High 7.1Published Sep 25, 2026

CVE-2026-98155accel/qaic: Address potential out-of-bounds read in resp_worker()

Updated under an hour ago (Oct 26, 2026, 6:30 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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().

CVSS: 7.1 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 2dd67966f39a2abf8ccb4865031c722e40e01b7f before 5807a65f301b6c0e73a2dc03dd6f5e80a2861b72; from 08021f2d4a557d6491e3bcc288e96425f50aa3cf before f4b64488f3deca63f7fbc7d7c3835b2e668003f9; from f403094d9075d7c565a3d81002b781c325cb3c07 before 12deeade460d47031267256ba07add51cc7eabd0; from 2feec5ae5df785658924ab6bd91280dc3926507c before c72e81ee46bdd4c221114d6e9515e9b4647616d7; from 2feec5ae5df785658924ab6bd91280dc3926507c before ab243f74ab4084ca5c8dec608cb5b0deb27db067; ee0180e77e6c8482644569632065411de844c515; from 6.6.134 before 6.6.158; from 6.12.81 before 6.12.111; and 2 more ranges	CNA record
linux linux_kernel linux:linux_kernel	from 6.6.134 before 6.6.158; from 6.12.81 before 6.12.111; from 6.18.22 before 6.18.53; from 6.19.12 before 6.20; 7.0; 7.0; 7.0; 7.0; and 4 more ranges	NVD

References

References

https://git.kernel.org/stable/c/5807a65f301b6c0e73a2dc03dd6f5e80a2861b72	patch
https://git.kernel.org/stable/c/f4b64488f3deca63f7fbc7d7c3835b2e668003f9	patch
https://git.kernel.org/stable/c/12deeade460d47031267256ba07add51cc7eabd0	patch
https://git.kernel.org/stable/c/c72e81ee46bdd4c221114d6e9515e9b4647616d7	patch
https://git.kernel.org/stable/c/ab243f74ab4084ca5c8dec608cb5b0deb27db067	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.