From nobody Tue Sep 15 18:04:00 2026 X-Original-To: dev-commits-src-main@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4hkqdr5XnSz6sZCq for ; Tue, 15 Sep 2026 18:04:00 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "YR2" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4hkqdr552gz50yk for ; Tue, 15 Sep 2026 18:04:00 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1789495440; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=7lH0aqu3nwJbhzb1kmC6PwhZ1/VX7JtXMjsna7NRdFE=; b=rVJ65fn+Z7Af74E6KJbCd0DZ/bUPTbPQ4vqFL6T2w+sjCgfIpsS0gaKDtN0ddPLhPDF0Ho 0KgfNKw0Jb4Lv6/HQ8qyYZaOWsi5gtIb8bCljCgJcin68VFLm28ic1Ulxsi4pqGxrBcVlH fqIc9VKI2TChz8XRoeNcAf+2vwYLGk/mS99Zs2zrXdJOSdVZaSWbvthvWVDA/Ykw5/u+d7 ft/pPj1UOl7z8fv9RuhH4dq+BgstvQlPQ0H3y5maOS6/Z4E4RDhNuLiK/Y8i/FBB41ZUN7 dMoNmEBkhCSNlFkv78wrGWXyMcJ8h3koyzmS3+W4wxbs8MfUY9t+6/MHXTzAAg== ARC-Seal: i=1; a=rsa-sha256; d=freebsd.org; s=dkim; cv=none; t=1789495440; b=YgBSrW3vgLHi6nsWMfy2+2bm332nqktaEtd9BtVyM33OQWOBNbLIt6jFNNKE2e9y2zvMCr ZG7yeikD86yqc94dtABDHRwocE+Lo9WA9eHHZLx6U0t9iHtUCDTVoKRjGpn5B190ZMNAXB cOv6eprRQazQq1QMhhXyjmyFCt2HQQ0OSIIDNnTX602Xbu/pbUFgr0CfhaVTOfobPYESiY EiQNmnTI4+Ee2EXv6jkXt6W7YdDDVhv8euWHZefdMDkAc1wQlKHoNlIxH2BfWIyB1ciYug VeaN/Ox5xaK8RczL10CthtMzOAE2I3J3b9EaXU9Npeq0cIH9RepKwK358ocRJw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1789495440; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=7lH0aqu3nwJbhzb1kmC6PwhZ1/VX7JtXMjsna7NRdFE=; b=IYhVSvmqrNqyMTUtkGiHmUQskmB4UcarVhEveEo2UvIqYxIHC/+hrVi6OHnKCAWQaoPCUK 9vw98Fv+nI3axn9HIu5j/WOCwSIertZzERt5kHTPUOj2cAOG2sAQXgM2cIsjh4YAvGjsMC TEDdZgb/YZUM7syt+TMKMVN0ziL+ETao+lXnvQ8C+bn9d3jM9fuj2Tz82WoGsOckMxZnzV FPypwxgowbXHLNRIToSmNQMaEywj0GO+B/dTD6IpvcEhX0RsgZXHmZxu0qNJ3SpOw2KnqG O4GlgtpyPngbKgVLdEEj4HAX5objXeItR9W4HiGyr8AYzOQmPOWxaE09746DSQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4hkqdr486Vz191l for ; Tue, 15 Sep 2026 18:04:00 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 1dd2f by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Tue, 15 Sep 2026 18:04:00 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Maxim Konovalov Subject: git: 47b02ace19c5 - main - ipfw: guard against NULL deref with clat/plat prefixes without length List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-main@freebsd.org Sender: owner-dev-commits-src-main@FreeBSD.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: maxim X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 47b02ace19c53e72ad2290d974025292ff97464a Auto-Submitted: auto-generated Date: Tue, 15 Sep 2026 18:04:00 +0000 Message-Id: <6aa98890.1dd2f.15039b2@gitrepo.freebsd.org> The branch main has been updated by maxim: URL: https://cgit.FreeBSD.org/src/commit/?id=47b02ace19c53e72ad2290d974025292ff97464a commit 47b02ace19c53e72ad2290d974025292ff97464a Author: Maxim Konovalov AuthorDate: 2026-09-15 17:55:40 +0000 Commit: Maxim Konovalov CommitDate: 2026-09-15 18:03:32 +0000 ipfw: guard against NULL deref with clat/plat prefixes without length Found with: Claude Code Sonnet 5 MFC after: 2 weeks --- sbin/ipfw/nat64clat.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sbin/ipfw/nat64clat.c b/sbin/ipfw/nat64clat.c index 63fa7dae14e2..3fc7032683a6 100644 --- a/sbin/ipfw/nat64clat.c +++ b/sbin/ipfw/nat64clat.c @@ -208,6 +208,9 @@ nat64clat_create(const char *name, uint8_t set, int ac, char *av[]) if ((p = strchr(*av, '/')) != NULL) *p++ = '\0'; + else + errx(EX_USAGE, + "Prefix length required: %s", *av); if (inet_pton(AF_INET6, *av, &prefix) != 1) errx(EX_USAGE, "Bad prefix: %s", *av);