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

ksmbd: fix use-after-free in ksmbd_tree_connect_put under concurrency

Under high concurrency, A tree-connection object (tcon) is freed on
a disconnect path while another path still holds a reference and later
executes *_put()/write on it.

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4476-1 linux-6.1 security update
Debian DSA Debian DSA DSA-6126-1 linux security update
Debian DSA Debian DSA DSA-6127-1 linux security update
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 26 Feb 2026 18:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416
CPEs cpe:2.3:o:linux:linux_kernel:6.6:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.6:rc7:*:*:*:*:*:*
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Fri, 06 Feb 2026 16:45:00 +0000


Thu, 15 Jan 2026 00:15:00 +0000


Tue, 13 Jan 2026 15:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_tree_connect_put under concurrency Under high concurrency, A tree-connection object (tcon) is freed on a disconnect path while another path still holds a reference and later executes *_put()/write on it.
Title ksmbd: fix use-after-free in ksmbd_tree_connect_put under concurrency
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-02-09T08:34:07.177Z

Reserved: 2025-12-24T10:30:51.048Z

Link: CVE-2025-68817

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-01-13T16:16:03.983

Modified: 2026-02-26T18:43:18.717

Link: CVE-2025-68817

cve-icon Redhat

Severity :

Publid Date: 2026-01-13T00:00:00Z

Links: CVE-2025-68817 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses