don't access void* out of alignment in refc GC to avoid UB (#21560)

2026-01-10 15:04:59 +00:00 · 2023-03-22 22:05:20 +01:00
parent d84b02f0e0
commit e8a70ff179
1 changed files with 0 additions and 1 deletions
--- a/lib/system/gc_common.nim
+++ b/lib/system/gc_common.nim
@@ -391,7 +391,6 @@ else:
            let regEnd = sp +% sizeof(registers)
            while sp <% regEnd:
              gcMark(gch, cast[PPointer](sp)[])
-              gcMark(gch, cast[PPointer](sp +% sizeof(pointer) div 2)[])
              sp = sp +% sizeof(pointer)
        # Make sure sp is word-aligned
        sp = sp and not (sizeof(pointer) - 1)