From 114ff4beb99fbe3ef04beea9131f11933d5c9bf6 Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Fri, 17 Apr 2009 21:20:06 +0000 Subject: [PATCH] USB: fix oops in cdc-wdm in case of malformed descriptors upstream commit: e13c594f3a1fc2c78e7a20d1a07974f71e4b448f cdc-wdm needs to ignore extremely malformed descriptors. Signed-off-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman Signed-off-by: Chris Wright --- drivers/usb/class/cdc-wdm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index 5a8ecc045e3fa..874d6a00697e1 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -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; } -- 2.47.2