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From: Oleg Nesterov <oleg@redhat.com>
To: Kusaram Devineni <kusaram@devineni.in>
Cc: Kees Cook <kees@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Andy Lutomirski <luto@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Thomas Gleixner <tglx@kernel.org>, Will Drewry <wad@chromium.org>,
	Max Ver <dudududumaxver@gmail.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH] ptrace: don't report syscall-exit if the tracee was killed by seccomp
Date: Sun, 5 Apr 2026 17:57:35 +0200	[thread overview]
Message-ID: <adKGb5vkyggMK-_l@redhat.com> (raw)
In-Reply-To: <adEhVv1-_oTG9NBa@redhat.com>

On 04/04, Oleg Nesterov wrote:
>
> On 04/03, Kusaram Devineni wrote:
> >
> OK, this is another (although related) issue, lets discuss it separately.

Yes...

> > For that specific path, one approach that seems to work is making signalfd
> > exclude
> > SA_IMMUTABLE signals from the mask it passes to
>
> Perhaps... But this is nasty.

OK, lets do it. I'll send the patch in a minute. It was already tested by syzbot.
Sorry, forgot to CC you, see https://lore.kernel.org/all/adJvw9gEC9D1Gxtq@redhat.com/

I don't see a better fix for now. Hopefully we can cleanup this later.
I think force_exit_sig / force_sig_seccomp should make fatal_signal_pending()
true, but we need a simple fix...

Oleg.


  reply	other threads:[~2026-04-05 15:57 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-22 13:44 [RFC PATCH] ptrace: don't report syscall-exit if the tracee was killed by seccomp Oleg Nesterov
2026-03-22 14:47 ` Kees Cook
2026-03-22 15:14   ` Oleg Nesterov
2026-03-23 12:09     ` Oleg Nesterov
2026-04-03 15:26       ` Kusaram Devineni
2026-04-03 15:48         ` Oleg Nesterov
2026-04-03 17:16           ` Kusaram Devineni
2026-04-04 14:33             ` Oleg Nesterov
2026-04-05 15:57               ` Oleg Nesterov [this message]
2026-04-06 10:43                 ` Kusaram Devineni
2026-03-22 16:36 ` Andrew Morton
2026-03-22 17:32   ` Oleg Nesterov

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