// https://syzkaller.appspot.com/bug?id=64610bd8c2958cca3a2abe622440b480a4ab43b4 // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #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[1] = {0xffffffffffffffff}; int main(void) { syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul); syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul); syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul); intptr_t res = 0; res = syscall(__NR_socket, 0x10ul, 3ul, 0xc); if (res != -1) r[0] = res; *(uint64_t*)0x200000c0 = 0; *(uint32_t*)0x200000c8 = 0; *(uint64_t*)0x200000d0 = 0x20000100; *(uint64_t*)0x20000100 = 0x20000140; *(uint32_t*)0x20000140 = 0x58; *(uint8_t*)0x20000144 = 2; *(uint8_t*)0x20000145 = 6; *(uint16_t*)0x20000146 = 0x801; *(uint32_t*)0x20000148 = 0x6c; *(uint32_t*)0x2000014c = 0; *(uint8_t*)0x20000150 = 0; *(uint8_t*)0x20000151 = 0; *(uint16_t*)0x20000152 = htobe16(0); *(uint16_t*)0x20000154 = 5; *(uint16_t*)0x20000156 = 5; *(uint8_t*)0x20000158 = 0xa; *(uint16_t*)0x2000015c = 5; *(uint16_t*)0x2000015e = 1; *(uint8_t*)0x20000160 = 6; *(uint16_t*)0x20000164 = 5; *(uint16_t*)0x20000166 = 4; *(uint8_t*)0x20000168 = 0; *(uint16_t*)0x2000016c = 9; *(uint16_t*)0x2000016e = 2; memcpy((void*)0x20000170, "syz0\000", 5); *(uint16_t*)0x20000178 = 0x11; *(uint16_t*)0x2000017a = 3; memcpy((void*)0x2000017c, "hash:ip,mark\000", 13); *(uint16_t*)0x2000018c = 0xc; STORE_BY_BITMASK(uint16_t, , 0x2000018e, 7, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x2000018f, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x2000018f, 1, 7, 1); *(uint16_t*)0x20000190 = 8; STORE_BY_BITMASK(uint16_t, , 0x20000192, 0x12, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x20000193, 1, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x20000193, 0, 7, 1); *(uint32_t*)0x20000194 = htobe32(0x233c0003); *(uint64_t*)0x20000108 = 0x58; *(uint64_t*)0x200000d8 = 1; *(uint64_t*)0x200000e0 = 0; *(uint64_t*)0x200000e8 = 0; *(uint32_t*)0x200000f0 = 0; syscall(__NR_sendmsg, r[0], 0x200000c0ul, 0ul); return 0; }