diff options
| author | Kees Cook <[email protected]> | 2023-09-22 10:54:08 -0700 |
|---|---|---|
| committer | Christian Brauner <[email protected]> | 2023-10-19 11:02:48 +0200 |
| commit | 85fadf89e5708d74c4923e9ceeca4b9df0e000bb (patch) | |
| tree | 6cc4522ea96b4f0fcf5537e8d7d2dca322899a8b /include/linux/watch_queue.h | |
| parent | 478dbf12176700f28d836dd03ae93a6888278230 (diff) | |
watch_queue: Annotate struct watch_filter 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 watch_filter.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: David Howells <[email protected]>
Cc: Randy Dunlap <[email protected]>
Cc: Al Viro <[email protected]>
Cc: Christian Brauner <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Siddh Raman Pant <[email protected]>
Cc: Mauro Carvalho Chehab <[email protected]>
Cc: Qian Cai <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Tested-by: Siddh Raman Pant <[email protected]>
Reviewed-by: "Gustavo A. R. Silva" <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Christian Brauner <[email protected]>
Diffstat (limited to 'include/linux/watch_queue.h')
| -rw-r--r-- | include/linux/watch_queue.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/watch_queue.h b/include/linux/watch_queue.h index 45cd42f55d49..429c7b6afead 100644 --- a/include/linux/watch_queue.h +++ b/include/linux/watch_queue.h @@ -32,7 +32,7 @@ struct watch_filter { DECLARE_BITMAP(type_filter, WATCH_TYPE__NR); }; u32 nr_filters; /* Number of filters */ - struct watch_type_filter filters[]; + struct watch_type_filter filters[] __counted_by(nr_filters); }; struct watch_queue { |