| // KASAN: slab-out-of-bounds Read in hci_event_packet |
| // https://syzkaller.appspot.com/bug?id=d708485af9edc3af35f3b4d554e827c6c8bf6b0f |
| // 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> |
| |
| 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; |
| memcpy((void*)0x200000c0, "/dev/vhci\x00", 10); |
| res = syscall(__NR_openat, 0xffffffffffffff9c, 0x200000c0, 0x8401, 0); |
| if (res != -1) |
| r[0] = res; |
| *(uint8_t*)0x20000140 = -1; |
| *(uint8_t*)0x20000141 = 0; |
| syscall(__NR_write, r[0], 0x20000140, 2); |
| *(uint8_t*)0x200004c0 = 4; |
| memcpy((void*)0x200004c1, |
| "\x22\xc0\xee\xb1\xed\xb9\x61\xb1\x25\x71\x68\xe1\x3e\x60\xc3\xda\xaa" |
| "\x2c\x55\xa2\x23\x0f\xcd\x70\x38\x34\x3c\x40\xe8\x5d\x0d\x25\x5a\xb6" |
| "\xe7\x95\xec\xf4\xbe\xcc\xc0\x33\x8d\xed\x39\xc9\xf4\xd8\x9e\xb5\xa5" |
| "\xbb\xb5\x5a\xad\xc5\x2e\x8c\xd6\x0f\x2d\x56\xd7\xd4\xf2\xfe\x64\x1c" |
| "\x75\xce\xf2\x59\xf1\xed\x90\xf2\x94\x19\x1e\x44\x10\xa8\x56\x75\x8f" |
| "\x8f\x54\xce\xc0\xcc\xfd\xa8\xbe\xf9\xdb\x1f\x9e\x34\x38\xc5\x6e\x68" |
| "\x41\x6d\x26\x20\xd0\xa2\x4e\xa8\x5d\x2e\x3a\x85\x04\xf0\xe9\xc2\x04" |
| "\xf9\xa1\x2b\xd7\x09\x7b\x1a\x6d\x0a\x52\x09\xc3\x0c\xc4\x44\x8b\x9c" |
| "\xe1\x6e\xff\x5d\x80\x50\x03\xce\xfe\xa3\xa1\x9d\xf5\x58\x62\x13\x9f" |
| "\x90\xfd\xb2\x0d\xc9\xb6\xe5\x5a\x0c\x7b\xea\xb0\x07\xde\x99\x04\x8a" |
| "\xd0\x68\x3b\x3c\xb5\x95\xa7\x09\x13\x7e\x0a\x92\xdd\x64\x68\xfc", |
| 186); |
| syscall(__NR_write, r[0], 0x200004c0, 0xbb); |
| } |
| int main(void) |
| { |
| syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); |
| loop(); |
| return 0; |
| } |