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CVE Record

CVE-2026-64049: 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/

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel graphics driver flaw where local userspace can trigger a crash on systems using older Qualcomm Adreno GPU generations. The source describes a NULL pointer dereference, so the clearest business impact is local availability disruption, not confirmed data theft or remote compromise.

Executive priority

Treat this as a targeted availability risk until vendor severity is published. It is most urgent for fleets where untrusted local users or apps can interact with affected Adreno graphics devices.

Technical view

The drm/msm/adreno driver could fetch UBWC-related parameters even when pre-a5xx Adreno generations lack UBWC configuration. A userspace parameter query could therefore hit a NULL pointer dereference. The fix checks for missing UBWC config in adreno_get_param() and returns sane defaults.

Likely exposure

Exposure appears limited to Linux systems using the msm Adreno DRM driver with a2xx-a4xx class hardware or affected kernel builds. The affected version data in the source is sparse and should be verified against distribution kernel advisories.

Exploitation context

The source says the crash is userspace-triggered, implying local access is relevant. There is no KEV listing and no cited evidence of active exploitation, public exploit use, remote reachability, or privilege escalation.

Researcher notes

The source supports a userspace-triggered NULL pointer dereference in Linux drm/msm/adreno. It does not establish remote attack surface, exploit maturity, impact beyond crash, or complete affected version mapping. Validate using kernel and distro commit lineage.

Mitigation direction

  • Apply kernel updates containing the referenced stable fixes when available.
  • Check Linux distribution advisories for backported fixes and affected package versions.
  • Prioritize shared, kiosk, mobile, embedded, or multi-user systems with Adreno GPUs.
  • Restrict untrusted local users where kernel updates are not yet available.

Validation and detection

  • Inventory Linux systems using the msm Adreno DRM driver.
  • Map installed kernel versions to distribution advisories and stable fix commits.
  • Review crash logs for NULL dereferences in drm/msm/adreno paths.
  • Confirm patched kernels include the UBWC config check in adreno_get_param().
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
0ADP providers
4Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxa452510aad53f665eb422784ff525c4889aa246f, a452510aad53f665eb422784ff525c4889aa246f, a452510aad53f665eb422784ff525c4889aa246funaffected
LinuxLinux6.17, 0, 6.18.34, 7.0.11, 7.1affected
Weakness

CWE details

No CWE listed

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