24 lines
983 B
Diff
24 lines
983 B
Diff
For some binaries we can get a invalid section alignment, for example if
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sh_align = 1 and sh_addralign is 0. In the case of a zero size section like
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".note.GNU-stack", this is irrelavent as far as I can tell and we shouldn't
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error in this case.
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RP 2014/6/11
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Upstream-Status: Pending
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diff --git a/libelf/elf32_updatenull.c b/libelf/elf32_updatenull.c
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--- a/libelf/elf32_updatenull.c
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+++ b/libelf/elf32_updatenull.c
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@@ -339,8 +339,8 @@ __elfw2(LIBELFBITS,updatenull_wrlock) (Elf *elf, int *change_bop, size_t shnum)
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we test for the alignment of the section being large
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enough for the largest alignment required by a data
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block. */
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- if (unlikely (! powerof2 (shdr->sh_addralign))
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- || unlikely ((shdr->sh_addralign ?: 1) < sh_align))
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+ if (shdr->sh_size && (unlikely (! powerof2 (shdr->sh_addralign))
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+ || unlikely ((shdr->sh_addralign ?: 1) < sh_align)))
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{
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__libelf_seterrno (ELF_E_INVALID_ALIGN);
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return -1;
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