map[SimplifiedCRepro:// 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/mount.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>
#ifndef __NR_bpf
#define __NR_bpf 321
#endif
#define BITMASK(bf_off,bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type,htobe,addr,val,bf_off,bf_len) *(type*)(addr) = htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) | (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))
uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};
int main(void)
{
syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul);
syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*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=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul);
const char* reason;
(void)reason;
intptr_t res = 0;
if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {}
// bpf$MAP_CREATE arguments: [
// cmd: const = 0x0 (8 bytes)
// arg: ptr[in, bpf_map_create_arg] {
// union bpf_map_create_arg {
// base: bpf_map_create_arg_t[flags[bpf_map_type, int32], int32, int32, int32, flags[map_flags, int32], const[0, int64]] {
// type: bpf_map_type = 0xf (4 bytes)
// ksize: int32 = 0x4 (4 bytes)
// vsize: int32 = 0x4 (4 bytes)
// max: int32 = 0x12 (4 bytes)
// flags: map_flags = 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[flags[bpf_map_type, int32], int32, int32, int32, flags[map_flags, int32], const[0, int64]]_value_type_btf_obj_fd_wrapper {
// void: buffer: {} (length 0x0)
// }
// pad1: union _bpf_map_create_arg_t[flags[bpf_map_type, int32], int32, int32, int32, flags[map_flags, int32], const[0, int64]]_pad1_wrapper {
// value: const = 0x0 (4 bytes)
// }
// map_token_fd: union _bpf_map_create_arg_t[flags[bpf_map_type, int32], int32, int32, int32, flags[map_flags, int32], const[0, int64]]_map_token_fd_wrapper {
// void: buffer: {} (length 0x0)
// }
// pad2: union _bpf_map_create_arg_t[flags[bpf_map_type, int32], int32, int32, int32, flags[map_flags, int32], const[0, int64]]_pad2_wrapper {
// value: const = 0x0 (4 bytes)
// }
// }
// }
// }
// size: len = 0x48 (8 bytes)
// ]
// returns fd_bpf_map
*(uint32_t*)0x200000000200 = 0xf;
*(uint32_t*)0x200000000204 = 4;
*(uint32_t*)0x200000000208 = 4;
*(uint32_t*)0x20000000020c = 0x12;
*(uint32_t*)0x200000000210 = 0;
*(uint32_t*)0x200000000214 = -1;
*(uint32_t*)0x200000000218 = 0;
memset((void*)0x20000000021c, 0, 16);
*(uint32_t*)0x20000000022c = 0;
*(uint32_t*)0x200000000230 = -1;
*(uint32_t*)0x200000000234 = 0;
*(uint32_t*)0x200000000238 = 0;
*(uint32_t*)0x20000000023c = 0;
*(uint64_t*)0x200000000240 = 0;
*(uint32_t*)0x200000000248 = 0;
*(uint32_t*)0x20000000024c = 0;
res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x200000000200ul, /*size=*/0x48ul);
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 = 0x11 (4 bytes)
// ninsn: bytesize8 = 0xc (4 bytes)
// insns: ptr[in, bpf_instructions] {
// union bpf_instructions {
// framed: bpf_framed_program {
// initr0: bpf_insn_init_r0 {
// code: const = 0x18 (1 bytes)
// dst: const = 0x0 (0 bytes)
// src: const = 0x0 (1 bytes)
// off: const = 0x0 (2 bytes)
// imm: int32 = 0x0 (4 bytes)
// code2: const = 0x0 (1 bytes)
// regs2: const = 0x0 (1 bytes)
// off2: const = 0x0 (2 bytes)
