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| author | Jaganath Kanakkassery <jaganath.k@samsung.com> | 2013-06-21 19:55:11 +0530 |
|---|---|---|
| committer | Gustavo Padovan <gustavo.padovan@collabora.co.uk> | 2013-07-25 19:52:30 +0100 |
| commit | da9910ac4a816b4340944c78d94c02a35527db46 (patch) | |
| tree | 6619c33b02bc5f5d80ca1b1a7a2ef506e03c0852 /net/bluetooth | |
| parent | 075163bbb0f51174359947e1bce84f5edb23f21e (diff) | |
| download | linux-da9910ac4a816b4340944c78d94c02a35527db46.tar.gz linux-da9910ac4a816b4340944c78d94c02a35527db46.tar.bz2 linux-da9910ac4a816b4340944c78d94c02a35527db46.zip | |
Bluetooth: Fix invalid length check in l2cap_information_rsp()
The length check is invalid since the length varies with type of
info response.
This was introduced by the commit cb3b3152b2f5939d67005cff841a1ca748b19888
Because of this, l2cap info rsp is not handled and command reject is sent.
> ACL data: handle 11 flags 0x02 dlen 16
L2CAP(s): Info rsp: type 2 result 0
Extended feature mask 0x00b8
Enhanced Retransmission mode
Streaming mode
FCS Option
Fixed Channels
< ACL data: handle 11 flags 0x00 dlen 10
L2CAP(s): Command rej: reason 0
Command not understood
Cc: stable@vger.kernel.org
Signed-off-by: Jaganath Kanakkassery <jaganath.k@samsung.com>
Signed-off-by: Chan-Yeol Park <chanyeol.park@samsung.com>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Diffstat (limited to 'net/bluetooth')
| -rw-r--r-- | net/bluetooth/l2cap_core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 4be6a264b475..68843a28a7af 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -4333,7 +4333,7 @@ static inline int l2cap_information_rsp(struct l2cap_conn *conn, struct l2cap_info_rsp *rsp = (struct l2cap_info_rsp *) data; u16 type, result; - if (cmd_len != sizeof(*rsp)) + if (cmd_len < sizeof(*rsp)) return -EPROTO; type = __le16_to_cpu(rsp->type); |