./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1714242752 <...> Warning: Permanently added '10.128.0.188' (ED25519) to the list of known hosts. execve("./syz-executor1714242752", ["./syz-executor1714242752"], 0x7ffcdf8284a0 /* 10 vars */) = 0 brk(NULL) = 0x555563ffe000 brk(0x555563ffed00) = 0x555563ffed00 arch_prctl(ARCH_SET_FS, 0x555563ffe380) = 0 set_tid_address(0x555563ffe650) = 5851 set_robust_list(0x555563ffe660, 24) = 0 rseq(0x555563ffeca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1714242752", 4096) = 28 getrandom("\x49\x3b\x03\xc1\xac\x83\xa9\xd6", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555563ffed00 brk(0x55556401fd00) = 0x55556401fd00 brk(0x555564020000) = 0x555564020000 mprotect(0x7f6d32607000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5852 attached [pid 5852] set_robust_list(0x555563ffe660, 24 [pid 5851] <... clone resumed>, child_tidptr=0x555563ffe650) = 5852 [pid 5852] <... set_robust_list resumed>) = 0 [pid 5852] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5852] getppid() = 0 [pid 5852] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5852] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5852] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5852] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5852] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5852] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5852] unshare(CLONE_NEWNS) = 0 [pid 5852] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5852] unshare(CLONE_NEWIPC) = 0 [pid 5852] unshare(CLONE_NEWCGROUP) = 0 [pid 5852] unshare(CLONE_NEWUTS) = 0 [pid 5852] unshare(CLONE_SYSVSEM) = 0 [pid 5852] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "16777216", 8) = 8 [pid 5852] close(3) = 0 [pid 5852] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "536870912", 9) = 9 [pid 5852] close(3) = 0 [pid 5852] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "1024", 4) = 4 [pid 5852] close(3) = 0 [pid 5852] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "8192", 4) = 4 [pid 5852] close(3) = 0 [pid 5852] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "1024", 4) = 4 [pid 5852] close(3) = 0 [pid 5852] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "1024", 4) = 4 [pid 5852] close(3) = 0 [pid 5852] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5852] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5852] close(3) = 0 [pid 5852] getpid() = 1 [pid 5852] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5852] kill(-2, SIGKILL) = 0 [pid 5852] kill(2, SIGKILL) = 0 [pid 5852] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5852] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5852] getdents64(3, 0x555563fff6f0 /* 2 entries */, 32768) = 48 [pid 5852] getdents64(3, 0x555563fff6f0 /* 0 entries */, 32768) = 0 [pid 5852] close(3) = 0 [ 81.826530][ T51] cfg80211: failed to load regulatory.db [ 211.252732][ T5860] unregister_netdevice: waiting for vcan0 to become free. Usage count = 2