./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3341564379 <...> Warning: Permanently added '10.128.0.161' (ED25519) to the list of known hosts. execve("./syz-executor3341564379", ["./syz-executor3341564379"], 0x7ffce1665e60 /* 10 vars */) = 0 brk(NULL) = 0x55557157b000 brk(0x55557157bd00) = 0x55557157bd00 arch_prctl(ARCH_SET_FS, 0x55557157b380) = 0 set_tid_address(0x55557157b650) = 5865 set_robust_list(0x55557157b660, 24) = 0 rseq(0x55557157bca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3341564379", 4096) = 28 getrandom("\x10\xf8\x2f\x8e\xef\x97\xdd\xfe", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557157bd00 brk(0x55557159cd00) = 0x55557159cd00 brk(0x55557159d000) = 0x55557159d000 mprotect(0x7fae9d4e3000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557157b650) = 5866 ./strace-static-x86_64: Process 5866 attached [pid 5866] set_robust_list(0x55557157b660, 24) = 0 [pid 5866] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5866] getppid() = 0 [pid 5866] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5866] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5866] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5866] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5866] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5866] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5866] unshare(CLONE_NEWNS) = 0 [pid 5866] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5866] unshare(CLONE_NEWIPC) = 0 [pid 5866] unshare(CLONE_NEWCGROUP) = 0 [pid 5866] unshare(CLONE_NEWUTS) = 0 [pid 5866] unshare(CLONE_SYSVSEM) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "16777216", 8) = 8 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "536870912", 9) = 9 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "1024", 4) = 4 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "8192", 4) = 4 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "1024", 4) = 4 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "1024", 4) = 4 [pid 5866] close(3) = 0 [pid 5866] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5866] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5866] close(3) = 0 [pid 5866] getpid() = 1 [pid 5866] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5866] kill(-2, SIGKILL) = 0 [pid 5866] kill(2, SIGKILL) = 0 [pid 5866] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5866] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5866] getdents64(3, 0x55557157c6f0 /* 2 entries */, 32768) = 48 [pid 5866] getdents64(3, 0x55557157c6f0 /* 0 entries */, 32768) = 0 [pid 5866] close(3) = 0 [ 280.413203][ T5879] unregister_netdevice: waiting for vcan0 to become free. Usage count = 2