iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fs/ntfs3: Add check for kmemdup

Browse Source 
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: b46acd6a6a ("fs/ntfs3: Add NTFS journal")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
This commit is contained in:
Jiasheng Jiang 2022-11-23 16:48:46 +08:00 committed by Konstantin Komarov
parent bfa434c601
commit e6c3cef24c
No known key found for this signature in database
GPG Key ID: A9B0331F832407B6
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
fs/ntfs3/fslog.c
View File

@ -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;