Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/1.1/patches/2229267/?format=api
{ "id": 2229267, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2229267/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netfilter-devel/patch/20260427234014.86256-1-ja@ssi.bg/", "project": { "id": 26, "url": "http://patchwork.ozlabs.org/api/1.1/projects/26/?format=api", "name": "Netfilter Development", "link_name": "netfilter-devel", "list_id": "netfilter-devel.vger.kernel.org", "list_email": "netfilter-devel@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null }, "msgid": "<20260427234014.86256-1-ja@ssi.bg>", "date": "2026-04-27T23:40:14", "name": "[net] ipvs: fix shift-out-of-bounds in ip_vs_rht_desired_size", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "4c8889fe6f52fdc0fbe33cac98deb4f9022111ce", "submitter": { "id": 2825, "url": "http://patchwork.ozlabs.org/api/1.1/people/2825/?format=api", "name": "Julian Anastasov", "email": "ja@ssi.bg" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/netfilter-devel/patch/20260427234014.86256-1-ja@ssi.bg/mbox/", "series": [ { "id": 501744, "url": "http://patchwork.ozlabs.org/api/1.1/series/501744/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netfilter-devel/list/?series=501744", "date": "2026-04-27T23:40:14", "name": "[net] ipvs: fix shift-out-of-bounds in ip_vs_rht_desired_size", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/501744/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2229267/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2229267/checks/", "tags": {}, "headers": { "Return-Path": "\n <netfilter-devel+bounces-12234-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "netfilter-devel@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (4096-bit key;\n unprotected) header.d=ssi.bg header.i=@ssi.bg header.a=rsa-sha256\n header.s=ssi header.b=bE+pno7q;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c15:e001:75::12fc:5321; helo=sin.lore.kernel.org;\n envelope-from=netfilter-devel+bounces-12234-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n\tdkim=pass (4096-bit key) header.d=ssi.bg header.i=@ssi.bg header.b=\"bE+pno7q\"", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=193.238.174.39", "smtp.subspace.kernel.org;\n dmarc=pass (p=reject dis=none) header.from=ssi.bg", "smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=ssi.bg" ], "Received": [ "from sin.lore.kernel.org (sin.lore.kernel.org\n [IPv6:2600:3c15:e001:75::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g4Knq2gdLz1yHv\n\tfor <incoming@patchwork.ozlabs.org>; Tue, 28 Apr 2026 09:41:03 +1000 (AEST)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby sin.lore.kernel.org (Postfix) with ESMTP id B46A630091F6\n\tfor <incoming@patchwork.ozlabs.org>; Mon, 27 Apr 2026 23:40:56 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 0221C3B7B99;\n\tMon, 27 Apr 2026 23:40:53 +0000 (UTC)", "from mx.ssi.bg (mx.ssi.bg [193.238.174.39])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id 7F213248166;\n\tMon, 27 Apr 2026 23:40:46 +0000 (UTC)", "from mx.ssi.bg (localhost [127.0.0.1])\n\tby mx.ssi.bg (Potsfix) with ESMTP id CD507210CD;\n\tTue, 28 Apr 2026 02:40:43 +0300 (EEST)", "from box.ssi.bg (box.ssi.bg [193.238.174.46])\n\tby mx.ssi.bg (Potsfix) with ESMTPS;\n\tTue, 28 Apr 2026 02:40:42 +0300 (EEST)", "from ja.ssi.bg (unknown [213.16.62.126])\n\tby box.ssi.bg (Potsfix) with ESMTPSA id 07CAE608B8;\n\tTue, 28 Apr 2026 02:40:42 +0300 (EEST)", "from ja.home.ssi.bg (localhost.localdomain [127.0.0.1])\n\tby ja.ssi.bg (8.18.1/8.18.1) with ESMTP id 63RNeeG0086275;\n\tTue, 28 Apr 2026 02:40:40 +0300", "(from root@localhost)\n\tby ja.home.ssi.bg (8.18.1/8.18.1/Submit) id 63RNeeW0086274;\n\tTue, 28 Apr 2026 02:40:40 +0300" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1777333251; cv=none;\n b=GU/Y0P/q5v08pF6bclC79TCN5iCxnMo/XlLApQx0jYVYPYSRuvhlPZ3R2ES7gUU3WzD9sRtbruhvB1I01ekXiwtdhLD8orO19e02v063iTz3lqjtGcmGCFsAOh1+2GSfzT9Pce2TuH0rShtozQgZM93jFgoDm0+NP6hzegXp4tk=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1777333251; c=relaxed/simple;\n\tbh=oUFlTiGYqw73lHnw86juUKMkGTiWASsaJfIxIyDpvY8=;\n\th=From:To:Cc:Subject:Date:Message-ID:MIME-Version;\n