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

cifs: fix potential race when tree connecting ipc

Protect access of TCP_Server_Info::hostname when building the ipc tree
name as it might get freed in cifsd thread and thus causing an
use-after-free bug in __tree_connect_dfs_target(). Also, while at it,
update status of IPC tcon on success and then avoid any extra tree
connects.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00024.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e affected < 536ec71ba060a02fabe8e22cecb82fe7b3a8708b
c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e affected < 553476df55a111e6a66ad9155256aec0ec1b7ad0
c88f7dcd6d6429197fc2fd87b54a894ffcd48e8e affected < ee20d7c6100752eaf2409d783f4f1449c29ea33d
81d583baa5f1abd73c755ce1992929debd20b687 affected —
Linux Linux affected
Version Status Constraints
5.16 affected —
0 unaffected < 5.16
6.2.15 unaffected ≤ 6.2.*
6.3.2 unaffected ≤ 6.3.*
6.4 unaffected ≤ *

No data.

No data.

No data.

Project Subscriptions

Vendors Products
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Linux Kernel Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/536ec71ba060a02fabe8e22cecb82fe7b3a8708b cve-icon cve-icon
https://git.kernel.org/stable/c/553476df55a111e6a66ad9155256aec0ec1b7ad0 cve-icon cve-icon
https://git.kernel.org/stable/c/ee20d7c6100752eaf2409d783f4f1449c29ea33d cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025123026-CVE-2023-54280-26ee@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-54280 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-54280 cve-icon
History

Wed, 31 Dec 2025 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Tue, 30 Dec 2025 12:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: cifs: fix potential race when tree connecting ipc Protect access of TCP_Server_Info::hostname when building the ipc tree name as it might get freed in cifsd thread and thus causing an use-after-free bug in __tree_connect_dfs_target(). Also, while at it, update status of IPC tcon on success and then avoid any extra tree connects.
Title cifs: fix potential race when tree connecting ipc
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: 2026-01-05T11:37:13.944Z

Reserved: 2025-12-30T12:06:44.525Z

Link: CVE-2023-54280

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-30T13:16:16.970

Modified: 2025-12-31T20:42:43.210

Link: CVE-2023-54280

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-12-30T00:00:00Z

Links: CVE-2023-54280 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.