From 8cc953562e2e293575514c40806eee438a967364 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Mon, 4 Apr 2016 15:11:50 -0400 Subject: [PATCH] af_packet: tone down the Tx-ring unsupported spew. [ Upstream commit 6ae81ced378820c4c6434b1dedba14a7122df310 ] Trinity and other fuzzers can hit this WARN on far too easily, resulting in a tainted kernel that hinders automated fuzzing. Replace it with a rate-limited printk. Signed-off-by: Dave Jones Acked-by: Daniel Borkmann Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- net/packet/af_packet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 5d8988185c59..0dd9fc3f57e8 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -4176,7 +4176,7 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u, /* Opening a Tx-ring is NOT supported in TPACKET_V3 */ if (!closing && tx_ring && (po->tp_version > TPACKET_V2)) { - WARN(1, "Tx-ring is not supported.\n"); + net_warn_ratelimited("Tx-ring is not supported.\n"); goto out; }