{"id":"CVE-2026-90197","revision":"00b4769b92e543e58da3b6e28c82836d","records":[{"revision":"00b4769b92e543e58da3b6e28c82836d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90197","aliases":[],"title":"HID: haptic: don't write an uninitialized value to unhandled usages","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: haptic: don't write an uninitialized value to unhandled usages\n\nfill_effect_buf() initializes value only for the four haptic usages\nhandled by its switch, but writes it to field->value[] for every usage.\nAn unhandled usage can therefore receive either an uninitialized value\nor one left over from the previous usage. hid_output_report() then\nserializes that value into the effect's report buffer.\n\nSkip unhandled usages instead. This also matches switch_mode(), which\nonly updates fields it recognizes.\n\nFound with Clang's -Wconditional-uninitialized.","state":0,"publishedAt":"2026-09-17T16:07:16.281+00:00","modifiedAt":"2026-10-19T08:59:33.533+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/hid/hid-haptic.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"344ff358495706abc7aac1e0c59a5bb16b350307\",\n                            \"lessThan\": \"324cc98b71f0d3dee7367ef3c669fd80747e71b6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"344ff358495706abc7aac1e0c59a5bb16b350307\",\n                            \"lessThan\": \"2d92c250815cba6bffd64f0125fac7afe4fa6ce0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"344ff358495706abc7aac1e0c59a5bb16b350307\",\n                            \"lessThan\": \"3efb7f6491526f5012f9ec94769e9ed832feeef8\",\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/hid/hid-haptic.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.18\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.18\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\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":[],"references":["https://git.kernel.org/stable/c/324cc98b71f0d3dee7367ef3c669fd80747e71b6","https://git.kernel.org/stable/c/2d92c250815cba6bffd64f0125fac7afe4fa6ce0","https://git.kernel.org/stable/c/3efb7f6491526f5012f9ec94769e9ed832feeef8"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90197","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90197","identifiers":["CVE-2026-90197"]},"retained":false,"historicalAffected":[]}],"coverage":[]}