smc: Use __sk_dst_get() and dst_dev_rcu() in in smc_clc_prfx_set(). (Linux Linux)

CVE-2025-40139
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.17 % · centile 6 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: smc: Use __sk_dst_get() and dst_dev_rcu() in in smc_clc_prfx_set(). smc_clc_prfx_set() is called during connect() and not under RCU nor RTNL. Using sk_dst_get(sk)->dev could trigger UAF. Let's use __sk_dst_get() and dev_dst_rcu() under rcu_read_lock() after kernel_getsockname(). Note that the returned value of smc_clc_prfx_set() is not used in the caller. While at it, we change the 1st arg of smc_clc_prfx_set[46]_rcu() not to touch dst there.

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

Produits affectés

ProduitVersions
Linux · Linuxaffected a046d57da19f812216f393e7c535f5858f793ac3 < 5a2fccc4b32c13ddde3676f9e15e1a9baa7d6fde ; affected a046d57da19f812216f393e7c535f5858f793ac3 < 80d1fd39f4e37d836655e9f7ffccaf78925049bf ; affected a046d57da19f812216f393e7c535f5858f793ac3 < 956c57daba55cf9ed25d9f2512883b8a1a927599 ; affected a046d57da19f812216f393e7c535f5858f793ac3 < 0736993bfe5c7a9c744ae3fac62d769dfdae54e1 ; affected a046d57da19f812216f393e7c535f5858f793ac3 < 935d783e5de9b64587f3adb25641dd8385e64ddb
Linux · Linuxaffected 4.11 ; unaffected 0 < 4.11 ; unaffected 6.1.187 ≤ 6.1.* ; unaffected 6.6.156 ≤ 6.6.* ; unaffected 6.12.108 ≤ 6.12.* ; unaffected 6.17.3 ≤ 6.17.*

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