diff mbox series

[RESEND] nfs: Annotate struct pnfs_commit_array with __counted_by()

Message ID 20241107104820.1620-2-thorsten.blum@linux.dev (mailing list archive)
State In Next
Commit e8e26a0b09f5783be471b5ffb1e31822b1272c1d
Headers show
Series [RESEND] nfs: Annotate struct pnfs_commit_array with __counted_by() | expand

Commit Message

Thorsten Blum Nov. 7, 2024, 10:48 a.m. UTC
Add the __counted_by compiler attribute to the flexible array member
buckets to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and
CONFIG_FORTIFY_SOURCE.

Compile-tested only.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
 include/linux/nfs_xdr.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 12d8e47bc5a3..559273a0f16d 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1336,7 +1336,7 @@  struct pnfs_commit_array {
 	struct rcu_head rcu;
 	refcount_t refcount;
 	unsigned int nbuckets;
-	struct pnfs_commit_bucket buckets[];
+	struct pnfs_commit_bucket buckets[] __counted_by(nbuckets);
 };
 
 struct pnfs_ds_commit_info {