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Add ptr check in stmt execute parse stage

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obdev
2023-05-04 13:45:29 +00:00
committed by ob-robot
parent ce0d9ddd4b
commit 852f728be0
1 changed files with 10 additions and 4 deletions
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14
src/observer/mysql/obmp_stmt_execute.cpp
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@ -2458,8 +2458,11 @@ int ObMPStmtExecute::parse_param_value(ObIAllocator &allocator,
// 4. merge all this info // 4. merge all this info
char *tmp = static_cast<char*>(piece->get_allocator()->alloc(length)); char *tmp = static_cast<char*>(piece->get_allocator()->alloc(length));
int64_t pos = 0; int64_t pos = 0;
MEMSET(tmp, 0, length); if (OB_ISNULL(tmp)) {
if (OB_FAIL(ObMySQLUtil::store_length(tmp, length, count, pos))) { ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("failed to alloc memory", K(ret));
} else if (FALSE_IT(MEMSET(tmp, 0, length))) {
} else if (OB_FAIL(ObMySQLUtil::store_length(tmp, length, count, pos))) {
LOG_WARN("store length fail.", K(ret), K(stmt_id_), K(param_id)); LOG_WARN("store length fail.", K(ret), K(stmt_id_), K(param_id));
} else { } else {
MEMCPY(tmp+pos, is_null_map, bitmap_bytes); MEMCPY(tmp+pos, is_null_map, bitmap_bytes);
@ -2497,8 +2500,11 @@ int ObMPStmtExecute::parse_param_value(ObIAllocator &allocator,
} else { } else {
char *tmp = static_cast<char*>(piece->get_allocator()->alloc(length)); char *tmp = static_cast<char*>(piece->get_allocator()->alloc(length));
int64_t pos = 0; int64_t pos = 0;
MEMSET(tmp, 0, length); if (OB_ISNULL(tmp)) {
if (OB_FAIL(ObMySQLUtil::store_obstr(tmp, length, str_buf.at(0).string(), pos))) { ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("failed to alloc memory", K(ret));
} else if (FALSE_IT(MEMSET(tmp, 0, length))) {
} else if (OB_FAIL(ObMySQLUtil::store_obstr(tmp, length, str_buf.at(0).string(), pos))) {
LOG_WARN("store string fail.", K(ret), K(stmt_id_), K(param_id)); LOG_WARN("store string fail.", K(ret), K(stmt_id_), K(param_id));
} else { } else {
const char* src = tmp; const char* src = tmp;