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smb: Annotate struct xattr_smb_acl with __counted_by()

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Add the __counted_by compiler attribute to the flexible array member
entries to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and
CONFIG_FORTIFY_SOURCE.

Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Thorsten Blum 2024-08-23 13:47:05 +02:00 committed by Steve French
parent 780bdc1ba7
commit 8d8d244726
1 changed files with 1 additions and 1 deletions
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2
fs/smb/server/xattr.h
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@ -76,7 +76,7 @@ struct xattr_acl_entry {
struct xattr_smb_acl {
int count;
int next;
struct xattr_acl_entry entries[];
struct xattr_acl_entry entries[] __counted_by(count);
};
/* 64bytes hash in xattr_ntacl is computed with sha256 */