// https://syzkaller.appspot.com/bug?id=3674e1e163310d45ad3b0371f90b06b56af44697 // 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[2] = {0xffffffffffffffff, 0xffffffffffffffff}; int main(void) { syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x32ul, -1, 0); intptr_t res = 0; res = syscall(__NR_socket, 0x10ul, 3ul, 0xcul); if (res != -1) r[0] = res; *(uint64_t*)0x20000200 = 0; *(uint32_t*)0x20000208 = 0; *(uint64_t*)0x20000210 = 0x20000180; *(uint64_t*)0x20000180 = 0x200009c0; *(uint32_t*)0x200009c0 = 0x14; *(uint16_t*)0x200009c4 = 0x10; *(uint16_t*)0x200009c6 = 1; *(uint32_t*)0x200009c8 = 0; *(uint32_t*)0x200009cc = 0; *(uint8_t*)0x200009d0 = 0; *(uint8_t*)0x200009d1 = 0; *(uint16_t*)0x200009d2 = htobe16(0xa); *(uint32_t*)0x200009d4 = 0x28; *(uint8_t*)0x200009d8 = 0; *(uint8_t*)0x200009d9 = 0xa; *(uint16_t*)0x200009da = 1; *(uint32_t*)0x200009dc = 0; *(uint32_t*)0x200009e0 = 0; *(uint8_t*)0x200009e4 = 0; *(uint8_t*)0x200009e5 = 0; *(uint16_t*)0x200009e6 = htobe16(0); *(uint16_t*)0x200009e8 = 9; *(uint16_t*)0x200009ea = 1; memcpy((void*)0x200009ec, "syz0\000", 5); *(uint16_t*)0x200009f4 = 8; STORE_BY_BITMASK(uint16_t, , 0x200009f6, 2, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x200009f7, 1, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x200009f7, 0, 7, 1); *(uint32_t*)0x200009f8 = htobe32(1); *(uint32_t*)0x200009fc = 0x14; *(uint16_t*)0x20000a00 = 0x11; *(uint16_t*)0x20000a02 = 3; *(uint32_t*)0x20000a04 = 0; *(uint32_t*)0x20000a08 = 0; *(uint8_t*)0x20000a0c = 0; *(uint8_t*)0x20000a0d = 0; *(uint16_t*)0x20000a0e = htobe16(0xa); *(uint64_t*)0x20000188 = 0x50; *(uint64_t*)0x20000218 = 1; *(uint64_t*)0x20000220 = 0; *(uint64_t*)0x20000228 = 0; *(uint32_t*)0x20000230 = 0; syscall(__NR_sendmsg, r[0], 0x20000200ul, 0ul); *(uint64_t*)0x20000140 = 0; *(uint32_t*)0x20000148 = 0; *(uint64_t*)0x20000150 = 0x20000040; *(uint64_t*)0x20000040 = 0x20000080; memcpy((void*)0x20000080, "\x14\x00\x00\x00\x10\x00\x01\x00\x20\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x0a\x2c\x00\x00\x00\x03\x0a\x5b\xa6\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x09\x00\x01\x00\x73\x79\x7a\x30\x00\x00\x00" "\x00\x09\x00\x03\x00\x73\x79\x7a\x30\x00\x00\x00\x00\x14\x00\x00\x00" "\x11\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a", 84); *(uint64_t*)0x20000048 = 0x54; *(uint64_t*)0x20000158 = 1; *(uint64_t*)0x20000160 = 0; *(uint64_t*)0x20000168 = 0; *(uint32_t*)0x20000170 = 0; syscall(__NR_sendmsg, r[0], 0x20000140ul, 0ul); res = syscall(__NR_socket, 0x10ul, 3ul, 0xcul); if (res != -1) r[1] = res; *(uint64_t*)0x20000240 = 0; *(uint32_t*)0x20000248 = 0; *(uint64_t*)0x20000250 = 0x20000200; *(uint64_t*)0x20000200 = 0x20000140; *(uint32_t*)0x20000140 = 0x14; *(uint16_t*)0x20000144 = 0x10; *(uint16_t*)0x20000146 = 1; *(uint32_t*)0x20000148 = 0; *(uint32_t*)0x2000014c = 0; *(uint8_t*)0x20000150 = 0; *(uint8_t*)0x20000151 = 0; *(uint16_t*)0x20000152 = htobe16(0xa); *(uint32_t*)0x20000154 = 0x58; *(uint8_t*)0x20000158 = 6; *(uint8_t*)0x20000159 = 0xa; *(uint16_t*)0x2000015a = 0x401; *(uint32_t*)0x2000015c = 0; *(uint32_t*)0x20000160 = 0; *(uint8_t*)0x20000164 = 0; *(uint8_t*)0x20000165 = 0; *(uint16_t*)0x20000166 = htobe16(0); *(uint16_t*)0x20000168 = 9; *(uint16_t*)0x2000016a = 2; memcpy((void*)0x2000016c, "syz0\000", 5); *(uint16_t*)0x20000174 = 9; *(uint16_t*)0x20000176 = 1; memcpy((void*)0x20000178, "syz0\000", 5); *(uint16_t*)0x20000180 = 0x2c; STORE_BY_BITMASK(uint16_t, , 0x20000182, 4, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x20000183, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x20000183, 1, 7, 1); *(uint16_t*)0x20000184 = 0x28; STORE_BY_BITMASK(uint16_t, , 0x20000186, 1, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x20000187, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x20000187, 1, 7, 1); *(uint16_t*)0x20000188 = 0xb; *(uint16_t*)0x2000018a = 1; memcpy((void*)0x2000018c, "socket\000", 7); *(uint16_t*)0x20000194 = 0xc; STORE_BY_BITMASK(uint16_t, , 0x20000196, 2, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x20000197, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x20000197, 1, 7, 1); *(uint16_t*)0x20000198 = 8; STORE_BY_BITMASK(uint16_t, , 0x2000019a, 2, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x2000019b, 1, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x2000019b, 0, 7, 1); *(uint32_t*)0x2000019c = htobe32(0xa); *(uint16_t*)0x200001a0 = 0xb; *(uint16_t*)0x200001a2 = 1; memcpy((void*)0x200001a4, "tunnel\000", 7); *(uint32_t*)0x200001ac = 0x14; *(uint16_t*)0x200001b0 = 0x11; *(uint16_t*)0x200001b2 = 1; *(uint32_t*)0x200001b4 = 0; *(uint32_t*)0x200001b8 = 0; *(uint8_t*)0x200001bc = 0; *(uint8_t*)0x200001bd = 0; *(uint16_t*)0x200001be = htobe16(0xa); *(uint64_t*)0x20000208 = 0x80; *(uint64_t*)0x20000258 = 1; *(uint64_t*)0x20000260 = 0; *(uint64_t*)0x20000268 = 0; *(uint32_t*)0x20000270 = 0; syscall(__NR_sendmsg, r[1], 0x20000240ul, 0ul); return 0; }