// https://syzkaller.appspot.com/bug?id=c248b4a82df7a44e2fdfe33e50a8e4619cc2fff5 // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0x0}; int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; intptr_t res = 0; if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } res = syscall(__NR_socket, /*domain=AF_NETLINK*/ 0x10ul, /*type=SOCK_RAW*/ 3ul, /*proto=*/0); if (res != -1) r[0] = res; res = syscall(__NR_socketpair, /*domain=*/1ul, /*type=SOCK_SEQPACKET*/ 5ul, /*proto=*/0, /*fds=*/0x200000000240ul); if (res != -1) r[1] = *(uint32_t*)0x200000000244; memcpy((void*)0x200000000000, "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=*/0x200000000000ul); if (res != -1) r[2] = *(uint32_t*)0x200000000010; *(uint64_t*)0x200000000040 = 0; *(uint32_t*)0x200000000048 = 0; *(uint64_t*)0x200000000050 = 0x200000000280; *(uint64_t*)0x200000000280 = 0x200000000080; *(uint32_t*)0x200000000080 = 0x2c; *(uint16_t*)0x200000000084 = 0x24; *(uint16_t*)0x200000000086 = 0xd0f; *(uint32_t*)0x200000000088 = 0x70bd2d; *(uint32_t*)0x20000000008c = 0; *(uint8_t*)0x200000000090 = 0x60; *(uint8_t*)0x200000000091 = 0; *(uint16_t*)0x200000000092 = 0; *(uint32_t*)0x200000000094 = r[2]; *(uint16_t*)0x200000000098 = 0; *(uint16_t*)0x20000000009a = 0xa; *(uint16_t*)0x20000000009c = -1; *(uint16_t*)0x20000000009e = -1; *(uint16_t*)0x2000000000a0 = 0; *(uint16_t*)0x2000000000a2 = -1; *(uint16_t*)0x2000000000a4 = 8; *(uint16_t*)0x2000000000a6 = 1; memcpy((void*)0x2000000000a8, "qfq\000", 4); *(uint64_t*)0x200000000288 = 0x2c; *(uint64_t*)0x200000000058 = 1; *(uint64_t*)0x200000000060 = 0; *(uint64_t*)0x200000000068 = 0; *(uint32_t*)0x200000000070 = 0; syscall(__NR_sendmsg, /*fd=*/r[0], /*msg=*/0x200000000040ul, /*f=MSG_BATCH|MSG_NOSIGNAL|MSG_EOR*/ 0x44080ul); *(uint64_t*)0x200000000100 = 0; *(uint32_t*)0x200000000108 = 0; *(uint64_t*)0x200000000110 = 0x200000000380; *(uint64_t*)0x200000000380 = 0x200000019580; *(uint32_t*)0x200000019580 = 0x40; *(uint16_t*)0x200000019584 = 0x24; *(uint16_t*)0x200000019586 = 0xd0f; *(uint32_t*)0x200000019588 = 0x70bd26; *(uint32_t*)0x20000001958c = 0; *(uint8_t*)0x200000019590 = 0x60; *(uint8_t*)0x200000019591 = 0; *(uint16_t*)0x200000019592 = 0; *(uint32_t*)0x200000019594 = r[2]; *(uint16_t*)0x200000019598 = 0; *(uint16_t*)0x20000001959a = 0; *(uint16_t*)0x20000001959c = 0xfff2; *(uint16_t*)0x20000001959e = 0xa; *(uint16_t*)0x2000000195a0 = 0; *(uint16_t*)0x2000000195a2 = 0; *(uint16_t*)0x2000000195a4 = 0xd; *(uint16_t*)0x2000000195a6 = 1; memcpy((void*)0x2000000195a8, "fq_codel\000", 9); *(uint16_t*)0x2000000195b4 = 0xc; *(uint16_t*)0x2000000195b6 = 2; *(uint16_t*)0x2000000195b8 = 8; *(uint16_t*)0x2000000195ba = 9; *(uint32_t*)0x2000000195bc = 7; *(uint64_t*)0x200000000388 = 0x40; *(uint64_t*)0x200000000118 = 1; *(uint64_t*)0x200000000120 = 0; *(uint64_t*)0x200000000128 = 0; *(uint32_t*)0x200000000130 = 0; syscall(__NR_sendmsg, /*fd=*/r[0], /*msg=*/0x200000000100ul, /*f=MSG_CONFIRM*/ 0x800ul); return 0; }