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str_to_reg passing NULL to memcpy · neovim/neovim@8170260 · GitHub

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Commit 8170260

fix(ops): str_to_reg passing NULL to memcpy

Required for the tests introduced in v8.2.3601 to pass ASAN when running test_alot.vim. Co-authored-by: erw7 <erw7.github@gmail.com> 
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lines changed +3-1Lines changed: 3 additions & 1 deletion Original file line number Diff line number Diff line change

@@ -5696,7 +5696,9 @@ static void str_to_reg(yankreg_T *y_ptr, MotionType yank_type, const char_u *str

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// When appending, copy the previous line and free it after.

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size_t extra = append ? STRLEN(pp[--lnum]) : 0;

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char_u *s = xmallocz(line_len + extra);

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memcpy(s, pp[lnum], extra);

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if (extra > 0) {

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memcpy(s, pp[lnum], extra);

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}

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memcpy(s + extra, start, line_len);

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size_t s_len = extra + line_len;

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