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 6933C30568E; Sat, 12 Sep 2026 17:03:24 +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=1789232605; cv=none; b=JcXNTmSZs2aCaBHHHDyid7LLTkuHG4SsyDArbLyLB0MTtntkDilWdFfPSpeS4y3BrhUJC5gEdIhiGoxc7i4YvwEVZT6sLA/CD1hSbNRNrxR3f6NRPHypKV/pwHqKjgrASWVd9OJ0nI/MKVc87HsArlJ5diX+3jeLSV53776+JHM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789232605; c=relaxed/simple; bh=YBOTGFiEODlWuQfSKnuuISKaj4BDAQg7vxARHJImjr8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=tBjrpkk1OHkfywu60thXk0C++fku6r3QRoRrb9ywQex5TtnrB4VCn4cgQ/ojW7ZZJOx8oRYhDkjE5XyQHBkEL1gu0yX0VHN3FdO/yvREeAMJVxBVlpBVsXhxTG0bitvkjfu8IOXC0X8R/yT0zqxr50b9SuiqQLB4WCsw4T81DO0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=cQJOMM+0; 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="cQJOMM+0" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 31F9B1F000FF; Sat, 12 Sep 2026 17:03:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789232604; bh=jiiINklKe2ZRx0KcGcGRXdpcm+UG83KDily7JXyKUCQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=cQJOMM+0LujJkkzHBoDhXzazP8573F5sze7Oo+XuYW7OGKF2/kvjrgW//Jnz4K8yG Ab1xiwDORKtYArjh3b6Juh4lucFfHf0Vkxkx5dqzF7t1Kdr2ufxKMFU/3enPLXGmp4 FpP+E2eXo5jeKInwMfqbKzISNHPzhFkPVzw+bNf4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jeff Layton , Chuck Lever Subject: [PATCH 5.15 045/935] nfsd: fix version mismatch loops in nfsd_acl_init_request() Date: Sat, 12 Sep 2026 08:51:15 +0200 Message-ID: <20260912065527.872277816@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: Jeff Layton commit 9bc761051dcd9a4a8b59e64b2b185172d13c716d upstream. The loops that compute the supported version range for PROG_MISMATCH test nfsd_support_acl_version(rqstp->rq_vers) instead of nfsd_support_acl_version(i), so every iteration fails and the function returns rpc_prog_unavail instead of rpc_prog_mismatch. Replace rqstp->rq_vers with the loop variable i, matching the pattern used by the sibling nfsd_init_request() function. Fixes: e333f3bbefe3 ("nfsd: Allow containers to set supported nfs versions") Cc: stable@vger.kernel.org Assisted-by: Claude:claude-opus-4-8 Signed-off-by: Jeff Layton Link: https://patch.msgid.link/20260611-nfsd-testing-v2-9-5b90e276f2d9@kernel.org Signed-off-by: Chuck Lever Signed-off-by: Greg Kroah-Hartman --- fs/nfsd/nfssvc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/fs/nfsd/nfssvc.c +++ b/fs/nfsd/nfssvc.c @@ -859,7 +859,7 @@ nfsd_acl_init_request(struct svc_rqst *r ret->mismatch.lovers = NFSD_ACL_NRVERS; for (i = NFSD_ACL_MINVERS; i < NFSD_ACL_NRVERS; i++) { - if (nfsd_support_acl_version(rqstp->rq_vers) && + if (nfsd_support_acl_version(i) && nfsd_vers(nn, i, NFSD_TEST)) { ret->mismatch.lovers = i; break; @@ -869,7 +869,7 @@ nfsd_acl_init_request(struct svc_rqst *r return rpc_prog_unavail; ret->mismatch.hivers = NFSD_ACL_MINVERS; for (i = NFSD_ACL_NRVERS - 1; i >= NFSD_ACL_MINVERS; i--) { - if (nfsd_support_acl_version(rqstp->rq_vers) && + if (nfsd_support_acl_version(i) && nfsd_vers(nn, i, NFSD_TEST)) { ret->mismatch.hivers = i; break;