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21 lines
640 B
21 lines
640 B
commit 15b158db3ae11cb835f2eb8d2eb48e09d1a4af48 |
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Author: Andreas Gruenbacher <agruen@gnu.org> |
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Date: Mon Jul 15 19:10:02 2019 +0200 |
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Avoid invalid memory access in context format diffs |
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* src/pch.c (another_hunk): Avoid invalid memory access in context format |
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diffs. |
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diff --git a/src/pch.c b/src/pch.c |
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index a500ad9..cb54e03 100644 |
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--- a/src/pch.c |
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+++ b/src/pch.c |
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@@ -1328,6 +1328,7 @@ another_hunk (enum diff difftype, bool rev) |
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ptrn_prefix_context = context; |
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ptrn_suffix_context = context; |
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if (repl_beginning |
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+ || p_end <= 0 |
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|| (p_end |
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!= p_ptrn_lines + 1 + (p_Char[p_end - 1] == '\n'))) |
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{
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