diff options
| author | Vasiliy Kulikov <segoon@openwall.com> | 2011-03-17 01:40:10 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-04-14 16:53:39 -0700 |
| commit | d343ebc44f5ae510e97c9e9f0f915a1e987f10d3 (patch) | |
| tree | 6259c63e73eed48c12aae99edb5071d08ab7c093 /net | |
| parent | 48a129af149aee88f9ae803adf5078ae993c11f3 (diff) | |
econet: 4 byte infoleak to the network
commit 67c5c6cb8129c595f21e88254a3fc6b3b841ae8e upstream.
struct aunhdr has 4 padding bytes between 'pad' and 'handle' fields on
x86_64. These bytes are not initialized in the variable 'ah' before
sending 'ah' to the network. This leads to 4 bytes kernel stack
infoleak.
This bug was introduced before the git epoch.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Acked-by: Phil Blundell <philb@gnu.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'net')
| -rw-r--r-- | net/econet/af_econet.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c index 85672e7cb69c..56be0d4a8020 100644 --- a/net/econet/af_econet.c +++ b/net/econet/af_econet.c @@ -428,10 +428,10 @@ static int econet_sendmsg(struct kiocb *iocb, struct socket *sock, udpdest.sin_addr.s_addr = htonl(network | addr.station); } + memset(&ah, 0, sizeof(ah)); ah.port = port; ah.cb = cb & 0x7f; ah.code = 2; /* magic */ - ah.pad = 0; /* tack our header on the front of the iovec */ size = sizeof(struct aunhdr); |