[PATCH 1/2] smb/server: fix memory leak in ksmbd_krb5_authenticate()

[ZhangGuoDong <zhang.guodong@linux.dev>]

From: ZhangGuoDong <zhangguodong@kylinos.cn>

ksmbd_ipc_login_request_ext() returns an independently allocated
response. ksmbd_alloc_user() copies the supplementary group IDs from
the response, but ksmbd_krb5_authenticate() does not release it.

Free the extended response after ksmbd_alloc_user() has finished with
it.

Signed-off-by: ZhangGuoDong <zhangguodong@kylinos.cn>
Reviewed-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
---
 fs/smb/server/auth.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/smb/server/auth.c b/fs/smb/server/auth.c
index 4e7b6f0e6b8c..e886ea5681ca 100644
--- a/fs/smb/server/auth.c
+++ b/fs/smb/server/auth.c
@@ -464,6 +464,7 @@ int ksmbd_krb5_authenticate(struct ksmbd_session *sess, char *in_blob,
 	*out_len = resp->spnego_blob_len;
 	retval = 0;
 out:
+	kvfree(resp_ext);
 	kvfree(resp);
 	return retval;
 }
-- 
2.43.0