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 AB0B62D063E for ; Thu, 8 Jan 2026 05:14:52 +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=1767849302; cv=none; b=WIS2Ld43L7A5NCQqyobiDENnv450W4BCmU7WSX78WRSWh5P/RcUkf74fP5Twqw+tfv2o7vE1JtJt3SYmLvWVFLJZeEJDj3RFdQd5VBjfnc6DbGPuhZU8go7GXEgT4iQaEO0wha2TaRXTgx6BQJgMlOOfOV4KjY6reVk11W3KUmc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767849302; c=relaxed/simple; bh=cXfeOsB/w9RNQpyoy/BPpRpp3EG96E/v51h4cT9VF84=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=kukzWbyJlOpgMP8Ru6HvPdtGW1Llg2t0fRDk5RlC37N0nM2SUIKqaq4oBBId45h3casLaoynP2NciWwVzpPw/CQ7X6uWYwVVjNbdUP7ZEwIuDqWTZ/EC6F4C5ZXcAjSMJd6jHw3ZtW/Wo0Z5VBRU8uxf07yEU9Xvg8XLhFDMkrQ= 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=qjTVw/X3; 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="qjTVw/X3" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sina.com; s=201208; t=1767849292; bh=fnRvKLnm75yZhQVLT5TD7xrf42u+Cwrn45aKVr9rdQI=; h=From:Subject:Date:Message-ID; b=qjTVw/X3sGHRJUaLCZeE1jX8QyB/n5fH7dxLDL2eyJ+JN0q210IThZGLWhfd/9mnJ f53ks9Xn8up6xDrb4YzZQbMp94RxiwliYXSM4FYH7VrxOeYTIEx+y3F8X+tJbhWfRz JVJRjSYpnZA+HmFXFlOHnzNYr6IpR1PJP98I6tzE= X-SMAIL-HELO: localhost.localdomain Received: from unknown (HELO localhost.localdomain)([114.249.57.85]) by sina.com (10.54.253.32) with ESMTP id 695F3D2400000AA9; Thu, 8 Jan 2026 13:14:13 +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: 5057564456834 X-SMAIL-UIID: 68FFC90FEDB4408A8A6D571F1F791FE8-20260108-131413-1 From: Hillf Danton To: =?UTF-8?B?546L5b+X?= Cc: linux-crypto@vger.kernel.org, qat-linux@intel.com, syzkaller-bugs@googlegroups.com, linux-kernel@vger.kernel.org Subject: Re: [syzbot] BUG: KASAN: slab-use-after-free in mutex_optimistic_spin via adf_ctl_ioctl Date: Thu, 8 Jan 2026 13:14:05 +0800 Message-ID: <20260108051409.2045-1-hdanton@sina.com> In-Reply-To: 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 > Date: Thu, 8 Jan 2026 10:56:03 +0800 (GMT+08:00) > > syzbot has found the following issue on: > > HEAD commit: 6.18.0 (custom build) > git tree: linux-stable > console output: (see below) > kernel config: (attached) > 1) is the uaf in mainline? 2) stop delivering reports with [syzbot] in the subject line because it is a used tag. 3) feel free to ignore -- more hands instead of fuzzer are needed to fix issues reported given regular syzbot reports.