From nobody Fri Oct 8 01:16:23 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 16FDD12D065D; Fri, 8 Oct 2021 01:16:26 +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 4HQVdN150Sz3tH4; Fri, 8 Oct 2021 01:16:23 +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 913821D94F; Fri, 8 Oct 2021 01:16:23 +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 1981GNeL010501; Fri, 8 Oct 2021 01:16:23 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 1981GNaG010500; Fri, 8 Oct 2021 01:16:23 GMT (envelope-from git) Date: Fri, 8 Oct 2021 01:16:23 GMT Message-Id: <202110080116.1981GNaG010500@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Kyle Evans Subject: git: 2f6799782529 - stable/12 - loader: zfs.c is missing malloc checks, fix it 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: kevans X-Git-Repository: src X-Git-Refname: refs/heads/stable/12 X-Git-Reftype: branch X-Git-Commit: 2f6799782529d18e13eb9bb102b942338a2829c8 Auto-Submitted: auto-generated X-ThisMailContainsUnwantedMimeParts: N The branch stable/12 has been updated by kevans: URL: https://cgit.FreeBSD.org/src/commit/?id=2f6799782529d18e13eb9bb102b942338a2829c8 commit 2f6799782529d18e13eb9bb102b942338a2829c8 Author: Toomas Soome AuthorDate: 2019-11-03 14:36:16 +0000 Commit: Kyle Evans CommitDate: 2021-10-08 01:15:58 +0000 loader: zfs.c is missing malloc checks, fix it malloc() can return NULL, we need to check the return value. (cherry picked from commit 21da9f14f6144429874a286bfe21a16cbb0dbabd) --- stand/libsa/zfs/zfs.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/stand/libsa/zfs/zfs.c b/stand/libsa/zfs/zfs.c index 9386dd7b3729..a8a02c5697cb 100644 --- a/stand/libsa/zfs/zfs.c +++ b/stand/libsa/zfs/zfs.c @@ -110,9 +110,10 @@ zfs_open(const char *upath, struct open_file *f) return (EINVAL); /* allocate file system specific data structure */ - fp = malloc(sizeof(struct file)); - bzero(fp, sizeof(struct file)); - f->f_fsdata = (void *)fp; + fp = calloc(1, sizeof(struct file)); + if (fp == NULL) + return (ENOMEM); + f->f_fsdata = fp; rc = zfs_lookup(mount, upath, &fp->f_dnode); fp->f_seekp = 0; @@ -129,9 +130,7 @@ zfs_close(struct open_file *f) struct file *fp = (struct file *)f->f_fsdata; dnode_cache_obj = NULL; - f->f_fsdata = (void *)0; - if (fp == (struct file *)0) - return (0); + f->f_fsdata = NULL; free(fp); return (0); @@ -250,7 +249,9 @@ zfs_readdir(struct open_file *f, struct dirent *d) return (rc); fp->f_seekp = bsize; - fp->f_zap_leaf = (zap_leaf_phys_t *)malloc(bsize); + fp->f_zap_leaf = malloc(bsize); + if (fp->f_zap_leaf == NULL) + return (ENOMEM); rc = dnode_read(spa, &fp->f_dnode, fp->f_seekp, fp->f_zap_leaf, @@ -684,8 +685,9 @@ zfs_dev_open(struct open_file *f, ...) return (ENXIO); mount = malloc(sizeof(*mount)); if (mount == NULL) - return (ENOMEM); - rv = zfs_mount(spa, dev->root_guid, mount); + rv = ENOMEM; + else + rv = zfs_mount(spa, dev->root_guid, mount); if (rv != 0) { free(mount); return (rv);