From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp153-163.sina.com.cn (smtp153-163.sina.com.cn [61.135.153.163]) (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 845E53C6A2C for ; Fri, 13 Mar 2026 18:50:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=61.135.153.163 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773427811; cv=none; b=J59QpNip9ox/G3JmXZevcKSTRbR8P65GHe0zz8Zee3JrAHG+jAnp5PlIeobiVtBaYgMp4KNgo2hO79Pzco7FxnhaunjHb+Um1z0120yVSQchhJB3Ge1WR/QUc/HAgNdvtiQ+kZVRbFOAUaeixy4URCqHa9zuK3lXO9jtTm3+XGA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773427811; c=relaxed/simple; bh=+/6f7lcovdV1JV7n8cWQh+AHEfvOD68Tij4cY1fMMN8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=u/3hfcio97TdHuhuwRO9N6iYU51JNBKT61ojDFKGDLJhdIvZc2SBmiEtbgfAJo1vcovPQ147LKC6AC9nxlaG1yquLLdd1XKT/e+t7QPcji8vtXpCzGxBi30Ld+W316U8tA5Pywh6XcmgLxchojdh0TwUM7bbt0g7i0ll2z/41o4= 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=ivIWYE4e; arc=none smtp.client-ip=61.135.153.163 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="ivIWYE4e" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sina.com; s=201208; t=1773427804; bh=ysDfa56P4wk0eznBtISUh0SPoagPvxZmJNePrX76WgI=; h=From:Subject:Date:Message-ID; b=ivIWYE4eZSfDOltrCEv+ITqVSCPwGR+eyjexY7thwAcXabDF1uMV4OE62PozuhuKa YiTsdw1zAQdMzYTsikZMr/kXHSEgEFCUn2YiWygTKrQLGN91i90wNmrxq4eKTduaAA DklkYrF8W4la8sfPraK3F4ojomCWi/VBHeycnUUI= X-SMAIL-HELO: localhost.localdomain Received: from unknown (HELO localhost.localdomain)([114.249.62.144]) by sina.com (10.54.253.32) with ESMTP id 69B45B130000711F; Fri, 14 Mar 2026 02:44:36 +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: 8268614456888 X-SMAIL-UIID: D044B0F27DA44FE28D5727B1D376423C-20260314-024436-1 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: Sat, 14 Mar 2026 02:44:31 +0800 Message-ID: <20260313184432.913-1-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 651690480a96 --- 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); --