3.2.93-rc1 review patch. If anyone has any objections, please let me know.
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From: Eric Dumazet <edumazet@xxxxxxxxxx>
commit 77d4b1d36926a9b8387c6b53eeba42bcaaffcea3 upstream.
Alexander reported various KASAN messages triggered in recent kernels
The problem is that ping sockets should not use udp_poll() in the first
place, and recent changes in UDP stack finally exposed this old bug.
Fixes: c319b4d76b9e ("net: ipv4: add IPPROTO_ICMP socket kind")
Fixes: 6d0bfe226116 ("net: ipv6: Add IPv6 support to the ping socket.")
Signed-off-by: Eric Dumazet <edumazet@xxxxxxxxxx>
Reported-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Cc: Solar Designer <solar@xxxxxxxxxxxx>
Cc: Vasiliy Kulikov <segoon@xxxxxxxxxxxx>
Cc: Lorenzo Colitti <lorenzo@xxxxxxxxxx>
Acked-By: Lorenzo Colitti <lorenzo@xxxxxxxxxx>
Tested-By: Lorenzo Colitti <lorenzo@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
[bwh: Backported to 3.2:
- Drop IPv6 bits
- Adjust context]
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1032,7 +1032,7 @@ static struct inet_protosw inetsw_array[
.type = SOCK_DGRAM,
.protocol = IPPROTO_ICMP,
.prot = &ping_prot,
- .ops = &inet_dgram_ops,
+ .ops = &inet_sockraw_ops,
.no_check = UDP_CSUM_DEFAULT,
.flags = INET_PROTOSW_REUSE,
},