PT-2026-61453

CVE-2026-64136

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Published

2026-07-19

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Updated

2026-10-09

Description by

CVSS 3.1
9.8
Critical
MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description A locking issue exists in the SMB client where the tc count increment within the smb2 find smb sess tcon unlocked() function is not properly protected. This occurs because the code failed to implement the necessary lock around the tc count variable, which is intended to manage the reference count of transport connections.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploitability
Exploit
Vendors
Affected products
Related identifiers
ALSA-2026:61887
ALSA-2026:64808
OESA-2026-3704
RHSA-2026:61887
RHSA-2026:64808
SUSE-SU-2026:4120-1
SUSE-SU-2026:4254-1
USN-8593-1
USN-8603-1
USN-8618-1
USN-8663-1
USN-8664-1
USN-8728-1
USN-8728-2
USN-8728-3
USN-8729-1
USN-8729-2
USN-8729-3
USN-8729-4
USN-8729-5
USN-8729-6
USN-8761-1
USN-8761-2
USN-8761-3
USN-8781-1
USN-8802-1
USN-8906-1
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