CVE-2022-50202

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A vulnerability in the Linux kernel has been resolved, related to a race window of AB-BA deadlock involving the probe count variable. This issue can cause a hung task when resuming from hibernation, specifically when a device is being probed by the hub event() work function. There are three cases that can prevent probe count from dropping to 0, including a device being probed stopping responding, a process emulating a USB device using the /dev/raw-gadget interface stopping responding, and new device probe requests coming in before existing requests complete. The patch mitigates one of these cases by deferring wait for device probe() from snapshot open() to snapshot write() and snapshot ioctl().

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.