27 May
2025
27 May
'25
11:24 p.m.
https://bugs.openldap.org/show_bug.cgi?id=10340
--- Comment #1 from Alex Guo alexguo1023@gmail.com --- Additionally, later in `mdb_rebalance`, the code calls:
```c rc = mdb_page_merge(&mn, mc); … rc = mdb_page_merge(mc, &mn); ```
Inside `mdb_page_merge`, `mc_top` is similarly decremented and then used to index `mc_pg` without any preceding check. This same underflow risk exists there and should be guarded with this patch.
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