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 0038723C513 for ; Wed, 9 Jul 2025 18:09:55 +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=1752084596; cv=none; b=AitK6Etsqo1CGi9vz035jYyKNggwBAidgZtdHVRjZUHM9PKhTnP1d3wiO1C4y+mRtbKOUgg7KMgLf73dvOA32i8cI/5TdgFktY1bCS04NZ9cBhC0wSqYxxeL7u3q8UkeM0pxIu21c3mmbkQBmSchFtsljvIioUiETAmQjC0xio0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752084596; c=relaxed/simple; bh=SB5eGlc2moEaIco7oamQmt2dqEBMeVD1RaTZ695Ux3c=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=UjqYbLqlHN6tVEjGHLl/Vc/8r7VP95PcbbKpDCxKmNZWi5ptmXoyES9F4nIQ8T9RJNdqGGhdLtCiVOyZ4swBT3Haj0e3yO9zGA4EyvDVypgGKcPCcKP/Gc5Q4YPIuzDnj+abqoHLZccS0vIKYoYo699QytpOAA31heWYxmRxqbo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DYmPdDBo; 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="DYmPdDBo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6C4C1C4CEF6; Wed, 9 Jul 2025 18:09:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752084595; bh=SB5eGlc2moEaIco7oamQmt2dqEBMeVD1RaTZ695Ux3c=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=DYmPdDBoNmwt4l6OVHUtKSm5T1xZIxE4IwuRARnvBD3ePi/8j6tU8YU5Ap7BoA9nI 1W5Ykp0YnIqy+ILppNiwRPQzTurFnpfBE9fblqRrEHw8dzKSx//ZiBW/fTDiVSGRkG CJ3GlphzdOWPSOJAo8px+1SuHUri0qv1qRLK2A0D97hCHUEwerBIYGQsw9OaSQuiJS h7bjK9ImtSqXq1Qf4pBAIGs0RHrCD/grD9DYP7d9Mc6UZBbPaRNE7IsrQsNLbL6vP5 fiHWQqn0CJ2IZqxOdBme/F0TdiZ9Q1vAkkf9R+9Xh52b7+qAYmCGU9tcNtmI2n8Pai rt3PBDoNhef+A== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 33E86380DBEE; Wed, 9 Jul 2025 18:10:19 +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: [f2fs-dev] [PATCH v4] f2fs: fix KMSAN uninit-value in extent_info usage From: patchwork-bot+f2fs@kernel.org Message-Id: <175208461775.806926.5771206803640875026.git-patchwork-notify@kernel.org> Date: Wed, 09 Jul 2025 18:10:17 +0000 References: <20250625110537.22806-1-abinashsinghlalotra@gmail.com> In-Reply-To: <20250625110537.22806-1-abinashsinghlalotra@gmail.com> To: Abinash Singh Cc: chao@kernel.org, syzbot+b8c1d60e95df65e827d4@syzkaller.appspotmail.com, abinashsinghlalotra@gmail.com, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, jaegeuk@kernel.org Hello: This patch was applied to jaegeuk/f2fs.git (dev) by Jaegeuk Kim : On Wed, 25 Jun 2025 16:35:37 +0530 you wrote: > KMSAN reported a use of uninitialized value in `__is_extent_mergeable()` > and `__is_back_mergeable()` via the read extent tree path. > > The root cause is that `get_read_extent_info()` only initializes three > fields (`fofs`, `blk`, `len`) of `struct extent_info`, leaving the > remaining fields uninitialized. This leads to undefined behavior > when those fields are accessed later, especially during > extent merging. > > [...] Here is the summary with links: - [f2fs-dev,v4] f2fs: fix KMSAN uninit-value in extent_info usage https://git.kernel.org/jaegeuk/f2fs/c/154467f4ad03 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html