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GET /api/1.1/patches/2220763/?format=api
{ "id": 2220763, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2220763/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/20260408003238.233653-2-acelan.kao@canonical.com/", "project": { "id": 15, "url": "http://patchwork.ozlabs.org/api/1.1/projects/15/?format=api", "name": "Ubuntu Kernel", "link_name": "ubuntu-kernel", "list_id": "kernel-team.lists.ubuntu.com", "list_email": "kernel-team@lists.ubuntu.com", "web_url": null, "scm_url": null, "webscm_url": null }, "msgid": "<20260408003238.233653-2-acelan.kao@canonical.com>", "date": "2026-04-08T00:32:38", "name": "[SRU,R,1/1] UBUNTU: SAUCE: dma-buf: set SB_I_NOEXEC and SB_I_NODEV on dmabuf filesystem", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "bf178eb1fbda7787d8ce8336cea63672bd85a19b", "submitter": { "id": 2976, "url": "http://patchwork.ozlabs.org/api/1.1/people/2976/?format=api", "name": "AceLan Kao", "email": "acelan.kao@canonical.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/20260408003238.233653-2-acelan.kao@canonical.com/mbox/", "series": [ { "id": 499053, "url": "http://patchwork.ozlabs.org/api/1.1/series/499053/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ubuntu-kernel/list/?series=499053", "date": "2026-04-08T00:32:37", "name": "dma-buf filesystem flags fix", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/499053/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2220763/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2220763/checks/", "tags": {}, "headers": { "Return-Path": "<kernel-team-bounces@lists.ubuntu.com>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=lYmf2aM4;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ubuntu.com\n (client-ip=185.125.189.65; helo=lists.ubuntu.com;\n envelope-from=kernel-team-bounces@lists.ubuntu.com;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists.ubuntu.com (lists.ubuntu.com [185.125.189.65])\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 4fr3tz1Z2zz1xv0\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 08 Apr 2026 10:32:59 +1000 (AEST)", "from localhost ([127.0.0.1] helo=lists.ubuntu.com)\n\tby lists.ubuntu.com with esmtp (Exim 4.86_2)\n\t(envelope-from <kernel-team-bounces@lists.ubuntu.com>)\n\tid 1wAGqf-0006fv-GU; Wed, 08 Apr 2026 00:32:49 +0000", "from mail-qk1-f169.google.com ([209.85.222.169])\n by lists.ubuntu.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)\n (Exim 4.86_2) (envelope-from <acelan@gmail.com>) id 1wAGqe-0006fE-6o\n for kernel-team@lists.ubuntu.com; Wed, 08 Apr 2026 00:32:48 +0000", "by mail-qk1-f169.google.com with SMTP id\n af79cd13be357-8d4694105e5so310966085a.1\n for <kernel-team@lists.ubuntu.com>; Tue, 07 Apr 2026 17:32:47 -0700 (PDT)", "from localhost (211-75-139-220.hinet-ip.hinet.net. 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envelope-from=acelan@gmail.com;\n helo=mail-qk1-f169.google.com", "X-BeenThere": "kernel-team@lists.ubuntu.com", "X-Mailman-Version": "2.1.20", "Precedence": "list", "List-Id": "Kernel team discussions <kernel-team.lists.ubuntu.com>", "List-Unsubscribe": "<https://lists.ubuntu.com/mailman/options/kernel-team>,\n <mailto:kernel-team-request@lists.ubuntu.com?subject=unsubscribe>", "List-Archive": "<https://lists.ubuntu.com/archives/kernel-team>", "List-Post": "<mailto:kernel-team@lists.ubuntu.com>", "List-Help": "<mailto:kernel-team-request@lists.ubuntu.com?subject=help>", "List-Subscribe": "<https://lists.ubuntu.com/mailman/listinfo/kernel-team>,\n <mailto:kernel-team-request@lists.ubuntu.com?subject=subscribe>", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "base64", "Errors-To": "kernel-team-bounces@lists.ubuntu.com", "Sender": "\"kernel-team\" <kernel-team-bounces@lists.ubuntu.com>" }, "content": "From: \"Chia-Lin Kao (AceLan)\" <acelan.kao@canonical.com>\n\nBugLink: https://bugs.launchpad.net/bugs/2139656\n\nThe VFS now warns if an inode flagged with S_ANON_INODE is located on a\nfilesystem that does not have SB_I_NOEXEC set. dmabuf inodes are\ncreated using alloc_anon_inode(), which sets S_ANON_INODE.\n\nThis triggers a warning in path_noexec() when a dmabuf is mmapped, for\nexample by GStreamer's v4l2src element.\n\n[ 60.061328] WARNING: CPU: 2 PID: 2803 at fs/exec.c:125 path_noexec+0xa0/0xd0\n...\n[ 60.061637] do_mmap+0x2b5/0x680\n\nFix this by setting SB_I_NOEXEC and SB_I_NODEV on the dmabuf filesystem\ncontext, following the same pattern as commit ce7419b6cf23d (\"anon_inode:\nraise SB_I_NODEV and SB_I_NOEXEC\").\n\nSigned-off-by: Chia-Lin Kao (AceLan) <acelan.kao@canonical.com>\n(cherry picked from commit https://lore.kernel.org/lkml/20260114011917.241196-1-acelan.kao@canonical.com/)\nSigned-off-by: Chia-Lin Kao (AceLan) <acelan.kao@canonical.com>\n---\n drivers/dma-buf/dma-buf.c | 2 ++\n 1 file changed, 2 insertions(+)", "diff": "diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c\nindex 11711874a325b..171fc980c80bf 100644\n--- a/drivers/dma-buf/dma-buf.c\n+++ b/drivers/dma-buf/dma-buf.c\n@@ -216,6 +216,8 @@ static int dma_buf_fs_init_context(struct fs_context *fc)\n \tif (!ctx)\n \t\treturn -ENOMEM;\n \tctx->dops = &dma_buf_dentry_ops;\n+\tfc->s_iflags |= SB_I_NOEXEC;\n+\tfc->s_iflags |= SB_I_NODEV;\n \treturn 0;\n }\n \n", "prefixes": [ "SRU", "R", "1/1" ] }