Hello:
This patch was applied to bpf/bpf.git (master)
by Andrii Nakryiko <andrii@xxxxxxxxxx>:
On Thu, 30 Nov 2023 18:46:40 -0800 you wrote:
> Bpf cpu=v4 support is introduced in [1] and Commit 4cd58e9af8b9
> ("bpf: Support new 32bit offset jmp instruction") added support for new
> 32bit offset jmp instruction. Unfortunately, in function
> bpf_adj_delta_to_off(), for new branch insn with 32bit offset, the offset
> (plus/minor a small delta) compares to 16-bit offset bound
> [S16_MIN, S16_MAX], which caused the following verification failure:
> $ ./test_progs-cpuv4 -t verif_scale_pyperf180
> ...
> insn 10 cannot be patched due to 16-bit range
> ...
> libbpf: failed to load object 'pyperf180.bpf.o'
> scale_test:FAIL:expect_success unexpected error: -12 (errno 12)
> #405 verif_scale_pyperf180:FAIL
>
> [...]
Here is the summary with links:
- [bpf,v3] bpf: Fix a verifier bug due to incorrect branch offset comparison with cpu=v4
https://git.kernel.org/bpf/bpf/c/dfce9cb31405
You are awesome, thank you!
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