Paul Aurich

**Name of the Vulnerable Software and Affected Versions** Linux kernel versions prior to 5.4.0-70-generic #78~18.04.1-Ubuntu **Description** The issue is related to the Linux kernel's CIFS component, specifically with the return of an incorrect error code from the smb2 get enc key function. This can lead to a warning when the error percolates back up. The vulnerability may allow an attacker to cause a denial of service. The error is related to the `errseq set` function in the `errseq.c` file. The call trace includes functions such as ` filemap set wb err`, `cifs writepages`, `do writepages`, ` filemap fdatawrite range`, `filemap write and wait`, `cifs setattr`, `notify change`, `utimes common`, `do utimes`, and ` x64 sys utimensat`. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.