// https://syzkaller.appspot.com/bug?id=d35b65ad698a259006394c0ef8dab69e26d2e108
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <errno.h>
#include <fcntl.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/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

#ifndef __NR_bpf
#define __NR_bpf 321
#endif

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 int inject_fault(int nth)
{
  int fd;
  fd = open("/proc/thread-self/fail-nth", O_RDWR);
  if (fd == -1)
    exit(1);
  char buf[16];
  sprintf(buf, "%d", nth);
  if (write(fd, buf, strlen(buf)) != (ssize_t)strlen(buf))
    exit(1);
  return fd;
}

static const char* setup_fault()
{
  int fd = open("/proc/self/make-it-fail", O_WRONLY);
  if (fd == -1)
    return "CONFIG_FAULT_INJECTION is not enabled";
  close(fd);
  fd = open("/proc/thread-self/fail-nth", O_WRONLY);
  if (fd == -1)
    return "kernel does not have systematic fault injection support";
  close(fd);
  static struct {
    const char* file;
    const char* val;
    bool fatal;
  } files[] = {
      {"/sys/kernel/debug/failslab/ignore-gfp-wait", "N", true},
      {"/sys/kernel/debug/fail_futex/ignore-private", "N", false},
      {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", "N", false},
      {"/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", "N", false},
      {"/sys/kernel/debug/fail_page_alloc/min-order", "0", false},
  };
  unsigned i;
  for (i = 0; i < sizeof(files) / sizeof(files[0]); i++) {
    if (!write_file(files[i].file, files[i].val)) {
      if (files[i].fatal)
        return "failed to write fault injection file";
    }
  }
  return NULL;
}

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

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;
  if ((reason = setup_fault()))
    printf("the reproducer may not work as expected: fault injection setup "
           "failed: %s\n",
           reason);
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  bpf$MAP_CREATE_RINGBUF arguments: [
  //    cmd: const = 0x0 (8 bytes)
  //    arg: ptr[in, bpf_map_create_arg_t[const[BPF_MAP_TYPE_RINGBUF, int32],
  //    const[0, int32], const[0, int32], int32, const[0, int32], const[0,
  //    int64]]] {
  //      bpf_map_create_arg_t[const[BPF_MAP_TYPE_RINGBUF, int32], const[0,
  //      int32], const[0, int32], int32, const[0, int32], const[0, int64]] {
  //        type: const = 0x1b (4 bytes)
  //        ksize: const = 0x0 (4 bytes)
  //        vsize: const = 0x0 (4 bytes)
  //        max: int32 = 0x8000 (4 bytes)
  //        flags: const = 0x0 (4 bytes)
  //        inner: fd_bpf_map (resource)
  //        node: int32 = 0x0 (4 bytes)
  //        map_name: buffer: {00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00}
  //        (length 0x10) map_ifindex: ifindex (resource) btf_fd: fd_btf
  //        (resource) btf_key_type_id: int32 = 0x0 (4 bytes) btf_value_type_id:
  //        int32 = 0x0 (4 bytes) btf_vmlinux_type_id: int32 = 0x0 (4 bytes)
  //        map_extra: const = 0x0 (8 bytes)
  //        value_type_btf_obj_fd: union
  //        _bpf_map_create_arg_t[const[BPF_MAP_TYPE_RINGBUF, int32], const[0,
  //        int32], const[0, int32], int32, const[0, int32], const[0,
  //        int64]]_value_type_btf_obj_fd_wrapper {
  //          void: buffer: {} (length 0x0)
  //        }
  //        pad1: union _bpf_map_create_arg_t[const[BPF_MAP_TYPE_RINGBUF,
  //        int32], const[0, int32], const[0, int32], int32, const[0, int32],
  //        const[0, int64]]_pad1_wrapper {
  //          value: const = 0x0 (4 bytes)
  //        }
  //        map_token_fd: union
  //        _bpf_map_create_arg_t[const[BPF_MAP_TYPE_RINGBUF, int32], const[0,
