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
Product status
eaf01ee5ba28b97f96a3d3eec4c5fbfb37ee4cde (git) before c90b95e12eb88d23740e5ea2c43d71675d17ac8d
eaf01ee5ba28b97f96a3d3eec4c5fbfb37ee4cde (git) before b5a6f97a78e2fc008fd6503b7040cb7e1120b873
eaf01ee5ba28b97f96a3d3eec4c5fbfb37ee4cde (git) before 4ba2abe154ef68f9612eee9d6fbfe53a1736b064
6.8
Any version before 6.8
6.12.25 (semver)
6.14.4 (semver)
6.15 (original_commit_for_fix)
References
git.kernel.org/...c/c90b95e12eb88d23740e5ea2c43d71675d17ac8d
git.kernel.org/...c/b5a6f97a78e2fc008fd6503b7040cb7e1120b873
git.kernel.org/...c/4ba2abe154ef68f9612eee9d6fbfe53a1736b064