Riskcovery

CVE-2025-68729

wifi: ath12k: Fix MSDU buffer types handling in RX error path

State
Published
Severity
Not scored
Published
Dec 24, 2025
Updated
Oct 21, 2026
Reserved
Dec 24, 2025

Read the record on cve.org

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

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before abfbceda0d2391524ad1df88867b3f3af36d17c7Affected
  • d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 17a9b93283c6f0b799a338bbc50fa115012429d9Affected
  • d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 5ff5a9d71cdc49c3400f30583a784ad0a17d01ecAffected
  • d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before ab0554f51e5f2b9506e8a09e8accd02f00056729Affected
  • d889913205cf7ebda905b1e62c5867ed4e39f6c2 to before 36f9edbb9d0fc36c865c74f3c1ad8e1261ad3981Affected
LinuxLinux
  • 6.3Affected
  • before 6.3Not affected
  • 6.6.160 through 6.6.*Not affected
  • 6.12.114 through 6.12.*Not affected
  • 6.17.13 through 6.17.*Not affected
  • 6.18.2 through 6.18.*Not affected
  • 6.19 and laterNot affected

References

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