Messages in this thread Patch in this message | | | Date | Wed, 29 Apr 2009 15:07:35 -0700 | From | Greg KH <> | Subject | [patch 36/58] USB: fix oops in cdc-wdm in case of malformed descriptors |
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2.6.27-stable review patch. If anyone has any objections, please let us know.
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From: Oliver Neukum <oliver@neukum.org>
upstream commit: e13c594f3a1fc2c78e7a20d1a07974f71e4b448f
cdc-wdm needs to ignore extremely malformed descriptors.
Signed-off-by: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Chris Wright <chrisw@sous-sol.org> --- drivers/usb/class/cdc-wdm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -641,7 +641,7 @@ 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; }
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