CVE-2026-68339
CVE CVE-2026-68339EUVD EUVD-2026-55440Published 2026-08-10T12:03:15.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btusb: validate Realtek vendor event length btusb_recv_event_realtek() reads the event code at data[0] and the Realtek subevent code at data[2] before deciding whether to consume a vendor event as a coredump. For example, the two-byte event ff 00 contains a complete vendor-event header declaring zero parameters. The old classifier still reads a nonexistent third byte and can misclassify the event as a coredump if the adjacent byte is 0x34. Require the HCI event header and first parameter to be present before inspecting the Realtek subevent code. Short events continue through the normal HCI receive path, which owns their protocol validation.
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 044014ce85a17c0b7fab8e5df0925792010c29b2 <8de58bfa26e028f99271dde5a92107cd07f5e063; patch: 7.2-rc5; patch: 7.1.6; 044014ce85a17c0b7fab8e5df0925792010c29b2 <df541cd485ff80a5ddc579d99687bc7506df9851; 044014ce85a17c0b7fab8e5df0925792010c29b2 <24b0758193d70da47ef8b979153d2a181dbdf34e; 044014ce85a17c0b7fab8e5df0925792010c29b2 <400267bab0f4076088e163e58cad2bb41c3cf5e7; patch: 6.18.42; 044014ce85a17c0b7fab8e5df0925792010c29b2 <8881daaafadbe7fb2b7341d16a3949114409c90c; 6.6; patch: 6.6.148; patch: 0; patch: 6.12.101
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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