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authorDavid Howells <dhowells@redhat.com>2025-05-27 16:01:43 +0100
committerPaolo Abeni <pabeni@redhat.com>2025-05-29 12:03:21 +0200
commitfd579a2ebbe4b7e6b388915a50d904e772a35c61 (patch)
tree6c237455686e5e034336a37282eb53a013fe6c54 /net
parentgve: Fix RX_BUFFERS_POSTED stat to report per-queue fill_cnt (diff)
downloadlinux-rng-fd579a2ebbe4b7e6b388915a50d904e772a35c61.tar.xz
linux-rng-fd579a2ebbe4b7e6b388915a50d904e772a35c61.zip
rxrpc: Fix return from none_validate_challenge()
Fix the return value of none_validate_challenge() to be explicitly true (which indicates the source packet should simply be discarded) rather than implicitly true (because rxrpc_abort_conn() always returns -EPROTO which gets converted to true). Note that this change doesn't change the behaviour of the code (which is correct by accident) and, in any case, we *shouldn't* get a CHALLENGE packet to an rxnull connection (ie. no security). Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://lists.infradead.org/pipermail/linux-afs/2025-April/009738.html Signed-off-by: David Howells <dhowells@redhat.com> cc: Marc Dionne <marc.dionne@auristor.com> cc: Jakub Kicinski <kuba@kernel.org> cc: "David S. Miller" <davem@davemloft.net> cc: Eric Dumazet <edumazet@google.com> cc: Paolo Abeni <pabeni@redhat.com> cc: Simon Horman <horms@kernel.org> cc: linux-afs@lists.infradead.org cc: netdev@vger.kernel.org Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/10720.1748358103@warthog.procyon.org.uk Fixes: 5800b1cf3fd8 ("rxrpc: Allow CHALLENGEs to the passed to the app for a RESPONSE") Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net')
-rw-r--r--net/rxrpc/insecure.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/net/rxrpc/insecure.c b/net/rxrpc/insecure.c
index 1f7c136d6d0e..0a260df45d25 100644
--- a/net/rxrpc/insecure.c
+++ b/net/rxrpc/insecure.c
@@ -45,8 +45,9 @@ static void none_free_call_crypto(struct rxrpc_call *call)
static bool none_validate_challenge(struct rxrpc_connection *conn,
struct sk_buff *skb)
{
- return rxrpc_abort_conn(conn, skb, RX_PROTOCOL_ERROR, -EPROTO,
- rxrpc_eproto_rxnull_challenge);
+ rxrpc_abort_conn(conn, skb, RX_PROTOCOL_ERROR, -EPROTO,
+ rxrpc_eproto_rxnull_challenge);
+ return true;
}
static int none_sendmsg_respond_to_challenge(struct sk_buff *challenge,