What is CVE-2025-40131?

CVE-2025-40131 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 6.15.3 onward and patched in 6.17.3 and 6.18. CVE-2025-40131 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-40131?

CVE-2025-40131 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2025-40131?

Yes, CVE-2025-40131 has been patched. Fixed versions include 6.17.3 and 6.18. If you are running Linux kernel 6.15.3 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-40131 actively exploited?

CVE-2025-40131 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-40131

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Fix peer lookup in ath12k_dp_mon_rx_deliver_msdu() In ath12k_dp_mon_rx_deliver_msdu(), peer lookup fails because rxcb->peer_id is not updated with a valid value. This is expected in monitor mode, where RX frames bypass the regular RX descriptor path that typically sets rxcb->peer_id. As a result, the peer is NULL, and link_id and link_valid fields in the RX status are not populated. This leads to a WARN_ON in mac80211 when it receives data frame from an associated station with invalid link_id. Fix this potential issue by using ppduinfo->peer_id, which holds the correct peer id for the received frame. This ensures that the peer is correctly found and the associated link metadata is updated accordingly. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

Package Linux Kernel

Published 2025-11-12

Last modified 2026-04-15

Patch available

Yes

Affected versions

Linux kernel versions 6.15.3, 6.16 and later are affected. Fixed in 6.17.3, 6.18 and their respective stable series.

Affected from

≥ 6.15.3 ≥ 6.16

Fixed in

✓ 6.17.3 6.17.x ✓ 6.18

References

The following references provide additional information about CVE-2025-40131 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/7ca61ed8b3f3fc9a7decd68039cb1d7d1238c566
Patch
Kernel patch commit
https://git.kernel.org/stable/c/da64eb2da76ce5626238a951fdf3e81810454427
Patch

Frequently asked questions

What is CVE-2025-40131?

CVE-2025-40131 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.15.3 onward and has been patched in 6.17.3 and 6.18. CVE-2025-40131 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2025-40131?

Yes — CVE-2025-40131 has been patched. Fixed versions include 6.17.3 and 6.18. If you are running Linux kernel 6.15.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-40131 actively exploited?

No — CVE-2025-40131 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.