[Bug 219190] New: Kernel USB device namespacing

[Bug 219190] New: Kernel USB device namespacing

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=219190

            Bug ID: 219190
           Summary: Kernel USB device namespacing
           Product: Virtualization
           Version: unspecified
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: kvm
          Assignee: virtualization_kvm@kernel-bugs.osdl.org
          Reporter: weiss_julian@outlook.de
        Regression: No

When trying to bring a Rpi Compute Module 4 into flashable state. One has to
connect the CM4 via USB to e.g. another Linux PC and exeecute rpiboot. Rpiboot
will probe for the correct USB device, writes something to it, makes the device
reconnect the USB connection and writes to the device again. 

When executing the rpiboot tool from within a podman container, which is
started in privileged mode, rpiboot will successful probe the device and
execute the first write. However, after resetting the device, strace shows
rpiboot is about to open an USB device, which does not exist inside the
container. When checking the hosts filesystem, the USB device exists at that
specific location.

How is it possible that my container knows the correct location of the outsides
USB device, but is unable to find the filename of the USB device inside the
container?

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