Date: Mon, 6 Feb 2012 17:28:55 +0000 (UTC) From: Jaakko Heinonen <jh@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r231089 - stable/8/sys/fs/pseudofs Message-ID: <201202061728.q16HStdM046076@svn.freebsd.org>
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Author: jh Date: Mon Feb 6 17:28:55 2012 New Revision: 231089 URL: http://svn.freebsd.org/changeset/base/231089 Log: MFC r229692: Check the return value of sbuf_finish() in pfs_readlink() and return ENAMETOOLONG if the buffer overflowed. Modified: stable/8/sys/fs/pseudofs/pseudofs_vnops.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) Modified: stable/8/sys/fs/pseudofs/pseudofs_vnops.c ============================================================================== --- stable/8/sys/fs/pseudofs/pseudofs_vnops.c Mon Feb 6 17:00:28 2012 (r231088) +++ stable/8/sys/fs/pseudofs/pseudofs_vnops.c Mon Feb 6 17:28:55 2012 (r231089) @@ -892,7 +892,11 @@ pfs_readlink(struct vop_readlink_args *v PFS_RETURN (error); } - sbuf_finish(&sb); + if (sbuf_finish(&sb) != 0) { + sbuf_delete(&sb); + PFS_RETURN (ENAMETOOLONG); + } + error = uiomove_frombuf(sbuf_data(&sb), sbuf_len(&sb), uio); sbuf_delete(&sb); PFS_RETURN (error);
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