diff options
| author | Kees Cook <keescook@chromium.org> | 2023-09-22 10:28:52 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-10-02 11:24:54 -0700 |
| commit | e7b34822fa4dcf6101deb3d51a77efd77533571d (patch) | |
| tree | 8efb0d66db93219c046cff916cd118f414a69569 /net/openvswitch | |
| parent | 59656519763d55bb93730ca17a11fba399a6ef49 (diff) | |
net: openvswitch: Annotate struct dp_meter_instance 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 dp_meter_instance.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Pravin B Shelar <pshelar@ovn.org>
Cc: dev@openvswitch.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230922172858.3822653-10-keescook@chromium.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/openvswitch')
| -rw-r--r-- | net/openvswitch/meter.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/openvswitch/meter.h b/net/openvswitch/meter.h index 0c33889a8515..013de694221f 100644 --- a/net/openvswitch/meter.h +++ b/net/openvswitch/meter.h @@ -45,7 +45,7 @@ struct dp_meter { struct dp_meter_instance { struct rcu_head rcu; u32 n_meters; - struct dp_meter __rcu *dp_meters[]; + struct dp_meter __rcu *dp_meters[] __counted_by(n_meters); }; struct dp_meter_table { |