AZL-83240
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-83240.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-83240
- Upstream
- Published
- 2026-04-22T14:16:47Z
- Modified
- 2026-08-28T17:47:43Z
- Summary
- CVE-2026-31497 affecting package kernel for versions less than 6.6.134.1-2
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: btusb: clamp SCO altsetting table indices
btusb_work() maps the number of active SCO links to USB alternate settings through a three-entry lookup table when CVSD traffic uses transparent voice settings. The lookup currently indexes alts[] with data->sco_num - 1 without first constraining sco_num to the number of available table entries.
While the table only defines alternate settings for up to three SCO links, data->sco_num comes from hci_conn_num() and is used directly. Cap the lookup to the last table entry before indexing it so the driver keeps selecting the highest supported alternate setting without reading past alts[].
- References