media: cpia2: fix memory leak in cpia2_usb_probe

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[ Upstream commit be8656e62e ]

syzbot reported leak in cpia2 usb driver. The problem was
in invalid error handling.

v4l2_device_register() is called in cpia2_init_camera_struct(), but
all error cases after cpia2_init_camera_struct() did not call the
v4l2_device_unregister()

Reported-by: syzbot+d1e69c888f0d3866ead4@syzkaller.appspotmail.com
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Pavel Skripkin 2021-04-21 21:43:45 +02:00 • committed by Greg Kroah-Hartman

parent e717d6c291

commit 4626df7f65

3 changed files with 20 additions and 6 deletions

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1

drivers/media/usb/cpia2/cpia2.h

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12

drivers/media/usb/cpia2/cpia2_core.c

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13

drivers/media/usb/cpia2/cpia2_usb.c

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