Mercurial > vim
view src/create_nvcmdidxs.c @ 33863:3b8089d550eb v9.0.2141
patch 9.0.2141: [security]: buffer-overflow in suggest_trie_walk
Commit: https://github.com/vim/vim/commit/0fb375aae608d7306b4baf9c1f906961f32e2abf
Author: Christian Brabandt <cb@256bit.org>
Date: Wed Nov 29 10:23:39 2023 +0100
patch 9.0.2141: [security]: buffer-overflow in suggest_trie_walk
Problem: [security]: buffer-overflow in suggest_trie_walk
Solution: Check n before using it as index into byts array
Basically, n as an index into the byts array, can point to beyond the byts
array. So let's double check, that n is within the expected range after
incrementing it from sp->ts_curi and bail out if it would be invalid.
Reported by @henices, thanks!
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Sun, 10 Dec 2023 15:16:03 +0100 |
parents | ee1019e59bef |
children |
line wrap: on
line source
/* vi:set ts=8 sts=4 sw=4 noet: * * VIM - Vi IMproved by Bram Moolenaar et al. * * Do ":help uganda" in Vim to read copying and usage conditions. * Do ":help credits" in Vim to see a list of people who contributed. * See README.txt for an overview of the Vim source code. */ /* * create_nvcmdidxs.c: helper program for `make nvcmdidxs` * * This outputs the list of command characters from the nv_cmds table in * decimal form, one per line. */ #include "vim.h" // Declare nv_cmds[]. #include "nv_cmds.h" #include <stdio.h> int main(void) { size_t i; for (i = 0; i < NV_CMDS_SIZE; i++) { int cmdchar = nv_cmds[i]; // Special keys are negative, use the negated value for sorting. if (cmdchar < 0) cmdchar = -cmdchar; printf("%d\n", cmdchar); } return 0; }