diff options
| author | Kees Cook <keescook@chromium.org> | 2023-09-15 13:06:02 -0700 |
|---|---|---|
| committer | Kalle Valo <kvalo@kernel.org> | 2023-09-21 09:30:43 +0300 |
| commit | 357be7ebba38352a75d6e072cab4052e5a6e5064 (patch) | |
| tree | c12f71db5b067a05b9f9301c338e735769c7a4b2 /drivers/net/wireless/intel/ipw2x00 | |
| parent | a08bb28f6eb6143788755526a3839702dbfb678e (diff) | |
wifi: ipw2x00: Annotate struct libipw_txb 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 libipw_txb.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Stanislav Yakovlev <stas.yakovlev@gmail.com>
Cc: Kalle Valo <kvalo@kernel.org>
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230915200602.never.582-kees@kernel.org
Diffstat (limited to 'drivers/net/wireless/intel/ipw2x00')
| -rw-r--r-- | drivers/net/wireless/intel/ipw2x00/libipw.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/wireless/intel/ipw2x00/libipw.h b/drivers/net/wireless/intel/ipw2x00/libipw.h index bec7bc273748..9065ca5b0208 100644 --- a/drivers/net/wireless/intel/ipw2x00/libipw.h +++ b/drivers/net/wireless/intel/ipw2x00/libipw.h @@ -488,7 +488,7 @@ struct libipw_txb { u8 reserved; u16 frag_size; u16 payload_size; - struct sk_buff *fragments[]; + struct sk_buff *fragments[] __counted_by(nr_frags); }; /* SWEEP TABLE ENTRIES NUMBER */ |