diff options
| author | Pavel Skripkin <paskripkin@gmail.com> | 2021-07-07 20:54:30 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-07-22 15:01:55 +0300 |
| commit | 514e97674400462cc09c459a1ddfb9bf39017223 (patch) | |
| tree | 3abb5ba063365647a3fa5201b183ad855f3d22f1 /drivers/media/usb | |
| parent | 7910c23d704794461aba7a72b07aae582496b781 (diff) | |
| download | linux-514e97674400462cc09c459a1ddfb9bf39017223.tar.xz | |
media: stkwebcam: fix memory leak in stk_camera_probe
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@vger.kernel.org
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media/usb')
| -rw-r--r-- | drivers/media/usb/stkwebcam/stk-webcam.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/media/usb/stkwebcam/stk-webcam.c b/drivers/media/usb/stkwebcam/stk-webcam.c index a45d464427c4..0e231e576dc3 100644 --- a/drivers/media/usb/stkwebcam/stk-webcam.c +++ b/drivers/media/usb/stkwebcam/stk-webcam.c @@ -1346,7 +1346,7 @@ static int stk_camera_probe(struct usb_interface *interface, 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; @@ -1359,10 +1359,12 @@ static int stk_camera_probe(struct usb_interface *interface, 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); |