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[1] https://github.com/vim/vim/commit/581a2f3ac9c6f96a26324f6b2c8c11415fd0d452 [2] https://nvd.nist.gov/vuln/detail/CVE-2026-73076 Signed-off-by: Hitendra Prajapati --- .../vim/files/CVE-2026-73076.patch | 155 ++++++++++++++++++ meta/recipes-support/vim/vim.inc | 1 + 2 files changed, 156 insertions(+) create mode 100644 meta/recipes-support/vim/files/CVE-2026-73076.patch diff --git a/meta/recipes-support/vim/files/CVE-2026-73076.patch b/meta/recipes-support/vim/files/CVE-2026-73076.patch new file mode 100644 index 0000000000..5ed023a747 --- /dev/null +++ b/meta/recipes-support/vim/files/CVE-2026-73076.patch @@ -0,0 +1,155 @@ +From c74d28b907af0b1f1621f881f098374124bcd53d Mon Sep 17 00:00:00 2001 +From: Christian Brabandt +Date: Fri, 24 Jul 2026 17:43:51 +0200 +Subject: [PATCH] patch 9.2.0847: [security]: vimball: code execution via + .VimballRecord file + +Problem: [security]: vimball: code execution via .VimballRecord file + (tdjackey) +Solution: Forbid arbitrary commands, fix broken directory deletion code, + refactor code + +Github Security Advisory: +https://github.com/vim/vim/security/advisories/GHSA-r22p-fhw4-84p2 +Signed-off-by: Christian Brabandt + +Backport Changes: + +The .VimballRecord rejection is placed after the fenc/filecnt extraction +because the earlier strange-filename check block present in upstream 9.2 does +not exist in the 9.1.1683 vim sources. +Omitted src/testdir/test_plugin_vimball.vim because the current vim source +archive does not include it. + +CVE: CVE-2026-73076 +Upstream-Status: Backport [https://github.com/vim/vim/commit/581a2f3ac9c6f96a26324f6b2c8c11415fd0d452] +Signed-off-by: Hitendra Prajapati +--- + runtime/autoload/vimball.vim | 62 +++++++++++++++++++++--------------- + 1 file changed, 37 insertions(+), 25 deletions(-) + +diff --git a/runtime/autoload/vimball.vim b/runtime/autoload/vimball.vim +index 6456984411..803d19a83b 100644 +--- a/runtime/autoload/vimball.vim ++++ b/runtime/autoload/vimball.vim +@@ -18,9 +18,9 @@ if &cp || exists("g:loaded_vimball") + finish + endif + let g:loaded_vimball = "v37" +-if v:version < 702 ++if v:version < 900 + echohl WarningMsg +- echo "***warning*** this version of vimball needs vim 7.2" ++ echo "***warning*** this version of vimball needs vim 9.0" + echohl Normal + finish + endif +@@ -270,6 +270,13 @@ fun! vimball#Vimball(really,...) + let fenc = substitute(getline(linenr+1),'^\d\+\s*\(\S\{-}\)$','\1','') + let filecnt = filecnt + 1 + " call Decho("fname<".fname."> fsize=".fsize." filecnt=".filecnt. " fenc=".fenc) ++ if fname =~? '\%(^\|/\)\.VimballRecord$' ++ echomsg "(Vimball) Forbidding .VimballRecord filename, aborting..." ++ exe "tabn ".curtabnr ++ bw! Vimball ++ call s:ChgDir(curdir) ++ return ++ endif + + if a:really + echomsg "extracted <".fname.">: ".fsize." lines" +@@ -309,7 +316,7 @@ fun! vimball#Vimball(really,...) + else + call mkdir(dirname) + endif +- call s:RecordInVar(home,"rmdir('".dirname."')") ++ call s:RecordDirInVar(dirname) + endif + endwhile + endif +@@ -343,7 +350,7 @@ fun! vimball#Vimball(really,...) + exe "silent w! ".fnameescape(fnamepath) + endif + echo "wrote ".fnameescape(fnamepath) +- call s:RecordInVar(home,"call delete('".fnamepath."')") ++ call s:RecordInVar(fnamepath) + endif + + " return to tab with vimball +@@ -464,11 +471,17 @@ fun! vimball#RmVimball(...) + let s:VBRstring= substitute(exestring,'call delete(','','g') + let s:VBRstring= substitute(s:VBRstring,"[')]",'','g') + " call Decho("exe ".exestring) +- sil! keepalt keepjumps exe exestring ++ let nr_files= 0 ++ for line in split(exestring, '|') ++ if line !