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  4. CVE 2026 45917 ipvs do not keep destdst if dev is going down
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Back to active CVEs
Medium · CVSS 5.5CVE-2026-45917

ipvs: do not keep dest_dst if dev is going downCVE-2026-45917

Answer in brief

CVE-2026-45917 records a Medium severity (CVSS 5.5) vulnerability in ipvs: do not keep dest_dst if dev is going down. 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 May 27, 2026Updated Oct 30, 2026Source checked Nov 3, 2026First seen by HOL Jun 24, 2026Material review Oct 30, 2026
Upstream Advisory

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
NVD-CWE-noinfo
Source
CVE List V5
Source checked
Nov 3, 2026
References
6 linked sources
Open source record

Key facts

Risk
Medium · CVSS 5.5
Exploitation
Not marked as known exploited
Affected software
6 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 5.5. 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), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:linux:linux_kernel:2.6.39:-:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric2.6.39Not reported
Linux/Linuxgeneric>=7a4f0761fce32ff4918a7c23b08db564ad33092d <64af43033503458c46023e56d6ae7bb0f824b55f || >=7a4f0761fce32ff4918a7c23b08db564ad33092d <bae53b3baf2ff2f45f9205c438818fc055601a54 || >=7a4f0761fce32ff4918a7c23b08db564ad33092d <024eb0bd19f507e6e7f0c7a7e5506d66b5dc1d3e || >=7a4f0761fce32ff4918a7c23b08db564ad33092d <8fde939b0206afc1d5846217a01a16b9bc8c789664af43033503458c46023e56d6ae7bb0f824b55f, bae53b3baf2ff2f45f9205c438818fc055601a54, 024eb0bd19f507e6e7f0c7a7e5506d66b5dc1d3e, 8fde939b0206afc1d5846217a01a16b9bc8c7896
Linux/Linuxgeneric>=7a4f0761fce32ff4918a7c23b08db564ad33092d <11d35b11013442576f35fd9e8a8fc16155101906 || >=7a4f0761fce32ff4918a7c23b08db564ad33092d <64af43033503458c46023e56d6ae7bb0f824b55f || >=7a4f0761fce32ff4918a7c23b08db564ad33092d <bae53b3baf2ff2f45f9205c438818fc055601a54 || >=7a4f0761fce32ff4918a7c23b08db564ad33092d <024eb0bd19f507e6e7f0c7a7e5506d66b5dc1d3e || >=7a4f0761fce32ff4918a7c23b08db564ad33092d <8fde939b0206afc1d5846217a01a16b9bc8c789611d35b11013442576f35fd9e8a8fc16155101906, 64af43033503458c46023e56d6ae7bb0f824b55f, bae53b3baf2ff2f45f9205c438818fc055601a54, 024eb0bd19f507e6e7f0c7a7e5506d66b5dc1d3e, 8fde939b0206afc1d5846217a01a16b9bc8c7896
Linux/Linuxgeneric>=7a4f0761fce32ff4918a7c23b08db564ad33092d <0b60fb44247eab81e7a9490c38ca62c7120eec75 || >=7a4f0761fce32ff4918a7c23b08db564ad33092d <11d35b11013442576f35fd9e8a8fc16155101906 || >=7a4f0761fce32ff4918a7c23b08db564ad33092d <64af43033503458c46023e56d6ae7bb0f824b55f || >=7a4f0761fce32ff4918a7c23b08db564ad33092d <bae53b3baf2ff2f45f9205c438818fc055601a54 || >=7a4f0761fce32ff4918a7c23b08db564ad33092d <024eb0bd19f507e6e7f0c7a7e5506d66b5dc1d3e || >=7a4f0761fce32ff4918a7c23b08db564ad33092d <8fde939b0206afc1d5846217a01a16b9bc8c78960b60fb44247eab81e7a9490c38ca62c7120eec75, 11d35b11013442576f35fd9e8a8fc16155101906, 64af43033503458c46023e56d6ae7bb0f824b55f, bae53b3baf2ff2f45f9205c438818fc055601a54, 024eb0bd19f507e6e7f0c7a7e5506d66b5dc1d3e, 8fde939b0206afc1d5846217a01a16b9bc8c7896

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 64af43033503458c46023e56d6ae7bb0f824b55f; Linux/Linux to 11d35b11013442576f35fd9e8a8fc16155101906; Linux/Linux to 0b60fb44247eab81e7a9490c38ca62c7120eec75 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    May 27, 2026

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

  2. Source modified

    Oct 30, 2026

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

  3. First seen by HOL

    Jun 24, 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
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: ipvs: do not keep dest_dst if dev is going down There is race between the netdev notifier ip_vs_dst_event() and the code that caches dst with dev that is going down. As the FIB can be notified for the closed device after our handler finishes, it is possible valid route to be returned and cached resuling in a leaked dev reference until the dest is not removed. To prevent new dest_dst to be attached to dest just after the handler dropped the old one, add a netif_running() check to make sure the notifier handler is not currently running for device that is closing.

Quoted source text, attributed separately from HOL analysis.