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https://github.com/Divested-Mobile/DivestOS-Build.git
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176 lines
7.9 KiB
Diff
176 lines
7.9 KiB
Diff
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From 603c2ff8064e479640a45c04f0f9a307e465f63d Mon Sep 17 00:00:00 2001
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From: Ray Essick <essick@google.com>
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Date: Fri, 29 Jun 2018 14:12:19 -0700
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Subject: [PATCH] mm-video-v4l2: Squash below changes
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mm-video-v4l2: Protect buffer access and increase input buffer size
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Protect buffer access for below scenarios:
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*Increase the scope of buf_lock in free_buffer to avoid access
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of freed buffer for both input and output buffers. Also, add check
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before output buffer access.
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*Disallow allocate buffer mode after client has called use buffer.
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Allocate additional 512 bytes of memory for input buffers on top of
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allocation size as per hardware requirement.
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mm-video-v4l2: correct the buffer error flag setting
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The buffer error flag setting is corrected in free_buffer()
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call
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Bug: 64340487
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Test: poc from bug
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Change-Id: I8a28d86135f2fc39a45a6a07355845327dec2dfa
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Merged-In: I32d6cb7f61b873edd567881d1bf3e620cd78e715
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(cherry picked from commit 808b94b164c39d75d78481f301151fc299b201cc)
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---
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.../mm-video-v4l2/vidc/vdec/inc/omx_vdec.h | 3 +-
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.../vidc/vdec/src/omx_vdec_v4l2.cpp | 30 +++++++++++++++----
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2 files changed, 27 insertions(+), 6 deletions(-)
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diff --git a/msm8998/mm-video-v4l2/vidc/vdec/inc/omx_vdec.h b/msm8998/mm-video-v4l2/vidc/vdec/inc/omx_vdec.h
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index 05d6bc777..21f4c20fa 100644
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--- a/msm8998/mm-video-v4l2/vidc/vdec/inc/omx_vdec.h
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+++ b/msm8998/mm-video-v4l2/vidc/vdec/inc/omx_vdec.h
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@@ -1,5 +1,5 @@
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/*--------------------------------------------------------------------------
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-Copyright (c) 2010 - 2016, The Linux Foundation. All rights reserved.
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+Copyright (c) 2010 - 2018, The Linux Foundation. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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@@ -1275,6 +1275,7 @@ class omx_vdec: public qc_omx_component
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}
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};
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client_extradata_info m_client_extradata_info;
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+ bool m_buffer_error;
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};
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#ifdef _MSM8974_
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diff --git a/msm8998/mm-video-v4l2/vidc/vdec/src/omx_vdec_v4l2.cpp b/msm8998/mm-video-v4l2/vidc/vdec/src/omx_vdec_v4l2.cpp
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index 99b0c6e78..cfb72d83b 100644
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--- a/msm8998/mm-video-v4l2/vidc/vdec/src/omx_vdec_v4l2.cpp
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+++ b/msm8998/mm-video-v4l2/vidc/vdec/src/omx_vdec_v4l2.cpp
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@@ -668,7 +668,8 @@ omx_vdec::omx_vdec(): m_error_propogated(false),
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current_perf_level(V4L2_CID_MPEG_VIDC_PERF_LEVEL_NOMINAL),
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secure_scaling_to_non_secure_opb(false),
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m_force_compressed_for_dpb(true),
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- m_is_display_session(false)
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+ m_is_display_session(false),
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+ m_buffer_error(false)
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{
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m_pipe_in = -1;
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m_pipe_out = -1;
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@@ -5823,6 +5824,7 @@ OMX_ERRORTYPE omx_vdec::use_output_buffer(
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eRet = allocate_output_headers();
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if (eRet == OMX_ErrorNone)
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eRet = allocate_extradata();
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+ output_use_buffer = true;
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}
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if (eRet == OMX_ErrorNone) {
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@@ -6245,7 +6247,6 @@ OMX_ERRORTYPE omx_vdec::free_input_buffer(OMX_BUFFERHEADERTYPE *bufferHdr)
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index = bufferHdr - m_inp_mem_ptr;
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DEBUG_PRINT_LOW("Free Input Buffer index = %d",index);
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- auto_lock l(buf_lock);
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bufferHdr->pInputPortPrivate = NULL;
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if (index < drv_ctx.ip_buf.actualcount && drv_ctx.ptr_inputbuffer) {
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@@ -6459,6 +6460,7 @@ OMX_ERRORTYPE omx_vdec::allocate_input_buffer(
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unsigned i = 0;
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unsigned char *buf_addr = NULL;
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int pmem_fd = -1;
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+ unsigned int align_size = 0;
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(void) hComp;
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(void) port;
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@@ -6518,8 +6520,10 @@ OMX_ERRORTYPE omx_vdec::allocate_input_buffer(
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int rc;
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DEBUG_PRINT_LOW("Allocate input Buffer");
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#ifdef USE_ION
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+ align_size = drv_ctx.ip_buf.buffer_size + 512;
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+ align_size = (align_size + drv_ctx.ip_buf.alignment - 1)&(~(drv_ctx.ip_buf.alignment - 1));
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drv_ctx.ip_buf_ion_info[i].ion_device_fd = alloc_map_ion_memory(
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- drv_ctx.ip_buf.buffer_size,drv_ctx.op_buf.alignment,
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+ align_size, drv_ctx.op_buf.alignment,
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&drv_ctx.ip_buf_ion_info[i].ion_alloc_data,
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&drv_ctx.ip_buf_ion_info[i].fd_ion_data, secure_mode ?
