CVE-2026-80644

In the Linux kernel, the following vulnerability has been resolved: ocfs2: don't BUGON an invalid journal dinode BUG A fuzzed OCFS2 image can corrupt the current slot journal dinode while mount is still in progress. The mount path first reports the invalid journal block and then crashes in...

CVE-2026-80638

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix out-of-bounds write in ocfs2removerefcountextent BUG Unlinking a refcounted file whose refcount tree has leaf blocks triggers a fortify panic due to an out-of-bounds write. CAUSE When the last leaf block is removed fro...

EUVD-2026-67520

In the Linux kernel, the following vulnerability has been resolved: ocfs2: don't BUGON an invalid journal dinode BUG A fuzzed OCFS2 image can corrupt the current slot journal dinode while mount is still in progress. The mount path first reports the invalid journal block and then crashes in...

CVE-2026-80644

CVE-2026-80644 affects the OCFS2 filesystem in the Linux kernel. A commit (10995aa2451a) replaced a -EIO return in ocfs2_journal_toggle_dirty() with a BUG_ON(), assuming the journal dinode was already validated. A fuzzed OCFS2 image can corrupt the current slot journal dinode while mount is in pr...

CVE-2026-80638

CVE-2026-80638 is an out-of-bounds write in the Linux kernel's ocfs2 (Oracle Cluster File System 2) subsystem, specifically in ocfs2_remove_refcount_extent() . When the last leaf block is removed from a refcount tree, the function converts the root back to leaf mode via a bulk memset on &rb->r...

EUVD-2026-67514

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix out-of-bounds write in ocfs2removerefcountextent BUG Unlinking a refcounted file whose refcount tree has leaf blocks triggers a fortify panic due to an out-of-bounds write. CAUSE When the last leaf block is removed fro...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ocfs2: Prevent the release of journal inode after journal shutdown. Before calling ocfs2deleteosb, the function ocfs2journalshutdown has already been executed in ocfs2dismountvolume. Therefore, osb-journal must be NULL. As a...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: ocfs2: Fixed a slab-use-after-free issue caused by a dangling pointer dqipriv. When mounting ocfs2 and then remounting it as read-only, a slab-use-after-free occurs after the user uses the syscall to call ocfs2getnextid...

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

In the Linux kernel, the following vulnerabilities have been resolved: ocfs2: The uncached inode fails to enter the group. Syzbot has reported the following BUG: Kernel BUG at fs/ocfs2/uptodate.c:509! … Call Trace: ? diebody+0x5f/0xb0 ? die+0x9e/0xc0 ? dotrap+0x15a/0x3a0 ?...

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-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-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-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...

CVE-2026-72162

A flaw was found in ocfs2, a component of the Linux kernel. On-disk corruption of an inode's embedded extent list can lead to an array-index-out-of-bounds error. This occurs when the lnextfreerec value is zero or exceeds lcount during a write operation to the affected file. A local attacker with...

CVE-2026-72161

A flaw was found in the ocfs2 component of the Linux kernel. A local user could trigger a NULL pointer dereference during the unmount process of an ocfs2 filesystem. This occurs because the system attempts to access a freed journal pointer, leading to a system crash and a Denial of Service DoS...

CVE-2026-72160

A flaw was found in ocfs2 Oracle Cluster File System version 2 in the Linux kernel. This vulnerability arises from insufficient validation of on-disk inode metadata, specifically the imode type bits. A local attacker could exploit this by crafting a malformed disk inode with a non-canonical POSIX...

Linux Distros Unpatched Vulnerability : CVE-2026-74351

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ocfs2: rebase copied fsdlm LVB pointers in lockingstate The lockingstate debugfs iterator snapshots struct ocfs2lockres by value under ocfs2dlmtrackinglock and...

Linux Distros Unpatched Vulnerability : CVE-2026-72160

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ocfs2: reject dinodes with non-canonical imode type Patch series ocfs2: harden inode validators against forged metadata, v2. This series adds three structural...