  //        int32], const[0, int32], int32, const[0, int32], const[0,
  //        int64]]_map_token_fd_wrapper {
  //          void: buffer: {} (length 0x0)
  //        }
  //        pad2: union _bpf_map_create_arg_t[const[BPF_MAP_TYPE_RINGBUF,
  //        int32], const[0, int32], const[0, int32], int32, const[0, int32],
  //        const[0, int64]]_pad2_wrapper {
  //          value: const = 0x0 (4 bytes)
  //        }
  //      }
  //    }
  //    size: len = 0x48 (8 bytes)
  //  ]
  //  returns ringbuf_map_fd
  *(uint32_t*)0x200000000180 = 0x1b;
  *(uint32_t*)0x200000000184 = 0;
  *(uint32_t*)0x200000000188 = 0;
  *(uint32_t*)0x20000000018c = 0x8000;
  *(uint32_t*)0x200000000190 = 0;
  *(uint32_t*)0x200000000194 = 0;
  *(uint32_t*)0x200000000198 = 0;
  memset((void*)0x20000000019c, 0, 16);
  *(uint32_t*)0x2000000001ac = 0;
  *(uint32_t*)0x2000000001b0 = 0;
  *(uint32_t*)0x2000000001b4 = 0;
  *(uint32_t*)0x2000000001b8 = 0;
  *(uint32_t*)0x2000000001bc = 0;
  *(uint64_t*)0x2000000001c0 = 0;
  *(uint32_t*)0x2000000001c8 = 0;
  *(uint32_t*)0x2000000001cc = 0;
  res =
      syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x200000000180ul, /*size=*/0x48ul);
  if (res != -1)
    r[0] = res;
  //  bpf$BPF_BTF_LOAD arguments: [
  //    cmd: const = 0x12 (8 bytes)
  //    arg: ptr[in, bpf_btf_load] {
  //      bpf_btf_load {
  //        btf: ptr[inout, array[ANYUNION]] {
  //          array[ANYUNION] {
  //            union ANYUNION {
  //              ANYBLOB: buffer: {9f eb 01 00 18 00 00 00 00 00 00 00 18 00 00
  //              00 18 00 00 00 04 00 00 00 02 00 00 00 01 00 00 0c 02 00 00 00
  //              00 00 00 00 00 00 00 0d 00 00 00 00 00 00 5f} (length 0x33)
  //            }
  //          }
  //        }
  //        btf_log_buf: nil
  //        btf_size: bytesize = 0x34 (4 bytes)
  //        btf_log_size: bytesize = 0x0 (4 bytes)
  //        btf_log_level: int32 = 0x0 (4 bytes)
  //        btf_log_true_size: int32 = 0x0 (4 bytes)
  //        btf_flags: btf_load_flags = 0x0 (4 bytes)
  //        btf_token_fd: union _bpf_btf_load_btf_token_fd_wrapper {
  //          void: buffer: {} (length 0x0)
  //        }
  //        pad: union _bpf_btf_load_pad_wrapper {
  //          value: const = 0x0 (4 bytes)
  //        }
  //      }
  //    }
  //    size: len = 0x28 (8 bytes)
  //  ]
  //  returns fd_btf
  *(uint64_t*)0x200000000240 = 0x200000000300;
  memcpy((void*)0x200000000300,
         "\x9f\xeb\x01\x00\x18\x00\x00\x00\x00\x00\x00\x00\x18\x00\x00\x00\x18"
         "\x00\x00\x00\x04\x00\x00\x00\x02\x00\x00\x00\x01\x00\x00\x0c\x02\x00"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0d\x00\x00\x00\x00\x00\x00\x5f",
         51);
  *(uint64_t*)0x200000000248 = 0;
  *(uint32_t*)0x200000000250 = 0x34;
  *(uint32_t*)0x200000000254 = 0;
  *(uint32_t*)0x200000000258 = 0;
  *(uint32_t*)0x20000000025c = 0;
  *(uint32_t*)0x200000000260 = 0;
  *(uint32_t*)0x200000000264 = 0;
  res = syscall(__NR_bpf, /*cmd=*/0x12ul, /*arg=*/0x200000000240ul,
                /*size=*/0x28ul);
  if (res != -1)
    r[1] = res;
  //  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 = 0x3 (4 bytes)
  //        insns: ptr[inout, array[ANYUNION]] {
  //          array[ANYUNION] {
  //            union ANYUNION {
  //              ANYBLOB: buffer: {18 00 00 00 01 00 00 00 00 00 00 00 80 18 00
  //              00 95 00 00 00 00 00 00 00} (length 0x18)
  //            }
  //          }
  //        }
  //        license: ptr[in, buffer] {
  //          buffer: {47 50 4c 00} (length 0x4)
  //        }
  //        loglev: int32 = 0x0 (4 bytes)
  //        logsize: len = 0x0 (4 bytes)
  //        log: nil
