From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from r3-17.sinamail.sina.com.cn (r3-17.sinamail.sina.com.cn [202.108.3.17]) (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 1A61A282F38 for ; Thu, 12 Mar 2026 06:36:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=202.108.3.17 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773297373; cv=none; b=ip6u3QQmwLoxZPuuAkIjEdw42DwAldQ7F/HFEF5tsILPoODVWhYtN5qHIzjE+d+vlmJr8kSscvr42eNF3DLmgOqbWuXyUlHY6yUxbqt7qhdl7dCiz/9jWFAj8sztH6pOlJklVXywmMSyE/rJrE3vChRuvIER/aSunWIql3W078U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773297373; c=relaxed/simple; bh=RUGAA5TnKF92abtJ+Uz1ZdeU+Mbt8sjSOArSs1WAES0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=cemOLXsDCN749Ty0uxFt2DcHmx11sJXscsuaCqhSgdafkq97DpezkdK2FddV317dBxma4ACOMuwPI5i8EVblYWARBw1XpT0MgeTRfXl71tSAbiDYshVZUAQLX4FjhfLUx4Mu4yfogYQw+9lU3eTyUrUG5N8lAn8o8Y6TvdvMrrE= 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=B/pgMrW5; arc=none smtp.client-ip=202.108.3.17 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="B/pgMrW5" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sina.com; s=201208; t=1773297369; bh=JFNFlCJSuzcuydBWO47+N4/Fjq3wJ2f0ZLNYdgJ7EPY=; h=From:Subject:Date:Message-ID; b=B/pgMrW5m/nt8xJZFZU8ngBHknS+WmOaBtIzZDB87QT7hnhb4hQe8bd5JlaC3U3Xm V0FazT7zdkgfaX8yrs3Cbc22m0VbiTFARS/l58mWj8J56mJEOpar1re3p/OxyRk8D4 re2TM9fwVghScHQELudeViDWDv5ABbVYZt1c9208= 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 69B25ECE00001C73; Thu, 12 Mar 2026 14:35:59 +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: 7395696292127 X-SMAIL-UIID: 48CC99F1BB6A46B69C87A48BD715406C-20260312-143559-1 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 14:35:52 +0800 Message-ID: <20260312063553.861-1-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 --- 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); --