[PATCH net 0/2] RDMA/rxe: fix mr_check_range() iova overflow (OOB)

From: Gang Yan <[email protected]>

Hi, Maintainers

I've recently started learning RDMA, using soft-RoCE (rxe) as my study
platform. While pair-programming with an AI assistant during this learning,
it flagged an integer overflow in mr_check_range(). I dug in, stood up a
small reproducer, and -- believing the issue is real and worth fixing --
put together this small series.

Thanks
Gang

Gang Yan (2):
  RDMA/rxe: Fix integer overflow in mr_check_range() leading to OOB
    access
  DO-NOT-MERGE: selftest: add rxe mr_check_range() overflow reproducer

 drivers/infiniband/sw/rxe/rxe_mr.c            |   3 +-
 tools/testing/selftests/rdma/Makefile         |   8 +-
 tools/testing/selftests/rdma/config           |   2 +
 .../testing/selftests/rdma/rxe_mr_overflow.c  | 187 ++++++++++++++++++
 .../testing/selftests/rdma/rxe_mr_overflow.sh | 132 +++++++++++++
 5 files changed, 330 insertions(+), 2 deletions(-)
 create mode 100644 tools/testing/selftests/rdma/rxe_mr_overflow.c
 create mode 100644 tools/testing/selftests/rdma/rxe_mr_overflow.sh

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2.43.0