From nobody Sun Oct 10 09:24:12 2021 X-Original-To: dev-commits-src-branches@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 9A57D12DF226; Sun, 10 Oct 2021 09:24:14 +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 4HRxMK4c0jz3N4N; Sun, 10 Oct 2021 09:24:13 +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 82CC92D58; Sun, 10 Oct 2021 09:24:12 +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 19A9OC7r003386; Sun, 10 Oct 2021 09:24:12 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 19A9OCjo003385; Sun, 10 Oct 2021 09:24:12 GMT (envelope-from git) Date: Sun, 10 Oct 2021 09:24:12 GMT Message-Id: <202110100924.19A9OCjo003385@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: 83c2118058fd - stable/13 - ia32_get_fpcontext(): xfpusave can be legitimately NULL List-Id: Commits to the stable branches of the FreeBSD src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-branches List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-branches@freebsd.org X-BeenThere: dev-commits-src-branches@freebsd.org 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/13 X-Git-Reftype: branch X-Git-Commit: 83c2118058fda07dff1248e4e1b2439fb4700d8a Auto-Submitted: auto-generated X-ThisMailContainsUnwantedMimeParts: N The branch stable/13 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=83c2118058fda07dff1248e4e1b2439fb4700d8a commit 83c2118058fda07dff1248e4e1b2439fb4700d8a Author: Konstantin Belousov AuthorDate: 2021-09-21 21:09:34 +0000 Commit: Konstantin Belousov CommitDate: 2021-10-10 09:21:17 +0000 ia32_get_fpcontext(): xfpusave can be legitimately NULL (cherry picked from commit c2ee4dfd04970f1597eea58bb30eb93e1ed5a491) --- 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 1ca19072a1dc..ab7100f5b9fb 100644 --- a/sys/amd64/ia32/ia32_signal.c +++ b/sys/amd64/ia32/ia32_signal.c @@ -99,6 +99,8 @@ ia32_get_fpcontext(struct thread *td, struct ia32_mcontext *mcp, bcopy(get_pcb_user_save_td(td), &mcp->mc_fpstate[0], sizeof(mcp->mc_fpstate)); mcp->mc_fpformat = fpuformat(); + if (xfpusave == NULL) + return; if (!use_xsave || cpu_max_ext_state_size <= sizeof(struct savefpu)) { *xfpusave_len = 0; *xfpusave = NULL;