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| author | Oliver Neukum <oliver@neukum.org> | 2009-04-04 09:25:15 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-04-17 10:50:24 -0700 |
| commit | e13c594f3a1fc2c78e7a20d1a07974f71e4b448f (patch) | |
| tree | 8492d168693800146ca08333a5431ae15ed2efa0 | |
| parent | f05932c0caf40c43af8a2c21adf7c46a00c436c4 (diff) | |
| download | linux-e13c594f3a1fc2c78e7a20d1a07974f71e4b448f.tar.gz linux-e13c594f3a1fc2c78e7a20d1a07974f71e4b448f.tar.bz2 linux-e13c594f3a1fc2c78e7a20d1a07974f71e4b448f.zip | |
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>
| -rw-r--r-- | 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 3771d6e6d0cc..34e6108e1d42 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; } |