# CVE-2025-68729: linux: In the Linux kernel, the following vulnerability has been resolved:  wifi: ath12k: Fix MSDU buffer types handling in...

CVE-2025-68729 is fixed in linux on 1 platform, first by DEBIAN-CVE-2025-68729, released December 24, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-68729
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0021
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 24, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  wifi: ath12k: Fix MSDU buffer types handling in RX error path  Currently, packets received on the REO exception ring from unassociated peers are of MSDU buffer type, while the driver expects link descriptor type packets. These packets are not parsed further due to a return check on packet type in ath12k_hal_desc_reo_parse_err(), but the associated skb is not freed. This may lead to kernel crashes and buffer leaks.  Hence to fix, update the RX error handler to explicitly drop MSDU buffer type packets received on the REO exception ring. This prevents further processing of invalid packets and ensures stability in the RX error handling path.  Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.115-2 | [DEBIAN-CVE-2025-68729](https://patchblox.com/security/data/fix/linux/debian-cve-2025-68729.md) | Dec 24, 2025 |
| Linux | linux Debian 14 | 6.17.13-1 | [DEBIAN-CVE-2025-68729](https://patchblox.com/security/data/fix/linux/debian-cve-2025-68729.md) | Dec 24, 2025 |

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Data as of 2026-11-09T13:31:49Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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