This is a note to let you know that I've just added the patch titled
drm/nouveau: prevent userspace from deleting client object
to the 4.9-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-nouveau-prevent-userspace-from-deleting-client-object.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Thu Jun 15 12:25:36 CEST 2017
From: Ben Skeggs <bskeggs@xxxxxxxxxx>
Date: Tue, 23 May 2017 21:54:08 -0400
Subject: drm/nouveau: prevent userspace from deleting client object
From: Ben Skeggs <bskeggs@xxxxxxxxxx>
[ Upstream commit c966b6279f610a24ac1d42dcbe30e10fa61220b2 ]
Signed-off-by: Ben Skeggs <bskeggs@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/nouveau/nouveau_usif.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/nouveau/nouveau_usif.c
+++ b/drivers/gpu/drm/nouveau/nouveau_usif.c
@@ -313,7 +313,8 @@ usif_ioctl(struct drm_file *filp, void _
if (!(ret = nvif_unpack(-ENOSYS, &data, &size, argv->v0, 0, 0, true))) {
/* block access to objects not created via this interface */
owner = argv->v0.owner;
- if (argv->v0.object == 0ULL)
+ if (argv->v0.object == 0ULL &&
+ argv->v0.type != NVIF_IOCTL_V0_DEL)
argv->v0.owner = NVDRM_OBJECT_ANY; /* except client */
else
argv->v0.owner = NVDRM_OBJECT_USIF;
Patches currently in stable-queue which might be from bskeggs@xxxxxxxxxx are
queue-4.9/drm-nouveau-prevent-userspace-from-deleting-client-object.patch