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Review reviewHigh

CVE-2025-39750

Linux Linux, linux kernel

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 ca...

CVSS
7.1
EPSS
-
- percentile
CISA KEV
Not listed
Published
2025.09.12
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.1

Vulnerability overview

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 ca...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= d889913205cf7ebda905b1e62c5867ed4e39f6c2 < 30cad87978057516c93467516bc481a3eacfd66a, >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 < 2ef17d1476ab26bce89764e2f16833d7f52acc38, >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 < 907c630e58af9e86e215f3951c7b287bd86d0f15, >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 < 6301fe4f209165334d251a1c6da8ae47f93cb32c, >= d889913205cf7ebda905b1e62c5867ed4e39f6c2 < 4a2bf707270f897ab8077baee8ed5842a5321686, >= 6.3, >= 6.3 < 6.6.103, >= 6.7 < 6.12.43, >= 6.13 < 6.15.11, >= 6.16 < 6.16.2
Fixed versions
6.6.103, 6.12.43, 6.15.11, 6.16.2

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE
CWE-125