High 8.8Published Sep 11, 2025

CVE-2025-39750wifi: ath12k: Correct tid cleanup when tid setup fails

Updated under an hour ago (Oct 29, 2026, 6:40 PM ET)

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No exploitation reported and no EPSS estimate yet.

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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.

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 15, 2026
First seen by InfoSec Signals: Oct 15, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from d889913205cf7ebda905b1e62c5867ed4e39f6c2 before 30cad87978057516c93467516bc481a3eacfd66a; from d889913205cf7ebda905b1e62c5867ed4e39f6c2 before 2ef17d1476ab26bce89764e2f16833d7f52acc38; from d889913205cf7ebda905b1e62c5867ed4e39f6c2 before 907c630e58af9e86e215f3951c7b287bd86d0f15; from d889913205cf7ebda905b1e62c5867ed4e39f6c2 before 6301fe4f209165334d251a1c6da8ae47f93cb32c; from d889913205cf7ebda905b1e62c5867ed4e39f6c2 before 4a2bf707270f897ab8077baee8ed5842a5321686	CNA record
linux linux_kernel linux:linux_kernel	from 6.3 before 6.6.103; from 6.7 before 6.12.43; from 6.13 before 6.15.11; from 6.16 before 6.16.2	NVD

References

References

https://git.kernel.org/stable/c/30cad87978057516c93467516bc481a3eacfd66a	patch
https://git.kernel.org/stable/c/2ef17d1476ab26bce89764e2f16833d7f52acc38	patch
https://git.kernel.org/stable/c/907c630e58af9e86e215f3951c7b287bd86d0f15	patch
https://git.kernel.org/stable/c/6301fe4f209165334d251a1c6da8ae47f93cb32c	patch
https://git.kernel.org/stable/c/4a2bf707270f897ab8077baee8ed5842a5321686	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.