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

Pull bpf fixes from Daniel Borkmann:

 - Fix BPF verifier to force a checkpoint when the program's jump
   history becomes too long (Eduard Zingerman)

 - Add several fixes to the BPF bits iterator addressing issues like
   memory leaks and overflow problems (Hou Tao)

 - Fix an out-of-bounds write in trie_get_next_key (Byeonguk Jeong)

 - Fix BPF test infra's LIVE_FRAME frame update after a page has been
   recycled (Toke Høiland-Jørgensen)

 - Fix BPF verifier and undo the 40-bytes extra stack space for
   bpf_fastcall patterns due to various bugs (Eduard Zingerman)

 - Fix a BPF sockmap race condition which could trigger a NULL pointer
   dereference in sock_map_link_update_prog (Cong Wang)

 - Fix tcp_bpf_recvmsg_parser to retrieve seq_copied from tcp_sk under
   the socket lock (Jiayuan Chen)

* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  bpf, test_run: Fix LIVE_FRAME frame update after a page has been recycled
  selftests/bpf: Add three test cases for bits_iter
  bpf: Use __u64 to save the bits in bits iterator
  bpf: Check the validity of nr_words in bpf_iter_bits_new()
  bpf: Add bpf_mem_alloc_check_size() helper
  bpf: Free dynamically allocated bits in bpf_iter_bits_destroy()
  bpf: disallow 40-bytes extra stack for bpf_fastcall patterns
  selftests/bpf: Add test for trie_get_next_key()
  bpf: Fix out-of-bounds write in trie_get_next_key()
  selftests/bpf: Test with a very short loop
  bpf: Force checkpoint when jmp history is too long
  bpf: fix filed access without lock
  sock_map: fix a NULL pointer dereference in sock_map_link_update_prog()

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