Justin Green d17b75ee9c drm/mediatek: Add 0 size check to mtk_drm_gem_obj ...

[ Upstream commit 1e4350095e8ab2577ee05f8c3b044e661b5af9a0 ]

Add a check to mtk_drm_gem_init if we attempt to allocate a GEM object
of 0 bytes. Currently, no such check exists and the kernel will panic if
a userspace application attempts to allocate a 0x0 GBM buffer.

Tested by attempting to allocate a 0x0 GBM buffer on an MT8188 and
verifying that we now return EINVAL.

Fixes: 119f517362 ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.")
Signed-off-by: Justin Green <greenjustin@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://patchwork.kernel.org/project/dri-devel/patch/20240307180051.4104425-1-greenjustin@chromium.org/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-06-16 13:32:11 +02:00

..

Kconfig

phy: mediatek: Move mtk_hdmi_phy driver into drivers/phy/mediatek folder

2020-09-06 07:03:21 +08:00

Makefile

phy: mediatek: Move mtk_hdmi_phy driver into drivers/phy/mediatek folder

2020-09-06 07:03:21 +08:00

mtk_cec.c

drm/mediatek: Fix mtk_cec_mask()

2022-06-09 10:21:00 +02:00

mtk_cec.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174

2019-05-30 11:26:41 -07:00

mtk_disp_color.c

drm/mediatek: Omit warning on probe defers

2020-04-13 13:01:16 +02:00

mtk_disp_ovl.c

drm/mediatek: Check if fb is null

2021-03-04 11:37:46 +01:00

mtk_disp_rdma.c

drm/mediatek: Omit warning on probe defers

2020-04-13 13:01:16 +02:00

mtk_dpi_regs.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174

2019-05-30 11:26:41 -07:00

mtk_dpi.c

drm/mediatek: Modify dpi power on/off sequence.

2023-01-14 10:15:29 +01:00

mtk_drm_crtc.c

drm/mediatek: Fix a null pointer crash in mtk_drm_crtc_finish_page_flip

2024-03-26 18:21:59 -04:00

mtk_drm_crtc.h

drm/mediatek: update cursors by using async atomic update

2019-12-20 16:19:11 +08:00

mtk_drm_ddp_comp.c

drm/mediatek: Add AAL output size configuration

2021-08-26 08:35:43 -04:00

mtk_drm_ddp_comp.h

soc / drm: mediatek: Move DDP component defines into mtk-mmsys.h

2021-08-26 08:35:42 -04:00

mtk_drm_ddp.c

soc / drm: mediatek: Move routing control to mmsys device

2020-04-13 13:01:16 +02:00

mtk_drm_ddp.h

soc / drm: mediatek: Move routing control to mmsys device

2020-04-13 13:01:16 +02:00

mtk_drm_drv.c

drm/mediatek: Clean dangling pointer on bind error path

2023-03-11 16:39:35 +01:00

mtk_drm_drv.h

soc / drm: mediatek: Move routing control to mmsys device

2020-04-13 13:01:16 +02:00

mtk_drm_gem.c

drm/mediatek: Add 0 size check to mtk_drm_gem_obj

2024-06-16 13:32:11 +02:00

mtk_drm_gem.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174

2019-05-30 11:26:41 -07:00

mtk_drm_plane.c

drm/mediatek: Check plane visibility in atomic_update

2020-06-27 10:08:03 +08:00

mtk_drm_plane.h

drm/mediatek: update cursors by using async atomic update

2019-12-20 16:19:11 +08:00

mtk_dsi.c

drm/mediatek: dsi: Fix DSI RGB666 formats and definitions

2024-03-26 18:21:58 -04:00

mtk_hdmi_ddc.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174

2019-05-30 11:26:41 -07:00

mtk_hdmi_regs.h

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174

2019-05-30 11:26:41 -07:00

mtk_hdmi.c

Merge tag 'drm-next-2020-10-15' of git://anongit.freedesktop.org/drm/drm

2020-10-15 10:46:16 -07:00

mtk_hdmi.h

drm/mediatek: Separate mtk_hdmi_phy to an independent module

2020-09-06 07:02:54 +08:00

mtk_mipi_tx.c

phy: mediatek: Fix missing check in mtk_mipi_tx_probe

2022-01-27 10:54:24 +01:00

mtk_mipi_tx.h

drm/mediatek: config mipitx impedance with calibration data

2020-04-22 07:10:36 +08:00

mtk_mt8173_mipi_tx.c

drm/mediatek: separate mipi_tx to different file

2019-10-07 12:29:37 +08:00

mtk_mt8183_mipi_tx.c

drm/mediatek: config mipitx impedance with calibration data

2020-04-22 07:10:36 +08:00