diff options
| author | Kees Cook <[email protected]> | 2023-09-29 11:04:27 -0700 |
|---|---|---|
| committer | Leon Romanovsky <[email protected]> | 2023-10-02 14:44:54 +0300 |
| commit | 0bc018b7a7b73357d57f0f48289557a347bd1be8 (patch) | |
| tree | b1183a34dfd9d6b864bc06c4a852cf44c706a4ef | |
| parent | ed7c64de622ff9fd34c5e306a90f2462a156cbe6 (diff) | |
RDMA/siw: Annotate struct siw_pbl 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 siw_pbl.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Bernard Metzler <[email protected]>
Cc: Jason Gunthorpe <[email protected]>
Cc: Leon Romanovsky <[email protected]>
Cc: [email protected]
Signed-off-by: Kees Cook <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Leon Romanovsky <[email protected]>
| -rw-r--r-- | drivers/infiniband/sw/siw/siw.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/sw/siw/siw.h b/drivers/infiniband/sw/siw/siw.h index 1c78c1ca7d7a..cec5cccd2e75 100644 --- a/drivers/infiniband/sw/siw/siw.h +++ b/drivers/infiniband/sw/siw/siw.h @@ -137,7 +137,7 @@ struct siw_pble { struct siw_pbl { unsigned int num_buf; unsigned int max_buf; - struct siw_pble pbe[]; + struct siw_pble pbe[] __counted_by(max_buf); }; /* |