Re: [PATCH bpf] bpf: Temporarily disable atomic operations in BPF arena

From: patchwork-bot+netdevbpf
Date: Thu Mar 14 2024 - 15:10:43 EST


Hello:

This patch was applied to bpf/bpf.git (master)
by Alexei Starovoitov <ast@xxxxxxxxxx>:

On Thu, 14 Mar 2024 17:49:31 +0000 you wrote:
> Currently, the x86 JIT handling PROBE_MEM32 tagged accesses is not
> equipped to handle atomic accesses into PTR_TO_ARENA, as no PROBE_MEM32
> tagging is performed and no handling is enabled for them.
>
> This will lead to unsafety as the offset into arena will dereferenced
> directly without turning it into a base + offset access into the arena
> region.
>
> [...]

Here is the summary with links:
- [bpf] bpf: Temporarily disable atomic operations in BPF arena
https://git.kernel.org/bpf/bpf/c/44d79142ede8

You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html