Consider Patch - Bluetooth: hci_event: Fix not using key encryption size when its known

Hello!

Description:

Kernel 6.14.x introduced a regression for Bluetooth. Devices like the ThinkPad Bluetooth Laser Mouse, Dualsense and Dualshock controllers aren't able to connect anymore.

Additional info:

• package version(s): >= linux-6.14.4
• link to upstream bug report, if any: https://bugzilla.kernel.org/show_bug.cgi?id=220061
• link to downstream discussion: https://bbs.archlinux.org/viewtopic.php?id=305211
• Regression caused by: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=d4ca2fd218caafbf50e3343ba1260c6a23b5676a
• Upstream fix in Bluetooth tree: https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git/commit/?id=9840f8ecc9105ba6e2355d2f792c5f6c78905101

Steps to reproduce:

1. Boot
2. Login (e.g. virtual terminal or GDM)
3. Connect to already paired device (e.g. ThinkPad Bluetooth Laser Mouse)

Can we consider to apply the patch?

Thank you.