// https://syzkaller.appspot.com/bug?id=8fa72f6bf8ed852bab30490a709dbb7916a68eba
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

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

#ifndef __NR_bpf
#define __NR_bpf 321
#endif
#ifndef __NR_io_uring_enter
#define __NR_io_uring_enter 426
#endif
#ifndef __NR_io_uring_setup
#define __NR_io_uring_setup 425
#endif
#ifndef __NR_seccomp
#define __NR_seccomp 317
#endif

static __thread int clone_ongoing;
static __thread int skip_segv;
static __thread jmp_buf segv_env;

static void segv_handler(int sig, siginfo_t* info, void* ctx)
{
  if (__atomic_load_n(&clone_ongoing, __ATOMIC_RELAXED) != 0) {
    exit(sig);
  }
  uintptr_t addr = (uintptr_t)info->si_addr;
  const uintptr_t prog_start = 1 << 20;
  const uintptr_t prog_end = 100 << 20;
  int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0;
  int valid = addr < prog_start || addr > prog_end;
  if (skip && valid) {
    _longjmp(segv_env, 1);
  }
  exit(sig);
}

static void install_segv_handler(void)
{
  struct sigaction sa;
  memset(&sa, 0, sizeof(sa));
  sa.sa_handler = SIG_IGN;
  syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8);
  syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8);
  memset(&sa, 0, sizeof(sa));
  sa.sa_sigaction = segv_handler;
  sa.sa_flags = SA_NODEFER | SA_SIGINFO;
  sigaction(SIGSEGV, &sa, NULL);
  sigaction(SIGBUS, &sa, NULL);
}

#define NONFAILING(...)                                                        \
  ({                                                                           \
    int ok = 1;                                                                \
    __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    if (_setjmp(segv_env) == 0) {                                              \
      __VA_ARGS__;                                                             \
    } else                                                                     \
      ok = 0;                                                                  \
    __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST);                       \
    ok;                                                                        \
  })

