From ea08eeccae9297f7aabd2ef7f0c2517ac4549acc Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:18:26 +0000
Subject: [PATCH] write in 30M

---
 kernel/net/ipv6/exthdrs_core.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/kernel/net/ipv6/exthdrs_core.c b/kernel/net/ipv6/exthdrs_core.c
index da46c42..49e31e4 100644
--- a/kernel/net/ipv6/exthdrs_core.c
+++ b/kernel/net/ipv6/exthdrs_core.c
@@ -143,6 +143,8 @@
 			optlen = 1;
 			break;
 		default:
+			if (len < 2)
+				goto bad;
 			optlen = nh[offset + 1] + 2;
 			if (optlen > len)
 				goto bad;

--
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