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authorDavid Howells <dhowells@redhat.com>2014-09-02 13:52:20 +0100
committerJames Morris <james.l.morris@oracle.com>2014-09-03 10:30:22 +1000
commit27419604f51a97d497853f14142c1059d46eb597 (patch)
treee5098e23130775f553e0fe65b9315f288985ad48 /lib/assoc_array.c
parent876c6e3e028d1b326c81f6f134a4804b92f67dc7 (diff)
downloadop-kernel-dev-27419604f51a97d497853f14142c1059d46eb597.zip
op-kernel-dev-27419604f51a97d497853f14142c1059d46eb597.tar.gz
KEYS: Fix use-after-free in assoc_array_gc()
An edit script should be considered inaccessible by a function once it has called assoc_array_apply_edit() or assoc_array_cancel_edit(). However, assoc_array_gc() is accessing the edit script just after the gc_complete: label. Reported-by: Andreea-Cristina Bernat <bernat.ada@gmail.com> Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Andreea-Cristina Bernat <bernat.ada@gmail.com> cc: shemming@brocade.com cc: paulmck@linux.vnet.ibm.com Cc: stable@vger.kernel.org Signed-off-by: James Morris <james.l.morris@oracle.com>
Diffstat (limited to 'lib/assoc_array.c')
-rw-r--r--lib/assoc_array.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/assoc_array.c b/lib/assoc_array.c
index c0b1007..ae146f0 100644
--- a/lib/assoc_array.c
+++ b/lib/assoc_array.c
@@ -1735,7 +1735,7 @@ ascend_old_tree:
gc_complete:
edit->set[0].to = new_root;
assoc_array_apply_edit(edit);
- edit->array->nr_leaves_on_tree = nr_leaves_on_tree;
+ array->nr_leaves_on_tree = nr_leaves_on_tree;
return 0;
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