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authorBram Moolenaar <Bram@vim.org>2022-07-02 12:08:16 +0100
committerBram Moolenaar <Bram@vim.org>2022-07-02 12:08:16 +0100
commitaf043e12d9e5869c597de40b9a2517ae97ac72e7 (patch)
tree3d141f1d6710bdcbb634114f54e870dace34fef2 /src/getchar.c
parentf2ce76a8c0290af35e434e38cfe889ed0fec4c6a (diff)
patch 9.0.0024: may access part of typeahead buf that isn't filledv9.0.0024
Problem: May access part of typeahead buf that isn't filled. Solution: Check length of typeahead.
Diffstat (limited to 'src/getchar.c')
-rw-r--r--src/getchar.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/getchar.c b/src/getchar.c
index 210a67acad..12fd1c9146 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;