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 87C182F30; Fri, 7 Aug 2026 22:50:58 +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=1786143059; cv=none; b=Fi457dWOlDmXRCTodnviJWAZY/MC1Bfc+kJYWB22k0NrZOgttJnL6No8vNYxsq+5xFv7a4PGpABdosjvZk/PiSbihoFiEt/q0VNC7cxtOlLoak0rgB+0wWzvLPVqh7b3uyYN9IUXRqsf9zB5BW3jX62mKlUVxDvTLgQ5JGVp5hY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786143059; c=relaxed/simple; bh=VeuRcAmobwZiWUzuEPai4P2mHmegSSauMujXjG5LCYA=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=DHRjFLn6XRmUEKrxIXFtl6KKJPHGsMPXy8HFwJ2Vxhf2Ptdd4mmnA8j0WiD5+YX806I0LGaTtfCdD1g9B0+foyJJmGvCbI55iZw5burj0W7s0p92arn5buE1X99XJGs0MNUnY1GbEOtXVN2pf3TB/5sLLnVb1lOzyUSs/H+WikI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KHE7KcG7; 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="KHE7KcG7" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 22B271F000E9; Fri, 7 Aug 2026 22:50:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786143058; bh=b6jraoRloGXuCQya4sCtCNvzLdlYdYZd5F6GInK3IWo=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=KHE7KcG7YlNzbRE1zzQJfwMdJ0QsiLvuOMcviVyHbi5xsimnk28Ba68VYN9qWOft5 JlOXD8jktPYk/16Of90gjt+eMHk/FypEOfZY57o6dTcBw507o29MyGrIbNQrR3swZ6 xmq+0mJsSjvE14SJpz3a/HJQE2zK6UCcw9BqGTuj5OZVNul86phLIwkbU00HFAvXOd 1KDr+wzFPV7MOHvQ7YbJwoh3Ra5GUUO1sInCe5e+5WkpO9Bx/pSbOFPt8VAgm3TgWr Ch/0keCWxPMpylkin8441nOp6g3NDGvboFAcXohpN7ZvLCIwpF6V9Ev9XHzzYQhOBQ FsL05rBd8Z4GA== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id D0A55380CEF9; Fri, 7 Aug 2026 22:50:17 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH bpf v6] bpf, cgroup: Fix storage null-ptr-deref after replacing prog From: patchwork-bot+netdevbpf@kernel.org Message-Id: <178614301665.2448714.16771338876998687568.git-patchwork-notify@kernel.org> Date: Fri, 07 Aug 2026 22:50:16 +0000 References: <20260807104403.1013064-1-pulehui@huaweicloud.com> In-Reply-To: <20260807104403.1013064-1-pulehui@huaweicloud.com> To: Pu Lehui Cc: bpf@vger.kernel.org, linux-kernel@vger.kernel.org, andrii@kernel.org, ast@kernel.org, daniel@iogearbox.net, eddyz87@gmail.com, memxor@gmail.com, martin.lau@linux.dev, yonghong.song@linux.dev, song@kernel.org, jolsa@kernel.org, emil@etsalapatis.com, ameryhung@gmail.com, pulehui@huawei.com Hello: This patch was applied to bpf/bpf-next.git (master) by Andrii Nakryiko : On Fri, 7 Aug 2026 10:44:03 +0000 you wrote: > From: Pu Lehui > > Syzkaller reported a storage null-ptr-deref issue after replacing prog. > This occurs in the following scenario: > 1. prog A, an empty prog, is attached to a cgrp. > 2. prog B uses BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE and calls the > bpf_get_local_storage helper. > 3. link_update is called to replace prog A with prog B. > > [...] Here is the summary with links: - [bpf,v6] bpf, cgroup: Fix storage null-ptr-deref after replacing prog https://git.kernel.org/bpf/bpf-next/c/3f562c537e9e You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html