From: Sergey Cheremencev <sergey.cheremencev@hpe.com>
Date: Mon, 18 Jan 2021 22:11:45 +0000 (+0300)
Subject: LU-14307 quota: fix NULL pointer dereference
X-Git-Tag: 2.14.0-RC1~2
X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=commitdiff_plain;h=3d9b1ae185d90300caa9e357fa29b0e13f6518ad

LU-14307 quota: fix NULL pointer dereference

Fix NULL pointer dereference at 0x20 in
qmt_trans_start_with_slv->lquota_lqe_debug.

HPE-bug-id: LUS-9662
Change-Id: Iead0df053ae0dcb7453c1910a4b4b7a3728da829
Signed-off-by: Sergey Cheremencev <sergey.cheremencev@hpe.com>
Reviewed-on: https://review.whamcloud.com/41264
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Wang Shilong <wshilong@whamcloud.com>
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>
---

diff --git a/lustre/quota/qmt_entry.c b/lustre/quota/qmt_entry.c
index da29dc4..8b452b4 100644
--- a/lustre/quota/qmt_entry.c
+++ b/lustre/quota/qmt_entry.c
@@ -252,7 +252,8 @@ struct thandle *qmt_trans_start_with_slv(const struct lu_env *env,
 
 	if (slv_obj != NULL) {
 		/* reserve credits for slave index update */
-		rc = lquota_disk_declare_write(env, th, slv_obj, &lqe->lqe_id);
+		rc = lquota_disk_declare_write(env, th, slv_obj,
+					       &lqes[0]->lqe_id);
 		if (rc)
 			GOTO(out, rc);
 	}
@@ -267,7 +268,7 @@ out:
 	if (rc) {
 		dt_trans_stop(env, qmt->qmt_child, th);
 		th = ERR_PTR(rc);
-		LQUOTA_ERROR(lqe, "failed to slv declare write for "DFID
+		LQUOTA_ERROR(lqes[0], "failed to slv declare write for "DFID
 			     ", rc:%d", PFID(lu_object_fid(&slv_obj->do_lu)),
 			     rc);
 	} else {