patch 9.0.1847: [security] potential oob write in do_addsub() Commit: https://github.com/vim/vim/commit/889f6af37164775192e33b233a90e86fd3df0f57 Author: Christian Brabandt <cb@256bit.org> Date: Sat Sep 2 19:43:33 2023 +0200 patch 9.0.1847: [security] potential oob write in do_addsub() Problem: potential oob write in do_addsub() Solution: don't overflow buf2, check size in for loop() Signed-off-by: Christian Brabandt <cb@256bit.org>

|1+0&#ffffff0@1| @57
>2@1| @57
| +0#ffffff16#e000002|B|e|l|o|w| |t|h|e| |l|i|n|e| | +0#0000000#ffffff0@43
|~+0#4040ff13&| @58
|~| @58
|~| @58
|~| @58
| +0#0000000&@41|2|,|1| @10|A|l@1|