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| author | Yinan Zhang <zyn8950@gmail.com> | 2019-07-03 23:48:47 (GMT) |
|---|---|---|
| committer | David Goldblatt <davidtgoldblatt@gmail.com> | 2019-07-12 03:51:29 (GMT) |
| commit | 7720b6e3851d200449914448c7163f7af92cd63f (patch) | |
| tree | f6e630912b0aa9c68b1fce40b32727537369917c | |
| parent | 40a3435b8dc225ad61329aca89d9c8d0dfbc03ab (diff) | |
| download | jemalloc-7720b6e3851d200449914448c7163f7af92cd63f.zip jemalloc-7720b6e3851d200449914448c7163f7af92cd63f.tar.gz jemalloc-7720b6e3851d200449914448c7163f7af92cd63f.tar.bz2 | |
Fix redzone setting and checking
| -rw-r--r-- | include/jemalloc/internal/safety_check.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/jemalloc/internal/safety_check.h b/include/jemalloc/internal/safety_check.h index 1b53fc4..53339ac 100644 --- a/include/jemalloc/internal/safety_check.h +++ b/include/jemalloc/internal/safety_check.h @@ -9,7 +9,7 @@ JEMALLOC_ALWAYS_INLINE void safety_check_set_redzone(void *ptr, size_t usize, size_t bumped_usize) { assert(usize < bumped_usize); for (size_t i = usize; i < bumped_usize && i < usize + 32; ++i) { - *((unsigned char *)ptr + usize) = 0xBC; + *((unsigned char *)ptr + i) = 0xBC; } } @@ -17,7 +17,7 @@ JEMALLOC_ALWAYS_INLINE void safety_check_verify_redzone(const void *ptr, size_t usize, size_t bumped_usize) { for (size_t i = usize; i < bumped_usize && i < usize + 32; ++i) { - if (unlikely(*((unsigned char *)ptr + usize) != 0xBC)) { + if (unlikely(*((unsigned char *)ptr + i) != 0xBC)) { safety_check_fail("Use after free error\n"); } } |