From: Thorsten Blum <blum@kernel.org>
To: Ilya Dryomov <idryomov@gmail.com>,
Alex Markuze <amarkuze@redhat.com>, Xiubo Li <xiubo.li@clyso.com>,
Viacheslav Dubeyko <slava@dubeyko.com>,
Kees Cook <kees@kernel.org>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>
Cc: Thorsten Blum <blum@kernel.org>,
ceph-devel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-hardening@vger.kernel.org
Subject: [PATCH] libceph: Annotate crush_rule::steps with __counted_by()
Date: Tue, 3 Nov 2026 17:22:28 +0100 [thread overview]
Message-ID: <20261103162226.433523-3-blum@kernel.org> (raw)
Add __counted_by() to crush_rule::steps to improve access bounds
checking via CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE.
Signed-off-by: Thorsten Blum <blum@kernel.org>
---
include/linux/crush/crush.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/crush/crush.h b/include/linux/crush/crush.h
index 30dba392b730..7d243b9b1093 100644
--- a/include/linux/crush/crush.h
+++ b/include/linux/crush/crush.h
@@ -87,7 +87,7 @@ struct crush_rule_mask {
struct crush_rule {
__u32 len;
struct crush_rule_mask mask;
- struct crush_rule_step steps[];
+ struct crush_rule_step steps[] __counted_by(len);
};
#define crush_rule_size(len) (sizeof(struct crush_rule) + \
reply other threads:[~2026-11-03 16:23 UTC|newest]
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