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Fix crash on descriptor update with out-of-bounds descriptor count data.

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Update MoltenVK version to 1.2.1.
This commit is contained in:
Bill Hollings 2022-10-31 14:41:08 -04:00
parent 67d59ae3ee
commit 0287a3242c
3 changed files with 12 additions and 3 deletions
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9
Docs/Whats_New.md
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@ -13,6 +13,15 @@ Copyright (c) 2015-2022 [The Brenwill Workshop Ltd.](http://www.brenwill.com)
MoltenVK 1.2.1
--------------
Released TBD
- Fix crash on descriptor update with out-of-bounds descriptor count data.
MoltenVK 1.2.0
--------------

2
MoltenVK/MoltenVK/API/vk_mvk_moltenvk.h
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@ -51,7 +51,7 @@ typedef unsigned long MTLArgumentBuffersTier;
*/
#define MVK_VERSION_MAJOR 1
#define MVK_VERSION_MINOR 2
#define MVK_VERSION_PATCH 0
#define MVK_VERSION_PATCH 1
#define MVK_MAKE_VERSION(major, minor, patch) (((major) * 10000) + ((minor) * 100) + (patch))
#define MVK_VERSION MVK_MAKE_VERSION(MVK_VERSION_MAJOR, MVK_VERSION_MINOR, MVK_VERSION_PATCH)

4
MoltenVK/MoltenVK/GPUObjects/MVKDescriptorSet.mm
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@ -305,7 +305,7 @@ void MVKDescriptorSet::write(const DescriptorAction* pDescriptorAction,
writeDescriptorAt(pDescriptorAction->dstArrayElement);
} else {
uint32_t descStartIdx = _layout->getDescriptorIndex(pDescriptorAction->dstBinding, pDescriptorAction->dstArrayElement);
uint32_t elemCnt = pDescriptorAction->descriptorCount;
uint32_t elemCnt = std::min(pDescriptorAction->descriptorCount, (uint32_t)_descriptors.size() - descStartIdx);
for (uint32_t elemIdx = 0; elemIdx < elemCnt; elemIdx++) {
uint32_t descIdx = descStartIdx + elemIdx;
writeDescriptorAt(elemIdx);
@ -321,7 +321,6 @@ void MVKDescriptorSet::read(const VkCopyDescriptorSet* pDescriptorCopy,
MVKDescriptorSetLayoutBinding* mvkDSLBind = _layout->getBinding(pDescriptorCopy->srcBinding);
VkDescriptorType descType = mvkDSLBind->getDescriptorType();
uint32_t descCnt = pDescriptorCopy->descriptorCount;
if (descType == VK_DESCRIPTOR_TYPE_INLINE_UNIFORM_BLOCK_EXT) {
// For inline buffers srcArrayElement is a byte offset
MVKDescriptor* mvkDesc = getDescriptor(pDescriptorCopy->srcBinding);
@ -330,6 +329,7 @@ void MVKDescriptorSet::read(const VkCopyDescriptorSet* pDescriptorCopy,
}
} else {
uint32_t srcStartIdx = _layout->getDescriptorIndex(pDescriptorCopy->srcBinding, pDescriptorCopy->srcArrayElement);
uint32_t descCnt = std::min(pDescriptorCopy->descriptorCount, (uint32_t)_descriptors.size() - srcStartIdx);
for (uint32_t descIdx = 0; descIdx < descCnt; descIdx++) {
MVKDescriptor* mvkDesc = _descriptors[srcStartIdx + descIdx];
if (mvkDesc->getDescriptorType() == descType) {