From a2e5c2f7c8ec2b236a0c33cf9fc3cbab17c6cfcd Mon Sep 17 00:00:00 2001
From: Javier Lopez <graulopezjavier@gmail.com>
Date: Tue, 23 Nov 2021 23:07:47 -0500
Subject: fix(fileio): replace characters over INT_MAX with U+FFFD (#16354)

fixes #11877
credit: @zubairabid https://github.com/neovim/neovim/pull/12010
---
 src/nvim/fileio.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src')

diff --git a/src/nvim/fileio.c b/src/nvim/fileio.c
index 7573064fa9..1b39a7410a 100644
--- a/src/nvim/fileio.c
+++ b/src/nvim/fileio.c
@@ -1360,6 +1360,10 @@ retry:
               u8c += (unsigned)(*--p) << 16;
               u8c += (unsigned)(*--p) << 24;
             }
+            // Replace characters over INT_MAX with Unicode replacement character
+            if (u8c > INT_MAX) {
+              u8c = 0xfffd;
+            }
           } else {        // UTF-8
             if (*--p < 0x80) {
               u8c = *p;
-- 
cgit