patch 9.0.2141: [security]: buffer-overflow in suggest_trie_walk Commit: https://github.com/vim/vim/commit/0fb375aae608d7306b4baf9c1f906961f32e2abf Author: Christian Brabandt <cb@256bit.org> Date: Wed Nov 29 10:23:39 2023 +0100 patch 9.0.2141: [security]: buffer-overflow in suggest_trie_walk Problem: [security]: buffer-overflow in suggest_trie_walk Solution: Check n before using it as index into byts array Basically, n as an index into the byts array, can point to beyond the byts array. So let's double check, that n is within the expected range after incrementing it from sp->ts_curi and bail out if it would be invalid. Reported by @henices, thanks! Signed-off-by: Christian Brabandt <cb@256bit.org>

|<+0#4040ff13#ffffff0@2| +0#af5f00255&|a+0#0000000&@27| @7
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| +0#af5f00255&|1|3| | +0#0000000&@35
| +0#af5f00255&|1|4| |b+1#0000000&@1|b+0&&@1| @31
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| +0#af5f00255&|1|6| | +0#0000000&@35
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|/|b@1> @36