{"apiVersion":"1.0","identifier":"CVE-2026-74507","description":"In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HIDP: validate numbered report payloads When hidp_get_raw_report() waits for a numbered report, hidp_process_data() compares the expected report number with skb->data[0]. A connected HIDP peer can reply with only a DATA transaction header, leaving the skb empty after the header is removed. KMSAN reports an uninitialized-value use in hidp_session_run(), with the value originating in __alloc_skb() through vhci_write(). The transaction header checks remove the empty-frame reports, but this report remains until the payload check is added. The comparison can also consume a peer-controlled byte beyond the declared L2CAP PDU. A DATA | FEATURE response followed by an extra 0x01 byte made the current code accept that byte as report ID 1 and complete HIDIOCGFEATURE with a zero-byte result. With this change the malformed response is rejected with -EIO, while a subsequent valid response still succeeds. Require a payload byte before comparing a numbered report ID. Unnumbered reports continue to accept an empty payload.","publishedAt":"2026-08-15T13:17:55","lastModifiedAt":"2026-08-19T17:21:07","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74507","cvssScore":7.1,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","epssProbability":0.00242,"riskScore":0.73,"affectedProduct":"linux","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74507","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74507","en":"https://www.redsauce.net/en/cves/CVE-2026-74507","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74507","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74507","de":"https://www.redsauce.net/de/cves/CVE-2026-74507","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74507","el":"https://www.redsauce.net/el/cves/CVE-2026-74507"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74507"}}