On Wed, Oct 27, 2021 at 06:35:44PM -0700, Pawan Gupta wrote: > Disabling unprivileged BPF would help prevent unprivileged users from > creating the conditions required for potential speculative execution > side-channel attacks on affected hardware. A deep dive on such attacks > and mitigation is available here [1]. > > If an architecture selects CONFIG_CPU_SPECTRE, disable unprivileged BPF > by default. An admin can enable this at runtime, if necessary. > > Signed-off-by: Pawan Gupta <pawan.kumar.gupta@xxxxxxxxxxxxxxx> > > [1] https://ebpf.io/summit-2021-slides/eBPF_Summit_2021-Keynote-Daniel_Borkmann-BPF_and_Spectre.pdf This should go above the signed-off-by line, in the changelog text, not below it, otherwise our tools get confused when trying to apply it. thanks, greg k-h
