summaryrefslogtreecommitdiff
path: root/include/linux/kvm_host.h
diff options
context:
space:
mode:
authorKees Cook <keescook@chromium.org>2023-09-22 20:51:21 +0300
committerKees Cook <keescook@chromium.org>2023-10-09 08:46:04 +0300
commita48e1f656b3c9b8192b6ca6fc92ef4daa30535fb (patch)
tree5b28379fc69d279681395b22edbe56a05a8f0a36 /include/linux/kvm_host.h
parent51a71ab21f61ceb104aad2c9d29cd7e445adf1c5 (diff)
downloadlinux-a48e1f656b3c9b8192b6ca6fc92ef4daa30535fb.tar.xz
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.h2
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