android/android_kernel_samsung_sm8650
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

fs/ntfs3: Add check for kmemdup

Browse Source 
[ Upstream commit e6c3cef24cb0d045f99d5cb039b344874e3cfd74 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jiasheng Jiang 2022-11-23 16:48:46 +08:00 committed by Greg Kroah-Hartman
parent 1bc6bb657d
commit 7898db22ed
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

@ -4258,6 +4258,10 @@ int log_replay(struct ntfs_inode *ni, bool *initialized)
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;