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Message-Id: <20230511012034.902782-2-kuba@kernel.org> Date: Wed, 10 May 2023 18:20:28 -0700 From: Jakub Kicinski <kuba@...nel.org> To: tariqt@...dia.com Cc: netdev@...r.kernel.org, Jakub Kicinski <kuba@...nel.org> Subject: [RFC / RFT net 1/7] tls: rx: device: fix checking decryption status skb->len covers the entire skb, including the frag_list. In fact we're guaranteed that rxm->full_len <= skb->len, so since the change under Fixes we were not checking decrypt status of any skb but the first. Note that the skb_pagelen() added here may feel a bit costly, but it's removed by subsequent fixes, anyway. Reported-by: Tariq Toukan <tariqt@...dia.com> Fixes: 86b259f6f888 ("tls: rx: device: bound the frag walk") Signed-off-by: Jakub Kicinski <kuba@...nel.org> --- net/tls/tls_device.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c index a7cc4f9faac2..3b87c7b04ac8 100644 --- a/net/tls/tls_device.c +++ b/net/tls/tls_device.c @@ -1012,7 +1012,7 @@ int tls_device_decrypted(struct sock *sk, struct tls_context *tls_ctx) struct sk_buff *skb_iter; int left; - left = rxm->full_len - skb->len; + left = rxm->full_len + rxm->offset - skb_pagelen(skb); /* Check if all the data is decrypted already */ skb_iter = skb_shinfo(skb)->frag_list; while (skb_iter && left > 0) { -- 2.40.1
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