From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp153-171.sina.com.cn (smtp153-171.sina.com.cn [61.135.153.171]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 928B7175A7B for ; Thu, 12 Mar 2026 07:37:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=61.135.153.171 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773301082; cv=none; b=GgIYZ6Krbo1gEq16KrqjszK4psSNWVk0M/E/KXlS34SgJA6mQeowjCTHnJTWCCOn390d0JCL3qkyt+0JFAmLsa8jgGNnl/mPIa1MrPX8hz2BG2/IE8bcHdC5drZzRS0CoEHr56jz9Nn+KhyenKx0tAr91xUEwFJu7MO0bNB5auw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773301082; c=relaxed/simple; bh=wANA8mNl5rEE1PmCUJGcIpowoF15a/Kf+XJ9ZcIrD+I=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=u9hVn+tdVvS6M6BmYYhY7eYB6MabrsfBUZ0ZNa4tPjrH8LUZJD59OhSOpIMqatan/f1hUAk3JadSGZUKGch+Xc7RZMIwdznczUcAtt+rtOeEC9sTStig1GwMT55+8VJdAHMBDdmVVRtnSUGe90jDIjoMMs4ySRd/JToO4oCChH8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sina.com; spf=pass smtp.mailfrom=sina.com; dkim=pass (1024-bit key) header.d=sina.com header.i=@sina.com header.b=M6iCVbhH; arc=none smtp.client-ip=61.135.153.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sina.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sina.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=sina.com header.i=@sina.com header.b="M6iCVbhH" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sina.com; s=201208; t=1773301075; bh=Z4kkNVp4GBLZUTFuFm3y1JEf8SqpCdJOcB24CYM853s=; h=From:Subject:Date:Message-ID; b=M6iCVbhHQxmGz85gqAJgwLxNiDUaJ50xe+NsAld91kQkmgWbK2/kP7GlLHqIKvLvK c/UkV/2MJL9osNNRgQHYkj4n2I8VTtpMHT8/G3yYTbUebENGk/c+cBAPZ/qrz5R70O JQhEjtavJYcSe8Ufw+wAwTfrLAmMtHTXf9p2IU4U= X-SMAIL-HELO: localhost.localdomain Received: from unknown (HELO localhost.localdomain)([114.249.62.144]) by sina.com (10.54.253.34) with ESMTP id 69B26D4700003A19; Thu, 12 Mar 2026 15:37:46 +0800 (CST) X-Sender: hdanton@sina.com X-Auth-ID: hdanton@sina.com Authentication-Results: sina.com; spf=none smtp.mailfrom=hdanton@sina.com; dkim=none header.i=none; dmarc=none action=none header.from=hdanton@sina.com X-SMAIL-MID: 5806506291842 X-SMAIL-UIID: A1807BA51CF04E86A982EB336FBF4FEF-20260312-153746-1 From: Hillf Danton To: syzbot Cc: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [net?] KASAN: slab-use-after-free Read in sock_def_readable (2) Date: Thu, 12 Mar 2026 15:37:37 +0800 Message-ID: <20260312073738.878-1-hdanton@sina.com> In-Reply-To: <69ad7ccb.a00a0220.b130.0003.GAE@google.com> References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit #syz test upstream master --- a/net/atm/lec.c +++ b/net/atm/lec.c @@ -474,6 +474,7 @@ static void lec_atm_close(struct atm_vcc priv->lecd = NULL; /* Do something needful? */ + synchronize_rcu(); netif_stop_queue(dev); lec_arp_destroy(priv); --