// https://syzkaller.appspot.com/bug?id=c47ed0a4b977a008f22dd3431efd59987d2813fd // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms(void) { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } #define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off)) #define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len) \ *(type*)(addr) = \ htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | \ (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len)))) static bool write_file(const char* file, const char* what, ...) { char buf[1024]; va_list args; va_start(args, what); vsnprintf(buf, sizeof(buf), what, args); va_end(args); buf[sizeof(buf) - 1] = 0; int len = strlen(buf); int fd = open(file, O_WRONLY | O_CLOEXEC); if (fd == -1) return false; if (write(fd, buf, len) != len) { int err = errno; close(fd); errno = err; return false; } close(fd); return true; } static void kill_and_wait(int pid, int* status) { kill(-pid, SIGKILL); kill(pid, SIGKILL); for (int i = 0; i < 100; i++) { if (waitpid(-1, status, WNOHANG | __WALL) == pid) return; usleep(1000); } DIR* dir = opendir("/sys/fs/fuse/connections"); if (dir) { for (;;) { struct dirent* ent = readdir(dir); if (!ent) break; if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0) continue; char abort[300]; snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort", ent->d_name); int fd = open(abort, O_WRONLY); if (fd == -1) { continue; } if (write(fd, abort, 1) < 0) { } close(fd); } closedir(dir); } else { } while (waitpid(-1, status, __WALL) != pid) { } } static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); write_file("/proc/self/oom_score_adj", "1000"); } static void execute_one(void); #define WAIT_FLAGS __WALL static void loop(void) { int iter = 0; for (;; iter++) { int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { setup_test(); execute_one(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { sleep_ms(10); if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; if (current_time_ms() - start < 5000) continue; kill_and_wait(pid, &status); break; } } } uint64_t r[5] = {0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0xffffffffffffffff}; void execute_one(void) { intptr_t res = 0; if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } // openat$tun arguments: [ // fd: const = 0xffffffffffffff9c (8 bytes) // file: ptr[in, buffer] { // buffer: {2f 64 65 76 2f 6e 65 74 2f 74 75 6e 00} (length 0xd) // } // flags: open_flags = 0x0 (4 bytes) // mode: const = 0x0 (2 bytes) // ] // returns fd_tun memcpy((void*)0x200000000240, "/dev/net/tun\000", 13); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000240ul, /*flags=*/0, /*mode=*/0); if (res != -1) r[0] = res; // ioctl$TUNSETIFF arguments: [ // fd: fd_tun (resource) // cmd: const = 0x400454ca (4 bytes) // arg: ptr[in, ifreq_dev_t[devnames, flags[tun_setiff_flags, int16]]] { // ifreq_dev_t[devnames, flags[tun_setiff_flags, int16]] { // ifr_ifrn: buffer: {73 79 7a 6b 61 6c 6c 65 72 30 00 00 00 00 00 00} // (length 0x10) elem: tun_setiff_flags = 0x7101 (2 bytes) pad = 0x0 // (22 bytes) // } // } // ] memcpy((void*)0x200000000040, "syzkaller0\000\000\000\000\000\000", 16); *(uint16_t*)0x200000000050 = 