uint64_t r[1] = {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;
  install_segv_handler();
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  signalfd arguments: [
  //    fd: fd (resource)
  //    mask: ptr[in, sigset_t] {
  //      sigset_t {
  //        mask: array[intptr] {
  //          intptr = 0x7fffffff (8 bytes)
  //        }
  //      }
  //    }
  //    size: len = 0x8 (8 bytes)
  //  ]
  //  returns fd
  NONFAILING(*(uint64_t*)0x2000000002c0 = 0x7fffffff);
  syscall(__NR_signalfd, /*fd=*/(intptr_t)-1, /*mask=*/0x2000000002c0ul,
          /*size=*/8ul);
  //  prctl$PR_SET_MM_MAP arguments: [
  //    option: const = 0x23 (8 bytes)
  //    opt: const = 0xe (8 bytes)
  //    arg: ptr[in, prctl_mm_map] {
  //      prctl_mm_map {
  //        start_code: VMA[0x1000]
  //        end_code: VMA[0x3000]
  //        start_data: VMA[0x4000]
  //        end_data: VMA[0x4000]
  //        start_brk: VMA[0x4000]
  //        brk: VMA[0x3000]
  //        start_stack: VMA[0x3000]
  //        arg_start: VMA[0xc000]
  //        arg_end: VMA[0x1000]
  //        env_start: VMA[0x1000]
  //        env_end: VMA[0x2000]
  //        auxv: nil
  //        auxv_size: bytesize = 0x0 (4 bytes)
  //        exe_fd: fd (resource)
  //      }
  //    }
  //    len: bytesize = 0x68 (8 bytes)
  //  ]
  NONFAILING(*(uint64_t*)0x200000000080 = 0x200000ff0000);
  NONFAILING(*(uint64_t*)0x200000000088 = 0x200000ffd000);
  NONFAILING(*(uint64_t*)0x200000000090 = 0x200000ffc000);
  NONFAILING(*(uint64_t*)0x200000000098 = 0x200000ffc000);
  NONFAILING(*(uint64_t*)0x2000000000a0 = 0x200000ff8000);
  NONFAILING(*(uint64_t*)0x2000000000a8 = 0x200000ff8000);
  NONFAILING(*(uint64_t*)0x2000000000b0 = 0x200000ffb000);
  NONFAILING(*(uint64_t*)0x2000000000b8 = 0x20000068c000);
  NONFAILING(*(uint64_t*)0x2000000000c0 = 0x200000817000);
  NONFAILING(*(uint64_t*)0x2000000000c8 = 0x200000ffa000);
  NONFAILING(*(uint64_t*)0x2000000000d0 = 0x200000ffa000);
  NONFAILING(*(uint64_t*)0x2000000000d8 = 0);
  NONFAILING(*(uint32_t*)0x2000000000e0 = 0);
  NONFAILING(*(uint32_t*)0x2000000000e4 = -1);
  syscall(__NR_prctl, /*option=*/0x23ul, /*opt=*/0xeul,
          /*arg=*/0x200000000080ul, /*len=*/0x68ul, 0);
  //  sendmsg$NFT_BATCH arguments: [
  //    fd: sock_nl_netfilter (resource)
  //    msg: ptr[in, msghdr_netlink[nft_batch_msg]] {
  //      msghdr_netlink[nft_batch_msg] {
  //        addr: nil
  //        addrlen: len = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //        vec: nil
  //        vlen: const = 0x1 (8 bytes)
  //        ctrl: const = 0x0 (8 bytes)
  //        ctrllen: const = 0x0 (8 bytes)
  //        f: send_flags = 0x0 (4 bytes)
  //        pad = 0x0 (4 bytes)
  //      }
  //    }
  //    f: send_flags = 0x0 (8 bytes)
  //  ]
  NONFAILING(*(uint64_t*)0x200000000080 = 0);
  NONFAILING(*(uint32_t*)0x200000000088 = 0);
  NONFAILING(*(uint64_t*)0x200000000090 = 0);
  NONFAILING(*(uint64_t*)0x200000000098 = 1);
  NONFAILING(*(uint64_t*)0x2000000000a0 = 0);
  NONFAILING(*(uint64_t*)0x2000000000a8 = 0);
  NONFAILING(*(uint32_t*)0x2000000000b0 = 0);
  syscall(__NR_sendmsg, /*fd=*/(intptr_t)-1, /*msg=*/0x200000000080ul,
          /*f=*/0ul);
  //  io_uring_setup arguments: [
  //    entries: int32 = 0x7 (4 bytes)
  //    params: ptr[inout, io_uring_params] {
  //      io_uring_params {
  //        sq_entries: int32 = 0x0 (4 bytes)
  //        cq_entries: int32 = 0x723a (4 bytes)
  //        flags: io_uring_setup_flags = 0xc000 (4 bytes)
