This is a note to let you know that I've just added the patch titled drm/virtio: Correct drm_gem_shmem_get_sg_table() error handling to the 5.10-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-virtio-correct-drm_gem_shmem_get_sg_table-error-handling.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 64b88afbd92fbf434759d1896a7cf705e1c00e79 Mon Sep 17 00:00:00 2001 From: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx> Date: Thu, 30 Jun 2022 23:07:18 +0300 Subject: drm/virtio: Correct drm_gem_shmem_get_sg_table() error handling From: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx> commit 64b88afbd92fbf434759d1896a7cf705e1c00e79 upstream. Previous commit fixed checking of the ERR_PTR value returned by drm_gem_shmem_get_sg_table(), but it missed to zero out the shmem->pages, which will crash virtio_gpu_cleanup_object(). Add the missing zeroing of the shmem->pages. Fixes: c24968734abf ("drm/virtio: Fix NULL vs IS_ERR checking in virtio_gpu_object_shmem_init") Reviewed-by: Emil Velikov <emil.l.velikov@xxxxxxxxx> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx> Link: http://patchwork.freedesktop.org/patch/msgid/20220630200726.1884320-2-dmitry.osipenko@xxxxxxxxxxxxx Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Ovidiu Panait <ovidiu.panait@xxxxxxxxxxxxx> --- drivers/gpu/drm/virtio/virtgpu_object.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpu/drm/virtio/virtgpu_object.c +++ b/drivers/gpu/drm/virtio/virtgpu_object.c @@ -159,6 +159,7 @@ static int virtio_gpu_object_shmem_init( shmem->pages = drm_gem_shmem_get_sg_table(&bo->base.base); if (IS_ERR(shmem->pages)) { drm_gem_shmem_unpin(&bo->base.base); + shmem->pages = NULL; return PTR_ERR(shmem->pages); } Patches currently in stable-queue which might be from dmitry.osipenko@xxxxxxxxxxxxx are queue-5.10/drm-virtio-correct-drm_gem_shmem_get_sg_table-error-handling.patch