{"id":"CVE-2026-98197","revision":"11db4b1677c9434dae14f830528442a9","records":[{"revision":"11db4b1677c9434dae14f830528442a9","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98197","aliases":[],"title":"hwmon: (w83791d) remove fan/pwm 4-5 sysfs group on remove","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (w83791d) remove fan/pwm 4-5 sysfs group on remove\n\nWhen the fan/pwm 4-5 pins are not used as GPIO, w83791d_probe()\ncreates the w83791d_group_fanpwm45 sysfs group on the I2C client\ndevice.\n\nThe probe error path removes this group when a later initialization\nstep fails, but the normal remove path only removes w83791d_group.\nAs a result, the optional fan/pwm 4-5 sysfs files can remain after the\ndriver is unbound.\n\nThe callbacks associated with these files access the driver data,\nwhich is devm allocated and released after driver unbind. Leaving the\nsysfs files behind can therefore result in accesses to stale driver\ndata.\n\nRemove w83791d_group_fanpwm45 during normal teardown as well.\n\nThis issue was found by manual code inspection.","state":0,"publishedAt":"2026-10-06T08:44:36.283+00:00","modifiedAt":"2026-10-19T09:15:28.363+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/w83791d.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6e1ecd9b8f1358ed4d099f0c54434240dc40debe\",\n                            \"lessThan\": \"081e3a78453635fb370b1712809d2af29e60b4c5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6e1ecd9b8f1358ed4d099f0c54434240dc40debe\",\n                            \"lessThan\": \"b1d419eb3bc41245c3d3d99dfe1a7b6c45989586\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6e1ecd9b8f1358ed4d099f0c54434240dc40debe\",\n                            \"lessThan\": \"2ccf6c512290a288a2d4d7f076430dfb0c6ee476\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6e1ecd9b8f1358ed4d099f0c54434240dc40debe\",\n                            \"lessThan\": \"f6e2ab72f32d16d71a2549c7ea062dd209f71670\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6e1ecd9b8f1358ed4d099f0c54434240dc40debe\",\n                            \"lessThan\": \"2dd37d00f1f1af8e02ffa70ee573c10fd1a76864\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6e1ecd9b8f1358ed4d099f0c54434240dc40debe\",\n                            \"lessThan\": \"2c381e6e0f033f2df13bd64905e7232c42f49009\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6e1ecd9b8f1358ed4d099f0c54434240dc40debe\",\n                            \"lessThan\": \"583e04e88e75b8d57304015d83c38e82a9531600\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6e1ecd9b8f1358ed4d099f0c54434240dc40debe\",\n                            \"lessThan\": \"0ff9c7775e51ac6d47b1bb5c46f06b1434fe58a8\",\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/w83791d.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.28\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.28\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.271\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.222\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.112\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.54\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.8\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\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:H/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/081e3a78453635fb370b1712809d2af29e60b4c5","https://git.kernel.org/stable/c/b1d419eb3bc41245c3d3d99dfe1a7b6c45989586","https://git.kernel.org/stable/c/2ccf6c512290a288a2d4d7f076430dfb0c6ee476","https://git.kernel.org/stable/c/f6e2ab72f32d16d71a2549c7ea062dd209f71670","https://git.kernel.org/stable/c/2dd37d00f1f1af8e02ffa70ee573c10fd1a76864","https://git.kernel.org/stable/c/2c381e6e0f033f2df13bd64905e7232c42f49009","https://git.kernel.org/stable/c/583e04e88e75b8d57304015d83c38e82a9531600","https://git.kernel.org/stable/c/0ff9c7775e51ac6d47b1bb5c46f06b1434fe58a8"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98197","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98197","identifiers":["CVE-2026-98197"]},"retained":false,"historicalAffected":[]}],"coverage":[]}