glibc : Fix CVE-2021-3998

Upstream-Status: Backport [https://sourceware.org/git/?p=glibc.git;a=commit;h=062ff490c1467059f6cd64bb9c3d85f6cc6cf97a]
Upstream-Status: Backport [https://sourceware.org/git/?p=glibc.git;a=commit;h=f7a79879c0b2bef0dadd6caaaeeb0d26423e04e5

]

Signed-off-by: pgowda <pgowda.cve@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>