netfilter: handle unreadable frags (Linux Linux)

CVE-2026-64414
HIGH 7.5

En bref

Source
NVD
EPSS
EPSS 0.44 % · centile 38 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: handle unreadable frags sashiko reports: When an skb with unreadable fragments (such as from devmem TCP, where skb_frags_readable(skb) returns false) is processed by the u32 module, skb_copy_bits() will safely return a negative error code [..] xt_u32: bail out with hotdrop in this case. gather_frags: return -1, just as if we had no fragment header. nfnetlink_queue: restrict to the linear part. nfnetlink_log: restrict to the linear part. v2: - skb_zerocopy helpers don't copy readable flag, i.e. nfnetlink_queue is broken too xt_u32 shouldn't return true if hotdrop was set.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HLinux
CVSS 3.1HIGH 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 65249feb6b3df9e17bab5911ee56fa7b0971e231 < 3b13e7635795394705920cca1e1db7e4ca2e334b ; affected 65249feb6b3df9e17bab5911ee56fa7b0971e231 < fc5bfe63bacf8a3ae307b62b34206406ca733354 ; affected 65249feb6b3df9e17bab5911ee56fa7b0971e231 < 57056be3ec12e7d9ecd20a60d4060f510e4f284c ; affected 65249feb6b3df9e17bab5911ee56fa7b0971e231 < da5b58478a9c1b85608c9e40a3b8432d071b409e
Linux · Linuxaffected 6.12 ; unaffected 0 < 6.12 ; unaffected 6.12.96 ≤ 6.12.* ; unaffected 6.18.39 ≤ 6.18.* ; unaffected 7.1.4 ≤ 7.1.* ; unaffected 7.2 ≤ *

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