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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-98669

iio: buffer: serialize buffer teardown with mode claimsCVE-2026-98669

Answer in brief

CVE-2026-98669 records a Unknown severity vulnerability in iio: buffer: serialize buffer teardown with mode claims. 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>=0a8565425afd8ba0e1a0ea73e21da119ee6dacea <89f3852a28fcf7bab599280cb082baa0675536db || >=0a8565425afd8ba0e1a0ea73e21da119ee6dacea <b466db9e68b4741af85f6c017e2bb0a2f025053f || >=0a8565425afd8ba0e1a0ea73e21da119ee6dacea <e63188d77e10c0951bf67da6c295f768fd1abf4b || >=0a8565425afd8ba0e1a0ea73e21da119ee6dacea <84bb0fc46ccf6a545b8fdf57cda83770186ed8dd || a9c471892d75847671a246619c2148578f22bbc6 || 7bca0af538a49dacb1470f233be0676bdc09605b || >=5.15.137 <5.16 || >=6.1.60 <6.289f3852a28fcf7bab599280cb082baa0675536db, b466db9e68b4741af85f6c017e2bb0a2f025053f, e63188d77e10c0951bf67da6c295f768fd1abf4b, 84bb0fc46ccf6a545b8fdf57cda83770186ed8dd, 5.16, 6.2
Linux/Linuxgeneric6.2Not reported
Linux/Linuxgeneric>=0a8565425afd8ba0e1a0ea73e21da119ee6dacea <6a728408ff522b749c2a3c7e68f44e861fa0dbfb || >=0a8565425afd8ba0e1a0ea73e21da119ee6dacea <89f3852a28fcf7bab599280cb082baa0675536db || >=0a8565425afd8ba0e1a0ea73e21da119ee6dacea <b466db9e68b4741af85f6c017e2bb0a2f025053f || >=0a8565425afd8ba0e1a0ea73e21da119ee6dacea <e63188d77e10c0951bf67da6c295f768fd1abf4b || >=0a8565425afd8ba0e1a0ea73e21da119ee6dacea <84bb0fc46ccf6a545b8fdf57cda83770186ed8dd || a9c471892d75847671a246619c2148578f22bbc6 || 7bca0af538a49dacb1470f233be0676bdc09605b || >=5.15.137 <5.16 || >=6.1.60 <6.26a728408ff522b749c2a3c7e68f44e861fa0dbfb, 89f3852a28fcf7bab599280cb082baa0675536db, b466db9e68b4741af85f6c017e2bb0a2f025053f, e63188d77e10c0951bf67da6c295f768fd1abf4b, 84bb0fc46ccf6a545b8fdf57cda83770186ed8dd, 5.16, 6.2

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 89f3852a28fcf7bab599280cb082baa0675536db; Linux/Linux to 6a728408ff522b749c2a3c7e68f44e861fa0dbfb 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: iio: buffer: serialize buffer teardown with mode claims Buffer-mode claims hold mlock to guarantee that the device remains in buffer mode until the claim is released. Normal buffer updates take info_exist_lock followed by mlock in iio_update_buffers(). However, iio_device_unregister() disables and deactivates all buffers without taking mlock. This can invalidate buffer state, including active_scan_mask, while a buffer-mode claim is held. Take mlock in iio_disable_all_buffers() so that unregister honors the mode-claim lifetime guarantee. The info_exist_lock -> mlock ordering matches iio_update_buffers().

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