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authorKees Cook <keescook@chromium.org>2023-09-22 20:28:49 +0300
committerJakub Kicinski <kuba@kernel.org>2023-10-02 21:24:53 +0300
commita3d7a1209bbb06fe9d24b274475bc9879ca73333 (patch)
treecd96a088db74cd9a5a6308c423ec8164980c0a4f /include/net/mana
parent2290999d278e7552e71df6b13f619a4f73d348bc (diff)
downloadlinux-a3d7a1209bbb06fe9d24b274475bc9879ca73333.tar.xz
net: mana: Annotate struct mana_rxq 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 mana_rxq. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Wei Liu <wei.liu@kernel.org> Cc: Dexuan Cui <decui@microsoft.com> Cc: Long Li <longli@microsoft.com> Cc: Ajay Sharma <sharmaajay@microsoft.com> Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20230922172858.3822653-7-keescook@chromium.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/net/mana')
-rw-r--r--include/net/mana/mana.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/mana/mana.h b/include/net/mana/mana.h
index 9f70b4332238..38441be68592 100644
--- a/include/net/mana/mana.h
+++ b/include/net/mana/mana.h
@@ -338,7 +338,7 @@ struct mana_rxq {
/* MUST BE THE LAST MEMBER:
* Each receive buffer has an associated mana_recv_buf_oob.
*/
- struct mana_recv_buf_oob rx_oobs[];
+ struct mana_recv_buf_oob rx_oobs[] __counted_by(num_rx_buf);
};
struct mana_tx_qp {