diff options
| author | Mathias Krause <[email protected]> | 2012-08-15 11:31:47 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2012-08-15 21:36:30 -0700 |
| commit | 3f68ba07b1da811bf383b4b701b129bfcb2e4988 (patch) | |
| tree | a6632984849d7101a95ba8649db505b293507a00 | |
| parent | e15ca9a0ef9a86f0477530b0f44a725d67f889ee (diff) | |
Bluetooth: HCI - Fix info leak via getsockname()
The HCI code fails to initialize the hci_channel member of struct
sockaddr_hci and that for leaks two bytes kernel stack via the
getsockname() syscall. Initialize hci_channel with 0 to avoid the
info leak.
Signed-off-by: Mathias Krause <[email protected]>
Cc: Marcel Holtmann <[email protected]>
Cc: Gustavo Padovan <[email protected]>
Cc: Johan Hedberg <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
| -rw-r--r-- | net/bluetooth/hci_sock.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index a27bbc3cd4b7..19fdac78e555 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -694,6 +694,7 @@ static int hci_sock_getname(struct socket *sock, struct sockaddr *addr, *addr_len = sizeof(*haddr); haddr->hci_family = AF_BLUETOOTH; haddr->hci_dev = hdev->id; + haddr->hci_channel= 0; release_sock(sk); return 0; |