printk: silence TEE logs from userspace

- Spams logs, pushing out useful messages - Reduces security because it exposes internal information Signed-off-by: kdrag0n <[email protected]>
RBT22 · Dec 17, 2022 · a6192c2 · a6192c2
1 parent 23012aa
commit a6192c2
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
@@ -818,7 +818,8 @@ static ssize_t devkmsg_write(struct kiocb *iocb, struct iov_iter *from)
 		}
 	}
 
-	if (strncmp("healthd", line, 7) == 0) {
+	if (unlikely(strncmp("healthd", line, 7) == 0 || strncmp("Trustonic TEE", line, 13) == 0))
+	{
 		return len;
 	}