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Bluetooth: check L2CAP info_rsp ident and state

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Information requests/responses are unbound to L2CAP channel. Patch
fixes issue arising when two devices connects at the same time to
each other. This way we do not process out of the context messages.
We are safe dropping info_rsp since info_timer is left running.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@nokia.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
This commit is contained in:
Andrei Emeltchenko 2011-03-25 11:31:41 +02:00 committed by Gustavo F. Padovan
parent d1010240fa
commit e90165be9a
1 changed files with 5 additions and 0 deletions
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5
net/bluetooth/l2cap_core.c
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@ -2461,6 +2461,11 @@ static inline int l2cap_information_rsp(struct l2cap_conn *conn, struct l2cap_cm
BT_DBG("type 0x%4.4x result 0x%2.2x", type, result);
/* L2CAP Info req/rsp are unbound to channels, add extra checks */
if (cmd->ident != conn->info_ident ||
conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE)
return 0;
del_timer(&conn->info_timer);
if (result != L2CAP_IR_SUCCESS) {