// https://syzkaller.appspot.com/bug?id=ea8291a5b20aa48941a0cacabe6688024b237728 // autogenerated by syzkaller (http://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include static uintptr_t syz_open_dev(uintptr_t a0, uintptr_t a1, uintptr_t a2) { if (a0 == 0xc || a0 == 0xb) { char buf[128]; sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1, (uint8_t)a2); return open(buf, O_RDWR, 0); } else { char buf[1024]; char* hash; strncpy(buf, (char*)a0, sizeof(buf)); buf[sizeof(buf) - 1] = 0; while ((hash = strchr(buf, '#'))) { *hash = '0' + (char)(a1 % 10); a1 /= 10; } return open(buf, a2, 0); } } long r[1]; void loop() { memset(r, -1, sizeof(r)); syscall(__NR_mmap, 0x20000000, 0xfff000, 3, 0x32, -1, 0); memcpy((void*)0x2047cff7, "/dev/sg#", 9); r[0] = syz_open_dev(0x2047cff7, 0, 0); *(uint64_t*)0x202c4ff8 = 6; syscall(__NR_ioctl, r[0], 0x5452, 0x202c4ff8); *(uint64_t*)0x203a7f60 = 0x20c97feb; *(uint64_t*)0x203a7f68 = 0x15; *(uint64_t*)0x203a7f70 = 0x20262f86; *(uint64_t*)0x203a7f78 = 0x7a; *(uint64_t*)0x203a7f80 = 0x2089bf79; *(uint64_t*)0x203a7f88 = 0x87; *(uint64_t*)0x203a7f90 = 0x208e7000; *(uint64_t*)0x203a7f98 = 0x9a; *(uint64_t*)0x203a7fa0 = 0x204c7000; *(uint64_t*)0x203a7fa8 = 0xfd; *(uint64_t*)0x203a7fb0 = 0x20e98f98; *(uint64_t*)0x203a7fb8 = 0x68; *(uint64_t*)0x203a7fc0 = 0x201d3000; *(uint64_t*)0x203a7fc8 = 0x50; *(uint64_t*)0x203a7fd0 = 0x208daf88; *(uint64_t*)0x203a7fd8 = 0x78; *(uint64_t*)0x203a7fe0 = 0x20bd5000; *(uint64_t*)0x203a7fe8 = 0x9b; *(uint64_t*)0x203a7ff0 = 0x205dd000; *(uint64_t*)0x203a7ff8 = 0x1000; syscall(__NR_readv, r[0], 0x203a7f60, 0xa); } int main() { loop(); return 0; }