From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 1989B3845CB for ; Mon, 7 Sep 2026 19:15:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788808546; cv=none; b=hN1okJif6llSuXqKB1XJ4ps4wGySpaNd4YLDQQZTtB/ujygkTJ2m1wtq+twslQc8tO4ZnbU9YmlWpTxGUZjwKt7jZfZ9lI8uXM8+fGhBvDdecgsVAT0+yVGMP+7AUN08xh+HZ6v+cfyGd25fFEa7AC1zo5J1K14ZFfEl7jtDkOY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788808546; c=relaxed/simple; bh=XQXhzDCg2dhhu1WnZjNPmpaah8H+eGUxRVpDiA9aivE=; h=MIME-Version:Date:From:To:Cc:Message-Id:In-Reply-To:References: Subject:Content-Type; b=YGhhKNqOQZCneZAZxjNbWx1p2Ojl8nv8BQ50L7nTDX8fSu3N42i2D7Ph6MuEsRxgFkezivOOmBP5O+B2TNnEg+BvZkokq8Gm6Nw+6d1TiP348rDLGRdKE4YeF5HAyGMGepocbJKlvStehg2nl6hPD0Es3TZIFMAljnblhjM6LRw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=g0cSj6gQ; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="g0cSj6gQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A580D1F00A3D; Mon, 7 Sep 2026 19:15:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788808544; bh=tiXZzvH6IH4UX6JC04NiKtmHUrGl1MNxToT35sq2QiQ=; h=Date:From:To:Cc:In-Reply-To:References:Subject; b=g0cSj6gQKa4854Tbs8A/nuK08z6ueEgBcypPe2TwH7Pp+7XezeFSk0v9b2PylfX1N qA2XYtaXaENWsL+MUBCUOwhuOAb1rwDcctCbyOk/V5lf3Cs8DyV43+s8izbRPhHCGA wvj89PqNljsWxUK0NXjAcZyDjjaazUOnDKET1k8DB3SFT6iZ/1U1Rh/UNF//DcUTaC 4UnHufSBMBiIn6KeBdHqH2RQhAcT9lNtOMeDOzvuktBqxrrIMqccXZH3OtuTt+1TV2 vrTJrDj1tYzXICXpVo4GFiq4Rtf0p2yobo1QVth7lzPXEGsotujHKFYGEPAMeV6UH2 mHYjobaVPCdyw== Received: from phl-compute-10.internal (phl-compute-10.internal [10.202.2.50]) by mailfauth.phl.internal (Postfix) with ESMTP id B0AA4F40066; Mon, 7 Sep 2026 15:15:43 -0400 (EDT) Received: from phl-imap-15 ([10.202.2.104]) by phl-compute-10.internal (MEProxy); Mon, 07 Sep 2026 15:15:43 -0400 X-ME-Sender: X-ME-Proxy-Cause: dmFkZTE31xTmpyx5/rgzD8Yn08Xp4dnoKBm2ae8X5WOcf4Nj45ZwRG470q1Aox5KXGeh2t TpsnHVsFD9kjkEUj23D6SUarxwbsP724jABoOSS7UY7pOOSC1/xhrO4PYgof1WiFCNzoEO YC1TkKYWR2ITL9s0/4H/qHdmiEyBPEj913Xs4vPyibFri5o823i0tDIUGLhAXEiy2YHE2a tsG8h2sxphjOCFk/THMegNieNjeNq5/m6dcMeEL62dKB12/bb62uOpwgk+Imjp11GMOWGv W+XPF3l5A8zuc4n011G4Aj30S/jpsEHsenFcS/7SeGknsYjPS+PyAlK5t9mzuRGRbG8di7 36oVOC0Sh0DwvT9KNs7RBOWA9S367K/s+xIRQ3KKfPRa8mLHTTWyKXau45EXIuO8uwtWVw ckea5qv9mioeT7GoFpwXDr5bODsdJSh0lR3YCcnDYD9HZ6J/iQVuG/KHYEYA8AIE9k3WIE qRwe0mQhCYLRxw0nebiKp7uM21PuWuBzC8Do06rl+E5Z3hHSRx2dqFJ9c+D7nd1yIobZ6n 4Po1Wg+/hlZTgJlQzOwPkOm7+lSppg9QFKefQB75DEOj9ZqeLqu7gpi5AhE14w2+kxZEOS w4VeUuS0AqtISQbAj6oLq1LIgMgwFvXvMvgnd2oDtx4lDqB2UIJ449LGBdrw X-ME-Proxy: Feedback-ID: ifa6e4810:Fastmail Received: by mailuser.phl.internal (Postfix, from userid 501) id 8E4C37811F3; Mon, 7 Sep 2026 15:15:43 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ThreadId: AGBspSFnGaaV Date: Mon, 07 Sep 2026 15:15:20 -0400 From: "Chuck Lever" To: syzbot Cc: linux-kernel@vger.kernel.org, linux-nfs@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Message-Id: <4c018446-e4c0-457a-b2d1-a5bf856d0e2e@slotpi15m67> In-Reply-To: <6a9ef807.2bb5a69c.24b23c.0007.GAE@google.com> References: <6a9ef807.2bb5a69c.24b23c.0007.GAE@google.com> Subject: Re: [syzbot] [nfs?] [net?] KASAN: vmalloc-out-of-bounds Read in rpc_queue_upcall Content-Type: text/plain Content-Transfer-Encoding: 7bit On 9/7/26 1:44 PM, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: df2908090cda Linux 7.3-rc2 > git tree: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > console output: https://syzkaller.appspot.com/x/log.txt?x=1416cc8e580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=8c5c3949d762a91f > dashboard link: https://syzkaller.appspot.com/bug?extid=d5c77cabf7a3492aa650 > compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14daa071580000 The fix is already queued in nfsd-testing: https://git.kernel.org/pub/scm/linux/kernel/git/cel/linux.git/commit/?id=8e5890ef0296 #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux.git nfsd-testing -- Chuck Lever (Come to NFS bake-a-thon! https://nfsv4bat.org)