diff options
| author | Alok Kumar <alokkuma@codeaurora.org> | 2018-01-09 12:10:15 +0530 |
|---|---|---|
| committer | snandini <snandini@codeaurora.org> | 2018-01-24 07:19:17 -0800 |
| commit | d56524a3b7973373fb63f667a149aff748e4a217 (patch) | |
| tree | 1dded250b5c3d8692d559450aee6ec5105c6ed3a /core/utils | |
| parent | 6ee38fbb23ec7f34aaa63ad19f28546e3c76ceb1 (diff) | |
qcacld-3.0: Fix buffer overflow in fill_ieee80211_hdr_data
Currently variable pl_msdu_info->num_msdu is from message, and
is used directly as array size. This may cause buffer overflow.
To address this issue add qdf_assert check.
Change-Id: I44e0717c0073f6de20ee91c54f587edcaacd10a4
CRs-Fixed: 2148637
Diffstat (limited to 'core/utils')
| -rw-r--r-- | core/utils/pktlog/pktlog_internal.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/core/utils/pktlog/pktlog_internal.c b/core/utils/pktlog/pktlog_internal.c index aae7d71c0049..c693a1d66521 100644 --- a/core/utils/pktlog/pktlog_internal.c +++ b/core/utils/pktlog/pktlog_internal.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2013-2017 The Linux Foundation. All rights reserved. + * Copyright (c) 2013-2018 The Linux Foundation. All rights reserved. * * Previously licensed under the ISC license by Qualcomm Atheros, Inc. * @@ -276,6 +276,13 @@ fill_ieee80211_hdr_data(struct ol_txrx_pdev_t *txrx_pdev, pl_msdu_info->priv_size = sizeof(uint32_t) * pl_msdu_info->num_msdu + sizeof(uint32_t); + if (pl_msdu_info->num_msdu > MAX_PKT_INFO_MSDU_ID) { + QDF_TRACE(QDF_MODULE_ID_TXRX, QDF_TRACE_LEVEL_ERROR, + "%s: Invalid num_msdu count", + __func__); + qdf_assert(0); + return; + } for (i = 0; i < pl_msdu_info->num_msdu; i++) { /* * Handle big endianness |