From nobody Sun Dec 14 19:18:26 2025 X-Original-To: net@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 4dTtJf2Bqfz6Khlv for ; Sun, 14 Dec 2025 19:18:26 +0000 (UTC) (envelope-from bugzilla-noreply@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 "R12" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dTtJf1VqPz3DMw for ; Sun, 14 Dec 2025 19:18:26 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1765739906; 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: in-reply-to:in-reply-to:references:references; bh=knrZ6cR54bF4Nb20ay7lndheqXkZFWWtoabNUPVtHy0=; b=pggXAix2hb6xBaUK/d1Y4TWQsoKQZBb3qYWQDs9mWGTs8eXMtYAjQcpSePGNQCMAwZVNvP Kpq/SuMIkXyNGHKnAs1tQhGd0kTOzI3gb8DinWzunpLrWwUWXLYLNJ26BJH4upvntrNb6p j/01fSUdcjob8CSWrXaTIg2EamNTW1izxecUqnsUjk7qhcu++qeCgwlb8NsKl1oO8wo3l8 H60J232gVDekteFrfjVh+6S2J3gWwrsC79b91B1GjTc4Xc6zDprAIRRR0UPiA5pF4Blqqg vwV4g6H/AQ3Zq7NnW8J7wLBvoeVtFXjQUeRwK0fRH1Q1be1xyz5WxedQK9jdwg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1765739906; 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: in-reply-to:in-reply-to:references:references; bh=knrZ6cR54bF4Nb20ay7lndheqXkZFWWtoabNUPVtHy0=; b=YAYg//+TFA1T5RIHqGKWZzzho4zsEW3pDAU9AIZ/XkUe444pSRElNYLMZXhC7eEQdaoRmJ +F6GKf0sP2mjZR6UHv5qFeHclNY9AF/ix33MqdqHkCUN4R5srPO23UkqaUrd+PgVDGXPmS +JHtwJVhXGUdovHIEKmZ4cKYmLeOpAe5gVFcd+6j91R3K3qNV/UWacNpsu/XE7R1isrbLz kAI0bxpb+J4YgYSwnqMCF1bzxwAI2Rs1L+zM7r2mUXYKE/H/TaX8c+L7bSUw1A7bz9qRSg ed3lOfoTpvqAxolrNLa/3nXCUpgIgx1yL0zFUSAESuh3g1I+CtAAmYJ/GpG+Dw== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1765739906; a=rsa-sha256; cv=none; b=pQIPt2hNKfGMaq+p2x0OB5/fXVXtcivznttDqZjznanXNd42zIYixY2f+NsYZC3Jxs99+g UbmilLPcDNn7YA18kE5ZJ3z7uvrjY/aXKKb3UbeJBd9iwKJ32OZ9Nt2WA02245PXOankdv Jo/IF0wkfDOkYYUi/QH28cn/k+sVHyBdwTXCVry6KRpYbguN/91Jx6JtVGIQd9yZ7aARZ/ oGVmZAbF6XN3pLGQwx48Jah+WgdklcoeRTvxGwcGn9XJagXgJK3cFlyINxDbKo2tmV43Jx I0VOTQrKYNH4AUIEuQ/pL7f77q6Y7Mh+5X85KZP7XRj0Bbo16vTmeWwCnS5kAg== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (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 did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4dTtJf13RBzn5B for ; Sun, 14 Dec 2025 19:18:26 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 5BEJIQhY052711 for ; Sun, 14 Dec 2025 19:18:26 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5BEJIQ2u052710 for net@FreeBSD.org; Sun, 14 Dec 2025 19:18:26 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 289017] [lagg] A time-of-check to time-of-use (TOCTOU) race exists in the Link Aggregation (LAGG) network subsystem Date: Sun, 14 Dec 2025 19:18:26 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.3-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: hanguidong02@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D289017 --- Comment #6 from Gui-Dong Han --- To reproduce the issue, compile poc.c and run it simultaneously with setup_and_trigger.sh. This combination reliably triggers the panic within seconds. --=20 You are receiving this mail because: You are the assignee for the bug.=