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PR29170, divide by zero displaying fuzzed .debug_names

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PR 29170
	* dwarf.c (display_debug_names): Don't attempt to display bucket
	clashes when bucket count is zero.
This commit is contained in:
Alan Modra 2022-05-24 10:22:50 +09:30
parent 244e19c791
commit 5fbb38fcc5
1 changed files with 23 additions and 20 deletions
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3
binutils/dwarf.c
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@ -10149,6 +10149,8 @@ display_debug_names (struct dwarf_section *section, void *file)
bucket_count),
buckets_filled, (unsigned long) bucket_count);
if (bucket_count != 0)
{
uint32_t hash_prev = 0;
size_t hash_clash_count = 0;
size_t longest_clash = 0;
@ -10175,6 +10177,7 @@ display_debug_names (struct dwarf_section *section, void *file)
" (longest of %zu entries).\n"),
(unsigned long) name_count, hash_clash_count, longest_clash);
assert (name_count == buckets_filled + hash_clash_count);
}
struct abbrev_lookup_entry
{