From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qv1-f51.google.com (mail-qv1-f51.google.com [209.85.219.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4B0143A8F5 for ; Mon, 12 Feb 2024 14:07:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.51 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707746840; cv=none; b=ls4nZiWgpmtwuo8OB2VbyjJTTT6aJAPmQA6TUuR3beh+TrGT6LCcmwFH2ERShjxwMSp7Ki07eE+GHf4a9Y+/UF0MKy4d54WspC0ispCweZNfNtVNQkeUKHHW3k6TwOgDJJn3+enhUp2YKlz604J9a0KtXmBXWgvPlBaOO/fv34s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707746840; c=relaxed/simple; bh=X75lLwzkhXfaAKeD9RVPUbK5SugflzA3FB+ADjwrXQs=; h=MIME-Version:References:In-Reply-To:From:Date:Message-ID:Subject: To:Cc:Content-Type; b=tCubWD5GKdZq4RKX+QLBDwu9mweGYACJLJnFNB5N8aiZYq/E/roootmgs7ANDMKnJAw+ew5vfduTDNQ2+jBRIbL9DLhUKk4rOMyxIIL4aHFNVlOOxcsAVyzTZQyLHr4MlFOJWGodYoA9SUC/4XfY0gJZtKf20r6KVDGyEvIefjs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=h7TYYfp5; arc=none smtp.client-ip=209.85.219.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="h7TYYfp5" Received: by mail-qv1-f51.google.com with SMTP id 6a1803df08f44-6861538916cso18436276d6.3 for ; Mon, 12 Feb 2024 06:07:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1707746838; x=1708351638; darn=vger.kernel.org; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=X75lLwzkhXfaAKeD9RVPUbK5SugflzA3FB+ADjwrXQs=; b=h7TYYfp5E/fTBL5VhVihBLSj0ev72vuRI0MaiSXwcjn8PsJSJ5xgFCJttpyKGYDAfs KV31knWaiRccn1dUwl0LZMKoqRr+w1fMzY4lbydcFcqU2ox8mQ3IxcFTFdcvKYFgWcHa 9YuHu8+7bcmYuf5G3SGiRCfI2Qi5NarQf7Yr6t2seVm2t81G/y9RgGX6DlbLGP5/gbC8 cyObJgQbYaQ4CZXcKeUih+P1qI7O/uNcTcTsh9nxR9Wki7x3Lx3SLjEBPoSA2Y0BLJzD H+42nFDpu6/ga4wE2cl7vKF3kp4NmZiKx/X709F/XA3MXg3vUiOnekHlBj5Nrd8slPZ3 k11A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707746838; x=1708351638; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=X75lLwzkhXfaAKeD9RVPUbK5SugflzA3FB+ADjwrXQs=; b=KEDZAJwWtWTjHB2Mu6EZk3F6a+9KnqlMVdFVjc4HDVx2G16y2Y7xGiq/FtBXPcSz7Y yjeJj0vFNBUh/5kianXalSr0MYRK8z7qheSraTW7/TiFI0sK/6EreFCsG3PfhRJIMwpP XbuPaUaB6x0KMbwuuJsfbhHRboLgLP1gU0gxgFaGbf6qKg8EDv1AlnzrZS9TioNzunzV gg1Rs5lpNTyljSVrIuSnyf9O17np1DmZP9lnQjy7uP326xAAuEvRVBFsHDh7lAF7/QXI g6QxWqrsz/Lc58nzNAuQ2wRsnop9aFJ0DpeQ1kVDTuVD9pfcTjuzvbYOoRMpUKPPnzGS TLEw== X-Gm-Message-State: AOJu0Yyn916R2ibL6Y3VNlVte4BVNsDV0fTYk3MKk9miId0zsKNRVYML u2Rct2tcNCLWQ/FVXwD0RXvdqyW50dBW8QxzVsDGtAZNEeHrGloR1IjvBxR/9to6+ICQVAzsNz3 5CptXbRFpWbtU2nbdie7ib5Y211MkmkWMsVQO X-Google-Smtp-Source: AGHT+IGjwPhN6JqVQ82AFNLhiMQTIuzrYEzVitUlSMWygLKcCDX+757lakc71GgIQDPB7QuK/lI1ZJQD6dQcrwSYUxQ= X-Received: by 2002:a0c:ca81:0:b0:68c:9621:af26 with SMTP id a1-20020a0cca81000000b0068c9621af26mr8077667qvk.15.1707746837886; Mon, 12 Feb 2024 06:07:17 -0800 (PST) Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <0000000000004b1fa70610fa3230@google.com> In-Reply-To: From: Alexander Potapenko Date: Mon, 12 Feb 2024 15:06:41 +0100 Message-ID: Subject: Re: [syzbot] [io-uring?] KMSAN: uninit-value in io_rw_fail (2) To: Jens Axboe Cc: syzbot , asml.silence@gmail.com, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" > This was fixed a while back, not sure why an old kernel is being tested. But > in any case, the result of this was just garbage in cqe->res for a request > that was prematurely errored. Nothing to worry about. In any case: Unfortunately KMSAN is broken at head, we're waiting for https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=558c04d9535d9d8911162db4d0d758f8f4cda37b to reach mainline.