{"api_version":"1","generated_at":"2026-10-22T17:45:22+00:00","cve":"CVE-2026-98860","urls":{"html":"https://cve.report/CVE-2026-98860","api":"https://cve.report/api/cve/CVE-2026-98860.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98860","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98860"},"summary":{"title":"HID: bpf: cast size to ssize_t when checking hid_bpf_hw_request","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: bpf: cast size to ssize_t when checking hid_bpf_hw_request\n\nAs reported by Sashiko:\nIf a transport driver encounters a hardware error and returns a negative\nerror code such as -EPIPE, ret is implicitly promoted to size_t when\ncompared against size. This causes the negative error code to evaluate\nas a large positive number, making the (ret > size) condition true.\n\nThis silently converts the hardware error into a success return value\nand copies the unmodified buffer back, which could leave BPF programs\noperating on uninitialized or stale data.\n\nFix this by casting size into ssize_t to return the actual negative\nerror code.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-18 16:17:40","updated_at":"2026-10-19 10:19:50"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/97be6396817bd3b11d06239010d27902940bfaa9","name":"https://git.kernel.org/stable/c/97be6396817bd3b11d06239010d27902940bfaa9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f9f808227554b2c116fd07dd2328ecd74ea3f411","name":"https://git.kernel.org/stable/c/f9f808227554b2c116fd07dd2328ecd74ea3f411","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8b85ef0f561039e249c3f883c5280a1449c6dbee","name":"https://git.kernel.org/stable/c/8b85ef0f561039e249c3f883c5280a1449c6dbee","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3afefbfe55c2a8a0c4bdf6f4cc1f773da120027c","name":"https://git.kernel.org/stable/c/3afefbfe55c2a8a0c4bdf6f4cc1f773da120027c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98860","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98860","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d6efaa50af62fb0790dd1fd4e7e5506b46312510 8b85ef0f561039e249c3f883c5280a1449c6dbee git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 73c5b5aea1c443239c8cb4191b4af7a4bd6fd7b1 97be6396817bd3b11d06239010d27902940bfaa9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2b658c1c442ec1cd9eec5ead98d68662c40fe645 f9f808227554b2c116fd07dd2328ecd74ea3f411 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2b658c1c442ec1cd9eec5ead98d68662c40fe645 3afefbfe55c2a8a0c4bdf6f4cc1f773da120027c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected eb57dae20fdf6f3069cdc07821fa3bb46de381d7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.12.78 6.12.113 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.18.20 6.18.56 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19.10 6.20 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7.0","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.113 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.56 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.10 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"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":"8b85ef0f561039e249c3f883c5280a1449c6dbee","status":"affected","version":"d6efaa50af62fb0790dd1fd4e7e5506b46312510","versionType":"git"},{"lessThan":"97be6396817bd3b11d06239010d27902940bfaa9","status":"affected","version":"73c5b5aea1c443239c8cb4191b4af7a4bd6fd7b1","versionType":"git"},{"lessThan":"f9f808227554b2c116fd07dd2328ecd74ea3f411","status":"affected","version":"2b658c1c442ec1cd9eec5ead98d68662c40fe645","versionType":"git"},{"lessThan":"3afefbfe55c2a8a0c4bdf6f4cc1f773da120027c","status":"affected","version":"2b658c1c442ec1cd9eec5ead98d68662c40fe645","versionType":"git"},{"status":"affected","version":"eb57dae20fdf6f3069cdc07821fa3bb46de381d7","versionType":"git"},{"lessThan":"6.12.113","status":"affected","version":"6.12.78","versionType":"semver"},{"lessThan":"6.18.56","status":"affected","version":"6.18.20","versionType":"semver"},{"lessThan":"6.20","status":"affected","version":"6.19.10","versionType":"semver"}]},{"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":"7.0"},{"lessThan":"7.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.113","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.56","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.113","versionStartIncluding":"6.12.78","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.56","versionStartIncluding":"6.18.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.10","versionStartIncluding":"7.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"7.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19.10","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: bpf: cast size to ssize_t when checking hid_bpf_hw_request\n\nAs reported by Sashiko:\nIf a transport driver encounters a hardware error and returns a negative\nerror code such as -EPIPE, ret is implicitly promoted to size_t when\ncompared against size. This causes the negative error code to evaluate\nas a large positive number, making the (ret > size) condition true.\n\nThis silently converts the hardware error into a success return value\nand copies the unmodified buffer back, which could leave BPF programs\noperating on uninitialized or stale data.\n\nFix this by casting size into ssize_t to return the actual negative\nerror code."}],"providerMetadata":{"dateUpdated":"2026-10-19T09:26:54.770Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/8b85ef0f561039e249c3f883c5280a1449c6dbee"},{"url":"https://git.kernel.org/stable/c/97be6396817bd3b11d06239010d27902940bfaa9"},{"url":"https://git.kernel.org/stable/c/f9f808227554b2c116fd07dd2328ecd74ea3f411"},{"url":"https://git.kernel.org/stable/c/3afefbfe55c2a8a0c4bdf6f4cc1f773da120027c"}],"title":"HID: bpf: cast size to ssize_t when checking hid_bpf_hw_request","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98860","datePublished":"2026-10-18T15:51:21.403Z","dateReserved":"2026-09-25T10:25:14.376Z","dateUpdated":"2026-10-19T09:26:54.770Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-18 16:17:40","lastModifiedDate":"2026-10-19 10:19:50","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98860","Ordinal":"1","Title":"HID: bpf: cast size to ssize_t when checking hid_bpf_hw_request","CVE":"CVE-2026-98860","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98860","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: bpf: cast size to ssize_t when checking hid_bpf_hw_request\n\nAs reported by Sashiko:\nIf a transport driver encounters a hardware error and returns a negative\nerror code such as -EPIPE, ret is implicitly promoted to size_t when\ncompared against size. This causes the negative error code to evaluate\nas a large positive number, making the (ret > size) condition true.\n\nThis silently converts the hardware error into a success return value\nand copies the unmodified buffer back, which could leave BPF programs\noperating on uninitialized or stale data.\n\nFix this by casting size into ssize_t to return the actual negative\nerror code.","Type":"Description","Title":"HID: bpf: cast size to ssize_t when checking hid_bpf_hw_request"}]}}}