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-rw-r--r--src/testdir/test_xxd.vim16
1 files changed, 16 insertions, 0 deletions
diff --git a/src/testdir/test_xxd.vim b/src/testdir/test_xxd.vim
index 7a2771e..a91a1fc 100644
--- a/src/testdir/test_xxd.vim
+++ b/src/testdir/test_xxd.vim
@@ -411,6 +411,22 @@ func Test_xxd_max_cols()
endfor
endfunc
+
+" This used to trigger a buffer overflow (#14738)
+func Test_xxd_buffer_overflow()
+ CheckUnix
+ if system('file ' .. s:xxd_cmd) =~ '32-bit'
+ throw 'Skipped: test only works on 64-bit architecture'
+ endif
+ new
+ let input = repeat('A', 256)
+ call writefile(['-9223372036854775808: ' . repeat("\e[1;32m41\e[0m ", 256) . ' ' . repeat("\e[1;32mA\e[0m", 256)], 'Xxdexpected', 'D')
+ exe 'r! printf ' . input . '| ' . s:xxd_cmd . ' -Ralways -g1 -c256 -d -o 9223372036854775808 > Xxdout'
+ call assert_equalfile('Xxdexpected', 'Xxdout')
+ call delete('Xxdout')
+ bwipe!
+endfunc
+
" -c0 selects the format specific default column value, as if no -c was given
" except for -ps, where it disables extra newlines
func Test_xxd_c0_is_def_cols()