Antonio Quartulli aa6358430a drm/amdgpu: prevent NULL pointer dereference if ATIF is not supported ... commit a6dd15981c03f2cdc9a351a278f09b5479d53d2e upstream. acpi_evaluate_object() may return AE_NOT_FOUND (failure), which would result in dereferencing buffer.pointer (obj) while being NULL. Although this case may be unrealistic for the current code, it is still better to protect against possible bugs. Bail out also when status is AE_NOT_FOUND. This fixes 1 FORWARD_NULL issue reported by Coverity Report: CID 1600951: Null pointer dereferences (FORWARD_NULL) Signed-off-by: Antonio Quartulli <antonio@mandelbit.com> Fixes: c9b7c809b89f ("drm/amd: Guard against bad data for ATIF ACPI method") Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Link: https://lore.kernel.org/r/20241031152848.4716-1-antonio@mandelbit.com Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit 91c9e221fe2553edf2db71627d8453f083de87a1) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-11-30 02:33:24 +01:00
..
amd	drm/amdgpu: prevent NULL pointer dereference if ATIF is not supported	2024-11-30 02:33:24 +01:00
arc
arm	Revert "drm: komeda: Fix an issue related to normalized zpos"	2024-11-24 00:23:33 +01:00
armada
aspeed
ast
atmel-hlcdc
bochs
bridge	drm/bridge: analogix_dp: properly handle zero sized AUX transactions	2024-11-23 23:20:30 +01:00
etnaviv	drm/etnaviv: fix DMA direction handling for cached RW buffers	2024-11-23 23:20:09 +01:00
exynos	Revert "drivers:drm:exynos_drm_gsc:Fix wrong assignment in gsc_bind()"	2024-11-24 00:23:24 +01:00
fsl-dcu
gma500	drm/gma500: fix null pointer dereference in psb_intel_lvds_get_modes	2024-11-23 23:20:12 +01:00
hisilicon
i2c
i810
i915	Revert "drm/i915/fence: Mark debug_fence_init_onstack() with __maybe_unused"	2024-11-24 00:23:36 +01:00
imx	drm/imx/ipuv3: do not return negative values from .get_modes()	2024-11-19 09:22:36 +01:00
ingenic
lib
lima	drm/lima: set gp bus_stop bit before hard reset	2024-11-23 23:20:45 +01:00
mcde
mediatek	drm/mediatek: Add 0 size check to mtk_drm_gem_obj	2024-11-19 12:26:57 +01:00
meson	drm/meson: plane: Add error handling	2024-11-23 23:20:58 +01:00
mga
mgag200	drm/mgag200: Set DDC timeout in milliseconds	2024-11-23 23:20:30 +01:00
msm	Revert "drm/msm/adreno: Fix error return if missing firmware-name"	2024-11-24 00:23:35 +01:00
mxsfb
nouveau	Revert "nouveau/dmem: Fix vulnerability in migrate_to_ram upon copy error"	2024-11-24 00:22:55 +01:00
omapdrm	Revert "drm: omapdrm: Add missing check for alloc_ordered_workqueue"	2024-11-24 00:23:03 +01:00
panel	drm/panel: boe-tv101wum-nl6: Check for errors on the NOP in prepare()	2024-11-23 23:20:08 +01:00
panfrost	drm/panfrost: Mark simple_ondemand governor as softdep	2024-11-23 23:20:16 +01:00
pl111
qxl	drm/qxl: Add check for drm_cvt_mode	2024-11-23 23:20:09 +01:00
r128
radeon	Revert "drm/radeon: Replace one-element array with flexible-array member"	2024-11-24 00:23:26 +01:00
rcar-du
rockchip	Revert "drm/rockchip: vop: Allow 4096px width scaling"	2024-11-24 00:23:26 +01:00
samsung	Revert "exynos_gpu: Don't allow userspace to control freqs"	2024-11-24 19:22:36 +01:00
savage
scheduler	Revert "drm/sched: Add locking to drm_sched_entity_modify_sched"	2024-11-24 00:23:01 +01:00
selftests
shmobile
sis
sti
stm	Revert "drm/stm: Fix an error handling path in stm_drm_platform_probe()"	2024-11-24 00:23:26 +01:00
sun4i
