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| author | Kees Cook <keescook@chromium.org> | 2023-09-29 21:04:24 +0300 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2023-10-02 14:44:54 +0300 |
| commit | 4755dc6f29597d9f52fe69e8230e145680e30f8d (patch) | |
| tree | 9e6ba7f5f22fb29752a27a6e0e419b61500ca082 | |
| parent | c9813b0b9992eab01a47ad8d10f0add13f898692 (diff) | |
| download | linux-4755dc6f29597d9f52fe69e8230e145680e30f8d.tar.xz | |
RDMA: Annotate struct rdma_hw_stats 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 rdma_hw_stats.
[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/20230929180431.3005464-1-keescook@chromium.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
| -rw-r--r-- | include/rdma/ib_verbs.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index fd61c3a56fa7..f8f0d3a4fdec 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -608,7 +608,7 @@ struct rdma_hw_stats { const struct rdma_stat_desc *descs; unsigned long *is_disabled; int num_counters; - u64 value[]; + u64 value[] __counted_by(num_counters); }; #define RDMA_HW_STATS_DEFAULT_LIFESPAN 10 |