From: Wei Yongjun <weiyongjun1@huawei.com>
Date: Wed, 6 May 2020 14:25:54 +0000 (+0000)
Subject: exfat: fix possible memory leak in exfat_find()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=94182167ec730dadcaea5fbc6bb8f1136966ef66;p=linux.git

exfat: fix possible memory leak in exfat_find()

'es' is malloced from exfat_get_dentry_set() in exfat_find() and should
be freed before leaving from the error handling cases, otherwise it will
cause memory leak.

Fixes: 5f2aa075070c ("exfat: add inode operations")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
---

diff --git a/fs/exfat/namei.c b/fs/exfat/namei.c
index b72d782568b81..a2659a8a68a14 100644
--- a/fs/exfat/namei.c
+++ b/fs/exfat/namei.c
@@ -692,6 +692,7 @@ static int exfat_find(struct inode *dir, struct qstr *qname,
 			exfat_fs_error(sb,
 				"non-zero size file starts with zero cluster (size : %llu, p_dir : %u, entry : 0x%08x)",
 				i_size_read(dir), ei->dir.dir, ei->entry);
+			kfree(es);
 			return -EIO;
 		}