tcp: Sanitize CMSG flags and reserved args in tcp_zerocopy_receive.
Explicitly define reserved field and require it and any subsequent fields to be zero-valued for now. Additionally, limit the valid CMSG flags that tcp_zerocopy_receive accepts. Fixes: 7eeba170 ("tcp: Add receive timestamp support for receive zerocopy.") Signed-off-by:Arjun Roy <arjunroy@google.com> Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
Soheil Hassas Yeganeh <soheil@google.com> Suggested-by:
David Ahern <dsahern@gmail.com> Suggested-by:
Leon Romanovsky <leon@kernel.org> Suggested-by:
Jakub Kicinski <kuba@kernel.org> Acked-by:
Jakub Kicinski <kuba@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
parent
9fbb4a7a
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