ipvs: reject invalid states in connection template sync records

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-97596
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-25 11:17:10 UTC
Updated2026-09-25 11:17:10 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ipvs: reject invalid states in connection template sync records IPVS sync receivers validate protocol states before creating or updating a connection. For connection templates, however, they only log states outside the template state range and still store the value in the connection. A template can be returned by ordinary connection lookup. TCP and SCTP then use the invalid state as an index into their transition tables. Reject invalid template states in both sync protocol versions before looking up or modifying a connection. The version 1 path handles both IPv4 and IPv6 records.

Risk And Classification

EPSS: 0.002000000 probability, percentile 0.088120000 (date 2026-09-27)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 275411430f892407b885be1de2548b2e632892c3 fc10dc4511e6e2e2b4098ee115c8e5639471f23d git Not specified
CNA Linux Linux affected 275411430f892407b885be1de2548b2e632892c3 50c3f06222eafe9cca7ca51a0ef83311d7cab353 git Not specified
CNA Linux Linux affected 275411430f892407b885be1de2548b2e632892c3 0c61f7d8e18a978aec2a16d9acd5f682f1c72476 git Not specified
CNA Linux Linux affected 275411430f892407b885be1de2548b2e632892c3 74cb39735b6cd0aff4b5584158f09376fd97aadf git Not specified
CNA Linux Linux affected 4.19 Not specified
CNA Linux Linux unaffected 4.19 semver Not specified
CNA Linux Linux unaffected 6.12.111 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.53 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.7 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/74cb39735b6cd0aff4b5584158f09376fd97aadf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0c61f7d8e18a978aec2a16d9acd5f682f1c72476 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/fc10dc4511e6e2e2b4098ee115c8e5639471f23d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/50c3f06222eafe9cca7ca51a0ef83311d7cab353 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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