0x7101; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x400454ca, /*arg=*/0x200000000040ul); // socket$unix arguments: [ // domain: const = 0x1 (8 bytes) // type: unix_socket_type = 0x5 (8 bytes) // proto: const = 0x0 (4 bytes) // ] // returns sock_unix res = syscall(__NR_socket, /*domain=*/1ul, /*type=SOCK_SEQPACKET*/ 5ul, /*proto=*/0); if (res != -1) r[1] = res; // ioctl$sock_SIOCGIFINDEX arguments: [ // fd: sock (resource) // cmd: const = 0x8933 (4 bytes) // arg: ptr[out, ifreq_dev_t[devnames, ifindex]] { // ifreq_dev_t[devnames, ifindex] { // ifr_ifrn: buffer: {73 79 7a 6b 61 6c 6c 65 72 30 00 00 00 00 00 00} // (length 0x10) elem: ifindex (resource) pad = 0x0 (20 bytes) // } // } // ] memcpy((void*)0x200000000100, "syzkaller0\000\000\000\000\000\000", 16); res = syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x8933, /*arg=*/0x200000000100ul); if (res != -1) r[2] = *(uint32_t*)0x200000000110; // socket arguments: [ // domain: socket_domain = 0x10 (8 bytes) // type: socket_type = 0x3 (8 bytes) // proto: int32 = 0x0 (4 bytes) // ] // returns sock res = syscall(__NR_socket, /*domain=AF_NETLINK*/ 0x10ul, /*type=SOCK_RAW*/ 3ul, /*proto=*/0); if (res != -1) r[3] = res; // sendmsg$nl_route_sched arguments: [ // fd: sock_nl_route (resource) // msg: ptr[in, msghdr_netlink[netlink_msg_route_sched]] { // msghdr_netlink[netlink_msg_route_sched] { // addr: nil // addrlen: len = 0x0 (4 bytes) // pad = 0x0 (4 bytes) // vec: ptr[in, iovec[in, netlink_msg_route_sched]] { // iovec[in, netlink_msg_route_sched] { // addr: ptr[in, netlink_msg_route_sched] { // union netlink_msg_route_sched { // newqdisc: netlink_msg_t[const[RTM_NEWQDISC, int16], // tcmsg[AF_UNSPEC], rtm_tca_policy] { // len: len = 0x88 (4 bytes) // type: const = 0x24 (2 bytes) // flags: netlink_msg_flags = 0xf0b (2 bytes) // seq: int32 = 0x70bd26 (4 bytes) // pid: int32 = 0x0 (4 bytes) // payload: tcmsg[AF_UNSPEC] { // family: const = 0x0 (1 bytes) // tcm__pad1: const = 0x0 (1 bytes) // tcm__pad2: const = 0x0 (2 bytes) // ifindex: ifindex (resource) // tcm_handle: tcm_handle { // minor: tcm_handle_offsets = 0x0 (2 bytes) // major: tcm_handle_offsets = 0xffff (2 bytes) // } // tcm_parent: tcm_handle { // minor: tcm_handle_offsets = 0xffff (2 bytes) // major: tcm_handle_offsets = 0xffff (2 bytes) // } // tcm_info: tcm_handle { // minor: tcm_handle_offsets = 0x0 (2 bytes) // major: tcm_handle_offsets = 0x0 (2 bytes) // } // } // attrs: array[rtm_tca_policy] { // union rtm_tca_policy { // qdisc_kind_options: union qdisc_kind_options { // q_mqprio: tca_kind_options_t["mqprio", // tc_mqprio_message] { // TCA_KIND: nlattr_t[const[TCA_KIND, int16], // string["mqprio"]] { // nla_len: offsetof = 0xb (2 bytes) // nla_type: const = 0x1 (2 bytes) // payload: buffer: {6d 71 70 72 69 6f 00} (length // 0x7) size: buffer: {} (length 0x0) pad = 0x0 (1 // bytes) // } // TCA_OPTIONS: nlattr_t[const[TCA_OPTIONS, int16], // tc_mqprio_message] { // nla_len: offsetof = 0x58 (2 bytes) // nla_type: const = 0x2 (2 bytes) // payload: tc_mqprio_message { // qopt: tc_mqprio_qopt { // num_tc: int8 = 0x1 (1 bytes) // prio_tc_map: array[int8] { // int8 = 0x0 (1 bytes) // int8 = 0x0 (1 bytes) // int8 = 0x0 (1 bytes) // int8 = 0x0 (1 bytes) // int8 = 0x0 (1 bytes) // int8 = 0x0 (1 bytes) // int8 = 