From cc34c669abe0c198daec20de5185c8187f4b240d Mon Sep 17 00:00:00 2001 From: Thorsten Blum Date: Mon, 12 Jan 2026 12:53:11 +0100 Subject: [PATCH] ecryptfs: Annotate struct ecryptfs_message with __counted_by Add the __counted_by() compiler attribute to the flexible array member 'data' to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE. Signed-off-by: Thorsten Blum Acked-by: Tyler Hicks Link: https://patch.msgid.link/20260112115314.739612-2-thorsten.blum@linux.dev Signed-off-by: Kees Cook --- fs/ecryptfs/ecryptfs_kernel.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h index 62a2ea7f59eda..f58b12be82674 100644 --- a/fs/ecryptfs/ecryptfs_kernel.h +++ b/fs/ecryptfs/ecryptfs_kernel.h @@ -359,7 +359,7 @@ struct ecryptfs_message { /* Inherits from msg_ctx->index */ u32 index; u32 data_len; - u8 data[]; + u8 data[] __counted_by(data_len); }; struct ecryptfs_msg_ctx { -- 2.47.3