From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 A1A9F6104; Thu, 18 Jan 2024 03:58:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705550324; cv=none; b=qkp/fjYgSRanhrZ042SGwpne0Q4OCw7iTNk2Kf5C5y3VVdmY7vzmN+vsTiynzdYpcGWoRUZgpDnD5tKbxMm9jiTO/+4HvwDBUuvc21GO2iHqxqjXKiJ55Y9BiTjIynAqzP4PQlA7WvfiRp79nFskUMDsyO7ugPjdkbIJWFyUC0Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705550324; c=relaxed/simple; bh=OSo5PfdHNrhDXM3jaf4Kia103Tf7d+2XdB2eMho5tnk=; h=Received:DKIM-Signature:Date:From:To:Cc:Subject:Message-ID: References:MIME-Version:Content-Type:Content-Disposition: In-Reply-To; b=DF9sYvQbUui2NzUQahbkwm1X9p+koa0Gd2O2KZsPIyMEuqtH1uk09Ze/DfnCZnOQa+OIOb7Dw898+u7Ej1gUIMdOHbw/VIeflXK4LsZXsGZCGBSmjGN3i19h+P0re3LKBnX21/f+7gvtM/e2o0zjEUPvv3lfFkE/KJnkEMNPFdc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WPV2WCPg; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="WPV2WCPg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D79D1C433F1; Thu, 18 Jan 2024 03:58:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1705550324; bh=OSo5PfdHNrhDXM3jaf4Kia103Tf7d+2XdB2eMho5tnk=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=WPV2WCPgVhKu1PyVjnU/7GII0F1EJE3futnmXCd213USbwVAinXpyKP0hVEdE8gmE uSTSuikkGIqpZAR6KqEk13ok+ccKTXX+3kt3IQ+l2aabkIdnjSD9k1LXCvjaz1gHG0 WsgeRkpLze4GQP2mQPF+UqtioPVFTUjtCPRu3iTocMMuMTs0HpMkFF23bX2SRF8ACd 6R/awD2fKU+NknNmcIm+ylLvndXnWvlIgH1FczqrHwNvsWRT6ZjxTKL1pj0jYzT7mQ NOMdApkmLRJDIhwEqMrim7wyx3UiP85E39jbIZLnXX2zqearAEOSOPotoIBCCPHji0 jsOy93iXDhxfA== Date: Wed, 17 Jan 2024 19:58:42 -0800 From: Eric Biggers To: syzbot Cc: chao@kernel.org, eadavis@qq.com, jaegeuk@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] [f2fs?] KASAN: slab-use-after-free Read in destroy_device_list Message-ID: <20240118035842.GC1103@sol.localdomain> References: <000000000000aac725060ed0b15c@google.com> <0000000000009fff64060ee0c1b7@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <0000000000009fff64060ee0c1b7@google.com> On Sat, Jan 13, 2024 at 08:59:04PM -0800, syzbot wrote: > syzbot has bisected this issue to: > > commit 275dca4630c165edea9abe27113766bc1173f878 > Author: Eric Biggers > Date: Wed Dec 27 17:14:28 2023 +0000 > > f2fs: move release of block devices to after kill_block_super() > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10639913e80000 > start commit: 052d534373b7 Merge tag 'exfat-for-6.8-rc1' of git://git.ke.. > git tree: upstream > final oops: https://syzkaller.appspot.com/x/report.txt?x=12639913e80000 > console output: https://syzkaller.appspot.com/x/log.txt?x=14639913e80000 > kernel config: https://syzkaller.appspot.com/x/.config?x=878a2a4af11180a7 > dashboard link: https://syzkaller.appspot.com/bug?extid=a5e651ca75fa0260acd5 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=167b0f47e80000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11255313e80000 > > Reported-by: syzbot+a5e651ca75fa0260acd5@syzkaller.appspotmail.com > Fixes: 275dca4630c1 ("f2fs: move release of block devices to after kill_block_super()") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection > #syz fix: f2fs: fix double free of f2fs_sb_info