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Unrated severityNVD Advisory· Published May 1, 2025· Updated May 26, 2025

drm/imagination: take paired job reference

CVE-2025-37763

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/imagination: take paired job reference

For paired jobs, have the fragment job take a reference on the geometry job, so that the geometry job cannot be freed until the fragment job has finished with it.

The geometry job structure is accessed when the fragment job is being prepared by the GPU scheduler. Taking the reference prevents the geometry job being freed until the fragment job no longer requires it.

Fixes a use after free bug detected by KASAN:

[ 124.256386] BUG: KASAN: slab-use-after-free in pvr_queue_prepare_job+0x108/0x868 [powervr] [ 124.264893] Read of size 1 at addr ffff0000084cb960 by task kworker/u16:4/63

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Affected products

23

Patches

Vulnerability mechanics

References

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