From: Dan Carpenter Date: Wed, 14 Jun 2017 09:10:10 +0000 (+0300) Subject: qed: Fix an off by one bug X-Git-Tag: v4.13~415^2~192 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=0331402aeaefe858709b0a4d44ade15f82d3a119;p=mirror_ubuntu-bionic-kernel.git qed: Fix an off by one bug The p_l2_info->pp_qid_usage[] array has "p_l2_info->queues" elements so the > here should be a >= or we write beyond the end of the array. Fixes: bbe3f233ec5e ("qed: Assign a unique per-queue index to queue-cid") Signed-off-by: Dan Carpenter Acked-by: Yuval Mintz Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/qlogic/qed/qed_l2.c b/drivers/net/ethernet/qlogic/qed/qed_l2.c index cb8b05dbfc6e..e57699bfbdfa 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_l2.c +++ b/drivers/net/ethernet/qlogic/qed/qed_l2.c @@ -161,7 +161,7 @@ static bool qed_eth_queue_qid_usage_add(struct qed_hwfn *p_hwfn, mutex_lock(&p_l2_info->lock); - if (queue_id > p_l2_info->queues) { + if (queue_id >= p_l2_info->queues) { DP_NOTICE(p_hwfn, "Requested to increase usage for qzone %04x out of %08x\n", queue_id, p_l2_info->queues);