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| author | Slava Pestov <sp@daterainc.com> | 2014-07-13 08:53:11 +0400 |
|---|---|---|
| committer | Kent Overstreet <kmo@daterainc.com> | 2014-08-05 02:23:04 +0400 |
| commit | 400ffaa2acd72274e2c7293a9724382383bebf3e (patch) | |
| tree | d9f374a9be6fe1ce88ec1513282dba0980baf49c /drivers/md/dm-bio-prison.c | |
| parent | 6b708de64adb6dc8319e7aeac922b46904fbeeec (diff) | |
| download | linux-400ffaa2acd72274e2c7293a9724382383bebf3e.tar.xz | |
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
Diffstat (limited to 'drivers/md/dm-bio-prison.c')
0 files changed, 0 insertions, 0 deletions