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patch 8.0.1047: buffer overflow in Ruby

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Problem:    Buffer overflow in Ruby.
Solution:   Allocate one more byte. (Dominique Pelle)
This commit is contained in:
Bram Moolenaar
2017-09-03 15:17:48 +02:00
parent ae96b8d058
commit 00ccf54630
2 changed files with 3 additions and 1 deletions
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2
src/if_ruby.c
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@@ -984,7 +984,7 @@ static VALUE vim_message(VALUE self UNUSED, VALUE str)
if (RSTRING_LEN(str) > 0)
{
/* Only do this when the string isn't empty, alloc(0) causes trouble. */
buff = ALLOCA_N(char, RSTRING_LEN(str));
buff = ALLOCA_N(char, RSTRING_LEN(str) + 1);
strcpy(buff, RSTRING_PTR(str));
p = strchr(buff, '\n');
if (p) *p = '\0';