9.1

CVE-2026-64257

smb: client: reject overlapping data areas in SMB2 responses

In the Linux kernel, the following vulnerability has been resolved:

smb: client: reject overlapping data areas in SMB2 responses

Commit 53b7c271f06b ("smb: client: restrict implied bcc[0] exemption to
responses without data area") restricted the implied bcc[0] length
exception to responses without a data area. However, the overlap
handling in __smb2_calc_size() clears data_length, which can make an
invalid response appear to have no data area and so qualify for the
exception.

Track data area overlap separately and reject such responses before
applying the length compatibility exceptions.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.10.261 < 5.11
Linux ≫ Linux Kernel Version >= 5.15.212 < 5.16
Linux ≫ Linux Kernel Version7.2 Updaterc3
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.67% 0.483
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 9.1 3.9 5.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/445ece263131780dee273d727a4d6f11934feec7
Patch
https://git.kernel.org/stable/c/36bfa52459e45c0d5b668de2f1c91f6dc5c67775
Patch
https://git.kernel.org/stable/c/4a9d2657d3e05f6ed09c148cb127b4e58702275f
Patch
https://git.kernel.org/stable/c/fdafa1e68dc75045b7b617e6e7d2854950804d83
Patch
https://git.kernel.org/stable/c/57cba95f0e97c6f6e45e6731da30aff091bd7460
Patch
https://git.kernel.org/stable/c/8986c932905ea508d66da421eb2eb6e676ace1fe
Patch