CVE-2026-46053

net: rds: fix MR cleanup on copy error

En bref

Sévérité
HIGH 7.8
EPSS
EPSS 0.13 % · centile 3 (2026-10-27)
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: net: rds: fix MR cleanup on copy error __rds_rdma_map() hands sg/pages ownership to the transport after get_mr() succeeds. If copying the generated cookie back to user space fails after that point, the error path must not free those resources again before dropping the MR reference. Remove the duplicate unpin/free from the put_user() failure branch so that MR teardown is handled only through the existing final cleanup path.

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

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 0d4597c8c5abdeeaf50774066c16683f30184dc8 < 91a44b406bc1f9e1c5da0cb7d0d5991b43b79147 ; affected 0d4597c8c5abdeeaf50774066c16683f30184dc8 < 106dc689206610cfa2098f593fdd1e020c997835 ; affected 0d4597c8c5abdeeaf50774066c16683f30184dc8 < ec55a86f7fba7d9111df94b9c11a4755ed492995 ; affected 0d4597c8c5abdeeaf50774066c16683f30184dc8 < 8fdbb6262a4a3ed44a0830a7793903b54bb27bdc ; affected 0d4597c8c5abdeeaf50774066c16683f30184dc8 < d95cea9298be1ba8876e3f156be96d3a492085ca ; affected 0d4597c8c5abdeeaf50774066c16683f30184dc8 < 033370ffb3c9c0264d19f8ba9ef769523266589a
Linux · Linuxaffected 5.6 ; unaffected 0 < 5.6 ; unaffected 5.10.258 ≤ 5.10.* ; unaffected 5.15.209 ≤ 5.15.* ; unaffected 6.1.175 ≤ 6.1.* ; unaffected 6.6.140 ≤ 6.6.*

Références

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