From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793214638; b=Nwc1yaZsosmkn4YNorXlvindj6wkSf7JPdv76zMAugEHRSDaTquRxs6CPB84vVBD5a7V fVvOXQAO1KfwrE/E6fa1Rqhm7kPtwrDlD8+PKQFdGLfpbvGYImUGGyOahynaV1IgiqrS5 06acWFER4b2bcNNjn7+Ais7z5YQueY4J33QmupXGAWwCm4qZQMQSZ3oOQMKo0XAJImPsL dNC2M0fzLQFsYe19Zy+E8ZRfFW2xo0yFglfNPqlDpO5cusYoS00a8tnPTSugNWCMWeyO/ HpPx+zy805LwIRv5tZ5fNzFi+s4DrtN8CczO4A1MWCD/v4EV9sqSt7iLNtJ0bfs517g== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793214638; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=sOxufywgApVPGrFaFIoj8uGrZHV3OdFmbaP6/3BZV4M=; b=qjtC2GGjs49NQqWBZC8Y4qayw4y3OXfd2eef1aZAtFhxLDSf1s5ZO086+pR/RzI/ZGI6 S6W5Jpa9gCB97KJNx6uCgOKEZtG9vk8VexwrIWSC6FDxsFFE2n0UZFuk9JAVTq9hW/OYD 03Vncg2eEtSs5/yIACQb7Afi//BP4qT3wVkCl/+35c3o0dIrtMwnsmVDEcltmy2UbGPqo oZqadBGS/JbVMJP5k+ijZfULo/JLQfW6G8MBsKz3Fku4nRj7HXBGpQH1vBZ9qYTyQ1Exm MkYwYpihcXEEq7FwozeCA4LHrUmywdNxGfl+AH0ZahbIQE5+8vkyziqlvi05ELLPCTg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=qFmyAYQA; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1F042606AB1D; Wed, 28 Oct 2026 19:10:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=qFmyAYQA Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7123E1F01825; Wed, 28 Oct 2026 19:10:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1793214638; bh=sOxufywgApVPGrFaFIoj8uGrZHV3OdFmbaP6/3BZV4M=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=qFmyAYQAyKfJAtf4ohQv1v+Dz15196+Q3CIv+2BAqJigpQvpS8IyBujSfjUHbF57R y1zv76idnIdpeZONTd8r5nCAvrwwTQ/vIhlUi/Ekm/5PBYviSBe01kqS6oH+1L0XkH uQjpMBFQSMwk6BzJg6RWAgUjgS+opp4aarW1PK2w= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Joshua Rogers , Chuck Lever , Sasha Levin Subject: [PATCH 6.1 0902/1887] svcrdma: bound check rq_pages index in inline path Date: Wed, 28 Oct 2026 17:49:58 +0100 Message-ID: <20261028170519.943637676@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261028170459.200466217@linuxfoundation.org> References: <20261028170459.200466217@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: patches@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Joshua Rogers [ Upstream commit d1bea0ce35b6095544ee82bb54156fc62c067e58 ] svc_rdma_copy_inline_range indexed rqstp->rq_pages[rc_curpage] without verifying rc_curpage stays within the allocated page array. Add guards before the first use and after advancing to a new page. Fixes: d7cc73972661 ("svcrdma: support multiple Read chunks per RPC") Cc: stable@vger.kernel.org Signed-off-by: Joshua Rogers Signed-off-by: Chuck Lever Signed-off-by: Sasha Levin --- net/sunrpc/xprtrdma/svc_rdma_rw.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/sunrpc/xprtrdma/svc_rdma_rw.c b/net/sunrpc/xprtrdma/svc_rdma_rw.c index 1bc9dfa1e5bbc..e455f16440334 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_rw.c +++ b/net/sunrpc/xprtrdma/svc_rdma_rw.c @@ -811,6 +811,9 @@ static int svc_rdma_copy_inline_range(struct svc_rdma_read_info *info, for (page_no = 0; page_no < numpages; page_no++) { unsigned int page_len; + if (&rqstp->rq_pages[info->ri_pageno] >= rqstp->rq_page_end) + return -EINVAL; + page_len = min_t(unsigned int, remaining, PAGE_SIZE - info->ri_pageoff); -- 2.53.0