Gitweb: http://git.kernel.org/linus/e13c594f3a1fc2c78e7a20d1a07974f71e4b448f
Commit: e13c594f3a1fc2c78e7a20d1a07974f71e4b448f
Parent: f05932c0caf40c43af8a2c21adf7c46a00c436c4
Author: Oliver Neukum <oliver@neukum.org>
AuthorDate: Sat Apr 4 09:25:15 2009 +0200
Committer: Greg Kroah-Hartman <gregkh@suse.de>
CommitDate: Fri Apr 17 10:50:24 2009 -0700
USB: fix oops in cdc-wdm in case of malformed descriptors
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>
---
drivers/usb/class/cdc-wdm.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 3771d6e..34e6108 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;
}
--
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