From 954ff0468f8bc17baed4673b2458cf8377f0b9ea Mon Sep 17 00:00:00 2001
From: Vasily Averin <vvs@virtuozzo.com>
Date: Wed, 7 Nov 2018 22:36:23 -0500
Subject: [PATCH] ext4: fix buffer leak in __ext4_read_dirblock() on error path
commit de59fae0043f07de5d25e02ca360f7d57bfa5866 upstream.
Fixes: dc6982ff4db1 ("ext4: refactor code to read directory blocks ...")
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org # 3.9
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/namei.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index f6a63029b24d..aa08e129149d 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -124,6 +124,7 @@ static struct buffer_head *__ext4_read_dirblock(struct inode *inode,
if (!is_dx_block && type == INDEX) {
ext4_error_inode(inode, func, line, block,
"directory leaf block found instead of index block");
+ brelse(bh);
return ERR_PTR(-EFSCORRUPTED);
}
if (!ext4_has_metadata_csum(inode->i_sb) ||