diff options
| author | Vasiliy Kulikov <segoon@openwall.com> | 2011-03-17 01:40:10 +0000 |
|---|---|---|
| committer | Paul Gortmaker <paul.gortmaker@windriver.com> | 2011-06-26 12:47:21 -0400 |
| commit | e0843d17d6d9997f23534f1ffe9dafb0d5912636 (patch) | |
| tree | 50fcd25325ff7cb9dc3d43f6d65851791e90f55c /net | |
| parent | 3e3b57978a0e1140d91f09d3a4197b6411b18f12 (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: Paul Gortmaker <paul.gortmaker@windriver.com>
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 728d389975fa..4a392c9e70a7 100644 --- a/net/econet/af_econet.c +++ b/net/econet/af_econet.c @@ -435,10 +435,10 @@ 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); |