[3.11.y.z extended stable] Patch "drm/qxl: fix memory leak in release list handling" has been added to staging queue

Luis Henriques luis.henriques at canonical.com
Thu Dec 5 11:21:45 UTC 2013


This is a note to let you know that I have just added a patch titled

    drm/qxl: fix memory leak in release list handling

to the linux-3.11.y-queue branch of the 3.11.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.11.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.11.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

------

>From 45fd109106ea383bbab6d5392a41407691972eb3 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied at redhat.com>
Date: Thu, 28 Nov 2013 05:39:03 +0000
Subject: drm/qxl: fix memory leak in release list handling

commit 1b28c3e628315ac0d9ef2d3fac0403f05ae692db upstream.

wow no idea how I got this far without seeing this,
leaking the entries in the list makes kmalloc-64 slab grow.

References: https://bugzilla.kernel.org/show_bug.cgi?id=65121
Reported-by: Matthew Stapleton <matthew4196 at gmail.com>
Signed-off-by: Dave Airlie <airlied at redhat.com>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 drivers/gpu/drm/qxl/qxl_release.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c
index b61449e..8c1909a 100644
--- a/drivers/gpu/drm/qxl/qxl_release.c
+++ b/drivers/gpu/drm/qxl/qxl_release.c
@@ -92,6 +92,7 @@ qxl_release_free(struct qxl_device *qdev,
 						- DRM_FILE_OFFSET);
 		qxl_fence_remove_release(&bo->fence, release->id);
 		qxl_bo_unref(&bo);
+		kfree(entry);
 	}
 	spin_lock(&qdev->release_idr_lock);
 	idr_remove(&qdev->release_idr, release->id);
--
1.8.3.2





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