diff options
| author | Eric Dumazet <edumazet@google.com> | 2012-09-24 11:00:11 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-09-25 00:51:53 +0400 |
| commit | 3e10986d1d698140747fcfc2761ec9cb64c1d582 (patch) | |
| tree | ee37bd030acf7dce85c0a1866bab6700bc71d8f0 /net/core | |
| parent | 69190e67d4fac49e2f6ea22f46780d0c712214b8 (diff) | |
| download | linux-3e10986d1d698140747fcfc2761ec9cb64c1d582.tar.xz | |
net: guard tcp_set_keepalive() to tcp sockets
Its possible to use RAW sockets to get a crash in
tcp_set_keepalive() / sk_reset_timer()
Fix is to make sure socket is a SOCK_STREAM one.
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/sock.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/core/sock.c b/net/core/sock.c index 305792076121..a6000fbad294 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -691,7 +691,8 @@ set_rcvbuf: case SO_KEEPALIVE: #ifdef CONFIG_INET - if (sk->sk_protocol == IPPROTO_TCP) + if (sk->sk_protocol == IPPROTO_TCP && + sk->sk_type == SOCK_STREAM) tcp_set_keepalive(sk, valbool); #endif sock_valbool_flag(sk, SOCK_KEEPOPEN, valbool); |