  //        sq_thread_cpu: int32 = 0x8 (4 bytes)
  //        sq_thread_idle: int32 = 0xc1 (4 bytes)
  //        features: int32 = 0x0 (4 bytes)
  //        wq_fd: fd_io_uring (resource)
  //        resv: buffer: {00 00 00 00 00 00 00 00 00 00 00 00} (length 0xc)
  //        sq_off: io_sqring_offsets {
  //          head: int32 = 0x0 (4 bytes)
  //          tail: int32 = 0x0 (4 bytes)
  //          ring_mask: int32 = 0x0 (4 bytes)
  //          ring_entries: int32 = 0x0 (4 bytes)
  //          flags: int32 = 0x0 (4 bytes)
  //          dropped: int32 = 0x0 (4 bytes)
  //          array: int32 = 0x0 (4 bytes)
  //          resv1: int32 = 0x0 (4 bytes)
  //          user_addr: int64 = 0x0 (8 bytes)
  //        }
  //        cq_off: io_cqring_offsets {
  //          head: int32 = 0x0 (4 bytes)
  //          tail: int32 = 0x0 (4 bytes)
  //          ring_mask: int32 = 0x0 (4 bytes)
  //          ring_entries: int32 = 0x0 (4 bytes)
  //          overflow: int32 = 0x0 (4 bytes)
  //          cqes: int32 = 0x0 (4 bytes)
  //          flags: int32 = 0x0 (4 bytes)
  //          resv1: int32 = 0x0 (4 bytes)
  //          user_addr: int64 = 0x0 (8 bytes)
  //        }
  //      }
  //    }
  //  ]
  //  returns fd_io_uring
  NONFAILING(*(uint32_t*)0x200000000044 = 0x723a);
  NONFAILING(*(uint32_t*)0x200000000048 = 0xc000);
  NONFAILING(*(uint32_t*)0x20000000004c = 8);
  NONFAILING(*(uint32_t*)0x200000000050 = 0xc1);
  NONFAILING(*(uint32_t*)0x200000000058 = -1);
  NONFAILING(memset((void*)0x20000000005c, 0, 12));
  res =
      syscall(__NR_io_uring_setup, /*entries=*/7, /*params=*/0x200000000040ul);
  if (res != -1)
    r[0] = res;
  //  bpf$PROG_LOAD arguments: [
  //    cmd: const = 0x5 (8 bytes)
  //    arg: ptr[in, bpf_prog_t[flags[bpf_prog_type, int32],
  //    bpf_prog_attach_types, bpf_btf_id[opt], fd_bpf_prog[opt]]] {
  //      bpf_prog_t[flags[bpf_prog_type, int32], bpf_prog_attach_types,
  //      bpf_btf_id[opt], fd_bpf_prog[opt]] {
  //        type: bpf_prog_type = 0x12 (4 bytes)
  //        ninsn: bytesize8 = 0x3 (4 bytes)
  //        insns: nil
  //        license: ptr[in, buffer] {
  //          buffer: {73 79 7a 6b 61 6c 6c 65 72 00} (length 0xa)
  //        }
  //        loglev: int32 = 0x80000000 (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:
  //        union bpf_prog_attach_types {
  //          fallback: bpf_attach_types = 0x2e (4 bytes)
  //        }
  //        btf_fd: fd_btf (resource)
  //        func_info_rec_size: const = 0x0 (4 bytes)
  //        func_info: nil
  //        func_info_cnt: len = 0x0 (4 bytes)
  //        line_info_rec_size: const = 0x0 (4 bytes)
  //        line_info: nil
  //        line_info_cnt: len = 0x0 (4 bytes)
  //        attach_btf_id: bpf_btf_id (resource)
  //        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 = 0x10 (4 bytes)
  //        log_true_size: int32 = 0x0 (4 bytes)
  //        prog_token_fd: union _bpf_prog_t[flags[bpf_prog_type, int32],
  //        bpf_prog_attach_types, bpf_btf_id[opt],
  //        fd_bpf_prog[opt]]_prog_token_fd_wrapper {
  //          void: buffer: {} (length 0x0)
  //        }
  //        pad: union _bpf_prog_t[flags[bpf_prog_type, int32],
  //        bpf_prog_attach_types, bpf_btf_id[opt],
  //        fd_bpf_prog[opt]]_pad_wrapper {
  //          value: const = 0x0 (4 bytes)
  //        }
  //      }
  //    }
  //    size: len = 0x94 (8 bytes)
  //  ]
  //  returns fd_bpf_prog
