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patch 8.2.2977: crash when using a null function reference

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Problem:    Crash when using a null function reference. (Naohiro Ono)
Solution:   Check for an invalid function name. (closes #8367)
This commit is contained in:
Bram Moolenaar
2021-06-12 12:16:55 +02:00
parent 8de901e1f1
commit 22db0d549f
4 changed files with 15 additions and 1 deletions
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8
src/eval.c
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@@ -3772,7 +3772,14 @@ call_func_rettv(
s = partial_name(pt);
}
else
{
s = functv.vval.v_string;
if (s == NULL || *s == NUL)
{
emsg(_(e_empty_function_name));
goto theend;
}
}
}
else
s = (char_u *)"";
@@ -3786,6 +3793,7 @@ call_func_rettv(
funcexe.basetv = basetv;
ret = get_func_tv(s, -1, rettv, arg, evalarg, &funcexe);
theend:
// Clear the funcref afterwards, so that deleting it while
// evaluating the arguments is possible (see test55).
if (evaluate)