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linux: Don't load section headers of test module

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The ELF standard allows substantial flexibility in the construction of
valid ELF modules, but there are widely followed conventions. For
example, ELF modules typically contain several segments, they do load
their program headers, and they don't load their section headers.

Bionic contains a variety of checks that the modules it's loading look
typical. Beginning with Android M, Bionic refuses to load segments which
contain the entire file contents.

Change-Id: I0687a3cfd84b3561112dcd32eb6b96493969695e
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/2486401
Reviewed-by: Mark Mentovai <mark@chromium.org>
This commit is contained in:
Joshua Peraza 2020-10-19 14:37:14 -07:00
parent cdb1e7f52b
commit 640b13f3cb
1 changed files with 4 additions and 4 deletions
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8
snapshot/linux/process_reader_linux_test.cc
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@ -643,16 +643,16 @@ bool WriteTestModule(const base::FilePath& module_path,
module.phdr_table.load1.p_type = PT_LOAD;
module.phdr_table.load1.p_offset = 0;
module.phdr_table.load1.p_vaddr = 0;
module.phdr_table.load1.p_filesz = sizeof(module);
module.phdr_table.load1.p_memsz = sizeof(module);
module.phdr_table.load1.p_filesz = offsetof(decltype(module), shdr_table);
module.phdr_table.load1.p_memsz = offsetof(decltype(module), shdr_table);
module.phdr_table.load1.p_flags = PF_R;
module.phdr_table.load1.p_align = load2_vaddr;
module.phdr_table.load2.p_type = PT_LOAD;
module.phdr_table.load2.p_offset = 0;
module.phdr_table.load2.p_vaddr = load2_vaddr;
module.phdr_table.load2.p_filesz = sizeof(module);
module.phdr_table.load2.p_memsz = sizeof(module);
module.phdr_table.load2.p_filesz = offsetof(decltype(module), shdr_table);
module.phdr_table.load2.p_memsz = offsetof(decltype(module), shdr_table);
module.phdr_table.load2.p_flags = PF_R | PF_W;
module.phdr_table.load2.p_align = load2_vaddr;