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 57F0EBA34 for ; Sat, 5 Sep 2026 15:02:44 +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=1788620566; cv=none; b=ip+MOQl3PpeXnVqqM129ClQ2DSi2t75E3qvSDbxiMkjuwJ/jg3Zsq3Fg6Etanb8JYSA1gBXbV4o0+dreUusnOZIEw5ErMCUEHe7pDsLkSs9JTUEunlKvhttIXNDfOUcQTVhE+z+2YTMValABvpwUGVTGIaYtqzL7F3+HLHt+vNo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788620566; c=relaxed/simple; bh=A3TJrtgd7oybgHgivklokLfPybtXlCDzOteEvkEab1U=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fKA7ENyT2HsLUE1sSsIGedJ7tJEqnrfoc8wBf5MDgeGGCSlWsQ50G7qrRarR9/zsbc4c3hTXsUna9YgJ/PoDXK023tFEzmcB6Y40F6HLJf3eu0kzS4giAfDATtVYvQ5QVCSBDCB4ukocwapxah6UVNyFf3qrzW64REtuDMZJH4M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DdDtn2Nj; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="DdDtn2Nj" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 51A9F1F00A3A; Sat, 5 Sep 2026 15:02:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788620564; bh=iwF5vpFlUhTnNRLBhqLXb8q+tBnAJgEF7tmOsqDfqBA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=DdDtn2Nj1et2/jUPOY6IE9m453BYBZgOG89X/HbHFYCgLScqBM3TUVAhckZCnQR0d Kzk9TjUCsKt6fvwsk0QDT3aIHJcyeyJkrekPyd7NVEkuCtnvyjHmdvbEAkzuvCk46B AArI3S8rqGGjMqFQ2IhNB5lINuh1roha+QIJy3sIbavLE9MhXST7PauhLm4Xc5U/kB WbzEu8GBIAOLcXquq+9y1ZkGwKpZiCouwngSj9SdPdygi1ycZUi/z/XIyraEKIhSEG 59BtlGS/2mME5xL/vKqccYWicgdPhJDgtY+Qoou7COqGrDPWxheM2wXIqkfdfm4ZlI WOme7Wew9WrRg== From: Sasha Levin To: stable@vger.kernel.org Cc: Jeff Layton , Chuck Lever , Sasha Levin Subject: [PATCH 6.6.y] nfsd: fix nfsd_file leak on inter-server COPY setup failure Date: Sat, 5 Sep 2026 11:02:42 -0400 Message-ID: <20260905150242.303418-1-sashal@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <2026090341-pasty-taste-d5c3@gregkh> References: <2026090341-pasty-taste-d5c3@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Jeff Layton [ Upstream commit 88a76145451d703eedd867b5989bf73d17340399 ] When nfsd4_setup_inter_ssc() fails, nfsd4_copy() returns nfserr_offload_denied directly, bypassing the out: label where release_copy_files() would drop the nf_dst reference taken by nfs4_preprocess_stateid_op(). Each failed inter-server COPY leaks one nfsd_file, pinning file/inode/dentry/vfsmount. Fix by setting status and jumping to out: instead of returning directly. Fixes: ce0887ac96d3 ("NFSD add nfs4 inter ssc to nfsd4_copy") Cc: stable@vger.kernel.org Assisted-by: kres:claude-opus-4-7 Signed-off-by: Jeff Layton Link: https://patch.msgid.link/20260531-nfsd-testing-v1-3-7bfa481b0540@kernel.org Signed-off-by: Chuck Lever [ adjusted cleanup paths to omit unavailable trace_nfsd_copy_*() calls ] Signed-off-by: Sasha Levin --- fs/nfsd/nfs4proc.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 5767080362e85..cac8586429317 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -1808,12 +1808,14 @@ nfsd4_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, goto out; } status = nfsd4_setup_inter_ssc(rqstp, cstate, copy); - if (status) - return nfserr_offload_denied; + if (status) { + status = nfserr_offload_denied; + goto out; + } } else { status = nfsd4_setup_intra_ssc(rqstp, cstate, copy); if (status) - return status; + goto out; } memcpy(©->fh, &cstate->current_fh.fh_handle, -- 2.53.0