atm: clip: Fix potential null-ptr-deref in to_atmarpd(). (Linux Linux)

CVE-2025-38460
HIGH 7.0

En bref

Source
NVD
EPSS
EPSS 0.19 % · centile 9 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: atm: clip: Fix potential null-ptr-deref in to_atmarpd(). atmarpd is protected by RTNL since commit f3a0592b37b8 ("[ATM]: clip causes unregister hang"). However, it is not enough because to_atmarpd() is called without RTNL, especially clip_neigh_solicit() / neigh_ops->solicit() is unsleepable. Also, there is no RTNL dependency around atmarpd. Let's use a private mutex and RCU to protect access to atmarpd in to_atmarpd().

Faiblesses (CWE)

  • CWE-476 — Déréférencement de pointeur nul

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)
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a4c5785feb979cd996a99cfaad8bf353b2e79301 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 70eac9ba7ce25d99c1d99bbf4ddb058940f631f9 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3251ce3979f41bd228f77a7615f9dd616d06a110 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ee4d9e4ddf3f9c4ee2ec0a3aad6196ee36d30e57 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 06935c50cfa3ac57cce80bba67b6d38ec1406e92 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 36caab990b69ef4eec1d81c52a19f080b7daa059
Linux · Linuxaffected 2.6.12 ; unaffected 0 < 2.6.12 ; unaffected 5.4.296 ≤ 5.4.* ; unaffected 5.10.240 ≤ 5.10.* ; unaffected 5.15.189 ≤ 5.15.* ; unaffected 6.1.146 ≤ 6.1.*

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