CVE-2026-97556

The Linux kernel contains a vulnerability in the SMB client where a reference count leak occurs when cifs_sb_tlink() fails, specifically in setups using the "-o multiuser" option. The cifs_oplock_break() function fails to release the file reference in this specific failure path, which can lead to...

The vulnerability of the cifs_oplock_break() function in the fs/smb/client/file.c module of the SMB client support library in Linux kernels allows attackers to compromise the confidentiality, integrity, and accessibility of protected information.

The vulnerability of the cifsoplockbreak function in the fs/smb/client/file.c module of the SMB client support library in Linux operating systems is related to the pointer manipulation. Exploiting this vulnerability allows a remote attacker to compromise the confidentiality, integrity, and...

CVE-2023-54258: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: cifs: fix potential oops in cifsoplockbreak With deferred close we can have closes that race with lease breaks, and so with the current checks for whether to send the lease response, oplockresponse, this can mean that an unmount...

CVE-2025-38527: Use After Free

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-after-free in cifsoplockbreak A race condition can occur in cifsoplockbreak leading to a use-after-free of the cinode structure when unmounting: cifsoplockbreak cifsFileInfoputcfile cifsFileInfoputfinal...