linux-kernel - Re: next-20250723 arm atags_to_fdt.c undefined reference to `__sanitizer_cov_stack

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <aINJTDD3je4XJ6VO@shell.armlinux.org.uk>
Date: Fri, 25 Jul 2025 10:07:24 +0100
From: "Russell King (Oracle)" <linux@...linux.org.uk>
To: Naresh Kamboju <naresh.kamboju@...aro.org>
Cc: Linux ARM <linux-arm-kernel@...ts.infradead.org>,
	open list <linux-kernel@...r.kernel.org>,
	lkft-triage@...ts.linaro.org,
	Linux Regressions <regressions@...ts.linux.dev>,
	Arnd Bergmann <arnd@...db.de>, kees@...nel.org,
	Dan Carpenter <dan.carpenter@...aro.org>,
	Anders Roxell <anders.roxell@...aro.org>,
	Ben Copeland <benjamin.copeland@...aro.org>
Subject: Re: next-20250723 arm atags_to_fdt.c undefined reference to
 `__sanitizer_cov_stack_depth'

On Fri, Jul 25, 2025 at 01:59:02PM +0530, Naresh Kamboju wrote:
> Regressions noticed while building arm builds with gcc-13 and gcc-8
> toolchains on the Linux next-20250723 to next-20250725 tags.
> 
> First seen on the Linux next-20250723
> Good: next-20250722
> Bad:  next-20250723 and next-20250725
> 
> Regression Analysis:
> - New regression? Yes
> - Reproducibility? Yes
> 
> ## Build regressions
> * arm, build
>   - gcc-13-lkftconfig-hardening
>   - gcc-8-lkftconfig-hardening
> 
> Build regression: next-20250723 arm atags_to_fdt.c undefined reference
> to `__sanitizer_cov_stack_depth'

"cov" suggests "coverty", and that the symbol is not available in the
kernel suggests that coverty isn't supported.

Maybe some kind of new support has been added, but no one has told the
arm developers, and thus bits needed for it aren't present.

Honestly, I'm not going to worry about it. If someone wishes to
contribute 32-bit arm support, then fine, otherwise I'll just ignore
this.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!