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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-98696

USB: serial: fix driver deregistration orderCVE-2026-98696

Answer in brief

CVE-2026-98696 records a Unknown severity vulnerability in USB: serial: fix driver deregistration order. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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 Oct 18, 2026Updated Oct 21, 2026Source checked Oct 25, 2026First seen by HOL Oct 18, 2026Material review Oct 21, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. 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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=765e0ba62613fb90f09c1b5926750df0aa56f349 <9b085a06a0a411b0bcdf18b61c3ebf1be1c72ffe || >=765e0ba62613fb90f09c1b5926750df0aa56f349 <a1aa474768f69ea3a70da523f00f74c264cfa10e || >=765e0ba62613fb90f09c1b5926750df0aa56f349 <428d479a0d31460fbf5969ab262ccd673f1fac01 || >=765e0ba62613fb90f09c1b5926750df0aa56f349 <646e5b28b4fdbc1b828a2398d6ced2c1dd308a469b085a06a0a411b0bcdf18b61c3ebf1be1c72ffe, a1aa474768f69ea3a70da523f00f74c264cfa10e, 428d479a0d31460fbf5969ab262ccd673f1fac01, 646e5b28b4fdbc1b828a2398d6ced2c1dd308a46
Linux/Linuxgeneric3.4Not reported
Linux/Linuxgeneric>=765e0ba62613fb90f09c1b5926750df0aa56f349 <e7ad832b1144df19cbbaaa655625c6f984e85b9f || >=765e0ba62613fb90f09c1b5926750df0aa56f349 <9b085a06a0a411b0bcdf18b61c3ebf1be1c72ffe || >=765e0ba62613fb90f09c1b5926750df0aa56f349 <a1aa474768f69ea3a70da523f00f74c264cfa10e || >=765e0ba62613fb90f09c1b5926750df0aa56f349 <428d479a0d31460fbf5969ab262ccd673f1fac01 || >=765e0ba62613fb90f09c1b5926750df0aa56f349 <646e5b28b4fdbc1b828a2398d6ced2c1dd308a46e7ad832b1144df19cbbaaa655625c6f984e85b9f, 9b085a06a0a411b0bcdf18b61c3ebf1be1c72ffe, a1aa474768f69ea3a70da523f00f74c264cfa10e, 428d479a0d31460fbf5969ab262ccd673f1fac01, 646e5b28b4fdbc1b828a2398d6ced2c1dd308a46

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to 9b085a06a0a411b0bcdf18b61c3ebf1be1c72ffe; Linux/Linux to e7ad832b1144df19cbbaaa655625c6f984e85b9f if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 18, 2026

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

  2. Source modified

    Oct 21, 2026

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

  3. First seen by HOL

    Oct 18, 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
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: USB: serial: fix driver deregistration order USB serial driver modules register one driver for the USB bus and one or more drivers for the ports on the USB serial bus. When unloading a driver module, the USB driver must be deregistered before the USB serial bus drivers so that I/O is stopped before unbinding the ports to avoid use-after-free in completion handlers accessing port data. Note that the "new_id" attributes must first be removed to prevent new ids from being added and triggering a probe of the USB driver after it has been deregistered.

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 25, 2026
References
5 linked sources
Open source record