FreeChainXenon/binutils-gdb
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readelf: segfault at readelf.c:12227

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This is another one where not cleaning up sufficiently after
processing one file can lead to errors when processing the next file.
We have ngnuchains non-zero but gnuchains NULL in the following:
  off < ngnuchains && (gnuchains[off] & 1) == 0

	* readelf.c (process_symbol_table): Clear ngnuchains, ngnubuckets
	and nbuckets.
This commit is contained in:
Alan Modra 2020-04-20 11:01:47 +09:30
parent 8ff66993e0
commit a5e0be5cb2
2 changed files with 11 additions and 0 deletions
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6
binutils/readelf.c
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@ -12188,6 +12188,7 @@ process_symbol_table (Filedata * filedata)
free (buckets);
buckets = NULL;
nbuckets = 0;
free (chains);
chains = NULL;
@ -12263,8 +12264,10 @@ process_symbol_table (Filedata * filedata)
}
free (gnubuckets);
gnubuckets = NULL;
ngnubuckets = 0;
free (gnuchains);
gnuchains = NULL;
ngnuchains = 0;
free (mipsxlat);
mipsxlat = NULL;
return TRUE;
@ -12272,12 +12275,15 @@ process_symbol_table (Filedata * filedata)
err_out:
free (gnubuckets);
gnubuckets = NULL;
ngnubuckets = 0;
free (gnuchains);
gnuchains = NULL;
ngnuchains = 0
free (mipsxlat);
mipsxlat = NULL;
free (buckets);
buckets = NULL;
nbuckets = 0;
free (chains);
chains = NULL;
return FALSE;