Medium [CVE-2026-68269] Linux kernel: Information disclosure due to missing Spectre mitigation
This medium-severity Red Hat Linux advisory covers CVE-2026-68269.
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Summary
In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: Add missing nospec on parallel submit slot Add missing Spectre mitigation for userspace controlled parallel submission slot.
Discovered using AI-assisted static analysis confirmed by Intel Product Security. (cherry picked from commit 15b9353deff3cf72331c387780de3cf9c316b643) This vulnerability allows for a side-channel attack, which could lead to the unauthorized disclosure of sensitive information.
Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N). Weakness: CWE-515.
Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux for NVIDIA 26; Red Hat OpenShift Container Platform 4 as not affected.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · medium-confidence parse· fetched 2 hours ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 2 hours ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 2 hours ago·verify at source
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