tdfx
tegra	drm/tegra: put drm_gem_object ref on error in tegra_fb_create	2024-11-19 08:44:54 +01:00
tidss	drm/tidss: Fix initial plane zpos values	2024-11-19 08:44:54 +01:00
tilcdc
tiny
ttm	drm/vmwgfx: Fix some static checker warnings	2024-11-19 09:22:15 +01:00
tve200
udl
v3d
vboxvideo	drm/vboxvideo: Replace fake VLA at end of vbva_mouse_pointer_shape with real VLA	2024-11-23 23:22:00 +01:00
vc4	drm: vc4: Fix possible null pointer dereference	2024-11-19 12:26:58 +01:00
vgem
via
virtio
vkms
vmwgfx	Revert "drm/vmwgfx: Handle surface check failure correctly"	2024-11-24 00:22:52 +01:00
xen
xlnx
zte
drm_agpsupport.c
drm_atomic.c
drm_atomic_helper.c
drm_atomic_state_helper.c
drm_atomic_uapi.c	Revert "drm: Consistently use struct drm_mode_rect for FB_DAMAGE_CLIPS"	2024-11-24 00:23:04 +01:00
drm_auth.c
drm_blend.c
drm_bridge.c
drm_bridge_connector.c
drm_bufs.c
drm_cache.c
drm_client.c
drm_client_modeset.c	drm/client: fix null pointer dereference in drm_client_modeset_probe	2024-11-23 23:20:27 +01:00
drm_color_mgmt.c
drm_connector.c
drm_context.c
drm_crtc.c	Revert "drm/crtc: fix uninitialized variable use even harder"	2024-11-24 00:22:59 +01:00
drm_crtc_helper.c
drm_crtc_helper_internal.h
drm_crtc_internal.h
drm_damage_helper.c
drm_debugfs.c
drm_debugfs_crc.c
drm_dma.c
drm_dp_aux_dev.c
drm_dp_cec.c
drm_dp_dual_mode_helper.c
drm_dp_helper.c
drm_dp_mst_topology.c
drm_dp_mst_topology_internal.h
drm_drv.c	drm/drv: propagate errors from drm_modeset_register_all()	2024-11-18 12:12:40 +01:00
drm_dsc.c
drm_dumb_buffers.c
drm_edid.c
drm_edid_load.c
drm_encoder.c
drm_encoder_slave.c
drm_fb_cma_helper.c
drm_fb_helper.c
drm_file.c	drm/drm_file: fix use of uninitialized variable	2024-11-18 12:13:17 +01:00
drm_flip_work.c
drm_format_helper.c
drm_fourcc.c
drm_framebuffer.c	drm/framebuffer: Fix use of uninitialized variable	2024-11-18 12:13:18 +01:00
drm_gem.c
drm_gem_cma_helper.c
drm_gem_framebuffer_helper.c
drm_gem_shmem_helper.c	drm/shmem-helper: Fix BUG_ON() on mmap(PROT_WRITE, MAP_PRIVATE)	2024-11-23 23:22:06 +01:00
drm_gem_ttm_helper.c
drm_gem_vram_helper.c
drm_hashtab.c
drm_hdcp.c
drm_internal.h
drm_ioc32.c
drm_ioctl.c
drm_irq.c
drm_kms_helper_common.c
drm_lease.c
drm_legacy.h
drm_legacy_misc.c
drm_lock.c
drm_managed.c
drm_memory.c
drm_mipi_dbi.c
drm_mipi_dsi.c	Revert "drm/mipi-dsi: Set the fwnode for mipi_dsi_device"	2024-11-23 23:22:06 +01:00
drm_mm.c
drm_mode_config.c
drm_mode_object.c
drm_modes.c
drm_modeset_helper.c
drm_modeset_lock.c
drm_of.c
drm_panel.c	drm/panel: do not return negative error codes from drm_panel_get_modes()	2024-11-19 09:22:36 +01:00
drm_panel_orientation_quirks.c	Revert "drm: panel-orientation-quirks: Add quirk for OrangePi Neo"	2024-11-24 00:23:49 +01:00
drm_pci.c
drm_plane.c	drm: Don't unref the same fb many times by mistake due to deadlock handling	2024-11-18 12:13:03 +01:00
drm_plane_helper.c
drm_prime.c
drm_print.c	Revert "drm/printer: Allow NULL data in devcoredump printer"	2024-11-24 00:23:06 +01:00
drm_probe_helper.c
drm_property.c
drm_rect.c
drm_scatter.c
drm_scdc_helper.c
drm_self_refresh_helper.c
drm_simple_kms_helper.c
drm_syncobj.c	drm/syncobj: call drm_syncobj_fence_add_wait when WAIT_AVAILABLE flag is set	2024-11-18 22:25:42 +01:00
drm_sysfs.c
drm_trace.h
drm_trace_points.c
drm_vblank.c
drm_vblank_work.c
drm_vm.c
drm_vma_manager.c
drm_writeback.c
Kconfig
Makefile