From owner-svn-src-all@freebsd.org Tue Nov 26 12:20:44 2019 Return-Path: Delivered-To: svn-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id BAE961B485F; Tue, 26 Nov 2019 12:20:44 +0000 (UTC) (envelope-from hselasky@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) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 47Mjfh4W0sz3GwV; Tue, 26 Nov 2019 12:20:44 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 7BA2E24EAE; Tue, 26 Nov 2019 12:20:44 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id xAQCKiU5068090; Tue, 26 Nov 2019 12:20:44 GMT (envelope-from hselasky@FreeBSD.org) Received: (from hselasky@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id xAQCKi3b068073; Tue, 26 Nov 2019 12:20:44 GMT (envelope-from hselasky@FreeBSD.org) Message-Id: <201911261220.xAQCKi3b068073@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: hselasky set sender to hselasky@FreeBSD.org using -f From: Hans Petter Selasky Date: Tue, 26 Nov 2019 12:20:44 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r355108 - head/sys/kern X-SVN-Group: head X-SVN-Commit-Author: hselasky X-SVN-Commit-Paths: head/sys/kern X-SVN-Commit-Revision: 355108 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Nov 2019 12:20:44 -0000 Author: hselasky Date: Tue Nov 26 12:20:44 2019 New Revision: 355108 URL: https://svnweb.freebsd.org/changeset/base/355108 Log: Fix panic when loading kernel modules before root file system is mounted. Make sure the rootvnode is always NULL checked. Differential Revision: https://reviews.freebsd.org/D22545 PR: 241639 MFC after: 1 week Sponsored by: Mellanox Technologies Modified: head/sys/kern/kern_linker.c Modified: head/sys/kern/kern_linker.c ============================================================================== --- head/sys/kern/kern_linker.c Tue Nov 26 05:54:25 2019 (r355107) +++ head/sys/kern/kern_linker.c Tue Nov 26 12:20:44 2019 (r355108) @@ -2079,14 +2079,16 @@ linker_load_module(const char *kldname, const char *mo */ KASSERT(verinfo == NULL, ("linker_load_module: verinfo" " is not NULL")); + if (rootvnode == NULL) + return (ENXIO); pathname = linker_search_kld(kldname); } else { if (modlist_lookup2(modname, verinfo) != NULL) return (EEXIST); + if (rootvnode == NULL) + return (ENXIO); if (kldname != NULL) pathname = strdup(kldname, M_LINKER); - else if (rootvnode == NULL) - pathname = NULL; else /* * Need to find a KLD with required module