drm/amdkfd: Check bounds in allocate_event_notification_slot
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 5 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/amdkfd: Check bounds in allocate_event_notification_slot The valid event ids go from 0 to KFD_SIGNAL_EVENT_LIMIT allocate_event_notification_slot has an option to specify an event id to allocate at, used by CRIU. We weren't checking the bounds on that value. Check them. v2: Lower bounds check is unecessary because of idr_alloc already rejecting negative numbers. Upper bounds check should be KFD_SIGNAL_EVENT_LIMIT since the signal mode mappings might not yet exist (cherry picked from commit 6853f1f6cbbeb3f53ebbbd7286536aeb2c5d5f50)
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 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 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | 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 |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-68259
- 2026-10-03 Alias added: GHSA-3gmf-h2jg-hwv2
References
Other 6
- https://git.kernel.org/stable/c/6884fc142b17f456caac50c14505f509bfbcd012
- https://git.kernel.org/stable/c/85eedff5f0c4aba5a66bc37a1bd6bcecd0d77b53
- https://git.kernel.org/stable/c/4622214f0542f64b02c250db0f9c677eeb032d9b
- https://git.kernel.org/stable/c/50319efb865f72db45f191c8709511746d58ee0a
- https://git.kernel.org/stable/c/abeeb1947d81610c65349db4d89c6151f270e136
- https://git.kernel.org/stable/c/bb52249fbbe948875155ccd45cd8d74bf4ae747b
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Sources
- CVE-2026-68259 · CVE Program
- CVE-2026-68259 · NVD
- FIRST EPSS
- GHSA-3gmf-h2jg-hwv2 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-68259 · Red Hat security data · CC BY 4.0
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