USN-8644-3 linux-azure, linux-azure-4.15, linux-azure-fips vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - File systems infrastructure; - OCFS2 file system; - B.A.T.M.A.N. meshing protocol; - SCTP protocol; - TIPC protocol...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-104565)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-104565 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: reject FITRIM ranges shorter than a cluster ocfs2trimmainbm trims the global bitmap in...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098707)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098707 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix out-of-bounds write in ocfs2writeendinline KASAN reports a use-after-free write of 408...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098695)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098695 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: validate ltreedepth to avoid out-of-bounds access The ltreedepth field is 16-bit le16, but...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-104583)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-104583 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: avoid moving extents to occupied clusters For non-auto OCFS2IOCMOVEEXT operations, userspa...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098817)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098817 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: split transactions in dio completion to avoid credit exhaustion During ocfs2 dio operation...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-104586)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-104586 advisory. In the Linux kernel, the following vulnerability has been resolved: ocfs2: reject dinodes with non-canonical imode type Patch series ocfs2: harden inode validators...

Ocfs2 File System Heap Buffer Overflow DoS

The vulnerability of the ocfs2fault function in the fs/ocfs2/mmap.c file of the Ocfs2 file system in the Linux operating system is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ocfs2: Added a NULL check for osb-journal in ocfs2checkpoint inode. During unmount, ocfs2journalshutdown frees the journal and sets osb-journal to NULL. Later, when VFS evicts the remaining cached inodes, the calls to ocfs2evict...

USN-8644-2: Linux kernel (GCP) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - File systems infrastructure; - OCFS2 file system; - B.A.T.M.A.N. meshing protocol; - SCTP protocol; - TIPC protocol...

USN-8644-2 linux-gcp, linux-gcp-4.15, linux-gcp-fips vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - File systems infrastructure; - OCFS2 file system; - B.A.T.M.A.N. meshing protocol; - SCTP protocol; - TIPC protocol...

CVE-2026-74351

A flaw was found in the ocfs2 component of the Linux kernel. The lockingstate debugfs iterator incorrectly handles pointers to lock resource blocks LVB. When the original lock resource is freed while the iterator still holds a pointer to it, a use-after-free vulnerability occurs. This can lead to...

CVE-2026-74350

A flaw was found in ocfs2, the Oracle Cluster File System version 2. A local attacker could create a specially crafted fast symbolic link symlink with an incorrect inode size or a missing null character terminator. When the kernel attempts to read this malformed symlink, it can read beyond the...

CVE-2026-74349

A flaw was found in the Linux kernel's OCFS2 Oracle Cluster File System version 2 component. A local attacker with appropriate permissions could trigger an issue during filesystem trimming operations. By providing a specific range for trimming that is smaller than expected, an internal calculatio...

CVE-2026-74348

A flaw was found in the Linux kernel's OCFS2 Distributed Lock Manager DLM. A local user could exploit a use-after-free vulnerability in the lockingstate debugfs interface. This occurs because the debuglockresopen function does not correctly handle cases where a reference to a DLM context cannot b...

USN-8646-1 linux vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - OCFS2 file system; - B.A.T.M.A.N. meshing protocol; - Netfilter; - SCTP protocol; CVE-2026-52914, CVE-2026-53002,...

USN-8646-1: Linux kernel vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - OCFS2 file system; - B.A.T.M.A.N. meshing protocol; - Netfilter; - SCTP protocol; CVE-2026-52914, CVE-2026-53002,...

USN-8644-1: Linux kernel vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - File systems infrastructure; - OCFS2 file system; - B.A.T.M.A.N. meshing protocol; - SCTP protocol; - TIPC protocol...

CVE-2026-72159

A flaw was found in the OCFS2 file system within the Linux kernel. This vulnerability occurs when processing specially crafted file system metadata, specifically non-inline dinodes that report a non-zero file size but zero allocated clusters. An attacker could potentially create a malformed file...

CVE-2026-72164

A flaw was found in the ocfs2 component of the Linux kernel. A local user can exploit a vulnerability in the ocfs2moveextent function when performing OCFS2IOCMOVEEXT operations. This issue allows file data to be copied into a disk cluster that is already occupied by another file, leading to data...