fix filter regression while keeping (CVE-2026-3606) fixed#1311
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This pull request is to fix #1248
The error was, that the
*datapointer always pointed to the same start address andSAFE_RECALLOCwas then always overwriting more data per iteration except the last.To avoid further confusion, I removed the macro
SAFE_RECALLOC.I tested the fix with ASAN support enabled, and it didn't trigger, since
memcpy()is still not allowed to write the extra byte.