From 52fbd46e2b7bc185628e94178cc3ec8e2a340b40 Mon Sep 17 00:00:00 2001 From: "mspector@google.com" Date: Mon, 8 Feb 2016 10:56:13 -0800 Subject: IOMX.cpp uninitialized pointer in BnOMX::onTransact This can lead to local code execution in media server. Fix initializes the pointer and checks the error conditions before returning Bug: 26403627 Change-Id: I7fa90682060148448dba01d6acbe3471d1ddb500 --- media/libmedia/IOMX.cpp | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'media/libmedia') diff --git a/media/libmedia/IOMX.cpp b/media/libmedia/IOMX.cpp index 5423c2a..8f55eb9 100644 --- a/media/libmedia/IOMX.cpp +++ b/media/libmedia/IOMX.cpp @@ -446,7 +446,7 @@ public: remote()->transact(CONFIGURE_VIDEO_TUNNEL_MODE, data, &reply); status_t err = reply.readInt32(); - if (sidebandHandle) { + if (err == OK && sidebandHandle) { *sidebandHandle = (native_handle_t *)reply.readNativeHandle(); } return err; @@ -948,11 +948,13 @@ status_t BnOMX::onTransact( OMX_BOOL tunneled = (OMX_BOOL)data.readInt32(); OMX_U32 audio_hw_sync = data.readInt32(); - native_handle_t *sideband_handle; + native_handle_t *sideband_handle = NULL; status_t err = configureVideoTunnelMode( node, port_index, tunneled, audio_hw_sync, &sideband_handle); reply->writeInt32(err); - reply->writeNativeHandle(sideband_handle); + if(err == OK){ + reply->writeNativeHandle(sideband_handle); + } return NO_ERROR; } -- cgit v1.1 From 7227fe0eb793c3e9e313df7454862d360c9bd360 Mon Sep 17 00:00:00 2001 From: Jeff Tinker Date: Mon, 8 Feb 2016 17:52:25 -0800 Subject: Fix info leak vulnerability of IDrm bug: 26323455 Change-Id: I25bb30d3666ab38d5150496375ed2f55ecb23ba8 --- media/libmedia/IDrm.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'media/libmedia') diff --git a/media/libmedia/IDrm.cpp b/media/libmedia/IDrm.cpp index b1ad0c5..7c709cd 100644 --- a/media/libmedia/IDrm.cpp +++ b/media/libmedia/IDrm.cpp @@ -658,7 +658,7 @@ status_t BnDrm::onTransact( Vector request; String8 defaultUrl; - DrmPlugin::KeyRequestType keyRequestType; + DrmPlugin::KeyRequestType keyRequestType = DrmPlugin::kKeyRequestType_Unknown; status_t result = getKeyRequest(sessionId, initData, mimeType, keyType, optionalParameters, request, defaultUrl, -- cgit v1.1 From 1a5ab71d6a43a53535f37648b09d22b741265bb2 Mon Sep 17 00:00:00 2001 From: "mspector@google.com" Date: Mon, 8 Feb 2016 17:07:06 -0800 Subject: 3 uninitialized variables in IOMX.cpp Uninitialized MetadataBufferType pointer in case: SET_INPUT_SURFACE STORE_META_DATA_IN_BUFFERS CREATE_INPUT_SURFACE Fix: initialize them to kMetadataBufferTypeInvalid Bug: 26324358 Change-Id: Ib3bcac9bedc98bc65efa39f67cdbffbd90b374c9 --- media/libmedia/IOMX.cpp | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) (limited to 'media/libmedia') diff --git a/media/libmedia/IOMX.cpp b/media/libmedia/IOMX.cpp index 8f55eb9..07f3697 100644 --- a/media/libmedia/IOMX.cpp +++ b/media/libmedia/IOMX.cpp @@ -844,9 +844,13 @@ status_t BnOMX::onTransact( OMX_U32 port_index = data.readInt32(); sp bufferProducer; - MetadataBufferType type; + MetadataBufferType type = kMetadataBufferTypeInvalid; status_t err = createInputSurface(node, port_index, &bufferProducer, &type); + if ((err != OK) && (type == kMetadataBufferTypeInvalid)) { + android_errorWriteLog(0x534e4554, "26324358"); + } + reply->writeInt32(type); reply->writeInt32(err); @@ -886,9 +890,13 @@ status_t BnOMX::onTransact( sp bufferConsumer = interface_cast(data.readStrongBinder()); - MetadataBufferType type; + MetadataBufferType type = kMetadataBufferTypeInvalid; status_t err = setInputSurface(node, port_index, bufferConsumer, &type); + if ((err != OK) && (type == kMetadataBufferTypeInvalid)) { + android_errorWriteLog(0x534e4554, "26324358"); + } + reply->writeInt32(type); reply->writeInt32(err); return NO_ERROR; @@ -914,8 +922,13 @@ status_t BnOMX::onTransact( OMX_U32 port_index = data.readInt32(); OMX_BOOL enable = (OMX_BOOL)data.readInt32(); - MetadataBufferType type; + MetadataBufferType type = kMetadataBufferTypeInvalid; status_t err = storeMetaDataInBuffers(node, port_index, enable, &type); + + if ((err != OK) && (type == kMetadataBufferTypeInvalid)) { + android_errorWriteLog(0x534e4554, "26324358"); + } + reply->writeInt32(type); reply->writeInt32(err); -- cgit