From: John Fastabend john.fastabend@gmail.com
[ Upstream commit 70796fb751f1d34cc650e640572a174faf009cd4 ]
We use skb->size with sk_rmem_scheduled() which is not correct. Instead use truesize to align with socket and tcp stack usage of sk_rmem_schedule.
Suggested-by: Daniel Borkman daniel@iogearbox.net Signed-off-by: John Fastabend john.fastabend@gmail.com Signed-off-by: Daniel Borkmann daniel@iogearbox.net Reviewed-by: Jakub Sitnicki jakub@cloudflare.com Link: https://lore.kernel.org/bpf/160556570616.73229.17003722112077507863.stgit@jo... Signed-off-by: Sasha Levin sashal@kernel.org --- net/core/skmsg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/core/skmsg.c b/net/core/skmsg.c index 4fad59ee3df0b..ddb1b7d94c998 100644 --- a/net/core/skmsg.c +++ b/net/core/skmsg.c @@ -411,7 +411,7 @@ static int sk_psock_skb_ingress(struct sk_psock *psock, struct sk_buff *skb) msg = kzalloc(sizeof(*msg), __GFP_NOWARN | GFP_ATOMIC); if (unlikely(!msg)) return -EAGAIN; - if (!sk_rmem_schedule(sk, skb, skb->len)) { + if (!sk_rmem_schedule(sk, skb, skb->truesize)) { kfree(msg); return -EAGAIN; }