drm/i915/gem: Fix NULL deref in I915_CONTEXT_PARAM_SSEU
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
- —
- Fix status
- Partial Red Hat: 3 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: Fix NULL deref in I915_CONTEXT_PARAM_SSEU Setting context engine slot N into I915_ENGINE_CLASS_INVALID / I915_ENGINE_CLASS_INVALID_NONE and attempting to apply I915_CONTEXT_PARAM_SSEU to the same slot N will deref NULL. Fix that. Discovered using AI-assisted static analysis confirmed by Intel Product Security. (cherry picked from commit 36eda5b5c2d40da41cc0a5403c26986237cf9e87)
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.216, 6.1.183, 6.6.148, 6.12.101, 6.18.42, 7.1.6, 7.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 5 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux for NVIDIA 26
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-68243
- 2026-10-03 Alias added: GHSA-4mq5-r47h-v52v
- 2026-11-06 Affected versions changed · Red Hat
- 2026-11-06 CISA SSVC decision points changed
References
Other 7
- https://git.kernel.org/stable/c/97a4872ef927dee301d76085cb19f6e36d4a53a4
- https://git.kernel.org/stable/c/b226dee4ee1fff2909f79e8ad700b7082f8d3569
- https://git.kernel.org/stable/c/edd2edaca52ada833c341c8b264aaea9dd93369c
- https://git.kernel.org/stable/c/9923c223d38fcd9602f41cc31d480e5299d9a38e
- https://git.kernel.org/stable/c/726f27bca93e6c83b263542669132ee1d0eb693e
- https://git.kernel.org/stable/c/97f236379f06a5082d37c6a764edd56bb58a94cd
- https://git.kernel.org/stable/c/2b56757a9a7456825eb668fde92299e01c5e2721
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- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2026-68243 · CVE Program
- CVE-2026-68243 · NVD
- FIRST EPSS
- GHSA-4mq5-r47h-v52v · GitHub Advisory Database · CC BY 4.0
- CVE-2026-68243 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences