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authorJohan Hovold <johan@kernel.org>2019-12-10 12:25:59 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-12-10 13:11:22 +0100
commit3c11c4bed02b202e278c0f5c319ae435d7fb9815 (patch)
tree01b8d56944b991275a638e3b13eee5ae602a6202 /drivers/usb/misc
parent59920635b89d74b9207ea803d5e91498d39e8b69 (diff)
USB: adutux: fix interface sanity check
Make sure to use the current alternate setting when verifying the interface descriptors to avoid binding to an invalid interface. Failing to do so could cause the driver to misbehave or trigger a WARN() in usb_submit_urb() that kernels with panic_on_warn set would choke on. Fixes: 03270634e242 ("USB: Add ADU support for Ontrak ADU devices") Cc: stable <stable@vger.kernel.org> # 2.6.19 Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191210112601.3561-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/misc')
-rw-r--r--drivers/usb/misc/adutux.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index 6f5edb9fc61e..d8d157c4c271 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -669,7 +669,7 @@ static int adu_probe(struct usb_interface *interface,
init_waitqueue_head(&dev->read_wait);
init_waitqueue_head(&dev->write_wait);
- res = usb_find_common_endpoints_reverse(&interface->altsetting[0],
+ res = usb_find_common_endpoints_reverse(interface->cur_altsetting,
NULL, NULL,
&dev->interrupt_in_endpoint,
&dev->interrupt_out_endpoint);