Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ocfs2: A double-free operation was corrected in userclusterconnect. userclusterdisconnect frees "conn-ccprivate", which is actually "lc". However, the error handling frees "lc" again. Setting "lc" to NULL in this case can prevent...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013813)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013813 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix double free in userclusterconnect userclusterdisconnect frees conn-ccprivate which is ...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011006)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011006 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix double free in userclusterconnect userclusterdisconnect frees conn-ccprivate which is ...

Unity Linux 20.1050e / 20.1060e Security Update: kernel (UTSA-2026-007624)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007624 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix double free in userclusterconnect userclusterdisconnect frees conn-ccprivate which is ...

ocfs2: fix double free in user_cluster_connect()

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SUSE CVE-2025-40055

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix double free in userclusterconnect userclusterdisconnect frees "conn-ccprivate" which is "lc" but then the error handling frees "lc" a second time. Set "lc" to NULL on this path to avoid a double free...

UBUNTU-CVE-2025-40055

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix double free in userclusterconnect userclusterdisconnect frees "conn-ccprivate" which is "lc" but then the error handling frees "lc" a second time. Set "lc" to NULL on this path to avoid a double free...

EUVD-2025-36473

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix double free in userclusterconnect userclusterdisconnect frees "conn-ccprivate" which is "lc" but then the error handling frees "lc" a second time. Set "lc" to NULL on this path to avoid a double free...

CVE-2025-40055

CVE-2025-40055 affects the Linux kernel OCFS2, describing a double-free in the path handling user_cluster_connect(). The root cause is that user_cluster_disconnect() frees the same memory as conn->cc_private (the lc object) and the error handling frees lc again, leading to a double-free. The d...

CVE-2025-40055 ocfs2: fix double free in user_cluster_connect()

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix double free in userclusterconnect userclusterdisconnect frees "conn-ccprivate" which is "lc" but then the error handling frees "lc" a second time. Set "lc" to NULL on this path to avoid a double free...

CVE-2025-40055 ocfs2: fix double free in user_cluster_connect()

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix double free in userclusterconnect userclusterdisconnect frees "conn-ccprivate" which is "lc" but then the error handling frees "lc" a second time. Set "lc" to NULL on this path to avoid a double free...

CVE-2025-40055

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix double free in userclusterconnect userclusterdisconnect frees "conn-ccprivate" which is "lc" but then the error handling frees "lc" a second time. Set "lc" to NULL on this path to avoid a double free...

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 Linux kernel that stems from a double release issue in the userclusterconnect function...

PT-2025-44123

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw within the ocfs2 component related to a double free in the user cluster connect function. Specifically, user cluster disconnect frees a memory region, an...