8.8

CVE-2026-43215

cifs: Fix locking usage for tcon fields

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

cifs: Fix locking usage for tcon fields

We used to use the cifs_tcp_ses_lock to protect a lot of objects
that are not just the server, ses or tcon lists. We later introduced
srv_lock, ses_lock and tc_lock to protect fields within the
corresponding structs. This was done to provide a more granular
protection and avoid unnecessary serialization.

There were still a couple of uses of cifs_tcp_ses_lock to provide
tcon fields. In this patch, I've replaced them with tc_lock.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.0 < 6.6.128
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.75
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.16
Linux ≫ Linux Kernel Version >= 6.19 < 6.19.6
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.3% 0.212
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-667 Improper Locking

The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

https://git.kernel.org/stable/c/953953abb66e52c224057ab91e404284fefeab62
Patch
https://git.kernel.org/stable/c/601dd3b79769b38d30b693c40afdb2a4b7edf9d0
Patch
https://git.kernel.org/stable/c/3969db6b22e3d90d8c5f22ac1a7fe0350a94c136
Patch
https://git.kernel.org/stable/c/8c59eeeeffa1524ef57e173a89a1a3ff539888d5
Patch
https://git.kernel.org/stable/c/96c4af418586ee9a6aab61738644366426e05316
Patch