{"api_version":"1","generated_at":"2026-04-23T09:39:51+00:00","cve":"CVE-2026-31401","urls":{"html":"https://cve.report/CVE-2026-31401","api":"https://cve.report/api/cve/CVE-2026-31401.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-31401","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-31401"},"summary":{"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":"PUBLISHED","assigner":"Linux","published_at":"2026-04-03 16:16:39","updated_at":"2026-04-07 13:20:55"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/d6efaa50af62fb0790dd1fd4e7e5506b46312510","name":"https://git.kernel.org/stable/c/d6efaa50af62fb0790dd1fd4e7e5506b46312510","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/73c5b5aea1c443239c8cb4191b4af7a4bd6fd7b1","name":"https://git.kernel.org/stable/c/73c5b5aea1c443239c8cb4191b4af7a4bd6fd7b1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2b658c1c442ec1cd9eec5ead98d68662c40fe645","name":"https://git.kernel.org/stable/c/2b658c1c442ec1cd9eec5ead98d68662c40fe645","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/eb57dae20fdf6f3069cdc07821fa3bb46de381d7","name":"https://git.kernel.org/stable/c/eb57dae20fdf6f3069cdc07821fa3bb46de381d7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-31401","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31401","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8bd0488b5ea58655ad6fdcbe0408ef49b16882b1 d6efaa50af62fb0790dd1fd4e7e5506b46312510 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8bd0488b5ea58655ad6fdcbe0408ef49b16882b1 73c5b5aea1c443239c8cb4191b4af7a4bd6fd7b1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8bd0488b5ea58655ad6fdcbe0408ef49b16882b1 eb57dae20fdf6f3069cdc07821fa3bb46de381d7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8bd0488b5ea58655ad6fdcbe0408ef49b16882b1 2b658c1c442ec1cd9eec5ead98d68662c40fe645 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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00:03:39"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/hid/bpf/hid_bpf_dispatch.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d6efaa50af62fb0790dd1fd4e7e5506b46312510","status":"affected","version":"8bd0488b5ea58655ad6fdcbe0408ef49b16882b1","versionType":"git"},{"lessThan":"73c5b5aea1c443239c8cb4191b4af7a4bd6fd7b1","status":"affected","version":"8bd0488b5ea58655ad6fdcbe0408ef49b16882b1","versionType":"git"},{"lessThan":"eb57dae20fdf6f3069cdc07821fa3bb46de381d7","status":"affected","version":"8bd0488b5ea58655ad6fdcbe0408ef49b16882b1","versionType":"git"},{"lessThan":"2b658c1c442ec1cd9eec5ead98d68662c40fe645","status":"affected","version":"8bd0488b5ea58655ad6fdcbe0408ef49b16882b1","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/hid/bpf/hid_bpf_dispatch.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.11"},{"lessThan":"6.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.78","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.20","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0-rc5","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.78","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.20","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.10","versionStartIncluding":"6.11","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0-rc5","versionStartIncluding":"6.11","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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."}],"providerMetadata":{"dateUpdated":"2026-04-03T15:16:04.903Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/d6efaa50af62fb0790dd1fd4e7e5506b46312510"},{"url":"https://git.kernel.org/stable/c/73c5b5aea1c443239c8cb4191b4af7a4bd6fd7b1"},{"url":"https://git.kernel.org/stable/c/eb57dae20fdf6f3069cdc07821fa3bb46de381d7"},{"url":"https://git.kernel.org/stable/c/2b658c1c442ec1cd9eec5ead98d68662c40fe645"}],"title":"HID: bpf: prevent buffer overflow in hid_hw_request","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-31401","datePublished":"2026-04-03T15:16:04.903Z","dateReserved":"2026-03-09T15:48:24.086Z","dateUpdated":"2026-04-03T15:16:04.903Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-03 16:16:39","lastModifiedDate":"2026-04-07 13:20:55","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"31401","Ordinal":"1","Title":"HID: bpf: prevent buffer overflow in hid_hw_request","CVE":"CVE-2026-31401","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"31401","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"HID: bpf: prevent buffer overflow in hid_hw_request"}]}}}