net: pull headers in qdisc_pkt_len_segs_init() (Linux Linux)

CVE-2026-53091
HIGH 8.4

En bref

Source
NVD
EPSS
EPSS 0.14 % · centile 3 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: net: pull headers in qdisc_pkt_len_segs_init() Most ndo_start_xmit() methods expects headers of gso packets to be already in skb->head. net/core/tso.c users are particularly at risk, because tso_build_hdr() does a memcpy(hdr, skb->data, hdr_len); qdisc_pkt_len_segs_init() already does a dissection of gso packets. Use pskb_may_pull() instead of skb_header_pointer() to make sure drivers do not have to reimplement this. Some malicious packets could be fed, detect them so that we can drop them sooner with a new SKB_DROP_REASON_SKB_BAD_GSO drop_reason.

Faiblesses (CWE)

  • CWE-131 — Calcul incorrect de la taille d'un tampon

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 8.4CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:HLinux
CVSS 3.1HIGH 7.0CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Hredhat-SADP
CVSS 3.1HIGH 8.4CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1HIGH 7.0CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected e876f208af18b074f800656e4d1b99da75b2135f < 5895cfc76924a629c6eaa5e5f049de642860045f ; affected e876f208af18b074f800656e4d1b99da75b2135f < 7564dc804d8289d2e5c6edb8173754051b71bff4 ; affected e876f208af18b074f800656e4d1b99da75b2135f < 9d4f5c68f5ad4ab425f3ce1500c97c9f9743999a ; affected e876f208af18b074f800656e4d1b99da75b2135f < 7fb4c19670110f052c04e1ec1d2b953b9f4f57e4
Linux · Linuxaffected 3.16 ; unaffected 0 < 3.16 ; unaffected 6.6.160 ≤ 6.6.* ; unaffected 6.12.114 ≤ 6.12.* ; unaffected 7.0.10 ≤ 7.0.* ; unaffected 7.1 ≤ *

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