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USB: fix oops in cdc-wdm in case of malformed descriptors

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cdc-wdm needs to ignore extremely malformed descriptors.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Oliver Neukum 2009-04-04 09:25:15 +02:00 • committed by Greg Kroah-Hartman
commit e13c594f3a
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/class/cdc-wdm.c
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@ -652,7 +652,7 @@ next_desc:
iface = &intf->altsetting[0];
ep = &iface->endpoint[0].desc;
if (!usb_endpoint_is_int_in(ep)) {
if (!ep || !usb_endpoint_is_int_in(ep)) {
rv = -EINVAL;
goto err;
}