CVE-2025-39750
Published: September 12, 2025Last modified: September 12, 2025
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.1 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Not affected (6.1.33-r0) |
| 25 LTS | linux-lts | Fixed (6.12.44-r0) | |
| Stream | linux-lts | Fixed (6.12.43-r0) |
References
- https://git.kernel.org/stable/c/2ef17d1476ab26bce89764e2f16833d7f52acc38
- https://git.kernel.org/stable/c/30cad87978057516c93467516bc481a3eacfd66a
- https://git.kernel.org/stable/c/4a2bf707270f897ab8077baee8ed5842a5321686
- https://git.kernel.org/stable/c/6301fe4f209165334d251a1c6da8ae47f93cb32c
- https://git.kernel.org/stable/c/907c630e58af9e86e215f3951c7b287bd86d0f15