From mboxrd@z Thu Jan 1 00:00:00 1970 From: Laurent Riffard Subject: [PATCH] reiser4: fix a use after free bug in reiser4_parse_options Date: Thu, 18 Nov 2004 00:09:36 +0100 Message-ID: <419BDA30.20707@free.fr> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigD23E6B6BE63CFF23DB5BA72B" Return-path: list-help: list-unsubscribe: list-post: Errors-To: flx@namesys.com List-Id: To: reiserfs-list@namesys.com --------------enigD23E6B6BE63CFF23DB5BA72B Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit This patch fix a "use after kfree" bug in reiser4_parse_options. Signed-off-by: Laurent Riffard --- diff -u linux-2.6-orig/fs/reiser4/vfs_ops.c linux-2.6/fs/reiser4/vfs_ops.c --- linux-2.6-orig/fs/reiser4/vfs_ops.c 2004-11-17 23:43:22.186242952 +0100 +++ linux-2.6/fs/reiser4/vfs_ops.c 2004-11-17 23:39:15.935678728 +0100 @@ -1060,8 +1060,6 @@ }); #endif - kfree(opts); - sbinfo->tmgr.atom_max_size = txnmgr_get_max_atom_size(s); sbinfo->tmgr.atom_max_age = REISER4_ATOM_MAX_AGE / HZ; sbinfo->tmgr.atom_max_flushers = ATOM_MAX_FLUSHERS; @@ -1089,6 +1087,9 @@ sbinfo->ra_params.flags = 0; result = parse_options(opt_string, opts, p - opts); + + kfree(opts); + if (result != 0) return result; -- laurent --------------enigD23E6B6BE63CFF23DB5BA72B Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFBm9o5UqUFrirTu6IRAsrNAJ47Aoeyh1PsKYhYlX1sv9m/rEnxRQCdHE9R 0Jz0aCr2850MGYGJbrnUkM4= =YOL8 -----END PGP SIGNATURE----- --------------enigD23E6B6BE63CFF23DB5BA72B--