linux-kernel - Re: [PATCH v2 0/2] ARM: ptrace: Restore syscall skipping and restart while tracing

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Date:   Thu, 10 Aug 2023 22:55:51 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Russell King <linux@...linux.org.uk>
Cc:     Arnd Bergmann <arnd@...nel.org>,
        Lecopzer Chen <lecopzer.chen@...iatek.com>,
        Oleg Nesterov <oleg@...hat.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Wolfram Sang <wsa@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Dan Williams <dan.j.williams@...el.com>,
        "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-hardening@...r.kernel.org
Subject: Re: [PATCH v2 0/2] ARM: ptrace: Restore syscall skipping and restart
 while tracing

On Thu, Aug 10, 2023 at 12:54:17PM -0700, Kees Cook wrote:
> Fix tracing on arm since commit 4e57a4ddf6b0 ("ARM: 9107/1: syscall:
> always store thread_info->abi_syscall"). This was seen with the broken
> seccomp tests "syscall_errno", "syscall_faked", and "syscall_restart".

I'd like to get this fixed in v6.5. Russell, do you have a fixes tree
that you'll be sending Linus's way before the next -rc? I can send it
via my seccomp-fixes tree if that'd be easier.

Thanks!

-Kees

-- 
Kees Cook