diff options
| author | NeilBrown <neilb@suse.de> | 2013-07-24 15:37:42 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-04 16:26:00 +0800 |
| commit | aa2f8abe27dd7058fd7bfe52401121037a285406 (patch) | |
| tree | 241e0890bf19f715834bb5ee6584a4cebab7ef5b /lib/radix-tree.c | |
| parent | 0761d079bbc23ffd309c586ddd142b3cb5f11e0d (diff) | |
md/raid10: remove use-after-free bug.
commit 0eb25bb027a100f5a9df8991f2f628e7d851bc1e upstream.
We always need to be careful when calling generic_make_request, as it
can start a chain of events which might free something that we are
using.
Here is one place I wasn't careful enough. If the wbio2 is not in
use, then it might get freed at the first generic_make_request call.
So perform all necessary tests first.
This bug was introduced in 3.3-rc3 (24afd80d99) and can cause an
oops, so fix is suitable for any -stable since then.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/radix-tree.c')
0 files changed, 0 insertions, 0 deletions