Re: [PATCH bpf-next v2 1/6] bpf: Reject load-acquire from pointers requiring fault protection

Hello:

This series was applied to bpf/bpf-next.git (master)
by Kumar Kartikeya Dwivedi <[email protected]>:

On Thu,  6 Aug 2026 22:10:42 +0200 you wrote:
> A BPF_LOAD_ACQ is not rewritten to a BPF_PROBE_MEM load by the verifier,
> unlike a regular BPF_LDX, so the JIT emits a plain load with no exception
> table entry and a fault panics the kernel instead of being handled.
> 
> Reject the source pointer types that a BPF_LDX would have had that fault
> protection applied to, i.e. the ones bpf_convert_ctx_accesses() turns
> into BPF_PROBE_MEM: a bare PTR_TO_BTF_ID, PTR_TO_BTF_ID | PTR_UNTRUSTED,
> PTR_TO_BTF_ID | MEM_ALLOC | PTR_UNTRUSTED and PTR_TO_MEM | MEM_RDONLY |
> PTR_UNTRUSTED.
> 
> [...]

Here is the summary with links:
  - [bpf-next,v2,1/6] bpf: Reject load-acquire from pointers requiring fault protection
    https://git.kernel.org/bpf/bpf-next/c/7db0a00445f1
  - [bpf-next,v2,2/6] bpf, riscv: Add and use bpf_atomic_is_load_acq() helper
    https://git.kernel.org/bpf/bpf-next/c/e2577cd62060
  - [bpf-next,v2,3/6] bpf, x86: Fix exception table metadata for arena load-acquire
    https://git.kernel.org/bpf/bpf-next/c/4cf8def58b77
  - [bpf-next,v2,4/6] bpf, arm64: Fix exception table metadata for arena load-acquire
    https://git.kernel.org/bpf/bpf-next/c/af22d273aa1f
  - [bpf-next,v2,5/6] selftests/bpf: Add arena fault test for load-acquire
    https://git.kernel.org/bpf/bpf-next/c/007466d9e497
  - [bpf-next,v2,6/6] selftests/bpf: Add load-acquire test for probe-memory pointer types
    https://git.kernel.org/bpf/bpf-next/c/2b1f9f69ae25

You are awesome, thank you!
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