From 78f3ff524fca63e7d2a57149a34ade23d2c12798 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 3 Dec 2018 17:50:11 +0300 Subject: mailbox: ti-msgmgr: Off by one in ti_msgmgr_of_xlate() The > comparison should be >= or we access one element beyond the end of the array. (The inst->qinsts[] array is allocated in the ti_msgmgr_probe() function and it has ->num_valid_queues elements.) Fixes: a2b79838b891 ("mailbox: ti-msgmgr: Add support for Secure Proxy") Signed-off-by: Dan Carpenter Acked-by: Nishanth Menon Signed-off-by: Jassi Brar --- drivers/mailbox/ti-msgmgr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/mailbox') diff --git a/drivers/mailbox/ti-msgmgr.c b/drivers/mailbox/ti-msgmgr.c index 713d701b6568..6f6addd51d14 100644 --- a/drivers/mailbox/ti-msgmgr.c +++ b/drivers/mailbox/ti-msgmgr.c @@ -547,7 +547,7 @@ static struct mbox_chan *ti_msgmgr_of_xlate(struct mbox_controller *mbox, } if (d->is_sproxy) { - if (req_pid > d->num_valid_queues) + if (req_pid >= d->num_valid_queues) goto err; qinst = &inst->qinsts[req_pid]; return qinst->chan; -- cgit