  //        kern_version: bpf_kern_version = 0x0 (4 bytes)
  //        flags: bpf_prog_load_flags = 0x0 (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: ptr[in, bpf_func_info] {
  //          bpf_func_info {
  //            insn_off: int32 = 0x0 (4 bytes)
  //            type_id: int32 = 0x1 (4 bytes)
  //          }
  //        }
  //        func_info_cnt: len = 0x1 (4 bytes)
  //        line_info_rec_size: const = 0x0 (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 = 0x0 (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*)0x200000000500 = 0x11;
  *(uint32_t*)0x200000000504 = 3;
  *(uint64_t*)0x200000000508 = 0x2000000005c0;
  memcpy((void*)0x2000000005c0,
         "\x18\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x80\x18\x00\x00\x95"
         "\x00\x00\x00\x00\x00\x00\x00",
         24);
  *(uint64_t*)0x200000000510 = 0x200000000600;
  memcpy((void*)0x200000000600, "GPL\000", 4);
  *(uint32_t*)0x200000000518 = 0;
  *(uint32_t*)0x20000000051c = 0;
  *(uint64_t*)0x200000000520 = 0;
  *(uint32_t*)0x200000000528 = 0;
  *(uint32_t*)0x20000000052c = 0;
  memset((void*)0x200000000530, 0, 16);
  *(uint32_t*)0x200000000540 = 0;
  *(uint32_t*)0x200000000544 = 0;
  *(uint32_t*)0x200000000548 = r[1];
  *(uint32_t*)0x20000000054c = 8;
  *(uint64_t*)0x200000000550 = 0x200000000640;
  *(uint32_t*)0x200000000640 = 0;
  *(uint32_t*)0x200000000644 = 1;
  *(uint32_t*)0x200000000558 = 1;
  *(uint32_t*)0x20000000055c = 0;
  *(uint64_t*)0x200000000560 = 0;
  *(uint32_t*)0x200000000568 = 0;
  *(uint32_t*)0x20000000056c = 0;
  *(uint32_t*)0x200000000570 = 0;
  *(uint32_t*)0x200000000574 = 0;
  *(uint64_t*)0x200000000578 = 0;
  *(uint64_t*)0x200000000580 = 0;
  *(uint32_t*)0x200000000588 = 0;
  *(uint32_t*)0x20000000058c = 0;
  *(uint32_t*)0x200000000590 = 0;
  res =
      syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000500ul, /*size=*/0x94ul);
  if (res != -1)
    r[2] = res;
  //  bpf$BPF_PROG_WITH_BTFID_LOAD arguments: [
  //    cmd: const = 0x5 (8 bytes)
  //    arg: ptr[in, bpf_prog_with_btfid] {
  //      union bpf_prog_with_btfid {
  //        bpf_tracing: bpf_prog_t[const[BPF_PROG_TYPE_TRACING, int32],
  //        flags[bpf_tracing_attach_types, int32], int32[0:BTF_ID_MAX],
  //        fd_bpf_prog[opt]] {
  //          type: const = 0x1a (4 bytes)
  //          ninsn: bytesize8 = 0xf (4 bytes)
  //          insns: ptr[inout, array[ANYUNION]] {
  //            array[ANYUNION] {
  //              union ANYUNION {
  //                ANYBLOB: buffer: {18 00 00 00 00 00 00 00 00 00 00 00 00 00
  //                00 00 18 11 00 00} (length 0x14)
  //              }
  //              union ANYUNION {
  //                ANYRES32: ANYRES32 (resource)
  //              }
  //              union ANYUNION {
  //                ANYBLOB: buffer: {00 00 00 00 00 00 00 00 b7 02 00 00 14 00
  //                00 00 b7 03 00 00 00 00 00 00 a5 00 00 00 83 00 00 00 bf 09
  //                00 00 00 00 00 00 55 09 01 00 00 00 00 00 95 00 00 00 00 00
  //                00 00 bf 91 00 00 00 00 00 00 b7 02 00 00 01 00 00 00 85 00
  //                00 00 84 00 00 00 b7 00 00 00 00 00 00 00 95} (length 0x59)
  //              }
  //            }
  //          }
  //          license: ptr[in, buffer] {
  //            buffer: {47 50 4c 00} (length 0x4)
  //          }
  //          loglev: int32 = 0x0 (4 bytes)
  //          logsize: len = 0x0 (4 bytes)
  //          log: nil
  //          kern_version: bpf_kern_version = 0x40f00 (4 bytes)
  //          flags: bpf_prog_load_flags = 0x0 (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: bpf_tracing_attach_types = 0x19 (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: int32 = 0x1 (4 bytes)
