Date: Wed, 16 Jul 2014 14:08:01 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r268766 - head/sys/fs/tmpfs Message-ID: <201407161408.s6GE81WR004569@svn.freebsd.org>
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Author: kib Date: Wed Jul 16 14:08:01 2014 New Revision: 268766 URL: http://svnweb.freebsd.org/changeset/base/268766 Log: Do not ignore error from tmpfs_alloc_vp(). It results in access to the random memory. Reported and tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 2 weeks Modified: head/sys/fs/tmpfs/tmpfs_vnops.c Modified: head/sys/fs/tmpfs/tmpfs_vnops.c ============================================================================== --- head/sys/fs/tmpfs/tmpfs_vnops.c Wed Jul 16 14:06:16 2014 (r268765) +++ head/sys/fs/tmpfs/tmpfs_vnops.c Wed Jul 16 14:08:01 2014 (r268766) @@ -185,7 +185,9 @@ tmpfs_lookup(struct vop_cachedlookup_arg cnp->cn_flags |= SAVENAME; } else { error = tmpfs_alloc_vp(dvp->v_mount, tnode, - cnp->cn_lkflags, vpp); + cnp->cn_lkflags, vpp); + if (error != 0) + goto out; } } }
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