CVE-2026-64086
kernel: hwmon: (pmbus/adm1266) include PEC byte in pmbus_block_xfer read buffer
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Severity
ModerateRed Hat Product Security
CVSS
Review impact separately from score.
Published · July 19, 2026
Updated · October 20, 2026
Description
A flaw was found in the Linux kernel's hwmon (hardware monitoring) subsystem, specifically in the pmbus/adm1266 driver. The adm1266_pmbus_block_xfer() function attempts to read one byte more than the allocated buffer size during a block transfer read operation. This out-of-bounds write can lead to memory corruption and potentially an information disclosure or denial of service.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CWE-787 · Out-of-bounds Write