[PATCH bpf-next 00/13] Fix sanitizer-reported libbpf and selftest issues

[Andrii Nakryiko <andrii@kernel.org>]

After doing another run with ASAN, LSAN, and UBSAN, they turned up a bunch of
new issues not noticed before. Fix all of them in preparation for sanitized
test_progs runs in BPF CI in the near future.

Andrii Nakryiko (13):
  tools/resolve_btf_ids: close ELF file on error
  libbpf: fix potential misaligned memory access in btf_ext__new()
  libbpf: prevent UBSan from complaining about integer overflow
  libbpf: don't call libc APIs with NULL pointers
  libbpf: fix glob_syms memory leak in bpf_linker
  libbpf: fix using invalidated memory in bpf_linker
  selftests/bpf: fix UBSan complaint about signed __int128 overflow
  selftests/bpf: fix possible NULL passed to memcpy() with zero size
  selftests/bpf: prevent misaligned memory access in get_stack_raw_tp
    test
  selftests/bpf: fix misaligned memory access in queue_stack_map test
  selftests/bpf: prevent out-of-bounds stack access in test_bpffs
  selftests/bpf: fix misaligned memory accesses in xdp_bonding test
  selftests/bpf: fix misaligned accesses in xdp and xdp_bpf2bpf tests

 tools/bpf/resolve_btfids/main.c               |  5 +--
 tools/lib/bpf/btf.c                           | 11 +++---
 tools/lib/bpf/btf.h                           |  2 +-
 tools/lib/bpf/libbpf.c                        | 10 ++++--
 tools/lib/bpf/linker.c                        |  6 +++-
 .../selftests/bpf/prog_tests/btf_dump.c       |  2 +-
 .../selftests/bpf/prog_tests/core_reloc.c     |  3 +-
 .../bpf/prog_tests/get_stack_raw_tp.c         | 14 +++++---
 .../bpf/prog_tests/queue_stack_map.c          | 12 ++++---
 .../selftests/bpf/prog_tests/test_bpffs.c     |  4 ++-
 tools/testing/selftests/bpf/prog_tests/xdp.c  | 11 +++---
 .../selftests/bpf/prog_tests/xdp_bonding.c    | 36 ++++++++++---------
 .../selftests/bpf/prog_tests/xdp_bpf2bpf.c    |  6 ++--
 13 files changed, 74 insertions(+), 48 deletions(-)

-- 
2.30.2