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 F2B073019C8; Tue, 2 Jun 2026 16:23:27 +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=1780417408; cv=none; b=qlvS6POxJRqcQAee20OfAUZTO+KcuL1v8ON1+u7FO3Vw03//lz7H4GNL8aEov2xDkrAeyeuejweTq00qiKkWNfxg4Mkqzks0hYfJXcygmexwYQ+lx2nYrgBvzWG4K5Bq+lCSyrzEW9hGMEFIcB3PqtqxuNFsNZT3hBUv9Qaid08= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780417408; c=relaxed/simple; bh=vuYEpJJOGtjuvv4cnVwxiWWNBECDLvmCTPU4mt3Kzds=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=g9RAi07yJxVeGQJmrzJY8ZeZAz7Ww7kzww97QSInUNVLfvDrhLAGoUgBm6D1VxfWPUre/qROsfwiuM6vHZrcTgMldX3++HejSVDEiEmAqIFFIKOGzMdv6lbuZl12BcLHpWd3ze+4pFljBlCas4paEnxuO0rib5TXLcqHKu8IoPU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=n/BskQOT; 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="n/BskQOT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 326AF1F00893; Tue, 2 Jun 2026 16:23:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1780417407; bh=WIEV5sVFxSJwTMmvxp3SldQ8HifstGpFzIjIQcXd/+0=; h=From:Subject:Date:To:Cc; b=n/BskQOTSih2SKOiqmA6OZzDO1Bkqi/HmwoEpyQ3IpY1TOTvo87ujdFEDQJqfOisI XSPo12wTC/ePNIHAufvNQ10Y3yBny6VEXYGWeP9CPEGWexPTcNVzQiUC4dsFNyMOjB R5AC118tHjFRcNYdGwIDTjIP3yk3QC4QHIdivAuC3tfZ548x0zkx4z9nQ8If5/2IRF Gn4q4taqlZ+bp+RCA6975SLLPqYcouM6cOWfAvo8Qv2WoAVb3YnMsCI7UKCYUGWCN+ 0Jy33l5DGpDiTkv0kzeVah2K3BiTM2XQ7VSdMixtcreud21PEktnMiwmbpd8q1MCcc i+JWd9bz05fig== From: Jeff Layton Subject: [PATCH v2 0/9] nfsd: fixes for locally-triggerable bugs Date: Tue, 02 Jun 2026 12:23:12 -0400 Message-Id: <20260602-nfsd-testing-v2-0-e4ea62e3cd5c@kernel.org> Precedence: bulk X-Mailing-List: linux-nfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAAAAAAAC/3XMwQoCIRSF4VcZ7jrjqijVqvcYZhF5dS6FhooUg ++ezb7lf+B8GxTKTAUu0waZGhdOcYQ6THBfbzGQYDcaFCqLFqWIvjhRqVSOQZA2eHaGUBuCcXl l8vzeuXkZvXKpKX92vcnf+gdqUqBw6K0ko63zp+uDcqTnMeUAS+/9C004h8KpAAAA X-Change-ID: 20260601-nfsd-testing-e3509d5e035e To: Chuck Lever , NeilBrown , Olga Kornievskaia , Dai Ngo , Tom Talpey , Lorenzo Bianconi , Anna Schumaker , Trond Myklebust , Anna Schumaker , Mike Snitzer Cc: Al Viro , Chris Mason , linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org, Trond Myklebust , Jeff Layton X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=2054; i=jlayton@kernel.org; h=from:subject:message-id; bh=vuYEpJJOGtjuvv4cnVwxiWWNBECDLvmCTPU4mt3Kzds=; b=owEBbQKS/ZANAwAKAQAOaEEZVoIVAcsmYgBqHwN3Tn/fQ0Cq3QfWIvw2kxmYdMs9rEG8kTmPs 9Rr/TAWdRiJAjMEAAEKAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCah8DdwAKCRAADmhBGVaC