| // KMSAN: uninit-value in aes_encrypt |
| // https://syzkaller.appspot.com/bug?id=4557dec99e8a9bbb8939ff244ff1b7c46adcc0d4 |
| // status:invalid |
| // autogenerated by syzkaller (http://github.com/google/syzkaller) |
| |
| #define _GNU_SOURCE |
| #include <endian.h> |
| #include <linux/futex.h> |
| #include <pthread.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/syscall.h> |
| #include <unistd.h> |
| |
| static void execute_one(); |
| extern unsigned long long procid; |
| |
| void loop() |
| { |
| while (1) { |
| execute_one(); |
| } |
| } |
| |
| struct thread_t { |
| int created, running, call; |
| pthread_t th; |
| }; |
| |
| static struct thread_t threads[16]; |
| static void execute_call(int call); |
| static int running; |
| static int collide; |
| |
| static void* thr(void* arg) |
| { |
| struct thread_t* th = (struct thread_t*)arg; |
| for (;;) { |
| while (!__atomic_load_n(&th->running, __ATOMIC_ACQUIRE)) |
| syscall(SYS_futex, &th->running, FUTEX_WAIT, 0, 0); |
| execute_call(th->call); |
| __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED); |
| __atomic_store_n(&th->running, 0, __ATOMIC_RELEASE); |
| syscall(SYS_futex, &th->running, FUTEX_WAKE); |
| } |
| return 0; |
| } |
| |
| static void execute(int num_calls) |
| { |
| int call, thread; |
| running = 0; |
| for (call = 0; call < num_calls; call++) { |
| for (thread = 0; thread < sizeof(threads) / sizeof(threads[0]); thread++) { |
| struct thread_t* th = &threads[thread]; |
| if (!th->created) { |
| th->created = 1; |
| pthread_attr_t attr; |
| pthread_attr_init(&attr); |
| pthread_attr_setstacksize(&attr, 128 << 10); |
| pthread_create(&th->th, &attr, thr, th); |
| } |
| if (!__atomic_load_n(&th->running, __ATOMIC_ACQUIRE)) { |
| th->call = call; |
| __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED); |
| __atomic_store_n(&th->running, 1, __ATOMIC_RELEASE); |
| syscall(SYS_futex, &th->running, FUTEX_WAKE); |
| if (collide && call % 2) |
| break; |
| struct timespec ts; |
| ts.tv_sec = 0; |
| ts.tv_nsec = 20 * 1000 * 1000; |
| syscall(SYS_futex, &th->running, FUTEX_WAIT, 1, &ts); |
| if (running) |
| usleep((call == num_calls - 1) ? 10000 : 1000); |
| break; |
| } |
| } |
| } |
| } |
| |
| uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff}; |
| void execute_call(int call) |
| { |
| long res; |
| switch (call) { |
| case 0: |
| res = syscall(__NR_socket, 0x26, 5, 0); |
| if (res != -1) |
| r[0] = res; |
| break; |
| case 1: |
| *(uint16_t*)0x20000080 = 0x26; |
| memcpy((void*)0x20000082, |
| "\x61\x65\x61\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 14); |
| *(uint32_t*)0x20000090 = 0; |
| *(uint32_t*)0x20000094 = 0; |
| memcpy((void*)0x20000098, |
| "\x67\x63\x6d\x5f\x62\x61\x73\x65\x28\x63\x74\x72\x2d\x61\x65\x73" |
| "\x2d\x61\x65\x73\x6e\x69\x2c\x63\x62\x63\x6d\x61\x63\x28\x61\x65" |
| "\x73\x2d\x67\x65\x6e\x65\x72\x69\x63\x29\x29\x00\x00\x00\x00\x00" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", |
| 64); |
| syscall(__NR_bind, r[0], 0x20000080, 0x58); |
| break; |
| case 2: |
| memcpy((void*)0x20ff8000, |
| "\x0a\x07\x75\xb0\x05\xe3\x81\xe5\xb3\xb6\x0c\xed\x5c\x54\xdb\xb7", |
| 16); |
| syscall(__NR_setsockopt, r[0], 0x117, 1, 0x20ff8000, 0x10); |
| break; |
| case 3: |
| res = syscall(__NR_accept, r[0], 0, 0); |
| if (res != -1) |
| r[1] = res; |
| break; |
| case 4: |
| *(uint64_t*)0x20003040 = 0; |
| *(uint32_t*)0x20003048 = 0; |
| *(uint64_t*)0x20003050 = 0x20000300; |
| *(uint64_t*)0x20000300 = 0x20000200; |
| memcpy((void*)0x20000200, "\x37\xc9\x28\x6f\x2e", 5); |
| *(uint64_t*)0x20000308 = 5; |
| *(uint64_t*)0x20003058 = 1; |
| *(uint64_t*)0x20003060 = 0x20002480; |
| *(uint64_t*)0x20002480 = 0x18; |
| *(uint32_t*)0x20002488 = 0x117; |
| *(uint32_t*)0x2000248c = 3; |
| *(uint32_t*)0x20002490 = 1; |
| *(uint64_t*)0x20003068 = 0x18; |
| *(uint32_t*)0x20003070 = 0; |
| syscall(__NR_sendmmsg, r[1], 0x20003040, 1, 0); |
| break; |
| case 5: |
| *(uint64_t*)0x20001440 = 0x20000280; |
| *(uint32_t*)0x20001448 = 0x80; |
| *(uint64_t*)0x20001450 = 0x200013c0; |
| *(uint64_t*)0x200013c0 = 0x200003c0; |
| *(uint64_t*)0x200013c8 = 0x1000; |
| *(uint64_t*)0x20001458 = 1; |
| *(uint64_t*)0x20001460 = 0x20001400; |
| *(uint64_t*)0x20001468 = 6; |
| *(uint32_t*)0x20001470 = 0; |
| syscall(__NR_recvmsg, r[1], 0x20001440, 0); |
| break; |
| } |
| } |
| |
| void execute_one() |
| { |
| execute(6); |
| collide = 1; |
| execute(6); |
| } |
| |
| int main() |
| { |
| syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); |
| for (;;) { |
| loop(); |
| } |
| } |