{"cve":"CVE-2026-99022","nvd":{"published":"2026-10-23T13:17:25.127","modified":"2026-10-23T13:17:25.127","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: ltc3676: don't read the write-only HRST and CLIRQ registers\n\nHRST (0x1e) and CLIRQ (0x1f) are write-only command strobes. Writing HRST\ntriggers a hard reset of the chip and writing CLIRQ clears the interrupt;\nreading them returns nothing useful, and the read itself fires the command.\n\nThe result is that a plain register dump resets the board:\n\n  cat /sys/kernel/debug/regmap/2-003c/registers\n\nwalks every readable register, hits HRST, and the board reboots.\n\nSplit the callback back in two so HRST and CLIRQ stay writable but are no\nlonger readable. The readable range is left unchanged\n(LTC3676_BUCK1 ... LTC3676_IRQSTAT).","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/199a62d70314d21f06a9a6faaa3ef54d0404910c","https://git.kernel.org/stable/c/1fb0d58fd363b439b4faf08a16ee6ae38b575cd4","https://git.kernel.org/stable/c/28c2388ee24cdbefbcc458fa41ef7bffaaa1cc83","https://git.kernel.org/stable/c/ca5d85335a8fa6e87b45629f1a07b412482cab17","https://git.kernel.org/stable/c/fd376d83741118e0212f0da985889c1a98d9c827"],"products":[],"source":"nvd","synced_at":"2026-10-23T16:39:28.036610720+00:00"},"epss":{"cve":"CVE-2026-99022","score":0.00168,"percentile":0.06165,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}