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| author | Kees Cook <keescook@chromium.org> | 2023-08-17 14:15:24 -0700 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2023-08-22 13:18:16 +0200 |
| commit | d4d3aaf25a6600d58774978cea9068974a8ea674 (patch) | |
| tree | 884f1b01f542ef989f30f58e2c9ed35c0c78ed49 /net/wireless | |
| parent | 93ca82447c3eab149b5b2588ab8bd9aa2eacef7c (diff) | |
| download | linux-d4d3aaf25a6600d58774978cea9068974a8ea674.tar.gz | |
wifi: cfg80211: Annotate struct cfg80211_cqm_config 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 cfg80211_cqm_config.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20230817211531.4193219-2-keescook@chromium.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/core.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/wireless/core.h b/net/wireless/core.h index 8a807b609ef733..507d184b8b40bc 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -298,7 +298,7 @@ struct cfg80211_cqm_config { u32 rssi_hyst; s32 last_rssi_event_value; int n_rssi_thresholds; - s32 rssi_thresholds[]; + s32 rssi_thresholds[] __counted_by(n_rssi_thresholds); }; void cfg80211_destroy_ifaces(struct cfg80211_registered_device *rdev); |