From: Pavel Skripkin <paskripkin@xxxxxxxxx>
commit 514e97674400462cc09c459a1ddfb9bf39017223 upstream.
My local syzbot instance hit memory leak in usb_set_configuration().
The problem was in unputted usb interface. In case of errors after
usb_get_intf() the reference should be putted to correclty free memory
allocated for this interface.
Fixes: ec16dae5453e ("V4L/DVB (7019): V4L: add support for Syntek DC1125 webcams")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Pavel Skripkin <paskripkin@xxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/media/usb/stkwebcam/stk-webcam.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/media/usb/stkwebcam/stk-webcam.c
+++ b/drivers/media/usb/stkwebcam/stk-webcam.c
@@ -1355,7 +1355,7 @@ static int stk_camera_probe(struct usb_i
if (!dev->isoc_ep) {
pr_err("Could not find isoc-in endpoint\n");
err = -ENODEV;
- goto error;
+ goto error_put;
}
dev->vsettings.palette = V4L2_PIX_FMT_RGB565;
dev->vsettings.mode = MODE_VGA;
@@ -1368,10 +1368,12 @@ static int stk_camera_probe(struct usb_i
err = stk_register_video_device(dev);
if (err)
- goto error;
+ goto error_put;
return 0;
+error_put:
+ usb_put_intf(interface);
error:
v4l2_ctrl_handler_free(hdl);
v4l2_device_unregister(&dev->v4l2_dev);
