accel/ivpu: Validate firmware log buffer metadata
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 1 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: accel/ivpu: Validate firmware log buffer metadata The tracing log headers parsed by fw_log_print_buffer() reside in DMA-shared BOs that the NPU firmware can write to. fw_log_from_bo() validated log->header_size and log->size, but fw_log_print_buffer() re-read those same fields from shared memory afterwards, allowing a TOCTOU where firmware changes them between the check and the use, and making the host dereference out-of-bounds addresses while printing logs. Snapshot the validated values once with READ_ONCE() and pass them down explicitly in a new struct ivpu_fw_log_desc instead of re-reading them from the shared struct.
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 6.6.160, 6.12.111, 6.18.53, 7.2.7, 7.3
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 |
Not affected: 6 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 5
Timeline
- 2026-10-02 Threatist record created from CVE-2026-97916
- 2026-10-03 Alias added: GHSA-9698-pw26-h6mc
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-21 Fix available: Linux/Linux@07d4190d75021c38b7994045179aa29131634d4f, Linux/[email protected] · CNA
- 2026-10-21 1 new reference · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 5
- https://git.kernel.org/stable/c/07d4190d75021c38b7994045179aa29131634d4f
- https://git.kernel.org/stable/c/8ec3d6972f1440fae6c8dadd1859892775208759
- https://git.kernel.org/stable/c/40868f80a89199630b03d4457876f9a1feba0660
- https://git.kernel.org/stable/c/b1555f63ee1a680f280bc18e8dac416f250e2ec3
- https://git.kernel.org/stable/c/0724afc55c77c36c7feb9a7264b02aa7593c5c2d
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Sources
- CVE-2026-97916 · CVE Program
- CVE-2026-97916 · NVD
- FIRST EPSS
- GHSA-9698-pw26-h6mc · GitHub Advisory Database · CC BY 4.0
- CVE-2026-97916 · 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