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Add safety check on sdallocx slow / sampled path.

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This commit is contained in:
Qi Wang
2020-01-30 14:35:54 -08:00
committed by Qi Wang
parent 88d9eca848
commit 974222c626
4 changed files with 19 additions and 5 deletions
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6
src/jemalloc.c
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@@ -2632,7 +2632,11 @@ isfree(tsd_t *tsd, void *ptr, size_t usize, tcache_t *tcache, bool slow_path) {
rtree_szind_slab_read(tsd_tsdn(tsd), &extents_rtree,
rtree_ctx, (uintptr_t)ptr, true, &ctx->szind,
&ctx->slab);
assert(ctx->szind == sz_size2index(usize));
/* Small alloc may have !slab (sampled). */
bool sz_correct = (ctx->szind == sz_size2index(usize));
if (config_opt_safety_checks && !sz_correct) {
safety_check_fail_sized_dealloc(true);
}
} else {
ctx = NULL;
}