All of lore.kernel.org
 help / color / mirror / Atom feed
From: Dave Airlie <airlied@gmail.com>
To: Zheng Hacker <hackerzheng666@gmail.com>
Cc: Zheng Wang <zyytlz.wz@163.com>,
	gregkh@linuxfoundation.org, alex000young@gmail.com,
	security@kernel.org, airlied@linux.ie,
	intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org, 1002992920@qq.com,
	intel-gvt-dev@lists.freedesktop.org, zhi.a.wang@intel.com,
	Zhenyu Wang <zhenyuw@linux.intel.com>,
	Jani Nikula <jani.nikula@linux.intel.com>
Subject: Re: [PATCH v3] drm/i915/gvt: fix double free bug in split_2MB_gtt_entry
Date: Thu, 27 Oct 2022 15:12:31 +1000	[thread overview]
Message-ID: <CAPM=9twhAL+c8mOLmidY_tEhEKwCh-CTjfs5yryOk8oGjMxuug@mail.gmail.com> (raw)
In-Reply-To: <CAJedcCwxioxr+4TBTdrEjAZh97J3oroSHSgax+bxSNRXCBvkRg@mail.gmail.com>

On Thu, 27 Oct 2022 at 13:26, Zheng Hacker <hackerzheng666@gmail.com> wrote:
>
> Dave Airlie <airlied@gmail.com> 于2022年10月27日周四 08:01写道:
> >
> > On Fri, 7 Oct 2022 at 11:38, Zheng Wang <zyytlz.wz@163.com> wrote:
> > >
> > > If intel_gvt_dma_map_guest_page failed, it will call
> > > ppgtt_invalidate_spt, which will finally free the spt.
> > > But the caller does not notice that, it will free spt again in error path.
> > >
> > > Fix this by spliting invalidate and free in ppgtt_invalidate_spt.
> > > Only free spt when in good case.
> > >
> > > Reported-by: Zheng Wang <hackerzheng666@gmail.com>
> > > Signed-off-by: Zheng Wang <zyytlz.wz@163.com>
> >
> > Has this landed in a tree yet, since it's a possible CVE, might be
> > good to merge it somewhere.
> >
> > Dave.
> >
>
> Hi Dave,
>
> This patched hasn't been merged yet. Could you please help with this?

I'll add some more people who can probably look at it.

Dave.

WARNING: multiple messages have this Message-ID (diff)
From: Dave Airlie <airlied@gmail.com>
To: Zheng Hacker <hackerzheng666@gmail.com>
Cc: alex000young@gmail.com, security@kernel.org, airlied@linux.ie,
	gregkh@linuxfoundation.org, intel-gfx@lists.freedesktop.org,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	1002992920@qq.com, Zheng Wang <zyytlz.wz@163.com>,
	intel-gvt-dev@lists.freedesktop.org, zhi.a.wang@intel.com
Subject: Re: [PATCH v3] drm/i915/gvt: fix double free bug in split_2MB_gtt_entry
Date: Thu, 27 Oct 2022 15:12:31 +1000	[thread overview]
Message-ID: <CAPM=9twhAL+c8mOLmidY_tEhEKwCh-CTjfs5yryOk8oGjMxuug@mail.gmail.com> (raw)
In-Reply-To: <CAJedcCwxioxr+4TBTdrEjAZh97J3oroSHSgax+bxSNRXCBvkRg@mail.gmail.com>

On Thu, 27 Oct 2022 at 13:26, Zheng Hacker <hackerzheng666@gmail.com> wrote:
>
> Dave Airlie <airlied@gmail.com> 于2022年10月27日周四 08:01写道:
> >
> > On Fri, 7 Oct 2022 at 11:38, Zheng Wang <zyytlz.wz@163.com> wrote:
> > >
> > > If intel_gvt_dma_map_guest_page failed, it will call
> > > ppgtt_invalidate_spt, which will finally free the spt.
> > > But the caller does not notice that, it will free spt again in error path.
> > >
> > > Fix this by spliting invalidate and free in ppgtt_invalidate_spt.
> > > Only free spt when in good case.
> > >
> > > Reported-by: Zheng Wang <hackerzheng666@gmail.com>
> > > Signed-off-by: Zheng Wang <zyytlz.wz@163.com>
> >
> > Has this landed in a tree yet, since it's a possible CVE, might be
> > good to merge it somewhere.
> >
> > Dave.
> >
>
> Hi Dave,
>
> This patched hasn't been merged yet. Could you please help with this?

I'll add some more people who can probably look at it.

Dave.

