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USB: gadget: validate interface OS descriptor requests
authorSzymon Heidrich <szymon.heidrich@gmail.com>
Mon, 24 Jan 2022 11:14:00 +0000 (12:14 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 16 Feb 2022 11:54:28 +0000 (12:54 +0100)
commit22ec1004728548598f4f5b4a079a7873409eacfd
tree92bd33d231467b4d9cd65679d29aa423673b01a5tree | snapshot
parent351159167cd8593311482148f64ca14715984544commit | diff
USB: gadget: validate interface OS descriptor requests

commit 75e5b4849b81e19e9efe1654b30d7f3151c33c2c upstream.

Stall the control endpoint in case provided index exceeds array size of
MAX_CONFIG_INTERFACES or when the retrieved function pointer is null.

Signed-off-by: Szymon Heidrich <szymon.heidrich@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/gadget/composite.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git