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The bbu member of the descriptor must be set to the value standing for uninitialized values before the URB whose completion handler sets bbu is submitted. Otherwise there is a window during which probing can overwrite already retrieved data. Cc: stable <stable@kernel.org> Signed-off-by: Oliver Neukum <oneukum@suse.com> Link: https://patch.msgid.link/20260209143720.1507500-1-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>