From nobody Tue Jun 9 19:20:11 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 4gZdyz731nz6gVjC for ; Tue, 09 Jun 2026 19:20:11 +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 4gZdyz4qzwz3QxP for ; Tue, 09 Jun 2026 19:20:11 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1781032811; 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=xMaMPIFG/doTxT3pm07XzmYVtaB83fJMc//s7YX6wF0=; b=bXdf5Xx6qwWLszzWoEQCRjis1J285xr4AAIm9BvT3ZOoj+belgUl/zAc80jdAdTmg7cd+g C7aBRrv6mBrS3Ex1/L03UGVnfgGUYB6quhhD3uItSRkGWhNzWloWAkdkD7CU+V4qd6Hn88 hiJf6VGY+XG4/QzLeHdwlJzMbVkEafUDJf28fGLcj/qlC2CouYZBoRaJ/SvPOuluU8jrgd 3Grtehz7Qs9ctheIWvkFS0jZteTRw9lOyi5wiIffbzVTggmsl+2f1vlO11RLiNoCer5dPk ri3FZwkK7MMswmed3oxEb03KdmlElRjGkAssdn42TpS3Rv/92vqYnsHVePZvTg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1781032811; a=rsa-sha256; cv=none; b=bV4TqkgPGhuZFyhBXEdxSv03ftdqyYzo1FOeTdrBus9udDZLg4/p+YSlBxg1nk4cict41E 1UkTqwg8Yi56N17yoKBWwdfPZYSRwJS12QOVhjXAKO5og2d18IOVFX2vll7Es+tq1Fqzr+ vgdWxya30nK9gURonSYwNZW3/AbXbIh3essMoT1bAOqAfjWRtfRiXMYKI++lMdieyljKPk vsoTDbanQAr/NEt0DPVznIY6uAE1psBlMnVbsH290Er7ZPVEDmxCPbOzYaoiyVtynzVaOp QRCn61JFdgfSvS1nkIdRV2cBvhMkgl02vnXrvSkZPy/cmi03+s62sDmUHrnfFQ== 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=1781032811; 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=xMaMPIFG/doTxT3pm07XzmYVtaB83fJMc//s7YX6wF0=; b=GGgNEXTzuSOmmXF/RZWxA+MvDBPkWa9wqJ2+fEXvhCyM/iUMfwI01SQlZJV0Q5L+lPNG7g rWEKbmr75ieEWFM54mn5mYBse8YQsrW5Zlvk9ySh9qdfnTx86Bm9uInC2q0O6qzPB41+tG 81JjzNRtOt5tVQTXFm4YBVfLNJ5N4GvWamNRb+z7wiyy5g4CTa/2HBSwCaPOplKUesVlUK jFz9AvciKvEQoS05rrxExj0hvW/33wNO0kIfqrf6zhNlC8FDZK1AILO9Cfe8YBwk3i32wt lugtJlSvfyLkPlez8W4dI0RFNA5YTxU4yjQMOL+Mq+tXX8bcoIUagBgE289ENw== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4gZdyz43NHzp43 for ; Tue, 09 Jun 2026 19:20:11 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 3f78c by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Tue, 09 Jun 2026 19:20:11 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Mark Johnston Subject: git: a4d36c975be0 - releng/15.1 - linux: Correct the issetugid check in copyout_auxargs 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 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: markj X-Git-Repository: src X-Git-Refname: refs/heads/releng/15.1 X-Git-Reftype: branch X-Git-Commit: a4d36c975be0c066979471e5f8a6c729757ad0b0 Auto-Submitted: auto-generated Date: Tue, 09 Jun 2026 19:20:11 +0000 Message-Id: <6a28676b.3f78c.5b52babe@gitrepo.freebsd.org> The branch releng/15.1 has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=a4d36c975be0c066979471e5f8a6c729757ad0b0 commit a4d36c975be0c066979471e5f8a6c729757ad0b0 Author: Mark Johnston AuthorDate: 2026-05-29 21:41:35 +0000 Commit: Mark Johnston CommitDate: 2026-06-09 02:59:54 +0000 linux: Correct the issetugid check in copyout_auxargs The runtime linker in glibc relies on the AT_SECURE auxv entry to know whether the executable is set-ugid, if so then various dangerous functionality such as LD_PRELOAD is disabled. The check added in commit 669414e4fb74 failed to take into account the fact that during execve, P_SUGID may not yet be set for a set-ugid process. Correct the test. Approved by: re (cperciva) Approved by: so Security: FreeBSD-SA-26:30.linux Security: CVE-2026-49413 Reported by: Minseong Kim Fixes: 669414e4fb74 ("Implement AT_SECURE properly.") Reviewed by: kib Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D57350 --- sys/compat/linux/linux_elf.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/sys/compat/linux/linux_elf.c b/sys/compat/linux/linux_elf.c index c9eb6aea8373..6c9f785c97e7 100644 --- a/sys/compat/linux/linux_elf.c +++ b/sys/compat/linux/linux_elf.c @@ -492,11 +492,9 @@ __linuxN(copyout_auxargs)(struct image_params *imgp, uintptr_t base) struct thread *td = curthread; Elf_Auxargs *args; Elf_Auxinfo *aarray, *pos; - struct proc *p; int error, issetugid; - p = imgp->proc; - issetugid = p->p_flag & P_SUGID ? 1 : 0; + issetugid = imgp->credential_setid ? 1 : 0; args = imgp->auxargs; aarray = pos = malloc(LINUX_AT_COUNT * sizeof(*pos), M_TEMP, M_WAITOK | M_ZERO);