From: Eric Biggers <ebiggers3@gmail.com>
Date: Sat, 21 Dec 2013 00:31:35 +0000 (-0600)
Subject: create_temporary_file(): Fix use-after-free
X-Git-Tag: v1.6.0~131
X-Git-Url: https://wimlib.net/git/?p=wimlib;a=commitdiff_plain;h=bbedc3e1934278c2ff2746b25b688477cffc9d83;hp=c86ed31aa6d3fb28cfa017fb8f6e4888a9ae26b2

create_temporary_file(): Fix use-after-free
---

diff --git a/src/extract.c b/src/extract.c
index 59396717..3438ca73 100644
--- a/src/extract.c
+++ b/src/extract.c
@@ -1221,11 +1221,12 @@ retry:
 	raw_fd = topen(name, O_WRONLY | O_CREAT | O_EXCL | O_BINARY, 0600);
 
 	if (raw_fd < 0) {
-		int errno_save = errno;
-		FREE(name);
-		if (errno_save == EEXIST)
+		if (errno == EEXIST) {
+			FREE(name);
 			goto retry;
+		}
 		ERROR_WITH_ERRNO("Failed to open temporary file \"%"TS"\"", name);
+		FREE(name);
 		return WIMLIB_ERR_OPEN;
 	}