From nobody Sun Jun 28 00:30:10 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 4gnr0L6Vytz6jDGJ for ; Sun, 28 Jun 2026 00:30:10 +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 4gnr0L4tq9z3dVK for ; Sun, 28 Jun 2026 00:30:10 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1782606610; 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=DSruYqfX0XpaHymE9b1PEM/JSr1OEO7dB99IUzNS1Tk=; b=WbjKPQuGIo0Arlz7EjAad4YRR4el+aGwApagDgakgQoZ1HUZXexXRVJcj4QzidENdlzXul Ip5/Oggh4DSHQNlRM5EUQLx2t1Wkjmt32Y90TPb1JFBzcaA+Phti4oIHwgKIu0cy5aenjL 3dNeaL1pyqJNI3aCnKS1YsxqAqzJGU/dcIrn9SVccHyadNWEJRc6E8i8MR8qHfRpsKJnS/ MiDLQX8JLVp1VVFafigHj75afbc/dc0+5328wXHw+wu9gtltspETEMsm/yfbjl3rNK7gEo lQFSVARAwZkSpq9EaJE6xBxZgMB4EJBzCYnaQPbPXxy7DSJy2E/5XOtG4ZV/0g== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1782606610; a=rsa-sha256; cv=none; b=Fj4Wy9AYvujIz1aFdOtUdaR9AgksmvuvWvPSxJZozzyLgO31pzLDLj2Eh4vHwubB58Qd7/ LdLiwhraSsP7SqugxHvxLH+94tlxznKFNiKYBCnJz2r62p1ORYYmqvx1ReRBGhQ1T/jbN0 aUQ+bL6HMjActG1a4psstz9cdvfPsKo314yVocoLLrq4J0XM4QDolBaekjnDR1yZiCZ7QD +D460NwXx9OL7157fEaa7QOTa0CiNtcwi8yuiM1n4iP5mQVuQtoFXR2lBepplqB3/aqi9E D3O1efHbHnqqP+b7kJybf1/ub6XTm9CUCtzCHUQvfKdAIuk36I//RQEGXIt/4w== 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=1782606610; 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=DSruYqfX0XpaHymE9b1PEM/JSr1OEO7dB99IUzNS1Tk=; b=ksyhnW6lQYdfDo/3gamKN1KSGRyxcIKlHcf3Z2Lzz4SfxjYguD6CQKq2KI3GcZS//HUb7r 9hLZ2XH/TRZCYz3NLM4A6FzuWl9Wut+hd0DPrw0mDBtsgnuQp+B4XlCPP3ca845Boueg3P tGsL2WojbEP4GXqTanjHCxzSH/MFEb3mVf3FjjY+C7E+CQ2RLGLYiuXaTFnqjMqux5/YIL B4mYnLCyzRGmFUEUitG/X21DyrD6nMsraTumLPRkSZFf8mNBUvYxezMGox49J7gvfHv/Fi JoKn7MrPbbZDLdzZ38ioO7lYFWYyuG+HS2Uq1gmEFWSmOkvVBoomvQAW+QpwUw== Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) by mxrelay.nyi.freebsd.org (Postfix) with ESMTP id 4gnr0L3gzDznGq for ; Sun, 28 Jun 2026 00:30:10 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from git (uid 1279) (envelope-from git@FreeBSD.org) id 3ea3d by gitrepo.freebsd.org (DragonFly Mail Agent v0.13+ on gitrepo.freebsd.org); Sun, 28 Jun 2026 00:30:10 +0000 To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Konstantin Belousov Subject: git: adb14791b752 - stable/14 - kern_event: block the target process from execing for sysctl kern.proc.kqueue 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: kib X-Git-Repository: src X-Git-Refname: refs/heads/stable/14 X-Git-Reftype: branch X-Git-Commit: adb14791b752cf0f07dce44d840f01340aa6d6cb Auto-Submitted: auto-generated Date: Sun, 28 Jun 2026 00:30:10 +0000 Message-Id: <6a406b12.3ea3d.3477a509@gitrepo.freebsd.org> The branch stable/14 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=adb14791b752cf0f07dce44d840f01340aa6d6cb commit adb14791b752cf0f07dce44d840f01340aa6d6cb Author: Konstantin Belousov AuthorDate: 2026-06-16 03:48:29 +0000 Commit: Konstantin Belousov CommitDate: 2026-06-28 00:29:00 +0000 kern_event: block the target process from execing for sysctl kern.proc.kqueue (cherry picked from commit 79b384bd8fdff4869ce4799edb0342ff5c25b6fa) --- 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 7c31a2f551ab..aaffbfce432c 100644 --- a/sys/kern/kern_event.c +++ b/sys/kern/kern_event.c @@ -49,6 +49,7 @@ #include #include #include +#include #include #include #include @@ -3070,10 +3071,6 @@ 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); @@ -3081,6 +3078,17 @@ 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; @@ -3101,7 +3109,11 @@ 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); }