This vulnerability allows remote attackers to execute arbitrary code on affected installations of Linux Kernel. Authentication is not required to exploit this vulnerability, but only systems with ksmbd enabled are vulnerable.
The specific flaw exists within the processing of SMB2_TREE_DISCONNECT commands. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the kernel.
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 2155948]
There was no shipped kernel version that was seen affected by this problem. These files are not built in our source code.
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):