Hi Daniel,
url: https://github.com/0day-ci/linux/commits/Daniel-Latypov/kunit-support-runnin... base: 88bb507a74ea7d75fa49edd421eaa710a7d80598 config: x86_64-randconfig-m001-20210202 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot lkp@intel.com Reported-by: Dan Carpenter dan.carpenter@oracle.com
smatch warnings: lib/kunit/executor.c:110 kunit_run_all_tests() error: double free of 'suite_set.start'
vim +110 lib/kunit/executor.c
8c0d884986ba22 Brendan Higgins 2020-08-04 96 int kunit_run_all_tests(void) aac35468ca20a3 Alan Maguire 2020-08-04 97 { aac35468ca20a3 Alan Maguire 2020-08-04 98 struct kunit_suite * const * const *suites; aac35468ca20a3 Alan Maguire 2020-08-04 99 d5554dd78a454b Daniel Latypov 2021-02-03 100 struct suite_set suite_set = kunit_filter_suites(); 45dcbb6f5ef78b Brendan Higgins 2020-08-04 101 d5554dd78a454b Daniel Latypov 2021-02-03 102 kunit_print_tap_header(&suite_set); d5554dd78a454b Daniel Latypov 2021-02-03 103 d5554dd78a454b Daniel Latypov 2021-02-03 104 for (suites = suite_set.start; suites < suite_set.end; suites++) aac35468ca20a3 Alan Maguire 2020-08-04 105 __kunit_test_suites_init(*suites); aac35468ca20a3 Alan Maguire 2020-08-04 106 d5554dd78a454b Daniel Latypov 2021-02-03 107 if (filter_glob) { /* a copy was made of each array */ d5554dd78a454b Daniel Latypov 2021-02-03 108 for (suites = suite_set.start; suites < suite_set.end; suites++) ^^^^^^^^^^^^^^^^^^^^^^^^ This will free "suite_set.start" will in the first iteration through the loop
d5554dd78a454b Daniel Latypov 2021-02-03 109 kfree(suites); d5554dd78a454b Daniel Latypov 2021-02-03 @110 kfree(suite_set.start); ^^^^^^^^^^^^^^^ and then double free it.
d5554dd78a454b Daniel Latypov 2021-02-03 111 } d5554dd78a454b Daniel Latypov 2021-02-03 112 aac35468ca20a3 Alan Maguire 2020-08-04 113 return 0; aac35468ca20a3 Alan Maguire 2020-08-04 114 }
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