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authorAndroid Build Coastguard Worker <android-build-coastguard-worker@google.com>2022-09-14 05:50:26 +0000
committerAndroid Build Coastguard Worker <android-build-coastguard-worker@google.com>2022-09-14 05:50:26 +0000
commitc9f6fc3286d64db7694d320fecee7823f1570e69 (patch)
tree2ff13d61206888296d3ec14bc1ac21e814695d85
parent92daddaad6afd2a83a144bb80eee8c78cbe8fed6 (diff)
parente045d9f873f2232e18b5a56db180af409b19b614 (diff)
downloadgchips-android13-mainline-permission-release.tar.gz
Change-Id: Ie874c1768083221faa294fc4fdbf4f8c89699f9b
-rw-r--r--gralloc4/src/hidl_common/Allocator.cpp10
1 files changed, 10 insertions, 0 deletions
diff --git a/gralloc4/src/hidl_common/Allocator.cpp b/gralloc4/src/hidl_common/Allocator.cpp
index 6ca758a..3b8e62a 100644
--- a/gralloc4/src/hidl_common/Allocator.cpp
+++ b/gralloc4/src/hidl_common/Allocator.cpp
@@ -77,7 +77,17 @@ void allocate(const buffer_descriptor_t &bufferDescriptor, uint32_t count, IAllo
auto hnd = const_cast<private_handle_t *>(reinterpret_cast<const private_handle_t *>(tmpBuffer));
hnd->imapper_version = HIDL_MAPPER_VERSION_SCALED;
+ // 4k is rougly 7.9 MB with one byte per pixel. We are
+ // assuming that the reserved region might be needed for
+ // dynamic HDR and that represents the largest size.
+ uint64_t max_reserved_region_size = 8ull * 1024 * 1024;
hnd->reserved_region_size = bufferDescriptor.reserved_size;
+ if (hnd->reserved_region_size > max_reserved_region_size) {
+ MALI_GRALLOC_LOGE("%s, Requested reserved region size (%" PRIu64 ") is larger than allowed (%" PRIu64 ")",
+ __func__, hnd->reserved_region_size, max_reserved_region_size);
+ error = Error::BAD_VALUE;
+ break;
+ }
hnd->attr_size = mapper::common::shared_metadata_size() + hnd->reserved_region_size;
if (hnd->get_usage() & GRALLOC_USAGE_ROIINFO)