From nobody Wed Apr 29 21:13:18 2026 X-Original-To: dev-commits-src-all@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 4g5VQX0hCPz6bxW2 for ; Wed, 29 Apr 2026 21:13:24 +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 "R13" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4g5VQX07M2z3c9D for ; Wed, 29 Apr 2026 21:13:24 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1777497204; 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=cjuZLlRgKG9m++K4OzuW3UI9UNPnxDb+3rwwTJHYOFo=; b=yGXrPo1urFZqkdV0FEU3xZx4GPUtZDVF6dFW6TOjE93pj3nW+mz3sSYJed9ceHHaSPhTo9 R3choAM7098pPmjTrqUdsTJzm5YtV/DjtQEC8Hwrus+ES3HipHI2CE+oQJozDsDSymmEzg rl4ycAs/2RsfmfBmz8TK/yacQfvpk2Z6DleD5L8aQQezX7L/OvK78m/oJN/WC1YX4NQ1cu GOKafiUQfls/enNetGf55mMRCu1MzxjLgzYD8qPsBRQE9hav4YTOmSyAsthlTQGC/glTJD HNcCC4gLPHQzPjhPB0+oj9JDFhK9/jAfkf/UpUBSIoHN9lT95AawZPG5lyOG8A== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1777497204; a=rsa-sha256; cv=none; b=Zzon0V+w+ZCpoCliuV2U/5ySWQ0Sh0jXTjDFOlS9o+tuxgseujISpVL6l16ybDiTch+DVW dUzvu51gkxQuH814VYS/45kaMdciFQvKY4gA1lbAw5hrUWh6a8ECcMLVEZR9X7H/0ZS1G5 ebuhjGBd6JMuvNqQn444JwBnhiW2NI5BGLzxHVLWCxH9lsWSJXTIJYf1BY04ZbBslxvjdC QC6rddSKacuCfzBDfJLDayYSpkdMdk35jTW/28guq86wHlx/RkUk2zIgMjOaTuJFvBxcbG HL4mCm2XhJLHIXEYJ7vQXH19nKY9xZNoWyAMtELbd+iVUDI3Wa6IGwwOViYPXQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1777497204; 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=cjuZLlRgKG9m++K4OzuW3UI9UNPnxDb+3rwwTJHYOFo=; b=K+YzXioLSxXSS1P2xWhn+0rAUcYyidT1oI5d1HaSJgQr6Wn15xTAXX8ZiJMmHzYeXzvjVW HRlL/D2bXnPztP9Hq/z0CxfCyM5Z0pqdEeC5UTspqGHpuvzaO2MxIb7a21rWmkh9FjCQ1M 9Eb0zP56VkoofpSg7RQaCDDFKkIO4Q7YmCeGAEPgVWiS7td925tY+F8RAiqD68VLU+mqUI acxNv5HuR8n/PQbE87UGWZ2v70EW0YACkl55EJJLulXHwaNCLxQRhDIxwKMNTDfzRbxIvJ NQZAtpo0wDoOpjica/EYxudU7kYLYAoPCqhfSY/N8IGZJT53K9ftoQLz83qCRQ== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4g5VQW6cXdzxxb for ; Wed, 29 Apr 2026 21:13:23 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 461d9 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Wed, 29 Apr 2026 21:13:18 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Vincenzo Maffione Subject: git: 0216ea8598af - main - netmap: check for possible out-of-bound write with options List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: vmaffione X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 0216ea8598af7d4170a8660f48981fb12b7b1d67 Auto-Submitted: auto-generated Date: Wed, 29 Apr 2026 21:13:18 +0000 Message-Id: <69f2746e.461d9.655a42e2@gitrepo.freebsd.org> The branch main has been updated by vmaffione: URL: https://cgit.FreeBSD.org/src/commit/?id=0216ea8598af7d4170a8660f48981fb12b7b1d67 commit 0216ea8598af7d4170a8660f48981fb12b7b1d67 Author: Vincenzo Maffione AuthorDate: 2026-04-29 20:59:17 +0000 Commit: Vincenzo Maffione CommitDate: 2026-04-29 21:13:09 +0000 netmap: check for possible out-of-bound write with options Submitted by: hari.thirusangu@sophos.com MFC after: 2 weeks --- sys/dev/netmap/netmap.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sys/dev/netmap/netmap.c b/sys/dev/netmap/netmap.c index f531151fb656..6f79c2c45b39 100644 --- a/sys/dev/netmap/netmap.c +++ b/sys/dev/netmap/netmap.c @@ -3503,6 +3503,7 @@ nmreq_copyin(struct nmreq_header *hdr, int nr_body_is_user) /* check optsz and nro_size to avoid for possible integer overflows of rqsz */ if ((optsz > NETMAP_REQ_MAXSIZE) || (opt->nro_size > NETMAP_REQ_MAXSIZE) || (rqsz + optsz > NETMAP_REQ_MAXSIZE) + || (p - ker + optsz > bufsz) || (optsz > 0 && rqsz + optsz <= rqsz)) { error = EMSGSIZE; goto out_restore;