ksmbd: fix buffer validation by including null terminator size in EA length (Linux Linux)

CVE-2025-68806
HIGH 7.5

En bref

Source
NVD
EPSS
EPSS 0.45 % · centile 39 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix buffer validation by including null terminator size in EA length The smb2_set_ea function, which handles Extended Attributes (EA), was performing buffer validation checks that incorrectly omitted the size of the null terminating character (+1 byte) for EA Name. This patch fixes the issue by explicitly adding '+ 1' to EaNameLength where the null terminator is expected to be present in the buffer, ensuring the validation accurately reflects the total required buffer size.

Références

Scores

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

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected d070c4dd2a5bed4e9832eec5b6c029c7d14892ea < cae52c592a07e1d3fa3338a5f064a374a5f26750 ; affected 0ba5439d9afa2722e7728df56f272c89987540a4 < a28a375a5439eb474e9f284509a407efb479c925 ; affected 0ba5439d9afa2722e7728df56f272c89987540a4 < d26af6d14da43ab92d07bc60437c62901dc522e6 ; affected 0ba5439d9afa2722e7728df56f272c89987540a4 < 6dc8cf6e7998ef7aeb9383a4c2904ea5d22fa2e4 ; affected 0ba5439d9afa2722e7728df56f272c89987540a4 < 95d7a890e4b03e198836d49d699408fd1867cb55 ; affected bb5bf157b5be1643cccc7cbbe57fcdef9ae52c2c
Linux · Linuxaffected 6.6 ; unaffected 0 < 6.6 ; unaffected 6.1.160 ≤ 6.1.* ; unaffected 6.6.120 ≤ 6.6.* ; unaffected 6.12.64 ≤ 6.12.* ; unaffected 6.18.3 ≤ 6.18.*

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