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Defend against bad PT_DYNAMIC

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https://github.com/upx/upx/issues/391
	modified:   p_lx_elf.cpp
	modified:   p_lx_elf.h
This commit is contained in:
John Reiser
2020-07-23 05:09:52 -07:00
committed by Markus F.X.J. Oberhumer
parent 73b854874e
commit 4e2fdb464a
2 changed files with 28 additions and 10 deletions
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src/p_lx_elf.h
+2 -2
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@@ -157,7 +157,7 @@ protected:
Elf32_Shdr const *elf_find_section_type(unsigned) const;
unsigned check_pt_load(Elf32_Phdr const *);
unsigned check_pt_dynamic(Elf32_Phdr const *);
void invert_pt_dynamic(Elf32_Dyn const *);
void invert_pt_dynamic(Elf32_Dyn const *, unsigned dt_filesz);
void const *elf_find_dynamic(unsigned) const;
Elf32_Dyn const *elf_has_dynamic(unsigned) const;
virtual upx_uint64_t elf_unsigned_dynamic(unsigned) const;
@@ -295,7 +295,7 @@ protected:
Elf64_Shdr const *elf_find_section_type(unsigned) const;
upx_uint64_t check_pt_load(Elf64_Phdr const *);
upx_uint64_t check_pt_dynamic(Elf64_Phdr const *);
void invert_pt_dynamic(Elf64_Dyn const *);
void invert_pt_dynamic(Elf64_Dyn const *, upx_uint64_t dt_filesz);
void const *elf_find_dynamic(unsigned) const;
Elf64_Dyn const *elf_has_dynamic(unsigned) const;
virtual upx_uint64_t elf_unsigned_dynamic(unsigned) const;