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Add one more check to double free validation.

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guangli-dai
2025-05-07 16:37:26 -07:00
committed by Qi Wang
parent 5e460bfea2
commit fd60645260
1 changed files with 2 additions and 1 deletions
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3
include/jemalloc/internal/arena_inlines_b.h
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@@ -68,7 +68,8 @@ large_dalloc_safety_checks(edata_t *edata, const void *ptr, size_t input_size) {
"possibly caused by double free bugs.", ptr); "possibly caused by double free bugs.", ptr);
return true; return true;
} }
if (unlikely(input_size != edata_usize_get(edata))) { if (unlikely(input_size != edata_usize_get(edata) ||
input_size > SC_LARGE_MAXCLASS)) {
safety_check_fail_sized_dealloc(/* current_dealloc */ true, ptr, safety_check_fail_sized_dealloc(/* current_dealloc */ true, ptr,
/* true_size */ edata_usize_get(edata), input_size); /* true_size */ edata_usize_get(edata), input_size);
return true; return true;