UPSTREAM: ALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devices

commit b909df18 upstream.

A bogus device can provide a bNumConfigurations value that exceeds the
initial value used in usb_get_configuration for allocating dev->config.

This can lead to out-of-bounds accesses later, e.g. in
usb_destroy_configuration.

Bug: 382243530
Signed-off-by: Benoît Sevens <bsevens@google.com>
Fixes: 1da177e4 ("Linux-2.6.12-rc2")
Cc: stable@kernel.org
Link: https://patch.msgid.link/20241120124144.3814457-1-bsevens@google.com


Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit b8f8b81d)
Signed-off-by: Lee Jones <joneslee@google.com>
Change-Id: I1aa1a442a5c87116200dcab02f84e1bd48f86bb5