From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id EF4122DC773; Fri, 14 Nov 2025 06:03:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.77.154.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763100234; cv=none; b=SpLKNqpZ2qXfVUvt8BA0JKNHY/hR2suPChnkMlLL5k5PioozDszTFfBu3QzKQW1n4zBCu5aESyPYuhBz5bLFDuTAbvh60UYsCD2NzWlyxcK5AZ+XJ27bYriBkwodVQOFigJ+K4P++j0b/sGgQUJfyCY79EW7Win2tMhdrxH/rm8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763100234; c=relaxed/simple; bh=O4uiiIpAydyY7Vc6U2+eMpL65iQUfjhhkVbZHJEA3H8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=PzMh/FH+Z+J71hkxf+u6lUGBmKkh/8Or20vJ5C/kPZVJ8H1hh9xHrgjmoY7H3AdWmyeljV9pqM/m9Tfs+Fcxv2G15yUnOkM/evzZ6J5t5X/mvcagDd95SLroFHO7d+o28G9xsWo8UCXDLQjMnUrFFigQMgB6LA/QcAMcxzsNUXk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b=bIgPAMGJ; arc=none smtp.client-ip=13.77.154.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="bIgPAMGJ" Received: from [10.95.76.239] (unknown [167.220.238.207]) by linux.microsoft.com (Postfix) with ESMTPSA id CA6B6201AE49; Thu, 13 Nov 2025 22:03:47 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com CA6B6201AE49 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1763100231; bh=O4uiiIpAydyY7Vc6U2+eMpL65iQUfjhhkVbZHJEA3H8=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=bIgPAMGJ1EapWd3QYgfFzn8BJ2wvA2+BvvhXipstsGxOdOD2qKo09lyyttmx5V8bq CpM6JBMaemFhMvJkB58Nf6jBXUXugmVssx2LyvlwoeNtGEGymdryHMq2au7bkaESPm idCHiQALdNrxuxhB3SVOH6OxrfFVr3YB8raxr/C0= Message-ID: <7a38c04d-4e54-4f1a-96fd-43f0f11ab97b@linux.microsoft.com> Date: Fri, 14 Nov 2025 11:33:45 +0530 Precedence: bulk X-Mailing-List: linux-hyperv@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [REGRESSION 6.12.y] hyper-v: BUG: kernel NULL pointer dereference, address: 00000000000000a0: RIP: 0010:hv_uio_channel_cb+0xd/0x20 [uio_hv_generic] To: Salvatore Bonaccorso , Peter Morrow , Long Li Cc: 1120602@bugs.debian.org, linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, regressions@lists.linux.dev, stable@vger.kernel.org, John Starks , Michael Kelley , Long Li , Tianyu Lan , "K. Y. Srinivasan" , Haiyang Zhang , Wei Liu , Dexuan Cui , Greg Kroah-Hartman References: Content-Language: en-US From: Naman Jain In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: base64 DQoNCk9uIDExLzEzLzIwMjUgMTE6NTkgUE0sIFNhbHZhdG9yZSBCb25hY2NvcnNvIHdyb3Rl Og0KPiBQZXRlciBNb3Jyb3cgcmVwb3J0ZWQgaW4gRGViaWFuIGEgcmVncmVzc2lvbiwgcmVw b3J0ZWQgaW4NCj4gaHR0cHM6Ly9idWdzLmRlYmlhbi5vcmcvMTEyMDYwMiAuIFRoZSByZWdy ZXNzaW9uIHdhcyBzZWVuIGFmdGVyDQo+IHVwZGF0aW5nLCB0byA2LjEyLjU3LTEgaW4gRGVi aWFuLCBidXQgZGV0YWlscyBvbiB0aGUgb2ZmZW5kaW5nIGNvbW1pdA0KPiBmb2xsb3dzLg0K PiANCj4gSGlzIHJlcG9ydCB3YXMgYXMgZm9sbG93czoNCj4gDQo+PiBEZWFyIE1haW50YWlu ZXIsDQo+Pg0KPj4gSSdtIHNlZWluZyBhIGtlcm5lbCBjcmFzaCBxdWl0ZSBzb29uIGFmdGVy IGJvb3Qgb24gYSBkZWJpYW4gdHJpeGllIGJhc2VkDQo+PiBzeXN0ZW0gcnVubmluZyA2LjEy LjU3K2RlYjEzLWFtZDY0LCB1bmZvcnR1bmF0ZWx5IHRoZSBrZXJuZWwgcGFuaWNzIGJlZm9y ZQ0KPj4gSSBjYW4gYWNjZXNzIHRoZSBzeXN0ZW0gdG8gZ2F0aGVyIG1vcmUgaW5mb3JtYXRp 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