// https://syzkaller.appspot.com/bug?id=bf1d98882a783b449bb42e9af6720e4f1b37919d // 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, 0); if (res != -1) r[0] = res; *(uint64_t*)0x200001c0 = 0; *(uint32_t*)0x200001c8 = 0; *(uint64_t*)0x200001d0 = 0x20000000; *(uint64_t*)0x20000000 = 0x200002c0; *(uint32_t*)0x200002c0 = 0x80; *(uint16_t*)0x200002c4 = 0x30; *(uint16_t*)0x200002c6 = 1; *(uint32_t*)0x200002c8 = 0; *(uint32_t*)0x200002cc = 0; *(uint8_t*)0x200002d0 = 0; *(uint8_t*)0x200002d1 = 0; *(uint16_t*)0x200002d2 = 0; *(uint16_t*)0x200002d4 = 0x6c; *(uint16_t*)0x200002d6 = 1; *(uint16_t*)0x200002d8 = 0x68; STORE_BY_BITMASK(uint16_t, , 0x200002da, 1, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x200002db, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x200002db, 0, 7, 1); *(uint16_t*)0x200002dc = 8; *(uint16_t*)0x200002de = 1; memcpy((void*)0x200002e0, "ipt\000", 4); *(uint16_t*)0x200002e4 = 0x40; STORE_BY_BITMASK(uint16_t, , 0x200002e6, 2, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x200002e7, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x200002e7, 1, 7, 1); *(uint16_t*)0x200002e8 = 0x2a; *(uint16_t*)0x200002ea = 6; *(uint16_t*)0x200002ec = 3; memcpy((void*)0x200002ee, "mangle\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000" "\000\000\000\000\000\000\000\000\000\000\000", 32); *(uint8_t*)0x2000030e = 1; *(uint16_t*)0x20000310 = 0x100; *(uint16_t*)0x20000314 = 8; *(uint16_t*)0x20000316 = 3; *(uint32_t*)0x20000318 = 5; *(uint16_t*)0x2000031c = 8; *(uint16_t*)0x2000031e = 2; *(uint32_t*)0x20000320 = 2; *(uint16_t*)0x20000324 = 4; *(uint16_t*)0x20000326 = 6; *(uint16_t*)0x20000328 = 0xc; *(uint16_t*)0x2000032a = 7; *(uint32_t*)0x2000032c = 0; *(uint32_t*)0x20000330 = 0; *(uint16_t*)0x20000334 = 0xc; *(uint16_t*)0x20000336 = 8; *(uint32_t*)0x20000338 = 0; *(uint32_t*)0x2000033c = 0; *(uint64_t*)0x20000008 = 0x80; *(uint64_t*)0x200001d8 = 1; *(uint64_t*)0x200001e0 = 0; *(uint64_t*)0x200001e8 = 0; *(uint32_t*)0x200001f0 = 0; syscall(__NR_sendmsg, r[0], 0x200001c0ul, 0ul); return 0; }