Maíra Canal 99cd9efefa drm/vc4: Protect madv read in vc4_gem_object_mmap() with madv_lock ...

[ Upstream commit 338c56050d8e892604da97f67bfa8cc4015a955f ]

The mmap callback reads bo->madv without holding madv_lock, racing with
concurrent DRM_IOCTL_VC4_GEM_MADVISE calls that modify the field under
the same lock. Add the missing locking to prevent the data race.

Fixes: b9f19259b8 ("drm/vc4: Add the DRM_IOCTL_VC4_GEM_MADVISE ioctl")
Reviewed-by: Melissa Wen <mwen@igalia.com>
Link: https://patch.msgid.link/20260330-vc4-misc-fixes-v1-4-92defc940a29@igalia.com
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Ulrich Hecht <uli@kernel.org>

2026-06-29 10:45:19 +02:00

..

drm

drm/vc4: Protect madv read in vc4_gem_object_mmap() with madv_lock

2026-06-29 10:45:19 +02:00

host1x

gpu: host1x: mipi: Update tegra_mipi_request() to be node based

2024-03-26 18:22:37 -04:00

ipu-v3

gpu: ipu-v3: common: Add of_node_put() for reference returned by of_graph_get_port_by_id()

2023-03-11 16:31:39 +01:00

vga

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Makefile

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