From nobody Sun Jun 21 11:48:08 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 4gjqMs5g2Jz6jZbl for ; Sun, 21 Jun 2026 11:48:09 +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 "YR1" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4gjqMr5Jsbz3WCy for ; Sun, 21 Jun 2026 11:48:08 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1782042488; 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=07Ntv1OwOz5fKbxGvL6AFX7VkgbnGs/pr5L1PUbZtk8=; b=Nkv3VqkC0HtBxdVPxOfgd7S29RjnQ61gqZdh9BwygGOu9BeDWtGbKJ9pmMca/g61+zN52m pw/mPtB81jI1Pa0O8+gA+bZYSEXV5KyP+Dr0SgaqvQELyVPmhWyEsuoayUwEd8z4lATycS O7YPMP4MhyI2sDKdiGRPwskBZZBMcqrgvfrBeqsXZUFCw6qFjr55shDel2foFDS55HfHm9 ePXGVsfQs51FIIiHZceTQV77CqWsoSRgOA0oD6bFxLg8lzhGd7gDc+c+Jm6UYBziRRu5/6 NnyaQGMWLIsH/UJn35nltFPlwCU2Fw8dBPt3KJPOcvFlO2FOrEaue+EIAmgCgg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1782042488; a=rsa-sha256; cv=none; b=h39sCsT2B8rv46EYBcaEwPiW5S7/v68gFmADEjuMi5gOdd76uD5vxB2ptY2YsZYG/BvBsI MhAjITOCBP5Uz0TIqhA6NrS4Nygev0I265LOMNMaCGy7dL4PzKHnTLuNKwWu/GC36oEe4M vonxXan32ct6auNQUtV+sBN3LzZnpFGhvNUTG8DiP2OT+Glc/i24lWP6VkSjpqRopFsLL4 Vcl7GxJtkABGe4shmAYpRkCocYkdWm/uWw0GKoqX9MYdVfwh+Ff+X4dCnDs4qR1GsDXdfA EekiHXEYh+oVm2yQoGEaTtJTeNgpKiWdt1qk/+mKJaQ1rpvjrhcWyDTqw2AG1g== 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=1782042488; 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=07Ntv1OwOz5fKbxGvL6AFX7VkgbnGs/pr5L1PUbZtk8=; b=k/kCtU2OQ4j3qO20oWrq4YWCbw91s+3RZ8FHdeWZobI9cx+6fEXAVTOvLNFJiMc7Y/Lehh yRHTTMx4sWbwSM5a8elT0rvdecqLrXJpkPpb2yHMy9oH4jHjZAMDXYibPaP0vQPzy+VNha MnW2rzCg0BoYYOHiPESd0Cp9sWWNnYyANAs6Wwn+Qni/bIi7wgrQifcUQnK77b+c2p1tOc Y7jtKvnnyCPCEgrdtw0Yv72aHeYHCsROVgXTlL+RanDJMaX3btp1Jlh3oNs5nlZgIRZOFQ VMyzywBthhMm05W6g4fnK3HpXjP84+qlBI3lYW3vg04w/7ui/w/hEvYjKwBFsg== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4gjqMr3c05z1DV6 for ; Sun, 21 Jun 2026 11:48:08 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 266e4 by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Sun, 21 Jun 2026 11:48:08 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Konstantin Belousov Subject: git: 79b384bd8fdf - main - kern_event: block the target process from execing for sysctl kern.proc.kqueue 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: kib X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 79b384bd8fdff4869ce4799edb0342ff5c25b6fa Auto-Submitted: auto-generated Date: Sun, 21 Jun 2026 11:48:08 +0000 Message-Id: <6a37cf78.266e4.1ed32855@gitrepo.freebsd.org> The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=79b384bd8fdff4869ce4799edb0342ff5c25b6fa commit 79b384bd8fdff4869ce4799edb0342ff5c25b6fa Author: Konstantin Belousov AuthorDate: 2026-06-16 03:48:29 +0000 Commit: Konstantin Belousov CommitDate: 2026-06-21 11:46:53 +0000 kern_event: block the target process from execing for sysctl kern.proc.kqueue Reviewed by: markj Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D57497 --- sys/kern/kern_event.c | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) diff --git a/sys/kern/kern_event.c b/sys/kern/kern_event.c index 8c7a0949f024..01bd22fbefd1 100644 --- a/sys/kern/kern_event.c +++ b/sys/kern/kern_event.c @@ -49,6 +49,7 @@ #include #include #include +#include #include #include #include @@ -3381,10 +3382,6 @@ sysctl_kern_proc_kqueue(SYSCTL_HANDLER_ARGS) if ((u_int)arg2 > 2 || (u_int)arg2 == 0) return (EINVAL); - error = pget((pid_t)name[0], PGET_HOLD | PGET_CANDEBUG, &p); - if (error != 0) - return (error); - td = curthread; #ifdef COMPAT_FREEBSD32 compat32 = SV_CURPROC_FLAG(SV_ILP32); @@ -3392,6 +3389,17 @@ sysctl_kern_proc_kqueue(SYSCTL_HANDLER_ARGS) compat32 = false; #endif + error = pget((pid_t)name[0], PGET_NOTWEXIT, &p); + if (error != 0) + return (error); + + _PHOLD(p); + execve_block_wait(td, p); + error = p_candebug(td, p); + if (error != 0) + goto out1; + PROC_UNLOCK(p); + s = sbuf_new_for_sysctl(&sm, NULL, 0, req); if (s == NULL) { error = ENOMEM; @@ -3412,7 +3420,11 @@ sysctl_kern_proc_kqueue(SYSCTL_HANDLER_ARGS) sbuf_delete(s); out: - PRELE(p); + PROC_LOCK(p); +out1: + execve_unblock(td, p); + _PRELE(p); + PROC_UNLOCK(p); return (error); }