linux-kernel - [PATCH 1/6] udf: fix memory leak while allocating blocks during write

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 10 Oct 2012 00:08:56 +0900
From:	Namjae Jeon <linkinjeon@...il.com>
To:	jack@...e.cz
Cc:	linux-kernel@...r.kernel.org, Namjae Jeon <linkinjeon@...il.com>,
	Namjae Jeon <namjae.jeon@...sung.com>,
	Ashish Sangwan <a.sangwan@...sung.com>
Subject: [PATCH 1/6] udf: fix memory leak while allocating blocks during write

From: Namjae Jeon <namjae.jeon@...sung.com>

Need to brelse the buffer_head stored in cur_epos and next_epos.

Signed-off-by: Namjae Jeon <namjae.jeon@...sung.com>
Signed-off-by: Ashish Sangwan <a.sangwan@...sung.com>
---
 fs/udf/inode.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index df88b95..2b77593 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -765,6 +765,8 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
 				goal, err);
 		if (!newblocknum) {
 			brelse(prev_epos.bh);
+			brelse(cur_epos.bh);
+			brelse(next_epos.bh);
 			*err = -ENOSPC;
 			return 0;
 		}
@@ -795,6 +797,8 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
 	udf_update_extents(inode, laarr, startnum, endnum, &prev_epos);
 
 	brelse(prev_epos.bh);
+	brelse(cur_epos.bh);
+	brelse(next_epos.bh);
 
 	newblock = udf_get_pblock(inode->i_sb, newblocknum,
 				iinfo->i_location.partitionReferenceNum, 0);
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/