linux-ext4 - Re: Add missing brelse to xattr code.

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Message-ID: <20131112010836.GA30433@thunk.org>
Date:	Mon, 11 Nov 2013 20:08:36 -0500
From:	Theodore Ts'o <tytso@....edu>
To:	Dave Jones <davej@...hat.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: Add missing brelse to xattr code.

On Wed, Nov 06, 2013 at 10:45:46AM -0500, Dave Jones wrote:
> This code was recently patched to not leak memory on the retry path,
> but it seems we are also forgetting to brelse the bufferhead.
>    
> Signed-off-by: Dave Jones <davej@...oraproject.org>

Thanks, I have this fix in my tree already.

Cheers,

					- Ted

commit dcb9917ba041866686fe152850364826c4622a36
Author: Theodore Ts'o <tytso@....edu>
Date:   Thu Oct 31 23:00:24 2013 -0400

    ext4: avoid bh leak in retry path of ext4_expand_extra_isize_ea()
    
    Reported-by: Dave Jones <davej@...hat.com>
    Signed-off-by: "Theodore Ts'o" <tytso@....edu>
    Cc: stable@...r.kernel.org

diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 03e9beb..1423c48 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -1352,6 +1352,7 @@ retry:
 					new_extra_isize = s_min_extra_isize;
 					kfree(is); is = NULL;
 					kfree(bs); bs = NULL;
+					brelse(bh);
 					goto retry;
 				}
 				error = -1;

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