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linux/drivers/gpu/drm
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Takashi Iwai 8599a39adc drm/i915: Fix invalid access to ACPI _DSM objects 
commit b6a37a93c9 upstream.

intel_dsm_platform_mux_info() tries to parse the ACPI package data
from _DSM for the debug information, but it assumes the fixed format
without checking what values are stored in the elements actually.
When an unexpected value is returned from BIOS, it may lead to GPF or
NULL dereference, as reported recently.

Add the checks of the contents in the returned values and skip the
values for invalid cases.

v1->v2: Check the info contents before dereferencing, too

BugLink: http://bugzilla.opensuse.org/show_bug.cgi?id=1184074
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210402082317.871-1-tiwai@suse.de
(cherry picked from commit 337d7a1621)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2021-04-14 08:41:58 +02:00
..
amd drm/amdgpu: check alignment on CPU page for bo map 2021-04-07 15:00:10 +02:00
arc drm/arc: Set GEM CMA functions with DRM_GEM_CMA_DRIVER_OPS 2020-06-10 09:02:03 +02:00
arm Linux 5.9-rc4 2020-09-08 14:41:40 +10:00
armada drm-misc-next for 5.10: 2020-09-23 09:52:24 +10:00
aspeed drm/aspeed: Fix Kconfig warning & subsequent build errors 2020-12-30 11:52:56 +01:00
ast drm/ast: Reload gamma LUT after changing primary plane's color format 2020-11-25 09:13:20 +01:00
atmel-hlcdc drm/atomic-helper: reset vblank on crtc reset 2020-07-02 20:25:51 +02:00
bochs Linux 5.8 2020-08-11 11:58:31 +10:00
bridge drm/bridge: sii902x: Enable I/O and core VCC supplies if present 2021-01-19 18:27:19 +01:00
etnaviv drm/etnaviv: Use FOLL_FORCE for userptr 2021-03-30 14:31:55 +02:00
exynos drm/exynos: depend on COMMON_CLK to fix compile tests 2020-11-23 10:01:32 +09:00
fsl-dcu Linux 5.9-rc4 2020-09-08 14:41:40 +10:00
gma500 gma500: clean up error handling in init 2021-03-04 11:37:36 +01:00
hisilicon drm/hisilicon: Fix use-after-free 2021-03-07 12:34:11 +01:00
i2c sound updates for 5.9 2020-08-06 14:27:31 -07:00
i810 drm/i810: make i810_flush_queue() return void 2020-09-11 10:54:17 +02:00
i915 drm/i915: Fix invalid access to ACPI _DSM objects 2021-04-14 08:41:58 +02:00
imx drm/imx: fix memory leak when fails to init 2021-04-07 15:00:11 +02:00
ingenic drm/ingenic: Fix bad revert 2020-10-12 20:26:14 +02:00
lib License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
lima drm/lima: fix reference leak in lima_pm_busy 2021-03-04 11:37:49 +01:00
mcde drm/mcde: Fix handling of platform_get_irq() error 2020-12-30 11:52:56 +01:00
mediatek drm/mediatek: Check if fb is null 2021-03-04 11:37:46 +01:00
meson drm: meson_drv add shutdown function 2021-03-17 17:06:19 +01:00
mga drm/mga: Don't include <drm/drm_pci.h> 2019-12-05 08:44:16 +01:00
mgag200 drm/mgag200: fix spelling mistake "expeced" -> "expected" 2020-08-27 11:17:52 +02:00
msm drm/msm/disp/dpu1: icc path needs to be set before dpu runtime resume 2021-04-10 13:36:09 +02:00
mxsfb drm: mxsfb: Silence -EPROBE_DEFER while waiting for bridge 2020-12-30 11:53:53 +01:00
nouveau drm/nouveau/kms: handle mDP connectors 2021-03-04 11:38:27 +01:00
omapdrm drm/omap: dmm_tiler: fix return error code in omap_dmm_probe() 2020-12-30 11:53:13 +01:00
panel drm/panel: kd35t133: allow using non-continuous dsi clock 2021-03-04 11:38:28 +01:00
panfrost drm/panfrost: Support cache-coherent integrations 2021-02-07 15:37:12 +01:00
pl111 drm: pl111: Update documentation 2020-07-23 10:06:22 +02:00
qxl qxl: Fix uninitialised struct field head.surface_id 2021-03-17 17:06:19 +01:00
r128 drm: delete drm_pci.h 2020-04-03 17:11:41 +02:00
