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| author | Kees Cook <keescook@chromium.org> | 2023-09-22 10:54:25 -0700 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2023-09-24 22:50:25 +0200 |
| commit | 3a133a4e44554bb7af114f231db2f30f447417cc (patch) | |
| tree | dd174d2789e39cb01f4d58d6c3969b2c0159fd23 /drivers/i2c | |
| parent | 86f8a1ef96819d2ae62eaf3d89a0f0404348daa3 (diff) | |
| download | linux-3a133a4e44554bb7af114f231db2f30f447417cc.tar.gz | |
i2c: Annotate struct i2c_atr 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 i2c_atr.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/i2c-atr.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/i2c/i2c-atr.c b/drivers/i2c/i2c-atr.c index 8ca1daadec9373..f21475ae592183 100644 --- a/drivers/i2c/i2c-atr.c +++ b/drivers/i2c/i2c-atr.c @@ -94,7 +94,7 @@ struct i2c_atr { struct notifier_block i2c_nb; - struct i2c_adapter *adapter[]; + struct i2c_adapter *adapter[] __counted_by(max_adapters); }; static struct i2c_atr_alias_pair * |