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authorJakub Kicinski <kuba@kernel.org>2021-06-18 19:47:02 -0700
committerJakub Kicinski <kuba@kernel.org>2021-06-18 19:47:02 -0700
commitadc2e56ebe6377f5c032d96aee0feac30a640453 (patch)
treef8937ffc72e1991418b0d54a0672766237855c94 /net/ipv4/icmp.c
parent4bea7207a80c8bba3b3eb5b84c407b162968475f (diff)
parent9ed13a17e38e0537e24d9b507645002bf8d0201f (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Trivial conflicts in net/can/isotp.c and tools/testing/selftests/net/mptcp/mptcp_connect.sh scaled_ppm_to_ppb() was moved from drivers/ptp/ptp_clock.c to include/linux/ptp_clock_kernel.h in -next so re-apply the fix there. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4/icmp.c')
-rw-r--r--net/ipv4/icmp.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 2e09d62d59e3..0a57f1892e7e 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -759,6 +759,13 @@ void __icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info,
icmp_param.data_len = room;
icmp_param.head_len = sizeof(struct icmphdr);
+ /* if we don't have a source address at this point, fall back to the
+ * dummy address instead of sending out a packet with a source address
+ * of 0.0.0.0
+ */
+ if (!fl4.saddr)
+ fl4.saddr = htonl(INADDR_DUMMY);
+
icmp_push_reply(&icmp_param, &fl4, &ipc, &rt);
ende:
ip_rt_put(rt);