Re: [PATCH bpf v2] bpf: Fix potential UAF in bpf_netns_link_update_prog

Hello:

This patch was applied to bpf/bpf-next.git (master)
by Andrii Nakryiko <[email protected]>:

On Tue, 28 Jul 2026 02:32:59 +0000 you wrote:
> From: Pu Lehui <[email protected]>
> 
> In bpf_netns_link_update_prog, the checks for old_prog and prog type
> are currently performed locklessly before acquiring netns_bpf_mutex.
> This creates a race condition that can lead to a UAF issue.
> 
> If two threads concurrently execute BPF_LINK_UPDATE on the same netns
> link, the following execution path can trigger a UAF:
> 
> [...]

Here is the summary with links:
  - [bpf,v2] bpf: Fix potential UAF in bpf_netns_link_update_prog
    https://git.kernel.org/bpf/bpf-next/c/5c5997836381

You are awesome, thank you!
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