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  4. CVE 2026 23257 net liquidio fix off by one error in pf
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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2026-23257

net: liquidio: Fix off-by-one error in PF setup_nic_devices() cleanupCVE-2026-23257

Answer in brief

CVE-2026-23257 records a Unknown severity vulnerability in net: liquidio: Fix off-by-one error in PF setup_nic_devices() cleanup. 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 Mar 18, 2026Updated Nov 5, 2026Source checked Nov 5, 2026First seen by HOL Nov 5, 2026Material review Nov 5, 2026
Upstream Advisory

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Nov 5, 2026
References
7 linked sources
Open source record

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
2 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). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=f21fb3ed364bb83533c5efe19354e337ea9ecda9 <af38d9a5cb49fe9d0d282b44f17fdc1f3270d99d || >=f21fb3ed364bb83533c5efe19354e337ea9ecda9 <d86c58eb005eb99da402452f3db7a6e0eae32815 || >=f21fb3ed364bb83533c5efe19354e337ea9ecda9 <f1216b80c9040a904d2ad7c8cd24ca0ff1f36932 || >=f21fb3ed364bb83533c5efe19354e337ea9ecda9 <a0d2389c8cdc1f05de5eb8663bffe9ed05dca769 || >=f21fb3ed364bb83533c5efe19354e337ea9ecda9 <f86bd16280a0f88b538394e0565c56ce4756da99 || >=f21fb3ed364bb83533c5efe19354e337ea9ecda9 <293eaad0d6d6b2a37a458c7deb7be345349cd963 || >=f21fb3ed364bb83533c5efe19354e337ea9ecda9 <8558aef4e8a1a83049ab906d21d391093cfa7e7faf38d9a5cb49fe9d0d282b44f17fdc1f3270d99d, d86c58eb005eb99da402452f3db7a6e0eae32815, f1216b80c9040a904d2ad7c8cd24ca0ff1f36932, a0d2389c8cdc1f05de5eb8663bffe9ed05dca769, f86bd16280a0f88b538394e0565c56ce4756da99, 293eaad0d6d6b2a37a458c7deb7be345349cd963, 8558aef4e8a1a83049ab906d21d391093cfa7e7f
Linux/Linuxgeneric4.2Not 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 af38d9a5cb49fe9d0d282b44f17fdc1f3270d99d if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Mar 18, 2026

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

  2. Source modified

    Nov 5, 2026

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

  3. First seen by HOL

    Nov 5, 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
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: net: liquidio: Fix off-by-one error in PF setup_nic_devices() cleanup In setup_nic_devices(), the initialization loop jumps to the label setup_nic_dev_free on failure. The current cleanup loop while(i--) skip the failing index i, causing a memory leak. Fix this by changing the loop to iterate from the current index i down to 0. Also, decrement i in the devlink_alloc failure path to point to the last successfully allocated index. Compile tested only. Issue found using code review.

Quoted source text, attributed separately from HOL analysis.