The vulnerability of the ksmbdexpiresession() function in the implementation of the SMB (Server Message Block) network protocol within the kernel of the CIFS/SMB3-server ksmbd in Linux operating systems allows a attacker to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the ksmbdexpiresession function in the fs/smb/server/mgmt/usersession.c module, which is part of the SMB Server Message Block networking implementation within the Linux-based ksmbd CIFS/SMB3 server, relates to the reutilization of previously freed memory due to competitive...