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patch 9.0.1740: segfault when reading invalid viminfo file

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Problem: segfault when reading invalid viminfo file
Solution: Check the expected type in the viminfo file

Thanks to @yegappan for the included test.

closes: #12652
closes: #12845

Signed-off-by: Christian Brabandt <cb@256bit.org>
Co-authored-by: Pierre Colin <48397990+Pierre-Colin@users.noreply.github.com>
Co-authored-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Co-authored-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Pierre Colin
2023-08-19 11:56:57 +02:00
committed by Christian Brabandt
parent 38ab19e00f
commit 0a07646845
3 changed files with 27 additions and 0 deletions
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5
src/viminfo.c
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@@ -1804,6 +1804,11 @@ handle_viminfo_register(garray_T *values, int force)
y_ptr->y_array[i] = vp[i + 6].bv_string;
vp[i + 6].bv_string = NULL;
}
else if (vp[i + 6].bv_type != BVAL_STRING)
{
free(y_ptr->y_array);
y_ptr->y_array = NULL;
}
else
y_ptr->y_array[i] = vim_strsave(vp[i + 6].bv_string);
}