// imm2: int32 = 0x0 (4 bytes)
// }
// body: array[bpf_insn] {
// union bpf_insn {
// ringbuf_output: bpf_insn_ringbuf_output {
// insn1: bpf_insn_map_fd_t[const[BPF_REG_1, int8:4], tail_call_map] {
// code: const = 0x18 (1 bytes)
// dst: const = 0x1 (0 bytes)
// src: const = 0x1 (1 bytes)
// off: const = 0x0 (2 bytes)
// imm: tail_call_map (resource)
// code2: const = 0x0 (1 bytes)
// regs2: const = 0x0 (1 bytes)
// off2: const = 0x0 (2 bytes)
// imm2: const = 0x0 (4 bytes)
// }
// insn2: bpf_insn_alu_t[BPF_ALU64, BPF_K0, BPF_MOV0, const[BPF_REG_8, int8:4], const[0, int8:4], const[0, int16], int32] {
// code_class: int8 = 0x7 (0 bytes)
// code_s: int8 = 0x0 (0 bytes)
// code_op: int8 = 0xb (1 bytes)
// dst: const = 0x8 (0 bytes)
// src: const = 0x0 (1 bytes)
// off: const = 0x0 (2 bytes)
// imm: int32 = 0x0 (4 bytes)
// }
// insn3: bpf_insn_ldst_t[BPF_STX, BPF_DW0, BPF_MEM0, const[BPF_REG_10, int8:4], const[BPF_REG_8, int8:4], const[-8, int16], const[0, int32]] {
// code_class: int8 = 0x3 (0 bytes)
// code_size: int8 = 0x3 (0 bytes)
// code_mode: int8 = 0x3 (1 bytes)
// dst: const = 0xa (0 bytes)
// src: const = 0x8 (1 bytes)
// off: const = 0xfff8 (2 bytes)
// imm: const = 0x0 (4 bytes)
// }
// insn4: bpf_insn_alu_t[BPF_ALU64, BPF_X0, BPF_MOV0, const[BPF_REG_2, int8:4], const[BPF_REG_10, int8:4], const[0, int16], const[0, int32]] {
// code_class: int8 = 0x7 (0 bytes)
// code_s: int8 = 0x1 (0 bytes)
// code_op: int8 = 0xb (1 bytes)
// dst: const = 0x2 (0 bytes)
// src: const = 0xa (1 bytes)
// off: const = 0x0 (2 bytes)
// imm: const = 0x0 (4 bytes)
// }
// insn5: bpf_insn_alu_t[BPF_ALU64, BPF_K0, BPF_ADD0, const[BPF_REG_2, int8:4], const[0, int8:4], const[0, int16], const[-8, int32]] {
// code_class: int8 = 0x7 (0 bytes)
// code_s: int8 = 0x0 (0 bytes)
// code_op: int8 = 0x0 (1 bytes)
// dst: const = 0x2 (0 bytes)
// src: const = 0x0 (1 bytes)
// off: const = 0x0 (2 bytes)
// imm: const = 0xfffffff8 (4 bytes)
// }
// insn6: bpf_insn_alu_t[BPF_ALU64, BPF_K0, BPF_MOV0, const[BPF_REG_3, int8:4], const[0, int8:4], const[0, int16], const[8, int32]] {
// code_class: int8 = 0x7 (0 bytes)
// code_s: int8 = 0x0 (0 bytes)
// code_op: int8 = 0xb (1 bytes)
// dst: const = 0x3 (0 bytes)
// src: const = 0x0 (1 bytes)
// off: const = 0x0 (2 bytes)
// imm: const = 0x8 (4 bytes)
// }
// insn7: bpf_insn_alu_t[BPF_ALU64, BPF_K0, BPF_MOV0, const[BPF_REG_4, int8:4], const[0, int8:4], const[0, int16], flags[bpf_ringbuf_wakeup_flags, int32]] {
// code_class: int8 = 0x7 (0 bytes)
// code_s: int8 = 0x0 (0 bytes)
// code_op: int8 = 0xb (1 bytes)
// dst: const = 0x4 (0 bytes)
// src: const = 0x0 (1 bytes)
// off: const = 0x0 (2 bytes)
// imm: bpf_ringbuf_wakeup_flags = 0x0 (4 bytes)
// }
// insn8: bpf_insn_call_helper_t[const[BPF_FUNC_ringbuf_output, int32]] {
// code: const = 0x85 (1 bytes)
// regs: const = 0x0 (1 bytes)
// off: const = 0x0 (2 bytes)
// func: const = 0x3 (4 bytes)
// }
// }
// }
// }
// exit: bpf_insn_exit {
// code: const = 0x95 (1 bytes)
// regs: const = 0x0 (1 bytes)
// off: const = 0x0 (2 bytes)
// imm: const = 0x0 (4 bytes)
// }
// }
// }
// }
// license: ptr[in, buffer] {
// buffer: {73 79 7a 6b 61 6c 6c 65 72 00} (length 0xa)
// }
