// https://syzkaller.appspot.com/bug?id=093db36db6f1e731af222e7b719cbb626e9fd34d // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #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)))) int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/7ul, /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=*/0x32ul, /*fd=*/-1, /*offset=*/0ul); *(uint32_t*)0x200009c0 = 0x1b; *(uint32_t*)0x200009c4 = 7; *(uint64_t*)0x200009c8 = 0x20000a80; *(uint8_t*)0x20000a80 = 0x18; STORE_BY_BITMASK(uint8_t, , 0x20000a81, 0, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x20000a81, 0, 4, 4); *(uint16_t*)0x20000a82 = 0; *(uint32_t*)0x20000a84 = 0; *(uint8_t*)0x20000a88 = 0; *(uint8_t*)0x20000a89 = 0; *(uint16_t*)0x20000a8a = 0; *(uint32_t*)0x20000a8c = 0; *(uint8_t*)0x20000a90 = 0x18; STORE_BY_BITMASK(uint8_t, , 0x20000a91, 1, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x20000a91, 1, 4, 4); *(uint16_t*)0x20000a92 = 0; *(uint32_t*)0x20000a94 = -1; *(uint8_t*)0x20000a98 = 0; *(uint8_t*)0x20000a99 = 0; *(uint16_t*)0x20000a9a = 0; *(uint32_t*)0x20000a9c = 0; STORE_BY_BITMASK(uint8_t, , 0x20000aa0, 7, 0, 3); STORE_BY_BITMASK(uint8_t, , 0x20000aa0, 0, 3, 1); STORE_BY_BITMASK(uint8_t, , 0x20000aa0, 0xb, 4, 4); STORE_BY_BITMASK(uint8_t, , 0x20000aa1, 2, 0, 4); STORE_BY_BITMASK(uint8_t, , 0x20000aa1, 0, 4, 4); *(uint16_t*)0x20000aa2 = 0; *(uint32_t*)0x20000aa4 = 0; *(uint8_t*)0x20000aa8 = 0x85; *(uint8_t*)0x20000aa9 = 0; *(uint16_t*)0x20000aaa = 0; *(uint32_t*)0x20000aac = 0x86; *(uint8_t*)0x20000ab0 = 0x95; *(uint8_t*)0x20000ab1 = 0; *(uint16_t*)0x20000ab2 = 0; *(uint32_t*)0x20000ab4 = 0; *(uint64_t*)0x200009d0 = 0x20000ac0; memcpy((void*)0x20000ac0, "GPL\000", 4); *(uint32_t*)0x200009d8 = 0; *(uint32_t*)0x200009dc = 0; *(uint64_t*)0x200009e0 = 0; *(uint32_t*)0x200009e8 = 0; *(uint32_t*)0x200009ec = 0; memset((void*)0x200009f0, 0, 16); *(uint32_t*)0x20000a00 = 0; *(uint32_t*)0x20000a04 = 0; *(uint32_t*)0x20000a08 = 0; *(uint32_t*)0x20000a0c = 0; *(uint64_t*)0x20000a10 = 0; *(uint32_t*)0x20000a18 = 0; *(uint32_t*)0x20000a1c = 0; *(uint64_t*)0x20000a20 = 0; *(uint32_t*)0x20000a28 = 0; *(uint32_t*)0x20000a2c = 0; *(uint32_t*)0x20000a30 = 0; *(uint32_t*)0x20000a34 = 0; *(uint64_t*)0x20000a38 = 0; *(uint64_t*)0x20000a40 = 0; *(uint32_t*)0x20000a48 = 0; *(uint32_t*)0x20000a4c = 0; syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x200009c0ul, /*size=*/0xa0ul); return 0; }