* [PATCH] fs/ntfs3: Add missing check for kmemdup
@ 2022-12-20 7:43 Jiasheng Jiang
0 siblings, 0 replies; only message in thread
From: Jiasheng Jiang @ 2022-12-20 7:43 UTC (permalink / raw)
To: almaz.alexandrovich, nathan, ndesaulniers, trix
Cc: ntfs3, linux-kernel, llvm, Jiasheng Jiang
Add check for the return value of the kmemdup since
it may return NULL pointer if allocation fails.
Fixes: b46acd6a6a62 ("fs/ntfs3: Add NTFS journal")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
---
fs/ntfs3/fslog.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/fs/ntfs3/fslog.c b/fs/ntfs3/fslog.c
index 0d611a6c5511..eb7cf8a69607 100644
--- a/fs/ntfs3/fslog.c
+++ b/fs/ntfs3/fslog.c
@@ -4277,6 +4277,10 @@ 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;
--
2.25.1
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