This is a note to let you know that I've just added the patch titled
drm/vc4: Fix oops when userspace hands in a bad BO.
to the 4.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-vc4-fix-oops-when-userspace-hands-in-a-bad-bo.patch
and it can be found in the queue-4.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 552416c146fadc67cd9b53ef7adf88d3381c43a6 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@xxxxxxxxxx>
Date: Tue, 26 Jul 2016 13:47:15 -0700
Subject: drm/vc4: Fix oops when userspace hands in a bad BO.
From: Eric Anholt <eric@xxxxxxxxxx>
commit 552416c146fadc67cd9b53ef7adf88d3381c43a6 upstream.
We'd end up NULL pointer dereferencing because we didn't take the
error path out in the parent. Fixes igt vc4_lookup_fail test.
Signed-off-by: Eric Anholt <eric@xxxxxxxxxx>
Fixes: d5b1a78a772f ("drm/vc4: Add support for drawing 3D frames.")
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/vc4/vc4_gem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/vc4/vc4_gem.c
+++ b/drivers/gpu/drm/vc4/vc4_gem.c
@@ -575,7 +575,7 @@ vc4_cl_lookup_bos(struct drm_device *dev
fail:
drm_free_large(handles);
- return 0;
+ return ret;
}
static int
Patches currently in stable-queue which might be from eric@xxxxxxxxxx are
queue-4.7/drm-vc4-fix-oops-when-userspace-hands-in-a-bad-bo.patch
queue-4.7/drm-vc4-use-drm_free_large-on-handles-to-match-its-allocation.patch
queue-4.7/drm-vc4-fix-overflow-mem-unreferencing-when-the-binner-runs-dry.patch
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