From owner-dev-commits-src-all@freebsd.org Sat May 1 00:39:15 2021 Return-Path: Delivered-To: dev-commits-src-all@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 B781962E975; Sat, 1 May 2021 00:39:15 +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 4FX9NM2dtTz3py7; Sat, 1 May 2021 00:39:15 +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 1B10B5AFE; Sat, 1 May 2021 00:39:15 +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 1410dEuK048323; Sat, 1 May 2021 00:39:14 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 1410dEW6048322; Sat, 1 May 2021 00:39:14 GMT (envelope-from git) Date: Sat, 1 May 2021 00:39:14 GMT Message-Id: <202105010039.1410dEW6048322@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: d13215b99d0b - stable/12 - pseudofs: limit writes to 1M 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: d13215b99d0b9d04de111dd469938e6854fc3493 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 01 May 2021 00:39:16 -0000 The branch stable/12 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=d13215b99d0b9d04de111dd469938e6854fc3493 commit d13215b99d0b9d04de111dd469938e6854fc3493 Author: Konstantin Belousov AuthorDate: 2021-04-13 19:48:44 +0000 Commit: Konstantin Belousov CommitDate: 2021-05-01 00:38:30 +0000 pseudofs: limit writes to 1M (cherry picked from commit 5edf7227ec339f651c7328e63df323f6ef10345f) --- sys/fs/pseudofs/pseudofs_vnops.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sys/fs/pseudofs/pseudofs_vnops.c b/sys/fs/pseudofs/pseudofs_vnops.c index 6c025547b71b..510b6936d2fa 100644 --- a/sys/fs/pseudofs/pseudofs_vnops.c +++ b/sys/fs/pseudofs/pseudofs_vnops.c @@ -996,6 +996,9 @@ pfs_write(struct vop_write_args *va) if (pn->pn_fill == NULL) PFS_RETURN (EIO); + if (uio->uio_resid > PFS_MAXBUFSIZ) + PFS_RETURN (EIO); + /* * This is necessary because either process' privileges may * have changed since the open() call.