CVE-2026-98155accel/qaic: Address potential out-of-bounds read in resp_worker()
- 7.1HighCVSS base score
- 0.12%Exploitation in 30 daysEPSS · top 98% 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/qaic: Address potential out-of-bounds read in resp_worker() Although 'commit 2feec5ae5df7 ("accel/qaic: Handle DBC deactivation if the owner went away")' fixes the scenario it was intended for by walking the message and only decoding QAIC_TRANS_DEACTIVATE_FROM_DEV, if present, it skipped over the bounds checking code that is included in decode_message(). This could lead to issues such as reading past the slab allocation's end, infinite loops or kernel panics. For those issues to happen, a malformed wire message is needed to be sent from the device. Instead of duplicating the bounds checking code already present in decode_message(), use the function inside resp_worker().
Timeline
ID reserved
By Linux
Published
- 24 days later
· 24 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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | High7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.12% · top 98% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Affected products
- affected 2dd67966f39a2abf8ccb4865031c722e40e01b7f – < 5807a65f301b6c0e73a2dc03dd6f5e80a2861b72
- affected 08021f2d4a557d6491e3bcc288e96425f50aa3cf – < f4b64488f3deca63f7fbc7d7c3835b2e668003f9
- affected f403094d9075d7c565a3d81002b781c325cb3c07 – < 12deeade460d47031267256ba07add51cc7eabd0
- affected 2feec5ae5df785658924ab6bd91280dc3926507c – < c72e81ee46bdd4c221114d6e9515e9b4647616d7
- affected 2feec5ae5df785658924ab6bd91280dc3926507c – < ab243f74ab4084ca5c8dec608cb5b0deb27db067
- affected ee0180e77e6c8482644569632065411de844c515
- affected 6.6.134 – < 6.6.158
- affected 6.12.81 – < 6.12.111
- affected 6.18.22 – < 6.18.53
- affected 6.19.12 – < 6.20
- affected 7.0
- unaffected < 7.0
- unaffected 6.6.158 – ≤ 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/5807a65f301b6c0e73a2dc03dd6f5e80a2861b72 (opens in a new tab)
- https://git.kernel.org/stable/c/f4b64488f3deca63f7fbc7d7c3835b2e668003f9 (opens in a new tab)
- https://git.kernel.org/stable/c/12deeade460d47031267256ba07add51cc7eabd0 (opens in a new tab)
- https://git.kernel.org/stable/c/c72e81ee46bdd4c221114d6e9515e9b4647616d7 (opens in a new tab)
- https://git.kernel.org/stable/c/ab243f74ab4084ca5c8dec608cb5b0deb27db067 (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-2026-86986 (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-2026-98155)Record last updated .