samsung-sm8650/android_kernel_samsung_sm8650-modules
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qcacld-3.0: Fix cdp API null check in wma_is_pkt_drop_candidate()

Procházet zdrojové kódy 
Fix cdp API null check in wma_is_pkt_drop_candidate. Add check
if _last_received is greater than 0 before checking for DOS
attack.

Change-Id: Ic817e9a3d59100be5cb97f833985b7633391e1ca
CRs-Fixed: 1115648
Tento commit je obsažen v:
Krishna Kumaar Natarajan
2017-01-24 18:28:11 -08:00
odevzdal qcabuildsw
rodič 69588ad3f1
revize 3ce25ed456
1 změnil soubory, kde provedl 16 přidání a 9 odebrání
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25
core/wma/src/wma_mgmt.c
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@@ -3114,9 +3114,8 @@ static bool wma_is_pkt_drop_candidate(tp_wma_handle wma_handle,
WMA_LOGE(FL("cdp_peer_last_assoc_received Failed"));
should_drop = true;
goto end;
} else {
if ((qdf_get_system_timestamp() -
*cdp_peer_last_assoc_received(soc, peer)) <
} else if (*ptr > 0) {
if ((qdf_get_system_timestamp() - *ptr) <
WMA_MGMT_FRAME_DETECT_DOS_TIMER) {
WMA_LOGI(FL("Dropping Assoc Req received"));
should_drop = true;
@@ -3126,9 +3125,13 @@ static bool wma_is_pkt_drop_candidate(tp_wma_handle wma_handle,
qdf_get_system_timestamp();
break;
case SIR_MAC_MGMT_DISASSOC:
if (*cdp_peer_last_disassoc_received(soc, peer)) {
if ((qdf_get_system_timestamp() -
*cdp_peer_last_disassoc_received(soc, peer)) <
ptr = cdp_peer_last_disassoc_received(soc, peer);
if (ptr == NULL) {
WMA_LOGE(FL("cdp_peer_last_disassoc_received Failed"));
should_drop = true;
goto end;
} else if (*ptr > 0) {
if ((qdf_get_system_timestamp() - *ptr) <
WMA_MGMT_FRAME_DETECT_DOS_TIMER) {
WMA_LOGI(FL("Dropping DisAssoc received"));
should_drop = true;
@@ -3138,9 +3141,13 @@ static bool wma_is_pkt_drop_candidate(tp_wma_handle wma_handle,
qdf_get_system_timestamp();
break;
case SIR_MAC_MGMT_DEAUTH:
if (*cdp_peer_last_deauth_received(soc, peer)) {
if ((qdf_get_system_timestamp() -
*cdp_peer_last_deauth_received(soc, peer)) <
ptr = cdp_peer_last_deauth_received(soc, peer);
if (ptr == NULL) {
WMA_LOGE(FL("cdp_peer_last_deauth_received Failed"));
should_drop = true;
goto end;
} else if (*ptr > 0) {
if ((qdf_get_system_timestamp() - *ptr) <
WMA_MGMT_FRAME_DETECT_DOS_TIMER) {
WMA_LOGI(FL("Dropping Deauth received"));
should_drop = true;