b=W9gmJN2FFfrME48YCCec0V5CM93lu3z6etLkbGPHoiLJ64nfDm9hfo535u0wKU67Jf1Xvi2KQJKxGO/1Jj3AHGgeY/FGLQEHCJ8ARiAjjsZzb5hhXyD5m5cEkOow33V/YkMyXqLAdbj/DFAI3Iat+LhMF5S/FcR9UR3goqYLu+g=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=reject dis=none) header.from=ssi.bg;\n spf=pass smtp.mailfrom=ssi.bg;\n dkim=pass (4096-bit key) header.d=ssi.bg header.i=@ssi.bg header.b=bE+pno7q;\n arc=none smtp.client-ip=193.238.174.39", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=ssi.bg; h=cc:cc\n\t:content-transfer-encoding:date:from:from:message-id\n\t:mime-version:reply-to:subject:subject:to:to; s=ssi; bh=+N8l8xhO\n\t6EweGkIZO6SUeyy8/92nakMTqZK+u/GGXGQ=; b=bE+pno7qsEoY9xS+GdCoyxYr\n\tc44u8l1CTEUqU0wbr1dNuIVphKO2353TJcLlFWmHca4bUEM0XAr0ASeA+63Wb2bz\n\tOF0kZP4u2DUGpj4Cb+O8u41QndsyDv0J/0pOl1gqs0hRcIqyNP2BsMoL2Yn81xI6\n\tQjzWkS0fy+FhRwpQiTe0Bh+O0WDt4IfdAU9x4AMOGpm8bk83Xo3XWlY0ofdYm39/\n\t8q2rPJcSVqGk5qAmy8si3oifw0805ynUov3nFRpgaVaS3qeinuKiM2TIlHmWj3nO\n\t771+r1VrP1L4RizGi0onE5A4305MHBSRO1sUhbo83o47vrlOvxJB8W8MGyrD1Gnv\n\tTiDt8KVKywhVKrWN4wUvNSiyKPSunmw8N8nEuKnHwrqW/MEtBKdsw3ve3+U/CbD2\n\tbfWe6Ub95Ta5biJBVM6S8wnTRFJ7WcA+BCYBQOjOODYj74USIRwcuH7G0aoK7Fnz\n\tNw2HMnSb3ymcOdDITk99Pv8RTQeuZKYSTpcYt8dJP1GyqQCg37Fh7nts/nNGC1S4\n\tH0RfedQcppXrdJXbproe3JYPUTdDe11da60sT6OARDkjT6MQQv/m7HrEPXNj0z+z\n\tgUmnEidXm2noEdjxWIX3NBVJj7zEfsHmv5emZ2hc9xy2aJ042gseH4XKho6Oe2xn\n\tQYFiMfQBk18qXYeI2Zo=", "From": "Julian Anastasov <ja@ssi.bg>", "To": "Simon Horman <horms@verge.net.au>", "Cc": "Pablo Neira Ayuso <pablo@netfilter.org>, Florian Westphal <fw@strlen.de>,\n lvs-devel@vger.kernel.org, netfilter-devel@vger.kernel.org,\n netdev@vger.kernel.org", "Subject": "[PATCH net] ipvs: fix shift-out-of-bounds in ip_vs_rht_desired_size", "Date": "Tue, 28 Apr 2026 02:40:14 +0300", "Message-ID": "<20260427234014.86256-1-ja@ssi.bg>", "X-Mailer": "git-send-email 2.53.0", "Precedence": "bulk", "X-Mailing-List": "netfilter-devel@vger.kernel.org", "List-Id": "<netfilter-devel.vger.kernel.org>", "List-Subscribe": "<mailto:netfilter-devel+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:netfilter-devel+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit" }, "content": "Calling roundup_pow_of_two() with 0 has undefined result:\n\nUBSAN: shift-out-of-bounds in ./include/linux/log2.h:57:13\nshift exponent 64 is too large for 64-bit type 'unsigned long'\nCPU: 1 UID: 0 PID: 77 Comm: kworker/u8:4 Not tainted syzkaller #0 PREEMPT(full)\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026\nWorkqueue: events_unbound conn_resize_work_handler\nCall Trace:\n <TASK>\n dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120\n ubsan_epilogue+0xa/0x30 lib/ubsan.c:233\n __ubsan_handle_shift_out_of_bounds+0x385/0x410 lib/ubsan.c:494\n __roundup_pow_of_two include/linux/log2.h:57 [inline]\n ip_vs_rht_desired_size+0x2cf/0x410 net/netfilter/ipvs/ip_vs_core.c:240\n ip_vs_conn_desired_size net/netfilter/ipvs/ip_vs_conn.c:765 [inline]\n conn_resize_work_handler+0x1b6/0x14c0 net/netfilter/ipvs/ip_vs_conn.c:822\n process_one_work kernel/workqueue.c:3302 [inline]\n process_scheduled_works+0xb5d/0x1860 kernel/workqueue.c:3385\n worker_thread+0xa53/0xfc0 kernel/workqueue.c:3466\n kthread+0x388/0x470 kernel/kthread.c:436\n ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245\n </TASK>\n\nReported-by: syzbot+217f1db9c791e27fe54a@syzkaller.appspotmail.com\nFixes: b655388111cf (\"ipvs: add resizable hash tables\")\nSigned-off-by: Julian Anastasov <ja@ssi.bg>\n---\n net/netfilter/ipvs/ip_vs_core.c | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)", "diff": "diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c\nindex f5b7a2047291..ea450944465f 100644\n--- a/net/netfilter/ipvs/ip_vs_core.c\n+++ b/net/netfilter/ipvs/ip_vs_core.c\n@@ -237,7 +237,7 @@ int ip_vs_rht_desired_size(struct netns_ipvs *ipvs, struct ip_vs_rht *t, int n,\n {\n \tif (!t)\n \t\treturn 1 << min_bits;\n-\tn = roundup_pow_of_two(n);\n+\tn = n ? roundup_pow_of_two(n) : 1;\n \tif (lfactor < 0) {\n \t\tint factor = min(-lfactor, max_bits);\n \n", "prefixes": [ "net" ] }