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

Pull bpf fixes from Alexei Starovoitov:

 - Fix u32/s32 bounds when ranges cross min/max boundary (Eduard
   Zingerman)

 - Fix precision backtracking with linked registers (Eduard Zingerman)

 - Fix linker flags detection for resolve_btfids (Ihor Solodrai)

 - Fix race in update_ftrace_direct_add/del (Jiri Olsa)

 - Fix UAF in bpf_trampoline_link_cgroup_shim (Lang Xu)

* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
  resolve_btfids: Fix linker flags detection
  selftests/bpf: add reproducer for spurious precision propagation through calls
  bpf: collect only live registers in linked regs
  Revert "selftests/bpf: Update reg_bound range refinement logic"
  selftests/bpf: test refining u32/s32 bounds when ranges cross min/max boundary
  bpf: Fix u32/s32 bounds when ranges cross min/max boundary
  bpf: Fix a UAF issue in bpf_trampoline_link_cgroup_shim
  ftrace: Add missing ftrace_lock to update_ftrace_direct_add/del

diff --cc kernel/bpf/verifier.c
Simple merge

diff --cc kernel/trace/ftrace.c
Simple merge