netdev - Re: [PATCH v2 bpf 0/2] bpf: fix OOB accesses in map_delete

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Message-ID: <Z0pfsWqRoxaTTC2t@pop-os.localdomain>
Date: Fri, 29 Nov 2024 16:43:29 -0800
From: Cong Wang <xiyou.wangcong@...il.com>
To: Maciej Fijalkowski <maciej.fijalkowski@...el.com>
Cc: bpf@...r.kernel.org, ast@...nel.org, daniel@...earbox.net,
	andrii@...nel.org, netdev@...r.kernel.org,
	magnus.karlsson@...el.com, bjorn@...nel.org, jordyzomer@...gle.com,
	security@...nel.org
Subject: Re: [PATCH v2 bpf 0/2] bpf: fix OOB accesses in map_delete_elem
 callbacks

On Fri, Nov 22, 2024 at 01:10:28PM +0100, Maciej Fijalkowski wrote:
> v1->v2:
> - CC stable and collect tags from Toke & John
> 
> Hi,
> 
> Jordy reported that for big enough XSKMAPs and DEVMAPs, when deleting
> elements, OOB writes occur.
> 
> Reproducer below:
> 

Please consider adding it to tools/testing/selftests/bpf/, since it is
pretty small and self-contained. (A follow up patch is definitely
welcome.)

Thanks.