From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 30F14C761A6 for ; Tue, 21 Mar 2023 17:10:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230416AbjCURKx (ORCPT ); Tue, 21 Mar 2023 13:10:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42462 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230473AbjCURKt (ORCPT ); Tue, 21 Mar 2023 13:10:49 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0C6785372F; Tue, 21 Mar 2023 10:10:24 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 8A0DBB818D3; Tue, 21 Mar 2023 17:09:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 21E23C433EF; Tue, 21 Mar 2023 17:09:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679418590; bh=kdWqS/e+sKonowSJQi5knjG8RtTeulUae8t8lT/tj94=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ZgP/zney0RxkfxiYC0h0uNFKINgVFhMRkTFoDjmxpyVIimrPvegj7UxYkRjG86RG+ 4Ucse6+U0toZ5epVETfe6mlwEKHyODjgRn4liysLMficvDLpDgLKk8tCVPGQyAdDoZ 2rSFOupBs0aOwgaD4YASFB01x1OOq/07EQ4C1x70DfUhlljbEvwY0Iyq9Ydeu+rr/f DbHXuTXspAQXbNC7puuXYHlLpml2S+TGs3YxeKPyzaNsyECIkhqKNboa1u/IxoCpGH Ag+47bafIxmFwW21pA+alZjwI8ddcy/NfkKhpUel7FxEEL6h8mE4vmmsI9JCDm9+3x XH1d2qvmIN0dg== Date: Tue, 21 Mar 2023 17:09:44 +0000 From: Mark Brown To: syzbot Cc: akpm@linux-foundation.org, ckeepax@opensource.cirrus.com, jfs-discussion@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, shaggy@kernel.org, syzkaller-bugs@googlegroups.com, willy@infradead.org Subject: Re: [syzbot] [jfs?] KASAN: invalid-free in sys_mount Message-ID: <2d0114ce-a811-47e9-9a76-8c7a80f1faed@sirena.org.uk> References: <000000000000698e5d05f76c0adf@google.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="UhOUWIYICTHnIC7N" Content-Disposition: inline In-Reply-To: <000000000000698e5d05f76c0adf@google.com> X-Cookie: Will it improve my CASH FLOW? Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --UhOUWIYICTHnIC7N Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Mar 21, 2023 at 10:04:46AM -0700, syzbot wrote: > The issue was bisected to: >=20 > commit a0b6e4048228829485a43247c12c7774531728c4 > Author: Charles Keepax > Date: Thu Jun 23 12:52:28 2022 +0000 >=20 > ASoC: cx20442: Remove now redundant non_legacy_dai_naming flag > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=3D12756e1cc8= 0000 > final oops: https://syzkaller.appspot.com/x/report.txt?x=3D11756e1cc8= 0000 > console output: https://syzkaller.appspot.com/x/log.txt?x=3D16756e1cc80000 This does not seem especially credible for the backtrace provided: > slab_free mm/slub.c:3787 [inline] > __kmem_cache_free+0xaf/0x2d0 mm/slub.c:3800 > __do_sys_mount fs/namespace.c:3596 [inline] > __se_sys_mount fs/namespace.c:3571 [inline] > __x64_sys_mount+0x212/0x300 fs/namespace.c:3571 > do_syscall_x64 arch/x86/entry/common.c:50 [inline] > do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 > entry_SYSCALL_64_after_hwframe+0x63/0xcd which is nowhere near ASoC, let alone that specific driver. --UhOUWIYICTHnIC7N Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmQZ5NcACgkQJNaLcl1U h9BJBgf/WJnuTPyzPxNZcVE/Y2Nn4WhuqOMTenRwekqMToG4fEK99ITA1NYnWBRy ixCUajNCuBvf2X6YmjYiNsf79Nio8JVdamUSEpDV5mHq0zpN4B6txrZCSm1FFXL9 nrHe02bAEoaYdrLAS8/mYGQRckp8A7cJYEZnzeC1wo43Mk3qbFrnuezKi52VRUNv 2wGPCVCXAlp7yEDfTObNGAAOg6m6009JBioTcQq9IeCog99a7oFYud7kQhvFebA8 K7PDgAbUAY+WD9bE0ba/Xg3P6xjpq7KpEW+SIck1UpsrKpLJlK54kP9eXgMzwhRx fPddOZeXHclJfKKPwlcYKI6yoZeDsw== =uJQW -----END PGP SIGNATURE----- --UhOUWIYICTHnIC7N--