PR29892, Field file_table of struct module is uninitialized
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Commit Message
PR 29892
* vms-alphs.c (new_module): Use bfd_zmalloc to alloc file_table.
(parse_module): Rewrite file_table reallocation code and clear.
@@ -4337,7 +4337,7 @@ new_module (bfd *abfd)
= (struct module *) bfd_zalloc (abfd, sizeof (struct module));
module->file_table_count = 16; /* Arbitrary. */
module->file_table
- = bfd_malloc (module->file_table_count * sizeof (struct fileinfo));
+ = bfd_zmalloc (module->file_table_count * sizeof (struct fileinfo));
return module;
}
@@ -4520,15 +4520,18 @@ parse_module (bfd *abfd, struct module *module, unsigned char *ptr,
src_ptr + DST_S_B_SRC_DF_FILENAME,
ptr + rec_length - (src_ptr + DST_S_B_SRC_DF_FILENAME));
- while (fileid >= module->file_table_count)
+ if (fileid >= module->file_table_count)
{
- module->file_table_count *= 2;
+ unsigned int old_count = module->file_table_count;
+ module->file_table_count += fileid;
module->file_table
= bfd_realloc_or_free (module->file_table,
module->file_table_count
* sizeof (struct fileinfo));
if (module->file_table == NULL)
return false;
+ memset (module->file_table + old_count, 0,
+ fileid * sizeof (struct fileinfo));
}
module->file_table [fileid].name = filename;