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CVE-2025-39750

wifi: ath12k: Correct tid cleanup when tid setup fails

HIGH
7.1
CVSS Score
Published: September 11, 2025 at 04:52 PM UTC
Updated: October 19, 2026 at 09:10 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.13 ≤ v < 6.15.116.16 ≤ v < 6.16.26.3 ≤ v < 6.6.1036.7 ≤ v < 6.12.436.3d889913205cf7ebda905b1e62c5867ed4e39f6c2
Vendor states this is fixed in 2ef17d1476ab26bce89764e2f16833d7f52acc38 (fixed)
Vendor states this is fixed in 30cad87978057516c93467516bc481a3eacfd66a (fixed)
Vendor states this is fixed in 4a2bf707270f897ab8077baee8ed5842a5321686 (fixed)
Vendor states this is fixed in 6301fe4f209165334d251a1c6da8ae47f93cb32c (fixed)
Vendor states this is fixed in 907c630e58af9e86e215f3951c7b287bd86d0f15 (fixed)
Vendor states this is fixed in 6.12.43 (unaffected)
Vendor states this is fixed in 6.15.11 (unaffected)
Vendor states this is fixed in 6.16.2 (unaffected)
Vendor states this is fixed in 6.17 (unaffected)
Vendor states this is fixed in 6.3 (unaffected)
Vendor states this is fixed in 6.6.103 (unaffected)

References (5)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/2ef17d1476ab26bce89764e2f16833d7f52acc38
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/30cad87978057516c93467516bc481a3eacfd66a
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4a2bf707270f897ab8077baee8ed5842a5321686
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/6301fe4f209165334d251a1c6da8ae47f93cb32c
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/907c630e58af9e86e215f3951c7b287bd86d0f15

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125

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