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floppy: don't write kernel-only members to FDRAWCMD ioctl output
Do not leak kernel-only floppy_raw_cmd structure members to userspace. This includes the linked-list pointer and the pointer to the allocated DMA space. Signed-off-by: Matthew Daley <email@example.com> Signed-off-by: Linus Torvalds <firstname.lastname@example.org>
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