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Access of Uninitialized Pointer The advisory has been revoked - it doesn't affect any version of package kernel-rt-64k  (opens in a new tab)

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  • Snyk IDSNYK-CENTOS9-KERNELRT64K-14774635
  • published31 Dec 2025
  • disclosed30 Dec 2025
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Introduced: 30 Dec 2025

CVE-2023-54300  (opens in a new tab)
CWE-824  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-64k package and not the kernel-rt-64k package as distributed by Centos.

In the Linux kernel, the following vulnerability has been resolved:

wifi: ath9k: avoid referencing uninit memory in ath9k_wmi_ctrl_rx

For the reasons also described in commit b383e8abed41 ("wifi: ath9k: avoid uninit memory read in ath9k_htc_rx_msg()"), ath9k_htc_rx_msg() should validate pkt_len before accessing the SKB.

For example, the obtained SKB may have been badly constructed with pkt_len = 8. In this case, the SKB can only contain a valid htc_frame_hdr but after being processed in ath9k_htc_rx_msg() and passed to ath9k_wmi_ctrl_rx() endpoint RX handler, it is expected to have a WMI command header which should be located inside its data payload.

Implement sanity checking inside ath9k_wmi_ctrl_rx(). Otherwise, uninit memory can be referenced.

Tested on Qualcomm Atheros Communications AR9271 802.11n .

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.