WARNING: multiple messages have this Message-ID (diff)
From: Dave Airlie <airlied@gmail.com>
To: Zheng Hacker <hackerzheng666@gmail.com>
Cc: alex000young@gmail.com, security@kernel.org, airlied@linux.ie,
	gregkh@linuxfoundation.org, intel-gfx@lists.freedesktop.org,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	1002992920@qq.com, Zheng Wang <zyytlz.wz@163.com>,
	intel-gvt-dev@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH v3] drm/i915/gvt: fix double free bug in split_2MB_gtt_entry
Date: Thu, 27 Oct 2022 15:12:31 +1000	[thread overview]
Message-ID: <CAPM=9twhAL+c8mOLmidY_tEhEKwCh-CTjfs5yryOk8oGjMxuug@mail.gmail.com> (raw)
In-Reply-To: <CAJedcCwxioxr+4TBTdrEjAZh97J3oroSHSgax+bxSNRXCBvkRg@mail.gmail.com>

On Thu, 27 Oct 2022 at 13:26, Zheng Hacker <hackerzheng666@gmail.com> wrote:
>
> Dave Airlie <airlied@gmail.com> 于2022年10月27日周四 08:01写道:
> >
> > On Fri, 7 Oct 2022 at 11:38, Zheng Wang <zyytlz.wz@163.com> wrote:
> > >
> > > If intel_gvt_dma_map_guest_page failed, it will call
> > > ppgtt_invalidate_spt, which will finally free the spt.
> > > But the caller does not notice that, it will free spt again in error path.
> > >
> > > Fix this by spliting invalidate and free in ppgtt_invalidate_spt.
> > > Only free spt when in good case.
> > >
> > > Reported-by: Zheng Wang <hackerzheng666@gmail.com>
> > > Signed-off-by: Zheng Wang <zyytlz.wz@163.com>
> >
> > Has this landed in a tree yet, since it's a possible CVE, might be
> > good to merge it somewhere.
> >
> > Dave.
> >
>
> Hi Dave,
>
> This patched hasn't been merged yet. Could you please help with this?

I'll add some more people who can probably look at it.

Dave.

  reply	other threads:[~2022-10-27  5:12 UTC|newest]

