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

wifi: ath12k: Correct tid cleanup when tid setup fails

Currently, if any error occurs during ath12k_dp_rx_peer_tid_setup(),
the tid value is already incremented, even though the corresponding
TID is not actually allocated. Proceed to
ath12k_dp_rx_peer_tid_delete() starting from unallocated tid,
which might leads to freeing unallocated TID and cause potential
crash or out-of-bounds access.

Hence, fix by correctly decrementing tid before cleanup to match only
the successfully allocated TIDs.

Also, remove tid-- from failure case of ath12k_dp_rx_peer_frag_setup(),
as decrementing the tid before cleanup in loop will take care of this.

Compile tested only.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

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.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors Products
Linux
  • Linux Kernel
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/2ef17d1476ab26bce89764e2f16833d7f52acc38 cve-icon cve-icon
https://git.kernel.org/stable/c/30cad87978057516c93467516bc481a3eacfd66a cve-icon cve-icon
https://git.kernel.org/stable/c/4a2bf707270f897ab8077baee8ed5842a5321686 cve-icon cve-icon
https://git.kernel.org/stable/c/6301fe4f209165334d251a1c6da8ae47f93cb32c cve-icon cve-icon
https://git.kernel.org/stable/c/907c630e58af9e86e215f3951c7b287bd86d0f15 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025091142-CVE-2025-39750-849e@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-39750 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-39750 cve-icon
History

Fri, 12 Sep 2025 08:15:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Fri, 12 Sep 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Thu, 11 Sep 2025 17:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Correct tid cleanup when tid setup fails Currently, if any error occurs during ath12k_dp_rx_peer_tid_setup(), the tid value is already incremented, even though the corresponding TID is not actually allocated. Proceed to ath12k_dp_rx_peer_tid_delete() starting from unallocated tid, which might leads to freeing unallocated TID and cause potential crash or out-of-bounds access. Hence, fix by correctly decrementing tid before cleanup to match only the successfully allocated TIDs. Also, remove tid-- from failure case of ath12k_dp_rx_peer_frag_setup(), as decrementing the tid before cleanup in loop will take care of this. Compile tested only.
Title wifi: ath12k: Correct tid cleanup when tid setup fails
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-09-29T05:58:39.644Z

Reserved: 2025-04-16T07:20:57.125Z

Link: CVE-2025-39750

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-09-11T17:15:38.590

Modified: 2025-09-15T15:22:38.297

Link: CVE-2025-39750

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-09-11T00:00:00Z

Links: CVE-2025-39750 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-09-12T08:02:35Z