Fix kernel copy limits #1658
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Fix kernel copy limits #1658
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jakubno
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Dec 30, 2025
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dobrac
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Dec 30, 2025
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Note
Enforces kernel read/write limits during process-memory copy and adds coverage.
copyProcessMemoryto split inputrangeswithsplitOversizedRanges, batchingunix.RemoteIovecup toIOV_MAXand total bytes up toMAX_RW_COUNT, trackingoffsetcorrectly when marking dirty blocksiov.go(PAGE_SIZE,PAGE_MASK,INT_MAX,MAX_RW_COUNT) to cap per-call bytessplitOversizedRangeshelper and comprehensive unit tests, plus a regression test that copies data exceedingMAX_RW_COUNTwithout errorsWritten by Cursor Bugbot for commit 845c117. This will update automatically on new commits. Configure here.