Hello: This series was applied to bpf/bpf-next.git (master) by Daniel Borkmann <daniel@xxxxxxxxxxxxx>: On Fri, 16 Dec 2022 13:43:18 -0800 you wrote: > This patch rewrites the runtime PROBE_MEM check insns emitted by the BPF > JIT in order to ensure load safety. The changes in the patch fix two > issues with the previous logic and more generally improve size of > emitted code. Paragraphs between this one and "FIX 1" below explain the > purpose of the runtime check and examine the current implementation. > > When a load is marked PROBE_MEM - e.g. due to PTR_UNTRUSTED access - the > address being loaded from is not necessarily valid. The BPF jit sets up > exception handlers for each such load which catch page faults and 0 out > the destination register. > > [...] Here is the summary with links: - [v3,bpf-next,1/2] bpf, x86: Improve PROBE_MEM runtime load check https://git.kernel.org/bpf/bpf-next/c/90156f4bfa21 - [v3,bpf-next,2/2] selftests/bpf: Add verifier test exercising jit PROBE_MEM logic https://git.kernel.org/bpf/bpf-next/c/59fe41b5255f You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html