Bug 2513162 (CVE-2026-68244)

Summary: CVE-2026-68244 kernel: drm/i915/gem: Do not leak siblings[] on proto context error
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: akhatavk, aos-team-art-private, asdas, dpaolell, jdelft, jupierce, lgarciaa, mbiarnes, ppalepu, ppostler, prdhamdh, rhel-process-autobot, sghai, sidsharm, suppawar, vlaad, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in the Linux kernel. Specifically, within the `drm/i915/gem` module, a memory leak occurs during context creation. This happens when an error occurs while processing user extensions after a successful BALANCE/PARALLEL_SUBMIT extension. An attacker could potentially exploit this to cause resource exhaustion, leading to a Denial of Service (DoS).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description OSIDB Bzimport 2026-08-10 12:22:39 UTC
In the Linux kernel, the following vulnerability has been resolved:

drm/i915/gem: Do not leak siblings[] on proto context error

After a successful BALANCE/PARALLEL_SUBMIT extension on context
creation, error during processing of next user extension leaks
the siblings[] array. Fix that.

Discovered using AI-assisted static analysis confirmed by
Intel Product Security.

(cherry picked from commit aa65e0a4b51b3b54b53e4142aaa2d997aa1061ff)