mirror of
https://github.com/archlinuxarm/PKGBUILDs.git
synced 2024-11-18 22:54:00 +00:00
33 lines
1.2 KiB
Diff
33 lines
1.2 KiB
Diff
|
From 5ebff5337594d690b322078c512eb222d34aaa82 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Michal Schmidt <mschmidt@redhat.com>
|
||
|
|
Date: Fri, 2 Mar 2012 10:39:10 +0100
|
||
|
|
Subject: [PATCH] util: never follow symlinks in rm_rf_children()
|
||
|
|
|
||
|
|
The function checks if the entry is a directory before recursing, but
|
||
|
|
there is a window between the check and the open, during which the
|
||
|
|
directory could be replaced with a symlink.
|
||
|
|
|
||
|
|
CVE-2012-1174
|
||
|
|
https://bugzilla.redhat.com/show_bug.cgi?id=803358
|
||
|
|
---
|
||
|
|
src/util.c | 3 ++-
|
||
|
|
1 file changed, 2 insertions(+), 1 deletion(-)
|
||
|
|
|
||
|
|
diff --git a/src/util.c b/src/util.c
|
||
|
|
index 20cbc2b..dfc1dc6 100644
|
||
|
|
--- a/src/util.c
|
||
|
|
+++ b/src/util.c
|
||
|
|
@@ -3593,7 +3593,8 @@ static int rm_rf_children(int fd, bool only_dirs, bool honour_sticky) {
|
||
|
|
if (is_dir) {
|
||
|
|
int subdir_fd;
|
||
|
|
|
||
|
|
- if ((subdir_fd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC)) < 0) {
|
||
|
|
+ subdir_fd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW);
|
||
|
|
+ if (subdir_fd < 0) {
|
||
|
|
if (ret == 0 && errno != ENOENT)
|
||
|
|
ret = -errno;
|
||
|
|
continue;
|
||
|
|
--
|
||
|
|
1.7.9.4
|
||
|
|
|