CVE-2026-99022
kernel: regulator: ltc3676: don't read the write-only HRST and CLIRQ registers
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 23, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's LTC3676 regulator driver. The driver improperly marks write-only command registers, including the hardware reset register, as readable. A local user with administrative privileges can cause a Denial of Service (DoS) by reading the regulator registers through debugfs, which unintentionally triggers an immediate hardware reset and reboots the system.
CVSS score applicability
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.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-749 · Exposed Dangerous Method or Function