commit a5a3ba4d06659f0dd8db83ca17d5e31ea6848a36
author Oliver Neukum <oneukum@suse.de> Wed Jan 28 11:14:55 2015 +0100
committer chrmhoffmann <chrmhoffmann@gmail.com> Sat Aug 04 10:49:29 2018 +0200
tree 5761c2df4b7c8b4c6d03b2774c21a4a47fe31932
parent 98e2602e55e9b1c7f055e75fd1141dd1b5e67edc

cdc-acm: add sanity checks

commit 7e860a6e7aa62b337a61110430cd633db5b0d2dd upstream.

Check the special CDC headers for a plausible minimum length.
Another big operating systems ignores such garbage.

Change-Id: Iae31a871e7782bb800a6d50545b022a7514b1a4a
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Reviewed-by: Adam Lee <adam8157@gmail.com>
Tested-by: Adam Lee <adam8157@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[lizf: Backported to 3.4: adjust context]
Signed-off-by: Zefan Li <lizefan@huawei.com>