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(parent: cd14440) | patch
USB: cdc-wdm: fix buffer overflow
authorOliver Neukum <oneukum@suse.de>
Tue, 12 Mar 2013 13:52:42 +0000 (14:52 +0100)
committerBen Hutchings <ben@decadent.org.uk>
Wed, 20 Mar 2013 15:03:35 +0000 (15:03 +0000)
commit8e535446a78958888b16db9d619d0f60c1950622
treec1089553dcba1a81c3562546a5bba9b7ed6739cftree | snapshot
parentcd1444055c4a0e6af16751335828d2db5ddf919acommit | diff
USB: cdc-wdm: fix buffer overflow

commit c0f5ecee4e741667b2493c742b60b6218d40b3aa upstream.

The buffer for responses must not overflow.
If this would happen, set a flag, drop the data and return
an error after user space has read all remaining data.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
drivers/usb/class/cdc-wdm.c diff | blob | history
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