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wifi: iwlwifi: Validate slots_num before allocating memory

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Verify slots_num is valid in iwl_txq_alloc()

Signed-off-by: Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230614123447.90be48017c1b.I880e451e137c5cd688d5f38b573b0dbf352762b3@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Anjaneyulu 2023-06-14 12:41:36 +03:00 committed by Johannes Berg
parent aedb2b38ad
commit 2e0ce1de20
1 changed files with 4 additions and 1 deletions
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5
drivers/net/wireless/intel/iwlwifi/queue/tx.c
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@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause // 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 <net/tso.h>
#include <linux/tcp.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; size_t tb0_buf_sz;
int i; int i;
if (WARN_ONCE(slots_num <= 0, "Invalid slots num:%d\n", slots_num))
return -EINVAL;
if (WARN_ON(txq->entries || txq->tfds)) if (WARN_ON(txq->entries || txq->tfds))
return -EINVAL; return -EINVAL;