util-linux/backport-last-avoid-out-of-bounds-array-access.patch
2024-12-16 02:37:59 +00:00

31 lines
848 B
Diff

From 75822efb8e948b538d9e9ccc329a5430fdabb7ea Mon Sep 17 00:00:00 2001
From: biubiuzy <294772273@qq.com>
Date: Fri, 23 Feb 2024 17:44:12 +0800
Subject: [PATCH] last: avoid out of bounds array access
Reference:https://github.com/util-linux/util-linux/commit/75822efb8e948b538d9e9ccc329a5430fdabb7ea
Conflict:NA
---
login-utils/last.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/login-utils/last.c b/login-utils/last.c
index bbbe817f8..f5a9fec08 100644
--- a/login-utils/last.c
+++ b/login-utils/last.c
@@ -351,7 +351,10 @@ static int time_formatter(int fmt, char *dst, size_t dlen, time_t *when)
{
char buf[CTIME_BUFSIZ];
- ctime_r(when, buf);
+ if (!ctime_r(when, buf)) {
+ ret = -1;
+ break;
+ }
snprintf(dst, dlen, "%s", buf);
ret = rtrim_whitespace((unsigned char *) dst);
break;
--
2.33.0