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VulnerabilityPublished Updated

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

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · fixed in f4b64488f3deca63f7fbc7d7c3835b2e668003f9 : patch Linux kernel soon.

Data as of 26 Oct 2026, 15:59 UTC

Severity
High

Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD

EPSS
0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in f4b64488f3deca63f7fbc7d7c3835b2e668003f9, c72e81ee46bdd4c221114d6e9515e9b4647616d7, ab243f74ab4084ca5c8dec608cb5b0deb27db067 +6

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 25 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • >=6.6.134 <6.6.158
  • >=6.12.81 <6.12.111
  • >=6.18.22 <6.18.53
  • >=6.19.12 <6.20
Fixed in
  • f4b64488f3deca63f7fbc7d7c3835b2e668003f9
  • c72e81ee46bdd4c221114d6e9515e9b4647616d7
  • ab243f74ab4084ca5c8dec608cb5b0deb27db067
  • 5807a65f301b6c0e73a2dc03dd6f5e80a2861b72
  • 12deeade460d47031267256ba07add51cc7eabd0
  • 6.20
  • 6.18.53
  • 6.12.111
  • 6.6.158
LinuxLinuxAffected
  • =7.0
Fixed in–

AI-suggested

A fix is available and has been applied in Linux kernel versions 6.6.158, 6.12.111, 6.18.53, 6.20, and 7.0, among others. Users and administrators should upgrade to these fixed versions to mitigate the vulnerability. No additional mitigation steps are indicated.

Description

CVE-2026-98155 is a vulnerability in the Linux kernel's accel/qaic component involving a potential out-of-bounds read in the resp_worker() function. The flaw arises because a prior fix skipped bounds checking when decoding certain messages, which could lead to reading past allocated memory, infinite loops, or kernel panics if a malformed message is sent from the device. The issue affects specific Linux kernel versions and has been addressed by reusing existing bounds checking code within resp_worker().

References

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