diff options
| author | Kees Cook <keescook@chromium.org> | 2023-09-22 10:53:51 -0700 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2023-10-08 22:46:05 -0700 |
| commit | c5225cd073c65a6d7e8e311ec0114792a671982a (patch) | |
| tree | 459e4e9ace2bd45ce2cb53bf9e197aa656245bc6 /drivers/mailbox | |
| parent | 86748637bff4d1fd1c4fb3c7e5aedf0baca44a93 (diff) | |
mailbox: zynqmp: Annotate struct zynqmp_ipi_pdata 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 zynqmp_ipi_pdata.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Jassi Brar <jassisinghbrar@gmail.com>
Cc: Michal Simek <michal.simek@amd.com>
Cc: linux-arm-kernel@lists.infradead.org
Reviewed-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Acked-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20230922175351.work.018-kees@kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'drivers/mailbox')
| -rw-r--r-- | drivers/mailbox/zynqmp-ipi-mailbox.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mailbox/zynqmp-ipi-mailbox.c b/drivers/mailbox/zynqmp-ipi-mailbox.c index e4fcac97dbfa..7fa533e80dd9 100644 --- a/drivers/mailbox/zynqmp-ipi-mailbox.c +++ b/drivers/mailbox/zynqmp-ipi-mailbox.c @@ -108,7 +108,7 @@ struct zynqmp_ipi_pdata { unsigned int method; u32 local_id; int num_mboxes; - struct zynqmp_ipi_mbox ipi_mboxes[]; + struct zynqmp_ipi_mbox ipi_mboxes[] __counted_by(num_mboxes); }; static struct device_driver zynqmp_ipi_mbox_driver = { |