CVE-2026-98938

A flaw was found in the Linux kernel's Rust interrupt handling subsystem. During interrupt request (IRQ) registration, an interrupt can be serviced before the registration structure is fully initialized, causing the callback handler to access uninitialized memory. A local attacker could exploit this flaw to cause a Denial of Service (DoS) through a kernel crash or potentially expose sensitive kernel information.

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.