// 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: union bpf_prog_attach_types {
// fallback: bpf_attach_types = 0x0 (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 = 0x0 (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 = 0x90 (8 bytes)
// ]
// returns fd_bpf_prog
*(uint32_t*)0x2000000000c0 = 0x11;
*(uint32_t*)0x2000000000c4 = 0xc;
*(uint64_t*)0x2000000000c8 = 0x200000000280;
*(uint8_t*)0x200000000280 = 0x18;
STORE_BY_BITMASK(uint8_t, , 0x200000000281, 0, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x200000000281, 0, 4, 4);
*(uint16_t*)0x200000000282 = 0;
*(uint32_t*)0x200000000284 = 0;
*(uint8_t*)0x200000000288 = 0;
*(uint8_t*)0x200000000289 = 0;
*(uint16_t*)0x20000000028a = 0;
*(uint32_t*)0x20000000028c = 0;
*(uint8_t*)0x200000000290 = 0x18;
STORE_BY_BITMASK(uint8_t, , 0x200000000291, 1, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x200000000291, 1, 4, 4);
*(uint16_t*)0x200000000292 = 0;
*(uint32_t*)0x200000000294 = r[0];
*(uint8_t*)0x200000000298 = 0;
*(uint8_t*)0x200000000299 = 0;
*(uint16_t*)0x20000000029a = 0;
*(uint32_t*)0x20000000029c = 0;
STORE_BY_BITMASK(uint8_t, , 0x2000000002a0, 7, 0, 3);
STORE_BY_BITMASK(uint8_t, , 0x2000000002a0, 0, 3, 1);
STORE_BY_BITMASK(uint8_t, , 0x2000000002a0, 0xb, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000000002a1, 8, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000000002a1, 0, 4, 4);
*(uint16_t*)0x2000000002a2 = 0;
*(uint32_t*)0x2000000002a4 = 0;
STORE_BY_BITMASK(uint8_t, , 0x2000000002a8, 3, 0, 3);
STORE_BY_BITMASK(uint8_t, , 0x2000000002a8, 3, 3, 2);
STORE_BY_BITMASK(uint8_t, , 0x2000000002a8, 3, 5, 3);
STORE_BY_BITMASK(uint8_t, , 0x2000000002a9, 0xa, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000000002a9, 8, 4, 4);
*(uint16_t*)0x2000000002aa = 0xfff8;
*(uint32_t*)0x2000000002ac = 0;
STORE_BY_BITMASK(uint8_t, , 0x2000000002b0, 7, 0, 3);
STORE_BY_BITMASK(uint8_t, , 0x2000000002b0, 1, 3, 1);
STORE_BY_BITMASK(uint8_t, , 0x2000000002b0, 0xb, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000000002b1, 2, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000000002b1, 0xa, 4, 4);
*(uint16_t*)0x2000000002b2 = 0;
*(uint32_t*)0x2000000002b4 = 0;
STORE_BY_BITMASK(uint8_t, , 0x2000000002b8, 7, 0, 3);
STORE_BY_BITMASK(uint8_t, , 0x2000000002b8, 0, 3, 1);
STORE_BY_BITMASK(uint8_t, , 0x2000000002b8, 0, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000000002b9, 2, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000000002b9, 0, 4, 4);
*(uint16_t*)0x2000000002ba = 0;
*(uint32_t*)0x2000000002bc = 0xfffffff8;
STORE_BY_BITMASK(uint8_t, , 0x2000000002c0, 7, 0, 3);
STORE_BY_BITMASK(uint8_t, , 0x2000000002c0, 0, 3, 1);
STORE_BY_BITMASK(uint8_t, , 0x2000000002c0, 0xb, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000000002c1, 3, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000000002c1, 0, 4, 4);
*(uint16_t*)0x2000000002c2 = 0;
*(uint32_t*)0x2000000002c4 = 8;
STORE_BY_BITMASK(uint8_t, , 0x2000000002c8, 7, 0, 3);
STORE_BY_BITMASK(uint8_t, , 0x2000000002c8, 0, 3, 1);
STORE_BY_BITMASK(uint8_t, , 0x2000000002c8, 0xb, 4, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000000002c9, 4, 0, 4);
STORE_BY_BITMASK(uint8_t, , 0x2000000002c9, 0, 4, 4);
