[PATCH 6.1.y 0/2] Bluetooth: backport CVE-2023-53762 to 6.1.y

[Artem Dinaburg <artem@trailofbits.com>]

Hi Greg, Sasha, and Bluetooth maintainers,

I am backporting CVEss still missing from 6.1.y.
This pair handles CVE-2023-53762 in disconnect-all cleanup. The
second patch is the immediate upstream liveness follow-up to the UAF fix,
so I kept the two together.

Both changes are already inherited by v6.6 and every later mainline
release.

Could you please queue the pair for 6.1.y?

Thanks,
Artem Dinaburg

AI assistance: An LLM helped find the missing CVE fix, adapt
it, and prepare the draft; I reviewed the code and build output.

Luiz Augusto von Dentz (1):
  Bluetooth: hci_sync: Fix UAF in hci_disconnect_all_sync

Pauli Virtanen (1):
  Bluetooth: hci_sync: always check if connection is alive before
    deleting

 net/bluetooth/hci_sync.c | 58 +++++++++++++++++++++++++---------------
 1 file changed, 37 insertions(+), 21 deletions(-)

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2.39.5