From a159b53fa059947cc2548e3b0d5bdcf7b9630ba8 Mon Sep 17 00:00:00 2001 From: Paul Eggert <eggert@cs.ucla.edu> Date: Sun, 22 Oct 2017 10:00:57 +0200 Subject: [PATCH] glob: Fix buffer overflow during GLOB_TILDE unescaping [BZ #22332] --- ChangeLog | 6 ++++++ NEWS | 4 ++++ posix/glob.c | 4 ++-- 3 files changed, 12 insertions(+), 2 deletions(-) --- 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 -- 2.9.3