CVE-2026-68395

A flaw was found in the Linux kernel's sata_dwc_460ex driver. During the SATA controller's initialization, interrupts are enabled before the corresponding interrupt handler is fully registered. This timing issue can lead to a spurious interrupt storm if an interrupt occurs prematurely or if subsequent setup steps fail. Such an event could result in system instability or a Denial of Service (DoS).

This issue affects AppliedMicro SATA DWC controllers on PowerPC. SATA interrupts are unmasked before IRQ handler registration during probe. Systems without sata_dwc_460ex are not affected.

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.