radeon Merge tag 'amd-drm-fixes-5.10-2020-10-09' of git://people.freedesktop.org/~agd5f/linux into drm-next 2020-10-12 10:40:43 +10:00
rcar-du drm: rcar-du: Fix the return check of of_parse_phandle and of_find_device_by_node 2021-03-04 11:37:38 +01:00
rockchip drm/rockchip: Require the YTR modifier for AFBC 2021-03-04 11:38:28 +01:00
savage treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
scheduler drm/sched: Cancel and flush all outstanding jobs before finish. 2021-03-04 11:38:27 +01:00
selftests drm/mst: Add support for QUERY_STREAM_ENCRYPTION_STATUS MST sideband message 2020-09-01 13:02:33 +05:30
shmobile drm/shmobile: Set GEM CMA functions with DRM_GEM_CMA_DRIVER_OPS 2020-06-10 09:05:18 +02:00
sis drm/sis: Don't include <drm/drm_pci.h> 2019-12-05 08:44:55 +01:00
sti Linux 5.9-rc4 2020-09-08 14:41:40 +10:00
stm drm/stm: repair runtime power management 2020-07-08 11:47:01 +02:00
sun4i drm/sun4i: tcon: fix inverted DCLK polarity 2021-03-04 11:37:41 +01:00
tdfx drm/tdfx: Don't include <drm/drm_pci.h> 2019-12-05 08:45:01 +01:00
tegra drm/tegra: sor: Grab runtime PM reference across reset 2021-04-07 15:00:11 +02:00
tidss drm/tidss: implement WA for AM65xx erratum i2000 2020-08-21 15:17:05 +03:00
tilcdc treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
tiny drm: Use USB controller's DMA mask when importing dmabufs 2021-03-17 17:06:19 +01:00
ttm drm/ttm: fix eviction valuable range check. 2020-10-21 06:59:07 +10:00
tve200 drm/tve200: Fix handling of platform_get_irq() error 2020-12-30 11:52:56 +01:00
udl drm: Use USB controller's DMA mask when importing dmabufs 2021-03-17 17:06:19 +01:00
v3d drm/v3d: Fix double free in v3d_submit_cl_ioctl() 2020-10-26 11:43:31 +01:00
vboxvideo drm/vboxvideo: Use drm_gem_vram_vmap() interfaces 2020-09-14 09:12:24 +02:00
vc4 drm/vc4: hdmi: Update the CEC clock divider on HSM rate change 2021-03-04 11:37:49 +01:00
vgem drm/vgem: Use devm_drm_dev_alloc 2020-09-11 10:47:19 +02:00
via treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
virtio drm/virtio: use kvmalloc for large allocations 2021-03-07 12:34:04 +01:00
vkms drm/vkms: Use devm_drm_dev_alloc 2020-09-11 10:47:19 +02:00
vmwgfx RDMA 5.10 pull request 2020-10-17 11:18:18 -07:00
xen drm-misc-next for 5.10: 2020-09-23 09:52:24 +10:00
xlnx drm/xlnx: fix kmemleak by sending vblank_event in atomic_disable 2021-02-26 10:13:01 +01:00
zte sound updates for 5.9 2020-08-06 14:27:31 -07:00
drm_agpsupport.c drm: use DIV_ROUND_UP helper macro for calculations 2019-11-04 18:17:36 +01:00
drm_atomic.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_atomic_helper.c drm/atomic: put state on error path 2021-01-27 11:54:55 +01:00
drm_atomic_state_helper.c drm/atomic-helper: reset vblank on crtc reset 2020-07-02 20:25:51 +02:00
drm_atomic_uapi.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_auth.c drm/auth: make drm_{set,drop}master_ioctl symmetrical 2020-06-15 14:49:50 +01:00
drm_blend.c drm: plane: Verify that no or all planes have a zpos property 2020-05-14 02:10:52 +03:00
drm_bridge.c drm: bridge: Pass drm_display_info to drm_bridge_funcs .mode_valid() 2020-06-23 19:53:27 +02:00
drm_bridge_connector.c drm/bridge_connector: Set default status connected for eDP connectors 2020-08-26 19:11:41 +02:00
drm_bufs.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
drm_cache.c drm: core: fix common struct sg_table related issues 2020-09-10 08:17:48 +02:00
drm_client.c drm/client: Add drm_client_framebuffer_flush() 2020-05-26 13:31:01 +02:00
drm_client_modeset.c drm: Nuke mode->vrefresh 2020-05-27 14:31:42 +03:00
drm_color_mgmt.c drm/modeset-lock: Take the modeset BKL for legacy drivers 2020-08-17 13:41:50 -04:00
