diff options
| author | Vasiliy Kulikov <segoon@openwall.com> | 2011-02-10 20:59:42 +0300 |
|---|---|---|
| committer | Gustavo F. Padovan <padovan@profusion.mobi> | 2011-02-11 20:21:29 +0300 |
| commit | e3fb592b15602196d38b225dc78aab8d631a5f89 (patch) | |
| tree | e105066cfe0e797fe02d47eae396d934d3c23a18 /net/bluetooth | |
| parent | 6d1d4ea4a82f8c17a3ff7c2f677bc3d41ea7484b (diff) | |
| download | linux-e3fb592b15602196d38b225dc78aab8d631a5f89.tar.xz | |
Bluetooth: l2cap: fix 1 byte infoleak to userspace
Structure l2cap_options has one padding byte between max_tx and
txwin_size fields. This byte in "opts" is copied to userspace
uninitialized.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Diffstat (limited to 'net/bluetooth')
| -rw-r--r-- | net/bluetooth/l2cap_sock.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index adf41692daf3..21f5385ca24d 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -392,6 +392,7 @@ static int l2cap_sock_getsockopt_old(struct socket *sock, int optname, char __us switch (optname) { case L2CAP_OPTIONS: + memset(&opts, 0, sizeof(opts)); opts.imtu = l2cap_pi(sk)->imtu; opts.omtu = l2cap_pi(sk)->omtu; opts.flush_to = l2cap_pi(sk)->flush_to; |