// https://syzkaller.appspot.com/bug?id=9d5401918f3bee146505d56912b0c57dbc0743d9
// 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 <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mount.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>

#ifndef __NR_bpf
#define __NR_bpf 321
#endif

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 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;
    }
  }
}

void execute_one(void)
{
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  bpf$BPF_PROG_RAW_TRACEPOINT_LOAD arguments: [
  //    cmd: const = 0x5 (8 bytes)
  //    arg: ptr[in, bpf_prog_t[flags[bpf_raw_tracepoint_prog_types, int32],
  //    const[0, int32], const[0, int32], const[0, int32]]] {
  //      bpf_prog_t[flags[bpf_raw_tracepoint_prog_types, int32], const[0,
  //      int32], const[0, int32], const[0, int32]] {
  //        type: bpf_raw_tracepoint_prog_types = 0x11 (4 bytes)
  //        ninsn: bytesize8 = 0x12 (4 bytes)
  //        insns: ptr[inout, array[ANYUNION]] {
  //          array[ANYUNION] {
  //            union ANYUNION {
  //              ANYBLOB: buffer: {18 08 00 00 d0 ff 00 00 00 00 00 00 00 85 10
  //              00 01 06 00 00 00 18 00 00 00 00 00 00 cb f3 b7 d3 ef 96 fc ee
  //              f0 4c 03 20 99 79 7d 6a c9 c5 8b 72 64 c9 0f 17 d8 f8 5e c1 ed
  //              05 60 84 44 8b 5a 0f a4 0a ea 79 30 89 22 64 db 85 d1 7b 01 73
  //              11 fd af d2 23 82 65 e0 fe 4c 40 5f 47 ee 8d 43 0a 29 13 bf d7
  //              59 13 aa d4 ed 1d 82 3a 99 4c 87 3d 10 ce cd 22 8c 42 05 53 e2
  //              29 66 ab b7 92 ab a9 25 3d 26 68 5b 99 32 0c 0a 73 19 44 72 a1
  //              78 f8 43 dc 1f a0 92 36 de d9 7b 32 20 81 71 81 06 24 14 64 b2
  //              ff af 6a ca 02 6d 00 00 00 00 00 e9 b8 fa 25 6b 2d c8 a1 5e 26
  //              32 48 cc ce f5 7e f1 0d c7 47 62 5e e3 21 92 fd a0 2b f6 6f ff
  //              bb 1d d9 03 00 28 97 23 d4 a5 5e ea c2 d7 dd 3f d6 40 f3 a5 d5
  //              2a a1 08 52 92 9b 4b 0d 1b 48 7c d4 22 a2 5a f7 60 94 18 b1 ad
  //              c2 d9 28 cd 9c a7 e2 3c b5 c6 ee a4 34 69 65 e8 f8 4f bc 8d bf
  //              0d 35 88 0b bc 8f a7 23 cd c6 87 64 7d 7d 6f 22 14 17 ae 92 0b
  //              02 54 15 7b 55 6e b8 20 69 87 de c7 58 13 e0 e4} (length
  //              0x130)
  //            }
  //            union ANYUNION {
  //              ANYRES32: ANYRES32 (resource)
  //            }
  //            union ANYUNION {
  //              ANYBLOB: buffer: {} (length 0x0)
  //            }
  //          }
  //        }
  //        license: ptr[in, buffer] {
  //          buffer: {47 50 4c 00} (length 0x4)
  //        }
  //        loglev: int32 = 0x2 (4 bytes)
  //        logsize: len = 0x0 (4 bytes)
  //        log: nil
  //        kern_version: bpf_kern_version = 0x0 (4 bytes)
  //        flags: bpf_prog_load_flags = 0xc (4 bytes)
  //        prog_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00}
  //        (length 0x10) prog_ifindex: ifindex (resource) expected_attach_type:
  //        const = 0x0 (4 bytes) btf_fd: fd_btf (resource) func_info_rec_size:
  //        const = 0x8 (4 bytes) func_info: nil func_info_cnt: len = 0x0 (4
  //        bytes) line_info_rec_size: const = 0x10 (4 bytes) line_info: nil
  //        line_info_cnt: len = 0x0 (4 bytes)
  //        attach_btf_id: const = 0x0 (4 bytes)
  //        attach_prog_fd: const = 0x0 (4 bytes)
  //        core_relo_cnt: len = 0x0 (4 bytes)
