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vim-patch:9.0.1378: illegal memory access when using virtual editing (#22527)

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Problem:    Illegal memory access when using virtual editing.
Solution:   Make sure "startspaces" is not negative.

c99cbf8f28

Co-authored-by: Bram Moolenaar <Bram@vim.org>
This commit is contained in:
zeertzjq
2023-03-05 08:08:04 +08:00
committed by GitHub
parent 39842be8cd
commit 089f962d6a
2 changed files with 14 additions and 2 deletions
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6
src/nvim/ops.c
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@@ -2684,8 +2684,10 @@ static void op_yank_reg(oparg_T *oap, bool message, yankreg_T *reg, bool append)
getvcol(curwin, &oap->start, &cs, NULL, &ce);
if (ce != cs && oap->start.coladd > 0) {
// Part of a tab selected -- but don't double-count it.
bd.startspaces = (ce - cs + 1)
- oap->start.coladd;
bd.startspaces = (ce - cs + 1) - oap->start.coladd;
if (bd.startspaces < 0) {
bd.startspaces = 0;
}
startcol++;
}
}