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File _service:tar_scm:backport-patch-9.0.0024-may-access-part-of-typeahead-buf-that-is-not-filled.patch of Package vim
From af043e12d9e5869c597de40b9a2517ae97ac72e7 Mon Sep 17 00:00:00 2001 From: Bram Moolenaar <Bram@vim.org> Date: Sat, 2 Jul 2022 12:08:16 +0100 Subject: [PATCH] patch 9.0.0024: may access part of typeahead buf that isn't filled Problem: May access part of typeahead buf that isn't filled. Solution: Check length of typeahead. --- src/getchar.c | 3 ++- files changed, 2 insertions(+), 1 deletion(-) diff --git a/src/getchar.c b/src/getchar.c index 210a67acad59..12fd1c9146b3 100644 --- a/src/getchar.c +++ b/src/getchar.c @@ -2437,7 +2437,8 @@ handle_mapping( int is_plug_map = FALSE; // If typehead starts with <Plug> then remap, even for a "noremap" mapping. - if (typebuf.tb_buf[typebuf.tb_off] == K_SPECIAL + if (typebuf.tb_len >= 3 + && typebuf.tb_buf[typebuf.tb_off] == K_SPECIAL && typebuf.tb_buf[typebuf.tb_off + 1] == KS_EXTRA && typebuf.tb_buf[typebuf.tb_off + 2] == KE_PLUG) is_plug_map = TRUE;
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