The quilt patch titled
Subject: lib: glob.c: added null check for character class
has been removed from the -mm tree. Its filename was
lib-globc-added-null-check-for-character-class.patch
This patch was dropped because it was merged into the mm-nonmm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Alok Swaminathan <swaminathanalok@xxxxxxxxx>
Subject: lib: glob.c: added null check for character class
Date: Mon, 26 Aug 2024 11:57:09 -0400
Add null check for character class. Previously, an inverted character
class could result in a nul byte being matched and lead to the function
reading past the end of the inputted string.
Link: https://lkml.kernel.org/r/20240826155709.12383-1-swaminathanalok@xxxxxxxxx
Signed-off-by: Alok Swaminathan <swaminathanalok@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/glob.c | 2 ++
1 file changed, 2 insertions(+)
--- a/lib/glob.c~lib-globc-added-null-check-for-character-class
+++ a/lib/glob.c
@@ -68,6 +68,8 @@ bool __pure glob_match(char const *pat,
back_str = --str; /* Allow zero-length match */
break;
case '[': { /* Character class */
+ if (c == '\0') /* No possible match */
+ return false;
bool match = false, inverted = (*pat == '!');
char const *class = pat + inverted;
unsigned char a = *class++;
_
Patches currently in -mm which might be from swaminathanalok@xxxxxxxxx are
