From nobody Thu May 12 22:56:35 2022 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 148B61AE4D4C; Thu, 12 May 2022 22:56:37 +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 4KznFw1dhYz3GP2; Thu, 12 May 2022 22:56:35 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1652396196; 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=0Z1nTYZFyAHNlnJ8tDSIYREoGU200tHB8eFTQ69mDwQ=; b=RfJP4cJ1r5C5KsRQHzyz3JiNU4qNErdGM7Dh+5yEGWjNhLN+TI08n4JJ1WRhzLb5ZYGXZd TvaaSntdWTVN0XY3rAJIUs9SpJhuXJax1UB5Dj1ioaii1WMfJXle1kjjv1i09PMbarBN7k WtqC/KPk/6CI2d2d/Cn1BgShuEdn76fkahHhvWydBEZ98F8VNANPAg7dKd0pKlhOCVsrNf tSO0/X+4ZADJSz8Da4htRXn+9d9gg96WvMneegjz6zqCffQrB4C/y9o5kjEAC22PB2cf3Z XT/ZcGVH5u9hBH5py3PLMRsri29Lr2GJE+E3o92U0uaHTMRL4u+aKgSYuW2JYA== 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 B047F17516; Thu, 12 May 2022 22:56:35 +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 24CMuZTp020696; Thu, 12 May 2022 22:56:35 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 24CMuZpr020695; Thu, 12 May 2022 22:56:35 GMT (envelope-from git) Date: Thu, 12 May 2022 22:56:35 GMT Message-Id: <202205122256.24CMuZpr020695@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: 17cb4e662e17 - stable/13 - elf: Avoid dumping uninitialized bytes in PRSTATUS core dump notes 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: jhb X-Git-Repository: src X-Git-Refname: refs/heads/stable/13 X-Git-Reftype: branch X-Git-Commit: 17cb4e662e17d9d5bc295bfa1f55cdae400ab5e8 Auto-Submitted: auto-generated ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1652396196; 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=0Z1nTYZFyAHNlnJ8tDSIYREoGU200tHB8eFTQ69mDwQ=; b=fWtou8ANdmf/dgOf3KrUQxuRwqFDcLjkKzYioC8zZaP4H3s7a/TJSyjUF2CcknDbBMZ2Lz KScjPPrYMjt0jnxnJDQ3hY5wIxV1lcv1MLi+No9q7ZOq1+A5/MI/nWwTqpVLY63PWP1HEH a2uueNfk2s5eB84KI+vJvmdTecwei7x9JkFj27PavpJOsh26CkMxe9IDTKTuXaturyrF5U V7g1mHgCeHNKjQTSLKwOoXpBylLHelDP4ljMyFEED7TAMbiMYr3TpRTR6mDhJJAeogi81Q u7nTV5RfJWQXRVZ4vyNYFxJzJDEu8jwxWsBN5/95n9IoD9F0/j8wl9FnWKyG+A== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1652396196; a=rsa-sha256; cv=none; b=PBv3SyePaklw7aCI9j33Aimw7Fxa7JRj+oD09dVwYcYj2cGQxwnr4M9fwF1HuCufVfiiAW sfiwKQHd1WYY/3E/iV5U4S4AIGjVddcCKFufpoKlmhrcH7IQyLIDPABPafXYnPb4PmeE58 yQiO717OPq+2LByWbLQpNcfsdo5Rqhzak56iT8zhYIRURfC0nwetBjXj8nVe8uCThqUO6D JXgfiHVb3d72iKD5f6cuIFEOcDCgNrqLKyZZb6unX4Z4k2y1p0Np16SSvji4FxjpLQYmMq owofO2QR6tq7onpe5j5ph4Csn34d+SGVvv/8DjDIZdw450G/+zrxgWp9uxBn2g== 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=17cb4e662e17d9d5bc295bfa1f55cdae400ab5e8 commit 17cb4e662e17d9d5bc295bfa1f55cdae400ab5e8 Author: Mark Johnston AuthorDate: 2022-03-23 16:52:44 +0000 Commit: John Baldwin CommitDate: 2022-05-12 22:12:59 +0000 elf: Avoid dumping uninitialized bytes in PRSTATUS core dump notes elf_prstatus_t contains pad space. Reported by: KMSAN MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D34606 (cherry picked from commit 1babcad6bc4093664a10c7ab98b9ebd2d64bcaaf) --- sys/kern/imgact_elf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sys/kern/imgact_elf.c b/sys/kern/imgact_elf.c index 419449262978..c39a865dcf05 100644 --- a/sys/kern/imgact_elf.c +++ b/sys/kern/imgact_elf.c @@ -2180,6 +2180,7 @@ __elfN(get_prstatus)(struct regset *rs, struct thread *td, void *buf, KASSERT(*sizep == sizeof(*status), ("%s: invalid size", __func__)); status = buf; + memset(status, 0, *sizep); status->pr_version = PRSTATUS_VERSION; status->pr_statussz = sizeof(elf_prstatus_t); status->pr_gregsetsz = sizeof(elf_gregset_t);