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authorPaul Eggert <eggert@cs.ucla.edu>2017-10-22 10:00:57 +0200
committerFlorian Weimer <fweimer@redhat.com>2017-10-22 10:01:24 +0200
commita159b53fa059947cc2548e3b0d5bdcf7b9630ba8 (patch)
treeec926a3f2199246bc1ef2c9361afac4a39d7ed21 /posix
parent914c9994d27b80bc3b71c483e801a4f04e269ba6 (diff)
glob: Fix buffer overflow during GLOB_TILDE unescaping [BZ #22332]
Diffstat (limited to 'posix')
-rw-r--r--posix/glob.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/posix/glob.c b/posix/glob.c
index 15a6c0cf13..cb39779d07 100644
--- a/posix/glob.c
+++ b/posix/glob.c
@@ -770,11 +770,11 @@ __glob (const char *pattern, int flags, int (*errfunc) (const char *, int),
char *p = mempcpy (newp, dirname + 1,
unescape - dirname - 1);
char *q = unescape;
- while (*q != '\0')
+ while (q != end_name)
{
if (*q == '\\')
{
- if (q[1] == '\0')
+ if (q + 1 == end_name)
{
/* "~fo\\o\\" unescape to user_name "foo\\",
but "~fo\\o\\/" unescape to user_name