ipvs: do not propagate one-packet flag to synced conns (Linux Linux)

CVE-2026-80714
CRITICAL 9.8

At a glance

Source
NVD
EPSS
EPSS 0.48 % · percentile 41 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Received

Description

In the Linux kernel, the following vulnerability has been resolved: ipvs: do not propagate one-packet flag to synced conns Synced connections can be created before their destination exists. When the destination is later added, ip_vs_bind_dest() copies connection flags from the destination into cp->flags. IP_VS_CONN_F_ONE_PACKET connections are not synced. If a synced connection inherits IP_VS_CONN_F_ONE_PACKET while it is already hashed, expiry can treat it as a one-packet connection and skip unlinking the existing conn_tab node, leaving stale hash nodes pointing at a freed struct ip_vs_conn. Drop IP_VS_CONN_F_ONE_PACKET from destination flags when binding synced connections.

References

Scores

VersionScoreVectorScored by
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

European references

CERT-FR advisories

Affected products

ProductVersions
Linux · Linuxaffected 26ec037f9841e49cc5c615deb8e1e73e5beab2ca < 06d1d9b56ef8132fbf85006885eb43d9510b8b02 ; affected 26ec037f9841e49cc5c615deb8e1e73e5beab2ca < acbdc276091b308ca7794acb86e761f8203e2f59 ; affected 26ec037f9841e49cc5c615deb8e1e73e5beab2ca < 300348e3ba1521b003d59825f97e24f9a6859688 ; affected 26ec037f9841e49cc5c615deb8e1e73e5beab2ca < 44af98cc7d5ef8e730488d5df1eecd5deeaa5947 ; affected 26ec037f9841e49cc5c615deb8e1e73e5beab2ca < 4649e6faeecdc2d44bfa6ccbe405eef27e55d816 ; affected 26ec037f9841e49cc5c615deb8e1e73e5beab2ca < b5ee5b266f833601ac4817f6df0bc496fc376a28
Linux · Linuxaffected 2.6.36 ; unaffected 0 < 2.6.36 ; unaffected 5.10.265 ≤ 5.10.* ; unaffected 5.15.216 ≤ 5.15.* ; unaffected 6.1.183 ≤ 6.1.* ; unaffected 6.6.151 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD