[PATCH 4.9 49/63] dlm: possible memory leak on error path in create_lkb()

From: Greg Kroah-Hartman
Date: Fri Jan 11 2019 - 10:06:10 EST


4.9-stable review patch. If anyone has any objections, please let me know.

------------------

From: Vasily Averin <vvs@xxxxxxxxxxxxx>

commit 23851e978f31eda8b2d01bd410d3026659ca06c7 upstream.

Fixes 3d6aa675fff9 ("dlm: keep lkbs in idr")
Cc: stable@xxxxxxxxxx # 3.1

Signed-off-by: Vasily Averin <vvs@xxxxxxxxxxxxx>
Signed-off-by: David Teigland <teigland@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
fs/dlm/lock.c | 1 +
1 file changed, 1 insertion(+)

--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -1210,6 +1210,7 @@ static int create_lkb(struct dlm_ls *ls,

if (rv < 0) {
log_error(ls, "create_lkb idr error %d", rv);
+ dlm_free_lkb(lkb);
return rv;
}