit_group resumed>) = ? [pid 4644] +++ exited with 0 +++ [pid 4646] <... futex resumed>) = ? [pid 4646] +++ exited with 0 +++ [pid 4643] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4643, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4647 ./strace-static-x86_64: Process 4647 attached [pid 4647] set_robust_list(0x555556e316e0, 24) = 0 [pid 4647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4647] setpgid(0, 0) = 0 [pid 4647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4647] write(3, "1000", 4) = 4 [pid 4647] close(3) = 0 [pid 4647] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4647] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4647] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4647] clone(child_stack=0x7fbc2b61e2f0, 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 4648 attached , parent_tid=[4648], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4648 [pid 4647] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4647] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4648] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4648] memfd_create("syzkaller", 0) = 3 [pid 4648] ftruncate(3, 0) = 0 [pid 4648] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4648] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4648] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4648] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4648] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4647] <... futex resumed>) = 0 [pid 4647] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4647] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4648] <... futex resumed>) = 1 [pid 4648] pipe2([5, 6], 0) = 0 [pid 4648] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4647] <... futex resumed>) = 0 [pid 4647] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4647] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4648] <... futex resumed>) = 1 [pid 4648] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4648] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4647] <... futex resumed>) = 0 [pid 4647] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4647] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4648] <... futex resumed>) = 1 [pid 4648] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4647] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4647] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4647] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4647] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4647] clone(child_stack=0x7fbc2b5fd2f0, 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 4649 attached , parent_tid=[4649], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4649 [pid 4647] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4649] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4647] <... futex resumed>) = 0 [pid 4649] <... set_robust_list resumed>) = 0 [pid 4647] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4649] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4648] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4649] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4648] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4649] <... futex resumed>) = 1 [pid 4648] <... futex resumed>) = 0 [pid 4647] <... futex resumed>) = 0 [pid 4649] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4648] read(5, [pid 4647] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4648] <... read resumed>NULL, 0) = 0 [pid 4647] <... futex resumed>) = 0 [pid 4648] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4647] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4648] <... futex resumed>) = 0 [pid 4647] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4648] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4647] exit_group(0 [pid 4649] <... futex resumed>) = ? [pid 4648] <... futex resumed>) = ? [pid 4647] <... exit_group resumed>) = ? [pid 4648] +++ exited with 0 +++ [pid 4649] +++ exited with 0 +++ [pid 4647] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4647, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4650 ./strace-static-x86_64: Process 4650 attached [pid 4650] set_robust_list(0x555556e316e0, 24) = 0 [pid 4650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4650] setpgid(0, 0) = 0 [pid 4650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4650] write(3, "1000", 4) = 4 [pid 4650] close(3) = 0 [pid 4650] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4650] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4650] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4651], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4651 [pid 4650] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4650] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4651 attached [pid 4651] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4651] memfd_create("syzkaller", 0) = 3 [pid 4651] ftruncate(3, 0) = 0 [pid 4651] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4651] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4651] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4651] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4651] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4650] <... futex resumed>) = 0 [pid 4650] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4651] <... futex resumed>) = 1 [pid 4650] <... futex resumed>) = 0 [pid 4651] pipe2( [pid 4650] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4651] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4651] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4650] <... futex resumed>) = 0 [pid 4650] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4650] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4651] <... futex resumed>) = 1 [pid 4651] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4651] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4650] <... futex resumed>) = 0 [pid 4650] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4650] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4651] <... futex resumed>) = 1 [pid 4651] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4650] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4650] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4650] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4650] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4650] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4650] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4652], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4652 [pid 4650] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4650] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4652 attached [pid 4652] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4652] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4651] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4651] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4651] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4652] <... write resumed>) = 8 [pid 4652] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4650] <... futex resumed>) = 0 [pid 4650] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4651] <... futex resumed>) = 0 [pid 4650] <... futex resumed>) = 1 [pid 4651] read(5, [pid 4650] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4651] <... read resumed>NULL, 0) = 0 [pid 4651] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4650] <... futex resumed>) = 0 [pid 4651] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4650] exit_group(0 [pid 4651] <... futex resumed>) = ? [pid 4650] <... exit_group resumed>) = ? [pid 4651] +++ exited with 0 +++ [pid 4652] <... futex resumed>) = ? [pid 4652] +++ exited with 0 +++ [pid 4650] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4650, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4653 ./strace-static-x86_64: Process 4653 attached [pid 4653] set_robust_list(0x555556e316e0, 24) = 0 [pid 4653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4653] setpgid(0, 0) = 0 [pid 4653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4653] write(3, "1000", 4) = 4 [pid 4653] close(3) = 0 [pid 4653] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4653] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4653] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4653] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4654], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4654 ./strace-static-x86_64: Process 4654 attached [pid 4653] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4654] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4653] <... futex resumed>) = 0 [pid 4654] memfd_create("syzkaller", 0 [pid 4653] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4654] <... memfd_create resumed>) = 3 [pid 4654] ftruncate(3, 0) = 0 [pid 4654] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4654] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4654] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4654] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4654] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4653] <... futex resumed>) = 0 [pid 4654] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4653] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4654] <... futex resumed>) = 0 [pid 4654] pipe2([5, 6], 0) = 0 [pid 4653] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4654] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4654] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4653] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4653] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4653] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4654] <... futex resumed>) = 0 [pid 