diff options
| author | Vasiliy Kulikov <segoon@openwall.com> | 2011-03-17 01:40:10 +0000 |
|---|---|---|
| committer | Willy Tarreau <w@1wt.eu> | 2011-04-30 16:53:31 +0200 |
| commit | 5ec5648c0aa9f796189582e8feb8b78486032aae (patch) | |
| tree | 77f7dd041607372c057af02164d767157c105077 | |
| parent | 65912d4568812ba346ed5c68687338bac121e269 (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>
| -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 2aa17865853..dc11c44467e 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); |