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| author | Kees Cook <keescook@chromium.org> | 2023-09-29 11:11:49 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-10-04 15:37:13 -0700 |
| commit | 1508cb7e07520d34b5f45992bbd172dd5728cbc7 (patch) | |
| tree | 373fbf7c52c450afa298cf56eaf79ea54cd9f804 /drivers/net/ethernet/chelsio/cxgb4 | |
| parent | ceba9725fb4554c3cd07d055332272208b8a052f (diff) | |
| download | linux-1508cb7e07520d34b5f45992bbd172dd5728cbc7.tar.gz linux-1508cb7e07520d34b5f45992bbd172dd5728cbc7.tar.bz2 linux-1508cb7e07520d34b5f45992bbd172dd5728cbc7.zip | |
cxgb4: Annotate struct smt_data 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 smt_data.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Raju Rangoju <rajur@chelsio.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230929181149.3006432-5-keescook@chromium.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/smt.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/smt.h b/drivers/net/ethernet/chelsio/cxgb4/smt.h index 541249d78914..109c1dff563a 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/smt.h +++ b/drivers/net/ethernet/chelsio/cxgb4/smt.h @@ -66,7 +66,7 @@ struct smt_entry { struct smt_data { unsigned int smt_size; rwlock_t lock; - struct smt_entry smtab[]; + struct smt_entry smtab[] __counted_by(smt_size); }; struct smt_data *t4_init_smt(void); |