Use-After-Free in Arm Valhall / 5th Gen GPU Kernel Driver
CVE-2025-6349 is a use-after-free vulnerability in Arm Ltd's Valhall GPU Kernel Driver and Arm 5th Gen GPU Architecture Kernel Driver. According to the provided content, a local non-privileged user process can perform improper GPU memory processing operations and gain access to memory that has already been freed. The issue affects driver versions from r53p0 through r54p1. The flaw is in the kernel GPU driver’s handling of GPU memory lifecycle/state, where freed memory can remain reachable through subsequent processing operations, creating a stale reference condition in kernel-space driver logic.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
Recent activity
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
High-severity vulnerability affecting Arm Mali GPU components (GPU driver class issues such as memory corruption/information disclosure/local privilege escalation are mentioned generally).
High-severity ARM Mali GPU driver vulnerability fixed via vendor updates; could undermine graphics isolation and be chained with other issues.
The version that knows your environment.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.