Thread overview: 93+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-18 19:24 [PATCH] drm/i915/gvt: fix double-free bug in split_2MB_gtt_entry Zheng Wang
2022-09-18 19:24 ` [Intel-gfx] " Zheng Wang
2022-09-19  9:30 ` Jani Nikula
2022-09-19  9:30   ` [Intel-gfx] " Jani Nikula
2022-09-19  9:55   ` Zheng Hacker
2022-09-19  9:55     ` [Intel-gfx] " Zheng Hacker
2022-09-19  9:55     ` Zheng Hacker
2022-09-21  9:13   ` Zheng Hacker
2022-09-21  9:13     ` [Intel-gfx] " Zheng Hacker
2022-09-21  9:13     ` Zheng Hacker
2022-09-28  3:33     ` [PATCH] drm/i915/gvt: fix double free " Zheng Wang
2022-09-28  3:33       ` [Intel-gfx] " Zheng Wang
2022-09-28  3:33       ` Zheng Wang
2022-10-02 14:18       ` Greg KH
2022-10-02 14:18         ` [Intel-gfx] " Greg KH
2022-10-02 14:18         ` Greg KH
2022-10-03  4:36         ` Zheng Hacker
2022-10-03  4:36           ` [Intel-gfx] " Zheng Hacker
2022-10-03  4:36           ` Zheng Hacker
2022-10-06 16:58       ` [PATCH v2] " Zheng Wang
2022-10-06 16:58         ` [Intel-gfx] " Zheng Wang
2022-10-06 16:58         ` Zheng Wang
2022-10-06 19:23         ` Greg KH
2022-10-06 19:23           ` [Intel-gfx] " Greg KH
2022-10-06 19:23           ` Greg KH
2022-10-07  0:39           ` Zheng Hacker
2022-10-07  0:39             ` [Intel-gfx] " Zheng Hacker
2022-10-07  0:39             ` Zheng Hacker
2022-10-07  1:37           ` [PATCH v3] " Zheng Wang
2022-10-07  1:37             ` [Intel-gfx] " Zheng Wang
2022-10-07  1:37             ` Zheng Wang
2022-10-27  0:01             ` [Intel-gfx] " Dave Airlie
2022-10-27  0:01               ` Dave Airlie
2022-10-27  0:01               ` Dave Airlie
2022-10-27  3:26               ` Zheng Hacker
2022-10-27  3:26                 ` [Intel-gfx] " Zheng Hacker
2022-10-27  3:26                 ` Zheng Hacker
2022-10-27  5:12                 ` Dave Airlie [this message]
2022-10-27  5:12                   ` [Intel-gfx] " Dave Airlie
2022-10-27  5:12                   ` Dave Airlie
2022-10-30 15:10                   ` Zheng Hacker
2022-10-30 15:10                     ` [Intel-gfx] " Zheng Hacker
2022-10-30 15:10                     ` Zheng Hacker
2022-12-15 10:47                   ` Joonas Lahtinen
2022-12-15 10:47                     ` [Intel-gfx] " Joonas Lahtinen
2022-12-15 11:33                     ` Wang, Zhi A
2022-12-15 11:33                       ` [Intel-gfx] " Wang, Zhi A
2022-12-15 13:26                       ` Zheng Hacker
2022-12-15 13:26                         ` [Intel-gfx] " Zheng Hacker
2022-12-15 13:26                         ` Zheng Hacker
2022-12-19  7:57                       ` [Intel-gfx] " Zheng Wang
2022-12-19  7:57                         ` Zheng Wang
2022-12-19  7:57                         ` Zheng Wang
2022-12-19  8:22                         ` Wang, Zhi A
2022-12-19  8:22                           ` Wang, Zhi A
2022-12-19  8:22                           ` Wang, Zhi A
2022-12-19  9:21                           ` Zheng Wang
2022-12-19  9:21                             ` Zheng Wang
2022-12-19  9:21                             ` Zheng Wang
2022-12-19 12:46                           ` [PATCH v4] [PATCH v4] " Zheng Wang
2022-12-19 12:46                             ` [Intel-gfx] " Zheng Wang
2022-12-19 12:46                             ` Zheng Wang
2022-12-19 12:52                           ` [RESEND PATCH " Zheng Wang
2022-12-19 12:52                             ` [Intel-gfx] " Zheng Wang
2022-12-19 12:52                             ` Zheng Wang
2022-12-20  8:22                             ` Zhenyu Wang
2022-12-20  8:22                               ` [Intel-gfx] " Zhenyu Wang
2022-12-20  8:22                               ` Zhenyu Wang
2022-12-20  9:03                               ` Zheng Hacker
2022-12-20  9:03                                 ` [Intel-gfx] " Zheng Hacker
2022-12-20  9:03                                 ` Zheng Hacker
2022-12-20  9:40                           ` [PATCH v5] " Zheng Wang
2022-12-20  9:40                             ` [Intel-gfx] " Zheng Wang
2022-12-20  9:40                             ` Zheng Wang
2022-12-21  2:58                             ` Zhenyu Wang
2022-12-21  2:58                               ` [Intel-gfx] " Zhenyu Wang
2022-12-21  2:58                               ` Zhenyu Wang
2022-12-21  5:01                               ` Zheng Hacker
2022-12-21  5:01                                 ` [Intel-gfx] " Zheng Hacker
2022-12-21  5:01                                 ` Zheng Hacker
2022-12-29 16:56                           ` [PATCH v6] " Zheng Wang
2022-12-29 16:56                             ` [Intel-gfx] " Zheng Wang
2022-12-29 16:56                             ` Zheng Wang
2022-09-19 20:17 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for drm/i915/gvt: fix double-free bug in split_2MB_gtt_entry (rev2) Patchwork
2022-09-29 18:16 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915/gvt: fix double-free bug in split_2MB_gtt_entry (rev3) Patchwork
2022-09-29 18:40 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2022-09-30 18:41 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork
2022-10-10 15:00 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915/gvt: fix double-free bug in split_2MB_gtt_entry (rev5) Patchwork
2022-10-10 15:30 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork
2022-12-22 12:25 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915/gvt: fix double-free bug in split_2MB_gtt_entry (rev8) Patchwork
2022-12-22 12:53 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2022-12-22 18:13 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2022-12-29 17:57 ` [Intel-gfx] ✗ Fi.CI.BAT: failure for drm/i915/gvt: fix double-free bug in split_2MB_gtt_entry (rev9) Patchwork

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CAPM=9twhAL+c8mOLmidY_tEhEKwCh-CTjfs5yryOk8oGjMxuug@mail.gmail.com' \
    --to=airlied@gmail.com \
    --cc=1002992920@qq.com \
    --cc=airlied@linux.ie \
    --cc=alex000young@gmail.com \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=hackerzheng666@gmail.com \
    --cc=intel-gfx@lists.freedesktop.org \
    --cc=intel-gvt-dev@lists.freedesktop.org \
    --cc=jani.nikula@linux.intel.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=security@kernel.org \
    --cc=zhenyuw@linux.intel.com \
    --cc=zhi.a.wang@intel.com \
    --cc=zyytlz.wz@163.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.