From nobody Mon Jul 25 23:27:40 2022 X-Original-To: riscv@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 4LsGRc44Klz4X5mQ for ; Mon, 25 Jul 2022 23:27:40 +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 "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4LsGRc21V2z41JD for ; Mon, 25 Jul 2022 23:27:40 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) 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 4LsGRc0kSdzFSJ for ; Mon, 25 Jul 2022 23:27:40 +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 26PNRdeg035559 for ; Mon, 25 Jul 2022 23:27:39 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 26PNRdDn035558 for riscv@FreeBSD.org; Mon, 25 Jul 2022 23:27:39 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: riscv@FreeBSD.org Subject: [Bug 265439] copyin() repeatedly traps on some illegal user addresses on RISC-V Date: Mon, 25 Jul 2022 23:27:40 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: riscv X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: jrtc27@freebsd.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: markj@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status cc assigned_to Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: FreeBSD on the RISC-V instruction set architecture List-Archive: https://lists.freebsd.org/archives/freebsd-riscv List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-riscv@freebsd.org X-BeenThere: freebsd-riscv@freebsd.org MIME-Version: 1.0 ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1658791660; 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=UvZejsazY4BUn9f+lQvFgeSyPle+Ee69/LIELvxfhxk=; b=HIrUu6HVpHHczmSxhNvG2qvNtoOTxirCwMDNJFAXnl5XoORqOpTApLuCxErh346J06COo+ ZpxGHsJ62/eDdQKrzAEBwzeeJTAPS9J8LYbopwSrVsAVEjQ43VSAwq0UKdStoxzboY1xqW XVFjykPJ8ErLyrf3l/zNCSKHK4Bt6ZxMLr4BHHZppIbfmkzQf5xwVyHWpbbVPmg9m+xF7w cbRNBlaDVaM5Z0oa9JBMlSv5/UfLy3yEN90hAvS5VoCIpTEU712J4KjRwwVtX/1m5siH2w A8cpu/Tk9LZydtM5RG4OZw0lo9QLbvwArej+9r7ERNQh6l09Fo2b+m04WDZOoA== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1658791660; a=rsa-sha256; cv=none; b=mq1wnVz4FaLBfLHyoYlubP3EBd89804m7IveUcI3atpi+AM7/osDFnSu4GpG8PZT7zvE7F 0RplVcaUiygJ2bPXFVcPym7TQ0hnxKyG6PJuwtBuN4fxVdhndsI7KP7nMH1ngIsFGSXUhx uKKnQ5RJiMvaSQPLR8YoFDBxjmSGuogpWDdchGxRl1a/wmKtjSWOEC/pORjDhbdTjPIQnG 3MtBFSlQIycSITm5LNSEUDxMNux1IPBgAvdF2XtZ49S1vU9ML/BRAKimW2TZKyWCdUKMLJ pp4DRy9j9LPif3ZkluUmkHiv63BlDL35ij225fjpm3978pqNvsnLZXNzRQko0g== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D265439 Jessica Clarke changed: What |Removed |Added ---------------------------------------------------------------------------- Status|New |Open CC| |jrtc27@freebsd.org Assignee|riscv@FreeBSD.org |markj@FreeBSD.org --- Comment #1 from Jessica Clarke --- This is a regression in 31218f3209ac ("riscv: Add support for enabling SV48 mode"), right? We do check VIRT_IS_VALID in page_fault_handler and will SIG= SEGV the process or panic the kernel depending on which mode faulted, and copyin= etc will check the address is for userspace before using it, but they check VM_MAX(_)USER_ADDRESS which is now the SV48 version even when SV39 is in us= e. --=20 You are receiving this mail because: You are the assignee for the bug.=