From: Wenwen Wang wenwen@cs.uga.edu
[ Upstream commit fcd5ce4b3936242e6679875a4d3c3acfc8743e15 ]
In dvb_create_media_entity(), 'dvbdev->entity' is allocated through kzalloc(). Then, 'dvbdev->pads' is allocated through kcalloc(). However, if kcalloc() fails, the allocated 'dvbdev->entity' is not deallocated, leading to a memory leak bug. To fix this issue, free 'dvbdev->entity' before returning -ENOMEM.
Signed-off-by: Wenwen Wang wenwen@cs.uga.edu Signed-off-by: Sean Young sean@mess.org Signed-off-by: Mauro Carvalho Chehab mchehab+samsung@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/dvb-core/dvbdev.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c index 41aad0f99d73c..ba3c68fb9676b 100644 --- a/drivers/media/dvb-core/dvbdev.c +++ b/drivers/media/dvb-core/dvbdev.c @@ -316,8 +316,10 @@ static int dvb_create_media_entity(struct dvb_device *dvbdev, if (npads) { dvbdev->pads = kcalloc(npads, sizeof(*dvbdev->pads), GFP_KERNEL); - if (!dvbdev->pads) + if (!dvbdev->pads) { + kfree(dvbdev->entity); return -ENOMEM; + } }
switch (type) {