CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's handling of dibs devices, specifically related to the improper management of the dmb_clientid_arr array, which can lead to use-after-free and double-free conditions. This can result in potential system instability or crashes when the dibs device interrupt handler remains active after the device is removed. Organizations utilizing Linux systems with dibs devices should prioritize addressing this issue to mitigate risks associated with kernel-level vulnerabilities.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: net/dibs: Correct freeing of dmb_clientid_arr A dibs device interrupt handler can be active after dibs_dev_del() and may still access dmb_clientid_arr. (UAF) In case of a failure in dibs_dev_add() being called by dibs_lo_dev_probe() dmb_clientid_arr is freed twice (double free). Free dmb_clientid_arr in dibs_dev_release() after last reference is gone. Note that allocating in dibs_dev_add() instead of dibs_dev_alloc() is ok for now, because no dmbs can be registered before dibs_dev_add().