CVE-2026-98199

A flaw was found in the Linux kernel's Power Management Bus (PMBus) subsystem. This vulnerability allows an attacker capable of triggering the probing of affected power management devices to cause a Denial of Service (DoS) or memory corruption. The issue stems from certain hardware drivers supporting more phases than allocated by the core framework, resulting in an out-of-bounds write during device initialization. Consequently, the flaw can destabilize the operating system and crash the kernel.

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.