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[DOM] Validate size in FileReader.

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This commit is contained in:
Moonchild
2026-04-29 11:30:43 +02:00
committed by roytam1
parent c748294a4a
commit dceb1c4fe6
1 changed files with 7 additions and 1 deletions
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dom/base/FileReader.cpp
+7 -1
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@@ -395,8 +395,14 @@ FileReader::ReadFileContent(Blob& aBlob,
return;
}
CheckedInt<size_t> size(mTotal);
if (!size.isValid()) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
return;
}
if (mDataFormat == FILE_AS_ARRAYBUFFER) {
mFileData = js_pod_malloc<char>(mTotal);
mFileData = js_pod_malloc<char>(size.value());
if (!mFileData) {
NS_WARNING("Preallocation failed for ReadFileData");
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);