tarantool / luajit / 27133088920

93%

tarantool/master: 93%

Build Type

push

github

Committed by ligurio

Commit Message

Prevent sanitizer warning in os.time().

Reported by Sergey Bronnikov.

(cherry picked from commit 86d414f5c)

The function `lj_cf_os_time()` calculates the `tm_mon` and
`tm_year` values using `get_field()`. If this helper function
returns a negative result, subtraction may lead to undefined
behavior due to signed integer overflow. The patch fixes the issue
by adding a cast to the value returned by `get_field()`.

Sergey Bronnikov:
* added the description and the test for the problem

Part of tarantool/tarantool#12480

Coverage Stats

5719 of 6056 branches covered (94.44%)

Branch coverage included in aggregate %.

2 of 2 new or added lines in 1 file covered. (100.0%)

6 existing lines in 1 file now uncovered.

21847 of 23547 relevant lines covered (92.78%)

3973253.56 hits per line