CVE-2026-64136 (GCVE-0-2026-64136)
Vulnerability from cvelistv5
Published
2026-07-19 15:40
Modified
2026-10-19 20:28
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
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().
References
Impacted products
Vendor Product Version
Linux Linux Version: 953953abb66e52c224057ab91e404284fefeab62
Version: 601dd3b79769b38d30b693c40afdb2a4b7edf9d0
Version: 3969db6b22e3d90d8c5f22ac1a7fe0350a94c136
Version: 96c4af418586ee9a6aab61738644366426e05316
Version: 96c4af418586ee9a6aab61738644366426e05316
Version: 8c59eeeeffa1524ef57e173a89a1a3ff539888d5
Version: 6.6.128   ≤
Version: 6.12.75   ≤
Version: 6.18.16   ≤
Version: 6.19.6   ≤
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