From d4ccb2e0e6bd7ab976533ec2c0d62a8042bb5bc6 Mon Sep 17 00:00:00 2001
From: Joel Challis <git@zvecr.com>
Date: Sat, 25 Jan 2020 02:57:30 +0000
Subject: [PATCH] Fix printf buffer overflow when cols>16 (#7998)

---
 tmk_core/common/chibios/printf.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tmk_core/common/chibios/printf.c b/tmk_core/common/chibios/printf.c
index dcf33f35f..3a81acd31 100644
--- a/tmk_core/common/chibios/printf.c
+++ b/tmk_core/common/chibios/printf.c
@@ -120,7 +120,8 @@ static void putchw(void* putp, putcf putf, int n, char z, char* bf) {
 }
 
 void tfp_format(void* putp, putcf putf, char* fmt, va_list va) {
-    char bf[12];
+    // This used to handle max of 12, but binary support jumps this to at least 32
+    char bf[36];
 
     char ch;