26 lines
775 B
Diff
26 lines
775 B
Diff
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From d87a7513c6f2f2824203032ef27caeb84892ed7e Mon Sep 17 00:00:00 2001
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From: Will Fancher <elvishjerricco@gmail.com>
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Date: Tue, 30 May 2023 16:53:20 -0400
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Subject: [PATCH] Intentionally break the fat driver
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---
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FatPkg/EnhancedFatDxe/ReadWrite.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/FatPkg/EnhancedFatDxe/ReadWrite.c b/FatPkg/EnhancedFatDxe/ReadWrite.c
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index 8f525044d1f1..32c62ff7817b 100644
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--- a/FatPkg/EnhancedFatDxe/ReadWrite.c
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+++ b/FatPkg/EnhancedFatDxe/ReadWrite.c
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@@ -216,6 +216,11 @@ FatIFileAccess (
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Volume = OFile->Volume;
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Task = NULL;
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+ if (*BufferSize > (10U * 1024U * 1024U)) {
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+ IFile->Position += 10U * 1024U * 1024U;
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+ return EFI_BAD_BUFFER_SIZE;
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+ }
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+
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//
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// Write to a directory is unsupported
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//
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