// https://syzkaller.appspot.com/bug?id=5388824c1e18a045263859c865be0409bc5459bf // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #ifndef __NR_ioctl #define __NR_ioctl 29 #endif #ifndef __NR_mmap #define __NR_mmap 222 #endif #ifndef __NR_sendmsg #define __NR_sendmsg 211 #endif #ifndef __NR_socket #define __NR_socket 198 #endif #ifndef __NR_socketpair #define __NR_socketpair 199 #endif uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0x0}; 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); intptr_t res = 0; res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0); if (res != -1) r[0] = res; res = syscall(__NR_socketpair, /*domain=*/1ul, /*type=*/1ul, /*proto=*/0, /*fds=*/0x20000080ul); if (res != -1) r[1] = *(uint32_t*)0x20000084; memcpy((void*)0x20000000, "lo\000\000\000\000\000\000\000\000\000\000\000\000\000\000", 16); res = syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x8933, /*arg=*/0x20000000ul); if (res != -1) r[2] = *(uint32_t*)0x20000010; *(uint64_t*)0x20000040 = 0; *(uint32_t*)0x20000048 = 0; *(uint64_t*)0x20000050 = 0x20000780; *(uint64_t*)0x20000780 = 0x20000e00; *(uint32_t*)0x20000e00 = 0xc0; *(uint16_t*)0x20000e04 = 0x24; *(uint16_t*)0x20000e06 = 0xf0b; *(uint32_t*)0x20000e08 = 0; *(uint32_t*)0x20000e0c = 0; *(uint8_t*)0x20000e10 = 0x60; *(uint8_t*)0x20000e11 = 0; *(uint16_t*)0x20000e12 = 0; *(uint32_t*)0x20000e14 = r[2]; *(uint16_t*)0x20000e18 = 0; *(uint16_t*)0x20000e1a = 0; *(uint16_t*)0x20000e1c = -1; *(uint16_t*)0x20000e1e = -1; *(uint16_t*)0x20000e20 = 0; *(uint16_t*)0x20000e22 = 0; *(uint16_t*)0x20000e24 = 0xa; *(uint16_t*)0x20000e26 = 1; memcpy((void*)0x20000e28, "netem\000", 6); *(uint16_t*)0x20000e30 = 0x90; *(uint16_t*)0x20000e32 = 2; *(uint32_t*)0x20000e34 = 0x800000; *(uint32_t*)0x20000e38 = 0; *(uint32_t*)0x20000e3c = 0; *(uint32_t*)0x20000e40 = 0; *(uint32_t*)0x20000e44 = 0; *(uint32_t*)0x20000e48 = 0; *(uint16_t*)0x20000e4c = 0x2e; *(uint16_t*)0x20000e4e = 2; memcpy((void*)0x20000e50, "\x95\x74\xdc\x7b\x88\x35\xbd\x82\x69\x6d\x57\xe0\xec\xba\x9b\x89\x7a" "\xf8\xc4\x94\x3b\x38\x36\xf8\x4d\xc3\x0d\x64\x83\x41\x51\xd4\x56\xb5" "\xfe\x5b\xb3\xfd\xdf\x6c\x73\x13", 42); *(uint16_t*)0x20000e7c = 0x14; *(uint16_t*)0x20000e7e = 6; *(uint32_t*)0x20000e80 = 2; *(uint32_t*)0x20000e84 = 5; *(uint32_t*)0x20000e88 = 2; *(uint32_t*)0x20000e8c = 0x20; *(uint16_t*)0x20000e90 = 8; *(uint16_t*)0x20000e92 = 7; *(uint32_t*)0x20000e94 = 0; *(uint16_t*)0x20000e98 = 0xff40; *(uint16_t*)0x20000e9a = 6; *(uint32_t*)0x20000e9c = 8; *(uint32_t*)0x20000ea0 = 0x24; *(uint32_t*)0x20000ea4 = 0xf96; *(uint32_t*)0x20000ea8 = 0x5038; *(uint16_t*)0x20000eac = 0x14; *(uint16_t*)0x20000eae = 6; *(uint32_t*)0x20000eb0 = 0xa207; *(uint32_t*)0x20000eb4 = 3; *(uint32_t*)0x20000eb8 = 2; *(uint32_t*)0x20000ebc = 0x9c; *(uint64_t*)0x20000788 = 0xc0; *(uint64_t*)0x20000058 = 1; *(uint64_t*)0x20000060 = 0; *(uint64_t*)0x20000068 = 0; *(uint32_t*)0x20000070 = 0; syscall(__NR_sendmsg, /*fd=*/r[0], /*msg=*/0x20000040ul, /*f=*/0x4010000ul); return 0; }