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>

|o+0&#ffffff0|n|e| @56
|f+0&#ffff4012|o@1| +0&#ffffff0@56
|b|a|r| @56
|b|a|z| @56
|f+0&#ffff4012|o@1| +0&#ffffff0|t|h|e| >f+0&#4040ff13|o@1| +0&#ffffff0|a|n|d| |f+0&#ffff4012|o@1| +0&#ffffff0@40
|b|a|r| @56
|~+0#4040ff13&| @58
|~| @58
|/+0#0000000&|f|o@1| @37|5|,|9| @10|A|l@1|