linux-kernel - [PATCH 2/7] ext4: possible sbi->s_group_desc leak in ext4_fill

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Message-ID: <4b554ca1-f46e-742e-4aaa-04b379baf5f9@virtuozzo.com>
Date:   Wed, 31 Oct 2018 22:12:27 +0300
From:   Vasily Averin <vvs@...tuozzo.com>
To:     linux-ext4@...r.kernel.org, Theodore Ts'o <tytso@....edu>
Cc:     Andreas Dilger <adilger.kernel@...ger.ca>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/7] ext4: possible sbi->s_group_desc leak in ext4_fill_super

Fixes bfe0a5f47ada ("ext4: add more mount time checks of the superblock") # 4.18

Signed-off-by: Vasily Averin <vvs@...tuozzo.com>
---
 fs/ext4/super.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index a221f1cdf704..ed4d36506ec2 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4100,7 +4100,8 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 			 le32_to_cpu(es->s_inodes_count),
 			 ((u64)sbi->s_groups_count * sbi->s_inodes_per_group));
 		ret = -EINVAL;
-		goto failed_mount;
+		db_count = 0;
+		goto failed_mount2;
 	}
 
 	bgl_lock_init(sbi->s_blockgroup_lock);
-- 
2.17.1