tls: rx: decrypt into a fresh skb
We currently CoW Rx skbs whenever we can't decrypt to a user space buffer. The skbs can be enormous (64kB) and CoW does a linear alloc which has a strong chance of failing under memory pressure. Or even without, skb_cow_data() assumes GFP_ATOMIC. Allocate a new frag'd skb and decrypt into it. We finally take advantage of the decrypted skb getting returned via darg. Signed-off-by:Jakub Kicinski <kuba@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
parent
cbbdee99
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