Re: [PATCH v2 bpf-next 0/4] BPF array map fixes and improvements

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On 7/14/22 10:31 PM, Andrii Nakryiko wrote:
Fix 32-bit overflow in value pointer calculations in BPF array map. And then
raise obsolete limit on array map value size. Add selftest making sure this is
working as intended.

v1->v2:
   - fix broken patch #1 (no mask_index use in helper, as stated in commit
     message; and add missing semicolon).

Andrii Nakryiko (4):
   bpf: fix potential 32-bit overflow when accessing ARRAY map element
   bpf: make uniform use of array->elem_size everywhere in arraymap.c
   bpf: remove obsolete KMALLOC_MAX_SIZE restriction on array map value
     size
   selftests/bpf: validate .bss section bigger than 8MB is possible now

  kernel/bpf/arraymap.c                         | 40 ++++++++++---------
  .../selftests/bpf/prog_tests/skeleton.c       |  2 +
  .../selftests/bpf/progs/test_skeleton.c       |  4 ++
  3 files changed, 28 insertions(+), 18 deletions(-)

Ack for the whole series.

Acked-by: Yonghong Song <yhs@xxxxxx>



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