  //          attach_prog_fd: fd_bpf_prog (resource)
  //          core_relo_cnt: len = 0x0 (4 bytes)
  //          fd_array: nil
  //          core_relos: nil
  //          core_relo_rec_size: const = 0x0 (4 bytes)
  //          log_true_size: int32 = 0x0 (4 bytes)
  //          prog_token_fd: union _bpf_prog_t[const[BPF_PROG_TYPE_TRACING,
  //          int32], flags[bpf_tracing_attach_types, int32],
  //          int32[0:BTF_ID_MAX], fd_bpf_prog[opt]]_prog_token_fd_wrapper {
  //            void: buffer: {} (length 0x0)
  //          }
  //          pad: union _bpf_prog_t[const[BPF_PROG_TYPE_TRACING, int32],
  //          flags[bpf_tracing_attach_types, int32], int32[0:BTF_ID_MAX],
  //          fd_bpf_prog[opt]]_pad_wrapper {
  //            value: const = 0x0 (4 bytes)
  //          }
  //        }
  //      }
  //    }
  //    size: len = 0x94 (8 bytes)
  //  ]
  //  returns fd_bpf_prog_with_btfid
  *(uint32_t*)0x200000000680 = 0x1a;
  *(uint32_t*)0x200000000684 = 0xf;
  *(uint64_t*)0x200000000688 = 0x200000000740;
  memcpy((void*)0x200000000740,
         "\x18\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x18"
         "\x11\x00\x00",
         20);
  *(uint32_t*)0x200000000754 = r[0];
  memcpy(
      (void*)0x200000000758,
      "\x00\x00\x00\x00\x00\x00\x00\x00\xb7\x02\x00\x00\x14\x00\x00\x00\xb7\x03"
      "\x00\x00\x00\x00\x00\x00\xa5\x00\x00\x00\x83\x00\x00\x00\xbf\x09\x00\x00"
      "\x00\x00\x00\x00\x55\x09\x01\x00\x00\x00\x00\x00\x95\x00\x00\x00\x00\x00"
      "\x00\x00\xbf\x91\x00\x00\x00\x00\x00\x00\xb7\x02\x00\x00\x01\x00\x00\x00"
      "\x85\x00\x00\x00\x84\x00\x00\x00\xb7\x00\x00\x00\x00\x00\x00\x00\x95",
      89);
  *(uint64_t*)0x200000000690 = 0x2000000007c0;
  memcpy((void*)0x2000000007c0, "GPL\000", 4);
  *(uint32_t*)0x200000000698 = 0;
  *(uint32_t*)0x20000000069c = 0;
  *(uint64_t*)0x2000000006a0 = 0;
  *(uint32_t*)0x2000000006a8 = 0x40f00;
  *(uint32_t*)0x2000000006ac = 0;
  memset((void*)0x2000000006b0, 0, 16);
  *(uint32_t*)0x2000000006c0 = 0;
  *(uint32_t*)0x2000000006c4 = 0x19;
  *(uint32_t*)0x2000000006c8 = r[1];
  *(uint32_t*)0x2000000006cc = 8;
  *(uint64_t*)0x2000000006d0 = 0;
  *(uint32_t*)0x2000000006d8 = 0;
  *(uint32_t*)0x2000000006dc = 0x10;
  *(uint64_t*)0x2000000006e0 = 0;
  *(uint32_t*)0x2000000006e8 = 0;
  *(uint32_t*)0x2000000006ec = 1;
  *(uint32_t*)0x2000000006f0 = r[2];
  *(uint32_t*)0x2000000006f4 = 0;
  *(uint64_t*)0x2000000006f8 = 0;
  *(uint64_t*)0x200000000700 = 0;
  *(uint32_t*)0x200000000708 = 0;
  *(uint32_t*)0x20000000070c = 0;
  *(uint32_t*)0x200000000710 = 0;
  res =
      syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000680ul, /*size=*/0x94ul);
  if (res != -1)
    r[3] = res;
  //  close arguments: [
  //    fd: fd (resource)
  //  ]
  syscall(__NR_close, /*fd=*/3);
  //  bpf$OBJ_PIN_PROG arguments: [
  //    cmd: const = 0x11 (8 bytes)
  //    arg: ptr[in, bpf_obj_pin_prog] {
  //      union bpf_obj_pin_prog {
  //        generic: bpf_obj_pin_prog_generic {
  //          path: nil
  //          fd: fd_bpf_prog (resource)
  //          flags: const = 0x0 (4 bytes)
  //          path_fd: const = 0x0 (4 bytes)
  //          pad = 0x0 (4 bytes)
  //        }
  //      }
  //    }
  //    size: len = 0x18 (8 bytes)
  //  ]
  *(uint64_t*)0x200000000800 = 0;
  *(uint32_t*)0x200000000808 = r[3];
  *(uint32_t*)0x20000000080c = 0;
  *(uint32_t*)0x200000000810 = 0;
  syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x200000000800ul, /*size=*/0x18ul);
  //  close arguments: [
  //    fd: fd (resource)
  //  ]
  inject_fault(1);
  syscall(__NR_close, /*fd=*/3);
  return 0;
}