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Back to active CVEs
High · CVSS 7.5CVE-2026-89897

media: cec: Serialize exclusive follower deliveryCVE-2026-89897

Answer in brief

CVE-2026-89897 records a High severity (CVSS 7.5) vulnerability in media: cec: Serialize exclusive follower delivery. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 16, 2026Updated Oct 19, 2026Source checked Oct 31, 2026First seen by HOL Sep 16, 2026Material review Oct 19, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 7.5
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=9881fe0ca187c213eb3a6a8e78e45ad4d1cec171 <efc829b4b937f98c4467bffe9243f756b7cfbf7f || >=9881fe0ca187c213eb3a6a8e78e45ad4d1cec171 <cac577854826950dda4d53569728b1da6c1425d5 || >=9881fe0ca187c213eb3a6a8e78e45ad4d1cec171 <4b532b271c91790b7ab661cd488a7ad36f5c4f6b || >=9881fe0ca187c213eb3a6a8e78e45ad4d1cec171 <271e57a936dcdbaecb4b1bd005d9a285bbe60ab4 || >=9881fe0ca187c213eb3a6a8e78e45ad4d1cec171 <df941e6851da17fc53c7f6af2bdcc7383d17babc || >=9881fe0ca187c213eb3a6a8e78e45ad4d1cec171 <5c62095acc2a952099688774513c4a637bcdb2b5 || >=9881fe0ca187c213eb3a6a8e78e45ad4d1cec171 <ae614f48712156fb0f55b207338d48d422c58bc0 || >=9881fe0ca187c213eb3a6a8e78e45ad4d1cec171 <1924d0788caa6c66fd320dd4704fae99487fd2c7efc829b4b937f98c4467bffe9243f756b7cfbf7f, cac577854826950dda4d53569728b1da6c1425d5, 4b532b271c91790b7ab661cd488a7ad36f5c4f6b, 271e57a936dcdbaecb4b1bd005d9a285bbe60ab4, df941e6851da17fc53c7f6af2bdcc7383d17babc, 5c62095acc2a952099688774513c4a637bcdb2b5, ae614f48712156fb0f55b207338d48d422c58bc0, 1924d0788caa6c66fd320dd4704fae99487fd2c7
Linux/Linuxgeneric4.8Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to efc829b4b937f98c4467bffe9243f756b7cfbf7f if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 16, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 19, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 16, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: media: cec: Serialize exclusive follower delivery cec_receive_notify() reads the exclusive follower pointer without the adapter lock. Serialize the no-follower check and message delivery against mode changes and release.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 31, 2026
References
8 linked sources
Open source record