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| author | unknown <hf@deer.(none)> | 2003-11-04 18:59:49 +0400 |
|---|---|---|
| committer | unknown <hf@deer.(none)> | 2003-11-04 18:59:49 +0400 |
| commit | 0f6eb9654dae4d5c0a62e115f0021893ef6351ec (patch) | |
| tree | 1797699cfb58133abdfea5c8c888160724fd2235 /myisam/rt_split.c | |
| parent | cd5308cd9babecbcd93706ab37a88fa3faea86fa (diff) | |
| download | mariadb-git-0f6eb9654dae4d5c0a62e115f0021893ef6351ec.tar.gz | |
Fix for memory overlap in rt_split.c (reported by valgrind)
myisam/rt_split.c:
Prevent memcpy if source and destination are same
Diffstat (limited to 'myisam/rt_split.c')
| -rw-r--r-- | myisam/rt_split.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/myisam/rt_split.c b/myisam/rt_split.c index 41d6f8f8ccd..62b8ea6a65b 100644 --- a/myisam/rt_split.c +++ b/myisam/rt_split.c @@ -326,7 +326,8 @@ int rtree_split_page(MI_INFO *info, MI_KEYDEF *keyinfo, uchar *page, uchar *key, cur2 = rt_PAGE_NEXT_KEY(cur2, key_length, nod_flag); ++n2; } - memcpy(to - nod_flag, cur->key - nod_flag, full_length); + if (to != cur->key) + memcpy(to - nod_flag, cur->key - nod_flag, full_length); } mi_putint(page, 2 + n1 * full_length, nod_flag); |