{"id":"CVE-2026-31401","revision":"2a70801ed971451a8ccfab978e492149","records":[{"revision":"2a70801ed971451a8ccfab978e492149","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-31401","aliases":[],"title":"HID: bpf: prevent buffer overflow in hid_hw_request","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: bpf: prevent buffer overflow in hid_hw_request\n\nright now the returned value is considered to be always valid. However,\nwhen playing with HID-BPF, the return value can be arbitrary big,\nbecause it's the return value of dispatch_hid_bpf_raw_requests(), which\ncalls the struct_ops and we have no guarantees that the value makes\nsense.","state":0,"publishedAt":"2026-04-03T15:16:04.903+00:00","modifiedAt":"2026-10-19T18:35:46.408+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/bpf/hid_bpf_dispatch.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"8bd0488b5ea58655ad6fdcbe0408ef49b16882b1\",\n                            \"lessThan\": \"d6efaa50af62fb0790dd1fd4e7e5506b46312510\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"8bd0488b5ea58655ad6fdcbe0408ef49b16882b1\",\n                            \"lessThan\": \"73c5b5aea1c443239c8cb4191b4af7a4bd6fd7b1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"8bd0488b5ea58655ad6fdcbe0408ef49b16882b1\",\n                            \"lessThan\": \"eb57dae20fdf6f3069cdc07821fa3bb46de381d7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"8bd0488b5ea58655ad6fdcbe0408ef49b16882b1\",\n                            \"lessThan\": \"2b658c1c442ec1cd9eec5ead98d68662c40fe645\",\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/bpf/hid_bpf_dispatch.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.11\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.11\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.78\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.20\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19.10\",\n                            \"lessThanOrEqual\": \"6.19.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0\",\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:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/d6efaa50af62fb0790dd1fd4e7e5506b46312510","https://git.kernel.org/stable/c/73c5b5aea1c443239c8cb4191b4af7a4bd6fd7b1","https://git.kernel.org/stable/c/eb57dae20fdf6f3069cdc07821fa3bb46de381d7","https://git.kernel.org/stable/c/2b658c1c442ec1cd9eec5ead98d68662c40fe645"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-31401","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-31401","identifiers":["CVE-2026-31401"]},"retained":false,"historicalAffected":[]}],"coverage":[]}