4654] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4654] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4654] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4653] <... futex resumed>) = 0 [pid 4653] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4654] <... futex resumed>) = 0 [pid 4654] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4653] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4653] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4653] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4653] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4653] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4653] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4655], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4655 [pid 4653] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4653] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4655 attached [pid 4655] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4655] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4654] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4654] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4654] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4655] <... write resumed>) = 8 [pid 4655] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4653] <... futex resumed>) = 0 [pid 4653] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4654] <... futex resumed>) = 0 [pid 4653] <... futex resumed>) = 1 [pid 4654] read(5, [pid 4653] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4654] <... read resumed>NULL, 0) = 0 [pid 4654] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4653] <... futex resumed>) = 0 [pid 4654] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4653] exit_group(0 [pid 4654] <... futex resumed>) = ? [pid 4653] <... exit_group resumed>) = ? [pid 4654] +++ exited with 0 +++ [pid 4655] <... futex resumed>) = ? [pid 4655] +++ exited with 0 +++ [pid 4653] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4653, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4657 ./strace-static-x86_64: Process 4657 attached [pid 4657] set_robust_list(0x555556e316e0, 24) = 0 [pid 4657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4657] setpgid(0, 0) = 0 [pid 4657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4657] write(3, "1000", 4) = 4 [pid 4657] close(3) = 0 [pid 4657] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4657] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4657] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4657] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4658], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4658 [pid 4657] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4657] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4658 attached [pid 4658] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4658] memfd_create("syzkaller", 0) = 3 [pid 4658] ftruncate(3, 0) = 0 [pid 4658] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4658] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4658] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4658] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4658] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4657] <... futex resumed>) = 0 [pid 4657] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4657] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4658] <... futex resumed>) = 1 [pid 4658] pipe2([5, 6], 0) = 0 [pid 4658] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4657] <... futex resumed>) = 0 [pid 4657] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4657] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4658] <... futex resumed>) = 1 [pid 4658] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4658] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4657] <... futex resumed>) = 0 [pid 4657] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4657] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4658] <... futex resumed>) = 1 [pid 4658] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4657] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4657] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4657] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4657] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4657] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4657] clone(child_stack=0x7fbc2b5fd2f0, 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 4659 attached , parent_tid=[4659], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4659 [pid 4657] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4657] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4659] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4659] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4658] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4659] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4658] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4658] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4659] <... futex resumed>) = 1 [pid 4657] <... futex resumed>) = 0 [pid 4659] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4657] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4658] <... futex resumed>) = 0 [pid 4657] <... futex resumed>) = 1 [pid 4658] read(5, [pid 4657] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4658] <... read resumed>NULL, 0) = 0 [pid 4658] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4657] <... futex resumed>) = 0 [pid 4658] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4657] exit_group(0 [pid 4659] <... futex resumed>) = ? [pid 4658] <... futex resumed>) = ? [pid 4657] <... exit_group resumed>) = ? [pid 4659] +++ exited with 0 +++ [pid 4658] +++ exited with 0 +++ [pid 4657] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4657, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4661 ./strace-static-x86_64: Process 4661 attached [pid 4661] set_robust_list(0x555556e316e0, 24) = 0 [pid 4661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4661] setpgid(0, 0) = 0 [pid 4661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4661] write(3, "1000", 4) = 4 [pid 4661] close(3) = 0 [pid 4661] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4661] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4661] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4661] clone(child_stack=0x7fbc2b61e2f0, 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 4662 attached , parent_tid=[4662], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4662 [pid 4662] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4662] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4661] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4662] <... futex resumed>) = 0 [pid 4661] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4662] memfd_create("syzkaller", 0) = 3 [pid 4662] ftruncate(3, 0) = 0 [pid 4662] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4662] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4662] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4662] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4662] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4661] <... futex resumed>) = 0 [pid 4662] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4661] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4661] <... futex resumed>) = 0 [pid 4662] pipe2( [pid 4661] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4662] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4662] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4661] <... futex resumed>) = 0 [pid 4662] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4661] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4661] <... futex resumed>) = 0 [pid 4662] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4661] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4662] <... write resumed>) = 64568 [pid 4662] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4661] <... futex resumed>) = 0 [pid 4662] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4661] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4661] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4662] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4661] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4661] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4661] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4661] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4661] clone(child_stack=0x7fbc2b5fd2f0, 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 4663 attached [pid 4663] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4661] <... clone resumed>, parent_tid=[4663], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4663 [pid 4661] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4661] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4663] <... set_robust_list resumed>) = 0 [pid 4663] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4662] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4663] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4662] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4663] <... futex resumed>) = 1 [pid 4662] <... futex resumed>) = 0 [pid 4663] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4662] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4661] <... futex resumed>) = 0 [pid 4661] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4662] <... futex resumed>) = 0 [pid 4661] <... futex resumed>) = 1 [pid 4662] read(5, [pid 4661] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4662] <... read resumed>NULL, 0) = 0 [pid 4662] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4661] <... futex resumed>) = 0 [pid 4662] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4661] exit_group(0 [pid 4663] <... futex resumed>) = ? [pid 4662] <... futex resumed>) = ? [pid 4661] <... exit_group resumed>) = ? [pid 4663] +++ exited with 0 +++ [pid 4662] +++ exited with 0 +++ [pid 4661] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4661, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4664 attached , child_tidptr=0x555556e316d0) = 4664 [pid 4664] set_robust_list(0x555556e316e0, 24) = 0 [pid 4664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4664] setpgid(0, 0) = 0 [pid 4664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4664] write(3, "1000", 4) = 4 [pid 4664] close(3) = 0 [pid 4664] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4664] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4664] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4664] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4665], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4665 [pid 4664] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4664] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4665 attached [pid 4665] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4665] memfd_create("syzkaller", 0) = 3 [pid 4665] ftruncate(3, 0) = 0 [pid 4665] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4665] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4665] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4665] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4665] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4664] <... futex resumed>) = 0 [pid 4664] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4664] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4665] <... futex resumed>) = 1 [pid 4665] pipe2([5, 6], 0) = 0 [pid 4665] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4664] <... futex resumed>) = 0 [pid 4664] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4664] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4665] <... futex resumed>) = 1 [pid 4665] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4665] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4664] <... futex resumed>) = 0 [pid 4664] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4664] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4665] <... futex resumed>) = 1 [pid 4665] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4664] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4664] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4664] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4664] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4664] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4666], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4666 [pid 4664] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4664] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4666 attached [pid 4666] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4666] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4665] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4665] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4665] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4666] <... write resumed>) = 8 [pid 4666] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4664] <... futex resumed>) = 0 [pid 4664] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4665] <... futex resumed>) = 0 [pid 4664] <... futex resumed>) = 1 [pid 4665] read(5, [pid 4664] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4665] <... read resumed>NULL, 0) = 0 [pid 4665] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4664] <... futex resumed>) = 0 [pid 4665] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4664] exit_group(0 [pid 4665] <... futex resumed>) = ? [pid 4664] <... exit_group resumed>) = ? [pid 4665] +++ exited with 0 +++ [pid 4666] <... futex resumed>) = ? [pid 4666] +++ exited with 0 +++ [pid 4664] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4664, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4667 ./strace-static-x86_64: Process 4667 attached [pid 4667] set_robust_list(0x555556e316e0, 24) = 0 [pid 4667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4667] setpgid(0, 0) = 0 [pid 4667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4667] write(3, "1000", 4) = 4 [pid 4667] close(3) = 0 [pid 4667] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4667] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4667] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4667] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4668], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4668 ./strace-static-x86_64: Process 4668 attached [pid 4667] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4667] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 4668] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4668] memfd_create("syzkaller", 0) = 3 [pid 4668] ftruncate(3, 0) = 0 [pid 4668] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4668] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4668] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4668] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4668] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4667] <... futex resumed>) = 0 [pid 4667] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4667] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4668] pipe2([5, 6], 0) = 0 [pid 4668] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4667] <... futex resumed>) = 0 [pid 4667] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4667] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4668] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4668] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4667] <... futex resumed>) = 0 [pid 4667] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4668] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4667] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4667] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4667] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4667] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4667] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4669], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4669 [pid 4667] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4667] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4669 attached [pid 4669] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4669] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4668] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4668] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4668] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4669] <... write resumed>) = 8 [pid 4669] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4667] <... futex resumed>) = 0 [pid 4667] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4668] <... futex resumed>) = 0 [pid 4667] <... futex resumed>) = 1 [pid 4668] read(5, [pid 4667] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4668] <... read resumed>NULL, 0) = 0 [pid 4668] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4667] <... futex resumed>) = 0 [pid 4668] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4667] exit_group(0 [pid 4668] <... futex resumed>) = ? [pid 4667] <... exit_group resumed>) = ? [pid 4668] +++ exited with 0 +++ [pid 4669] <... futex resumed>) = ? [pid 4669] +++ exited with 0 +++ [pid 4667] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4667, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4670 ./strace-static-x86_64: Process 4670 attached [pid 4670] set_robust_list(0x555556e316e0, 24) = 0 [pid 4670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4670] setpgid(0, 0) = 0 [pid 4670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4670] write(3, "1000", 4) = 4 [pid 4670] close(3) = 0 [pid 4670] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4670] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4670] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4670] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4671], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4671 [pid 4670] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4670] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4671 attached [pid 4671] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4671] memfd_create("syzkaller", 0) = 3 [pid 4671] ftruncate(3, 0) = 0 [pid 4671] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4671] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4671] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4671] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4671] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4670] <... futex resumed>) = 0 [pid 4670] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4670] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4671] <... futex resumed>) = 1 [pid 4671] pipe2([5, 6], 0) = 0 [pid 4671] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4670] <... futex resumed>) = 0 [pid 4670] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4670] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4671] <... futex resumed>) = 1 [pid 4671] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4671] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4670] <... futex resumed>) = 0 [pid 4670] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4670] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4671] <... futex resumed>) = 1 [pid 4671] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4670] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4670] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4670] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4670] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4670] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4670] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4672], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4672 [pid 4670] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4670] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4672 attached [pid 4672] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4672] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4672] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4670] <... futex resumed>) = 0 [pid 4670] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4671] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4670] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4672] <... futex resumed>) = 1 [pid 4671] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4672] read(5, NULL, 0) = 0 [pid 4672] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4670] <... futex resumed>) = 0 [pid 4670] exit_group(0) = ? [pid 4672] <... futex resumed>) = ? [pid 4672] +++ exited with 0 +++ [pid 4671] <... futex resumed>) = ? [pid 4671] +++ exited with 0 +++ [pid 4670] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4670, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4674 ./strace-static-x86_64: Process 4674 attached [pid 4674] set_robust_list(0x555556e316e0, 24) = 0 [pid 4674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4674] setpgid(0, 0) = 0 [pid 4674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4674] write(3, "1000", 4) = 4 [pid 4674] close(3) = 0 [pid 4674] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4674] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4674] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4674] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4675], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4675 [pid 4674] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4674] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4675 attached [pid 4675] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4675] memfd_create("syzkaller", 0) = 3 [pid 4675] ftruncate(3, 0) = 0 [pid 4675] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4675] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4675] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4675] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4675] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4674] <... futex resumed>) = 0 [pid 4674] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4674] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4675] <... futex resumed>) = 1 [pid 4675] pipe2([5, 6], 0) = 0 [pid 4675] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4674] <... futex resumed>) = 0 [pid 4674] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4674] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4675] <... futex resumed>) = 1 [pid 4675] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4675] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4674] <... futex resumed>) = 0 [pid 4674] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4674] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4675] <... futex resumed>) = 1 [pid 4675] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4674] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4674] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4674] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4674] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4674] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4676], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4676 [pid 4674] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4674] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4676 attached [pid 4676] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4676] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4675] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4675] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4675] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4676] <... write resumed>) = 8 [pid 4676] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4674] <... futex resumed>) = 0 [pid 4674] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4675] <... futex resumed>) = 0 [pid 4674] <... futex resumed>) = 1 [pid 4675] read(5, [pid 4674] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4675] <... read resumed>NULL, 0) = 0 [pid 4675] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4674] <... futex resumed>) = 0 [pid 4675] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4674] exit_group(0 [pid 4675] <... futex resumed>) = ? [pid 4674] <... exit_group resumed>) = ? [pid 4675] +++ exited with 0 +++ [pid 4676] <... futex resumed>) = ? [pid 4676] +++ exited with 0 +++ [pid 4674] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4674, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4677 ./strace-static-x86_64: Process 4677 attached [pid 4677] set_robust_list(0x555556e316e0, 24) = 0 [pid 4677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4677] setpgid(0, 0) = 0 [pid 4677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4677] write(3, "1000", 4) = 4 [pid 4677] close(3) = 0 [pid 4677] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4677] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4677] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4677] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4678], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4678 [pid 4677] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4677] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4678 attached [pid 4678] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4678] memfd_create("syzkaller", 0) = 3 [pid 4678] ftruncate(3, 0) = 0 [pid 4678] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4678] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4678] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4678] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4678] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4677] <... futex resumed>) = 0 [pid 4678] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4677] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4678] <... futex resumed>) = 0 [pid 4678] pipe2( [pid 4677] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4678] <... pipe2 resumed>[5, 6], 0) = 0 [pid 4678] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4677] <... futex resumed>) = 0 [pid 4678] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4677] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4678] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4677] <... futex resumed>) = 0 [pid 4678] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568 [pid 4677] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4678] <... write resumed>) = 64568 [pid 4678] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4677] <... futex resumed>) = 0 [pid 4677] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4678] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4677] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4677] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4677] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4677] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4677] clone(child_stack=0x7fbc2b5fd2f0, 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 4679 attached , parent_tid=[4679], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4679 [pid 4679] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4679] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4677] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4677] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4679] <... futex resumed>) = 0 [pid 4679] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4678] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4678] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4678] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4679] <... write resumed>) = 8 [pid 4679] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4677] <... futex resumed>) = 0 [pid 4677] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4678] <... futex resumed>) = 0 [pid 4677] <... futex resumed>) = 1 [pid 4678] read(5, [pid 4677] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4678] <... read resumed>NULL, 0) = 0 [pid 4678] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4677] <... futex resumed>) = 0 [pid 4678] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4677] exit_group(0 [pid 4678] <... futex resumed>) = ? [pid 4677] <... exit_group resumed>) = ? [pid 4678] +++ exited with 0 +++ [pid 4679] <... futex resumed>) = ? [pid 4679] +++ exited with 0 +++ [pid 4677] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4677, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4680 ./strace-static-x86_64: Process 4680 attached [pid 4680] set_robust_list(0x555556e316e0, 24) = 0 [pid 4680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4680] setpgid(0, 0) = 0 [pid 4680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4680] write(3, "1000", 4) = 4 [pid 4680] close(3) = 0 [pid 4680] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4680] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4680] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4680] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4681], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4681 [pid 4680] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4680] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4681 attached [pid 4681] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4681] memfd_create("syzkaller", 0) = 3 [pid 4681] ftruncate(3, 0) = 0 [pid 