CVE-2026-90124
kernel: irqchip/renesas-rzg2l: Fix loss of interrupt
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 13, 2026
Description
A flaw was found in the Linux kernel's interrupt handling for Renesas RZ/G2L devices. A race condition in the interrupt clearing mechanism can occur when multiple interrupts are triggered concurrently. This can lead to the premature clearing and loss of an unserviced interrupt. The consequence is a denial of service, as the system may fail to respond to critical hardware events.
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-367 · Time-of-check Time-of-use (TOCTOU) Race Condition