From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 39F3D4A7C95 for ; Mon, 21 Sep 2026 14:15:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790000145; cv=none; b=u5rNsjdty43N15MojjT8BOo0EXsl5BJMrlX+7Qy1/xw5ZJ85rEQXLv5Q+JmfwDDhn9OSo71GM8G8qxq4TOLF8yj+5WJqguir2K0mZgVBfOoU/ZT4Tyym+r6eCGh1gAn51PJ+W3TmD+wMIAsSfx2DKccUY3e8G/23tX3Y3pRp9E8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790000145; c=relaxed/simple; bh=He3JUgJDhPmHquTyYpRnLK1Iq8NSorYwIL+s1QGdGOs=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=BjJmy96PwQFexm7QC/kEqwH9pn7I+ZhcNIm8Oe/h00Gbho0sQHw/9QIXuqd0bnUnyzl6bj5vzf6joKbus19BG5TLcZxA2QjCiKYTqcUk3QMe7ApmveyWdCpRDDCbka42pTI64N3vHeD3dzZp6M9h6yQJwGfhxqlWIr5uwEBA89Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=I0bW4cWv; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="I0bW4cWv" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1790000141; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=xCfJQWWrymkpBCCuzcDQp38cBUvHqaHF57c7ldLBjfY=; b=I0bW4cWvc8yGLnji3k2dV/2Z2/mCQgfoOeQiozODs5w396y5GpRGGk8R0dd7gepZzdU9Kp kHkMzvOje4lfjkY8ccKkGotmAXi6KWn/tpK/GUgvdOwpHNH1cRMRZKZ7Zxn6XrrRYcayEh TcmNAGuqQc2OWWI3w3mpG62vcKz3pgU= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-526-nnOlowmtPSWcbtsMAlShDA-1; Mon, 21 Sep 2026 10:15:36 -0400 X-MC-Unique: nnOlowmtPSWcbtsMAlShDA-1 X-Mimecast-MFC-AGG-ID: nnOlowmtPSWcbtsMAlShDA_1790000133 Received: from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 8C60D180061E; Mon, 21 Sep 2026 14:15:33 +0000 (UTC) Received: from fedora (headnet03.pony-001.prod.iad2.dc.redhat.com [10.2.32.114]) by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with SMTP id 1FB2A180034F; Mon, 21 Sep 2026 14:15:29 +0000 (UTC) Received: by fedora (nbSMTP-1.00) for uid 1000 oleg@redhat.com; Mon, 21 Sep 2026 16:15:33 +0200 (CEST) Date: Mon, 21 Sep 2026 16:15:28 +0200 From: Oleg Nesterov To: Christian Brauner Cc: Chris Mason , linux-fsdevel@vger.kernel.org, Jens Axboe , Alexander Viro , Jan Kara , NeilBrown , Ingo Molnar , Peter Zijlstra , linux-mm@kvack.org, io-uring@vger.kernel.org Subject: Re: [PATCH v3 13/17] fork: move the coredump and exec checks into create_io_thread() Message-ID: References: <20260921-work-coredump-fixes-v3-0-8e4adb1619e6@kernel.org> <20260921-work-coredump-fixes-v3-13-8e4adb1619e6@kernel.org> Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260921-work-coredump-fixes-v3-13-8e4adb1619e6@kernel.org> X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 On 09/21, Christian Brauner wrote: > > --- a/kernel/fork.c > +++ b/kernel/fork.c > @@ -2706,6 +2706,10 @@ struct task_struct *create_io_thread(int (*fn)(void *), void *arg, int node) > .user_worker = 1, > }; > > + /* A creator past its fatal signal gets no thread. */ > + if (current->flags & PF_SIGNALED) > + return ERR_PTR(-EINTR); Acked-by: Oleg Nesterov