4681] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4681] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4681] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4681] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4681] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4680] <... futex resumed>) = 0 [pid 4680] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4680] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4681] <... futex resumed>) = 1 [pid 4681] pipe2([5, 6], 0) = 0 [pid 4681] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4680] <... futex resumed>) = 0 [pid 4680] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4680] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4681] <... futex resumed>) = 1 [pid 4681] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4681] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4680] <... futex resumed>) = 0 [pid 4680] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4680] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4681] <... futex resumed>) = 1 [pid 4681] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4680] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4680] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4680] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4680] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4680] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4680] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4682], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4682 [pid 4680] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4680] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4682 attached [pid 4682] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4682] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4681] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4681] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4681] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4682] <... write resumed>) = 8 [pid 4682] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4680] <... futex resumed>) = 0 [pid 4680] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4681] <... futex resumed>) = 0 [pid 4680] <... futex resumed>) = 1 [pid 4681] read(5, [pid 4680] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4681] <... read resumed>NULL, 0) = 0 [pid 4681] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4680] <... futex resumed>) = 0 [pid 4681] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4680] exit_group(0 [pid 4681] <... futex resumed>) = ? [pid 4680] <... exit_group resumed>) = ? [pid 4681] +++ exited with 0 +++ [pid 4682] <... futex resumed>) = ? [pid 4682] +++ exited with 0 +++ [pid 4680] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4680, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4683 ./strace-static-x86_64: Process 4683 attached [pid 4683] set_robust_list(0x555556e316e0, 24) = 0 [pid 4683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4683] setpgid(0, 0) = 0 [pid 4683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4683] write(3, "1000", 4) = 4 [pid 4683] close(3) = 0 [pid 4683] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4683] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4683] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4683] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4684], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4684 [pid 4683] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4683] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4684 attached [pid 4684] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4684] memfd_create("syzkaller", 0) = 3 [pid 4684] ftruncate(3, 0) = 0 [pid 4684] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4684] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4684] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4684] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4684] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4683] <... futex resumed>) = 0 [pid 4683] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4684] <... futex resumed>) = 1 [pid 4683] <... futex resumed>) = 0 [pid 4683] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4684] pipe2([5, 6], 0) = 0 [pid 4684] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4683] <... futex resumed>) = 0 [pid 4683] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4683] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4684] <... futex resumed>) = 1 [pid 4684] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4684] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4683] <... futex resumed>) = 0 [pid 4684] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4683] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4684] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 4683] <... futex resumed>) = 0 [pid 4684] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4683] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 4683] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4683] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4683] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4683] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4683] clone(child_stack=0x7fbc2b5fd2f0, 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 4685 attached , parent_tid=[4685], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4685 [pid 4685] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4683] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4685] <... set_robust_list resumed>) = 0 [pid 4683] <... futex resumed>) = 0 [pid 4685] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4683] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4685] <... write resumed>) = 8 [pid 4685] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4684] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4683] <... futex resumed>) = 0 [pid 4684] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4683] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4685] read(5, [pid 4684] <... futex resumed>) = 0 [pid 4683] <... futex resumed>) = 0 [pid 4684] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4683] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4685] <... read resumed>NULL, 0) = 0 [pid 4685] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4683] <... futex resumed>) = 0 [pid 4685] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4683] exit_group(0 [pid 4685] <... futex resumed>) = ? [pid 4684] <... futex resumed>) = ? [pid 4683] <... exit_group resumed>) = ? [pid 4685] +++ exited with 0 +++ [pid 4684] +++ exited with 0 +++ [pid 4683] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4683, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4686 ./strace-static-x86_64: Process 4686 attached [pid 4686] set_robust_list(0x555556e316e0, 24) = 0 [pid 4686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4686] setpgid(0, 0) = 0 [pid 4686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4686] write(3, "1000", 4) = 4 [pid 4686] close(3) = 0 [pid 4686] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4686] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4686] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4686] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4687], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4687 [pid 4686] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4686] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4687 attached [pid 4687] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4687] memfd_create("syzkaller", 0) = 3 [pid 4687] ftruncate(3, 0) = 0 [pid 4687] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4687] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4687] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4687] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4687] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4686] <... futex resumed>) = 0 [pid 4686] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4686] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4687] <... futex resumed>) = 1 [pid 4687] pipe2([5, 6], 0) = 0 [pid 4687] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4686] <... futex resumed>) = 0 [pid 4686] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4686] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4687] <... futex resumed>) = 1 [pid 4687] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4687] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4686] <... futex resumed>) = 0 [pid 4686] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4686] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4687] <... futex resumed>) = 1 [pid 4687] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4686] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4686] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4686] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4686] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4686] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4686] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4686] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4688], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4688 [pid 4686] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4686] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4688 attached [pid 4688] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4688] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4688] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4686] <... futex resumed>) = 0 [pid 4686] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4686] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4688] <... futex resumed>) = 1 [pid 4688] read(5, NULL, 0) = 0 [pid 4688] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4686] <... futex resumed>) = 0 [pid 4688] <... futex resumed>) = 1 [pid 