9.8

CVE-2026-64136

smb: client: protect tc_count increment in smb2_find_smb_sess_tcon_unlocked()

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

smb: client: protect tc_count increment in smb2_find_smb_sess_tcon_unlocked()

Commit 96c4af418586 ("cifs: Fix locking usage for tcon fields")
refactored cifs code to change cifs_tcp_ses_lock for tc_lock around
tc_count changes.

There was missing lock around tc_count increment inside
smb2_find_smb_sess_tcon_unlocked().
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxLinux Kernel Version >= 6.6.128 < 6.6.142
LinuxLinux Kernel Version >= 6.12.75 < 6.12.92
LinuxLinux Kernel Version >= 6.18.16 < 6.18.34
LinuxLinux Kernel Version >= 6.19.6 < 7.0.11
LinuxLinux Kernel Version7.1 Updaterc1
LinuxLinux Kernel Version7.1 Updaterc2
LinuxLinux Kernel Version7.1 Updaterc3
LinuxLinux Kernel Version7.1 Updaterc4
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.49% 0.393
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 9.8 3.9 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/7df1df6f40c0720d30206aa35c0343b962350e0d
Patch
https://git.kernel.org/stable/c/13fb413ae22a37c69341918a6d651d19a9b0b9b7
Patch
https://git.kernel.org/stable/c/bf4ebdb19ff9b3cdf992b50715fe61633327416a
Patch
https://git.kernel.org/stable/c/e374f4e496fef8168784f93a4477d67be34485fd
Patch
https://git.kernel.org/stable/c/4d8690dace005a38e6dbde9ecce2da3ad85c7c41
Patch