~ '^call delete(''[^'']\{-}''\(,"d"\)\?)$' ++ echomsg "ignoring .VimballRecord entry: " line ++ else ++ sil! keepalt keepjumps exe line ++ let nr_files+= 1 ++ endif ++ endfor + sil! keepalt keepjumps d +- let exestring= strlen(substitute(exestring,'call delete(.\{-})|\=',"D","g")) +-" call Decho("exestring<".exestring.">") +- echomsg "removed ".exestring." files" ++ echomsg "removed ".nr_files." files" + else + let s:VBRstring= '' + let curfile = substitute(curfile,'\.vmb','','') +@@ -622,23 +635,22 @@ fun! s:ChgDir(newdir) + endfun + + " --------------------------------------------------------------------- +-" s:RecordInVar: record a un-vimball command in the .VimballRecord file {{{2 +-fun! s:RecordInVar(home,cmd) +-" call Dfunc("RecordInVar(home<".a:home."> cmd<".a:cmd.">)") +- if a:cmd =~ '^rmdir' +-" if !exists("s:recorddir") +-" let s:recorddir= substitute(a:cmd,'^rmdir',"call s:Rmdir",'') +-" else +-" let s:recorddir= s:recorddir."|".substitute(a:cmd,'^rmdir',"call s:Rmdir",'') +-" endif +- elseif !exists("s:recordfile") +- let s:recordfile= a:cmd +- else +- let s:recordfile= s:recordfile."|".a:cmd ++" s:RecordInVar: record a un-vimball file deletion in the .VimballRecord file {{{2 ++fun! s:RecordInVar(file) ++ if !exists("s:recordfile") ++ let s:recordfile=[] + endif +-" call Dret("RecordInVar : s:recordfile<".(exists("s:recordfile")? s:recordfile : "")."> s:recorddir<".(exists("s:recorddir")? s:recorddir : "").">") ++ call add(s:recordfile, $'call delete({string(a:file)})') + endfun + ++" s:RecordDirInVar: record a un-vimball dir deletion in the .VimballRecord file {{{2 ++fun! s:RecordDirInVar(dir) ++ if !exists("s:recorddir") ++ let s:recorddir = [] ++ endif ++ call add(s:recorddir, $'call delete({string(a:dir)},"d")') ++ endfun ++ + " --------------------------------------------------------------------- + " s:RecordInFile: {{{2 + fun! s:RecordInFile(home) +@@ -660,11 +672,11 @@ fun! s:RecordInFile(home) + setlocal ma + $ + if exists("s:recordfile") && exists("s:recorddir") +- let cmd= cmd.s:recordfile."|".s:recorddir ++ let cmd= cmd.join(s:recordfile, '|')."|".join(s:recorddir, '|') + elseif exists("s:recorddir") +- let cmd= cmd.s:recorddir ++ let cmd= cmd.join(s:recorddir, '|') + elseif exists("s:recordfile") +- let cmd= cmd.s:recordfile ++ let cmd= cmd.join(s:recordfile, '|') + else + " call Dret("s:RecordInFile : neither recordfile nor recorddir exist") + return +-- +2.50.1 + diff --git a/meta/recipes-support/vim/vim.inc b/meta/recipes-support/vim/vim.inc index f84d2a9688..3a8b67085a 100644 --- a/meta/recipes-support/vim/vim.inc +++ b/meta/recipes-support/vim/vim.inc @@ -58,6 +58,7 @@ SRC_URI = "git://github.com/vim/vim.git;branch=master;protocol=https \ file://CVE-2026-73074.patch \ file://CVE-2026-73077.patch \ file://CVE-2026-73078.patch \ + file://CVE-2026-73076.patch \ " PV .= ".1683"