Race condition in Linux kernel - CVE-2026-74407
Published: August 15, 2026
Vulnerability identifier: #VU142724
CSH Severity: Low
CVSS v4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-74407
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to cause a denial of service.
The vulnerability exists due to a race condition in the ath11k PCI shutdown and SSR recovery handling when shutdown or reboot overlaps with WLAN firmware crash recovery. A local attacker can trigger a reboot during concurrent SSR activity to cause a denial of service.
This issue affects only PCI/MHI-based devices; AHB-based ath11k devices are not affected in normal SSR flows.
Affected software
Linux kernel
Ubuntu
linux-nvidia-tegra (Ubuntu package)
Ubuntu
linux-nvidia-tegra (Ubuntu package)
How to mitigate CVE-2026-74407
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
linux-nvidia-tegra (Ubuntu package) - update to 6.8.0-1035.38
linux-nvidia-tegra (Ubuntu package) - update to 6.8.0-1035.38