drm_connector.c drm: Replace mode->export_head with a boolean 2020-09-01 13:38:34 +03:00
drm_context.c drm: context: Clean up documentation 2020-03-16 09:23:55 +01:00
drm_crtc.c Linux 5.9-rc2 2020-08-25 11:00:02 +02:00
drm_crtc_helper.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_crtc_helper_internal.h drm/probe_helper: Add drm_connector_helper_funcs.mode_valid_ctx 2020-07-13 13:29:20 -04:00
drm_crtc_internal.h drm: convert .debugfs_init() hook to return void. 2020-03-18 17:53:28 +01:00
drm_damage_helper.c drm: damage_helper: Fix race checking plane->state->fb 2019-10-08 09:41:06 -04:00
drm_debugfs.c drm/debug: Expose connector VRR monitor range via debugfs 2020-06-25 15:47:14 -07:00
drm_debugfs_crc.c drm/crc-debugfs: Fix memleak in crc_control_write 2020-09-01 09:45:44 +02:00
drm_dma.c drm: delete drm_pci.h 2020-04-03 17:11:41 +02:00
drm_dp_aux_dev.c drm/dp_aux_dev: check aux_dev before use in drm_dp_aux_dev_get_by_minor() 2020-12-30 11:54:19 +01:00
drm_dp_cec.c drm_dp_cec: drop use of drmP.h 2019-10-08 18:29:00 +02:00
drm_dp_dual_mode_helper.c drm/dp: drmP.h include removal 2019-05-06 16:00:48 +03:00
drm_dp_helper.c drm/dp: fix kernel-doc warnings at drm_dp_helper.c 2020-10-27 11:20:36 +01:00
drm_dp_mst_topology.c drm/dp_mst: Don't cache EDIDs for physical ports 2021-03-04 11:37:49 +01:00
drm_dp_mst_topology_internal.h drm/dp_mst: Add sideband down request tracing + selftests 2019-09-03 19:30:06 -04:00
drm_drv.c drm/dev: Remove drm_dev_init 2020-09-21 10:45:08 +02:00
drm_dsc.c drm/dsc: Fix bogus cpu_to_be16() usage 2019-09-30 20:15:53 +03:00
drm_dumb_buffers.c Revert "drm/gem: Rename drm_gem_dumb_map_offset() to drm_gem_map_offset()" 2019-08-07 11:56:48 -04:00
drm_edid.c drm/edid: fix objtool warning in drm_cvt_modes() 2020-12-30 11:54:29 +01:00
drm_edid_load.c drm/print: add drm_debug_enabled() 2019-10-02 16:28:55 +03:00
drm_encoder.c drm/bridge: Make the bridge chain a double-linked list 2019-12-09 10:03:01 +01:00
drm_encoder_slave.c drm: encoder_slave: use new I2C API 2020-06-19 09:20:21 +02:00
drm_fb_cma_helper.c drm: Fix misspellings of "Analog Devices" 2020-04-21 08:15:03 +02:00
drm_fb_helper.c drm/fb-helper: Add missed unlocks in setcmap_legacy() 2021-03-04 11:37:36 +01:00
drm_file.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_flip_work.c drm: drop use of drmP.h in drm/* 2019-05-27 18:07:03 +02:00
drm_format_helper.c drm/format-helper: Add drm_fb_swab() 2020-05-26 13:33:08 +02:00
drm_fourcc.c drm: drm_fourcc: add NV15, Q410, Q401 YUV formats 2020-06-19 13:33:40 +01:00
drm_framebuffer.c gpu/drm: cleanup coding style a bit 2020-09-09 11:45:18 +02:00
drm_gem.c drm/shme-helpers: Fix dma_buf_mmap forwarding bug 2020-10-28 12:27:41 +01:00
drm_gem_cma_helper.c drm: prime: add common helper to check scatterlist contiguity 2020-09-10 08:17:48 +02:00
drm_gem_framebuffer_helper.c drm: remove _unlocked suffix in drm_gem_object_put_unlocked 2020-05-19 22:31:31 +01:00
drm_gem_shmem_helper.c drm/shmem-helpers: vunmap: Don't put pages for dma-buf 2021-03-17 17:06:19 +01:00
drm_gem_ttm_helper.c drm/ttm: merge offset and base in ttm_bus_placement 2020-09-08 10:43:30 +02:00
drm_gem_vram_helper.c drm/vram-helper: Fix use of top-down placement 2020-11-20 05:20:48 +10:00
drm_hashtab.c drm: drop use of drmP.h in drm/* 2019-05-27 18:07:03 +02:00
drm_hdcp.c drm: Fix HDCP failures when SRM fw is missing 2020-05-05 14:01:53 -04:00
drm_internal.h drm/dev: Remove drm_dev_init 2020-09-21 10:45:08 +02:00
drm_ioc32.c drm/compat: Clear bounce structures 2021-03-17 17:06:18 +01:00
drm_ioctl.c drm-misc-next for v5.9: 2020-06-24 15:45:51 +10:00