4688] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4687] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4687] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4687] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4686] exit_group(0) = ? [pid 4687] <... futex resumed>) = ? [pid 4687] +++ exited with 0 +++ [pid 4688] <... futex resumed>) = ? [pid 4688] +++ exited with 0 +++ [pid 4686] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4686, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4689 ./strace-static-x86_64: Process 4689 attached [pid 4689] set_robust_list(0x555556e316e0, 24) = 0 [pid 4689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4689] setpgid(0, 0) = 0 [pid 4689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4689] write(3, "1000", 4) = 4 [pid 4689] close(3) = 0 [pid 4689] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4689] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4689] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4689] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4690], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4690 [pid 4689] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4689] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4690 attached [pid 4690] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4690] memfd_create("syzkaller", 0) = 3 [pid 4690] ftruncate(3, 0) = 0 [pid 4690] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4690] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4690] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4690] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4690] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4689] <... futex resumed>) = 0 [pid 4689] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4689] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4690] <... futex resumed>) = 1 [pid 4690] pipe2([5, 6], 0) = 0 [pid 4690] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4689] <... futex resumed>) = 0 [pid 4689] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4689] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4690] <... futex resumed>) = 1 [pid 4690] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4690] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4689] <... futex resumed>) = 0 [pid 4689] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4689] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4690] <... futex resumed>) = 1 [pid 4690] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4689] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4689] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4689] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4689] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4689] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4689] clone(child_stack=0x7fbc2b5fd2f0, 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 4691 attached , parent_tid=[4691], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4691 [pid 4691] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4689] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4691] <... set_robust_list resumed>) = 0 [pid 4691] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4689] <... futex resumed>) = 0 [pid 4689] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4690] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4690] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4691] <... write resumed>) = 8 [pid 4690] <... futex resumed>) = 0 [pid 4691] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4690] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4691] <... futex resumed>) = 1 [pid 4689] <... futex resumed>) = 0 [pid 4691] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4689] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4690] <... futex resumed>) = 0 [pid 4689] <... futex resumed>) = 1 [pid 4690] read(5, [pid 4689] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4690] <... read resumed>NULL, 0) = 0 [pid 4690] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4689] <... futex resumed>) = 0 [pid 4690] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4689] exit_group(0 [pid 4691] <... futex resumed>) = ? [pid 4690] <... futex resumed>) = ? [pid 4689] <... exit_group resumed>) = ? [pid 4690] +++ exited with 0 +++ [pid 4691] +++ exited with 0 +++ [pid 4689] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4689, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4692 ./strace-static-x86_64: Process 4692 attached [pid 4692] set_robust_list(0x555556e316e0, 24) = 0 [pid 4692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4692] setpgid(0, 0) = 0 [pid 4692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4692] write(3, "1000", 4) = 4 [pid 4692] close(3) = 0 [pid 4692] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4692] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4692] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4692] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4693], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4693 [pid 4692] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4692] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4693 attached [pid 4693] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4693] memfd_create("syzkaller", 0) = 3 [pid 4693] ftruncate(3, 0) = 0 [pid 4693] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4693] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4693] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4693] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4693] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4692] <... futex resumed>) = 0 [pid 4692] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4692] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4693] <... futex resumed>) = 1 [pid 4693] pipe2([5, 6], 0) = 0 [pid 4693] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4692] <... futex resumed>) = 0 [pid 4692] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4692] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4693] <... futex resumed>) = 1 [pid 4693] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4693] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4692] <... futex resumed>) = 0 [pid 4692] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4692] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4693] <... futex resumed>) = 1 [pid 4693] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4692] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4692] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4692] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4692] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4692] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4695], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4695 [pid 4692] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4692] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4695 attached [pid 4695] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4695] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4693] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4693] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4693] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4695] <... write resumed>) = 8 [pid 4695] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4692] <... futex resumed>) = 0 [pid 4692] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4693] <... futex resumed>) = 0 [pid 4692] <... futex resumed>) = 1 [pid 4693] read(5, [pid 4692] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4693] <... read resumed>NULL, 0) = 0 [pid 4693] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4692] <... futex resumed>) = 0 [pid 4693] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4692] exit_group(0 [pid 4693] <... futex resumed>) = ? [pid 4692] <... exit_group resumed>) = ? [pid 4693] +++ exited with 0 +++ [pid 4695] <... futex resumed>) = ? [pid 4695] +++ exited with 0 +++ [pid 4692] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4692, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4696 ./strace-static-x86_64: Process 4696 attached [pid 4696] set_robust_list(0x555556e316e0, 24) = 0 [pid 4696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4696] setpgid(0, 0) = 0 [pid 4696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4696] write(3, "1000", 4) = 4 [pid 4696] close(3) = 0 [pid 4696] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4696] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4696] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4696] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4697], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4697 [pid 4696] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4696] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4697 attached [pid 4697] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4697] memfd_create("syzkaller", 0) = 3 [pid 4697] ftruncate(3, 0) = 0 [pid 4697] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4697] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4697] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4697] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4697] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4697] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4696] <... futex resumed>) = 0 [pid 4696] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4696] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4697] <... futex resumed>) = 0 [pid 4697] pipe2([5, 6], 0) = 0 [pid 4697] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4696] <... futex resumed>) = 0 [pid 4696] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4696] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4697] <... futex