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Add handler for fatal errors. Moves device into error state where it
stops responding until the guest resets it.
Guest can send illegal requests where scsi command and usb packet
transfer directions are inconsistent. Use the new usb_msd_fatal_error()
function instead of assert() in that case.
Reported-by: Qiang Liu <cyruscyliu@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Qiang Liu <cyruscyliu@gmail.com>
Message-Id: <20220830063827.813053-3-kraxel@redhat.com>
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Without this the struct has the wrong size: sizeof() evaluates
to 16 instead of 13. In most cases the bug is hidden by the
fact that guests submits a buffer which is exactly 13 bytes
long, so the padding added by the compiler is simply ignored.
But sometimes guests submit a larger buffer and expect a short
transfer, which does not work properly with the wrong struct
size.
Cc: vintagepc404@protonmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Fixes: a917d384ac0 ("SCSI TCQ support.")
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210906045523.1259629-1-kraxel@redhat.com>
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In preparation for splitting the usb-storage.c file move
declarations to the new usb/msd.h header file.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20210312090425.772900-2-kraxel@redhat.com>
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