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v4.14.103
twx-linux/drivers/gpu/drm
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Joonas Lahtinen 36c495e92a drm/i915: Prevent a race during I915_GEM_MMAP ioctl with WC set 
commit 2e7bd10e05 upstream.

Make sure the underlying VMA in the process address space is the
same as it was during vm_mmap to avoid applying WC to wrong VMA.

A more long-term solution would be to have vm_mmap_locked variant
in linux/mmap.h for when caller wants to hold mmap_sem for an
extended duration.

v2:
- Refactor the compare function

Fixes: 1816f92363 ("drm/i915: Support creation of unbound wc user mappings for objects")
Reported-by: Adam Zabrocki <adamza@microsoft.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: <stable@vger.kernel.org> # v4.0+
Cc: Akash Goel <akash.goel@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Adam Zabrocki <adamza@microsoft.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> #v1
Link: https://patchwork.freedesktop.org/patch/msgid/20190207085454.10598-1-joonas.lahtinen@linux.intel.com
(cherry picked from commit 5c4604e757)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-20 10:20:55 +01:00
..
amd
drm/amdgpu: update SMC firmware image for polaris10 variants
2018-12-21 14:13:07 +01:00
arc
…
arm
drm: mali-dp: Call drm_crtc_vblank_reset on device init
2018-10-20 09:48:51 +02:00
armada
drm/armada: fix irq handling
2018-08-24 13:09:14 +02:00
ast
drm/ast: Fix connector leak during driver unload
2018-12-21 14:13:16 +01:00
atmel-hlcdc
drm/atmel-hlcdc: check stride values in the first plane
2018-07-08 15:30:48 +02:00
bochs
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bridge
drm/bridge: tc358767: fix output H/V syncs
2019-02-20 10:20:49 +01:00
cirrus
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etnaviv
…
exynos
Revert "drm/exynos/decon5433: implement frame counter"
2018-11-27 16:10:48 +01:00
fsl-dcu
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gma500
drm: gma500: fix logic error
2018-12-08 13:03:35 +01:00
hisilicon
drm/hisilicon: hibmc: Do not carry error code in HiBMC framebuffer pointer
2018-11-21 09:24:03 +01:00
i2c
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i810
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i915
drm/i915: Prevent a race during I915_GEM_MMAP ioctl with WC set
2019-02-20 10:20:55 +01:00
imx
drm/imx: imx-ldb: check if channel is enabled before printing warning
2018-09-05 09:26:24 +02:00
lib
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mediatek
drm/mediatek: fix OF sibling-node lookup
2018-12-01 09:42:55 +01:00
meson
drm/meson: add support for 1080p25 mode
2018-12-17 09:28:51 +01:00
mga
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mgag200
…
msm
drm/msm: Fix error return checking
2018-12-21 14:13:14 +01:00
mxsfb
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nouveau
drm/nouveau/falcon: avoid touching registers if engine is off
2019-02-20 10:20:51 +01:00
omapdrm
drm/omap: fix memory barrier bug in DMM driver
2018-11-21 09:24:03 +01:00
panel
drm/panel: type promotion bug in s6e8aa0_read_mtp_id()
2018-09-26 08:38:13 +02:00
pl111
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qxl
drm/qxl: Call qxl_bo_unref outside atomic context
2018-07-08 15:30:48 +02:00
r128
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radeon
drm/radeon: fix mode_valid's return type
2018-08-03 07:50:34 +02:00
rcar-du
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rockchip
drm/rockchip: fix for mailbox read size
2019-02-12 19:45:58 +01:00
savage
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selftests
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shmobile
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sis
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sti
…
stm
…
sun4i
drm/sun4i: Fix releasing node when enumerating enpoints
2018-10-03 17:00:51 -07:00
tdfx
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tegra
drm/tegra: Fix comparison operator for buffer size
2018-08-24 13:09:14 +02:00
tilcdc
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tinydrm
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ttm
…
udl
drm: udl: Destroy framebuffer only if it was initialized
2018-09-29 03:06:05 -07:00
vc4
drm/vc4: ->x_scaling[1] should never be set to VC4_SCALING_NONE
2019-02-12 19:45:57 +01:00
vgem
drm/vgem: Fix vgem_init to get drm device available.
2019-02-12 19:45:56 +01:00
via
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virtio
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vmwgfx
