From nobody Fri May 13 17:42:53 2022 X-Original-To: dev-commits-src-all@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 0662C1AE5396; Fri, 13 May 2022 17:42:55 +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 4L0GFV06kVz4SWc; Fri, 13 May 2022 17:42:53 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1652463774; 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; bh=USe6cNMrEpq6t3P5fFDqu/Mqf9ED/BlDywjiF+AyKN8=; b=ekYgdO6MmVGY/8l2JatT/sp3mKcaQa5z1geVG5bBpuEvrZPShUNSCk6EObPGbdNgOQS2iY Yecr0RZ76Ao14x030nVL4kvZfI0sPqScG4jWvvxOYddY2isssPLGt2zuElMkdWUasPpgm+ Ss4nWt47Gvzy9+j3kKRFa29LJWC1SechotzbzaukiWIJIMBw/1/ev8qQwegXowq8HwpmVY lprmUCZulTwxBGyKfU6fBWe84Lm40xo5YbWnY1pW6U2wMQKXm5rp21bcM+C7E4SUeROxza N+yNqubIbM2pV8dJsj4wX6jzTIf3/qGI2B1YAKT58RfxailLoVZTcJM9pXVy4A== 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 5F3D9270E6; Fri, 13 May 2022 17:42:53 +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 24DHgrkW055653; Fri, 13 May 2022 17:42:53 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 24DHgr1C055652; Fri, 13 May 2022 17:42:53 GMT (envelope-from git) Date: Fri, 13 May 2022 17:42:53 GMT Message-Id: <202205131742.24DHgr1C055652@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: John Baldwin Subject: git: fb3fa01a2df5 - stable/13 - arm: Zero padding in mcontext_vfp_t in get_vfpcontext(). List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-all@freebsd.org X-BeenThere: dev-commits-src-all@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: jhb X-Git-Repository: src X-Git-Refname: refs/heads/stable/13 X-Git-Reftype: branch X-Git-Commit: fb3fa01a2df5775a0068f946b89c37ee1918a370 Auto-Submitted: auto-generated ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1652463774; 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; bh=USe6cNMrEpq6t3P5fFDqu/Mqf9ED/BlDywjiF+AyKN8=; b=sxyoI32NLEPPdj6Q+21GvW4yjzHyph6jlPxIWpG/l3SK36NjWJS2NyaKcYlD5sf5ZbHO+Z B34EV5/nHVvD5h26xchA8S2vHc4yJG6wliZ78IkU0C/lh+khOYEFGoA1lthOCb39GBNZ6R yQErV4bjLivuw3quuVHdDnl3Z7yFDU0tjEICoKU9eWIF8eFzRRdqotyoFZ6ohIDep7iyw0 vVM0gzAIa+WE/V21If2Ma2jEl+yH6hRrHxTA7k5o0oUWWDc7WAI3tGD8GWkC8TXBQ/wJSE XigLDvtGMAjUfCNVFPnGzi4u08HeIpD0EeIU2gimaGl5e6Pl0euFTh+CGNnvFQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1652463774; a=rsa-sha256; cv=none; b=qBUQAvekSXhNkBZTWU1Xhkivja1IZw9E4c3DVmZFPzCB5f4u9XdcPR/d8o3mopyL+5iLt6 HC64TLlOHKEZfFig83xWxHHIA17wZQliOg6hb2nsaeeYPskd7SEF8QO0hj78qU4x6nOB1W WUhSaWuqxQhdRkPm1gI4TvgwICISjknx8bkq62V3GqzIzDrR+z6I3jyGcliY593U+me+eF IBAftQNuy6Gol3cXIy7zQ/vObEPVOsVLsk4Bn6yQ5j2AfTsSWf0qNymb2nmHehvxbJfqIb EW9tr2Tf3Ftol5jQraDloP41QAM0UjdwLJiwhMkkGMG4iR6VXJyp7YMkkC70Qw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N The branch stable/13 has been updated by jhb: URL: https://cgit.FreeBSD.org/src/commit/?id=fb3fa01a2df5775a0068f946b89c37ee1918a370 commit fb3fa01a2df5775a0068f946b89c37ee1918a370 Author: John Baldwin AuthorDate: 2022-03-25 16:57:20 +0000 Commit: John Baldwin CommitDate: 2022-05-13 16:45:19 +0000 arm: Zero padding in mcontext_vfp_t in get_vfpcontext(). This can leak kernel stack data otherwise. Reviewed by: imp, markj Sponsored by: The University of Cambridge, Google, Inc. Differential Revision: https://reviews.freebsd.org/D34594 (cherry picked from commit b234b8d911cdb4fe53032fde0cb8611ae9d0b81d) --- sys/arm/arm/exec_machdep.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sys/arm/arm/exec_machdep.c b/sys/arm/arm/exec_machdep.c index 865fc4d86288..defe17ed390c 100644 --- a/sys/arm/arm/exec_machdep.c +++ b/sys/arm/arm/exec_machdep.c @@ -103,6 +103,7 @@ get_vfpcontext(struct thread *td, mcontext_vfp_t *vfp) critical_exit(); } else MPASS(TD_IS_SUSPENDED(td)); + memset(vfp, 0, sizeof(*vfp)); memcpy(vfp->mcv_reg, pcb->pcb_vfpstate.reg, sizeof(vfp->mcv_reg)); vfp->mcv_fpscr = pcb->pcb_vfpstate.fpscr;