CVE-2026-93813

The Linux kernel contains a vulnerability in the btrfs file system where a crafted image with a corrupted INODE_REF item can trigger an out-of-boundary access. This occurs because the namelen can exceed the BTRFS_NAME_LEN limit of 255, while the allocated memory for @name remains only 255 bytes. ...

CVE-2026-93813 btrfs: tree-checker: validate INODE_REF's namelen

In the Linux kernel, the following vulnerability has been resolved: btrfs: tree-checker: validate INODEREF's namelen BUG A crafted btrfs image can trigger the following crash: BUG: unable to handle page fault for address: ffffd1dc42884000 PF: supervisor write access in kernel mode PF:...

CVE-2026-93813 btrfs: tree-checker: validate INODE_REF's namelen

In the Linux kernel, the following vulnerability has been resolved: btrfs: tree-checker: validate INODEREF's namelen BUG A crafted btrfs image can trigger the following crash: BUG: unable to handle page fault for address: ffffd1dc42884000 PF: supervisor write access in kernel mode PF:...

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

In the Linux kernel, the following vulnerability has been resolved: nfsd: returns -EINVAL when namelen is 0 When we have a corrupted main.sqlite file in /var/lib/nfs/nfsdcld/, it may result in namelen being 0, which will cause memdupuser to return ZEROSIZEPTR. When we access the name.data that ha...

Linux Distros Unpatched Vulnerability : CVE-2026-89495

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ocfs2: bound namelen in dlmmigraterequesthandler Patch series ocfs2/dlm: bound peer-controlled lengths in the o2dlm. The o2dlm receive handlers trust u8 length...

DEBIAN-CVE-2026-89495

In the Linux kernel, the following vulnerability has been resolved: ocfs2: bound namelen in dlmmigraterequesthandler Patch series "ocfs2/dlm: bound peer-controlled lengths in the o2dlm". The o2dlm receive handlers trust u8 length and count fields from the wire without bounding them, so a node in ...

CVE-2026-89495

In the Linux kernel, the following vulnerability has been resolved: ocfs2: bound namelen in dlmmigraterequesthandler Patch series "ocfs2/dlm: bound peer-controlled lengths in the o2dlm". The o2dlm receive handlers trust u8 length and count fields from the wire without bounding them, so a node in ...

CVE-2026-89495

In the Linux kernel, the following vulnerability has been resolved: ocfs2: bound namelen in dlmmigraterequesthandler Patch series "ocfs2/dlm: bound peer-controlled lengths in the o2dlm". The o2dlm receive handlers trust u8 length and count fields from the wire without bounding them, so a node in ...

UBUNTU-CVE-2026-89495

In the Linux kernel, the following vulnerability has been resolved: ocfs2: bound namelen in dlmmigraterequesthandler Patch series "ocfs2/dlm: bound peer-controlled lengths in the o2dlm". The o2dlm receive handlers trust u8 length and count fields from the wire without bounding them, so a node in ...

CVE-2026-89495 ocfs2: bound namelen in dlm_migrate_request_handler

In the Linux kernel, the following vulnerability has been resolved: ocfs2: bound namelen in dlmmigraterequesthandler Patch series "ocfs2/dlm: bound peer-controlled lengths in the o2dlm". The o2dlm receive handlers trust u8 length and count fields from the wire without bounding them, so a node in ...

CVE-2026-89495

CVE-2026-89495 affects the OCFS2/DLM (o2dlm) subsystem in the Linux kernel . The migration and recovery message handlers trust peer-supplied u8 length fields (namelen, lockname_len, num_locks) without bounding them before passing them to memcpy, resulting in a heap out-of-bounds write of up to ~2...

SUSE CVE-2026-31694

In the Linux kernel, the following vulnerability has been resolved: fuse: reject oversized dirents in page cache fuseadddirenttocache computes a serialized dirent size from the server-controlled namelen field and copies the dirent into a single page-cache page. The existing logic only checks...

CVE-2026-31694

In the Linux kernel, the following vulnerability has been resolved: fuse: reject oversized dirents in page cache fuseadddirenttocache computes a serialized dirent size from the server-controlled namelen field and copies the dirent into a single page-cache page. The existing logic only checks...

CVE-2026-31694 fuse: reject oversized dirents in page cache

In the Linux kernel, the following vulnerability has been resolved: fuse: reject oversized dirents in page cache fuseadddirenttocache computes a serialized dirent size from the server-controlled namelen field and copies the dirent into a single page-cache page. The existing logic only checks...

CVE-2026-31694

In the Linux kernel, the following vulnerability has been resolved: fuse: reject oversized dirents in page cache fuseadddirenttocache computes a serialized dirent size from the server-controlled namelen field and copies the dirent into a single page-cache page. The existing logic only checks...

CVE-2026-31694

Summary: CVE-2026-31694 fixes a Linux kernel FUSE directory-entry handling flaw. A malicious FUSE server could cause a 24-byte overflow by returning a dirent whose serialized size (based on namelen) exceeds a single PAGE_SIZE. The bug arises in fuse_add_dirent_to_cache(), which previously only ch...

PT-2026-36324

Name of the Vulnerable Software and Affected Versions Linux kernel versions 6.16-rc1 and later affected versions not specified Description An out-of-bounds write issue exists in the fuse add dirent to cache function within the FUSE subsystem. The system calculates a serialized directory entry...

Siemens SIMATIC, SCALANCE and RUGGEDCOM Devices NULL Pointer Dereference (CVE-2024-47692)

In the Linux kernel, the following vulnerability has been resolved: nfsd: return -EINVAL when namelen is 0 When we have a corrupted main.sqlite in /var/lib/nfs/nfsdcld/, it may result in namelen being 0, which will cause memdupuser to return ZEROSIZEPTR. When we access the name.data that has been...

[SECURITY] [DLA 4329-1] libfcgi security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-4329-1 [email protected] https://www.debian.org/lts/security/ Thorsten Alteholz October 13, 2025 https://wiki.debian.org/LTS -...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-381973)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-381973 advisory. In the Linux kernel, the following vulnerability has been resolved: nfsd: return -EINVAL when namelen is 0 When we have a corrupted main.sqlite in...