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authorEric Dumazet <eric.dumazet@gmail.com>2009-08-06 20:27:04 +0000
committerDavid S. Miller <davem@davemloft.net>2009-08-09 21:45:32 -0700
commite84b90ae5eb3c112d1f208964df1d8156a538289 (patch)
tree3f02cd521e1c59292db7d1962e262048760411cf
parentb79a79471bd31d737c939a6ddc347417047b4320 (diff)
can: Fix raw_getname() leak
raw_getname() can leak 10 bytes of kernel memory to user (two bytes hole between can_family and can_ifindex, 8 bytes at the end of sockaddr_can structure) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Oliver Hartkopp <oliver@hartkopp.net> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/can/raw.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/can/raw.c b/net/can/raw.c
index f4cc44548bda..db3152df7d2b 100644
--- a/net/can/raw.c
+++ b/net/can/raw.c
@@ -401,6 +401,7 @@ static int raw_getname(struct socket *sock, struct sockaddr *uaddr,
if (peer)
return -EOPNOTSUPP;
+ memset(addr, 0, sizeof(*addr));
addr->can_family = AF_CAN;
addr->can_ifindex = ro->ifindex;