// https://syzkaller.appspot.com/bug?id=40abc1f181d9c0f680a6f31245098d4314e162e8 // 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[5] = {0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0}; 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, 0x11ul, 3ul, 0x300); if (res != -1) r[0] = res; memcpy((void*)0x20000180, "bond0\000\000\000\000\000\000\000\000\000\000\000", 16); res = syscall(__NR_ioctl, r[0], 0x8933, 0x20000180ul); if (res != -1) r[1] = *(uint32_t*)0x20000190; *(uint16_t*)0x20000100 = 0x11; *(uint16_t*)0x20000102 = htobe16(0); *(uint32_t*)0x20000104 = r[1]; *(uint16_t*)0x20000108 = 1; *(uint8_t*)0x2000010a = 0x7f; *(uint8_t*)0x2000010b = 6; memset((void*)0x2000010c, 187, 6); memset((void*)0x20000112, 0, 2); syscall(__NR_bind, -1, 0x20000100ul, 0x14ul); res = syscall(__NR_socket, 0x10ul, 3ul, 0); if (res != -1) r[2] = res; res = syscall(__NR_socket, 1ul, 0x803ul, 0); if (res != -1) r[3] = res; *(uint32_t*)0x200002c0 = 0x14; res = syscall(__NR_getsockname, r[3], 0x20000100ul, 0x200002c0ul); if (res != -1) r[4] = *(uint32_t*)0x20000104; *(uint64_t*)0x20000240 = 0; *(uint32_t*)0x20000248 = 0; *(uint64_t*)0x20000250 = 0x20000000; *(uint64_t*)0x20000000 = 0x20000380; *(uint32_t*)0x20000380 = 0x54; *(uint16_t*)0x20000384 = 0x10; *(uint16_t*)0x20000386 = 0x401; *(uint32_t*)0x20000388 = 0; *(uint32_t*)0x2000038c = 0; *(uint8_t*)0x20000390 = 0; *(uint8_t*)0x20000391 = 0; *(uint16_t*)0x20000392 = 0; *(uint32_t*)0x20000394 = 0; *(uint32_t*)0x20000398 = 1; *(uint32_t*)0x2000039c = 0x20002; *(uint16_t*)0x200003a0 = 0x24; STORE_BY_BITMASK(uint16_t, , 0x200003a2, 0x12, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x200003a3, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x200003a3, 1, 7, 1); *(uint16_t*)0x200003a4 = 0xc; *(uint16_t*)0x200003a6 = 1; memcpy((void*)0x200003a8, "macvlan\000", 8); *(uint16_t*)0x200003b0 = 0x14; STORE_BY_BITMASK(uint16_t, , 0x200003b2, 2, 0, 14); STORE_BY_BITMASK(uint16_t, , 0x200003b3, 0, 6, 1); STORE_BY_BITMASK(uint16_t, , 0x200003b3, 1, 7, 1); *(uint16_t*)0x200003b4 = 8; *(uint16_t*)0x200003b6 = 1; *(uint32_t*)0x200003b8 = 8; *(uint16_t*)0x200003bc = 6; *(uint16_t*)0x200003be = 2; *(uint16_t*)0x200003c0 = 1; *(uint16_t*)0x200003c4 = 8; *(uint16_t*)0x200003c6 = 5; *(uint32_t*)0x200003c8 = r[1]; *(uint16_t*)0x200003cc = 8; *(uint16_t*)0x200003ce = 0xa; *(uint32_t*)0x200003d0 = r[4]; *(uint64_t*)0x20000008 = 0x54; *(uint64_t*)0x20000258 = 1; *(uint64_t*)0x20000260 = 0; *(uint64_t*)0x20000268 = 0; *(uint32_t*)0x20000270 = 0x4008800; syscall(__NR_sendmsg, r[2], 0x20000240ul, 0x4000ul); return 0; }