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  4. CVE 2026 80965 alsa serial u16550 check card index validity at
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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-80965

ALSA: serial-u16550: Check card index validity at probeCVE-2026-80965

Answer in brief

CVE-2026-80965 records a Unknown severity vulnerability in ALSA: serial-u16550: Check card index validity at probe. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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 Sep 11, 2026Updated Oct 19, 2026Source checked Oct 27, 2026First seen by HOL Sep 11, 2026Material review Oct 19, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
4 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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <fbf3fb097e66fc1874e54ecc46d600d9325480d6 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7555e83d7738e65dc83921e3c85bbdc081f08f2f || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6d6fdb24fe2eaf6174fc502284c6e1dc5f7242ba || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e0fb960b227fcdebe22e4f26c9486d60943c0424 || >=0 <6.12.109 || >=0 <6.18.50 || >=0 <7.2.4fbf3fb097e66fc1874e54ecc46d600d9325480d6, 7555e83d7738e65dc83921e3c85bbdc081f08f2f, 6d6fdb24fe2eaf6174fc502284c6e1dc5f7242ba, e0fb960b227fcdebe22e4f26c9486d60943c0424, 6.12.109, 6.18.50, 7.2.4
Linux/Linuxgeneric>=9caf6b5908e1e3b10478e9201ca1be809145253f <fbf3fb097e66fc1874e54ecc46d600d9325480d6 || >=9caf6b5908e1e3b10478e9201ca1be809145253f <7555e83d7738e65dc83921e3c85bbdc081f08f2f || >=9caf6b5908e1e3b10478e9201ca1be809145253f <6d6fdb24fe2eaf6174fc502284c6e1dc5f7242ba || >=9caf6b5908e1e3b10478e9201ca1be809145253f <e0fb960b227fcdebe22e4f26c9486d60943c0424fbf3fb097e66fc1874e54ecc46d600d9325480d6, 7555e83d7738e65dc83921e3c85bbdc081f08f2f, 6d6fdb24fe2eaf6174fc502284c6e1dc5f7242ba, e0fb960b227fcdebe22e4f26c9486d60943c0424
Linux/Linuxgeneric2.6.16Not reported
Linux/Linuxgeneric>=9caf6b5908e1e3b10478e9201ca1be809145253f <41a952304cc8a308748e3f58462c879f2a9c4340 || >=9caf6b5908e1e3b10478e9201ca1be809145253f <cc0f757d017f4271f137c77e130314bb23792347 || >=9caf6b5908e1e3b10478e9201ca1be809145253f <1cb30691dc893aafcbc1e211e94764014c0f5d12 || >=9caf6b5908e1e3b10478e9201ca1be809145253f <487ede9b648fc0eb15866f408c41aac2c57f85d5 || >=9caf6b5908e1e3b10478e9201ca1be809145253f <fbf3fb097e66fc1874e54ecc46d600d9325480d6 || >=9caf6b5908e1e3b10478e9201ca1be809145253f <7555e83d7738e65dc83921e3c85bbdc081f08f2f || >=9caf6b5908e1e3b10478e9201ca1be809145253f <6d6fdb24fe2eaf6174fc502284c6e1dc5f7242ba || >=9caf6b5908e1e3b10478e9201ca1be809145253f <e0fb960b227fcdebe22e4f26c9486d60943c042441a952304cc8a308748e3f58462c879f2a9c4340, cc0f757d017f4271f137c77e130314bb23792347, 1cb30691dc893aafcbc1e211e94764014c0f5d12, 487ede9b648fc0eb15866f408c41aac2c57f85d5, fbf3fb097e66fc1874e54ecc46d600d9325480d6, 7555e83d7738e65dc83921e3c85bbdc081f08f2f, 6d6fdb24fe2eaf6174fc502284c6e1dc5f7242ba, e0fb960b227fcdebe22e4f26c9486d60943c0424

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 fbf3fb097e66fc1874e54ecc46d600d9325480d6; Linux/Linux to fbf3fb097e66fc1874e54ecc46d600d9325480d6; Linux/Linux to 41a952304cc8a308748e3f58462c879f2a9c4340 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Sep 11, 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 11, 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: ALSA: serial-u16550: Check card index validity at probe serial-u16550 driver blindly trusts that the given devptr->id value is within the proper card index range at probe. It's OK for the devices the driver itself creates at the module probe time, but if the device is bound manually via sysfs interface, this could be -1 as "none", and this leads to OOB access for index[] and other parameters. Add a sanity check for the card index and warn/correct it if it's a value out of the range.

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 27, 2026
References
8 linked sources
Open source record