Public bug reported:
[ Impact ]
On some machine with Mediatek USB bluetooth controller, activate
scanning will lead to system hang. This is due to unexpected null
pointer dereference in the set up flow.
[ Fix ]
Cherry-pick one commit from mainline linux:
61c5a3def90a (Bluetooth: btmtk: adjust the position to init iso data
anchor)
[ Test ]
1. Boot into the kenrel
2. Run bluetoothctl
3. In the bluetoothctl shell, run "scan on"
4. The MTK bluetooth usb device should be able to scan, and system should not
hang.
** Affects: linux-oem-6.11 (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2092473
Title:
[SRU] Fix system hang issue caused by the btmtk driver
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