UBUNTU-CVE-2025-38437

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix potential use-after-free in oplock/lease break ack If ksmbdiovpinrsp return error, use-after-free can happen by accessing opinfo-state and opinfoput and ksmbdfdput could called twice...

CVE-2025-38437 ksmbd: fix potential use-after-free in oplock/lease break ack

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix potential use-after-free in oplock/lease break ack If ksmbdiovpinrsp return error, use-after-free can happen by accessing opinfo-state and opinfoput and ksmbdfdput could called twice...

CVE-2025-38437

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix potential use-after-free in oplock/lease break ack If ksmbdiovpinrsp return error, use-after-free can happen by accessing opinfo-state and opinfoput and ksmbdfdput could called twice...

PT-2025-33570

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A race condition in cifs oplock break can lead to a use-after-free of the cinode structure during unmounting. This occurs when umount releases its reference to the superblock, triggeri...

ksmbd: fix use-after-free in smb_break_all_levII_oplock()

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The vulnerability of the smb20_oplock_break_ack() function in the Linux file system support module fs/ksmbd/smb2pdu.c allows a attacker to cause a service failure.

The vulnerability of the smb20oplockbreakack function in the fs/ksmbd/smb2pdu.c module of the Linux file system support module is related to the reutilization of previously released memory. Exploiting this vulnerability can allow an attacker to cause a service failure...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevents the connection from being released during the oplock break notification. The ksmbdwork object can be freed after the connection is released. The rcount of ksmbdconn is incremented to indicate that the requests are...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: smb/server: fixed a potential null-ptr-deref of leasectxinfo in smb2open A null-ptr-deref will occur when reqoplevel == SMB2OPLOCKLEVELLEASE and parseleasestate returns NULL. This issue was fixed by checking whether...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ksmbd: A use-after-free issue was fixed in smbbreakalllevIIoplock. There is a section within smbbreakalllevIIoplock that can cause race conditions when unlocking during the loop. This patch uses a read lock to protect the entire...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The use-of-free variable issue in ksmbdfreeworkstruct has been fixed. As a result, the interimentry of ksmbdwork can be deleted after the oplock is released. We no longer need to manage this using a linked list. The interi...

SUSE CVE-2025-37776

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smbbreakalllevIIoplock There is a room in smbbreakalllevIIoplock that can cause racy issues when unlocking in the middle of the loop. This patch use read lock to protect whole loop...

DEBIAN-CVE-2025-37776

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smbbreakalllevIIoplock There is a room in smbbreakalllevIIoplock that can cause racy issues when unlocking in the middle of the loop. This patch use read lock to protect whole loop...

UBUNTU-CVE-2025-37776

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smbbreakalllevIIoplock There is a room in smbbreakalllevIIoplock that can cause racy issues when unlocking in the middle of the loop. This patch use read lock to protect whole loop...

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 a post-release reuse issue in smbbreakalllevIIoplock...

SUSE CVE-2025-22074

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix rcount dec/increment mismatch rcount is only increased when there is an oplock break wait, so rcount inc/decrement are not paired. This can cause rcount to become negative, which can lead to a problem where the ksmbd...

DEBIAN-CVE-2025-22074

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix rcount dec/increment mismatch rcount is only increased when there is an oplock break wait, so rcount inc/decrement are not paired. This can cause rcount to become negative, which can lead to a problem where the ksmbd...

CVE-2025-22074 ksmbd: fix r_count dec/increment mismatch

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix rcount dec/increment mismatch rcount is only increased when there is an oplock break wait, so rcount inc/decrement are not paired. This can cause rcount to become negative, which can lead to a problem where the ksmbd...

CVE-2025-22074

The CVE-2025-22074 issue concerns the ksmbd component in the Linux kernel where r_count increments are not paired with decrements except when an oplock break wait occurs. This can make r_count go negative, which may prevent the ksmbd thread from terminating. Technical detail confirmed in connecte...

PT-2025-18457

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue in the smb break all levII oplock function can cause racy issues when unlocking in the middle of the loop. This is resolved by using a read lock to protect the who...

SUSE CVE-2025-21967

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbdfreeworkstruct -interimentry of ksmbdwork could be deleted after oplock is freed. We don't need to manage it with linked list. The interim request could be immediately sent whenever a oplock brea...