CVE-2026-93815
kernel: net: au1000: move free_irq out of the close-time spinlocked section
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 24, 2026
Updated · September 28, 2026
Description
A flaw was found in the Linux kernel's Au1000 Ethernet driver. This vulnerability allows a privileged local user to cause a Denial of Service (DoS) when disabling or closing the network interface. The issue occurs because the driver executes a sleepable interrupt cleanup routine while holding an atomic lock, which can trigger a kernel crash.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-821 · Incorrect Synchronization