drm_irq.c drm: use drm_dev_has_vblank more 2020-05-29 12:58:11 +02:00
drm_kms_helper_common.c drm: fix module name in edid_firmware log message 2019-08-22 10:41:06 +03:00
drm_lease.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_legacy.h drm: make drm_legacy.h self-contained 2019-05-27 18:06:47 +02:00
drm_legacy_misc.c gpu/drm: fix a few kernel-doc "/**" mark warnings 2019-07-16 11:25:02 +02:00
drm_lock.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_managed.c drm/dev: Remove drm_dev_init 2020-09-21 10:45:08 +02:00
drm_memory.c drm: Include prototype for drm_need_swiotlb() 2019-09-30 20:16:28 +03:00
drm_mipi_dbi.c Linux 5.8 2020-08-11 11:58:31 +10:00
drm_mipi_dsi.c drm: mipi-dsi: Convert logging to drm_* functions. 2020-07-10 20:21:45 +02:00
drm_mm.c drm/mm: cleanup and improve next_hole_*_addr() 2020-06-23 15:46:40 +02:00
drm_mode_config.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_mode_object.c drm/modeset-lock: Take the modeset BKL for legacy drivers 2020-08-17 13:41:50 -04:00
drm_modes.c drm/modes: Switch to 64bit maths to avoid integer overflow 2021-03-04 11:38:27 +01:00
drm_modeset_helper.c drm: prepare for drmP.h removal from drm_modeset_helper.h 2019-02-07 21:48:28 +01:00
drm_modeset_lock.c docs conversion for v5.3-rc1 2019-07-16 12:21:41 -07:00
drm_of.c Linux 5.8 2020-08-11 11:58:31 +10:00
drm_panel.c drm/panel: Add helper for reading DT rotation 2020-08-16 17:12:18 +02:00
drm_panel_orientation_quirks.c drm: Added orientation quirk for ASUS tablet model T103HAF 2020-08-04 11:45:23 +02:00
drm_pci.c drm : Insert blank lines after declarations. 2020-07-02 15:26:00 +02:00
drm_plane.c Linux 5.9-rc2 2020-08-25 11:00:02 +02:00
drm_plane_helper.c drm: drop use of drmP.h in drm/* 2019-05-27 18:07:03 +02:00
drm_prime.c drm: kernel-doc: add description for a new function parameter 2020-10-27 11:21:04 +01:00
drm_print.c drm/print: convert debug category macros into an enum 2019-11-14 14:08:57 +02:00
drm_probe_helper.c Merge tag 'drm-intel-next-2020-07-15' of git://anongit.freedesktop.org/drm/drm-intel into drm-next 2020-07-31 14:42:37 +10:00
drm_property.c drm: limit to INT_MAX in create_blob ioctl 2019-12-04 19:44:13 -08:00
drm_rect.c drm/rect: update kerneldoc for drm_rect_clip_scaled() 2019-11-28 13:15:43 +01:00
drm_scatter.c gpu/drm: remove the powerpc hack in drm_legacy_sg_alloc 2020-06-02 10:59:11 -07:00
drm_scdc_helper.c drm: drop use of drmP.h in drm/* 2019-05-27 18:07:03 +02:00
drm_self_refresh_helper.c drm/atomic: fix self-refresh helpers crtc state dereference 2019-11-06 13:00:21 -05:00
drm_simple_kms_helper.c drm/simple-kms: Fix documentation for drm_simple_encoder_init() 2020-03-06 09:24:29 +01:00
drm_syncobj.c drm/syncobj: Fix use-after-free 2021-01-27 11:54:55 +01:00
drm_sysfs.c drm/connector: notify userspace on hotplug after register complete 2020-06-03 10:24:23 +02:00
drm_trace.h drm: Add high-precision time to vblank trace event 2019-09-03 09:46:18 +02:00
drm_trace_points.c drm: drop use of drmP.h in drm/* 2019-05-27 18:07:03 +02:00
drm_vblank.c drm/atomic-helper: Remove the timestamping constant update from drm_atomic_helper_update_legacy_modeset_state() 2020-09-14 22:37:31 +03:00
drm_vblank_work.c This tree adds the sched_set_fifo*() encapsulation APIs to remove 2020-08-06 11:55:43 -07:00
drm_vm.c drm-misc-next for v5.9: 2020-06-24 15:45:51 +10:00
drm_vma_manager.c drm: drop use of drmP.h in drm/* 2019-05-27 18:07:03 +02:00
drm_writeback.c drm/writeback: don't set fence->ops to default 2020-05-20 20:03:45 +02:00
Kconfig drm/radeon: fix AGP dependency 2021-03-30 14:31:51 +02:00
Makefile drm/imx: compile imx directory by default 2020-09-09 16:39:48 +02:00