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| author | Eugene Kosov <claprix@yandex.ru> | 2018-03-19 16:18:53 +0300 |
|---|---|---|
| committer | Eugene Kosov <claprix@yandex.ru> | 2018-03-19 16:18:53 +0300 |
| commit | 75c76dbb06a99359d867e2a516f3244bf41fde96 (patch) | |
| tree | 4dafb44a0e03d5f063b7e1d332d2b21fe0eb8b06 /storage | |
| parent | 0943b33de3daa0fcbf58803be8e991941de63218 (diff) | |
| download | mariadb-git-75c76dbb06a99359d867e2a516f3244bf41fde96.tar.gz | |
MDEV-15030 Add ASAN instrumentation
Learn both valgrind and asan to catch this bug:
mem_heap_t* heap = mem_heap_create(1024);
byte* p = reinterpret_cast<byte*>(heap) + sizeof(mem_heap_t);
*p = 123;
Overflows of the last allocation in a block will be catched too.
mem_heap_create_block(): poison newly allocated memory
Diffstat (limited to 'storage')
| -rw-r--r-- | storage/innobase/mem/mem0mem.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/storage/innobase/mem/mem0mem.c b/storage/innobase/mem/mem0mem.c index 6e9a39d329f..31f235b1960 100644 --- a/storage/innobase/mem/mem0mem.c +++ b/storage/innobase/mem/mem0mem.c @@ -404,6 +404,8 @@ mem_heap_create_block( heap->total_size += len; } + UNIV_MEM_FREE(block + 1, len - MEM_BLOCK_HEADER_SIZE); + ut_ad((ulint)MEM_BLOCK_HEADER_SIZE < len); return(block); |