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* [git:media_stage/master] media: stkwebcam: fix memory leak in stk_camera_probe
@ 2021-07-22  9:40 Mauro Carvalho Chehab
  0 siblings, 0 replies; 3+ messages in thread
From: Mauro Carvalho Chehab @ 2021-07-22  9:40 UTC (permalink / raw)
  To: linuxtv-commits; +Cc: stable, Pavel Skripkin, Hans Verkuil

This is an automatic generated email to let you know that the following patch were queued:

Subject: media: stkwebcam: fix memory leak in stk_camera_probe
Author:  Pavel Skripkin <paskripkin@gmail.com>
Date:    Wed Jul 7 19:54:30 2021 +0200

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>

 drivers/media/usb/stkwebcam/stk-webcam.c | 6 ++++--
 1 file 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);

^ permalink raw reply related	[flat|nested] 3+ messages in thread

* [git:media_stage/master] media: stkwebcam: fix memory leak in stk_camera_probe
@ 2021-07-22 12:01 Mauro Carvalho Chehab
  0 siblings, 0 replies; 3+ messages in thread
From: Mauro Carvalho Chehab @ 2021-07-22 12:01 UTC (permalink / raw)
  To: linuxtv-commits; +Cc: Hans Verkuil, Pavel Skripkin, stable

This is an automatic generated email to let you know that the following patch were queued:

Subject: media: stkwebcam: fix memory leak in stk_camera_probe
Author:  Pavel Skripkin <paskripkin@gmail.com>
Date:    Wed Jul 7 19:54:30 2021 +0200

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>

 drivers/media/usb/stkwebcam/stk-webcam.c | 6 ++++--
 1 file 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);

^ permalink raw reply related	[flat|nested] 3+ messages in thread

* [git:media_stage/master] media: stkwebcam: fix memory leak in stk_camera_probe
@ 2021-07-22  8:18 Mauro Carvalho Chehab
  0 siblings, 0 replies; 3+ messages in thread
From: Mauro Carvalho Chehab @ 2021-07-22  8:18 UTC (permalink / raw)
  To: linuxtv-commits; +Cc: Hans Verkuil, Pavel Skripkin, stable

This is an automatic generated email to let you know that the following patch were queued:

Subject: media: stkwebcam: fix memory leak in stk_camera_probe
Author:  Pavel Skripkin <paskripkin@gmail.com>
Date:    Wed Jul 7 19:54:30 2021 +0200

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>

 drivers/media/usb/stkwebcam/stk-webcam.c | 6 ++++--
 1 file 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);

^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2021-07-22 12:02 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2021-07-22  9:40 [git:media_stage/master] media: stkwebcam: fix memory leak in stk_camera_probe Mauro Carvalho Chehab
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2021-07-22 12:01 Mauro Carvalho Chehab
2021-07-22  8:18 Mauro Carvalho Chehab

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