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tls: rx: device: bound the frag walk
We can't do skb_walk_frags() on the input skbs, because the input skbs is really just a pointer to the tcp read queue. We need to bound the "is decrypted" check by the amount of data in the message. Note that the walk in tls_device_reencrypt() is after a CoW so the skb there is safe to walk. Actually in the current implementation it can't have frags at all, but whatever, maybe one day it will. Reported-by: Tariq Toukan <tariqt@nvidia.com> Fixes: 84c61fe ("tls: rx: do not use the standard strparser") Tested-by: Ran Rozenstein <ranro@nvidia.com> Link: https://lore.kernel.org/r/20220809175544.354343-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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