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Type: Bug
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Resolution: Works as Designed
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Priority: Major - P3
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None
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Affects Version/s: 8.0.0-rc0
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Component/s: Internal Code
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Storage Execution
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ALL
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v8.0
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Execution Team 2024-04-29
Out-of-bounds read
Incorrect values read from a different memory region will cause incorrect computations. Out-of-bounds read from a buffer
/src/mongo/db/storage/key_string.cpp:1436: OVERRUN 144328 Function call "mongo::countLeadingZeros64(value)" may return 64.
/src/mongo/db/storage/key_string.cpp:1436: OVERRUN 144328 Assigning: "bytesNeeded" = "(64 - mongo::countLeadingZeros64(value) + 7) / 8". The value of "bytesNeeded" is now 0.
/src/mongo/db/storage/key_string.cpp:1440: OVERRUN 144328 Assigning: "firstUsedByte" = "reinterpret_cast<char const *>(&value + 1) - bytesNeeded". "firstUsedByte" now points to byte 8 of "value" (which consists of 8 bytes).