| // lost connection to test machine (3) |
| // https://syzkaller.appspot.com/bug?id=286166aa4744abfe4a5d2b5f6eb4796575004992 |
| // status:open |
| // autogenerated by syzkaller (https://github.com/google/syzkaller) |
| |
| #define _GNU_SOURCE |
| |
| #include <dirent.h> |
| #include <endian.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <signal.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/prctl.h> |
| #include <sys/stat.h> |
| #include <sys/syscall.h> |
| #include <sys/types.h> |
| #include <sys/wait.h> |
| #include <time.h> |
| #include <unistd.h> |
| |
| unsigned long long procid; |
| |
| 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; |
| } |
| |
| static void kill_and_wait(int pid, int* status) |
| { |
| kill(-pid, SIGKILL); |
| kill(pid, SIGKILL); |
| int i; |
| for (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) { |
| } |
| } |
| |
| #define SYZ_HAVE_SETUP_TEST 1 |
| static void setup_test() |
| { |
| prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); |
| setpgrp(); |
| } |
| |
| #define SYZ_HAVE_RESET_TEST 1 |
| static void reset_test() |
| { |
| int fd; |
| for (fd = 3; fd < 30; fd++) |
| close(fd); |
| } |
| |
| static void execute_one(void); |
| |
| #define WAIT_FLAGS __WALL |
| |
| static void loop(void) |
| { |
| int iter; |
| for (iter = 0;; iter++) { |
| int pid = fork(); |
| if (pid < 0) |
| exit(1); |
| if (pid == 0) { |
| setup_test(); |
| execute_one(); |
| reset_test(); |
| exit(0); |
| } |
| int status = 0; |
| uint64_t start = current_time_ms(); |
| for (;;) { |
| if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) |
| break; |
| sleep_ms(1); |
| if (current_time_ms() - start < 5 * 1000) |
| continue; |
| kill_and_wait(pid, &status); |
| break; |
| } |
| } |
| } |
| |
| uint64_t r[1] = {0xffffffffffffffff}; |
| |
| void execute_one(void) |
| { |
| long res = 0; |
| *(uint16_t*)0x20002000 = 0xa; |
| *(uint16_t*)0x20002002 = htobe16(0); |
| *(uint32_t*)0x20002004 = 0; |
| *(uint8_t*)0x20002008 = 0; |
| *(uint8_t*)0x20002009 = 0; |
| *(uint8_t*)0x2000200a = 0; |
| *(uint8_t*)0x2000200b = 0; |
| *(uint8_t*)0x2000200c = 0; |
| *(uint8_t*)0x2000200d = 0; |
| *(uint8_t*)0x2000200e = 0; |
| *(uint8_t*)0x2000200f = 0; |
| *(uint8_t*)0x20002010 = 0; |
| *(uint8_t*)0x20002011 = 0; |
| *(uint8_t*)0x20002012 = 0; |
| *(uint8_t*)0x20002013 = 0; |
| *(uint8_t*)0x20002014 = 0; |
| *(uint8_t*)0x20002015 = 0; |
| *(uint8_t*)0x20002016 = 0; |
| *(uint8_t*)0x20002017 = 0; |
| *(uint32_t*)0x20002018 = 0; |
| *(uint16_t*)0x2000201c = 0xa; |
| *(uint16_t*)0x2000201e = htobe16(0); |
| *(uint32_t*)0x20002020 = 0; |
| *(uint8_t*)0x20002024 = 0; |
| *(uint8_t*)0x20002025 = 0; |
| *(uint8_t*)0x20002026 = 0; |
| *(uint8_t*)0x20002027 = 0; |
| *(uint8_t*)0x20002028 = 0; |
| *(uint8_t*)0x20002029 = 0; |
| *(uint8_t*)0x2000202a = 0; |
| *(uint8_t*)0x2000202b = 0; |
| *(uint8_t*)0x2000202c = 0; |
| *(uint8_t*)0x2000202d = 0; |
| *(uint8_t*)0x2000202e = 0; |
| *(uint8_t*)0x2000202f = 0; |
| *(uint8_t*)0x20002030 = 0; |
| *(uint8_t*)0x20002031 = 0; |
| *(uint8_t*)0x20002032 = 0; |
| *(uint8_t*)0x20002033 = 0; |
| *(uint32_t*)0x20002034 = 1; |
| *(uint16_t*)0x20002038 = 0; |
| *(uint32_t*)0x2000203c = 0; |
| *(uint32_t*)0x20002040 = 0; |
| *(uint32_t*)0x20002044 = 0; |
| *(uint32_t*)0x20002048 = 0; |
| *(uint32_t*)0x2000204c = 0; |
| *(uint32_t*)0x20002050 = 0; |
| *(uint32_t*)0x20002054 = 0; |
| *(uint32_t*)0x20002058 = 0; |
| syscall(__NR_setsockopt, -1, 0x29, 0xd3, 0x20002000, 0x5c); |
| *(uint32_t*)0x20002000 = 0; |
| *(uint32_t*)0x20002004 = 0x73; |
| *(uint32_t*)0x20002008 = 0xf1ea; |
| *(uint32_t*)0x2000200c = 0; |
| *(uint32_t*)0x20002010 = 0; |
| syscall(__NR_setsockopt, -1, 6, 0x1d, 0x20002000, 0x10b); |
| res = syscall(__NR_socket, 0xa, 1, 0); |
| if (res != -1) |
| r[0] = res; |
| *(uint32_t*)0x20001fde = 0; |
| syscall(__NR_setsockopt, r[0], 0x29, 0x40, 0x20001fde, 4); |
| } |
| int main(void) |
| { |
| syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); |
| for (procid = 0; procid < 6; procid++) { |
| if (fork() == 0) { |
| loop(); |
| } |
| } |
| sleep(1000000); |
| return 0; |
| } |