CVE-2026-98888

A flaw was found in the Linux kernel's arm64 kprobes subsystem. When tracing or performance monitoring tools trigger a secondary probe while an initial probe is executing its single-step instruction, the kernel treats the event as unrecoverable and corrupts interrupt state tracking. A local user with administrative or tracing privileges can exploit this vulnerability to leave hardware interrupts permanently disabled, resulting in a system freeze and a Denial of Service (DoS).

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.