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authorAlexey Botchkov <holyfoot@askmonty.org>2020-10-22 15:51:14 +0400
committerAlexey Botchkov <holyfoot@askmonty.org>2020-10-22 15:51:14 +0400
commit21ea14db8cc8c5d88ff804650de7caf984d08a98 (patch)
treec8f021d2bf090d6eba9b4bbdfc3f9f322d26de6b /sql
parent620ea816adeceaba7c875679ab8505f4c07a22b8 (diff)
downloadmariadb-git-21ea14db8cc8c5d88ff804650de7caf984d08a98.tar.gz
MDEV-20593 SIGSEGV in report_json_error_ex (on optimized builds).
When first argument to the JSON_MERGE_PATCH was NULL and second - the invalid JSON line, the error code was garbage. So it should be set to 0 initially.
Diffstat (limited to 'sql')
-rw-r--r--sql/item_jsonfunc.cc2
1 files changed, 2 insertions, 0 deletions
diff --git a/sql/item_jsonfunc.cc b/sql/item_jsonfunc.cc
index b3c8366907a..7db1ae1ffaf 100644
--- a/sql/item_jsonfunc.cc
+++ b/sql/item_jsonfunc.cc
@@ -2429,6 +2429,8 @@ String *Item_func_json_merge_patch::val_str(String *str)
uint n_arg;
bool empty_result, merge_to_null;
+ /* To report errors properly if some JSON is invalid. */
+ je1.s.error= je2.s.error= 0;
merge_to_null= args[0]->null_value;
for (n_arg=1; n_arg < arg_count; n_arg++)