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| author | Kees Cook <keescook@chromium.org> | 2023-10-13 20:04:12 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2023-10-13 20:18:42 -0700 |
| commit | 787650cc335201a0489905c5504a9179470ebc51 (patch) | |
| tree | 2b9f47b4707fc553ea205e9bdc33b20873e9014f | |
| parent | 68ede283a1d8fe0813b218aeb498faf3b0fc0a7b (diff) | |
| download | input-787650cc335201a0489905c5504a9179470ebc51.tar.gz | |
Input: Annotate struct ff_device 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 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 ff_device.
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20231006201739.work.350-kees@kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| -rw-r--r-- | include/linux/input.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/input.h b/include/linux/input.h index 49790c1bd2c43e..de6503c0edb8ef 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -562,7 +562,7 @@ struct ff_device { int max_effects; struct ff_effect *effects; - struct file *effect_owners[]; + struct file *effect_owners[] __counted_by(max_effects); }; int input_ff_create(struct input_dev *dev, unsigned int max_effects); |