* Stable release 4.4.286 broken for ARM64 with CONFIG_CC_STACKPROTECTOR=y
@ 2021-10-06 21:20 Hans-Christian Egtvedt (hegtvedt)
2021-10-07 6:20 ` Greg Kroah-Hartman
0 siblings, 1 reply; 2+ messages in thread
From: Hans-Christian Egtvedt (hegtvedt) @ 2021-10-06 21:20 UTC (permalink / raw)
To: stable, Greg Kroah-Hartman
Hello,
latest stable release 4.4.286 does not build for me on ARM64 with
CONFIG_CC_STACKPROTECTOR=y.
The offending commit
commit 69e450b170995e8a4e3eb94fb14c822553124870
Author: Dan Li <ashimida@linux.alibaba.com>
Date: Tue Sep 14 11:44:02 2021
arm64: Mark __stack_chk_guard as __ro_after_init
The 4.4.y kernel does not have the ro_after_init section defined at all,
stable kernel 4.9.y is the first to have it.
I do not have an overview of this feature, but it appears to have
started with commit
commit c74ba8b3480da6ddaea17df2263ec09b869ac496
Author: Kees Cook <keescook@chromium.org>
Date: Wed Feb 17 23:41:15 2016
arch: Introduce post-init read-only memory
--
Best regards, Hans-Christian Noren Egtvedt.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Stable release 4.4.286 broken for ARM64 with CONFIG_CC_STACKPROTECTOR=y
2021-10-06 21:20 Stable release 4.4.286 broken for ARM64 with CONFIG_CC_STACKPROTECTOR=y Hans-Christian Egtvedt (hegtvedt)
@ 2021-10-07 6:20 ` Greg Kroah-Hartman
0 siblings, 0 replies; 2+ messages in thread
From: Greg Kroah-Hartman @ 2021-10-07 6:20 UTC (permalink / raw)
To: Hans-Christian Egtvedt (hegtvedt); +Cc: stable
On Wed, Oct 06, 2021 at 09:20:42PM +0000, Hans-Christian Egtvedt (hegtvedt) wrote:
> Hello,
>
> latest stable release 4.4.286 does not build for me on ARM64 with
> CONFIG_CC_STACKPROTECTOR=y.
>
> The offending commit
>
> commit 69e450b170995e8a4e3eb94fb14c822553124870
> Author: Dan Li <ashimida@linux.alibaba.com>
> Date: Tue Sep 14 11:44:02 2021
>
> arm64: Mark __stack_chk_guard as __ro_after_init
>
> The 4.4.y kernel does not have the ro_after_init section defined at all,
> stable kernel 4.9.y is the first to have it.
>
> I do not have an overview of this feature, but it appears to have
> started with commit
>
> commit c74ba8b3480da6ddaea17df2263ec09b869ac496
> Author: Kees Cook <keescook@chromium.org>
> Date: Wed Feb 17 23:41:15 2016
>
> arch: Introduce post-init read-only memory
>
> --
> Best regards, Hans-Christian Noren Egtvedt.
Thank you for letting me know. I'll go revert this and do a new release
with this fixed.
greg k-h
^ permalink raw reply [flat|nested] 2+ messages in thread
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2021-10-06 21:20 Stable release 4.4.286 broken for ARM64 with CONFIG_CC_STACKPROTECTOR=y Hans-Christian Egtvedt (hegtvedt)
2021-10-07 6:20 ` Greg Kroah-Hartman
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