[{"id":3683731,"web_url":"http://patchwork.ozlabs.org/comment/3683731/","msgid":"","list_archive_url":null,"date":"2026-04-28T22:05:16","subject":"Re: [PATCH] linux-user: Allow getsockopt() with NULL optval address","submitter":{"id":93152,"url":"http://patchwork.ozlabs.org/api/people/93152/","name":"Pierrick Bouvier","email":"pierrick.bouvier@oss.qualcomm.com"},"content":"On 4/28/2026 2:46 PM, Helge Deller wrote:\n> From: Helge Deller \n> \n> Some programs test availability of socket options by asking for the\n> value with an NULL optval address, which currenrly always trigger an\n> EFAULT in qemu. Fix it by allowing a NULL address, in the same manner\n> as the Linux kernel on physical machines.\n> \n> Resolves: https://gitlab.com/qemu-project/qemu/-/work_items/2390\n> Signed-off-by: Helge Deller \n> ---\n> linux-user/syscall.c | 50 +++++++++++++++++++++++++-------------------\n> 1 file changed, 28 insertions(+), 22 deletions(-)\n> \n\nReviewed-by: Pierrick Bouvier ","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=qualcomm.com header.i=@qualcomm.com header.a=rsa-sha256\n header.s=qcppdkim1 header.b=KE+KUnFI;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com\n header.a=rsa-sha256 header.s=google header.b=bcnuPm+Q;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists1p.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)"],"Received":["from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g4vf765Jmz1xvV\n\tfor ; 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