Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

Pull bpf fixes from Alexei Starovoitov:

 - Fix register equivalence for pointers to packet (Alexei Starovoitov)

 - Fix incorrect pruning due to atomic fetch precision tracking (Daniel
   Borkmann)

 - Fix grace period wait for bpf_link-ed tracepoints (Kumar Kartikeya
   Dwivedi)

 - Fix use-after-free of sockmap's sk->sk_socket (Kuniyuki Iwashima)

 - Reject direct access to nullable PTR_TO_BUF pointers (Qi Tang)

 - Reject sleepable kprobe_multi programs at attach time (Varun R
   Mallya)

* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  selftests/bpf: Add more precision tracking tests for atomics
  bpf: Fix incorrect pruning due to atomic fetch precision tracking
  bpf: Reject sleepable kprobe_multi programs at attach time
  bpf: reject direct access to nullable PTR_TO_BUF pointers
  bpf: sockmap: Fix use-after-free of sk->sk_socket in sk_psock_verdict_data_ready().
  bpf: Fix grace period wait for tracepoint bpf_link
  bpf: Fix regsafe() for pointers to packet