From nobody Wed Apr 29 21:13:18 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 4g5VQR0x3nz6bxmf for ; Wed, 29 Apr 2026 21:13:19 +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 4g5VQQ700Kz3cZZ for ; Wed, 29 Apr 2026 21:13:18 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1777497199; 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=H0NtDi53ttmEC5lNIF+XT/cehI53e1dpW2xMTXTi2LknaGFCv8UbqAoog2rh85jP2yLraI CFImjyYRe9n79G77xPFA2obQL8F4Rb0slXhA2o1aneKOBeNH4YN0EBDC+VSSumz09LeAE1 +uYtRLpOfT21Op7FQC6QFUqk8djFK78E0B+LUEc7OFb3ce0oTkaXpFlxg9QmNrnQzA+N5H jvZg9S1Nb0w6B2j1X1KxyGSReTPPih2fobZE5DNU2rTgxt+4MM6aY99ZLqS487V4zfCSj3 45scKjOgU5nRiZmD/NduIpyQQvIsAQlZGtstoOCfn1enseLmy6YqqEUPU4FjCQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1777497199; a=rsa-sha256; cv=none; b=yEnT9DXlbbEkjxPrOYPZW1SeH5L9iQVJudH5LiNjPw7PP3bmtyCmzlT3xc4FtHdc+I88zP FHzTZQc4qCMM5Poci/JhxnXgt81+cQBKWaM2gitLHZb74uxz6bKm1jM9TwsmTGBkBB1z/p eaw7jNk8Ourvuc3ExInJW28sseMdpkFQZGaUJMkK5XxBe+Kg57fs9W4X8wcRlRvujMh1Qf 76MPHIDYwMYTqXXtASwSjX4wgfZ+ORgbD8/8FrWquIab4CqZc6QoHVjH8M/U+8HvfyLup/ ZEAtCXbdqUgzEaW7ueE64pKWUvfzisw/azkyqbZuDwuaQQx7KtAttPq3alin2Q== 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=1777497199; 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=I7C1LE4NCIYWtYb9REyWi0k4KDP+cWX5uvtF6MtWpeyknN5WeUjoA/XF8FRVyhn8c9yNOE X29IY8PQFMy6wfowBO9Edxx6E+hzs+dlnvBSyvB+eG4vZYqh5Nbbq4HZTPZfmhPO18Wo74 DDxhdmPTPZ1hKa+elcggkUzX2CEUbs5yKiBrqC4pm/K95fmaFBf2zXbgoTiSWPgJoTKMr1 pY88NCgJOOIkCv0NDBfcgMQsjmYxAHZtlbJ1t+CbvHXxu1JOYFIUU3Cg/WSJEffh53WVWz PCp18O8KVo7Ax5cYBTBZMues0okjZSHf36bG513WV1rTxZcwN0quFb5sDsKJtw== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4g5VQQ6bszzxVd for ; Wed, 29 Apr 2026 21:13:18 +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 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 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;