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(parent: 9f48c23) | patch
USB: CDC ACM: Fix NULL pointer dereference
authorSven Schnelle <svens@stackframe.org>
Fri, 17 Aug 2012 19:43:43 +0000 (21:43 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 14 Sep 2012 17:00:43 +0000 (10:00 -0700)
commit52340b63f6cf9f21051a8f91f42d8ca97415bd1a
tree39d5d66db6e289f6aa5851fb3c471c5671c046f8tree | snapshot
parent9f48c235c9f8e7c13544f4a2d4b9a728cf257f45commit | diff
USB: CDC ACM: Fix NULL pointer dereference

commit 99f347caa4568cb803862730b3b1f1942639523f upstream.

If a device specifies zero endpoints in its interface descriptor,
the kernel oopses in acm_probe(). Even though that's clearly an
invalid descriptor, we should test wether we have all endpoints.
This is especially bad as this oops can be triggered by just
plugging a USB device in.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/class/cdc-acm.c diff | blob | history
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