[PATCH] binder: make sure fd closes complete
christian.brauner at ubuntu.com
Tue Aug 31 07:24:16 UTC 2021
On Mon, Aug 30, 2021 at 12:51:46PM -0700, Todd Kjos wrote:
> During BC_FREE_BUFFER processing, the BINDER_TYPE_FDA object
> cleanup may close 1 or more fds. The close operations are
> completed using the task work mechanism -- which means the thread
> needs to return to userspace or the file object may never be
> dereferenced -- which can lead to hung processes.
> Force the binder thread back to userspace if an fd is closed during
> BC_FREE_BUFFER handling.
> Signed-off-by: Todd Kjos <tkjos at google.com>
Looks good. Thanks!
Acked-by: Christian Brauner <christian.brauner at ubuntu.com>
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