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

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 b1440083f0da
children
line wrap: on
line source

/* register.c */
yankreg_T *get_y_regs(void);
yankreg_T *get_y_register(int reg);
yankreg_T *get_y_current(void);
yankreg_T *get_y_previous(void);
void set_y_current(yankreg_T *yreg);
void set_y_previous(yankreg_T *yreg);
void reset_y_append(void);
int get_expr_register(void);
void set_expr_line(char_u *new_line, exarg_T *eap);
char_u *get_expr_line(void);
int valid_yank_reg(int regname, int writing);
int get_yank_register(int regname, int writing);
void *get_register(int name, int copy);
void put_register(int name, void *reg);
void free_register(void *reg);
int yank_register_mline(int regname);
int do_record(int c);
int get_execreg_lastc(void);
void set_execreg_lastc(int lastc);
int do_execreg(int regname, int colon, int addcr, int silent);
int insert_reg(int regname, int literally_arg);
int get_spec_reg(int regname, char_u **argp, int *allocated, int errmsg);
int cmdline_paste_reg(int regname, int literally_arg, int remcr);
void shift_delete_registers(void);
void yank_do_autocmd(oparg_T *oap, yankreg_T *reg);
void init_yank(void);
void clear_registers(void);
void free_yank_all(void);
int op_yank(oparg_T *oap, int deleting, int mess);
void do_put(int regname, char_u *expr_result, int dir, long count, int flags);
int get_register_name(int num);
int get_unname_register(void);
void ex_display(exarg_T *eap);
void dnd_yank_drag_data(char_u *str, long len);
char_u get_reg_type(int regname, long *reglen);
char_u *get_reg_contents(int regname, int flags);
void write_reg_contents(int name, char_u *str, int maxlen, int must_append);
void write_reg_contents_lst(int name, char_u **strings, int maxlen, int must_append, int yank_type, long block_len);
void write_reg_contents_ex(int name, char_u *str, int maxlen, int must_append, int yank_type, long block_len);
void str_to_reg(yankreg_T *y_ptr, int yank_type, char_u *str, long len, long blocklen, int str_list);
/* vim: set ft=c : */