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| author |   Kees Cook <keescook@chromium.org> | 2023-10-03 16:21:02 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2023-10-06 10:48:46 +0100 |
| commit | eaede99c3aeb38613c40a150f676f772faf2b42b (patch) | |
| tree | a763b88a594c39bdb8e8e29dde74f59fed8c4182 /drivers/net/macsec.c | |
| parent | nfp: nsp: Annotate struct nfp_eth_table with __counted_by (diff) | |
| download | wireguard-linux-eaede99c3aeb38613c40a150f676f772faf2b42b.tar.xz wireguard-linux-eaede99c3aeb38613c40a150f676f772faf2b42b.zip | |
netlink: Annotate struct netlink_policy_dump_state 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 netlink_policy_dump_state.
Additionally update the size of the usage array length before accessing
it. This requires remembering the old size for the memset() and later
assignments.
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: Johannes Berg <johannes.berg@intel.com>
Cc: netdev@vger.kernel.org
Link: https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci [1]
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/macsec.c')
0 files changed, 0 insertions, 0 deletions