smb: client: fix double-free in SMB2_close() replay (Linux Linux)

CVE-2026-64597
CRITICAL 9.8

En bref

Source
NVD
EPSS
EPSS 0.36 % · centile 30 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Received

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2_close() replay A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_close_init() fails before the next send, cleanup retains the previous buffer type and frees that response again. Reset response bookkeeping before each attempt to prevent the stale free.

Faiblesses (CWE)

  • CWE-415 — Double libération

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/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 433042a91f9373241307725b52de573933ffedbf < 037511726228aaf165c7067ff2bfc88eaecdf1f3 ; affected 4f1fffa2376922f3d1d506e49c0fd445b023a28e < 0aa97edf7c347c0f54e7e60c4740574b8120c66a ; affected 4f1fffa2376922f3d1d506e49c0fd445b023a28e < d15d83125007f673aec4323e1bbbaaffbe87ea13 ; affected 4f1fffa2376922f3d1d506e49c0fd445b023a28e < b18ed621dbfceecea5539848cddcb9272c9a61e1 ; affected 4f1fffa2376922f3d1d506e49c0fd445b023a28e < f96e1cdcb63ed3321142ff2fcdf784e32cda8fee ; affected 6.6.32 < 6.6.145
Linux · Linuxaffected 6.8 ; unaffected 0 < 6.8 ; unaffected 6.6.145 ≤ 6.6.* ; unaffected 6.12.96 ≤ 6.12.* ; unaffected 6.18.39 ≤ 6.18.* ; unaffected 7.1.4 ≤ 7.1.*

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