v1.1 From a685aea781026471ad82f5729198c60bcb4f8fe9 Mon Sep 17 00:00:00 2001 From: "mspector@google.com" Date: Fri, 19 Feb 2016 12:10:48 -0800 Subject: Fixing safteynet logging bug introduced in ag/862848 We moved the safteynet logging into storeMetaDataInBuffers_l Bug: 26324358 Change-Id: I2171742b53192ebb71d546bcb8970bb3c68f366f --- media/libmedia/IOMX.cpp | 4 ---- 1 file changed, 4 deletions(-) (limited to 'media/libmedia') diff --git a/media/libmedia/IOMX.cpp b/media/libmedia/IOMX.cpp index 07f3697..97b7ff0 100644 --- a/media/libmedia/IOMX.cpp +++ b/media/libmedia/IOMX.cpp @@ -925,10 +925,6 @@ status_t BnOMX::onTransact( MetadataBufferType type = kMetadataBufferTypeInvalid; status_t err = storeMetaDataInBuffers(node, port_index, enable, &type); - if ((err != OK) && (type == kMetadataBufferTypeInvalid)) { - android_errorWriteLog(0x534e4554, "26324358"); - } - reply->writeInt32(type); reply->writeInt32(err); -- cgit v1.1 From d3e5eca42feaa337cd3aa36b7eaa2b7aadbbab15 Mon Sep 17 00:00:00 2001 From: Marco Nelissen Date: Mon, 22 Feb 2016 13:05:15 -0800 Subject: Clear allocation to avoid info leak Bug: 26914474 Change-Id: Ie1a86e86d78058d041149fe599a4996e7f8185cf --- media/libmedia/IOMX.cpp | 59 +++++++++++++++++++++++++++---------------------- 1 file changed, 32 insertions(+), 27 deletions(-) (limited to 'media/libmedia') diff --git a/media/libmedia/IOMX.cpp b/media/libmedia/IOMX.cpp index 97b7ff0..865d575 100644 --- a/media/libmedia/IOMX.cpp +++ b/media/libmedia/IOMX.cpp @@ -692,34 +692,39 @@ status_t BnOMX::onTransact( size_t size = data.readInt64(); - void *params = malloc(size); - data.read(params, size); - - status_t err; - switch (code) { - case GET_PARAMETER: - err = getParameter(node, index, params, size); - break; - case SET_PARAMETER: - err = setParameter(node, index, params, size); - break; - case GET_CONFIG: - err = getConfig(node, index, params, size); - break; - case SET_CONFIG: - err = setConfig(node, index, params, size); - break; - case SET_INTERNAL_OPTION: - { - InternalOptionType type = - (InternalOptionType)data.readInt32(); - - err = setInternalOption(node, index, type, params, size); - break; + status_t err = NO_MEMORY; + void *params = calloc(size, 1); + if (params) { + err = data.read(params, size); + if (err != OK) { + android_errorWriteLog(0x534e4554, "26914474"); + } else { + switch (code) { + case GET_PARAMETER: + err = getParameter(node, index, params, size); + break; + case SET_PARAMETER: + err = setParameter(node, index, params, size); + break; + case GET_CONFIG: + err = getConfig(node, index, params, size); + break; + case SET_CONFIG: + err = setConfig(node, index, params, size); + break; + case SET_INTERNAL_OPTION: + { + InternalOptionType type = + (InternalOptionType)data.readInt32(); + + err = setInternalOption(node, index, type, params, size); + break; + } + + default: + TRESPASS(); + } } - - default: - TRESPASS(); } reply->writeInt32(err); -- cgit v1.1 From 5db73079cbd9bbe5bf2c6fb7d029537a085170ca Mon Sep 17 00:00:00 2001 From: Marco Nelissen Date: Thu, 18 Feb 2016 08:25:47 -0800 Subject: Get service by value instead of reference to prevent a cleared service binder from being used. Bug: 26040840 Change-Id: Ifb5483c55b172d3553deb80dbe27f2204b86ecdb --- media/libmedia/mediametadataretriever.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'media/libmedia') diff --git a/media/libmedia/mediametadataretriever.cpp b/media/libmedia/mediametadataretriever.cpp index 9a76f58..08a9e6a 100644 --- a/media/libmedia/mediametadataretriever.cpp +++ b/media/libmedia/mediametadataretriever.cpp @@ -35,7 +35,7 @@ Mutex MediaMetadataRetriever::sServiceLock; sp MediaMetadataRetriever::sService; sp MediaMetadataRetriever::sDeathNotifier; -const sp& MediaMetadataRetriever::getService() +const sp MediaMetadataRetriever::getService() { Mutex::Autolock lock(sServiceLock); if (sService == 0) { @@ -62,7 +62,7 @@ const sp& MediaMetadataRetriever::getService() MediaMetadataRetriever::MediaMetadataRetriever() { ALOGV("constructor"); - const sp& service(getService()); + const sp service(getService()); if (service == 0) { ALOGE("failed to obtain MediaMetadataRetrieverService"); return; -- cgit v1.1