0x0 (1 bytes) // int8 = 0x0 (1 bytes) // int8 = 0x0 (1 bytes) // int8 = 0x0 (1 bytes) // int8 = 0x0 (1 bytes) // int8 = 0x0 (1 bytes) // int8 = 0x0 (1 bytes) // int8 = 0x0 (1 bytes) // int8 = 0x0 (1 bytes) // int8 = 0x0 (1 bytes) // } // hw: int8 = 0x0 (1 bytes) // count: array[int16] { // int16 = 0x1 (2 bytes) // int16 = 0x2 (2 bytes) // int16 = 0xfffe (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x8 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x5c4 (2 bytes) // int16 = 0x8000 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x3dc (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x0 (2 bytes) // } // offset: array[int16] { // int16 = 0x0 (2 bytes) // int16 = 0x4 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x0 (2 bytes) // int16 = 0x1000 (2 bytes) // } // } // pad = 0x0 (2 bytes) // attrs: array[mqprio_policy] { // } // } // size: buffer: {} (length 0x0) // } // } // } // } // } // } // } // } // len: len = 0x88 (8 bytes) // } // } // vlen: const = 0x1 (8 bytes) // ctrl: const = 0x0 (8 bytes) // ctrllen: const = 0x0 (8 bytes) // f: send_flags = 0x0 (4 bytes) // pad = 0x0 (4 bytes) // } // } // f: send_flags = 0x20000000 (8 bytes) // ] *(uint64_t*)0x200000000200 = 0; *(uint32_t*)0x200000000208 = 0; *(uint64_t*)0x200000000210 = 0x200000000000; *(uint64_t*)0x200000000000 = 0x200000000300; *(uint32_t*)0x200000000300 = 0x88; *(uint16_t*)0x200000000304 = 0x24; *(uint16_t*)0x200000000306 = 0xf0b; *(uint32_t*)0x200000000308 = 0x70bd26; *(uint32_t*)0x20000000030c = 0; *(uint8_t*)0x200000000310 = 0; *(uint8_t*)0x200000000311 = 0; *(uint16_t*)0x200000000312 = 0; *(uint32_t*)0x200000000314 = r[2]; *(uint16_t*)0x200000000318 = 0; *(uint16_t*)0x20000000031a = -1; *(uint16_t*)0x20000000031c = -1; *(uint16_t*)0x20000000031e = -1; *(uint16_t*)0x200000000320 = 0; *(uint16_t*)0x200000000322 = 0; *(uint16_t*)0x200000000324 = 0xb; *(uint16_t*)0x200000000326 = 1; memcpy((void*)0x200000000328, "mqprio\000", 7); *(uint16_t*)0x200000000330 = 0x58; *(uint16_t*)0x200000000332 = 2; *(uint8_t*)0x200000000334 = 1; *(uint8_t*)0x200000000335 = 0; *(uint8_t*)0x200000000336 = 0; *(uint8_t*)0x200000000337 = 0; *(uint8_t*)0x200000000338 = 0; *(uint8_t*)0x200000000339 = 0; *(uint8_t*)0x20000000033a = 0; *(uint8_t*)0x20000000033b = 0; *(uint8_t*)0x20000000033c = 0; *(uint8_t*)0x20000000033d = 0; *(uint8_t*)0x20000000033e = 0; *(uint8_t*)0x20000000033f = 0; *(uint8_t*)0x200000000340 = 0; *(uint8_t*)0x200000000341 = 0; *(uint8_t*)0x200000000342 = 0; *(uint8_t*)0x200000000343 = 0; *(uint8_t*)0x200000000344 = 0; *(uint8_t*)0x200000000345 = 0; *(uint16_t*)0x200000000346 = 1; *(uint16_t*)0x200000000348 = 2; *(uint16_t*)0x20000000034a = 0xfffe; *(uint16_t*)0x20000000034c = 0; *(uint16_t*)0x20000000034e = 0; *(uint16_t*)0x200000000350 = 0; *(uint16_t*)0x200000000352 = 0; *(uint16_t*)0x200000000354 = 8; *(uint16_t*)0x200000000356 = 0; *(uint16_t*)0x200000000358 = 0x5c4; *(uint16_t*)0x20000000035a = 0x8000; *(uint16_t*)0x20000000035c = 0; *(uint16_t*)0x20000000035e = 0; *(uint16_t*)0x200000000360 = 0x3dc; *(uint16_t*)0x200000000362 = 0; *(uint16_t*)0x200000000364 = 0; *(uint16_t*)0x200000000366 = 0; *(uint16_t*)0x200000000368 = 4; *(uint16_t*)0x20000000036a = 0; *(uint16_t*)0x20000000036c = 