batman-adv: avoid OGM aggregation when skb tailroom is insufficient (Linux Linux)

CVE-2026-31683
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.12 % · centile 2 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: batman-adv: avoid OGM aggregation when skb tailroom is insufficient When OGM aggregation state is toggled at runtime, an existing forwarded packet may have been allocated with only packet_len bytes, while a later packet can still be selected for aggregation. Appending in this case can hit skb_put overflow conditions. Reject aggregation when the target skb tailroom cannot accommodate the new packet. The caller then falls back to creating a new forward packet instead of appending.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < 67176c96f325837b0bb3e9538ca2eba414f447d8 ; affected c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < 0b10a8b355c3f71012ce89289ec2c2f5e3bfd6c1 ; affected c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < 6755347c5f9bdd44dee80f692208b056fcd40a52 ; affected c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < 1ada20331f2df2a942d6b83ae1f04a304b642e2a ; affected c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < 6e40ebb999c2c3d2fbb3cacb61f0384ee6e69075 ; affected c6c8fea29769d998d94fcec9b9f14d4b52b349d3 < 0e35db29fc5a97a8553f7c2d3a2ba730e46b1ee8
Linux · Linuxaffected 2.6.38 ; unaffected 0 < 2.6.38 ; unaffected 5.10.253 ≤ 5.10.* ; unaffected 5.15.203 ≤ 5.15.* ; unaffected 6.1.167 ≤ 6.1.* ; unaffected 6.6.130 ≤ 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