FRPBEACH8I+aL0Oo5CfqdAcOR99bZPRPgfsJT3ZpeR5MwYrAA9nX48rXg5cdckX0hQi1fX4at9h HkdtMXeAYsUlnU6dv4bIFfLEyNkt3drFENRNarji4rFwTYVkvqW9FVERTKjj/gAZeQ44VsrInDO wtMTtEpUVsokimtNKkdcxOSDuvQgJ9OOPRypEitpY8ELrQNsedmyT09ZoNdu5mVtytLlaVzQMNq GVno0zfcoze+El1V+eV86DG2iQdw6spFJtQj/9E3vTwETPTo2evtf1fV4NFoF1ZGaOBTuCG6Gb7 pzzdVCYv3R8Gen8EmaGRk/hkcd1BAnV037TUns1Xcku5VbJGYMCNBaYfW1/P6mW7+LMT6OVvuy9 Cz8GZY++Pll1ZMoX73Jh5+L87565WOSxUFjKRQc+LYtvlzEKAoktQzvZM0OuqBFlafaFm87uy8w 9IyCsc6EUqBU2aVCq9PxQ3Y33NZy74WAInf/t/Yvl64ZzqBGuYmkBCaUQ87FJShrQ+As3hqJk/f ImrmV3/KTcNi+N5+jB7SXiHGdBLxqcw4J0BnhtfJDXcM1u/8rj6kgxQQIvhXrlaSRxsb97CSsai O6YSSFuEtV1w4mHgqkefORQPIcBQ85cgCp0wG8sASvtQtVVUJ8K127w9QF/YSwB00VER2arxBs4 LtAoNqDFr4MTBwQ== X-Developer-Key: i=jlayton@kernel.org; a=openpgp; fpr=4BC0D7B24471B2A184EAF5D3000E684119568215 Just some minor changes in this version, plus a cleanup patch from Al. These are bugs that Claude classified as locally-triggerable. A couple can be triggered by an unprivileged user, but the rest require admin access. The last 3 patches fix one bug. I originally had a more targeted fix that kres generated, but I think it's better to simplify the filecache disposal mechanism to get rid of the bug rather than add more complexity. Signed-off-by: Jeff Layton --- Changes in v2: - rework filecache patch to only take net ref at disposal time - fix ordering of operations in nfsd4_release_compoundargs() - add Al's patch to simplify nfsd_cross_mnt() cleanup - Link to v1: https://lore.kernel.org/r/20260601-nfsd-testing-v1-0-d0f61e536df8@kernel.org --- Al Viro (1): nfsd: unify cleanups in nfsd_cross_mnt() exits Chris Mason (3): nfsd: hold rcu across localio cmpxchg retry nfs/localio: fix ref leak on nfs_uuid_add_file failure nfsd: guard nfsd_serv deref in nfsd_file_net_dispose Jeff Layton (5): nfsd: defer vfree of compound ops to fix rpc_status UAF nfsd: widen nfsd_genl_rqstp address fields to sockaddr_storage nfsd: fix refcount leak in nfsd_file_lru_add on insertion failure nfsd: fix fcache_disposal UAF by inlining dispose state into nfsd_net nfsd: hold net namespace reference for delayed-dispose nfsd_files fs/nfs_common/nfslocalio.c | 14 ++++- fs/nfsd/filecache.c | 130 ++++++++++++++++++++------------------------- fs/nfsd/filecache.h | 3 +- fs/nfsd/localio.c | 12 +++-- fs/nfsd/netns.h | 3 +- fs/nfsd/nfs4xdr.c | 4 +- fs/nfsd/nfsctl.c | 12 ++--- fs/nfsd/vfs.c | 17 +++--- include/linux/nfslocalio.h | 9 +--- 9 files changed, 101 insertions(+), 103 deletions(-) --- base-commit: e7ca66ba17f1b5e4ecbb29b9c3c4a31aa062bed0 change-id: 20260601-nfsd-testing-e3509d5e035e Best regards, -- Jeff Layton