From owner-dev-commits-src-branches@freebsd.org Sat May 1 00:39:08 2021 Return-Path: Delivered-To: dev-commits-src-branches@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 9B63162E9EE; Sat, 1 May 2021 00:39:08 +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 "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4FX9ND3XjPz3pvk; Sat, 1 May 2021 00:39:08 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (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 43DF85AFB; Sat, 1 May 2021 00:39:08 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 1410d8k5048191; Sat, 1 May 2021 00:39:08 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 1410d8DD048190; Sat, 1 May 2021 00:39:08 GMT (envelope-from git) Date: Sat, 1 May 2021 00:39:08 GMT Message-Id: <202105010039.1410d8DD048190@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Konstantin Belousov Subject: git: ce8a17c2ba6c - stable/12 - amd64: clear debug registers on execing 32bit native binary 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/12 X-Git-Reftype: branch X-Git-Commit: ce8a17c2ba6cb1dba49d25c70b91ff8203ad816c Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-branches@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commits to the stable branches of the FreeBSD src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 01 May 2021 00:39:08 -0000 The branch stable/12 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=ce8a17c2ba6cb1dba49d25c70b91ff8203ad816c commit ce8a17c2ba6cb1dba49d25c70b91ff8203ad816c Author: Konstantin Belousov AuthorDate: 2021-04-09 23:23:54 +0000 Commit: Konstantin Belousov CommitDate: 2021-05-01 00:38:29 +0000 amd64: clear debug registers on execing 32bit native binary (cherry picked from commit d50adfec9ee73e88e8d365525f1acef2c1db798a) --- sys/amd64/ia32/ia32_signal.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sys/amd64/ia32/ia32_signal.c b/sys/amd64/ia32/ia32_signal.c index 72f35af75b85..4342d6fb807d 100644 --- a/sys/amd64/ia32/ia32_signal.c +++ b/sys/amd64/ia32/ia32_signal.c @@ -971,6 +971,8 @@ ia32_setregs(struct thread *td, struct image_params *imgp, u_long stack) regs->tf_gs = _ugssel; regs->tf_flags = TF_HASSEGS; + x86_clear_dbregs(pcb); + fpstate_drop(td); /* Return via doreti so that we can change to a different %cs */