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| author | Kees Cook <keescook@chromium.org> | 2023-09-29 21:04:29 +0300 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2023-10-02 14:44:54 +0300 |
| commit | 2aba54a9e0ead531f7fd35f312239788a435a4f5 (patch) | |
| tree | 4658d427b367c5ad4150b65616e726ad2d8387e4 | |
| parent | bd8eec5bfa59b59bc6e6abcfee9cae1a68769e89 (diff) | |
| download | linux-2aba54a9e0ead531f7fd35f312239788a435a4f5.tar.xz | |
IB/mthca: Annotate struct mthca_icm_table with __counted_by
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
(for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).
As found with Coccinelle[1], add __counted_by for struct mthca_icm_table.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: linux-rdma@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230929180431.3005464-6-keescook@chromium.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_memfree.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.h b/drivers/infiniband/hw/mthca/mthca_memfree.h index f9a2e65e2ff5..61d5bbba293a 100644 --- a/drivers/infiniband/hw/mthca/mthca_memfree.h +++ b/drivers/infiniband/hw/mthca/mthca_memfree.h @@ -68,7 +68,7 @@ struct mthca_icm_table { int lowmem; int coherent; struct mutex mutex; - struct mthca_icm *icm[]; + struct mthca_icm *icm[] __counted_by(num_icm); }; struct mthca_icm_iter { |