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Fix segfault in find_files if db is NULL and path does not exist or can't be read

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In this case, one would end up calling my_error(ER_BAD_DB_ERROR, ...)
with a null ptr for DB, which caused a NULL ptr dereference.
This commit is contained in:
Vicentiu Ciorbaru 2023-06-05 11:05:22 +03:00 • committed by Monty
commit 324d8a6036
1 changed files with 1 additions and 1 deletions
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2
sql/sql_show.cc
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@ -943,7 +943,7 @@ find_files(THD *thd, Dynamic_array<LEX_CSTRING*> *files, LEX_CSTRING *db,
if (!(dirp = my_dir(path, MY_THREAD_SPECIFIC | (db ? 0 : MY_WANT_STAT))))
{
if (my_errno == ENOENT)
if (my_errno == ENOENT && db)
my_error(ER_BAD_DB_ERROR, MYF(0), db->str);
else
my_error(ER_CANT_READ_DIR, MYF(0), path, my_errno);