net: pfcp: allocate per-cpu tstats for PFCP netdevs

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74286
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:22:28 UTC
Updated2026-08-15 06:22:28 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: net: pfcp: allocate per-cpu tstats for PFCP netdevs PFCP uses dev_get_tstats64() as its ndo_get_stats64 callback, but pfcp_link_setup() does not request NETDEV_PCPU_STAT_TSTATS. The net core therefore leaves dev->tstats NULL for PFCP devices. Creating a PFCP rtnetlink device can immediately ask the new netdev for stats while building the RTM_NEWLINK notification. That reaches dev_get_tstats64() and dereferences the NULL dev->tstats pointer. Set pcpu_stat_type to NETDEV_PCPU_STAT_TSTATS during PFCP link setup so the net core allocates the storage expected by dev_get_tstats64().

Risk And Classification

EPSS: 0.001680000 probability, percentile 0.064520000 (date 2026-08-15)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 76c8764ef36a5d37ea2e551bda28ac7f028383ba 56b4ad500fd1282ef04db3c4beae5b54ab093a53 git Not specified
CNA Linux Linux affected 76c8764ef36a5d37ea2e551bda28ac7f028383ba 51a1d9836acc76a1bd16170b2f4b35f11036593f git Not specified
CNA Linux Linux affected 76c8764ef36a5d37ea2e551bda28ac7f028383ba 67e4b283de36d9eebf95acdea5d6674b6ef4b2f4 git Not specified
CNA Linux Linux affected 76c8764ef36a5d37ea2e551bda28ac7f028383ba 24041543da8cd84eb5d8ae738c534372fff54820 git Not specified
CNA Linux Linux affected 6.10 Not specified
CNA Linux Linux unaffected 6.10 semver Not specified
CNA Linux Linux unaffected 6.12.97 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/24041543da8cd84eb5d8ae738c534372fff54820 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/67e4b283de36d9eebf95acdea5d6674b6ef4b2f4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/56b4ad500fd1282ef04db3c4beae5b54ab093a53 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/51a1d9836acc76a1bd16170b2f4b35f11036593f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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