Re: [PATCH bpf-next 1/2] bpf: Fix verifier log for async callback return values

From: patchwork-bot+netdevbpf
Date: Mon Oct 09 2023 - 17:21:39 EST


Hello:

This series was applied to bpf/bpf.git (master)
by Daniel Borkmann <daniel@xxxxxxxxxxxxx>:

On Mon, 9 Oct 2023 11:14:13 -0500 you wrote:
> The verifier, as part of check_return_code(), verifies that async
> callbacks such as from e.g. timers, will return 0. It does this by
> correctly checking that R0->var_off is in tnum_const(0), which
> effectively checks that it's in a range of 0. If this condition fails,
> however, it prints an error message which says that the value should
> have been in (0x0; 0x1). This results in possibly confusing output such
> as the following in which an async callback returns 1:
>
> [...]

Here is the summary with links:
- [bpf-next,1/2] bpf: Fix verifier log for async callback return values
https://git.kernel.org/bpf/bpf/c/829955981c55
- [bpf-next,2/2] bpf/selftests: Add testcase for async callback return value failure
https://git.kernel.org/bpf/bpf/c/57ddeb86b311

You are awesome, thank you!
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