  //        fd_array: nil
  //        core_relos: nil
  //        core_relo_rec_size: const = 0x10 (4 bytes)
  //        log_true_size: int32 = 0x0 (4 bytes)
  //        prog_token_fd: union
  //        _bpf_prog_t[flags[bpf_raw_tracepoint_prog_types, int32], const[0,
  //        int32], const[0, int32], const[0, int32]]_prog_token_fd_wrapper {
  //          void: buffer: {} (length 0x0)
  //        }
  //        pad: union _bpf_prog_t[flags[bpf_raw_tracepoint_prog_types, int32],
  //        const[0, int32], const[0, int32], const[0, int32]]_pad_wrapper {
  //          value: const = 0x0 (4 bytes)
  //        }
  //      }
  //    }
  //    size: len = 0x94 (8 bytes)
  //  ]
  //  returns fd_bpf_prog_raw_tracepoint
  *(uint32_t*)0x200000000440 = 0x11;
  *(uint32_t*)0x200000000444 = 0x12;
  *(uint64_t*)0x200000000448 = 0x200000000140;
  memcpy(
      (void*)0x200000000140,
      "\x18\x08\x00\x00\xd0\xff\x00\x00\x00\x00\x00\x00\x00\x85\x10\x00\x01\x06"
      "\x00\x00\x00\x18\x00\x00\x00\x00\x00\x00\xcb\xf3\xb7\xd3\xef\x96\xfc\xee"
      "\xf0\x4c\x03\x20\x99\x79\x7d\x6a\xc9\xc5\x8b\x72\x64\xc9\x0f\x17\xd8\xf8"
      "\x5e\xc1\xed\x05\x60\x84\x44\x8b\x5a\x0f\xa4\x0a\xea\x79\x30\x89\x22\x64"
      "\xdb\x85\xd1\x7b\x01\x73\x11\xfd\xaf\xd2\x23\x82\x65\xe0\xfe\x4c\x40\x5f"
      "\x47\xee\x8d\x43\x0a\x29\x13\xbf\xd7\x59\x13\xaa\xd4\xed\x1d\x82\x3a\x99"
      "\x4c\x87\x3d\x10\xce\xcd\x22\x8c\x42\x05\x53\xe2\x29\x66\xab\xb7\x92\xab"
      "\xa9\x25\x3d\x26\x68\x5b\x99\x32\x0c\x0a\x73\x19\x44\x72\xa1\x78\xf8\x43"
      "\xdc\x1f\xa0\x92\x36\xde\xd9\x7b\x32\x20\x81\x71\x81\x06\x24\x14\x64\xb2"
      "\xff\xaf\x6a\xca\x02\x6d\x00\x00\x00\x00\x00\xe9\xb8\xfa\x25\x6b\x2d\xc8"
      "\xa1\x5e\x26\x32\x48\xcc\xce\xf5\x7e\xf1\x0d\xc7\x47\x62\x5e\xe3\x21\x92"
      "\xfd\xa0\x2b\xf6\x6f\xff\xbb\x1d\xd9\x03\x00\x28\x97\x23\xd4\xa5\x5e\xea"
      "\xc2\xd7\xdd\x3f\xd6\x40\xf3\xa5\xd5\x2a\xa1\x08\x52\x92\x9b\x4b\x0d\x1b"
      "\x48\x7c\xd4\x22\xa2\x5a\xf7\x60\x94\x18\xb1\xad\xc2\xd9\x28\xcd\x9c\xa7"
      "\xe2\x3c\xb5\xc6\xee\xa4\x34\x69\x65\xe8\xf8\x4f\xbc\x8d\xbf\x0d\x35\x88"
      "\x0b\xbc\x8f\xa7\x23\xcd\xc6\x87\x64\x7d\x7d\x6f\x22\x14\x17\xae\x92\x0b"
      "\x02\x54\x15\x7b\x55\x6e\xb8\x20\x69\x87\xde\xc7\x58\x13\xe0\xe4",
      304);
  *(uint32_t*)0x200000000270 = -1;
  *(uint64_t*)0x200000000450 = 0x200000000000;
  memcpy((void*)0x200000000000, "GPL\000", 4);
  *(uint32_t*)0x200000000458 = 2;
  *(uint32_t*)0x20000000045c = 0;
  *(uint64_t*)0x200000000460 = 0;
  *(uint32_t*)0x200000000468 = 0;
  *(uint32_t*)0x20000000046c = 0xc;
  memset((void*)0x200000000470, 0, 16);
  *(uint32_t*)0x200000000480 = 0;
  *(uint32_t*)0x200000000484 = 0;
  *(uint32_t*)0x200000000488 = -1;
  *(uint32_t*)0x20000000048c = 8;
  *(uint64_t*)0x200000000490 = 0;
  *(uint32_t*)0x200000000498 = 0;
  *(uint32_t*)0x20000000049c = 0x10;
  *(uint64_t*)0x2000000004a0 = 0;
  *(uint32_t*)0x2000000004a8 = 0;
  *(uint32_t*)0x2000000004ac = 0;
  *(uint32_t*)0x2000000004b0 = 0;
  *(uint32_t*)0x2000000004b4 = 0;
  *(uint64_t*)0x2000000004b8 = 0;
  *(uint64_t*)0x2000000004c0 = 0;
  *(uint32_t*)0x2000000004c8 = 0x10;
  *(uint32_t*)0x2000000004cc = 0;
  *(uint32_t*)0x2000000004d0 = 0;
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000440ul, /*size=*/0x94ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000,
          /*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=*/0x1000, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  loop();
  return 0;
}