From: Greg KH <gregkh@linuxfoundation.org>
To: Catalin Marinas <catalin.marinas@arm.com>
Cc: vincenzo.frascino@arm.com, mark.rutland@arm.com,
stable@vger.kernel.org, will@kernel.org
Subject: Re: FAILED: patch "[PATCH] arm64: Fix kernel address detection of __is_lm_address()" failed to apply to 5.4-stable tree
Date: Thu, 4 Feb 2021 16:08:02 +0100 [thread overview]
Message-ID: <YBwN0rNXAjg2+ZWl@kroah.com> (raw)
In-Reply-To: <20210203131501.GB10424@gaia>
On Wed, Feb 03, 2021 at 01:15:03PM +0000, Catalin Marinas wrote:
> Hi Greg,
>
> On Sun, Jan 31, 2021 at 03:40:58PM +0100, Greg Kroah-Hartman wrote:
> > The patch below does not apply to the 5.4-stable tree.
> > If someone wants it applied there, or to any other stable or longterm
> > tree, then please email the backport, including the original git commit
> > id to <stable@vger.kernel.org>.
> >
> > thanks,
> >
> > greg k-h
> >
> > ------------------ original commit in Linus's tree ------------------
> >
> > From 519ea6f1c82fcdc9842908155ae379de47818778 Mon Sep 17 00:00:00 2001
> > From: Vincenzo Frascino <vincenzo.frascino@arm.com>
> > Date: Tue, 26 Jan 2021 13:40:56 +0000
> > Subject: [PATCH] arm64: Fix kernel address detection of __is_lm_address()
> >
> > Currently, the __is_lm_address() check just masks out the top 12 bits
> > of the address, but if they are 0, it still yields a true result.
> > This has as a side effect that virt_addr_valid() returns true even for
> > invalid virtual addresses (e.g. 0x0).
> >
> > Fix the detection checking that it's actually a kernel address starting
> > at PAGE_OFFSET.
> >
> > Fixes: 68dd8ef32162 ("arm64: memory: Fix virt_addr_valid() using __is_lm_address()")
> > Cc: <stable@vger.kernel.org> # 5.4.x
> > Cc: Will Deacon <will@kernel.org>
> > Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
> > Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
> > Acked-by: Mark Rutland <mark.rutland@arm.com>
> > Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
> > Link: https://lore.kernel.org/r/20210126134056.45747-1-vincenzo.frascino@arm.com
> > Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
>
> I sent you the 5.4 and 5.10 backports of this patch. There is another
> fix in this area which I'll send to Linus tonight. It should apply
> cleanly on 5.4 and 5.10.
Both now applied. What is the git id of the other fix in Linus's tree?
thanks,
greg k-h
next prev parent reply other threads:[~2021-02-04 16:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1612104058247187@kroah.com>
2021-02-03 13:15 ` FAILED: patch "[PATCH] arm64: Fix kernel address detection of __is_lm_address()" failed to apply to 5.4-stable tree Catalin Marinas
2021-02-04 15:08 ` Greg KH [this message]
2021-02-04 15:12 ` Catalin Marinas
2021-02-04 15:27 ` Greg KH
2021-02-04 15:28 ` Catalin Marinas
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=YBwN0rNXAjg2+ZWl@kroah.com \
--to=gregkh@linuxfoundation.org \
--cc=catalin.marinas@arm.com \
--cc=mark.rutland@arm.com \
--cc=stable@vger.kernel.org \
--cc=vincenzo.frascino@arm.com \
--cc=will@kernel.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox