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 B966F2F533B for ; Tue, 11 Nov 2025 22:50:47 +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=1762901447; cv=none; b=GNrC9rmTCYVWCSnYRAtHWRgOcAXdoB4P4rJRS9k/cjsDHpR809N4m6hbEVECJE2BVK4JEW0rMQHCJC1pgwQbdLOIGuzbK9JzN7BI6eQkp7rUtTAR/ejyOzEPNhhq3mrFNMH/plVF70Mrcz1IsU259T4fd8560hRUdvVuDNB1mHs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762901447; c=relaxed/simple; bh=ZqIUy/sw0TbrZF9bJ6CjXw5oR8zyi6SYNa7WHXDShao=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=JQS/WhFd2N2gX39s19ysi3xMVrqfZUhgrpCWV0J46lCLNPgBrSA6cNJvr/NR+gwS81CMqJCLqkhvtncRJxJEa/4yamDB1SWBqI62U9PAJA+kBOHHXSeNwAif0Ehp4OqcNLaOQtzR8taogPPl1oqnbLfhhaa0ZgmT5J5cxE5Z5Dw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DYWlyczZ; 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="DYWlyczZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5A2AEC4CEFB; Tue, 11 Nov 2025 22:50:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762901447; bh=ZqIUy/sw0TbrZF9bJ6CjXw5oR8zyi6SYNa7WHXDShao=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=DYWlyczZzCXFpt6htUoHmRxJN4xkciT69dZNrKYb2FMJd+VsJ3SNvjsDrHwNeS00U pnrJNnKBQNeukBSFjhOs3WUbn00Bg+moiv4ZEMUkaEswyHk3hyJr7+Rh+LfploilXk 3fBQZmUYEILCzRQndlZaUyBwrNVLZ/zhSrBMx+b+VUzzZOt0K2f2GjzxbFKGibHo8I knmmqPmYg/wLJgKYtKFERkg1hSKdeeys6CbjvSbfLQ2iqX/D7/maSSppT6hHr62tGA xmk9ymvFWQC9wBAkgQjciF+JIn9g24kEv/pgyJRFQ1uFBj557DSZzjcBJyUBGyKKIO RIyVWCHQQjG3g== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id ADCE1380DBCD; Tue, 11 Nov 2025 22:50:18 +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 v2] f2fs: fix to avoid updating zero-sized extent in extent cache From: patchwork-bot+f2fs@kernel.org Message-Id: <176290141749.3596344.15754105220634232444.git-patchwork-notify@kernel.org> Date: Tue, 11 Nov 2025 22:50:17 +0000 References: <20251020024213.332873-1-chao@kernel.org> In-Reply-To: <20251020024213.332873-1-chao@kernel.org> To: Chao Yu Cc: jaegeuk@kernel.org, stable@kernel.org, linux-kernel@vger.kernel.org, syzbot+24124df3170c3638b35f@syzkaller.appspotmail.com, linux-f2fs-devel@lists.sourceforge.net Hello: This patch was applied to jaegeuk/f2fs.git (dev) by Jaegeuk Kim : On Mon, 20 Oct 2025 10:42:12 +0800 you wrote: > As syzbot reported: > > F2FS-fs (loop0): __update_extent_tree_range: extent len is zero, type: 0, extent [0, 0, 0], age [0, 0] > ------------[ cut here ]------------ > kernel BUG at fs/f2fs/extent_cache.c:678! > Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI > CPU: 0 UID: 0 PID: 5336 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) > Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 > RIP: 0010:__update_extent_tree_range+0x13bc/0x1500 fs/f2fs/extent_cache.c:678 > Call Trace: > > f2fs_update_read_extent_cache_range+0x192/0x3e0 fs/f2fs/extent_cache.c:1085 > f2fs_do_zero_range fs/f2fs/file.c:1657 [inline] > f2fs_zero_range+0x10c1/0x1580 fs/f2fs/file.c:1737 > f2fs_fallocate+0x583/0x990 fs/f2fs/file.c:2030 > vfs_fallocate+0x669/0x7e0 fs/open.c:342 > ioctl_preallocate fs/ioctl.c:289 [inline] > file_ioctl+0x611/0x780 fs/ioctl.c:-1 > do_vfs_ioctl+0xb33/0x1430 fs/ioctl.c:576 > __do_sys_ioctl fs/ioctl.c:595 [inline] > __se_sys_ioctl+0x82/0x170 fs/ioctl.c:583 > do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] > do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 > entry_SYSCALL_64_after_hwframe+0x77/0x7f > RIP: 0033:0x7f07bc58eec9 > > [...] Here is the summary with links: - [f2fs-dev,v2] f2fs: fix to avoid updating zero-sized extent in extent cache https://git.kernel.org/jaegeuk/f2fs/c/cbd96c6e304f You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html