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From: Madhuker Mythri <madhuker.mythri@oracle.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	"ferruh.yigit@amd.com" <ferruh.yigit@amd.com>
Subject: RE: [External] : Re: [PATCH] net/tap: Modified TAP BPF program as per the Kernel-version upgrade requirements.
Date: Wed, 17 Jan 2024 16:19:14 +0000	[thread overview]
Message-ID: <SJ0PR10MB4798F3E193EF489BA34B288197722@SJ0PR10MB4798.namprd10.prod.outlook.com> (raw)
In-Reply-To: <20240116192558.03b413d6@hermes.local>

No, I did not run with Cilium.

Thanks,
Madhuker.

-----Original Message-----
From: Stephen Hemminger <stephen@networkplumber.org> 
Sent: 17 January 2024 08:56
To: Madhuker Mythri <madhuker.mythri@oracle.com>
Cc: dev@dpdk.org; ferruh.yigit@amd.com
Subject: Re: [External] : Re: [PATCH] net/tap: Modified TAP BPF program as per the Kernel-version upgrade requirements.

On Tue, 16 Jan 2024 05:43:00 +0000
Madhuker Mythri <madhuker.mythri@oracle.com> wrote:

> Hi Stephen,
> 
> Yes, I found that the Kernel we use has more Verification added for safe execution:
> https://blogs.oracle.com/linux/post/bpf-in-depth-the-bpf-bytecode-and-the-bpf-verifier
> 
> Here they mentioned about SKB pointer direct access, math on pointer and array with undefined access is denied on BPF code.

Have you tried running Cilium? I would expect those custom changes would break that

  reply	other threads:[~2024-01-17 16:19 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-12 13:48 madhuker.mythri
2024-01-12 16:40 ` Stephen Hemminger
2024-01-12 16:41 ` Stephen Hemminger
2024-01-13 17:50   ` [External] : " Madhuker Mythri
2024-01-13 18:05     ` Stephen Hemminger
2024-01-16 16:43     ` Stephen Hemminger
2024-01-12 16:42 ` Stephen Hemminger
2024-01-13 17:52   ` [External] : " Madhuker Mythri
2024-01-13 18:06     ` Stephen Hemminger
2024-01-16  5:43       ` Madhuker Mythri
2024-01-16 16:40         ` Stephen Hemminger
2024-01-17  3:25         ` Stephen Hemminger
2024-01-17 16:19           ` Madhuker Mythri [this message]
2024-01-12 16:43 ` Stephen Hemminger
2024-01-12 16:46 ` Stephen Hemminger
2024-01-13 17:55   ` [External] : " Madhuker Mythri
2024-01-12 17:53 ` [RFC v3] tap: rework the BPF header parsing Stephen Hemminger
2024-02-07 18:55 ` [PATCH] net/tap: Modified TAP BPF program as per the Kernel-version upgrade requirements Stephen Hemminger

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