io_uring: fix mis-seting personality's creds

After io_identity_cow() copies an work.identity it wants to copy creds to the new just allocated id, not the old one. Otherwise it's akin to req->work.identity->creds = req->work.identity->creds. Signed-off-by: Pavel Begunkov <[email protected]> Signed-off-by: Jens Axboe <[email protected]>
niw · Dec 7, 2020 · e8c954d · e8c954d
1 parent 2d280bc
commit e8c954d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/fs/io_uring.c b/fs/io_uring.c
@@ -1284,7 +1284,7 @@ static bool io_identity_cow(struct io_kiocb *req)
 	 */
 	io_init_identity(id);
 	if (creds)
-		req->work.identity->creds = creds;
+		id->creds = creds;
 
 	/* add one for this request */
 	refcount_inc(&id->count);