resumed>) = 1 [pid 4697] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4697] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4696] <... futex resumed>) = 0 [pid 4696] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4696] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4697] <... futex resumed>) = 1 [pid 4697] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4696] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4696] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4696] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4696] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4696] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4696] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4696] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4698], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4698 [pid 4696] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4696] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4698 attached [pid 4698] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4698] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8 [pid 4697] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4697] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4697] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4698] <... write resumed>) = 8 [pid 4698] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4696] <... futex resumed>) = 0 [pid 4696] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4697] <... futex resumed>) = 0 [pid 4696] <... futex resumed>) = 1 [pid 4697] read(5, [pid 4696] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4697] <... read resumed>NULL, 0) = 0 [pid 4697] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4696] <... futex resumed>) = 0 [pid 4697] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4696] exit_group(0 [pid 4697] <... futex resumed>) = ? [pid 4696] <... exit_group resumed>) = ? [pid 4697] +++ exited with 0 +++ [pid 4698] <... futex resumed>) = ? [pid 4698] +++ exited with 0 +++ [pid 4696] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4696, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4700 ./strace-static-x86_64: Process 4700 attached [pid 4700] set_robust_list(0x555556e316e0, 24) = 0 [pid 4700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4700] setpgid(0, 0) = 0 [pid 4700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4700] write(3, "1000", 4) = 4 [pid 4700] close(3) = 0 [pid 4700] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4700] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4700] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4700] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4701], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4701 [pid 4700] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4700] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4701 attached [pid 4701] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4701] memfd_create("syzkaller", 0) = 3 [pid 4701] ftruncate(3, 0) = 0 [pid 4701] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4701] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4701] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4701] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4701] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4700] <... futex resumed>) = 0 [pid 4700] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4700] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4701] <... futex resumed>) = 1 [pid 4701] pipe2([5, 6], 0) = 0 [pid 4701] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4700] <... futex resumed>) = 0 [pid 4700] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4700] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4701] <... futex resumed>) = 1 [pid 4701] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4701] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4700] <... futex resumed>) = 0 [pid 4700] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4700] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4701] <... futex resumed>) = 1 [pid 4701] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4700] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4700] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4700] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4700] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4700] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4700] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4700] clone(child_stack=0x7fbc2b5fd2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4702], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4702 [pid 4700] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4700] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 4702 attached [pid 4702] set_robust_list(0x7fbc2b5fd9e0, 24) = 0 [pid 4702] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4702] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4700] <... futex resumed>) = 0 [pid 4700] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4700] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4702] <... futex resumed>) = 1 [pid 4702] read(5, NULL, 0) = 0 [pid 4702] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000 [pid 4700] <... futex resumed>) = 0 [pid 4702] <... futex resumed>) = 1 [pid 4702] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4701] <... mount resumed>) = -1 EINVAL (Invalid argument) [pid 4701] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4701] futex(0x7fbc2b6f64a8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4700] exit_group(0 [pid 4702] <... futex resumed>) = ? [pid 4701] <... futex resumed>) = ? [pid 4700] <... exit_group resumed>) = ? [pid 4702] +++ exited with 0 +++ [pid 4701] +++ exited with 0 +++ [pid 4700] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4700, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556e316d0) = 4703 ./strace-static-x86_64: Process 4703 attached [pid 4703] set_robust_list(0x555556e316e0, 24) = 0 [pid 4703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4703] setpgid(0, 0) = 0 [pid 4703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4703] write(3, "1000", 4) = 4 [pid 4703] close(3) = 0 [pid 4703] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4703] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5fe000 [pid 4703] mprotect(0x7fbc2b5ff000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4703] clone(child_stack=0x7fbc2b61e2f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[4704], tls=0x7fbc2b61e700, child_tidptr=0x7fbc2b61e9d0) = 4704 [pid 4703] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4703] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 4704 attached [pid 4704] set_robust_list(0x7fbc2b61e9e0, 24) = 0 [pid 4704] memfd_create("syzkaller", 0) = 3 [pid 4704] ftruncate(3, 0) = 0 [pid 4704] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4704] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4704] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 4704] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 4704] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4703] <... futex resumed>) = 0 [pid 4703] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4703] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4704] <... futex resumed>) = 1 [pid 4704] pipe2([5, 6], 0) = 0 [pid 4704] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4703] <... futex resumed>) = 0 [pid 4703] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4703] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4704] <... futex resumed>) = 1 [pid 4704] write(6, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 64568) = 64568 [pid 4704] futex(0x7fbc2b6f64ac, FUTEX_WAKE_PRIVATE, 1000000 [pid 4703] <... futex resumed>) = 0 [pid 4703] futex(0x7fbc2b6f64a8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4703] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4704] <... futex resumed>) = 1 [pid 4704] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000005,wfdno=0x0000000000000006," [pid 4703] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 4703] futex(0x7fbc2b6f64ac, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 4703] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4703] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbc2b5dd000 [pid 4703] mprotect(0x7fbc2b5de000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 4703] clone(child_stack=0x7fbc2b5fd2f0, 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 4705 attached , parent_tid=[4705], tls=0x7fbc2b5fd700, child_tidptr=0x7fbc2b5fd9d0) = 4705 [pid 4705] set_robust_list(0x7fbc2b5fd9e0, 24 [pid 4703] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 4703] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4705] <... set_robust_list resumed>) = 0 [pid 4705] write(6, "\x08\x00\x00\x00\x35\x00\x00\x00", 8) = 8 [pid 4705] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4705] futex(0x7fbc2b6f64b8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 4703] <... futex resumed>) = 0 [pid 4703] futex(0x7fbc2b6f64b8, FUTEX_WAKE_PRIVATE, 1000000 [pid 4705] <... futex resumed>) = 0 [pid 4703] <... futex resumed>) = 1 [pid 4705] read(5, [pid 4703] futex(0x7fbc2b6f64bc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 4705] <... read resumed>NULL, 0) = 0 [pid 4705] futex(0x7fbc2b6f64bc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 4703] <... futex resumed>) = 0 [ 221.274487][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 144s! [kworker/u4:0:9] [ 221.282763][ C0] Modules linked in: [ 221.286721][ C0] irq event stamp: 42908 [ 221.291107][ C0] hardirqs last enabled at (42907): [] _raw_spin_unlock_irq+0x1f/0x40 [ 221.300999][ C0] hardirqs last disabled at (42908): [] __schedule+0x28d0/0x5270 [ 221.310534][ C0] softirqs last enabled at (40456): [] __irq_exit_rcu+0x123/0x180 [ 221.319975][ C0] softirqs last disabled at (40451): [] __irq_exit_rcu+0x123/0x180 [ 221.330198][ C0] CPU: 0 PID: 9 Comm: kworker/u4:0 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0 [ 221.339960][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 221.350099][ C0] Workqueue: events_unbound toggle_allocation_gate [ 221.356587][ C0] RIP: 0010:smp_call_function_many_cond+0x5fe/0x1420 [ 221.363782][ C0] Code: 89 ee e8 95 a7 0a 00 85 ed 74 48 48 8b 44 24 08 49 89 c4 83 e0 07 49 c1 ec 03 48 89 c5 4d 01 f4 83 c5 03 e8 b4 aa 0a 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 7a 0b 00 00 8b 43 08 31 [ 221.383981][ C0] RSP: 0018:ffffc900000e7968 EFLAGS: 00000293 [ 221.390108][ C0] RAX: 0000000000000000 RBX: ffff8880b9b402c0 RCX: 0000000000000000 [ 221.398059][ C0] RDX: ffff888011a68000 RSI: ffffffff81709f8c RDI: 0000000000000005 [ 221.406017][ C0] RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 [ 221.414150][ C0] R10: 0000000000000001 R11: 0000000000000001 R12: ffffed1017368059 [ 221.422203][ C0] R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000001 [ 221.430156][ C0] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 221.439238][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 221.445885][ C0] CR2: 00007fbc2b6b6b00 CR3: 000000000bc8e000 CR4: 0000000000350ef0 [ 221.453918][ C0] Call Trace: [ 221.457170][ C0] [ 221.460081][ C0] ? optimize_nops+0x2d0/0x2d0 [ 221.464824][ C0] ? smp_call_on_cpu+0x270/0x270 [ 221.469736][ C0] ? text_poke_memset+0x60/0x60 [ 221.474562][ C0] ? trace_contention_end+0xea/0x150 [ 221.479825][ C0] ? optimize_nops+0x2d0/0x2d0 [ 221.484569][ C0] on_each_cpu_cond_mask+0x56/0xa0 [ 221.489654][ C0] text_poke_bp_batch+0x22e/0x6b0 [ 221.494740][ C0] ? mutex_lock_io_nested+0x1190/0x1190 [ 221.500279][ C0] ? kmem_cache_alloc_bulk+0x184/0x750 [ 221.505718][ C0] ? do_sync_core+0x20/0x20 [ 221.510196][ C0] ? arch_jump_label_transform_queue+0xa0/0x100 [ 221.516415][ C0] ? __jump_label_update+0x296/0x410 [ 221.521674][ C0] text_poke_finish+0x16/0x30 [ 221.526322][ C0] arch_jump_label_transform_apply+0x13/0x20 [ 221.532276][ C0] jump_label_update+0x32f/0x410 [ 221.537374][ C0] static_key_enable_cpuslocked+0x1b1/0x260 [ 221.543728][ C0] static_key_enable+0x16/0x20 [ 221.548560][ C0] toggle_allocation_gate+0x100/0x390 [ 221.553910][ C0] ? lock_release+0x780/0x780 [ 221.558560][ C0] ? wake_up_kfence_timer+0x20/0x20 [ 221.563741][ C0] ? finish_task_switch.isra.0+0x2bf/0xc70 [ 221.569521][ C0] ? read_word_at_a_time+0xe/0x20 [ 221.574517][ C0] ? strscpy+0xa1/0x2a0 [ 221.578647][ C0] process_one_work+0x991/0x1610 [ 221.583565][ C0] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 221.588912][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 221.593824][ C0] worker_thread+0x665/0x1080 [ 221.598476][ C0] ? process_one_work+0x1610/0x1610 [ 221.603648][ C0] kthread+0x2e4/0x3a0 [ 221.607687][ C0] ? kthread_complete_and_exit+0x40/0x40 [ 221.613294][ C0] ret_from_fork+0x1f/0x30 [ 221.617777][ C0] [ 221.620767][ C0] Sending NMI from CPU 0 to CPUs 1: [ 221.625985][ C1] NMI backtrace for cpu 1 [ 221.625995][ C1] CPU: 1 PID: 23 Comm: kworker/1:0 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0 [ 221.626012][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 221.626022][ C1] Workqueue: events p9_read_work [ 221.626045][ C1] RIP: 0010:kvm_wait+0xc1/0x100 [ 221.626082][ C1] Code: f4 48 83 c4 10 c3 89 74 24 0c 48 89 3c 24 e8 56 db 4c 00 8b 74 24 0c 48 8b 3c 24 e9 6a ff ff ff eb 07 0f 00 2d 70 de b4 08 f4 bf 89 74 24 0c 48 89 3c 24 e8 00 cc 93 00 8b 74 24 0c 48 8b 3c [ 221.626096][ C1] RSP: 0018:ffffc900001d7998 EFLAGS: 00000046 [ 221.626107][ C1] RAX: 0000000000000003 RBX: 0000000000000000 RCX: dffffc0000000000 [ 221.626117][ C1] RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffff888022d5dc00 [ 221.626126][ C1] RBP: ffff888022d5dc00 R08: 0000000000000001 R09: ffff888022d5dc00 [ 221.626135][ C1] R10: ffffed10045abb80 R11: 0000000000000001 R12: 0000000000000000 [ 221.626145][ C1] R13: ffffed10045abb80 R14: 0000000000000001 R15: ffff8880b9b3ae00 [ 221.626157][ C1] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 221.626172][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 221.626182][ C1] CR2: 00007fbc2b5fd718 CR3: 000000006fa14000 CR4: 0000000000350ee0 [ 221.626191][ C1] Call Trace: [ 221.626196][ C1] [ 221.626202][ C1] __pv_queued_spin_lock_slowpath+0x8c7/0xb50 [ 221.626226][ C1] ? .slowpath+0xe/0xe [ 221.626241][ C1] ? rcu_read_lock_sched_held+0xd/0x70 [ 221.626265][ C1] ? lock_acquire+0x480/0x570 [ 221.626280][ C1] ? debug_locks_off+0x23/0x80 [ 221.626302][ C1] do_raw_spin_lock+0x200/0x2a0 [ 221.626319][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 221.626335][ C1] ? do_raw_spin_lock+0x120/0x2a0 [ 221.626352][ C1] _raw_spin_lock_irqsave+0x41/0x50 [ 221.626369][ C1] ? p9_req_put+0xc6/0x250 [ 221.626384][ C1] p9_req_put+0xc6/0x250 [ 221.626401][ C1] p9_conn_cancel+0x640/0x970 [ 221.626422][ C1] ? p9_fcall_fini+0xa0/0xa0 [ 221.626438][ C1] ? p9_fd_create_tcp+0x510/0x510 [ 221.626461][ C1] p9_read_work+0x514/0x10b0 [ 221.626481][ C1] ? do_raw_spin_lock+0x120/0x2a0 [ 221.626497][ C1] ? p9_conn_cancel+0x970/0x970 [ 221.626516][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 221.626535][ C1] process_one_work+0x991/0x1610 [ 221.626557][ C1] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 221.626578][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 221.626597][ C1] worker_thread+0x665/0x1080 [ 221.626619][ C1] ? process_one_work+0x1610/0x1610 [ 221.626639][ C1] kthread+0x2e4/0x3a0 [ 221.626655][ C1] ? kthread_complete_and_exit+0x40/0x40 [ 221.626673][ C1] ret_from_fork+0x1f/0x30 [ 221.626697][ C1] [ 221.626951][ C0] Kernel panic - not syncing: softlockup: hung tasks [ 221.891899][ C0] CPU: 0 PID: 9 Comm: kworker/u4:0 Tainted: G L 6.0.0-syzkaller-09589-g55be6084c8e0 #0 [ 221.902976][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 221.913008][ C0] Workqueue: events_unbound toggle_allocation_gate [ 221.919506][ C0] Call Trace: [ 221.922762][ C0] [ 221.925758][ C0] dump_stack_lvl+0xcd/0x134 [ 221.930331][ C0] panic+0x2c8/0x622 [ 221.934309][ C0] ? panic_print_sys_info.part.0+0x10b/0x10b [ 221.940271][ C0] ? irq_work_claim+0x76/0x90 [ 221.944927][ C0] ? lapic_can_unplug_cpu+0x80/0x80 [ 221.950102][ C0] ? irq_work_queue+0x29/0x80 [ 221.954753][ C0] ? watchdog_timer_fn.cold+0x5/0x25 [ 221.960102][ C0] watchdog_timer_fn.cold+0x16/0x25 [ 221.965362][ C0] ? softlockup_fn+0xa0/0xa0 [ 221.969930][ C0] __hrtimer_run_queues+0x1c0/0xe40 [ 221.975124][ C0] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 221.981081][ C0] ? ktime_get_update_offsets_now+0x3eb/0x5c0 [ 221.987539][ C0] hrtimer_interrupt+0x31c/0x790 [ 221.992461][ C0] __sysvec_apic_timer_interrupt+0x146/0x530 [ 221.998419][ C0] sysvec_apic_timer_interrupt+0x8e/0xc0 [ 222.004033][ C0] [ 222.006946][ C0] [ 222.009855][ C0] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 222.015813][ C0] RIP: 0010:smp_call_function_many_cond+0x5fe/0x1420 [ 222.022467][ C0] Code: 89 ee e8 95 a7 0a 00 85 ed 74 48 48 8b 44 24 08 49 89 c4 83 e0 07 49 c1 ec 03 48 89 c5 4d 01 f4 83 c5 03 e8 b4 aa 0a 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 7a 0b 00 00 8b 43 08 31 [ 222.042062][ C0] RSP: 0018:ffffc900000e7968 EFLAGS: 00000293 [ 222.048108][ C0] RAX: 0000000000000000 RBX: ffff8880b9b402c0 RCX: 0000000000000000 [ 222.056140][ C0] RDX: ffff888011a68000 RSI: ffffffff81709f8c RDI: 0000000000000005 [ 222.064112][ C0] RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 [ 222.072062][ C0] R10: 0000000000000001 R11: 0000000000000001 R12: ffffed1017368059 [ 222.080008][ C0] R13: 0000000000000001 R14: dffffc0000000000 R15: 0000000000000001 [ 222.088146][ C0] ? smp_call_function_many_cond+0x5fc/0x1420 [ 222.094199][ C0] ? smp_call_function_many_cond+0x5fc/0x1420 [ 222.100240][ C0] ? optimize_nops+0x2d0/0x2d0 [ 222.104976][ C0] ? smp_call_on_cpu+0x270/0x270 [ 222.109886][ C0] ? text_poke_memset+0x60/0x60 [ 222.114706][ C0] ? trace_contention_end+0xea/0x150 [ 222.119967][ C0] ? optimize_nops+0x2d0/0x2d0 [ 222.124704][ C0] on_each_cpu_cond_mask+0x56/0xa0 [ 222.129791][ C0] text_poke_bp_batch+0x22e/0x6b0 [ 222.134792][ C0] ? mutex_lock_io_nested+0x1190/0x1190 [ 222.140319][ C0] ? kmem_cache_alloc_bulk+0x184/0x750 [ 222.145752][ C0] ? do_sync_core+0x20/0x20 [ 222.150238][ C0] ? arch_jump_label_transform_queue+0xa0/0x100 [ 222.156471][ C0] ? __jump_label_update+0x296/0x410 [ 222.161741][ C0] text_poke_finish+0x16/0x30 [ 222.166397][ C0] arch_jump_label_transform_apply+0x13/0x20 [ 222.172618][ C0] jump_label_update+0x32f/0x410 [ 222.177552][ C0] static_key_enable_cpuslocked+0x1b1/0x260 [ 222.183517][ C0] static_key_enable+0x16/0x20 [ 222.188263][ C0] toggle_allocation_gate+0x100/0x390 [ 222.193614][ C0] ? lock_release+0x780/0x780 [ 222.198266][ C0] ? wake_up_kfence_timer+0x20/0x20 [ 222.203611][ C0] ? finish_task_switch.isra.0+0x2bf/0xc70 [ 222.209404][ C0] ? read_word_at_a_time+0xe/0x20 [ 222.214414][ C0] ? strscpy+0xa1/0x2a0 [ 222.218545][ C0] process_one_work+0x991/0x1610 [ 222.223464][ C0] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 222.228814][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 222.233731][ C0] worker_thread+0x665/0x1080 [ 222.238387][ C0] ? process_one_work+0x1610/0x1610 [ 222.243558][ C0] kthread+0x2e4/0x3a0 [ 222.247603][ C0] ? kthread_complete_and_exit+0x40/0x40 [ 222.253208][ C0] ret_from_fork+0x1f/0x30 [ 222.257601][ C0] [ 223.334779][ C0] Shutting down cpus with NMI [ 223.340471][ C0] Kernel Offset: disabled [ 223.344812][ C0] Rebooting in 86400 seconds..