diff mbox series

[bpf,v3,3/6] bpf, sockmap: Use truesize with sk_rmem_schedule()

Message ID 160556570616.73229.17003722112077507863.stgit@john-XPS-13-9370 (mailing list archive)
State Accepted
Commit 70796fb751f1d34cc650e640572a174faf009cd4
Delegated to: BPF
Headers show
Series sockmap fixes | expand

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netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 1 this patch: 1
netdev/kdoc success Errors and warnings before: 0 this patch: 0
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netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 8 lines checked
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netdev/stable success Stable not CCed

Commit Message

John Fastabend Nov. 16, 2020, 10:28 p.m. UTC 
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>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
---
 net/core/skmsg.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/net/core/skmsg.c b/net/core/skmsg.c
index fe44280c033e..d09426ce4af3 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;
 	}