diff --git a/include/sys/vdev_rebuild.h b/include/sys/vdev_rebuild.h
index b787b1d5d..8ecb30659 100644
--- a/include/sys/vdev_rebuild.h
+++ b/include/sys/vdev_rebuild.h
@@ -70,6 +70,7 @@ typedef struct vdev_rebuild {
 	zfs_range_tree_t	*vr_scan_tree;
 	kmutex_t	vr_io_lock;		/* inflight IO lock */
 	kcondvar_t	vr_io_cv;		/* inflight IO cv */
+	uint64_t	vr_last_txg;		/* last used txg */
 
 	/* In-core state and progress */
 	uint64_t	vr_scan_offset[TXG_SIZE];
diff --git a/module/zfs/vdev_rebuild.c b/module/zfs/vdev_rebuild.c
index 36b3f9e66..384421206 100644
--- a/module/zfs/vdev_rebuild.c
+++ b/module/zfs/vdev_rebuild.c
@@ -593,6 +593,7 @@ vdev_rebuild_range(vdev_rebuild_t *vr, uint64_t start, uint64_t size)
 	dmu_tx_t *tx = dmu_tx_create_dd(spa_get_dsl(spa)->dp_mos_dir);
 	VERIFY0(dmu_tx_assign(tx, DMU_TX_WAIT | DMU_TX_SUSPEND));
 	uint64_t txg = dmu_tx_get_txg(tx);
+	vr->vr_last_txg = txg;
 
 	spa_config_enter(spa, SCL_STATE_ALL, vd, RW_READER);
 	mutex_enter(&vd->vdev_rebuild_lock);
@@ -908,8 +909,14 @@ vdev_rebuild_thread(void *arg)
 		error = vdev_rebuild_ranges(vr);
 		zfs_range_tree_vacate(vr->vr_scan_tree, NULL, NULL);
 
-		spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
+		/*
+		 * Allow rebuilt ranges to be sync-ed before enabling metaslab
+		 * to avoid any interfering allocations. Otherwise, we might
+		 * see checksum errors after scrub.
+		 */
+		txg_wait_synced(dp, vr->vr_last_txg);
 		metaslab_enable(msp, B_FALSE, B_FALSE);
+		spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER);
 
 		if (error != 0)
 			break;
diff --git a/tests/zfs-tests/tests/functional/redundancy/redundancy.kshlib b/tests/zfs-tests/tests/functional/redundancy/redundancy.kshlib
index 702268aee..b9b69e47d 100644
--- a/tests/zfs-tests/tests/functional/redundancy/redundancy.kshlib
+++ b/tests/zfs-tests/tests/functional/redundancy/redundancy.kshlib
@@ -360,12 +360,7 @@ function recover_bad_missing_devs
 #    expected state after a healing resilver of a healthy pool.
 #
 # 2. sequential - The pool is fully intact.  There should never be a
-#    checksum error, but the occasional checksum error does occur in
-#    practice.  Until the root cause is identified and resolved, tolerate
-#    a checksum error when scrubbing after a sequential resilver.
-#
-#    https://github.com/openzfs/zfs/issues/18307
-#    https://github.com/openzfs/zfs/issues/18319
+#    checksum error.
 #
 # 3. damaged - The pool was intentionally silently damaged.  Checksum
 #    errors are expected to be reported as the damaged blocks are
@@ -395,7 +390,7 @@ function verify_draid_pool
 			log_fail "Unexpected repair IO found for $pool ($cksum)"
 		fi
 	elif [[ "$replace_mode" = "sequential" ]]; then
-		if [[ $cksum -gt 3 ]]; then
+		if [[ $cksum -gt 0 ]]; then
 			log_must zpool status -v $pool
 			log_fail "Unexpected CKSUM errors found for $pool ($cksum)"
 		fi