This is a note to let you know that I've just added the patch titled
Bluetooth: HCI - Fix info leak in getsockopt(HCI_FILTER)
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
bluetooth-hci-fix-info-leak-in-getsockopt-hci_filter.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 816c81b7dc99c52dc28f7dc6fc5ab43f44783673 Mon Sep 17 00:00:00 2001
From: Mathias Krause <[email protected]>
Date: Wed, 15 Aug 2012 11:31:46 +0000
Subject: Bluetooth: HCI - Fix info leak in getsockopt(HCI_FILTER)
From: Mathias Krause <[email protected]>
[ Upstream commit e15ca9a0ef9a86f0477530b0f44a725d67f889ee ]
The HCI code fails to initialize the two padding bytes of struct
hci_ufilter before copying it to userland -- that for leaking two
bytes kernel stack. Add an explicit memset(0) before filling the
structure 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]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/bluetooth/hci_sock.c | 1 +
1 file changed, 1 insertion(+)
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -1016,6 +1016,7 @@ static int hci_sock_getsockopt(struct so
{
struct hci_filter *f = &hci_pi(sk)->filter;
+ memset(&uf, 0, sizeof(uf));
uf.type_mask = f->type_mask;
uf.opcode = f->opcode;
uf.event_mask[0] = *((u32 *) f->event_mask + 0);
Patches currently in stable-queue which might be from [email protected] are
queue-3.4/ipvs-fix-info-leak-in-getsockopt-ip_vs_so_get_timeout.patch
queue-3.4/bluetooth-rfcomm-fix-info-leak-via-getsockname.patch
queue-3.4/bluetooth-hci-fix-info-leak-in-getsockopt-hci_filter.patch
queue-3.4/bluetooth-hci-fix-info-leak-via-getsockname.patch
queue-3.4/atm-fix-info-leak-in-getsockopt-so_atmpvc.patch
queue-3.4/llc-fix-info-leak-via-getsockname.patch
queue-3.4/net-fix-info-leak-in-compat-dev_ifconf.patch
queue-3.4/bluetooth-rfcomm-fix-info-leak-in-getsockopt-bt_security.patch
queue-3.4/atm-fix-info-leak-via-getsockname.patch
queue-3.4/bluetooth-l2cap-fix-info-leak-via-getsockname.patch
queue-3.4/dccp-fix-info-leak-via-getsockopt-dccp_sockopt_ccid_tx_info.patch
queue-3.4/bluetooth-rfcomm-fix-info-leak-in-ioctl-rfcommgetdevlist.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
