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CVE-2026-64136

CRITICAL CVSS: 9.8 Published: 2026-07-19 Modified: 2026-08-13

Description

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().

Affected Platforms

Linux Linux Kernel

Weakness Type

NVD-CWE-noinfo

References