From nobody Wed Apr 2 16:21:38 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 4ZSVVq5qRGz5sVDx for ; Wed, 02 Apr 2025 16:21:39 +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 "R10" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4ZSVVq2QVnz3qTP for ; Wed, 02 Apr 2025 16:21:39 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1743610899; 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=dA/ASfs5OWb9yIJBryA/oYQ00VN2Beea8xqSe3haHBs=; b=q35WplQtfgpZY6UigHy1p+E2IRvKgIvJAsoOHfxFNCMwlufNceZcPN2V3HwLGznro4Duku W6kaHIaUlbKQwjj3zQEHlhjuGqTyJjf+u1uCgkuzHAw4B9n0pwCtyBer/sNIZNzbORi4X+ ZByjRSXmFDLBHIYrQI/IbA7UJRPef/A+yYxbYvZcU1BXiACuGupuI5m7TMDcMUSPEsCFZY 8HyLWR33jrnEDFhVd4EZxnakEN4p08MTqlV6/jh/1HJ9XLiKW30VuMFCaRsoI8pNpEhLtk 3N3WZQzsgRTAFiia8iSXSUdJpoGzdg/OqL1O5anu5gViRgz7Cqw1tO+IZAaxXQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1743610899; a=rsa-sha256; cv=none; b=YWuqwa7ccuRcYhs/LzL3Velpa85zeFajGuxty+8z5/5/9ss5LFw5RhktJed90mlI/QL0Pe JnAQwu4r1eRTuuiW2nDlSgPDRoWTfig7qYVwHosmwxC+t85A0hsZVEwDSDKFvaSm4iB0kj zcsCQrdgFGRnqvNScOVDiegBGvQ9aHhaF14/aXwKof482tZ9jrrzLCyJZRlqkJkZOZ+0oN TW7ZTLQZfwPwk8d57OipFu7x4corQvXf1bGAw+sh9+wMGWQCc0VjOkpsgA/g8Ok0ZVJBWQ MKH/PuzZphX6QnRhts2EH5aCipQ9nLPLaK8QOyYna+aJYH7blWxufCusCpgCfg== 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=1743610899; 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=dA/ASfs5OWb9yIJBryA/oYQ00VN2Beea8xqSe3haHBs=; b=BxCtW1aFv47L/nOy7CVwu2IPAuibUA1t1AtN75xscxaIhuuQ2mWBcant1VaDXdCURBqwaX e2jD0q9X6e2C0XXDEx3eLF1BthBMCsJdvLG+/5x2WHBcObBzkPoE0R8/QVTQ1fiskmSuoC Sa1Kwdw7oGsdMyeWQSTTF0dv7bv+LZ7oJkBaEZl3iVNYtqecxiKbfRgNuH0rnOn1RuicNj Hvziek5BgcE0PAfap7wW5ELro1/chTGwkzcGhR6rHDT+oko26SzXcBsOwT1ruEzMLhr6Es g6hGsf9wGY918APcy38Q6ek1r2nW2v40LrYxknLxrwhBG85RyznKwDltEQatKA== 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 4ZSVVq22ZPz7tt for ; Wed, 02 Apr 2025 16:21:39 +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 532GLdfE072389 for ; Wed, 2 Apr 2025 16:21:39 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 532GLdra072388 for net@FreeBSD.org; Wed, 2 Apr 2025 16:21:39 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 285813] Panic (NULL deref) in arptimer Date: Wed, 02 Apr 2025 16:21:38 +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: 14.2-STABLE X-Bugzilla-Keywords: crash X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: markj@FreeBSD.org X-Bugzilla-Status: Open 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=3D285813 --- Comment #8 from Mark Johnston --- I stared for a little while at lle_timer management on stable/14 and don't really see any problems. The callout is supposed to hold a ref on the LLE,= and llentry_free() stops the callout. The (dynamic) entry state is ARP_LLINFO_REACHABLE. I guess there is a narrow race condition somewhere, = but I don't see it. Has the panic happened just once? Did anything in particular appear to tri= gger it? --=20 You are receiving this mail because: You are the assignee for the bug.=