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 6E8DABA4F for ; Tue, 7 Mar 2023 19:07:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B0479C433EF; Tue, 7 Mar 2023 19:07:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1678216052; bh=HCNHSwPyRvXMZN936VQQk/o3vaIlxlUgKrlIvSOqC3o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aK2vS2RuH3P4SLKPpvSXduhFyPmMZlS+5h6e2Z7O9W6F01KPYuV3FA4ndtmYDaHbB ylcFskns5LyJpGeqFggnBfXZ22wFz3D8OtxycHxERt4EcPM3XK3aKN8YErK2udsBLX wWi4/4jcoDR8VzQtmYMCWMDilgCfF8MZeh+2Jpq8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jan Kara Subject: [PATCH 5.15 459/567] udf: Truncate added extents on failed expansion Date: Tue, 7 Mar 2023 18:03:15 +0100 Message-Id: <20230307165925.777676871@linuxfoundation.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230307165905.838066027@linuxfoundation.org> References: <20230307165905.838066027@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Jan Kara commit 70bfb3a8d661d4fdc742afc061b88a7f3fc9f500 upstream. When a file expansion failed because we didn't have enough space for indirect extents make sure we truncate extents created so far so that we don't leave extents beyond EOF. CC: stable@vger.kernel.org Signed-off-by: Jan Kara Signed-off-by: Greg Kroah-Hartman --- fs/udf/inode.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -525,8 +525,10 @@ static int udf_do_extend_file(struct ino } if (fake) { - udf_add_aext(inode, last_pos, &last_ext->extLocation, - last_ext->extLength, 1); + err = udf_add_aext(inode, last_pos, &last_ext->extLocation, + last_ext->extLength, 1); + if (err < 0) + goto out_err; count++; } else { struct kernel_lb_addr tmploc; @@ -560,7 +562,7 @@ static int udf_do_extend_file(struct ino err = udf_add_aext(inode, last_pos, &last_ext->extLocation, last_ext->extLength, 1); if (err) - return err; + goto out_err; count++; } if (new_block_bytes) { @@ -569,7 +571,7 @@ static int udf_do_extend_file(struct ino err = udf_add_aext(inode, last_pos, &last_ext->extLocation, last_ext->extLength, 1); if (err) - return err; + goto out_err; count++; } @@ -583,6 +585,11 @@ out: return -EIO; return count; +out_err: + /* Remove extents we've created so far */ + udf_clear_extent_cache(inode); + udf_truncate_extents(inode); + return err; } /* Extend the final block of the file to final_block_len bytes */