From dd9ba2c769f020c214d41f74acc74461971e24c2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=9B=D0=B5=D0=BE=D0=BD=D0=B8=D0=B4=20=D0=AE=D1=80=D1=8C?=
 =?UTF-8?q?=D0=B5=D0=B2=20=28Leonid=20Yuriev=29?= <leo@yuriev.ru>
Date: Mon, 13 May 2024 21:18:30 +0300
Subject: [PATCH] =?UTF-8?q?mdbx:=20=D0=BF=D1=80=D0=BE=D0=B2=D0=B5=D1=80?=
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---
 src/core.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/core.c b/src/core.c
index e34952ef..4a230101 100644
--- a/src/core.c
+++ b/src/core.c
@@ -12232,6 +12232,22 @@ static int validate_meta(MDBX_env *env, MDBX_meta *const meta,
     return MDBX_RESULT_TRUE;
   }
 
+  if (unlikely(meta->mm_extra_flags != 0)) {
+    WARNING("meta[%u] has unsupported %s 0x%x, skip it", meta_number,
+            "extra-flags", meta->mm_extra_flags);
+    return MDBX_RESULT_TRUE;
+  }
+  if (unlikely(meta->mm_validator_id != 0)) {
+    WARNING("meta[%u] has unsupported %s 0x%x, skip it", meta_number,
+            "validator-id", meta->mm_validator_id);
+    return MDBX_RESULT_TRUE;
+  }
+  if (unlikely(meta->mm_extra_pagehdr != 0)) {
+    WARNING("meta[%u] has unsupported %s 0x%x, skip it", meta_number,
+            "extra-pageheader", meta->mm_extra_pagehdr);
+    return MDBX_RESULT_TRUE;
+  }
+
   /* LY: check signature as a checksum */
   if (META_IS_STEADY(meta) &&
       unlikely(unaligned_peek_u64(4, &meta->mm_sign) != meta_sign(meta))) {