drm/msm/adreno: fix userspace-triggered crash on a2xx-a4xx
In the Linux kernel, the following vulnerability has been resolved: drm/msm/adreno: fix userspace-triggered crash on a2xx-a4xx Before a5xx Adreno driver will not try fetching UBWC params (because those generations didn't support UBWC anyway), however it's still possible to query UBWC-related params from the userspace, triggering possible NULL pointer dereference. Check for UBWC config in adreno_get_param() and return sane defaults if there is none. Patchwork: https://patchwork.freedesktop.org/patch/717778/
02 / AFFECTED SOFTWARE
Affected packages
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: drm/msm/adreno: fix userspace-triggered crash on a2xx-a4xx Before a5xx Adreno driver will not try fetching UBWC params (because those generations didn't support UBWC anyway), however it's still possible to query UBWC-related params from the userspace, triggering possible NULL pointer dereference. Check for UBWC config in adreno_get_param() and return sane defaults if there is none. Patchwork: https://patchwork.freedesktop.org/patch/717778/
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/22fc33d9b67694b24e0deb3f08c622464338cecb
- https://git.kernel.org/stable/c/2b4abf879360ea00a9e2b46d2d15dcdbc0687eed
- https://git.kernel.org/stable/c/eea43d5ed45089705bc5d70971c39076962d5951
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64049.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-64049