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From: Greg KH <greg@kroah.com>
To: linux-kernel@vger.kernel.org, stable@kernel.org,
	Andrew Morton <akpm@osdl.org>
Cc: Justin Forbes <jmforbes@linuxtx.org>,
	Zwane Mwaikambo <zwane@arm.linux.org.uk>,
	"Theodore Ts'o" <tytso@mit.edu>,
	Randy Dunlap <rdunlap@xenotime.net>,
	Dave Jones <davej@redhat.com>,
	Chuck Wolber <chuckw@quantumlinux.com>,
	Chris Wedgwood <reviews@ml.cw.f00f.org>,
	Michael Krufky <mkrufky@linuxtv.org>,
	torvalds@linux-foundation.org, akpm@linux-foundation.org,
	alan@lxorguk.ukuu.org.uk, Jeff Dike <jdike@addtoit.com>,
	Andi Kleen <ak@suse.de>,
	user-mode-linux-devel@lists.sourceforge.net,
	Paolo Blaisorblade Giarrusso <blaisorblade@yahoo.it>
Subject: [patch 18/18] x86_64: fix 2.6.18 regression - PTRACE_OLDSETOPTIONS should be accepted
Date: Tue, 20 Feb 2007 17:51:37 -0800	[thread overview]
Message-ID: <20070221015137.GS3684@kroah.com> (raw)
In-Reply-To: <20070221014927.GA3684@kroah.com>

[-- Attachment #1: x86_64-fix-2.6.18-regression-ptrace_oldsetoptions-should-be-accepted.patch --]
[-- Type: text/plain, Size: 1437 bytes --]

-stable review patch.  If anyone has any objections, please let us know.

------------------
From: "Paolo 'Blaisorblade' Giarrusso" <blaisorblade@yahoo.it>

Also PTRACE_OLDSETOPTIONS should be accepted, as done by kernel/ptrace.c and
forced by binary compatibility. UML/32bit breaks because of this - since it is wise
enough to use PTRACE_OLDSETOPTIONS to be binary compatible with 2.4 host
kernels.

Until 2.6.17 (commit f0f2d6536e3515b5b1b7ae97dc8f176860c8c2ce) we had:

       default:
                return sys_ptrace(request, pid, addr, data);

Instead here we have:
        case PTRACE_GET_THREAD_AREA:
	case ...:
                return sys_ptrace(request, pid, addr, data);

        default:
                return -EINVAL;

This change was a style change - when a case is added, it must be explicitly
tested this way. In this case, not enough testing was done.

Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 arch/x86_64/ia32/ptrace32.c |    1 +
 1 file changed, 1 insertion(+)

--- linux-2.6.18.7.orig/arch/x86_64/ia32/ptrace32.c
+++ linux-2.6.18.7/arch/x86_64/ia32/ptrace32.c
@@ -239,6 +239,7 @@ asmlinkage long sys32_ptrace(long reques
 	case PTRACE_SINGLESTEP:
 	case PTRACE_DETACH:
 	case PTRACE_SYSCALL:
+	case PTRACE_OLDSETOPTIONS:
 	case PTRACE_SETOPTIONS:
 		return sys_ptrace(request, pid, addr, data); 
 

--

  parent reply	other threads:[~2007-02-21  1:54 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20070221014413.282048309@mini.kroah.org>
2007-02-21  1:49 ` [patch 00/18] 2.6.18-stable review Greg KH
2007-02-21  1:49   ` [patch 01/18] bcm43xx: Fix for oops on resume Greg KH
2007-02-23  5:25     ` Pavel Machek
2007-02-25  2:30       ` Larry Finger
2007-02-25  8:53         ` Andrew Morton
2007-02-21  1:49   ` [patch 02/18] bcm43xx: Fix for oops on ampdu status Greg KH
2007-02-21  1:49   ` [patch 03/18] Dont leak NT bit into next task Greg KH
2007-02-21 10:00     ` Giuseppe Bilotta
2007-02-21 17:14       ` Jan Engelhardt
2007-02-21 17:20       ` Chuck Ebbert
2007-02-22 15:29       ` Adrian Bunk
2007-02-22 16:56         ` Andi Kleen
2007-02-21  1:50   ` [patch 04/18] SCSI: add missing cdb clearing in scsi_execute() Greg KH
2007-02-21  1:50   ` [patch 05/18] IB/srp: Fix FMR mapping for 32-bit kernels and addresses above 4G Greg KH
2007-02-21  1:50   ` [patch 06/18] i2c: fix broken ds1337 initialization Greg KH
2007-02-21  1:50   ` [patch 07/18] grow_buffers() infinite loop fix (CVE-2006-5757, CVE-2006-6060) Greg KH
2007-02-21  1:50   ` [patch 08/18] hfs_fill_super returns success even if no root inode (CVE-2006-6056) Greg KH
2007-02-21  1:50   ` [patch 09/18] IB/mad: Fix race between cancel and receive completion Greg KH
2007-02-21  1:50   ` [patch 10/18] dvb-core: fix bug in CRC-32 checking on 64-bit systems Greg KH
2007-02-21  1:50   ` [patch 11/18] v4l: cx2341x audio_properties is an u16, not u8 Greg KH
2007-02-21  1:50   ` [patch 12/18] v4l: cx88: Fix leadtek_eeprom tagging Greg KH
2007-02-21  1:51   ` [patch 13/18] V4L: cx88: Fix lockup on suspend Greg KH
2007-02-22  1:14     ` Michael Krufky
2007-02-23 23:50       ` Greg KH
2007-02-21  1:51   ` [patch 14/18] V4L: Fix quickcam communicator driver for big endian architectures Greg KH
2007-02-21  1:51   ` [patch 15/18] V4L: fix ks0127 status flags Greg KH
2007-02-21  1:51   ` [patch 16/18] V4L: tveeprom: autodetect LG TAPC G701D as tuner type 37 Greg KH
2007-02-21  1:51   ` [patch 17/18] V4L: buf_qbuf: fix videobuf_queue->stream corruption and lockup Greg KH
2007-02-21  1:51   ` Greg KH [this message]
2007-02-21 11:55   ` [patch 00/18] 2.6.18-stable review S.Çağlar Onur
2007-02-21 17:34     ` [stable] " Greg KH
2007-02-21 18:30       ` S.Çağlar Onur
2007-02-21 18:45       ` Ismail Dönmez
2007-02-22  5:42       ` Willy Tarreau
2007-02-26  0:00       ` Adrian Bunk
2007-02-26  0:18     ` Adrian Bunk
2007-03-05 13:44       ` S.Çağlar Onur
2007-03-05 19:26         ` Greg KH
2007-03-05 20:13           ` S.Çağlar Onur
2007-02-23 20:21   ` Hugh Dickins
2007-02-23 20:34     ` [stable] " Chris Wright
2007-02-23 21:13       ` Hugh Dickins

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