// https://syzkaller.appspot.com/bug?id=fe6de6e268452c88c20001b0c7bb89b442b9a700 // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #ifndef __NR_bpf #define __NR_bpf 280 #endif #ifndef __NR_ioctl #define __NR_ioctl 29 #endif #ifndef __NR_mmap #define __NR_mmap 222 #endif #ifndef __NR_openat #define __NR_openat 56 #endif #ifndef __NR_pwritev #define __NR_pwritev 70 #endif uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff}; int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1, /*offset=*/0ul); const char* reason; (void)reason; intptr_t res = 0; if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } memcpy((void*)0x20000080, "/dev/ttyS3\000", 11); res = syscall(__NR_openat, /*fd=*/0xffffff9cul, /*file=*/0x20000080ul, /*flags=*/0ul, /*mode=*/0ul); if (res != -1) r[0] = res; *(uint32_t*)0x20000780 = 3; syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x5423, /*arg=*/0x20000780ul); *(uint32_t*)0x20000180 = 1; *(uint32_t*)0x20000184 = 0; *(uint64_t*)0x20000188 = 0; *(uint64_t*)0x20000190 = 0; *(uint32_t*)0x20000198 = 0; *(uint32_t*)0x2000019c = 0; *(uint64_t*)0x200001a0 = 0; *(uint32_t*)0x200001a8 = 0; *(uint32_t*)0x200001ac = 0; memset((void*)0x200001b0, 0, 16); *(uint32_t*)0x200001c0 = 0; *(uint32_t*)0x200001c4 = 0; *(uint32_t*)0x200001c8 = -1; *(uint32_t*)0x200001cc = 8; *(uint64_t*)0x200001d0 = 0; *(uint32_t*)0x200001d8 = 0; *(uint32_t*)0x200001dc = 0x10; *(uint64_t*)0x200001e0 = 0; *(uint32_t*)0x200001e8 = 0; *(uint32_t*)0x200001ec = -1; *(uint32_t*)0x200001f0 = -1; *(uint32_t*)0x200001f4 = 0; *(uint64_t*)0x200001f8 = 0; *(uint64_t*)0x20000200 = 0; *(uint32_t*)0x20000208 = 0x10; *(uint32_t*)0x2000020c = 0; syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x20000180ul, /*size=*/0x78ul); memcpy((void*)0x20000040, "/dev/ppp\000", 9); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000040ul, /*flags=O_TRUNC|O_NONBLOCK|O_WRONLY|0x1000*/ 0x1a01ul, /*mode=*/0ul); if (res != -1) r[1] = res; syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x40047438, /*arg=*/0x20000180ul); *(uint64_t*)0x20000380 = 0x200010c0; memcpy((void*)0x200010c0, "\xc0\x21", 2); *(uint64_t*)0x20000388 = 2; syscall(__NR_pwritev, /*fd=*/r[1], /*vec=*/0x20000380ul, /*vlen=*/1ul, /*off_low=*/0, /*off_high=*/0); return 0; }