Commit 2e0ce1de authored by Anjaneyulu's avatar Anjaneyulu Committed by Johannes Berg
Browse files

wifi: iwlwifi: Validate slots_num before allocating memory 



Verify slots_num is valid in iwl_txq_alloc()

Signed-off-by: default avatarAnjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Signed-off-by: default avatarGregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230614123447.90be48017c1b.I880e451e137c5cd688d5f38b573b0dbf352762b3@changeid


Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent aedb2b38

drivers/net/wireless/intel/iwlwifi/queue/tx.c

+4 −1
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause

/*

 * Copyright (C) 2020-2022 Intel Corporation

 * Copyright (C) 2020-2023 Intel Corporation

 */

#include <net/tso.h>

#include <linux/tcp.h>
@@ -1027,6 +1027,9 @@ int iwl_txq_alloc(struct iwl_trans *trans, struct iwl_txq *txq, int slots_num, 
	size_t tb0_buf_sz;

	int i;



	if (WARN_ONCE(slots_num <= 0, "Invalid slots num:%d\n", slots_num))

		return -EINVAL;



	if (WARN_ON(txq->entries || txq->tfds))

		return -EINVAL;