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Vulnerability record · CVE-2026-98155 · published 25 September 2026

CVE-2026-98155: Linux kernel out-of-bounds read vulnerability

Linux · Linux Kernel

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().

7.1 CVSS 3.1 High EPSS 0.12% · top 98.3% CWE-125 · Out-of-bounds read
7.1CVSS 3.1 base score
0.12%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
20 Oct 2026Last modified by NVD

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().

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-98155), CISA KEV, FIRST EPSS (scores of 2026-11-11). This page is refreshed as NVD updates the record.