Resolve #1023 - Commit 129e542a - STRLCPY/LIEF

Resolve #1023
Romain Thomas committed 3 months ago

129e542a

1 parent b9b0adf6

Total 2 files Show one by one

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src/ELF/Binary.cpp

		skipped 1728 lines
1729	1729		span<const uint8_t> content = segment->content();
1730	1730		const uint64_t offset = virtual_address - segment->virtual_address();
1731	1731		uint64_t checked_size = size;
	1732	+
	1733	+	if (offset >= content.size()) {
	1734	+	return {};
	1735	+	}
	1736	+
1732	1737		if ((offset + checked_size) > content.size()) {
1733	1738		checked_size = checked_size - (offset + checked_size - content.size());
1734	1739		}
		skipped 1557 lines

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tests/elf/test_issues.py

		skipped 23 lines
24	24		sym: lief.ELF.Symbol = elf.get_symbol("strstr")
25	25		assert sym.imported
26	26
	27	+	def test_issue_1023():
	28	+	"""
	29	+	Make sure that get_content_from_virtual_address return an empty
	30	+	buffer when trying to read bss segment
	31	+	"""
	32	+	elf = lief.ELF.parse(get_sample('ELF/nopie_bss_671.elf'))
	33	+
	34	+	bss_segment = elf.segments[3]
	35	+	bss_start = bss_segment.virtual_address + bss_segment.physical_size
	36	+	bss_content = elf.get_content_from_virtual_address(bss_start + 1, 1)
	37	+
	38	+	assert len(bss_content) == 0
	39	+

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