NULL pointer dereference in Linux kernel - CVE-2025-38606

Vulnerability identifier: #VU114261

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-38606

CWE-ID: CWE-476

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the ath12k_p2p_noa_update_vdev_iter() function in drivers/net/wireless/ath/ath12k/p2p.c, within the ath12k_get_arvif_iter(), ath12k_mac_handle_beacon_iter(), ath12k_mac_handle_beacon_miss_iter(), ath12k_mac_change_chanctx_cnt_iter() and ath12k_mac_change_chanctx_fill_iter() functions in drivers/net/wireless/ath/ath12k/mac.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-oem-6.14 (Ubuntu package)
linux-realtime-6.14 (Ubuntu package)
linux-azure (Ubuntu package)
linux-aws-6.14 (Ubuntu package)
linux-gcp-6.14 (Ubuntu package)

Install update from vendor's repository.

linux (Ubuntu package) - addressed in versions 6.14.0-36.36, 6.14.0-36.36~24.04.1, 6.14.0-1016.16~24.04.1, 6.14.0-1017.17, 6.14.0-1020.21
linux-oem-6.14 (Ubuntu package) - update to 6.14.0-1016.16
linux-realtime-6.14 (Ubuntu package) - update to 6.14.0-1016.16~24.04.1
linux-azure (Ubuntu package) - addressed in versions 6.14.0-1017.17, 6.14.0-1017.17~24.04.1
linux-aws-6.14 (Ubuntu package) - update to 6.14.0-1017.17~24.04.1
linux-gcp-6.14 (Ubuntu package) - addressed in versions 6.14.0-1018.18, 6.14.0-1020.21~24.04.1

• https://git.kernel.org/stable/c/1259b6da8303f70fef6ed4aef8ae3dedfecb0f27
• https://git.kernel.org/stable/c/36670b67de18f1e5d34900c5d2ac60a8970c293c
• https://git.kernel.org/stable/c/9b861dfc5c07defd0191fd3e7288a3179cd9a02e

• NULL pointer dereference in Linux kernel ath ath12k driver
• Ubuntu update for linux-oem-6.14
• Ubuntu update for linux-realtime-6.14
• Ubuntu update for linux
• Ubuntu update for linux-aws-6.14
• Ubuntu update for linux-gcp-6.14
• Ubuntu update for linux-azure