linux-kernel - Re: [syzbot] [wireless?] UBSAN: array-index-out-of-bounds in ieee80211_rx_mgmt

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Message-ID: <tencent_78F762B76A86D9D36003690962E3BE844205@qq.com>
Date: Tue, 17 Jun 2025 15:46:47 +0800
From: Edward Adam Davis <eadavis@...com>
To: syzbot+6554b492c7008bcd3385@...kaller.appspotmail.com
Cc: linux-kernel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [wireless?] UBSAN: array-index-out-of-bounds in ieee80211_rx_mgmt_beacon

#syz test

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index ce377f7fb912..556ce95e0b0f 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1278,7 +1278,7 @@ struct ieee80211_ext {
 			u8 sa[ETH_ALEN];
 			__le32 timestamp;
 			u8 change_seq;
-			u8 variable[0];
+			u8 variable[];
 		} __packed s1g_beacon;
 	} u;
 } __packed __aligned(2);