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GET /api/patches/1839976/?format=api
{ "id": 1839976, "url": "http://patchwork.ozlabs.org/api/patches/1839976/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/20230927004025.119111-4-cascardo@canonical.com/", "project": { "id": 15, "url": "http://patchwork.ozlabs.org/api/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, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20230927004025.119111-4-cascardo@canonical.com>", "list_archive_url": null, "date": "2023-09-27T00:40:23", "name": "[SRU,OEM-6.1,Lunar,3/5] net: remove osize variable in __alloc_skb()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "c1b8366a6aea61965269147eca916838f321b97d", "submitter": { "id": 70574, "url": "http://patchwork.ozlabs.org/api/people/70574/?format=api", "name": "Thadeu Lima de Souza Cascardo", "email": "cascardo@canonical.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/ubuntu-kernel/patch/20230927004025.119111-4-cascardo@canonical.com/mbox/", "series": [ { "id": 375017, "url": "http://patchwork.ozlabs.org/api/series/375017/?format=api", "web_url": "http://patchwork.ozlabs.org/project/ubuntu-kernel/list/?series=375017", "date": "2023-09-27T00:40:20", "name": "CVE-2023-42752", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/375017/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1839976/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1839976/checks/", "tags": {}, "related": [], "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 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 4RwHpf3cJsz1yp8\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 27 Sep 2023 10:40:58 +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 1qlIbg-0004gb-8E; Wed, 27 Sep 2023 00:40:48 +0000", "from smtp-relay-canonical-0.internal ([10.131.114.83]\n helo=smtp-relay-canonical-0.canonical.com)\n by lists.ubuntu.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)\n (Exim 4.86_2) (envelope-from <cascardo@canonical.com>)\n id 1qlIbZ-0004cl-UG\n for kernel-team@lists.ubuntu.com; Wed, 27 Sep 2023 00:40:42 +0000", "from quatroqueijos.lan (1.general.cascardo.us.vpn [10.172.70.58])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest\n SHA256)\n (No client certificate requested)\n by smtp-relay-canonical-0.canonical.com (Postfix) with ESMTPSA id 903FC42A12\n for <kernel-team@lists.ubuntu.com>; Wed, 27 Sep 2023 00:40:38 +0000 (UTC)" ], "From": "Thadeu Lima de Souza Cascardo <cascardo@canonical.com>", "To": "kernel-team@lists.ubuntu.com", "Subject": "[SRU OEM-6.1,Lunar 3/5] net: remove osize variable in __alloc_skb()", "Date": "Tue, 26 Sep 2023 21:40:23 -0300", "Message-Id": "<20230927004025.119111-4-cascardo@canonical.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20230927004025.119111-1-cascardo@canonical.com>", "References": "<20230927004025.119111-1-cascardo@canonical.com>", "MIME-Version": "1.0", "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: Eric Dumazet <edumazet@google.com>\n\nThis is a cleanup patch, to prepare following change.\n\nSigned-off-by: Eric Dumazet <edumazet@google.com>\nAcked-by: Soheil Hassas Yeganeh <soheil@google.com>\nAcked-by: Paolo Abeni <pabeni@redhat.com>\nReviewed-by: Alexander Duyck <alexanderduyck@fb.com>\nSigned-off-by: Jakub Kicinski <kuba@kernel.org>\n(cherry picked from commit 65998d2bf857b9ae5acc1f3b70892bd1b429ccab)\nCVE-2023-42752\nSigned-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>\n---\n net/core/skbuff.c | 10 ++++------\n 1 file changed, 4 insertions(+), 6 deletions(-)", "diff": "diff --git a/net/core/skbuff.c b/net/core/skbuff.c\nindex beb53b103728..94444244dc16 100644\n--- a/net/core/skbuff.c\n+++ b/net/core/skbuff.c\n@@ -534,7 +534,6 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,\n {\n \tstruct kmem_cache *cache;\n \tstruct sk_buff *skb;\n-\tunsigned int osize;\n \tbool pfmemalloc;\n \tu8 *data;\n \n@@ -560,16 +559,15 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,\n \t * Both skb->head and skb_shared_info are cache line aligned.\n \t */\n \tsize = SKB_HEAD_ALIGN(size);\n-\tosize = kmalloc_size_roundup(size);\n-\tdata = kmalloc_reserve(osize, gfp_mask, node, &pfmemalloc);\n+\tsize = kmalloc_size_roundup(size);\n+\tdata = kmalloc_reserve(size, gfp_mask, node, &pfmemalloc);\n \tif (unlikely(!data))\n \t\tgoto nodata;\n \t/* kmalloc_size_roundup() might give us more room than requested.\n \t * Put skb_shared_info exactly at the end of allocated zone,\n \t * to allow max possible filling before reallocation.\n \t */\n-\tsize = SKB_WITH_OVERHEAD(osize);\n-\tprefetchw(data + size);\n+\tprefetchw(data + SKB_WITH_OVERHEAD(size));\n \n \t/*\n \t * Only clear those fields we need to clear, not those that we will\n@@ -577,7 +575,7 @@ struct sk_buff *__alloc_skb(unsigned int size, gfp_t gfp_mask,\n \t * the tail pointer in struct sk_buff!\n \t */\n \tmemset(skb, 0, offsetof(struct sk_buff, tail));\n-\t__build_skb_around(skb, data, osize);\n+\t__build_skb_around(skb, data, size);\n \tskb->pfmemalloc = pfmemalloc;\n \n \tif (flags & SKB_ALLOC_FCLONE) {\n", "prefixes": [ "SRU", "OEM-6.1", "Lunar", "3/5" ] }