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(parent: 83957df) | 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>
Sat, 18 Aug 2012 00:55:46 +0000 (17:55 -0700)
commit99f347caa4568cb803862730b3b1f1942639523f
treeeea4cff2cddd658d93beca0a46f31be807b8b3fatree | snapshot (tar.gz zip)
parent83957df21dd94655d2b026e0944a69ff37b83988commit | diff
USB: CDC ACM: Fix NULL pointer dereference

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>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/class/cdc-acm.c diff | blob | blame | history