CVE-2026-74300
CVE CVE-2026-74300EUVD EUVD-2026-59447Published 2026-08-15T05:58:03.000ZLast changed 2026-08-17T05:45:37.000ZCVSS 8.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci: validate codec capability element length Read Local Codec Capabilities returns a sequence of capability elements. Each element starts with a one-byte length followed by that many payload bytes. hci_read_codec_capabilities() checks that the skb contains the length byte, but then validates only caps->len against the remaining skb length. A malformed controller response with one remaining byte and caps->len set to one passes that check even though the element needs two bytes. The parser then records a two-byte capability and copies one byte beyond the advertised response payload into the codec list. Validate the full element size, including the length byte, before adding it to the accumulated capability length. This preserves all well-formed capability elements and drops only truncated controller responses.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux 8961987f3f5fa2f2618e72304d013c8dd5e604a6 <fc97fc8cf7f53fd3619db63e09050d20a3a0c4b1; patch: 0; patch: 6.6.145; patch: 6.12.97; 5.16; patch: 6.1.178; 8961987f3f5fa2f2618e72304d013c8dd5e604a6 <4bc16db0f11918e07edf9fdcda4a30cf4c9df45c; patch: 6.18.40; patch: 7.2; 8961987f3f5fa2f2618e72304d013c8dd5e604a6 <c38fbcdc407925c7088f7e5f11c1fff73d2d35a2; 8961987f3f5fa2f2618e72304d013c8dd5e604a6 <ec4d352747a62c1082f16c11a74b37d6eb85a5a3; patch: 7.1.5; 8961987f3f5fa2f2618e72304d013c8dd5e604a6 <f2ad01f55e07f9531efcea736087e6b8658a3440; 8961987f3f5fa2f2618e72304d013c8dd5e604a6 <290b36f9d1eb9b2f72b40d826f26b4a182ab15f7
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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