Description
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[].
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
baac6276c0a9f36f1fe1f00590ef00d2ba5ba626 to < 312c4450fe23014665c163f480edd5ad2e27bbb8affectedbaac6276c0a9f36f1fe1f00590ef00d2ba5ba626 to < 9dd13a8641de79bc1bc93da55cdd35259a002683affectedbaac6276c0a9f36f1fe1f00590ef00d2ba5ba626 to < 476c9262b430c38c6a701a3b8176a3f48689085baffectedbaac6276c0a9f36f1fe1f00590ef00d2ba5ba626 to < 6fba3c3d48c927e55611a0f5ea34da88138ed0ffaffectedbaac6276c0a9f36f1fe1f00590ef00d2ba5ba626 to < 834cf890d2c3d29cbfa1ee2376c40469c28ec297affectedbaac6276c0a9f36f1fe1f00590ef00d2ba5ba626 to < 1019028eb124564cf7bca58a16f1df8a1ca30726affectedbaac6276c0a9f36f1fe1f00590ef00d2ba5ba626 to < 21c254202f9d78abe0fcd642a92966deb92bd226affectedbaac6276c0a9f36f1fe1f00590ef00d2ba5ba626 to < 129fa608b6ad08b8ab7178eeb2ec272c993aacccaffected
Linux Linux
Default version status: affected
5.8affected0 to < 5.8unaffected5.10.253 to ≤ 5.10.*unaffected5.15.203 to ≤ 5.15.*unaffected6.1.168 to ≤ 6.1.*unaffected6.6.131 to ≤ 6.6.*unaffected6.12.80 to ≤ 6.12.*unaffected6.18.21 to ≤ 6.18.*unaffected6.19.11 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/312c4450fe23014665c163f480edd5ad2e27bbb8 ↗
- https://git.kernel.org/stable/c/9dd13a8641de79bc1bc93da55cdd35259a002683 ↗
- https://git.kernel.org/stable/c/476c9262b430c38c6a701a3b8176a3f48689085b ↗
- https://git.kernel.org/stable/c/6fba3c3d48c927e55611a0f5ea34da88138ed0ff ↗
- https://git.kernel.org/stable/c/834cf890d2c3d29cbfa1ee2376c40469c28ec297 ↗
- https://git.kernel.org/stable/c/1019028eb124564cf7bca58a16f1df8a1ca30726 ↗
- https://git.kernel.org/stable/c/21c254202f9d78abe0fcd642a92966deb92bd226 ↗
- https://git.kernel.org/stable/c/129fa608b6ad08b8ab7178eeb2ec272c993aaccc ↗