3.16.81-rc1 review patch. If anyone has any objections, please let me know.
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From: Eric Dumazet edumazet@google.com
commit 7c1306723ee916ea9f1fa7d9e4c7a6d029ca7aaf upstream.
Lorenzo reported that we could not properly find v4mapped sockets in inet_diag_find_one_icsk(). This patch fixes the issue.
Reported-by: Lorenzo Colitti lorenzo@google.com Signed-off-by: Eric Dumazet edumazet@google.com Acked-by: Lorenzo Colitti lorenzo@google.com Signed-off-by: David S. Miller davem@davemloft.net Cc: Arnd Bergmann arnd@arndb.de [bwh: Backported to 3.16: adjust context] Signed-off-by: Ben Hutchings ben@decadent.org.uk --- --- a/net/ipv4/inet_diag.c +++ b/net/ipv4/inet_diag.c @@ -318,12 +318,18 @@ int inet_diag_dump_one_icsk(struct inet_ } #if IS_ENABLED(CONFIG_IPV6) else if (req->sdiag_family == AF_INET6) { - sk = inet6_lookup(net, hashinfo, - (struct in6_addr *)req->id.idiag_dst, - req->id.idiag_dport, - (struct in6_addr *)req->id.idiag_src, - req->id.idiag_sport, - req->id.idiag_if); + if (ipv6_addr_v4mapped((struct in6_addr *)req->id.idiag_dst) && + ipv6_addr_v4mapped((struct in6_addr *)req->id.idiag_src)) + sk = inet_lookup(net, hashinfo, req->id.idiag_dst[3], + req->id.idiag_dport, req->id.idiag_src[3], + req->id.idiag_sport, req->id.idiag_if); + else + sk = inet6_lookup(net, hashinfo, + (struct in6_addr *)req->id.idiag_dst, + req->id.idiag_dport, + (struct in6_addr *)req->id.idiag_src, + req->id.idiag_sport, + req->id.idiag_if); } #endif else {