[PATCH v3 11/12] misc/lsattr: check whether path is NULL in lsattr_dir_proc()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Zhiqiang Liu <liuzhiqiang26@xxxxxxxxxx>

In lsattr_dir_proc(), if malloc() return NULL, it will cause
a segmentation fault problem.

Signed-off-by: Zhiqiang Liu <liuzhiqiang26@xxxxxxxxxx>
Signed-off-by: Wu Guanghao <wuguanghao3@xxxxxxxxxx>
---
 misc/lsattr.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/misc/lsattr.c b/misc/lsattr.c
index 0d954376..7958f0ad 100644
--- a/misc/lsattr.c
+++ b/misc/lsattr.c
@@ -144,6 +144,11 @@ static int lsattr_dir_proc (const char * dir_name, struct dirent * de,
 	int dir_len = strlen(dir_name);
 
 	path = malloc(dir_len + strlen (de->d_name) + 2);
+	if (!path) {
+		fputs(_("Couldn't allocate path variable in lsattr_dir_proc"),
+			stderr);
+		return -1;
+	}
 
 	if (dir_len && dir_name[dir_len-1] == '/')
 		sprintf (path, "%s%s", dir_name, de->d_name);
-- 
2.27.0




[Index of Archives]     [Reiser Filesystem Development]     [Ceph FS]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite National Park]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]     [Linux Media]

  Powered by Linux