{"id":"CVE-2026-72397","revision":"6651c4e297dd4109942b47803fc5c014","records":[{"revision":"6651c4e297dd4109942b47803fc5c014","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-72397","aliases":[],"title":"hwmon: (pmbus/core) honor vrm_version in pmbus_data2reg_vid()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (pmbus/core) honor vrm_version in pmbus_data2reg_vid()\n\npmbus_data2reg_vid() hardcoded the VR11 encoding regardless of the\nvrm_version configured by the driver, while pmbus_reg2data_vid()\nalready switched on it. Any driver that selects a non-VR11 VID mode\nand exposes a regulator (or hwmon vout setter) sent dangerously\nwrong codes to PMBUS_VOUT_COMMAND -- e.g. an nvidia195mv part asked\nfor 200 mV got the VR11 clamp to 500 mV encoded as 0xB2, which the\nchip interprets as 1080 mV.\n\nMirror pmbus_reg2data_vid() so writes round-trip with reads.","state":0,"publishedAt":"2026-08-15T05:56:23.675+00:00","modifiedAt":"2026-10-21T12:44:48.405+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/hwmon/pmbus/pmbus_core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"068c227056b9223fea1a759e08db2558d5cbb5ad\",\n                            \"lessThan\": \"cd0e037130806d7714c356eccefac6e1b92dbc34\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"068c227056b9223fea1a759e08db2558d5cbb5ad\",\n                            \"lessThan\": \"125a5a4ad03c74ced4c2a55db45ef03505362ff9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"068c227056b9223fea1a759e08db2558d5cbb5ad\",\n                            \"lessThan\": \"5bd0d47640395f8a8c34446b62d1781b88869dfa\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"068c227056b9223fea1a759e08db2558d5cbb5ad\",\n                            \"lessThan\": \"828cd614e2af053ca5e1d6da767bbd8a1b5cabfb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/hwmon/pmbus/pmbus_core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.160\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.114\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.5\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","score":7.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/cd0e037130806d7714c356eccefac6e1b92dbc34","https://git.kernel.org/stable/c/125a5a4ad03c74ced4c2a55db45ef03505362ff9","https://git.kernel.org/stable/c/5bd0d47640395f8a8c34446b62d1781b88869dfa","https://git.kernel.org/stable/c/828cd614e2af053ca5e1d6da767bbd8a1b5cabfb"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72397","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-72397","identifiers":["CVE-2026-72397"]},"retained":false,"historicalAffected":[]}],"coverage":[]}