summaryrefslogtreecommitdiff
path: root/fs/ntfs3
diff options
context:
space:
mode:
authorJiasheng Jiang <jiasheng@iscas.ac.cn>2022-11-23 11:48:46 +0300
committerKonstantin Komarov <almaz.alexandrovich@paragon-software.com>2023-03-27 15:59:08 +0300
commite6c3cef24cb0d045f99d5cb039b344874e3cfd74 (patch)
treec162f364cfd5836d7d8f78ddd4157739727354e1 /fs/ntfs3
parentbfa434c60157c9793e9b12c9b68ade02aff9f803 (diff)
downloadlinux-e6c3cef24cb0d045f99d5cb039b344874e3cfd74.tar.xz
fs/ntfs3: Add check for kmemdup
Since the kmemdup may return NULL pointer, it should be better to add check for the return value in order to avoid NULL pointer dereference. Fixes: b46acd6a6a62 ("fs/ntfs3: Add NTFS journal") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Diffstat (limited to 'fs/ntfs3')
-rw-r--r--fs/ntfs3/fslog.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ntfs3/fslog.c b/fs/ntfs3/fslog.c
index c6eb371a3695..dc723f03d6bb 100644
--- a/fs/ntfs3/fslog.c
+++ b/fs/ntfs3/fslog.c
@@ -4256,6 +4256,10 @@ check_attribute_names:
rec_len -= t32;
attr_names = kmemdup(Add2Ptr(lrh, t32), rec_len, GFP_NOFS);
+ if (!attr_names) {
+ err = -ENOMEM;
+ goto out;
+ }
lcb_put(lcb);
lcb = NULL;