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view src/proto/diff.pro @ 33864:6e4c686b6b5b v9.0.2142

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patch 9.0.2142: [security]: stack-buffer-overflow in option callback functions Commit: https://github.com/vim/vim/commit/b39b240c386a5a29241415541f1c99e2e6b8ce47 Author: Christian Brabandt <cb@256bit.org> Date: Wed Nov 29 11:34:05 2023 +0100 patch 9.0.2142: [security]: stack-buffer-overflow in option callback functions Problem: [security]: stack-buffer-overflow in option callback functions Solution: pass size of errbuf down the call stack, use snprintf() instead of sprintf() We pass the error buffer down to the option callback functions, but in some parts of the code, we simply use sprintf(buf) to write into the error buffer, which can overflow. So let's pass down the length of the error buffer and use sprintf(buf, size) instead. Reported by @henices, thanks! Signed-off-by: Christian Brabandt <cb@256bit.org>
author Christian Brabandt <cb@256bit.org>
date Sun, 10 Dec 2023 15:16:04 +0100
parents 41484f342f80
children cce6b834635c
line wrap: on
line source

/* diff.c */
void diff_buf_delete(buf_T *buf);
void diff_buf_adjust(win_T *win);
void diff_buf_add(buf_T *buf);
void diff_invalidate(buf_T *buf);
void diff_mark_adjust(linenr_T line1, linenr_T line2, long amount, long amount_after);
void diff_redraw(int dofold);
int diff_internal(void);
void ex_diffupdate(exarg_T *eap);
void ex_diffpatch(exarg_T *eap);
void ex_diffsplit(exarg_T *eap);
void ex_diffthis(exarg_T *eap);
void diff_win_options(win_T *wp, int addbuf);
void ex_diffoff(exarg_T *eap);
void diff_clear(tabpage_T *tp);
int diff_check(win_T *wp, linenr_T lnum);
int diff_check_fill(win_T *wp, linenr_T lnum);
void diff_set_topline(win_T *fromwin, win_T *towin);
int diffopt_changed(void);
int diffopt_horizontal(void);
int diffopt_hiddenoff(void);
int diffopt_closeoff(void);
int diff_find_change(win_T *wp, linenr_T lnum, int *startp, int *endp);
int diff_infold(win_T *wp, linenr_T lnum);
void nv_diffgetput(int put, long count);
void ex_diffgetput(exarg_T *eap);
int diff_mode_buf(buf_T *buf);
int diff_move_to(int dir, long count);
linenr_T diff_get_corresponding_line(buf_T *buf1, linenr_T lnum1);
linenr_T diff_lnum_win(linenr_T lnum, win_T *wp);
void f_diff_filler(typval_T *argvars, typval_T *rettv);
void f_diff_hlID(typval_T *argvars, typval_T *rettv);
/* vim: set ft=c : */