---
id: CVE-2026-98155
title: |-
  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 t…
summary: |-
  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 t…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-125
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 2dd67966f39a2abf8ccb4865031c722e40e01b7f <
    5807a65f301b6c0e73a2dc03dd6f5e80a2861b72
  - >-
    Linux >= 08021f2d4a557d6491e3bcc288e96425f50aa3cf <
    f4b64488f3deca63f7fbc7d7c3835b2e668003f9
  - >-
    Linux >= f403094d9075d7c565a3d81002b781c325cb3c07 <
    12deeade460d47031267256ba07add51cc7eabd0
  - >-
    Linux >= 2feec5ae5df785658924ab6bd91280dc3926507c <
    c72e81ee46bdd4c221114d6e9515e9b4647616d7
  - >-
    Linux >= 2feec5ae5df785658924ab6bd91280dc3926507c <
    ab243f74ab4084ca5c8dec608cb5b0deb27db067
  - Linux ee0180e77e6c8482644569632065411de844c515
  - Linux >= 6.6.134 < 6.6.158
  - Linux >= 6.12.81 < 6.12.111
  - Linux >= 6.18.22 < 6.18.53
  - Linux >= 6.19.12 < 6.20
  - Linux 7.0
published: '2026-09-25'
updated: '2026-10-03'
sourceUpdated: '2026-10-03T11:18:37.400'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98155'
references:
  - url: 'https://git.kernel.org/stable/c/12deeade460d47031267256ba07add51cc7eabd0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5807a65f301b6c0e73a2dc03dd6f5e80a2861b72'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ab243f74ab4084ca5c8dec608cb5b0deb27db067'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/c72e81ee46bdd4c221114d6e9515e9b4647616d7'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f4b64488f3deca63f7fbc7d7c3835b2e668003f9'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98155.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-98155'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2541368'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-98155'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-98155'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98155.mbox
tags:
  - nvd
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00117
epssPercentile: 0.01646
cvssSource: vendor
ingestedAt: '2026-09-25T11:06:38.805Z'
---

## Overview

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().

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98155.json)