{"id":"CVE-2026-74507","revision":"742b621d53f0443783db28886e9a5ed9","records":[{"revision":"742b621d53f0443783db28886e9a5ed9","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-74507","aliases":[],"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":0,"publishedAt":"2026-08-15T12:27:30.683+00:00","modifiedAt":"2026-10-16T19:05:51.043+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                        \"net/bluetooth/hidp/core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"0ff1731a1ae51e8e48cd559d70db536281c47f8e\",\n                            \"lessThan\": \"011bf4350d941f1995b2bd4b815ee206cacf2b8e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0ff1731a1ae51e8e48cd559d70db536281c47f8e\",\n                            \"lessThan\": \"689d8bb7fee96b7196b572b015b6055c6616ce0c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0ff1731a1ae51e8e48cd559d70db536281c47f8e\",\n                            \"lessThan\": \"c73beb320f5705e508bf7d385b8cc5ef8d9c8b69\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0ff1731a1ae51e8e48cd559d70db536281c47f8e\",\n                            \"lessThan\": \"b7ad105d46acd828e424454815e4cd31069e047a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0ff1731a1ae51e8e48cd559d70db536281c47f8e\",\n                            \"lessThan\": \"7e7162427659b70ea17cd41b1f79e2e64c246690\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0ff1731a1ae51e8e48cd559d70db536281c47f8e\",\n                            \"lessThan\": \"27cc0e603355c585f1e5da8398faa4d36d498188\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0ff1731a1ae51e8e48cd559d70db536281c47f8e\",\n                            \"lessThan\": \"9c841f59e10b5d75c398a3fc6b2da448d2a2276b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0ff1731a1ae51e8e48cd559d70db536281c47f8e\",\n                            \"lessThan\": \"34f53d27b81a16a02828c8fdfa4e02badc326f17\",\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                        \"net/bluetooth/hidp/core.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2.6.39\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"2.6.39\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.265\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.216\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.183\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.151\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.103\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.44\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.8\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","score":7.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/011bf4350d941f1995b2bd4b815ee206cacf2b8e","https://git.kernel.org/stable/c/689d8bb7fee96b7196b572b015b6055c6616ce0c","https://git.kernel.org/stable/c/c73beb320f5705e508bf7d385b8cc5ef8d9c8b69","https://git.kernel.org/stable/c/b7ad105d46acd828e424454815e4cd31069e047a","https://git.kernel.org/stable/c/7e7162427659b70ea17cd41b1f79e2e64c246690","https://git.kernel.org/stable/c/27cc0e603355c585f1e5da8398faa4d36d498188","https://git.kernel.org/stable/c/9c841f59e10b5d75c398a3fc6b2da448d2a2276b","https://git.kernel.org/stable/c/34f53d27b81a16a02828c8fdfa4e02badc326f17"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-74507","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-74507","identifiers":["CVE-2026-74507"]},"retained":false,"historicalAffected":[]}],"coverage":[]}