The patch e2b76ab8b5c9: "ksmbd: add support for read compound" leads
to the following Smatch static checker warning:
fs/smb/server/smb2pdu.c:6329 smb2_read()
warn: passing freed memory 'aux_payload_buf'
It doesn't matter that we're passing a freed variable because nbytes is
zero. This patch set "aux_payload_buf = NULL" to make smatch silence.
Fixes: e2b76ab8b5c9 ("ksmbd: add support for read compound")
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Namjae Jeon <linkinjeon@xxxxxxxxxx>
---
fs/smb/server/smb2pdu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index 749660110878..544022dd6d20 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -6312,7 +6312,7 @@ int smb2_read(struct ksmbd_work *work)
aux_payload_buf,
nbytes);
kvfree(aux_payload_buf);
-
+ aux_payload_buf = NULL;
nbytes = 0;
if (remain_bytes < 0) {
err = (int)remain_bytes;
--
2.25.1
