Messages in this thread | | | Date | Tue, 1 Dec 2020 11:19:43 +0100 | From | Cornelia Huck <> | Subject | Re: [PATCH] s390: cio: fix use-after-free in ccw_device_destroy_console |
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On Tue, 1 Dec 2020 14:31:50 +0800 Qinglang Miao <miaoqinglang@huawei.com> wrote:
> put_device calls release function which do kfree() inside. > So following use of sch&cdev would cause use-after-free bugs. > > Fix these by simply adjusting the position of put_device. > > Fixes: 37db8985b211 ("s390/cio: add basic protected virtualization support") > Reported-by: Hulk Robot <hulkci@huawei.com> > Suggested-by: Cornelia Huck <cohuck@redhat.com> > Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com> > --- > This patch is indeed a v2 of older one. Considering that the > patch's name has changed, I think a normal prefix 'PATCH' is > better. > > drivers/s390/cio/device.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-)
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
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