diff options
| author | Kees Cook <keescook@chromium.org> | 2023-09-29 11:04:25 -0700 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2023-10-02 14:44:54 +0300 |
| commit | fc424078f50840a6610bfdd860cb0c515fe33398 (patch) | |
| tree | 5960dfabe569aad2943ed816abe9abdc8c9ce163 /drivers/infiniband/core | |
| parent | 4755dc6f29597d9f52fe69e8230e145680e30f8d (diff) | |
RDMA/core: Annotate struct ib_pkey_cache 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 ib_pkey_cache.
[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: "Håkon Bugge" <haakon.bugge@oracle.com>
Cc: Avihai Horon <avihaih@nvidia.com>
Cc: Anand Khoje <anand.a.khoje@oracle.com>
Cc: Mark Bloch <mbloch@nvidia.com>
Cc: linux-rdma@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230929180431.3005464-2-keescook@chromium.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'drivers/infiniband/core')
| -rw-r--r-- | drivers/infiniband/core/cache.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index 7acc0f936dad..c02a96d3572a 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -46,7 +46,7 @@ struct ib_pkey_cache { int table_len; - u16 table[]; + u16 table[] __counted_by(table_len); }; struct ib_update_work { |