Detections
Analytics
CVE-2026-99022
medium
Description
In the Linux kernel, the following vulnerability has been resolved: regulator: ltc3676: don't read the write-only HRST and CLIRQ registers HRST (0x1e) and CLIRQ (0x1f) are write-only command strobes. Writing HRST triggers a hard reset of the chip and writing CLIRQ clears the interrupt; reading them returns nothing useful, and the read itself fires the command. The result is that a plain register dump resets the board: cat /sys/kernel/debug/regmap/2-003c/registers walks every readable register, hits HRST, and the board reboots. Split the callback back in two so HRST and CLIRQ stay writable but are no longer readable. The readable range is left unchanged (LTC3676_BUCK1 ... LTC3676_IRQSTAT).
References
https://git.kernel.org/stable/c/fd376d83741118e0212f0da985889c1a98d9c827
https://git.kernel.org/stable/c/f8b0ccdcf3ca7cf6e4c2c400e80f81a727f768c7
https://git.kernel.org/stable/c/ca5d85335a8fa6e87b45629f1a07b412482cab17
https://git.kernel.org/stable/c/4cc1e849bb7dd8deb37f6a51e1aaf725e2016595
https://git.kernel.org/stable/c/28c2388ee24cdbefbcc458fa41ef7bffaaa1cc83
https://git.kernel.org/stable/c/1fb0d58fd363b439b4faf08a16ee6ae38b575cd4
https://git.kernel.org/stable/c/199a62d70314d21f06a9a6faaa3ef54d0404910c
https://git.kernel.org/stable/c/0893de2397d85547d4b88379044aa541b07b56af