CVE-2026-72397 hwmon: (pmbus/core) honor vrm_version in pmbus_data2reg_vid()

In the Linux kernel, the following vulnerability has been resolved: hwmon: pmbus/core honor vrmversion in pmbusdata2regvid pmbusdata2regvid hardcoded the VR11 encoding regardless of the vrmversion configured by the driver, while pmbusreg2datavid already switched on it. Any driver that selects a...

CVE-2026-72397

Summary (CVE-2026-72397): In the Linux kernel’s hwmon PMBus core, pmbus_data2reg_vid() ignored the vrm_version, always encoding VR11 while pmbus_reg2data_vid() respected it. This mismatch allowed drivers selecting non-VR11 VID modes to send incorrect PMBUS_VOUT_COMMAND values (e.g., an Nvidia 195...