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From 956717e2b375d7c7f0faafec8f12a7692708eb9a Mon Sep 17 00:00:00 2001
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From: Paul Menzel <pmenzel@molgen.mpg.de>
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Date: Wed, 23 May 2018 12:32:37 +0200
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Subject: [PATCH 10/62] shim: Extend invalid reloc size warning message
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Knowing the value of the reloc directory size is helpful for debugging,
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cf. issue #131 [1],
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[1]: https://github.com/rhboot/shim/issues/131
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Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
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Upstream-commit-id: dd3230d07f3
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---
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shim.c | 10 ++++++++--
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1 file changed, 8 insertions(+), 2 deletions(-)
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diff --git a/shim.c b/shim.c
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index ff0817009cd..05fc65005d1 100644
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--- a/shim.c
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+++ b/shim.c
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@@ -280,8 +280,14 @@ static EFI_STATUS relocate_coff (PE_COFF_LOADER_IMAGE_CONTEXT *context,
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while (RelocBase < RelocBaseEnd) {
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Reloc = (UINT16 *) ((char *) RelocBase + sizeof (EFI_IMAGE_BASE_RELOCATION));
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- if ((RelocBase->SizeOfBlock == 0) || (RelocBase->SizeOfBlock > context->RelocDir->Size)) {
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- perror(L"Reloc %d block size %d is invalid\n", n, RelocBase->SizeOfBlock);
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+ if (RelocBase->SizeOfBlock == 0) {
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+ perror(L"Reloc %d block size 0 is invalid\n", n);
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+ return EFI_UNSUPPORTED;
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+ } else if (RelocBase->SizeOfBlock > context->RelocDir->Size) {
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+ perror(L"Reloc %d block size %d greater than reloc dir"
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+ "size %d, which is invalid\n", n,
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+ RelocBase->SizeOfBlock,
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+ context->RelocDir->Size);
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return EFI_UNSUPPORTED;
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}
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--
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2.26.2
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