Received: by mail.netbsd.org (Postfix, from userid 605) id E6A6E84DE7; Wed, 1 Jan 2020 14:52:39 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mail.netbsd.org (Postfix) with ESMTP id 656DF84DE3 for ; Wed, 1 Jan 2020 14:52:39 +0000 (UTC) X-Virus-Scanned: amavisd-new at netbsd.org Received: from mail.netbsd.org ([IPv6:::1]) by localhost (mail.netbsd.org [IPv6:::1]) (amavisd-new, port 10025) with ESMTP id 6y2krjS8-nmU for ; Wed, 1 Jan 2020 14:52:39 +0000 (UTC) Received: from cvs.NetBSD.org (ivanova.netbsd.org [199.233.217.197]) by mail.netbsd.org (Postfix) with ESMTP id EB7E384C2B for ; Wed, 1 Jan 2020 14:52:38 +0000 (UTC) Received: by cvs.NetBSD.org (Postfix, from userid 500) id DC81AFA97; Wed, 1 Jan 2020 14:52:38 +0000 (UTC) Content-Disposition: inline Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" MIME-Version: 1.0 Date: Wed, 1 Jan 2020 14:52:38 +0000 From: "Maxime Villard" Subject: CVS commit: src/sys/compat To: source-changes@NetBSD.org X-Mailer: log_accum Message-Id: <20200101145238.DC81AFA97@cvs.NetBSD.org> Sender: source-changes-owner@NetBSD.org List-Id: source-changes.NetBSD.org Precedence: bulk Reply-To: source-changes-d@NetBSD.org Mail-Reply-To: "Maxime Villard" Mail-Followup-To: source-changes-d@NetBSD.org List-Unsubscribe: Module Name: src Committed By: maxv Date: Wed Jan 1 14:52:38 UTC 2020 Modified Files: src/sys/compat/common: kern_sig_43.c src/sys/compat/netbsd32: netbsd32_compat_20.c netbsd32_compat_50.c Log Message: Fix three stack info leaks, found by kMSan when just invoking all syscalls with a zero page as argument. MSan: Uninitialized Stack Memory In copyout() At Offset 0, Variable 'sb32' From compat_20_netbsd32_getfsstat() MSan: Uninitialized Stack Memory In copyout() At Offset 12, Variable 'oss' From compat_43_sys_sigstack() MSan: Uninitialized Stack Memory In copyout() At Offset 0, Variable 'sb' From compat_50_netbsd32___fhstat40() To generate a diff of this commit: cvs rdiff -u -r1.35 -r1.36 src/sys/compat/common/kern_sig_43.c cvs rdiff -u -r1.38 -r1.39 src/sys/compat/netbsd32/netbsd32_compat_20.c cvs rdiff -u -r1.43 -r1.44 src/sys/compat/netbsd32/netbsd32_compat_50.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.