netfilter: ebtables: zero chainstack array (Linux Linux)

CVE-2026-64413
HIGH 7.0

En bref

Source
NVD
EPSS
EPSS 0.13 % · centile 2 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: ebtables: zero chainstack array sashiko reports: looking at ebtables table translation, could a sparse cpu_possible_mask lead to an uninitialized pointer free? If cpu_possible_mask is sparse (for example, CPU 0 and CPU 2 are possible, but CPU 1 is not), the allocation loop skips CPU 1. If vmalloc_node() fails at CPU 2, the cleanup loop will blindly decrement and call vfree() on newinfo->chainstack[1]. Not a real-world bug, such allocation isn't expected to fail in the first place.

Faiblesses (CWE)

  • CWE-457 — Use of Uninitialized Variable
  • CWE-908 — Utilisation d'une ressource non initialisée

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.0CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.0CVSS:3.1/AV:L/AC:H/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 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2ade612967e2cdfb9290ebcb773f302c82f311fa ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 42bef500d07b5769d916e9122a3e3fa3fd2245ef ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < fc7f105451044501a50cfd530cfa3b472c54acbc ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 9e6c5169db423e51dcc66a73fd15409c0d38e088 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 29bf41a9b59aff9f6197df58641a00037d567ca8 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 9f74d28e903fa4fdf82f870d0aeadddc8196e41c
Linux · Linuxaffected 2.6.12 ; unaffected 0 < 2.6.12 ; unaffected 5.10.261 ≤ 5.10.* ; unaffected 5.15.212 ≤ 5.15.* ; unaffected 6.1.178 ≤ 6.1.* ; unaffected 6.6.145 ≤ 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