uacce: use q->mapping to replace inode->i_mapping

The inode can be different in a container, for example, a docker and host
both open the same uacce parent device, which uses the same uacce struct
but different inode, so uacce->inode is not enough.

What's worse, when docker stops, the inode will be destroyed as well,
causing use-after-free in uacce_remove.

So use q->mapping to replace uacce->inode->i_mapping.

Signed-off-by: Weili Qian <[email protected]>
Signed-off-by: Zhangfei Gao <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

0 files changed, 0 insertions, 0 deletions