net: ethernet: cortina: Make RX SKB per-port (Linux Linux)

CVE-2026-64056
CRITICAL 9.8

At a glance

Source
NVD
EPSS
EPSS 0.55 % · percentile 46 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Make RX SKB per-port The SKB used to assemble packets from fragments in gmac_rx() is static local, but the Gemini has two ethernet ports, meaning there can be races between the ports on a bad day if a device is using both. Make the RX SKB a per-port variable and carry it over between invocations in the port struct instead. Zero the pointer once we call napi_gro_frags(), on error (after calling napi_free_frags()) or if the port is stopped. Zero it in some place where not strictly necessary just to emphasize what is going on. This was found by Sashiko during normal patch review.

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 configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 < 27856d533eca3804008695f61c1e4d5ff984196b ; affected 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 < b6b22824b30e48ce1df3a2e80990f4b8505deb50 ; affected 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 < 6bba24e9ebe6f1c0b356cd471e36bdc7fa434897 ; affected 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 < 3b249988d774dacf13b203817e971934a42243c4 ; affected 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 < 72158ea185b27afae163949b0e86164cb6b64e55 ; affected 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88 < cfd62907f3cdbc3b6da8f49ba907c0390018fe5e
Linux · Linuxaffected 4.16 ; unaffected 0 < 4.16 ; unaffected 5.10.258 ≤ 5.10.* ; unaffected 5.15.209 ≤ 5.15.* ; unaffected 6.1.175 ≤ 6.1.* ; unaffected 6.6.142 ≤ 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