The set fixes cb_access and xdp_adjust_head bits in struct bpf_prog, that are used for requirement checks on the program rather than f.e. heuristics. Thus, for tail calls, we cannot make any assumptions and are forced to set them.
Thanks! Daniel Borkmann (2): bpf: fix cb access in socket filter programs on tail calls bpf: fix checking xdp_adjust_head on tail calls kernel/bpf/syscall.c | 8 ++++++++ 1 file changed, 8 insertions(+) -- 1.9.3
