syzkaller-repros/linux/68c0c174c30a272bc99336c276caa67fb74bd95f.c

// general protection fault in wait_consider_task
// https://syzkaller.appspot.com/bug?id=68c0c174c30a272bc99336c276caa67fb74bd95f
// status:open
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

uint64_t r[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  intptr_t res = 0;
  memcpy((void*)0x20000280, "/dev/infiniband/rdma_cm\000", 24);
  res = syscall(__NR_openat, 0xffffffffffffff9c, 0x20000280, 2, 0);
  if (res != -1)
    r[0] = res;
  *(uint32_t*)0x20000080 = 0;
  *(uint16_t*)0x20000084 = 0x18;
  *(uint16_t*)0x20000086 = 0xfa00;
  *(uint64_t*)0x20000088 = 0;
  *(uint64_t*)0x20000090 = 0x20000040;
  *(uint16_t*)0x20000098 = 0x13f;
  *(uint8_t*)0x2000009a = 0;
  *(uint8_t*)0x2000009b = 0;
  *(uint8_t*)0x2000009c = 0;
  *(uint8_t*)0x2000009d = 0;
  *(uint8_t*)0x2000009e = 0;
  *(uint8_t*)0x2000009f = 0;
  res = syscall(__NR_write, r[0], 0x20000080, 0x20);
  if (res != -1)
    r[1] = *(uint32_t*)0x20000040;
  *(uint32_t*)0x200000c0 = 0x14;
  *(uint16_t*)0x200000c4 = 0x88;
  *(uint16_t*)0x200000c6 = 0xfa00;
  *(uint32_t*)0x200000c8 = r[1];
  *(uint16_t*)0x200000cc = 0x30;
  *(uint16_t*)0x200000ce = 0;
  *(uint16_t*)0x200000d0 = 0x1b;
  *(uint16_t*)0x200000d2 = htobe16(0);
  *(uint32_t*)0x200000d4 = htobe32(0);
  memcpy((void*)0x200000d8,
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01",
         16);
  *(uint64_t*)0x200000e8 = htobe64(0x1110002);
  *(uint64_t*)0x200000f0 = htobe64(-1);
  *(uint64_t*)0x200000f8 = 0;
  syscall(__NR_write, r[0], 0x200000c0, 0x90);
  memcpy((void*)0x200001c0, "/dev/infiniband/rdma_cm\000", 24);
  res = syscall(__NR_openat, 0xffffffffffffff9c, 0x200001c0, 2, 0);
  if (res != -1)
    r[2] = res;
  *(uint32_t*)0x20000080 = 0;
  *(uint16_t*)0x20000084 = 0x18;
  *(uint16_t*)0x20000086 = 0xfa00;
  *(uint64_t*)0x20000088 = 0;
  *(uint64_t*)0x20000090 = 0x20000040;
  *(uint16_t*)0x20000098 = 0x13f;
  *(uint8_t*)0x2000009a = 0;
  *(uint8_t*)0x2000009b = 0;
  *(uint8_t*)0x2000009c = 0;
  *(uint8_t*)0x2000009d = 0;
  *(uint8_t*)0x2000009e = 0;
  *(uint8_t*)0x2000009f = 0;
  res = syscall(__NR_write, r[2], 0x20000080, 0x20);
  if (res != -1)
    r[3] = *(uint32_t*)0x20000040;
  *(uint32_t*)0x200000c0 = 0x14;
  *(uint16_t*)0x200000c4 = 0x88;
  *(uint16_t*)0x200000c6 = 0xfa00;
  *(uint32_t*)0x200000c8 = r[3];
  *(uint16_t*)0x200000cc = 0x30;
  *(uint16_t*)0x200000ce = 0;
  *(uint16_t*)0x200000d0 = 0x1b;
  *(uint16_t*)0x200000d2 = htobe16(0);
  *(uint32_t*)0x200000d4 = htobe32(0);
  memcpy((void*)0x200000d8,
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01",
         16);
  *(uint64_t*)0x200000e8 = htobe64(0x1110002);
  *(uint64_t*)0x200000f0 = htobe64(-1);
  *(uint64_t*)0x200000f8 = 0;
  syscall(__NR_write, r[2], 0x200000c0, 0x90);
  return 0;
}