From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yw1-f172.google.com (mail-yw1-f172.google.com [209.85.128.172]) (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 1073872631 for ; Wed, 18 Feb 2026 02:53:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771383211; cv=none; b=QhSRrgLKGIloZqGReOI4lJRafm57wKEdK+F7u4vowhbNpDEfO/EXF2n++MdgtkxNE4rNEqpckdu78hIoP4hDU/v6Vz7bMkKwOMgQ9KBGFBd5U8nQ0ixEmC/GN+CkiSS8mQvpS2rahSH5Z/zPxBO00Hb/+3yY5Fz1wAd+cqZ1nWg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771383211; c=relaxed/simple; bh=ac2XxHEaTkFuv7UyIRLD6z604IhhBl4SwJsAujiwFK4=; h=Mime-Version:Content-Type:Date:Message-Id:Cc:Subject:From:To: References:In-Reply-To; b=RMxcCIN/RC7TA1QEp/0PvwCsaMTHrDAPc37fJbbX2Ma93MefJczAJqu35G5ud/yI6yQrW8r/deXrKACr1HIrJEyJpsPOeU/xtfttNqjQngeaQ30+sGVQsWxhkGW/Fqngl++IszKRPgdoXtp61We4epHAxJYkZFAxyItxtDskLD4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=gayNSGhB; arc=none smtp.client-ip=209.85.128.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="gayNSGhB" Received: by mail-yw1-f172.google.com with SMTP id 00721157ae682-79088484065so40271467b3.1 for ; Tue, 17 Feb 2026 18:53:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1771383209; x=1771988009; darn=vger.kernel.org; h=in-reply-to:references:to:from:subject:cc:message-id:date :content-transfer-encoding:mime-version:from:to:cc:subject:date :message-id:reply-to; bh=ac2XxHEaTkFuv7UyIRLD6z604IhhBl4SwJsAujiwFK4=; b=gayNSGhBayeHXXe6sVnSPEsFluy7TM4ZsSa04g805udc/9f6wxPabGnyMTfwOh3vHl glyQ8cB+Al16uztpznSrw4Yf53vyZtVlgc37LV/UyXCZ/nTULZypigHmT3wCWJVtWAvA 2ajcUfT+WlhYgQlnlP6Ji0rwxU6Az8QWduWbxnaUeR382QwUqxZdILS+JX/fcU4/XlFl BoKv/OMclQBZ65XfPrOSUdaTQoKacJit4LU+J/8ZtvLvW0kJXsmRajAuq2DP2/mulajh 5j67UUzVhN+sl6u5PjjkellBkRor34mfUT61fs1Yh5VRVgQdM1cq+mDYRwh1aPC+4zmp JMPw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1771383209; x=1771988009; h=in-reply-to:references:to:from:subject:cc:message-id:date :content-transfer-encoding:mime-version:x-gm-gg:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=ac2XxHEaTkFuv7UyIRLD6z604IhhBl4SwJsAujiwFK4=; b=JBtVeEMhym0yaXeyonJwAvY6LI8UQp9/haYnrm/Vy72GbVCHrRJpPCiw+Z9b4V5n1n bteDsE8UkrP5zniReY8FPyBlumrV2nEZVioYIaXar87d+PRrHEdIK51Ot0nvhNcFCKqb nt8oPP3em9oT8Mq/ni6PNzT4uX+9QewIWjNW/+ryDNuY9dSp7HDPw7GGrW48K7plvBqC i//oajuaYBLxhiAXfzPKQcDOd56xKMuS/qxEX4SCrwgnXhKr9qg3Bn5QngftdDgLwc+3 c2wSI9L00iXDgzztUeq7esKLwDK0dJi5Q6GMl/eDPwmLOMFYiDu6ojyCBxaMXlIGOYBS quDw== X-Forwarded-Encrypted: i=1; AJvYcCWBKYY2G5KCMSukxe9M/UwXuJf5eYBZj1GxKpCcZXbmBawO5kBYRwf9FZx4kRfQCSjujVgvZOAVg07wfxY=@vger.kernel.org X-Gm-Message-State: AOJu0YwktkxD0pljzV9fIRPLnn9WMJJ5YDtdkc7bIGKC6mRFIz3fyuPz 25oT2iV++dml6F8Q+VV58V17/1AHLQBkGbbXJQQuFJvOfpaZEPelM7LT X-Gm-Gg: AZuq6aInJ9P3u5DhGAnvxKr4Hc+2EIbAXue10OH1pXoyErrzaiJ85rI/PQViZKFwWyA bjjHrN2xrJ9pqmfQfG1syyxJTRqwIMa6GeEPCTHjqfR2QggbercCiHkaB0BvSqt2CtUj72qSaJZ 2NHtyonjANchoEH3t5dXJXp9KSt0utHTd3e9kRJBKSKVRCATIwquM1r9n2Ww4Jco72GcPUhObtJ yg5ebpFgZT9XbDRzTQlSQzDnPY3PGYObgBUexIMHRNv42Dx4BQoMyj5ZXWxWnvyegq6t9cUCyH9 DvWA0lPACNKO8dkxPW2L5reiPAjOqfhU3Ojsd2eeQ/5ov8jwDez7Rc9/9P8zkV3yqgSp7AcPq0g lyq5KCN/4EzataKbgZDwJ2Z9b8VvwVcCuLRnhWm71TSk5BaY1uMJ7YKHn0tc/N8bEKM69OfNOKZ qReMSmKfe4TWvhv++NBPbavlSwrI0wSHfCfMALXeSxrJFu7AMyFJ181YwbNHDqu1dRdg6xx+7St l70WbxMPgDJac3k/1ldYSN6Xnj1FzS1v7d2gmZwLHZSAqGXjOUEhQ4eOzwdIg== X-Received: by 2002:a05:690c:fca:b0:797:e4f4:72a6 with SMTP id 00721157ae682-797f717b016mr6632277b3.13.1771383208974; Tue, 17 Feb 2026 18:53:28 -0800 (PST) Received: from localhost ([2601:7c0:c37c:4c00:e3a8:26f7:7e08:88e1]) by smtp.gmail.com with ESMTPSA id 956f58d0204a3-64c22ead7f0sm5423023d50.9.2026.02.17.18.53.28 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 17 Feb 2026 18:53:28 -0800 (PST) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Tue, 17 Feb 2026 20:53:11 -0600 Message-Id: Cc: , , , , , Subject: Re: [PATCH] x86/hyperv: Fix error pointer deference From: "Ethan Tidmore" To: "Ethan Tidmore" , , , , , , , , , X-Mailer: aerc 0.21.0-0-g5549850facc2 References: <20260218024351.594068-1-ethantidmore06@gmail.com> In-Reply-To: <20260218024351.594068-1-ethantidmore06@gmail.com> On Tue Feb 17, 2026 at 8:43 PM CST, Ethan Tidmore wrote: > The function idle_thread_get() can return an error pointer and is not > checked for it. Add check for error pointer. > > Detected by Smatch: > arch/x86/hyperv/hv_vtl.c:126 hv_vtl_bringup_vcpu() error: > 'idle' dereferencing possible ERR_PTR() > > Fixes: 2b4b90e053a29 ("x86/hyperv: Use per cpu initial stack for vtl cont= ext") > Signed-off-by: Ethan Tidmore > --- Just noticed typo "deference" ignore this. Thanks, ET