The vulnerability of the smb2_lock() function in the fs/smb/server/smb2pdu.c module of the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the smb2lock function in the fs/smb/server/smb2pdu.c module of the Linux operating system is related to improper locking of resources. Exploiting this vulnerability could allow an attacker to cause service failures...

SUSE CVE-2025-21944

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix bug on trap in smb2lock If lock count is greater than 1, flags could be old value. It should be checked with flags of smblock, not flags. It will cause bug-on trap from locksfreelock in error handling routine...

DEBIAN-CVE-2025-21944

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix bug on trap in smb2lock If lock count is greater than 1, flags could be old value. It should be checked with flags of smblock, not flags. It will cause bug-on trap from locksfreelock in error handling routine...

UBUNTU-CVE-2025-21945

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smb2lock If smblock-zerolen has value, -llist of smblock is not delete and flock is old one. It will cause use-after-free on error handling routine...

UBUNTU-CVE-2025-21944

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix bug on trap in smb2lock If lock count is greater than 1, flags could be old value. It should be checked with flags of smblock, not flags. It will cause bug-on trap from locksfreelock in error handling routine...

CVE-2025-21944

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix bug on trap in smb2lock If lock count is greater than 1, flags could be old value. It should be checked with flags of smblock, not flags. It will cause bug-on trap from locksfreelock in error handling routine...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from an incorrect flag check in smb2lock that could lead to a kernel trap...

PT-2025-14326

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue has been identified in the Linux kernel, specifically in the ksmbd component related to smb2 lock. This occurs when smb lock-zero len has a value, and the -llist o...