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SECURE_FLAGS_INPUT_BUFFER : ION_FLAG_CACHED);
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@@ -7011,6 +7015,10 @@ OMX_ERRORTYPE omx_vdec::allocate_buffer(OMX_IN OMX_HANDLETYPE hC
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eRet = allocate_input_buffer(hComp,bufferHdr,port,appData,bytes);
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}
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} else if (port == OMX_CORE_OUTPUT_PORT_INDEX) {
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+ if (output_use_buffer) {
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+ DEBUG_PRINT_ERROR("Allocate output buffer not allowed after use buffer");
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+ return OMX_ErrorBadParameter;
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+ }
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eRet = client_buffers.allocate_buffers_color_convert(hComp,bufferHdr,port,
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appData,bytes);
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} else {
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@@ -7071,6 +7079,7 @@ OMX_ERRORTYPE omx_vdec::free_buffer(OMX_IN OMX_HANDLETYPE hComp,
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(void) hComp;
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DEBUG_PRINT_LOW("In for decoder free_buffer");
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+ auto_lock l(buf_lock);
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if (m_state == OMX_StateIdle &&
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(BITMASK_PRESENT(&m_flags ,OMX_COMPONENT_LOADING_PENDING))) {
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DEBUG_PRINT_LOW(" free buffer while Component in Loading pending");
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@@ -7087,7 +7096,7 @@ OMX_ERRORTYPE omx_vdec::free_buffer(OMX_IN OMX_HANDLETYPE hComp,
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post_event(OMX_EventError,
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OMX_ErrorPortUnpopulated,
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OMX_COMPONENT_GENERATE_EVENT);
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-
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+ m_buffer_error = true;
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return OMX_ErrorIncorrectStateOperation;
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} else if (m_state != OMX_StateInvalid) {
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DEBUG_PRINT_ERROR("Invalid state to free buffer,port lost Buffers");
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@@ -7192,6 +7201,7 @@ OMX_ERRORTYPE omx_vdec::free_buffer(OMX_IN OMX_HANDLETYPE hComp,
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BITMASK_CLEAR((&m_flags),OMX_COMPONENT_LOADING_PENDING);
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post_event(OMX_CommandStateSet, OMX_StateLoaded,
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OMX_COMPONENT_GENERATE_EVENT);
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+ m_buffer_error = false;
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}
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}
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return eRet;
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@@ -7363,6 +7373,11 @@ OMX_ERRORTYPE omx_vdec::empty_this_buffer_proxy(OMX_IN OMX_HANDLETYPE hComp,
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if (!temp_buffer || (temp_buffer - drv_ctx.ptr_inputbuffer) > (int)drv_ctx.ip_buf.actualcount) {
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return OMX_ErrorBadParameter;
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}
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+
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+ if (BITMASK_ABSENT(&m_inp_bm_count, nPortIndex) || m_buffer_error) {
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+ DEBUG_PRINT_ERROR("ETBProxy: ERROR: invalid buffer, nPortIndex %u", nPortIndex);
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+ return OMX_ErrorBadParameter;
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+ }
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/* If its first frame, H264 codec and reject is true, then parse the nal
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and get the profile. Based on this, reject the clip playback */
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if (first_frame == 0 && codec_type_parse == CODEC_TYPE_H264 &&
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@@ -7664,6 +7679,7 @@ OMX_ERRORTYPE omx_vdec::fill_this_buffer_proxy(
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struct vdec_bufferpayload *ptr_outputbuffer = NULL;
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struct vdec_output_frameinfo *ptr_respbuffer = NULL;
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+ auto_lock l(buf_lock);
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nPortIndex = buffer-((OMX_BUFFERHEADERTYPE *)client_buffers.get_il_buf_hdr());
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if (bufferAdd == NULL || nPortIndex >= drv_ctx.op_buf.actualcount) {
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@@ -7672,6 +7688,10 @@ OMX_ERRORTYPE omx_vdec::fill_this_buffer_proxy(
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return OMX_ErrorBadParameter;
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}
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+ if (BITMASK_ABSENT(&m_out_bm_count, nPortIndex) || m_buffer_error) {
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+ DEBUG_PRINT_ERROR("FTBProxy: ERROR: invalid buffer, nPortIndex %u", nPortIndex);
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+ return OMX_ErrorBadParameter;
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+ }
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DEBUG_PRINT_LOW("FTBProxy: bufhdr = %p, bufhdr->pBuffer = %p",
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bufferAdd, bufferAdd->pBuffer);
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/*Return back the output buffer to client*/
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@@ -9032,7 +9052,7 @@ int omx_vdec::async_message_process (void *context, void* message)
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if (omxhdr && omxhdr->nFilledLen && !omx->high_fps) {
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omx->request_perf_level(VIDC_NOMINAL);
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}
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- if (omx->output_use_buffer && omxhdr->pBuffer &&
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+ if (!omx->m_enable_android_native_buffers && omx->output_use_buffer && omxhdr->pBuffer &&
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vdec_msg->msgdata.output_frame.bufferaddr)
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memcpy ( omxhdr->pBuffer, (void *)
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((unsigned long)vdec_msg->msgdata.output_frame.bufferaddr +
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