[PATCH net] sctp: fix return value check in __sctp_rcv_asconf_lookup

As Ben Hutchings noticed, this check should have been inverted: the call
returns true in case of success.

Reported-by: Ben Hutchings <redacted>
Fixes: 0c5dc070ff3d ("sctp: validate from_addr_param return")
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
---
 net/sctp/input.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sctp/input.c b/net/sctp/input.c
index eb3c2a34a31c64d5322f326613f4a4a02f8c902e..5ef86fdb11769d9c8a32219c5c7361fc34217b02 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c

@@ -1203,7 +1203,7 @@ static struct sctp_association *__sctp_rcv_asconf_lookup(
 	if (unlikely(!af))
 		return NULL;
 
-	if (af->from_addr_param(&paddr, param, peer_port, 0))
+	if (!af->from_addr_param(&paddr, param, peer_port, 0))
 		return NULL;
 
 	return __sctp_lookup_association(net, laddr, &paddr, transportp);

-- 
2.31.1

On Tue, Jul 27, 2021 at 10:41 PM Marcelo Ricardo Leitner
[off-list ref] wrote:

Reviewed-by: Xin Long <lucien.xin@gmail.com>

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Tue, 27 Jul 2021 23:40:54 -0300 you wrote:

As Ben Hutchings noticed, this check should have been inverted: the call
returns true in case of success.

Reported-by: Ben Hutchings <redacted>
Fixes: 0c5dc070ff3d ("sctp: validate from_addr_param return")
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>

[...]

Here is the summary with links:
  - [net] sctp: fix return value check in __sctp_rcv_asconf_lookup
    https://git.kernel.org/netdev/net/c/557fb5862c92

You are awesome, thank you!
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