diff --git a/lib/isc/uv.c b/lib/isc/uv.c index 7ad878cf7f..a7e1a727b2 100644 --- a/lib/isc/uv.c +++ b/lib/isc/uv.c @@ -130,6 +130,21 @@ isc__uv_free(void *ptr) { void isc__uv_initialize(void) { + /* + * Ensure the first 3 file descriptors are open + * otherwise, libuv may use one and trigger abort + * when closing it. + * + * See https://github.com/libuv/libuv/pull/4559 + */ + do { + int fd = open("/dev/null", O_RDWR, 0); + RUNTIME_CHECK(fd >= 0); + if (fd > STDERR_FILENO) { + close(fd); + break; + } + } while (true); #if UV_VERSION_HEX >= UV_VERSION(1, 38, 0) int r; isc_mem_create(&isc__uv_mctx);