From: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Date: Wed, 30 Jun 2021 08:27:21 +0000 (+0800)
Subject: lib/ss/error.c: check return value malloc in ss_name()
X-Git-Tag: v1.46.3~17
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a6aee13bc2b9557c25942a197e6d7a5ec7504fe8;p=thirdparty%2Fe2fsprogs.git

lib/ss/error.c: check return value malloc in ss_name()

In ss_name(), we should check return value of malloc(),
otherwise, it may cause a segmentation fault problem.

Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Signed-off-by: Wu Guanghao <wuguanghao3@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---

diff --git a/lib/ss/error.c b/lib/ss/error.c
index 8d345a9f0..656b71beb 100644
--- a/lib/ss/error.c
+++ b/lib/ss/error.c
@@ -42,6 +42,8 @@ char *ss_name(int sci_idx)
 			 (strlen(infop->subsystem_name)+
 			  strlen(infop->current_request)+
 			  4));
+	if (ret_val == (char *)NULL)
+		return ((char *)NULL);
 	cp = ret_val;
 	cp1 = infop->subsystem_name;
 	while (*cp1)