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Add double free detection in thread cache for debug build

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Add new runtime option `debug_double_free_max_scan` that specifies the max
number of stack entries to scan in the cache bit when trying to detect the
double free bug (currently debug build only).
This commit is contained in:
Ivan Zaitsev
2022-07-20 15:25:56 -07:00
committed by Qi Wang
parent adc70c0511
commit 36366f3c4c
8 changed files with 97 additions and 9 deletions
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test/unit/mallctl.c
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@@ -325,6 +325,7 @@ TEST_BEGIN(test_mallctl_opt) {
TEST_MALLCTL_OPT(bool, prof_stats, prof);
TEST_MALLCTL_OPT(bool, prof_sys_thread_name, prof);
TEST_MALLCTL_OPT(ssize_t, lg_san_uaf_align, uaf_detection);
TEST_MALLCTL_OPT(unsigned, debug_double_free_max_scan, always);
#undef TEST_MALLCTL_OPT
}