*(uint16_t*)0x2000000002ca = 0;
*(uint32_t*)0x2000000002cc = 0;
*(uint8_t*)0x2000000002d0 = 0x85;
*(uint8_t*)0x2000000002d1 = 0;
*(uint16_t*)0x2000000002d2 = 0;
*(uint32_t*)0x2000000002d4 = 3;
*(uint8_t*)0x2000000002d8 = 0x95;
*(uint8_t*)0x2000000002d9 = 0;
*(uint16_t*)0x2000000002da = 0;
*(uint32_t*)0x2000000002dc = 0;
*(uint64_t*)0x2000000000d0 = 0x200000000040;
memcpy((void*)0x200000000040, "syzkaller\000", 10);
*(uint32_t*)0x2000000000d8 = 0;
*(uint32_t*)0x2000000000dc = 0;
*(uint64_t*)0x2000000000e0 = 0;
*(uint32_t*)0x2000000000e8 = 0;
*(uint32_t*)0x2000000000ec = 0;
memset((void*)0x2000000000f0, 0, 16);
*(uint32_t*)0x200000000100 = 0;
*(uint32_t*)0x200000000104 = 0;
*(uint32_t*)0x200000000108 = -1;
*(uint32_t*)0x20000000010c = 0;
*(uint64_t*)0x200000000110 = 0;
*(uint32_t*)0x200000000118 = 0;
*(uint32_t*)0x20000000011c = 0;
*(uint64_t*)0x200000000120 = 0;
*(uint32_t*)0x200000000128 = 0;
*(uint32_t*)0x20000000012c = 0;
*(uint32_t*)0x200000000130 = 0;
*(uint32_t*)0x200000000134 = 0;
*(uint64_t*)0x200000000138 = 0;
*(uint64_t*)0x200000000140 = 0;
*(uint32_t*)0x200000000148 = 0;
*(uint32_t*)0x20000000014c = 0;
*(uint32_t*)0x200000000150 = 0;
res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000000000c0ul, /*size=*/0x90ul);
if (res != -1)
r[1] = res;
// bpf$BPF_RAW_TRACEPOINT_OPEN arguments: [
// cmd: const = 0x11 (8 bytes)
// arg: ptr[in, bpf_raw_tracepoint] {
// bpf_raw_tracepoint {
// name: ptr[in, buffer] {
// buffer: {6b 66 72 65 65 00} (length 0x6)
// }
// prog_fd: fd_bpf_prog_raw_tracepoint (resource)
// pad: const = 0x0 (4 bytes)
// cookie: int64 = 0x0 (8 bytes)
// }
// }
// size: len = 0x10 (8 bytes)
// ]
// returns fd_perf_base
*(uint64_t*)0x2000000001c0 = 0x200000000180;
memcpy((void*)0x200000000180, "kfree\000", 6);
*(uint32_t*)0x2000000001c8 = r[1];
*(uint32_t*)0x2000000001cc = 0;
*(uint64_t*)0x2000000001d0 = 0;
syscall(__NR_bpf, /*cmd=*/0x11ul, /*arg=*/0x2000000001c0ul, /*size=*/0x10ul);
// socketpair$nbd arguments: [
// domain: const = 0x1 (8 bytes)
// type: const = 0x1 (8 bytes)
// proto: const = 0x0 (4 bytes)
// fds: ptr[out, nbd_sock_pair] {
// nbd_sock_pair {
// client: sock_nbd_client (resource)
// server: sock_nbd_server (resource)
// }
// }
// ]
res = syscall(__NR_socketpair, /*domain=*/1ul, /*type=*/1ul, /*proto=*/0, /*fds=*/0x200000000100ul);
if (res != -1)
r[2] = *(uint32_t*)0x200000000104;
// bpf$MAP_UPDATE_ELEM_TAIL_CALL arguments: [
// cmd: const = 0x2 (8 bytes)
// arg: ptr[inout, bpf_map_update_tail_call_arg] {
// bpf_map_update_tail_call_arg {
// map: tail_call_map_update {
// in: tail_call_map_fd (resource)
// out: tail_call_map (resource)
// }
// pad = 0x0 (4 bytes)
// key: ptr[in, const[0, const]] {
// const = 0x0 (4 bytes)
// }
// val: ptr[in, fd_bpf_prog] {
// fd_bpf_prog (resource)
// }
// flags: const = 0x0 (8 bytes)
// }
// }
// size: len = 0x20 (8 bytes)
// ]
*(uint32_t*)0x200000000500 = r[0];
*(uint64_t*)0x200000000508 = 0x200000000480;
*(uint32_t*)0x200000000480 = 0;
*(uint64_t*)0x200000000510 = 0x2000000004c0;
*(uint32_t*)0x2000000004c0 = r[2];
*(uint64_t*)0x200000000518 = 0;
syscall(__NR_bpf, /*cmd=*/2ul, /*arg=*/0x200000000500ul, /*size=*/0x20ul);
return 0;
}
]