Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
044014ce85a17c0b7fab8e5df0925792010c29b2 to < 8de58bfa26e028f99271dde5a92107cd07f5e063affected044014ce85a17c0b7fab8e5df0925792010c29b2 to < 400267bab0f4076088e163e58cad2bb41c3cf5e7affected044014ce85a17c0b7fab8e5df0925792010c29b2 to < 8881daaafadbe7fb2b7341d16a3949114409c90caffected044014ce85a17c0b7fab8e5df0925792010c29b2 to < 24b0758193d70da47ef8b979153d2a181dbdf34eaffected044014ce85a17c0b7fab8e5df0925792010c29b2 to < df541cd485ff80a5ddc579d99687bc7506df9851affected
Linux Linux
Default version status: affected
6.6affected0 to < 6.6unaffected6.6.148 to ≤ 6.6.*unaffected6.12.101 to ≤ 6.12.*unaffected6.18.42 to ≤ 6.18.*unaffected7.1.6 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/8de58bfa26e028f99271dde5a92107cd07f5e063 ↗
- https://git.kernel.org/stable/c/400267bab0f4076088e163e58cad2bb41c3cf5e7 ↗
- https://git.kernel.org/stable/c/8881daaafadbe7fb2b7341d16a3949114409c90c ↗
- https://git.kernel.org/stable/c/24b0758193d70da47ef8b979153d2a181dbdf34e ↗
- https://git.kernel.org/stable/c/df541cd485ff80a5ddc579d99687bc7506df9851 ↗