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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5DED8C6FD1D for ; Tue, 21 Mar 2023 17:09:54 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id CDE7A6B0088; Tue, 21 Mar 2023 13:09:53 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id C8F7C280002; Tue, 21 Mar 2023 13:09:53 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B56A7280001; Tue, 21 Mar 2023 13:09:53 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id A2B096B0088 for ; Tue, 21 Mar 2023 13:09:53 -0400 (EDT) Received: from smtpin21.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay09.hostedemail.com (Postfix) with ESMTP id 7D69B80123 for ; Tue, 21 Mar 2023 17:09:53 +0000 (UTC) X-FDA: 80593542666.21.CC32628 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf24.hostedemail.com (Postfix) with ESMTP id AF28C18001D for ; Tue, 21 Mar 2023 17:09:51 +0000 (UTC) Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b="ZgP/zney"; spf=pass (imf24.hostedemail.com: domain of broonie@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=broonie@kernel.org; dmarc=pass (policy=none) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1679418591; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=UMMBdaBU6yDrBXlhTuj5kCrIJO/9Anoju3GgagkTzHc=; b=OHT9z9JRuS3iFP4dzLIINAYVfbe5YlwpU8FHloTGUGAn4B16gMIkL7IjvFUL3EZDr0zFf7 Ps9licIYCa33Sdr+Ff+WnomUmLwEAJuPMFZzRGl9hCHcH/fE0Xjq3D4TH68pow8HYpuHsU Kjf363LpHMe3g1kT8kBTFhmc9d38P5s= ARC-Authentication-Results: i=1; imf24.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b="ZgP/zney"; spf=pass (imf24.hostedemail.com: domain of broonie@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=broonie@kernel.org; dmarc=pass (policy=none) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1679418591; a=rsa-sha256; cv=none; b=AYofc19Xl0Mukro3DnGa8RpTIGSk8fsVO0dJSTLic0wFZKAyL07JgeVDIDcqTwvA12DibT anU6CRpbQTzohiitIQgp92Tffga3AUAgvibzG4GMqTw+sXusTe01f+8agyh1HcsDz1T+Of lOmaGNDjer+4sio/TCOnHVeCC4NCz5A= 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 dfw.source.kernel.org (Postfix) with ESMTPS id DCEC861D0F; Tue, 21 Mar 2023 17:09:50 +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? X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: AF28C18001D X-Rspam-User: X-Stat-Signature: 3ceq4sod1q5qz3zxs3bny8t3hmh6adom X-HE-Tag: 1679418591-555161 X-HE-Meta: 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 xSrQyRpF 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: --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--