{"api_version":"1","generated_at":"2026-08-16T16:28:19+00:00","cve":"CVE-2026-74507","urls":{"html":"https://cve.report/CVE-2026-74507","api":"https://cve.report/api/cve/CVE-2026-74507.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74507","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74507"},"summary":{"title":"Bluetooth: HIDP: validate numbered report payloads","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: HIDP: validate numbered report payloads\n\nWhen hidp_get_raw_report() waits for a numbered report,\nhidp_process_data() compares the expected report number with skb->data[0].\nA connected HIDP peer can reply with only a DATA transaction header,\nleaving the skb empty after the header is removed.\n\nKMSAN reports an uninitialized-value use in hidp_session_run(), with the\nvalue originating in __alloc_skb() through vhci_write(). The transaction\nheader checks remove the empty-frame reports, but this report remains until\nthe payload check is added.\n\nThe comparison can also consume a peer-controlled byte beyond the declared\nL2CAP PDU. A DATA | FEATURE response followed by an extra 0x01 byte made\nthe current code accept that byte as report ID 1 and complete\nHIDIOCGFEATURE with a zero-byte result. With this change the malformed\nresponse is rejected with -EIO, while a subsequent valid response still\nsucceeds.\n\nRequire a payload byte before comparing a numbered report ID. Unnumbered\nreports continue to accept an empty payload.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 13:17:55","updated_at":"2026-08-15 13:17:55"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/34f53d27b81a16a02828c8fdfa4e02badc326f17","name":"https://git.kernel.org/stable/c/34f53d27b81a16a02828c8fdfa4e02badc326f17","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/27cc0e603355c585f1e5da8398faa4d36d498188","name":"https://git.kernel.org/stable/c/27cc0e603355c585f1e5da8398faa4d36d498188","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b7ad105d46acd828e424454815e4cd31069e047a","name":"https://git.kernel.org/stable/c/b7ad105d46acd828e424454815e4cd31069e047a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9c841f59e10b5d75c398a3fc6b2da448d2a2276b","name":"https://git.kernel.org/stable/c/9c841f59e10b5d75c398a3fc6b2da448d2a2276b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7e7162427659b70ea17cd41b1f79e2e64c246690","name":"https://git.kernel.org/stable/c/7e7162427659b70ea17cd41b1f79e2e64c246690","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74507","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74507","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0ff1731a1ae51e8e48cd559d70db536281c47f8e b7ad105d46acd828e424454815e4cd31069e047a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0ff1731a1ae51e8e48cd559d70db536281c47f8e 7e7162427659b70ea17cd41b1f79e2e64c246690 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0ff1731a1ae51e8e48cd559d70db536281c47f8e 27cc0e603355c585f1e5da8398faa4d36d498188 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0ff1731a1ae51e8e48cd559d70db536281c47f8e 9c841f59e10b5d75c398a3fc6b2da448d2a2276b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0ff1731a1ae51e8e48cd559d70db536281c47f8e 34f53d27b81a16a02828c8fdfa4e02badc326f17 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2.6.39","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 2.6.39 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.151 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.103 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.44 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.8 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc6 * 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":["net/bluetooth/hidp/core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b7ad105d46acd828e424454815e4cd31069e047a","status":"affected","version":"0ff1731a1ae51e8e48cd559d70db536281c47f8e","versionType":"git"},{"lessThan":"7e7162427659b70ea17cd41b1f79e2e64c246690","status":"affected","version":"0ff1731a1ae51e8e48cd559d70db536281c47f8e","versionType":"git"},{"lessThan":"27cc0e603355c585f1e5da8398faa4d36d498188","status":"affected","version":"0ff1731a1ae51e8e48cd559d70db536281c47f8e","versionType":"git"},{"lessThan":"9c841f59e10b5d75c398a3fc6b2da448d2a2276b","status":"affected","version":"0ff1731a1ae51e8e48cd559d70db536281c47f8e","versionType":"git"},{"lessThan":"34f53d27b81a16a02828c8fdfa4e02badc326f17","status":"affected","version":"0ff1731a1ae51e8e48cd559d70db536281c47f8e","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/bluetooth/hidp/core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.39"},{"lessThan":"2.6.39","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.151","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.103","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.44","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc6","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.151","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.103","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.44","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.8","versionStartIncluding":"2.6.39","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc6","versionStartIncluding":"2.6.39","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: HIDP: validate numbered report payloads\n\nWhen hidp_get_raw_report() waits for a numbered report,\nhidp_process_data() compares the expected report number with skb->data[0].\nA connected HIDP peer can reply with only a DATA transaction header,\nleaving the skb empty after the header is removed.\n\nKMSAN reports an uninitialized-value use in hidp_session_run(), with the\nvalue originating in __alloc_skb() through vhci_write(). The transaction\nheader checks remove the empty-frame reports, but this report remains until\nthe payload check is added.\n\nThe comparison can also consume a peer-controlled byte beyond the declared\nL2CAP PDU. A DATA | FEATURE response followed by an extra 0x01 byte made\nthe current code accept that byte as report ID 1 and complete\nHIDIOCGFEATURE with a zero-byte result. With this change the malformed\nresponse is rejected with -EIO, while a subsequent valid response still\nsucceeds.\n\nRequire a payload byte before comparing a numbered report ID. Unnumbered\nreports continue to accept an empty payload."}],"providerMetadata":{"dateUpdated":"2026-08-15T12:27:30.683Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/b7ad105d46acd828e424454815e4cd31069e047a"},{"url":"https://git.kernel.org/stable/c/7e7162427659b70ea17cd41b1f79e2e64c246690"},{"url":"https://git.kernel.org/stable/c/27cc0e603355c585f1e5da8398faa4d36d498188"},{"url":"https://git.kernel.org/stable/c/9c841f59e10b5d75c398a3fc6b2da448d2a2276b"},{"url":"https://git.kernel.org/stable/c/34f53d27b81a16a02828c8fdfa4e02badc326f17"}],"title":"Bluetooth: HIDP: validate numbered report payloads","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74507","datePublished":"2026-08-15T12:27:30.683Z","dateReserved":"2026-08-15T05:44:03.908Z","dateUpdated":"2026-08-15T12:27:30.683Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 13:17:55","lastModifiedDate":"2026-08-15 13:17:55","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74507","Ordinal":"1","Title":"Bluetooth: HIDP: validate numbered report payloads","CVE":"CVE-2026-74507","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74507","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: HIDP: validate numbered report payloads\n\nWhen hidp_get_raw_report() waits for a numbered report,\nhidp_process_data() compares the expected report number with skb->data[0].\nA connected HIDP peer can reply with only a DATA transaction header,\nleaving the skb empty after the header is removed.\n\nKMSAN reports an uninitialized-value use in hidp_session_run(), with the\nvalue originating in __alloc_skb() through vhci_write(). The transaction\nheader checks remove the empty-frame reports, but this report remains until\nthe payload check is added.\n\nThe comparison can also consume a peer-controlled byte beyond the declared\nL2CAP PDU. A DATA | FEATURE response followed by an extra 0x01 byte made\nthe current code accept that byte as report ID 1 and complete\nHIDIOCGFEATURE with a zero-byte result. With this change the malformed\nresponse is rejected with -EIO, while a subsequent valid response still\nsucceeds.\n\nRequire a payload byte before comparing a numbered report ID. Unnumbered\nreports continue to accept an empty payload.","Type":"Description","Title":"Bluetooth: HIDP: validate numbered report payloads"}]}}}