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 657F2377ABA; Sat, 12 Sep 2026 18:52:19 +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=1789239140; cv=none; b=MTuno4T7TnmSDayf4kF7l/y2ulM8lZ4piEg9/z1R7A9sU9Yk0bL/S5rLF9JEBl5Q+fqBWcq+y4B4cPHPHMmXqcF/K+LSH8Pv0q3HBnZ05wGzJuck8t4YGEYtl7ZcbSinMbRSeZEhV6GGri59MafKMLNdPcB/PViWi2b9nnE0Ge8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789239140; c=relaxed/simple; bh=zNjBBaY+R+hjGc5Nm4OObMmm0Gz8uwm9fOqrHiwNaSU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jTd1BDkIhUs4GvZDU/1Hhzkbf5zDVggNvFemgdpF3+4HWh6e8ttevaCGNCf/mC4U6nRJGQs/zPYnpAE3MDwEmPTtRXsZyQGA4+x9bZ3IPmwXkdJw3q/suQpz3SwgIO+qA9ZHRtKTDL8VrsJF1wBE8UEzCgaNMeS+9fFoyDprqvo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=xBC3vnTJ; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="xBC3vnTJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0053F1F000FF; Sat, 12 Sep 2026 18:52:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789239139; bh=uMaSezxJg83mFs7De6sV9JU99fuOMyj/lGvPk+FayBU=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=xBC3vnTJqlA2vK/DxqMIehSXtXGKnBU4UZ9AsS/FCfs8LN+vaZUb1sViXKFgfO9cs 8r9mPKCdiF9F0d9Nt36J0TUUHyuXAqO2Wdpuu+lRfc2ZXdyndQvJvHJox4DnA1Mkcz 1PNMCaiaa+WKHG8qwaThZF4VZNlQDf0VD0nsXMRw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yichong Chen , Jan Kara , Sasha Levin Subject: [PATCH 5.15 604/935] isofs: release zisofs block pointer buffer head Date: Sat, 12 Sep 2026 09:00:34 +0200 Message-ID: <20260912065540.693600086@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065526.833703348@linuxfoundation.org> References: <20260912065526.833703348@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 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Yichong Chen [ Upstream commit 2f7dd9b86fe4076059e6a4a2a2c5d565afd76b9e ] zisofs_fill_pages() reads the compressed block pointer table. The error paths release the current buffer_head, the loop also releases the old buffer_head when it advances. However, the success path leaves the last buffer_head referenced. Release it before returning success. Fixes: 59bc055211b8 ("zisofs: Implement reading of compressed files when PAGE_CACHE_SIZE > compress block size") Signed-off-by: Yichong Chen Link: https://patch.msgid.link/20260721091152.1450622-1-chenyichong@uniontech.com Signed-off-by: Jan Kara Signed-off-by: Sasha Levin --- fs/isofs/compress.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/isofs/compress.c b/fs/isofs/compress.c index b81415e73aaf4..f81f121283056 100644 --- a/fs/isofs/compress.c +++ b/fs/isofs/compress.c @@ -293,6 +293,7 @@ static int zisofs_fill_pages(struct inode *inode, int full_page, int pcount, memzero_page(*pages, poffset, PAGE_SIZE - poffset); SetPageUptodate(*pages); } + brelse(bh); return 0; } -- 2.53.0