0; *(uint16_t*)0x20000000036e = 0; *(uint16_t*)0x200000000370 = 0; *(uint16_t*)0x200000000372 = 0; *(uint16_t*)0x200000000374 = 0; *(uint16_t*)0x200000000376 = 0; *(uint16_t*)0x200000000378 = 0; *(uint16_t*)0x20000000037a = 0; *(uint16_t*)0x20000000037c = 0; *(uint16_t*)0x20000000037e = 0; *(uint16_t*)0x200000000380 = 0; *(uint16_t*)0x200000000382 = 0; *(uint16_t*)0x200000000384 = 0x1000; *(uint64_t*)0x200000000008 = 0x88; *(uint64_t*)0x200000000218 = 1; *(uint64_t*)0x200000000220 = 0; *(uint64_t*)0x200000000228 = 0; *(uint32_t*)0x200000000230 = 0; syscall(__NR_sendmsg, /*fd=*/r[3], /*msg=*/0x200000000200ul, /*f=MSG_FASTOPEN*/ 0x20000000ul); // socket arguments: [ // domain: socket_domain = 0x400000000010 (8 bytes) // type: socket_type = 0x3 (8 bytes) // proto: int32 = 0x0 (4 bytes) // ] // returns sock res = syscall(__NR_socket, /*domain=AF_NETLINK|0x400000000000*/ 0x400000000010ul, /*type=SOCK_RAW*/ 3ul, /*proto=*/0); if (res != -1) r[4] = res; // sendmsg$nl_route_sched arguments: [ // fd: sock_nl_route (resource) // msg: ptr[in, msghdr_netlink[netlink_msg_route_sched]] { // msghdr_netlink[netlink_msg_route_sched] { // addr: nil // addrlen: len = 0x0 (4 bytes) // pad = 0x0 (4 bytes) // vec: ptr[in, iovec[in, netlink_msg_route_sched]] { // iovec[in, netlink_msg_route_sched] { // addr: ptr[in, netlink_msg_route_sched] { // union netlink_msg_route_sched { // newqdisc: netlink_msg_t[const[RTM_NEWQDISC, int16], // tcmsg[AF_UNSPEC], rtm_tca_policy] { // len: len = 0x4c (4 bytes) // type: const = 0x24 (2 bytes) // flags: netlink_msg_flags = 0x4ee4e6a52ff56541 (2 bytes) // seq: int32 = 0x70bd29 (4 bytes) // pid: int32 = 0xfffbffff (4 bytes) // payload: tcmsg[AF_UNSPEC] { // family: const = 0x0 (1 bytes) // tcm__pad1: const = 0x0 (1 bytes) // tcm__pad2: const = 0x0 (2 bytes) // ifindex: ifindex (resource) // tcm_handle: tcm_handle { // minor: tcm_handle_offsets = 0x0 (2 bytes) // major: tcm_handle_offsets = 0x8 (2 bytes) // } // tcm_parent: tcm_handle { // minor: tcm_handle_offsets = 0xffff (2 bytes) // major: tcm_handle_offsets = 0xffff (2 bytes) // } // tcm_info: tcm_handle { // minor: tcm_handle_offsets = 0xc (2 bytes) // major: tcm_handle_offsets = 0xfff3 (2 bytes) // } // } // attrs: array[rtm_tca_policy] { // union rtm_tca_policy { // qdisc_kind_options: union qdisc_kind_options { // q_taprio: tca_kind_options_t["taprio", // array[taprio_policy]] { // TCA_KIND: nlattr_t[const[TCA_KIND, int16], // string["taprio"]] { // nla_len: offsetof = 0xb (2 bytes) // nla_type: const = 0x1 (2 bytes) // payload: buffer: {74 61 70 72 69 6f 00} (length // 0x7) size: buffer: {} (length 0x0) pad = 0x0 (1 // bytes) // } // TCA_OPTIONS: nlattr_t[const[TCA_OPTIONS, int16], // array[taprio_policy]] { // nla_len: offsetof = 0x1c (2 bytes) // nla_type: const = 0x2 (2 bytes) // payload: array[taprio_policy] { // union taprio_policy { // TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST: // nlattr_tt[const[TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST, // int16:14], 0, 1, // array[nlnest[TCA_TAPRIO_SCHED_ENTRY, // array[entry_policy$taprio]]]] { // nla_len: offsetof = 0x10 (2 bytes) // nla_type: const = 0x2 (1 bytes) // NLA_F_NET_BYTEORDER: const = 0x0 (0 bytes) // NLA_F_NESTED: const = 0x1 (1 bytes) // payload: // array[nlattr_tt[const[TCA_TAPRIO_SCHED_ENTRY, // int16:14], 0, 1, // array[entry_policy$taprio]]] { // nlattr_tt[const[TCA_TAPRIO_SCHED_ENTRY, // int16:14], 0, 1, // array[entry_policy$taprio]] { // nla_len: offsetof = 0xc (2 bytes) // nla_type: const = 0x1 (1 bytes) // NLA_F_NET_BYTEORDER: const = 0x0 (0 // bytes) NLA_F_NESTED: const = 0x1 (1 // bytes) payload: // array[entry_policy$taprio] { // union entry_policy$taprio { // TCA_TAPRIO_SCHED_ENTRY_INTERVAL: // nlattr_t[const[TCA_TAPRIO_SCHED_ENTRY_INTERVAL, // int16], int32] { // nla_len: offsetof = 0x8 (2 // bytes) nla_type: const = 0x4 (2 // bytes) payload: int32 = 0xdd (4 // bytes) size: buffer: {} (length // 0x0) // } // } // } // size: buffer: {} (length 0x0) // } // } // size: buffer: {} (length 0x0) // } // } // union taprio_policy { // TCA_TAPRIO_ATTR_SCHED_CLOCKID: // nlattr_t[const[TCA_TAPRIO_ATTR_SCHED_CLOCKID, // int16], int32] { // nla_len: offsetof = 0x8 (2 bytes) // nla_type: const = 0x5 (2 bytes) // payload: int32 = 0x0 (4 bytes) // size: buffer: {} (length 0x0) // } // } // } // size: buffer: {} (length 0x0) // } // } // } // } // } // } // } // } // len: len = 0x4c (8 bytes) // } // } // vlen: const = 0x1 (8 bytes) // ctrl: const = 0x0 (8 bytes) // ctrllen: const = 0x0 (8 bytes) // f: send_flags = 0x40001 (4 bytes) // pad = 0x0 (4 bytes) // } // } // f: send_flags = 0x10 (8 bytes) // ] *(uint64_t*)0x2000000012c0 = 0; *(uint32_t*)0x2000000012c8 = 0; *(uint64_t*)0x2000000012d0 = 0x200000000080; *(uint64_t*)0x200000000080 = 0x200000000140; *(uint32_t*)0x200000000140 = 0x4c; *(uint16_t*)0x200000000144 = 0x24; *(uint16_t*)0x200000000146 = 0x6541; *(uint32_t*)0x200000000148 = 0x70bd29; *(uint32_t*)0x20000000014c = 0xfffbffff; *(uint8_t*)0x200000000150 = 0; *(uint8_t*)0x200000000151 = 0; *(uint16_t*)0x200000000152 = 0; *(uint32_t*)0x200000000154 = r[2]; *(uint16_t*)0x200000000158 = 0; *(uint16_t*)0x20000000015a = 8; *(uint16_t*)0x20000000015c = -1; *(uint16_t*)0x20000000015e = -1; *(uint16_t*)0x200000000160 = 0xc; *(uint16_t*)0x200000000162 = 0xfff3; *(uint16_t*)0x200000000164 = 0xb; *(uint16_t*)0x200000000166 = 1; memcpy((void*)0x200000000168, "taprio\000", 7); *(uint16_t*)0x200000000170 = 0x1c; *(uint16_t*)0x200000000172 = 2; *(uint16_t*)0x200000000174 = 0x10; STORE_BY_BITMASK(uint16_t, , 0x200000000176, 2, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x200000000177, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x200000000177, 1, 7, 1); *(uint16_t*)0x200000000178 = 0xc; STORE_BY_BITMASK(uint16_t, , 0x20000000017a, 1, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x20000000017b, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x20000000017b, 1, 7, 1); *(uint16_t*)0x20000000017c = 8; *(uint16_t*)0x20000000017e = 4; *(uint32_t*)0x200000000180 = 0xdd; *(uint16_t*)0x200000000184 = 8; *(uint16_t*)0x200000000186 = 5; *(uint32_t*)0x200000000188 = 0; *(uint64_t*)0x200000000088 = 0x4c; *(uint64_t*)0x2000000012d8 = 1; *(uint64_t*)0x2000000012e0 = 0; *(uint64_t*)0x2000000012e8 = 0; *(uint32_t*)0x2000000012f0 = 0x40001; syscall(__NR_sendmsg, /*fd=*/r[4], /*msg=*/0x2000000012c0ul, /*f=MSG_PROBE*/ 0x10ul); } int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; loop(); return 0; }