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

Pull bpf fixes from Alexei Starovoitov:
 "A number of fixes accumulated due to summer vacations

   - Fix out-of-bounds dynptr write in bpf_crypto_crypt() kfunc which
     was misidentified as a security issue (Daniel Borkmann)

   - Update the list of BPF selftests maintainers (Eduard Zingerman)

   - Fix selftests warnings with icecc compiler (Ilya Leoshkevich)

   - Disable XDP/cpumap direct return optimization (Jesper Dangaard
     Brouer)

   - Fix unexpected get_helper_proto() result in unusual configuration
     BPF_SYSCALL=y and BPF_EVENTS=n (Jiri Olsa)

   - Allow fallback to interpreter when JIT support is limited (KaFai
     Wan)

   - Fix rqspinlock and choose trylock fallback for NMI waiters. Pick
     the simplest fix. More involved fix is targeted bpf-next (Kumar
     Kartikeya Dwivedi)

   - Fix cleanup when tcp_bpf_send_verdict() fails to allocate
     psock->cork (Kuniyuki Iwashima)

   - Disallow bpf_timer in PREEMPT_RT for now. Proper solution is being
     discussed for bpf-next. (Leon Hwang)

   - Fix XSK cq descriptor production (Maciej Fijalkowski)

   - Tell memcg to use allow_spinning=false path in bpf_timer_init() to
     avoid lockup in cgroup_file_notify() (Peilin Ye)

   - Fix bpf_strnstr() to handle suffix match cases (Rong Tao)"

* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  selftests/bpf: Skip timer cases when bpf_timer is not supported
  bpf: Reject bpf_timer for PREEMPT_RT
  tcp_bpf: Call sk_msg_free() when tcp_bpf_send_verdict() fails to allocate psock->cork.
  bpf: Tell memcg to use allow_spinning=false path in bpf_timer_init()
  bpf: Allow fall back to interpreter for programs with stack size <= 512
  rqspinlock: Choose trylock fallback for NMI waiters
  xsk: Fix immature cq descriptor production
  bpf: Update the list of BPF selftests maintainers
  selftests/bpf: Add tests for bpf_strnstr
  selftests/bpf: Fix "expression result unused" warnings with icecc
  bpf: Fix bpf_strnstr() to handle suffix match cases better
  selftests/bpf: Extend crypto_sanity selftest with invalid dst buffer
  bpf: Fix out-of-bounds dynptr write in bpf_crypto_crypt
  bpf: Check the helper function is valid in get_helper_proto
  bpf, cpumap: Disable page_pool direct xdp_return need larger scope

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