CVE-2026-97916accel/ivpu: Validate firmware log buffer metadata
- —Not scoredno CVSS score yet
- 0.20%Exploitation in 30 daysEPSS · top 90% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
Published
- 26 days later
· 26 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.20% · top 90% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected d4e4257afa6ed5205eda993180401fc2c20e4b60 – < 07d4190d75021c38b7994045179aa29131634d4f
- affected d4e4257afa6ed5205eda993180401fc2c20e4b60 – < 8ec3d6972f1440fae6c8dadd1859892775208759
- affected d4e4257afa6ed5205eda993180401fc2c20e4b60 – < 40868f80a89199630b03d4457876f9a1feba0660
- affected d4e4257afa6ed5205eda993180401fc2c20e4b60 – < b1555f63ee1a680f280bc18e8dac416f250e2ec3
- affected d4e4257afa6ed5205eda993180401fc2c20e4b60 – < 0724afc55c77c36c7feb9a7264b02aa7593c5c2d
- affected 6.6
- unaffected < 6.6
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.111 – ≤ 6.12.*
- unaffected 6.18.53 – ≤ 6.18.*
- unaffected 7.2.7 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References5
- https://git.kernel.org/stable/c/07d4190d75021c38b7994045179aa29131634d4f (opens in a new tab)
- https://git.kernel.org/stable/c/8ec3d6972f1440fae6c8dadd1859892775208759 (opens in a new tab)
- https://git.kernel.org/stable/c/40868f80a89199630b03d4457876f9a1feba0660 (opens in a new tab)
- https://git.kernel.org/stable/c/b1555f63ee1a680f280bc18e8dac416f250e2ec3 (opens in a new tab)
- https://git.kernel.org/stable/c/0724afc55c77c36c7feb9a7264b02aa7593c5c2d (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-86770 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-97916)Record last updated .