From nobody Wed Apr 1 08:41:16 2026 Received: from cstnet.cn (smtp21.cstnet.cn [159.226.251.21]) (using TLSv1.2 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6258B1DF73C; Wed, 1 Apr 2026 04:02:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.226.251.21 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775016172; cv=none; b=ONkcd15tWKRh+kT8BLJjaq/sCo9LLEGMNpsDbm+Sg05QUXdmrUQa6l/fsu1R84CCdS+I3RsilvpBR2jFuKrzNkJTgNwJEXH3eLb3C0kos2rACbA9yRpTyqe565uyRkaXC90RkYVIoMDcajj7rO/FEnoJEql7EYYsxEwVF5IwEyg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775016172; c=relaxed/simple; bh=hSDjU7KiCtGJ4NlgfMu2d0Kkdyw1D/vERWXKYePWWXI=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=jKQl+4lliCONqj72ZoB9J+f219q48URKrPiR4M/c47kp/QF1GDbA+ZJslA5aF0jTIjtqB2PRLzJdtUBpIciglT7seXwbSo+ptDO5DTD0TIAxGKOtYCVR1rvcTb+BydRf8Y5ll+yN2eBvCOS50Dxzueh2StRmYEaYxyYalx2YCog= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=isrc.iscas.ac.cn; spf=pass smtp.mailfrom=isrc.iscas.ac.cn; arc=none smtp.client-ip=159.226.251.21 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=isrc.iscas.ac.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=isrc.iscas.ac.cn Received: from localhost.localdomain (unknown [36.112.3.223]) by APP-01 (Coremail) with SMTP id qwCowABn027hmMxpLzXSCw--.12173S2; Wed, 01 Apr 2026 12:02:43 +0800 (CST) From: Haoxiang Li To: cem@kernel.org, ruansy.fnst@fujitsu.com, akpm@linux-foundation.org, djwong@kernel.org Cc: linux-xfs@vger.kernel.org, linux-kernel@vger.kernel.org, Haoxiang Li , stable@vger.kernel.org Subject: [PATCH] xfs: fix a resource leak in xfs_alloc_buftarg() Date: Wed, 1 Apr 2026 12:02:41 +0800 Message-Id: <20260401040241.560314-1-lihaoxiang@isrc.iscas.ac.cn> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qwCowABn027hmMxpLzXSCw--.12173S2 X-Coremail-Antispam: 1UD129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7v73 VFW2AGmfu7bjvjm3AaLaJ3UjIYCTnIWjp_UUUYc7AC8VAFwI0_Gr0_Xr1l1xkIjI8I6I8E 6xAIw20EY4v20xvaj40_Wr0E3s1l1IIY67AEw4v_Jr0_Jr4l8cAvFVAK0II2c7xJM28Cjx kF64kEwVA0rcxSw2x7M28EF7xvwVC0I7IYx2IY67AKxVWUJVWUCwA2z4x0Y4vE2Ix0cI8I cVCY1x0267AKxVWUJVW8JwA2z4x0Y4vEx4A2jsIE14v26r1j6r4UM28EF7xvwVC2z280aV CY1x0267AKxVW8JVW8Jr1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE 5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_Jr0_Jr4lYx0Ex4A2jsIE14v26r1j6r4UMcvjeV CFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1l 42xK82IYc2Ij64vIr41l4c8EcI0Ec7CjxVAaw2AFwI0_JF0_Jw1l4I8I3I0E4IkC6x0Yz7 v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF 1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIx AIcVC0I7IYx2IY6xkF7I0E14v26r1j6r4UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI 42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWI evJa73UjIFyTuYvjfUoOJ5UUUUU X-CM-SenderInfo: 5olkt0x0ld0ww6lv2u4olvutnvoduhdfq/1tbiDAcEE2nMOXDyjQABsO Content-Type: text/plain; charset="utf-8" In the error path, call fs_put_dax() to drop the DAX device reference. Fixes: 6f643c57d57c ("xfs: implement ->notify_failure() for XFS") Cc: stable@vger.kernel.org Signed-off-by: Haoxiang Li Reviewed-by: "Darrick J. Wong" --- fs/xfs/xfs_buf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 47edf3041631..1ca95ef46a73 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -1831,6 +1831,7 @@ xfs_alloc_buftarg( return btp; =20 error_free: + fs_put_dax(btp->bt_daxdev, mp); kfree(btp); return ERR_PTR(error); } --=20 2.25.1