drm/vmwgfx: Return error code from vmw_execbuf_copy_fence_user
2019-02-15 08:09:13 +01:00
zte
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ati_pcigart.c
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drm_agpsupport.c
…
drm_atomic_helper.c
drm: Clear state->acquire_ctx before leaving drm_atomic_helper_commit_duplicated_state()
2019-02-12 19:46:00 +01:00
drm_atomic.c
drm/atomic: Handling the case when setting old crtc for plane
2018-08-03 07:50:37 +02:00
drm_auth.c
drm: set is_master to 0 upon drm_new_set_master() failure
2018-12-08 13:03:37 +01:00
drm_blend.c
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drm_bridge.c
…
drm_bufs.c
drm/bufs: Fix Spectre v1 vulnerability
2019-02-12 19:45:56 +01:00
drm_cache.c
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drm_color_mgmt.c
…
drm_connector.c
…
drm_context.c
…
drm_crtc_helper_internal.h
…
drm_crtc_helper.c
…
drm_crtc_internal.h
…
drm_crtc.c
…
drm_debugfs_crc.c
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drm_debugfs.c
…
drm_dma.c
…
drm_dp_aux_dev.c
…
drm_dp_dual_mode_helper.c
…
drm_dp_helper.c
…
drm_dp_mst_topology.c
drm/dp_mst: Check if primary mstb is null
2018-11-21 09:24:16 +01:00
drm_drv.c
…
drm_dumb_buffers.c
…
drm_edid_load.c
…
drm_edid.c
drm/edid: Add 6 bpc quirk for BOE panel.
2018-11-27 16:10:46 +01:00
drm_encoder_slave.c
…
drm_encoder.c
…
drm_fb_cma_helper.c
…
drm_fb_helper.c
drm/fb-helper: Ignore the value of fb_var_screeninfo.pixclock
2019-01-23 08:09:51 +01:00
drm_file.c
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drm_flip_work.c
…
drm_fourcc.c
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drm_framebuffer.c
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drm_gem_cma_helper.c
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drm_gem_framebuffer_helper.c
…
drm_gem.c
…
drm_global.c
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drm_hashtab.c
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drm_info.c
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drm_internal.h
…
drm_ioc32.c
…
drm_ioctl.c
drm/ioctl: Fix Spectre v1 vulnerabilities
2018-12-29 13:39:11 +01:00
drm_irq.c
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drm_kms_helper_common.c
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drm_legacy.h
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drm_lock.c
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drm_memory.c
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drm_mipi_dsi.c
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drm_mm.c
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drm_mode_config.c
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drm_mode_object.c
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drm_modes.c
drm/modes: Prevent division by zero htotal
2019-02-15 08:09:12 +01:00
drm_modeset_helper.c
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drm_modeset_lock.c
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drm_of.c
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drm_panel.c
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drm_pci.c
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drm_plane_helper.c
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drm_plane.c
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drm_prime.c
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drm_print.c
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drm_probe_helper.c
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drm_property.c
drm: Use kvzalloc for allocating blob property memory
2018-07-11 16:29:16 +02:00
drm_rect.c
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drm_scatter.c
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drm_scdc_helper.c
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drm_simple_kms_helper.c
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drm_syncobj.c
drm/syncobj: Don't leak fences when WAIT_FOR_SUBMIT is set
2018-10-13 09:27:23 +02:00
drm_sysfs.c
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drm_trace_points.c
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drm_trace.h
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drm_vblank.c
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drm_vm.c
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drm_vma_manager.c
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Kconfig
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Makefile
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