Re: [PATCH] ext4: Avoid memory leak of ext4_groupinfo_caches in ext4_groupinfo_create_slab.
From: Ted Ts'o <tytso@mit.edu>
Date: 2011-07-11 22:37:48
From: Ted Ts'o <tytso@mit.edu>
Date: 2011-07-11 22:37:48
On Mon, Jul 11, 2011 at 11:26:55PM +0800, Tao Ma wrote:
From: Tao Ma <redacted> In ext4_groupinfo_create_slab, we create ext4_groupinfo_caches within ext4_grpinfo_slab_create_mutex, but set it outside the lock, and there does exist some case that we may create it twice and causes a memory leak. So set it before we call mutex_unlock. Signed-off-by: Tao Ma <redacted>
Applied, with a slightly reworded one-line summary:
ext4: fix a race which could leak memory in ext4_groupinfo_create_slab()
- Ted