2024-06-11 11:30:32

by Wang Zhaolong

[permalink] [raw]
Subject: Re: CVE-2023-52666: ksmbd: fix potential circular locking issue in smb2_set_ea()


>
> The Linux kernel CVE team recommends that you update to the latest
> stable kernel version for this, and many other bugfixes. Individual
> changes are never tested alone, but rather are part of a larger kernel
> release. Cherry-picking individual commits is not recommended or
> supported by the Linux kernel community at all. If however, updating to
> the latest release is impossible, the individual changes to resolve this
> issue can be found at these commits:
> https://git.kernel.org/stable/c/5349fd419e4f685d609c85b781f2b70f0fb14848
> https://git.kernel.org/stable/c/e61fc656ceeaec65f19a92f0ffbeb562b7941e8d
> https://git.kernel.org/stable/c/e9ec6665de8f706b4f4133b87b2bd02a159ec57b
> https://git.kernel.org/stable/c/ecfd93955994ecc2a1308f5ee4bd90c7fca9a8c6
> https://git.kernel.org/stable/c/6fc0a265e1b932e5e97a038f99e29400a93baad0

Hello.

Is this a valid CVE patch?

I noticed that the introduced `get_write` is not being used within the
function, and there are no follow-up patches addressing this.

Best regards,

Wang Zhaolong


2024-06-11 13:29:20

by Namjae Jeon

[permalink] [raw]
Subject: Re: CVE-2023-52666: ksmbd: fix potential circular locking issue in smb2_set_ea()

2024년 6월 11일 (화) 오후 8:30, Wang Zhaolong <[email protected]>님이 작성:
>
>
> >
> > The Linux kernel CVE team recommends that you update to the latest
> > stable kernel version for this, and many other bugfixes. Individual
> > changes are never tested alone, but rather are part of a larger kernel
> > release. Cherry-picking individual commits is not recommended or
> > supported by the Linux kernel community at all. If however, updating to
> > the latest release is impossible, the individual changes to resolve this
> > issue can be found at these commits:
> > https://git.kernel.org/stable/c/5349fd419e4f685d609c85b781f2b70f0fb14848
> > https://git.kernel.org/stable/c/e61fc656ceeaec65f19a92f0ffbeb562b7941e8d
> > https://git.kernel.org/stable/c/e9ec6665de8f706b4f4133b87b2bd02a159ec57b
> > https://git.kernel.org/stable/c/ecfd93955994ecc2a1308f5ee4bd90c7fca9a8c6
> > https://git.kernel.org/stable/c/6fc0a265e1b932e5e97a038f99e29400a93baad0
>
> Hello.
>
> Is this a valid CVE patch?
>
> I noticed that the introduced `get_write` is not being used within the
> function, and there are no follow-up patches addressing this.
My bad, I'll update this.
Thank you for your review.
>
> Best regards,
>
> Wang Zhaolong
>

2024-06-12 08:23:17

by Greg Kroah-Hartman

[permalink] [raw]
Subject: Re: CVE-2023-52666: ksmbd: fix potential circular locking issue in smb2_set_ea()

On Tue, Jun 11, 2024 at 07:30:20PM +0800, Wang Zhaolong wrote:
>
> >
> > The Linux kernel CVE team recommends that you update to the latest
> > stable kernel version for this, and many other bugfixes. Individual
> > changes are never tested alone, but rather are part of a larger kernel
> > release. Cherry-picking individual commits is not recommended or
> > supported by the Linux kernel community at all. If however, updating to
> > the latest release is impossible, the individual changes to resolve this
> > issue can be found at these commits:
> > https://git.kernel.org/stable/c/5349fd419e4f685d609c85b781f2b70f0fb14848
> > https://git.kernel.org/stable/c/e61fc656ceeaec65f19a92f0ffbeb562b7941e8d
> > https://git.kernel.org/stable/c/e9ec6665de8f706b4f4133b87b2bd02a159ec57b
> > https://git.kernel.org/stable/c/ecfd93955994ecc2a1308f5ee4bd90c7fca9a8c6
> > https://git.kernel.org/stable/c/6fc0a265e1b932e5e97a038f99e29400a93baad0
>
> Hello.
>
> Is this a valid CVE patch?
>
> I noticed that the introduced `get_write` is not being used within the
> function, and there are no follow-up patches addressing this.

Yeah, that's odd. No, it's not, I'll go revoke this now, thanks for
noticing!

greg k-h