* [PATCH] nfp: nsp: Annotate struct nfp_eth_table with __counted_by
@ 2023-10-03 23:18 Kees Cook
2023-10-03 23:39 ` Gustavo A. R. Silva
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Kees Cook @ 2023-10-03 23:18 UTC (permalink / raw)
To: Simon Horman
Cc: Kees Cook, Simon Horman, Jakub Kicinski, David S. Miller,
Eric Dumazet, Paolo Abeni, Yinjun Zhang, Leon Romanovsky, Yu Xiao,
Sixiang Chen, oss-drivers, netdev, Louis Peens,
Gustavo A. R. Silva, Nathan Chancellor, Nick Desaulniers, Tom Rix,
linux-kernel, linux-hardening, llvm
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 nfp_eth_table.
Cc: Simon Horman <simon.horman@corigine.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Yinjun Zhang <yinjun.zhang@corigine.com>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Yu Xiao <yu.xiao@corigine.com>
Cc: Sixiang Chen <sixiang.chen@corigine.com>
Cc: oss-drivers@corigine.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>
---
drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h
index 6e044ac04917..00264af13b49 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h
@@ -241,7 +241,7 @@ struct nfp_eth_table {
u64 link_modes_supp[2];
u64 link_modes_ad[2];
- } ports[];
+ } ports[] __counted_by(count);
};
struct nfp_eth_table *nfp_eth_read_ports(struct nfp_cpp *cpp);
--
2.34.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] nfp: nsp: Annotate struct nfp_eth_table with __counted_by
2023-10-03 23:18 [PATCH] nfp: nsp: Annotate struct nfp_eth_table with __counted_by Kees Cook
@ 2023-10-03 23:39 ` Gustavo A. R. Silva
2023-10-04 5:15 ` Louis Peens
2023-10-06 9:50 ` patchwork-bot+netdevbpf
2 siblings, 0 replies; 4+ messages in thread
From: Gustavo A. R. Silva @ 2023-10-03 23:39 UTC (permalink / raw)
To: Kees Cook, Simon Horman
Cc: Simon Horman, Jakub Kicinski, David S. Miller, Eric Dumazet,
Paolo Abeni, Yinjun Zhang, Leon Romanovsky, Yu Xiao, Sixiang Chen,
oss-drivers, netdev, Louis Peens, Gustavo A. R. Silva,
Nathan Chancellor, Nick Desaulniers, Tom Rix, linux-kernel,
linux-hardening, llvm
On 10/4/23 01:18, Kees Cook wrote:
> 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 nfp_eth_table.
>
> Cc: Simon Horman <simon.horman@corigine.com>
> Cc: Jakub Kicinski <kuba@kernel.org>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Eric Dumazet <edumazet@google.com>
> Cc: Paolo Abeni <pabeni@redhat.com>
> Cc: Yinjun Zhang <yinjun.zhang@corigine.com>
> Cc: Leon Romanovsky <leon@kernel.org>
> Cc: Yu Xiao <yu.xiao@corigine.com>
> Cc: Sixiang Chen <sixiang.chen@corigine.com>
> Cc: oss-drivers@corigine.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>
Thanks
--
Gustavo
> ---
> drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h
> index 6e044ac04917..00264af13b49 100644
> --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h
> +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h
> @@ -241,7 +241,7 @@ struct nfp_eth_table {
>
> u64 link_modes_supp[2];
> u64 link_modes_ad[2];
> - } ports[];
> + } ports[] __counted_by(count);
> };
>
> struct nfp_eth_table *nfp_eth_read_ports(struct nfp_cpp *cpp);
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] nfp: nsp: Annotate struct nfp_eth_table with __counted_by
2023-10-03 23:18 [PATCH] nfp: nsp: Annotate struct nfp_eth_table with __counted_by Kees Cook
2023-10-03 23:39 ` Gustavo A. R. Silva
@ 2023-10-04 5:15 ` Louis Peens
2023-10-06 9:50 ` patchwork-bot+netdevbpf
2 siblings, 0 replies; 4+ messages in thread
From: Louis Peens @ 2023-10-04 5:15 UTC (permalink / raw)
To: Kees Cook
Cc: Simon Horman, Simon Horman, Jakub Kicinski, David S. Miller,
Eric Dumazet, Paolo Abeni, Yinjun Zhang, Leon Romanovsky, Yu Xiao,
Sixiang Chen, oss-drivers, netdev, Gustavo A. R. Silva,
Nathan Chancellor, Nick Desaulniers, Tom Rix, linux-kernel,
linux-hardening, llvm
On Tue, Oct 03, 2023 at 04:18:51PM -0700, Kees Cook wrote:
> 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 nfp_eth_table.
>
> Cc: Simon Horman <simon.horman@corigine.com>
> Cc: Jakub Kicinski <kuba@kernel.org>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: Eric Dumazet <edumazet@google.com>
> Cc: Paolo Abeni <pabeni@redhat.com>
> Cc: Yinjun Zhang <yinjun.zhang@corigine.com>
> Cc: Leon Romanovsky <leon@kernel.org>
> Cc: Yu Xiao <yu.xiao@corigine.com>
> Cc: Sixiang Chen <sixiang.chen@corigine.com>
> Cc: oss-drivers@corigine.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>
Likewise here, thanks for updating
Acked-by: Louis Peens <louis.peens@corigine.com>
> ---
> drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h
> index 6e044ac04917..00264af13b49 100644
> --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h
> +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.h
> @@ -241,7 +241,7 @@ struct nfp_eth_table {
>
> u64 link_modes_supp[2];
> u64 link_modes_ad[2];
> - } ports[];
> + } ports[] __counted_by(count);
> };
>
> struct nfp_eth_table *nfp_eth_read_ports(struct nfp_cpp *cpp);
> --
> 2.34.1
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] nfp: nsp: Annotate struct nfp_eth_table with __counted_by
2023-10-03 23:18 [PATCH] nfp: nsp: Annotate struct nfp_eth_table with __counted_by Kees Cook
2023-10-03 23:39 ` Gustavo A. R. Silva
2023-10-04 5:15 ` Louis Peens
@ 2023-10-06 9:50 ` patchwork-bot+netdevbpf
2 siblings, 0 replies; 4+ messages in thread
From: patchwork-bot+netdevbpf @ 2023-10-06 9:50 UTC (permalink / raw)
To: Kees Cook
Cc: horms, simon.horman, kuba, davem, edumazet, pabeni, yinjun.zhang,
leon, yu.xiao, sixiang.chen, oss-drivers, netdev, louis.peens,
gustavoars, nathan, ndesaulniers, trix, linux-kernel,
linux-hardening, llvm
Hello:
This patch was applied to netdev/net-next.git (main)
by David S. Miller <davem@davemloft.net>:
On Tue, 3 Oct 2023 16:18:51 -0700 you wrote:
> 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 nfp_eth_table.
>
> [...]
Here is the summary with links:
- nfp: nsp: Annotate struct nfp_eth_table with __counted_by
https://git.kernel.org/netdev/net-next/c/178e9bf9b57d
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
^ permalink raw reply [flat|nested] 4+ messages in thread
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2023-10-03 23:18 [PATCH] nfp: nsp: Annotate struct nfp_eth_table with __counted_by Kees Cook
2023-10-03 23:39 ` Gustavo A. R. Silva
2023-10-04 5:15 ` Louis Peens
2023-10-06 9:50 ` patchwork-bot+netdevbpf
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