diff options
| author | Kees Cook <keescook@chromium.org> | 2023-09-22 10:51:21 -0700 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2023-10-08 22:46:04 -0700 |
| commit | a48e1f656b3c9b8192b6ca6fc92ef4daa30535fb (patch) | |
| tree | 5b28379fc69d279681395b22edbe56a05a8f0a36 /include/linux/kvm_host.h | |
| parent | 51a71ab21f61ceb104aad2c9d29cd7e445adf1c5 (diff) | |
KVM: Annotate struct kvm_irq_routing_table 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 kvm_irq_routing_table.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org
Reviewed-by: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230922175121.work.660-kees@kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'include/linux/kvm_host.h')
| -rw-r--r-- | include/linux/kvm_host.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index fb6c6109fdca..4944136efaa2 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -664,7 +664,7 @@ struct kvm_irq_routing_table { * Array indexed by gsi. Each entry contains list of irq chips * the gsi is connected to. */ - struct hlist_head map[]; + struct hlist_head map[] __counted_by(nr_rt_entries); }; #endif |