[PATCH] smb: client: compress: fix a potential issue of freeing an invalid pointer

From: Qianqiang Liu
Date: Thu Sep 12 2024 - 20:02:37 EST


The dst pointer may not be initialized when calling kvfree(dst)

Fixes: 13b68d44990d9 ("smb: client: compress: LZ77 code improvements cleanup")
Signed-off-by: Qianqiang Liu <qianqiang.liu@xxxxxxx>
---
fs/smb/client/compress.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/smb/client/compress.c b/fs/smb/client/compress.c
index 65d3d219e8bc..daf84e39861c 100644
--- a/fs/smb/client/compress.c
+++ b/fs/smb/client/compress.c
@@ -318,7 +318,7 @@ int smb_compress(struct TCP_Server_Info *server, struct smb_rqst *rq, compress_s
{
struct iov_iter iter;
u32 slen, dlen;
- void *src, *dst;
+ void *src, *dst = NULL;
int ret;

if (!server || !rq || !rq->rq_iov || !rq->rq_iov->iov_base)
--
2.34.1