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| author | Kees Cook <keescook@chromium.org> | 2023-08-17 23:41:47 +0300 |
|---|---|---|
| committer | Georgi Djakov <djakov@kernel.org> | 2023-08-22 01:11:22 +0300 |
| commit | 6f0c60f1461181c4edcd916a9647145e9d5cff98 (patch) | |
| tree | 2b816cf4e4aa0d997f7f25a36359f845fc4b0f50 /drivers/interconnect | |
| parent | b1e0cdb0f6974380501d7ab70e025534f84d415e (diff) | |
| download | linux-6f0c60f1461181c4edcd916a9647145e9d5cff98.tar.xz | |
interconnect: Annotate struct icc_path 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 icc_path.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Georgi Djakov <djakov@kernel.org>
Cc: linux-pm@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230817204144.never.605-kees@kernel.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Diffstat (limited to 'drivers/interconnect')
| -rw-r--r-- | drivers/interconnect/internal.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/interconnect/internal.h b/drivers/interconnect/internal.h index f5f82a5c939e..b30856db523d 100644 --- a/drivers/interconnect/internal.h +++ b/drivers/interconnect/internal.h @@ -38,7 +38,7 @@ struct icc_req { struct icc_path { const char *name; size_t num_nodes; - struct icc_req reqs[]; + struct icc_req reqs[] __counted_by(num_nodes); }; #endif |