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patch 9.0.2109: [security]: overflow in nv_z_get_count

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Problem:  [security]: overflow in nv_z_get_count
Solution: break out, if count is too large

When getting the count for a normal z command, it may overflow for large
counts given. So verify, that we can safely store the result in a long.

Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Christian Brabandt
2023-11-14 21:02:30 +01:00
parent ac63787734
commit 58f9befca1
3 changed files with 14 additions and 0 deletions
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5
src/testdir/test_normal.vim
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@@ -4159,4 +4159,9 @@ func Test_normal33_g_cmd_nonblank()
bw!
endfunc
func Test_normal34_zet_large()
" shouldn't cause overflow
norm! z9765405999999999999
endfunc
" vim: shiftwidth=2 sts=2 expandtab