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| author | Kees Cook <keescook@chromium.org> | 2023-09-22 10:52:57 -0700 |
|---|---|---|
| committer | Krzysztof Wilczyński <kwilczynski@kernel.org> | 2023-10-14 20:02:55 +0000 |
| commit | f741bcadfe52e424985926d4d1c1e3941bf8403e (patch) | |
| tree | 1b2c1f198e26da15997248d937197cc14a646841 /drivers/pci/controller/pci-hyperv.c | |
| parent | 0bb80ecc33a8fb5a682236443c1e740d5c917d1d (diff) | |
| download | linux-f741bcadfe52e424985926d4d1c1e3941bf8403e.tar.gz linux-f741bcadfe52e424985926d4d1c1e3941bf8403e.tar.bz2 linux-f741bcadfe52e424985926d4d1c1e3941bf8403e.zip | |
PCI: hv: Annotate struct hv_dr_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 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 hv_dr_state.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Link: https://lore.kernel.org/linux-pci/20230922175257.work.900-kees@kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Acked-by: Wei Liu <wei.liu@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Dexuan Cui <decui@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Krzysztof Wilczyński <kw@linux.com>
Cc: Lorenzo Pieralisi <lpieralisi@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Wei Liu <wei.liu@kernel.org>
Cc: linux-hyperv@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Diffstat (limited to 'drivers/pci/controller/pci-hyperv.c')
| -rw-r--r-- | drivers/pci/controller/pci-hyperv.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c index bed3cefdaf19..30c7dfeccb16 100644 --- a/drivers/pci/controller/pci-hyperv.c +++ b/drivers/pci/controller/pci-hyperv.c @@ -545,7 +545,7 @@ struct hv_pcidev_description { struct hv_dr_state { struct list_head list_entry; u32 device_count; - struct hv_pcidev_description func[]; + struct hv_pcidev_description func[] __counted_by(device_count); }; struct hv_pci_dev { |