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@xxxxxxxxxxxxxxx>.
> >
> > thanks,
> >
> > greg k-h
> >
> > ------------------ original commit in Linus's tree ------------------
> >
> > From 519ea6f1c82fcdc9842908155ae379de47818778 Mon Sep 17 00:00:00 2001
> > From: Vincenzo Frascino <vincenzo.frascino@xxxxxxx>
> > 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@xxxxxxxxxxxxxxx> # 5.4.x
> > Cc: Will Deacon <will@xxxxxxxxxx>
> > Suggested-by: Catalin Marinas <catalin.marinas@xxxxxxx>
> > Reviewed-by: Catalin Marinas <catalin.marinas@xxxxxxx>
> > Acked-by: Mark Rutland <mark.rutland@xxxxxxx>
> > Signed-off-by: Vincenzo Frascino <vincenzo.frascino@xxxxxxx>
> > Link: https://lore.kernel.org/r/20210126134056.45747-1-vincenzo.frascino@xxxxxxx
> > Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx>
>
> 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
