From 7b3f3d49654a30815599a0a2b0cf89b7af0b95b9 Mon Sep 17 00:00:00 2001
From: weishu <twsxtd@gmail.com>
Date: Tue, 27 Dec 2022 15:55:54 +0700
Subject: [PATCH] kernel: fix sepolicy db size incorrect

---
 kernel/selinux/sepolicy.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/kernel/selinux/sepolicy.c b/kernel/selinux/sepolicy.c
index 588b796a..afdb9fcc 100644
--- a/kernel/selinux/sepolicy.c
+++ b/kernel/selinux/sepolicy.c
@@ -55,6 +55,16 @@ struct avtab_node* get_avtab_node(struct policydb* db, struct avtab_key *key, st
         avdatum.u.data = key->specified == AVTAB_AUDITDENY ? ~0U : 0U;
         /* this is used to get the node - insertion is actually unique */
         node = avtab_insert_nonunique(&db->te_avtab, key, &avdatum);
+
+	int grow_size = sizeof(u16) * 4;
+	if (key->specified & AVTAB_XPERMS) {
+		grow_size += sizeof(u8);
+		grow_size += sizeof(u8);
+		grow_size += sizeof(u32) * ARRAY_SIZE(avdatum.u.xperms->perms.p);
+	} else {
+		grow_size += sizeof(u32) * 1;
+	}
+	db->len += grow_size;
     }
 
     return node;