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patch 8.1.2091: double free when memory allocation fails

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Problem:    Double free when memory allocation fails. (Zu-Ming Jiang)
Solution:   Use VIM_CLEAR() instead of vim_free(). (closes #4991)
This commit is contained in:
Bram Moolenaar
2019-09-28 15:24:00 +02:00
parent 2e47cab715
commit 0f1c6708fd
2 changed files with 4 additions and 2 deletions
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4
src/getchar.c
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@@ -1296,11 +1296,11 @@ free_typebuf(void)
if (typebuf.tb_buf == typebuf_init)
internal_error("Free typebuf 1");
else
vim_free(typebuf.tb_buf);
VIM_CLEAR(typebuf.tb_buf);
if (typebuf.tb_noremap == noremapbuf_init)
internal_error("Free typebuf 2");
else
vim_free(typebuf.tb_noremap);
VIM_CLEAR(typebuf.tb_noremap);
}
/*