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 39E1D34572B; Tue, 12 May 2026 18:00:15 +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=1778608815; cv=none; b=rH3DyhCAslDBg46B/pwYtZYCtb85CzZ0utZ3v2G1MDfnwaZ2JntrhpDAT1P5JckH569YhEI5eUrmjReAupq+mcLa7wqfePYFp9YrYhBuYKfgsu09R8g0ON9yO3Q4I1Me8KbISeUHMCcEc6LgYPyWMwPtvZ7XFoJS1LlBMc+aTsQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778608815; c=relaxed/simple; bh=1uFWT+pRLIYI6sWpanDGU4B6aTrSFZTSfSZhZYicD/A=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=sbNGxf89y4Hyg+LHNXMlz6BJrWqaHtLkDlTvwUBxkMeBI3OrieT0QRSxUIwiIAde69reeANiJ2nD6hXVdctky46ZhhB8KHSh2vUHUZkP6NvMeGJpWNmOxc7X30djzfyscftrfHrABSAxrtB8zYMIIWvSnAEG8UIneDmOjl5dFNs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=bCaE2tP1; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="bCaE2tP1" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 929E6C2BCB0; Tue, 12 May 2026 18:00:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1778608814; bh=1uFWT+pRLIYI6sWpanDGU4B6aTrSFZTSfSZhZYicD/A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bCaE2tP163uFaL+SJJqFRfgOu+X/QbYMHVe6Ggd/ILm9aPcCC7lsMk6SN59V6JdND utlM5HBqoPEZjXmv5cyMyBNVVtfApWB7C5IBAXW0GdkC49TTcz+nmlzredvdTmbYEr LRBlte1/hkVB9wLHn51nzSyjtfROp780GUSMsT+g= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, stable@kernel.org, Yongpeng Yang , Chao Yu , Jaegeuk Kim Subject: [PATCH 6.18 226/270] f2fs: fix incorrect file address mapping when inline inode is unwritten Date: Tue, 12 May 2026 19:40:27 +0200 Message-ID: <20260512173943.204563803@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260512173938.452574370@linuxfoundation.org> References: <20260512173938.452574370@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Yongpeng Yang commit 68a0178981a0f493295afa29f8880246e561494c upstream. When `fileinfo->fi_flags` does not have the `FIEMAP_FLAG_SYNC` bit set and inline data has not been persisted yet, the physical address of the extent is calculated incorrectly for unwritten inline inodes. root@vm:/mnt/f2fs# dd if=/dev/zero of=data.3k bs=3k count=1 root@vm:/mnt/f2fs# f2fs_io fiemap 0 100 data.3k Fiemap: offset = 0 len = 100 logical addr. physical addr. length flags 0 0000000000000000 00000ffffffff16c 0000000000000c00 00000301 This patch fixes the issue by checking if the inode's address is valid. If the inline inode is unwritten, set the physical address to 0 and mark the extent with `FIEMAP_EXTENT_UNKNOWN | FIEMAP_EXTENT_DELALLOC` flags. Cc: stable@kernel.org Fixes: 67f8cf3cee6f ("f2fs: support fiemap for inline_data") Signed-off-by: Yongpeng Yang Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim Signed-off-by: Greg Kroah-Hartman --- fs/f2fs/inline.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) --- a/fs/f2fs/inline.c +++ b/fs/f2fs/inline.c @@ -790,7 +790,7 @@ int f2fs_read_inline_dir(struct file *fi int f2fs_inline_data_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, __u64 start, __u64 len) { - __u64 byteaddr, ilen; + __u64 byteaddr = 0, ilen; __u32 flags = FIEMAP_EXTENT_DATA_INLINE | FIEMAP_EXTENT_NOT_ALIGNED | FIEMAP_EXTENT_LAST; struct node_info ni; @@ -823,9 +823,14 @@ int f2fs_inline_data_fiemap(struct inode if (err) goto out; - byteaddr = (__u64)ni.blk_addr << inode->i_sb->s_blocksize_bits; - byteaddr += (char *)inline_data_addr(inode, ifolio) - - (char *)F2FS_INODE(ifolio); + if (__is_valid_data_blkaddr(ni.blk_addr)) { + byteaddr = (__u64)ni.blk_addr << inode->i_sb->s_blocksize_bits; + byteaddr += (char *)inline_data_addr(inode, ifolio) - + (char *)F2FS_INODE(ifolio); + } else { + f2fs_bug_on(F2FS_I_SB(inode), ni.blk_addr != NEW_ADDR); + flags |= FIEMAP_EXTENT_DELALLOC | FIEMAP_EXTENT_UNKNOWN; + } err = fiemap_fill_next_extent(fieinfo, start, byteaddr, ilen, flags); trace_f2fs_fiemap(inode, start, byteaddr, ilen, flags, err); out: