[pull] master from mruby:master#171
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pull[bot] merged 2 commits intosysfce2:masterfrom Jan 3, 2026
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The => pattern matching codegen was doing push() after RAISEIF, even though
RAISEIF never returns. This caused sp to be off by 1 when success and failure
paths joined, resulting in wrong register allocation for subsequent operations.
For string interpolation like "#{ expr => pattern rescue body }", the base
string would be at R2 but STRCAT would incorrectly use R3, causing memory
corruption and crashes.
Test case: %{#{.=>.,. rescue def .()end}} (from oss-fuzz)
Co-authored-by: Claude <noreply@anthropic.com>
The key variable in insertion_sort temporarily holds an array element that's been removed from its slot during the sorting process. When sort_cmp yields to a block that triggers GC, key wasn't protected and could be collected. Use arena save/restore around the loop to avoid arena overflow for large arrays. Test case from oss-fuzz: sort! with block containing rescue. Co-authored-by: Claude <noreply@anthropic.com>
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