In the Linux kernel, the following vulnerability has been resolved:
drm/rockchip: vop2: fail cleanly if missing a primary plane for a video-port
Each window of a vop2 is usable by a specific set of video ports, so while
binding the vop2, we look through the list of available windows trying to
find one designated as primary-plane and usable by that specific port.
The code later wants to use drm_crtc_init_with_planes with that found
primary plane, but nothing has checked so far if a primary plane was
actually found.
For whatever reason, the rk3576 vp2 does not have a usable primary window
(if vp0 is also in use) which brought the issue to light and ended in a
null-pointer dereference further down.
As we expect a primary-plane to exist for a video-port, add a check at
the end of the window-iteration and fail probing if none was found.
Metrics
Affected Vendors & Products
References
History
Thu, 21 Aug 2025 12:45:00 +0000
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Linux
Linux linux Kernel |
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Vendors & Products |
Linux
Linux linux Kernel |
Wed, 20 Aug 2025 00:30:00 +0000
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References |
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Metrics |
threat_severity
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cvssV3_1
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Tue, 19 Aug 2025 17:15:00 +0000
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Description | In the Linux kernel, the following vulnerability has been resolved: drm/rockchip: vop2: fail cleanly if missing a primary plane for a video-port Each window of a vop2 is usable by a specific set of video ports, so while binding the vop2, we look through the list of available windows trying to find one designated as primary-plane and usable by that specific port. The code later wants to use drm_crtc_init_with_planes with that found primary plane, but nothing has checked so far if a primary plane was actually found. For whatever reason, the rk3576 vp2 does not have a usable primary window (if vp0 is also in use) which brought the issue to light and ended in a null-pointer dereference further down. As we expect a primary-plane to exist for a video-port, add a check at the end of the window-iteration and fail probing if none was found. | |
Title | drm/rockchip: vop2: fail cleanly if missing a primary plane for a video-port | |
References |
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-08-19T17:03:32.380Z
Reserved: 2025-04-16T04:51:24.028Z
Link: CVE-2025-38597

No data.

Status : Awaiting Analysis
Published: 2025-08-19T17:15:37.613
Modified: 2025-08-20T14:40:17.713
Link: CVE-2025-38597