  NONFAILING(*(uint32_t*)0x200000000000 = 0x12);
  NONFAILING(*(uint32_t*)0x200000000004 = 3);
  NONFAILING(*(uint64_t*)0x200000000008 = 0);
  NONFAILING(*(uint64_t*)0x200000000010 = 0x200000000240);
  NONFAILING(memcpy((void*)0x200000000240, "syzkaller\000", 10));
  NONFAILING(*(uint32_t*)0x200000000018 = 0x80000000);
  NONFAILING(*(uint32_t*)0x20000000001c = 0);
  NONFAILING(*(uint64_t*)0x200000000020 = 0);
  NONFAILING(*(uint32_t*)0x200000000028 = 0);
  NONFAILING(*(uint32_t*)0x20000000002c = 0);
  NONFAILING(memset((void*)0x200000000030, 0, 16));
  NONFAILING(*(uint32_t*)0x200000000040 = 0);
  NONFAILING(*(uint32_t*)0x200000000044 = 0x2e);
  NONFAILING(*(uint32_t*)0x200000000048 = 0);
  NONFAILING(*(uint32_t*)0x20000000004c = 0);
  NONFAILING(*(uint64_t*)0x200000000050 = 0);
  NONFAILING(*(uint32_t*)0x200000000058 = 0);
  NONFAILING(*(uint32_t*)0x20000000005c = 0);
  NONFAILING(*(uint64_t*)0x200000000060 = 0);
  NONFAILING(*(uint32_t*)0x200000000068 = 0);
  NONFAILING(*(uint32_t*)0x20000000006c = 0);
  NONFAILING(*(uint32_t*)0x200000000070 = 0);
  NONFAILING(*(uint32_t*)0x200000000074 = 0);
  NONFAILING(*(uint64_t*)0x200000000078 = 0);
  NONFAILING(*(uint64_t*)0x200000000080 = 0);
  NONFAILING(*(uint32_t*)0x200000000088 = 0x10);
  NONFAILING(*(uint32_t*)0x20000000008c = 0);
  NONFAILING(*(uint32_t*)0x200000000090 = 0);
  syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200000000000ul, /*size=*/0x94ul);
  //  bpf$MAP_CREATE arguments: [
  //    cmd: const = 0x0 (8 bytes)
  //    arg: ptr[inout, array[ANYUNION]] {
  //      array[ANYUNION] {
  //        union ANYUNION {
  //          ANYBLOB: buffer: {16} (length 0x1)
  //        }
  //      }
  //    }
  //    size: len = 0x50 (8 bytes)
  //  ]
  //  returns fd_bpf_map
  NONFAILING(memset((void*)0x200000000000, 22, 1));
  syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x200000000000ul, /*size=*/0x50ul);
  //  io_uring_enter arguments: [
  //    fd: fd_io_uring (resource)
  //    to_submit: int32 = 0x2219 (4 bytes)
  //    min_complete: int32 = 0x7721 (4 bytes)
  //    flags: io_uring_enter_flags = 0x16 (8 bytes)
  //    sigmask: nil
  //    size: len = 0x0 (8 bytes)
  //  ]
  syscall(
      __NR_io_uring_enter, /*fd=*/r[0], /*to_submit=*/0x2219,
      /*min_complete=*/0x7721,
      /*flags=IORING_ENTER_REGISTERED_RING|IORING_ENTER_SQ_WAIT|IORING_ENTER_SQ_WAKEUP*/
      0x16ul, /*sigmask=*/0ul, /*size=*/0ul);
  //  seccomp$SECCOMP_SET_MODE_FILTER_LISTENER arguments: [
  //    op: const = 0x1 (8 bytes)
  //    flags: seccomp_flags_listener = 0x7 (8 bytes)
  //    arg: ptr[in, sock_fprog] {
  //      sock_fprog {
  //        len: len = 0x1 (2 bytes)
  //        pad = 0x0 (6 bytes)
  //        filter: ptr[in, array[sock_filter]] {
  //          array[sock_filter] {
  //            sock_filter {
  //              code: int16 = 0x6 (2 bytes)
  //              jt: int8 = 0x5 (1 bytes)
  //              jf: int8 = 0x3 (1 bytes)
  //              k: int32 = 0x7ffbffff (4 bytes)
  //            }
  //          }
  //        }
  //      }
  //    }
  //  ]
  //  returns fd_seccomp
  NONFAILING(*(uint16_t*)0x200000000240 = 1);
  NONFAILING(*(uint64_t*)0x200000000248 = 0x200000000000);
  NONFAILING(*(uint16_t*)0x200000000000 = 6);
  NONFAILING(*(uint8_t*)0x200000000002 = 5);
  NONFAILING(*(uint8_t*)0x200000000003 = 3);
  NONFAILING(*(uint32_t*)0x200000000004 = 0x7ffbffff);
  syscall(__NR_seccomp, /*op=*/1ul, /*flags=*/7ul, /*arg=*/0x200000000240ul);
  return 0;
}