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vim-patch:8.1.0068: nasty autocommands can still cause using freed memory

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Problem:    Nasty autocommands can still cause using freed memory.
Solution:   Disallow using setloclist() and setqflist() recursively.
2f82ca7d79
This commit is contained in:
Jan Edmund Lazo 2018-09-30 01:56:39 -04:00
parent cf7e351c24
commit 33ef959814
1 changed files with 6 additions and 0 deletions
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6
src/nvim/eval.c
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@ -14664,6 +14664,7 @@ static void set_qf_ll_list(win_T *wp, typval_T *args, typval_T *rettv)
static char *e_invact = N_("E927: Invalid action: '%s'"); static char *e_invact = N_("E927: Invalid action: '%s'");
const char *title = NULL; const char *title = NULL;
int action = ' '; int action = ' ';
static int recursive = 0;
rettv->vval.v_number = -1; rettv->vval.v_number = -1;
dict_T *d = NULL; dict_T *d = NULL;
@ -14671,6 +14672,9 @@ static void set_qf_ll_list(win_T *wp, typval_T *args, typval_T *rettv)
if (list_arg->v_type != VAR_LIST) { if (list_arg->v_type != VAR_LIST) {
EMSG(_(e_listreq)); EMSG(_(e_listreq));
return; return;
} else if (recursive != 0) {
EMSG(_(e_au_recursive));
return;
} }
typval_T *action_arg = &args[1]; typval_T *action_arg = &args[1];
@ -14712,10 +14716,12 @@ skip_args:
title = (wp ? "setloclist()" : "setqflist()"); title = (wp ? "setloclist()" : "setqflist()");
} }
recursive++;
list_T *const l = list_arg->vval.v_list; list_T *const l = list_arg->vval.v_list;
if (set_errorlist(wp, l, action, (char_u *)title, d) == OK) { if (set_errorlist(wp, l, action, (char_u *)title, d) == OK) {
rettv->vval.v_number = 0; rettv->vval.v_number = 0;
} }
recursive--;
} }
/* /*