drm/imagination: take paired job reference
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
Affected products
23- osv-coords21 versionspkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP7pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP7pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-livepatch-SLE15-SP7-RT_Update_2&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-livepatch-SLE15-SP7_Update_2&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP7pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP7pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP7pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP7pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP7
< 6.4.0-150700.53.6.1+ 20 more
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 6.4.0-150700.20.6.1
- (no CPE)range: < 6.4.0-150700.53.6.1.150700.17.6.1
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 1-150700.1.5.1
- (no CPE)range: < 1-150700.15.3.1
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 6.4.0-150700.7.8.1
- (no CPE)range: < 6.4.0-150700.20.6.1
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 6.4.0-150700.7.8.1
- (no CPE)range: < 6.4.0-150700.20.6.1
- (no CPE)range: < 6.4.0-150700.53.6.1
- (no CPE)range: < 6.4.0-150700.7.8.1
- (no CPE)range: < 6.4.0-150700.53.6.1
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
3News mentions
0No linked articles in our index yet.