| Message ID | 20230922175322.work.170-kees@kernel.org (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | c40897f4730f4f9a37f3155e3e0452e1c8da37b4 |
| Headers | show |
| Series | spi: mchp-pci1xxxx: Annotate struct pci1xxxx_spi with __counted_by | expand |
On Fri, 22 Sep 2023 10:53:23 -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 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 pci1xxxx_spi. > > [...] Applied to https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next Thanks! [1/1] spi: mchp-pci1xxxx: Annotate struct pci1xxxx_spi with __counted_by commit: c40897f4730f4f9a37f3155e3e0452e1c8da37b4 All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark
On Fri, Sep 22, 2023 at 10:53:23AM -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 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 pci1xxxx_spi. > > [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci > > Cc: Mark Brown <broonie@kernel.org> > Cc: linux-spi@vger.kernel.org > Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Thanks -- Gustavo > --- > drivers/spi/spi-pci1xxxx.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/spi/spi-pci1xxxx.c b/drivers/spi/spi-pci1xxxx.c > index 3638e974f5d4..5b2d3e4e21b7 100644 > --- a/drivers/spi/spi-pci1xxxx.c > +++ b/drivers/spi/spi-pci1xxxx.c > @@ -77,7 +77,7 @@ struct pci1xxxx_spi { > struct pci_dev *dev; > u8 total_hw_instances; > void __iomem *reg_base; > - struct pci1xxxx_spi_internal *spi_int[]; > + struct pci1xxxx_spi_internal *spi_int[] __counted_by(total_hw_instances); > }; > > static const struct pci_device_id pci1xxxx_spi_pci_id_table[] = { > -- > 2.34.1 > >
diff --git a/drivers/spi/spi-pci1xxxx.c b/drivers/spi/spi-pci1xxxx.c index 3638e974f5d4..5b2d3e4e21b7 100644 --- a/drivers/spi/spi-pci1xxxx.c +++ b/drivers/spi/spi-pci1xxxx.c @@ -77,7 +77,7 @@ struct pci1xxxx_spi { struct pci_dev *dev; u8 total_hw_instances; void __iomem *reg_base; - struct pci1xxxx_spi_internal *spi_int[]; + struct pci1xxxx_spi_internal *spi_int[] __counted_by(total_hw_instances); }; static const struct pci_device_id pci1xxxx_spi_pci_id_table[] = {
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 pci1xxxx_spi. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: Mark Brown <broonie@kernel.org> Cc: linux-spi@vger.kernel.org Signed-off-by: Kees Cook <keescook@chromium.org> --- drivers/spi/spi-pci1xxxx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)