CVE-2026-48792 pam_usb: pusb_has_virtual_input_device() silently discards EACCES, disabling remote desktop detection under non-root execution

pamusb provides hardware authentication for Linux using ordinary removable media. Prior to 0.9.1, src/evdev.c silently ignores EACCES errors when opening /dev/input/event nodes, causing pusbhasvirtualinputdevice to return 0 no virtual devices found even when every open call failed due to...