Bug 2516468 (CVE-2026-72386)

Summary: CVE-2026-72386 kernel: drm/panthor: Fix a leak when a group is evicted before the tiler OOM is serviced
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Doc Text:
A flaw was found in the `drm/panthor` component of the Linux kernel. This vulnerability occurs when a group is evicted before the tiler Out-Of-Memory (OOM) service can process it, leading to a resource leak. An attacker could potentially exploit this to cause resource exhaustion, resulting in a Denial of Service (DoS).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-08-15 06:14:08 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/panthor: Fix a leak when a group is evicted before the tiler OOM is serviced

A group ref is tied to the pending tiler_oom_work, so we need to release
it if the cancel was effective.
Comment 1 gkamathe 2026-08-18 12:19:25 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026081518-CVE-2026-72386-30a9@gregkh/T