Provide references for CVE-2019-16921.
Where can I find more information about CVE-2019-16921?
References are available at: https://github.com/torvalds/linux/commit/df7e40425813c50cd252e6f5e348a81ef1acae56, https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=df7e40425813c50cd252e6f5e348a81ef1acae56.