From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 A8B1E331A4C; Mon, 29 Dec 2025 16:31:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767025902; cv=none; b=qQkt23WxZNtlBd1/Anp8qCwkawWC6MIbQtPOEojsSDXcSzqT4a3BDqI1/jPrAPZCDXY7Y6jeFuQHwCAhiItrNB3FX59uVMxWk7DwKXh4eFN7gMevd3aPXMbmrnGy1uEtjonoN65w1UMWos3swbecrBjqr1IGjxG0cPCcQI7WIUE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767025902; c=relaxed/simple; bh=nbYjEBEnm7ETQJX2fao0tmEOAD8mwHIbV/jYAlCkMpg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fdTwr9dJJ1R8CveO5wk+yYpNI/cF0i/6YV09rxLy8FOFY+OL0mbp0tGpK0SjIQE6YCwgGCRfsenJVk5ERscKTQX1wYsO9vZarnHrGhGmFjGagE571AwT66y44OFUaV6Mn0tgQ7fvba9RNTAGjSsvzqIstcUdEIZKrxWBj5ytLcU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=gKM3sE+Z; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="gKM3sE+Z" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D4428C4CEF7; Mon, 29 Dec 2025 16:31:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1767025902; bh=nbYjEBEnm7ETQJX2fao0tmEOAD8mwHIbV/jYAlCkMpg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gKM3sE+ZgqrbRJavj8367i9indh/jwdxk7JXsgbEoC0TgS2Iowzyypx+tr98bFigq 3kg5goq6iLja6EVKNfnaxhUsxf4NuuZxjwxA0QtKzce39N2XcL4jemyHofpNGSbvXm ysjY1guG9jswSdljG2FIjcZYVWs7AXI7Gb5B2P7A= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Joshua Rogers , Chuck Lever Subject: [PATCH 6.18 376/430] svcrdma: use rc_pageoff for memcpy byte offset Date: Mon, 29 Dec 2025 17:12:58 +0100 Message-ID: <20251229160738.158189766@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251229160724.139406961@linuxfoundation.org> References: <20251229160724.139406961@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 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Joshua Rogers commit a8ee9099f30654917aa68f55d707b5627e1dbf77 upstream. svc_rdma_copy_inline_range added rc_curpage (page index) to the page base instead of the byte offset rc_pageoff. Use rc_pageoff so copies land within the current page. Found by ZeroPath (https://zeropath.com) Fixes: 8e122582680c ("svcrdma: Move svc_rdma_read_info::ri_pageno to struct svc_rdma_recv_ctxt") Cc: stable@vger.kernel.org Signed-off-by: Joshua Rogers Signed-off-by: Chuck Lever Signed-off-by: Greg Kroah-Hartman --- net/sunrpc/xprtrdma/svc_rdma_rw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/net/sunrpc/xprtrdma/svc_rdma_rw.c +++ b/net/sunrpc/xprtrdma/svc_rdma_rw.c @@ -851,7 +851,7 @@ static int svc_rdma_copy_inline_range(st head->rc_page_count++; dst = page_address(rqstp->rq_pages[head->rc_curpage]); - memcpy(dst + head->rc_curpage, src + offset, page_len); + memcpy((unsigned char *)dst + head->rc_pageoff, src + offset, page_len); head->rc_readbytes += page_len; head->rc_pageoff += page_len;