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| author | Kees Cook <keescook@chromium.org> | 2023-09-22 19:28:55 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-10-02 20:24:55 +0200 |
| commit | 0d01cfe5aaafdff82df0381295620e58db29d0a8 (patch) | |
| tree | df12ae00ddbab5330954ed7d433965f2dacecd74 /drivers/net/ethernet/dec | |
| parent | net: openvswitch: Annotate struct dp_meter with __counted_by (diff) | |
| download | linux-0d01cfe5aaafdff82df0381295620e58db29d0a8.tar.xz linux-0d01cfe5aaafdff82df0381295620e58db29d0a8.zip | |
net: tulip: Annotate struct mediatable 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 mediatable.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Shaokun Zhang <zhangshaokun@hisilicon.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230922172858.3822653-13-keescook@chromium.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/dec')
| -rw-r--r-- | drivers/net/ethernet/dec/tulip/tulip.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/dec/tulip/tulip.h b/drivers/net/ethernet/dec/tulip/tulip.h index 0ed598dc7569..bd786dfbc066 100644 --- a/drivers/net/ethernet/dec/tulip/tulip.h +++ b/drivers/net/ethernet/dec/tulip/tulip.h @@ -381,7 +381,7 @@ struct mediatable { unsigned has_reset:6; u32 csr15dir; u32 csr15val; /* 21143 NWay setting. */ - struct medialeaf mleaf[]; + struct medialeaf mleaf[] __counted_by(leafcount); }; |