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GET /api/1.1/patches/2224692/?format=api
{ "id": 2224692, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2224692/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netfilter-devel/patch/20260417183433.4739-1-fmancera@suse.de/", "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": "<20260417183433.4739-1-fmancera@suse.de>", "date": "2026-04-17T18:34:30", "name": "[1/4,nf] netfilter: nft_exthdr: skip SCTP chunk evaluation for non-first fragments", "commit_ref": null, "pull_url": null, "state": "changes-requested", "archived": false, "hash": "7cafa877b3cf875b4f647923b2216479ca3ddf1c", "submitter": { "id": 90904, "url": "http://patchwork.ozlabs.org/api/1.1/people/90904/?format=api", "name": "Fernando Fernandez Mancera", "email": "fmancera@suse.de" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/netfilter-devel/patch/20260417183433.4739-1-fmancera@suse.de/mbox/", "series": [ { "id": 500386, "url": "http://patchwork.ozlabs.org/api/1.1/series/500386/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netfilter-devel/list/?series=500386", "date": "2026-04-17T18:34:31", "name": "[1/4,nf] netfilter: nft_exthdr: skip SCTP chunk evaluation for non-first fragments", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/500386/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2224692/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2224692/checks/", "tags": {}, "headers": { "Return-Path": "\n <netfilter-devel+bounces-12004-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 (1024-bit key;\n unprotected) header.d=suse.de header.i=@suse.de header.a=rsa-sha256\n header.s=susede2_rsa header.b=YoG4bUjs;\n\tdkim=pass header.d=suse.de header.i=@suse.de header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=8iQNfNR8;\n\tdkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de\n header.a=rsa-sha256 header.s=susede2_rsa header.b=1mY9xQE1;\n\tdkim=neutral header.d=suse.de header.i=@suse.de header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=ZXnyoCTL;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.234.253.10; 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a=ed25519-sha256; c=relaxed/relaxed; d=suse.de;\n\ts=susede2_ed25519; t=1776450894;\n\th=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc:\n\t mime-version:mime-version:\n content-transfer-encoding:content-transfer-encoding;\n\tbh=UrX/uUMR+k8sq29o+DdfIXyRnJnVrZizQl8wASbQ+6k=;\n\tb=ZXnyoCTLmeBZqkKUuOxZjOwwjIY4gF1I7vSlnEH6ZvyLIXPPyePA+c55b6xbAGsfMIClIl\n\tDSVf2mt9GtlQSPBg==" ], "From": "Fernando Fernandez Mancera <fmancera@suse.de>", "To": "netfilter-devel@vger.kernel.org", "Cc": "netdev@vger.kernel.org,\n\tcoreteam@netfilter.org,\n\tpablo@netfilter.org,\n\tfw@strlen.de,\n\tphil@nwl.cc,\n\tFernando Fernandez Mancera <fmancera@suse.de>", "Subject": "[PATCH 1/4 nf] netfilter: nft_exthdr: skip SCTP chunk evaluation for\n non-first fragments", "Date": "Fri, 17 Apr 2026 20:34:30 +0200", "Message-ID": "<20260417183433.4739-1-fmancera@suse.de>", "X-Mailer": "git-send-email 2.51.0", "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", "X-Spamd-Result": "default: False [-3.01 / 50.00];\n\tBAYES_HAM(-3.00)[99.99%];\n\tMID_CONTAINS_FROM(1.00)[];\n\tNEURAL_HAM_LONG(-1.00)[-1.000];\n\tR_MISSING_CHARSET(0.50)[];\n\tR_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519];\n\tNEURAL_HAM_SHORT(-0.20)[-1.000];\n\tMIME_GOOD(-0.10)[text/plain];\n\tMX_GOOD(-0.01)[];\n\tARC_NA(0.00)[];\n\tDKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519];\n\tTO_DN_SOME(0.00)[];\n\tMIME_TRACE(0.00)[0:+];\n\tFUZZY_RATELIMITED(0.00)[rspamd.com];\n\tURIBL_BLOCKED(0.00)[suse.de:mid,suse.de:dkim,suse.de:email,imap1.dmz-prg2.suse.org:helo,imap1.dmz-prg2.suse.org:rdns];\n\tRBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from];\n\tRCVD_COUNT_TWO(0.00)[2];\n\tTO_MATCH_ENVRCPT_ALL(0.00)[];\n\tFROM_HAS_DN(0.00)[];\n\tRECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received];\n\tRCPT_COUNT_SEVEN(0.00)[7];\n\tFROM_EQ_ENVFROM(0.00)[];\n\tRCVD_VIA_SMTP_AUTH(0.00)[];\n\tRCVD_TLS_ALL(0.00)[];\n\tDKIM_TRACE(0.00)[suse.de:+];\n\tSPAMHAUS_XBL(0.00)[2a07:de40:b281:104:10:150:64:97:from];\n\tDBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:mid,suse.de:dkim,suse.de:email,imap1.dmz-prg2.suse.org:helo,imap1.dmz-prg2.suse.org:rdns]", "X-Rspamd-Action": "no action", "X-Spam-Flag": "NO", "X-Spam-Score": "-3.01", "X-Spam-Level": "", "X-Rspamd-Server": "rspamd1.dmz-prg2.suse.org", "X-Rspamd-Queue-Id": "AC1836A9E8" }, "content": "The SCTP chunk matching logic in nft_exthdr relies on SCTP common header\nbeing present at the transport header offset. For fragmented packets at\nIP level, only the first fragment would match this condition.\n\nThe nft_exthdr could be used in a PREROUTING chain with a priority lower\nthan -400. This would bypass defragmentation. In addition, it can be use\nin stateless environments so it should work on a environment where\ndefragmentation is not being performed at all.\n\nAdd a check for pkt->fragoff to ensure exthdr SCTP only evaluates\nunfragmented packets or the first fragment in the stream.\n\nFixes: 133dc203d77d (\"netfilter: nft_exthdr: Support SCTP chunks\")\nSigned-off-by: Fernando Fernandez Mancera <fmancera@suse.de>\n---\n net/netfilter/nft_exthdr.c | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)", "diff": "diff --git a/net/netfilter/nft_exthdr.c b/net/netfilter/nft_exthdr.c\nindex 7eedf4e3ae9c..8eb708bb8cff 100644\n--- a/net/netfilter/nft_exthdr.c\n+++ b/net/netfilter/nft_exthdr.c\n@@ -376,7 +376,7 @@ static void nft_exthdr_sctp_eval(const struct nft_expr *expr,\n \tconst struct sctp_chunkhdr *sch;\n \tstruct sctp_chunkhdr _sch;\n \n-\tif (pkt->tprot != IPPROTO_SCTP)\n+\tif (pkt->tprot != IPPROTO_SCTP || pkt->fragoff)\n \t\tgoto err;\n \n \tdo {\n", "prefixes": [ "1/4", "nf" ] }