1 files changed, 1 insertions, 1 deletions

diff --git a/kernel/printk.c b/kernel/printk.c
index bee36100f110..9adc2a473e6e 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -666,7 +666,7 @@ asmlinkage int vprintk(const char *fmt, va_list args)
         }
         /* Emit the output into the temporary buffer */
         printed_len += vscnprintf(printk_buf + printed_len,
-                                  sizeof(printk_buf), fmt, args);
+                                  sizeof(printk_buf) - printed_len, fmt, args);
 
         /*
          * Copy the output into log_buf.  If the caller didn't provide