vim: Security Fix for CVE-2026-57456

Picking patch as per [1], and same patch is mentioned in [2]

References:
[1] https://nvd.nist.gov/vuln/detail/CVE-2026-57456
[2] https://security-tracker.debian.org/tracker/CVE-2026-57456

(From OE-Core rev: 146c6244fdc0647f6c24b92cc8410da02645ee96)

Signed-off-by: Siddharth Doshi <sdoshi@mvista.com>
Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-support/vim/files/CVE-2026-57456.patch

@@ -0,0 +1,90 @@
+From 911e10a2e8e677c3982d392e185b7d9b3e574401 Mon Sep 17 00:00:00 2001
+From: Christian Brabandt <cb@256bit.org>
+Date: Sun, 21 Jun 2026 19:50:56 +0000
+Subject: [PATCH 14/17] patch 9.2.0699: [security]: possible code execution
+ with python complete
+
+Problem:  [security]: possible code execution with python complete
+          (morningbread)
+Solution: Use repr() to quote the doc strings correctly
+
+Github Security Advisory:
+https://github.com/vim/vim/security/advisories/GHSA-ppj8-wqjf-6fp3
+
+Supported by AI
+
+Signed-off-by: Christian Brabandt <cb@256bit.org>
+
+Upstream-Status: Backport [https://github.com/vim/vim/commit/cce141c42740f122dd8486ae04e21c2a81016ba8]
+CVE: CVE-2026-57456
+Signed-off-by: Siddharth Doshi <sdoshi@mvista.com>
+---
+ runtime/autoload/python3complete.vim | 6 +++---
+ runtime/autoload/pythoncomplete.vim  | 6 +++---
+ 2 files changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/runtime/autoload/python3complete.vim b/runtime/autoload/python3complete.vim
+index 56ee636b8d..e7cd149cdd 100644
+--- a/runtime/autoload/python3complete.vim
++++ b/runtime/autoload/python3complete.vim
+@@ -326,7 +326,7 @@ class Scope(object):
+ 
+     def get_code(self):
+         str = ""
+-        if len(self.docstr) > 0: str += '"""'+self.docstr+'"""\n'
++        if len(self.docstr) > 0: str += repr(self.docstr)+'\n'
+         str += 'class _PyCmplNoType:\n    def __getattr__(self,name):\n        return None\n'
+         for sub in self.subscopes:
+             str += sub.get_code()
+@@ -369,7 +369,7 @@ class Class(Scope):
+                        if _DOTTED_NAME_RE.match(s.strip())]
+         if len(safe_supers) > 0: str += '(%s)' % ','.join(safe_supers)
+         str += ':\n'
+-        if len(self.docstr) > 0: str += self.childindent()+'"""'+self.docstr+'"""\n'
++        if len(self.docstr) > 0: str += self.childindent()+repr(self.docstr)+'\n'
+         if len(self.subscopes) > 0:
+             for s in self.subscopes: str += s.get_code()
+         else:
+@@ -392,7 +392,7 @@ class Function(Scope):
+         safe_params = [p for p in safe_params if p]
+         str = "%sdef %s(%s):\n" % \
+             (self.currentindent(),self.name,','.join(safe_params))
+-        if len(self.docstr) > 0: str += self.childindent()+'"""'+self.docstr+'"""\n'
++        if len(self.docstr) > 0: str += self.childindent()+repr(self.docstr)+'\n'
+         str += "%spass\n" % self.childindent()
+         return str
+ 
+diff --git a/runtime/autoload/pythoncomplete.vim b/runtime/autoload/pythoncomplete.vim
+index 0f41405c0e..abef32faf2 100644
+--- a/runtime/autoload/pythoncomplete.vim
++++ b/runtime/autoload/pythoncomplete.vim
+@@ -341,7 +341,7 @@ class Scope(object):
+ 
+     def get_code(self):
+         str = ""
+-        if len(self.docstr) > 0: str += '"""'+self.docstr+'"""\n'
++        if len(self.docstr) > 0: str += repr(self.docstr)+'\n'
+         str += 'class _PyCmplNoType:\n    def __getattr__(self,name):\n        return None\n'
+         for sub in self.subscopes:
+             str += sub.get_code()
+@@ -384,7 +384,7 @@ class Class(Scope):
+                        if _DOTTED_NAME_RE.match(s.strip())]
+         if len(safe_supers) > 0: str += '(%s)' % ','.join(safe_supers)
+         str += ':\n'
+-        if len(self.docstr) > 0: str += self.childindent()+'"""'+self.docstr+'"""\n'
++        if len(self.docstr) > 0: str += self.childindent()+repr(self.docstr)+'\n'
+         if len(self.subscopes) > 0:
+             for s in self.subscopes: str += s.get_code()
+         else:
+@@ -407,7 +407,7 @@ class Function(Scope):
+         safe_params = [p for p in safe_params if p]
+         str = "%sdef %s(%s):\n" % \
+             (self.currentindent(),self.name,','.join(safe_params))
+-        if len(self.docstr) > 0: str += self.childindent()+'"""'+self.docstr+'"""\n'
++        if len(self.docstr) > 0: str += self.childindent()+repr(self.docstr)+'\n'
+         str += "%spass\n" % self.childindent()
+         return str
+ 
+-- 
+2.44.4
+

meta/recipes-support/vim/vim.inc

@@ -49,6 +49,7 @@ SRC_URI = "git://github.com/vim/vim.git;branch=master;protocol=https \
            file://CVE-2026-59856.patch \
            file://CVE-2026-59857.patch \
            file://CVE-2026-59858.patch \
+           file://CVE-2026-57456.patch \
            "
 
 PV .= ".1683"