From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 C2C2C47ECCA; Tue, 5 May 2026 13:50:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777989055; cv=none; b=q5ckcImYP3/Q34ocv94J0MmDjzv5JgX2kkdjo0w3TIDD+3DYzH+rS1AhHqYYEr+dFNP8Skeog5/orkdoLxuN+EuVzjA3z/diV7QPEiAFc386JpZu3ifvH5qaMdsC1NQTZnJI422IrfpMALmbbpFmgRD5tkJ+yru9P/61MRJ+0Cg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777989055; c=relaxed/simple; bh=dxSFC6cP0Ql4v7WRghtRbrO7p1KLq30hD6iB9ytHjPQ=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=dY+OWTkSaYYLp653vqnPIQZ/150HhCFrAGvcMJoA1VQlpIjaQApNNjTSq0X9Tn6e+OuVLLmoj4pJvYC67/PJelR5/VRM5teAwdLyED12ZdpE1O7CpD73+fcww3Qmh8ZEx0MqmyuhtPCFC8aYNg8ajDe2/P+uFKyqlsV2WS6AQKY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=NXL0JWbK; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="NXL0JWbK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4F434C2BCB4; Tue, 5 May 2026 13:50:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777989055; bh=dxSFC6cP0Ql4v7WRghtRbrO7p1KLq30hD6iB9ytHjPQ=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=NXL0JWbKeHOB5TbZ2tOAhi+JilCacuR1QFeBKjxUqRNnC/uIeph7g79PAM4AliO8K sAGlKexet3Xnv9/76S9iihKk910A7vnsb2AEWXUMuiiPwtTrDnL8MXoIw1SNT6tifY eYkjlJxGYzGU0U26TTmP5A7aZehFEVwjjRNEyRNC+0RQTgidsv5x+wuesDZYoQXf6g Sd/0Efa0JjmRRUylynOCsqvLcFRixX8ut2U0ZYiyQbon+4ma/M9C41ABoYbO9Lxnue yGEYFnh+J1jP9V5hhqT73qVG1xG2uy4EElu52/piAYZ8hVh5B7i6DovLhvNgb2lDgn jErSlhgT6l1Yw== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 02D003930235; Tue, 5 May 2026 13:50:07 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net, v3] net: mana: Fix crash from unvalidated SHM offset read from BAR0 during FLR From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177798900580.2064937.15974739888920715703.git-patchwork-notify@kernel.org> Date: Tue, 05 May 2026 13:50:05 +0000 References: In-Reply-To: To: Dipayaan Roy Cc: kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, leon@kernel.org, longli@microsoft.com, kotaranov@microsoft.com, horms@kernel.org, shradhagupta@linux.microsoft.com, ssengar@linux.microsoft.com, ernis@linux.microsoft.com, shirazsaleem@microsoft.com, linux-hyperv@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, stephen@networkplumber.org, jacob.e.keller@intel.com, dipayanroy@microsoft.com, leitao@debian.org, kees@kernel.org, john.fastabend@gmail.com, hawk@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, ast@kernel.org, sdf@fomichev.me, yury.norov@gmail.com Hello: This patch was applied to netdev/net.git (main) by Paolo Abeni : On Thu, 30 Apr 2026 19:47:12 -0700 you wrote: > During Function Level Reset recovery, the MANA driver reads > hardware BAR0 registers that may temporarily contain garbage values. > The SHM (Shared Memory) offset read from GDMA_REG_SHM_OFFSET is used > to compute gc->shm_base, which is later dereferenced via readl() in > mana_smc_poll_register(). If the hardware returns an unaligned or > out-of-range value, the driver must not blindly use it, as this would > propagate the hardware error into a kernel crash. > > [...] Here is the summary with links: - [net,v3] net: mana: Fix crash from unvalidated SHM offset read from BAR0 during FLR https://git.kernel.org/netdev/net/c/95084f1883a7 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html