This is a note to let you know that I've just added the patch titled drm/vc4: Return -EINVAL on the overflow checks failing. 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-vc4-return-einval-on-the-overflow-checks-failing.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 6b8ac63847bc2f958dd93c09edc941a0118992d9 Mon Sep 17 00:00:00 2001 From: Eric Anholt <eric@xxxxxxxxxx> Date: Tue, 17 Jan 2017 21:58:06 +1100 Subject: drm/vc4: Return -EINVAL on the overflow checks failing. From: Eric Anholt <eric@xxxxxxxxxx> commit 6b8ac63847bc2f958dd93c09edc941a0118992d9 upstream. By failing to set the errno, we'd continue on to trying to set up the RCL, and then oops on trying to dereference the tile_bo that binning validation should have set up. Reported-by: Ingo Molnar <mingo@xxxxxxxxxx> 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 | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpu/drm/vc4/vc4_gem.c +++ b/drivers/gpu/drm/vc4/vc4_gem.c @@ -601,6 +601,7 @@ vc4_get_bcl(struct drm_device *dev, stru sizeof(struct vc4_shader_state)) || temp_size < exec_size) { DRM_ERROR("overflow in exec arguments\n"); + ret = -EINVAL; goto fail; } Patches currently in stable-queue which might be from eric@xxxxxxxxxx are queue-4.9/drm-vc4-return-einval-on-the-overflow-checks-failing.patch queue-4.9/drm-vc4-fix-memory-leak-of-the-crtc-state.patch queue-4.9/drm-vc4-fix-an-integer-overflow-in-temporary-allocation-layout.patch queue-4.9/drm-vc4-fix-a-bounds-check.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html