| commit | 400ffaa2acd72274e2c7293a9724382383bebf3e | [log] [tgz] |
|---|---|---|
| author | Slava Pestov <sp@daterainc.com> | Sat Jul 12 21:53:11 2014 -0700 |
| committer | Kent Overstreet <kmo@daterainc.com> | Mon Aug 04 15:23:04 2014 -0700 |
| tree | d9f374a9be6fe1ce88ec1513282dba0980baf49c | |
| parent | 6b708de64adb6dc8319e7aeac922b46904fbeeec [diff] |
bcache: fix use-after-free in btree_gc_coalesce() If we goto out_nocoalesce after we free new_nodes[0], we end up freeing new_nodes[0] again. This was generating a lockdep warning. The fix is to set new_nodes[0] to NULL, since the out_nocoalesce path safely ignores NULL entries in the new_nodes array. This regression was introduced in 2d7f9531. Change-Id: I76564d7257800583214376b4bacf236cda90c89c