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_GETCLUS (7Eh) fills the buffer with 64 bytes instead of the expected 16 bytes #145

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nataliapc opened this issue Jan 10, 2025 · 1 comment · May be fixed by #149
Open

_GETCLUS (7Eh) fills the buffer with 64 bytes instead of the expected 16 bytes #145

nataliapc opened this issue Jan 10, 2025 · 1 comment · May be fixed by #149
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bug Something isn't working
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v2.1.3

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@nataliapc
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_GETCLUS fills 64 bytes of the provided buffer instead of the expected 16 bytes.
The extra 48 bytes are filled with zeros.

Checked with:

  • Nextor 2.1.1b1
  • Nextor 2.1.2
@Konamiman Konamiman added the bug Something isn't working label Jan 19, 2025
@Konamiman
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Konamiman commented Jan 25, 2025 •
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Hi, this is actually a bug in NEXTOR.SYS. If you invoke the function call directly in the kernel (via call 0F37Dh) you should get only the expected 16 bytes. I'll fix this, of course, but here goes a workaround to use meanwhile.

@Konamiman Konamiman added this to the v2.1.3 milestone Jan 25, 2025
@Konamiman Konamiman linked a pull request Jan 25, 2025 that will close this issue
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Fix _GETCLUS copying 64 bytes of data instead of 16 Konamiman/Nextor
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@Konamiman @nataliapc