Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-002614)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002614 advisory. The filesystem layer in the Linux kernel before 4.5.5 proceeds with post-rename operations after an OverlayFS file is renamed to a self-hardlink, which allows local...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003147)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003147 advisory. An issue was discovered in the Linux kernel before 4.8. Incorrect access checking in overlayfs mounts could be used by local attackers to modify or truncate files in...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-000617)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000617 advisory. The filesystem layer in the Linux kernel before 4.5.5 proceeds with post-rename operations after an OverlayFS file is renamed to a self-hardlink, which allows local...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001088)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001088 advisory. The ovlsetattr function in fs/overlayfs/inode.c in the Linux kernel through 4.3.3 attempts to merge distinct setattr operations, which allows local users to bypass...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001494)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001494 advisory. A flaw was found in the Linux kernel's OverlayFS subsystem in the way the user mounts the TmpFS filesystem with OverlayFS. This flaw allows a local user to gain acce...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: Squashfs: negative file sizes are now rejected in squashfsread inode. Syskaller reports a “WARNING in ovlcopyupfile” in overlayfs. This warning occurs because the underlying Squashfs file system returns a file with a negative...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: fs/notify: Calling intotifyshowfdinfo on a file descriptor that watches an overlayfs inode, while the overlayfs is being unmounted, can lead to dereferencing a NULL pointer. This issue was discovered by syzkaller. Race Condition...

CVE-2025-40237

No description is available for this CVE. Mitigation Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability...

CVE-2025-61729 vulnerabilities

Vulnerabilities for packages: gatekeeper-fips, distribution-fips, kube-logging-operator, logstash, timestamp-authority-fips, fuse-overlayfs-snapshotter, karpenter, kuberlr, azurefile-csi, terraform-provider-tls-fips, kargo, kubernetes-csi-external-provisioner-fips, redka,...

SUSE CVE-2025-40237

In the Linux kernel, the following vulnerability has been resolved: fs/notify: call exportfsencodefid with sumount Calling intotifyshowfdinfo on fd watching an overlayfs inode, while the overlayfs is being unmounted, can lead to dereferencing NULL ptr. This issue was found by syzkaller. Race...

CVE-2025-61729 vulnerabilities

Vulnerabilities for packages: hello-world-golang, kpt, nri-jmx, sbom-convert, rke2-cloud-provider, oras, guac, hydra, rancher-system-upgrade-controller, prometheus-operator, runc, podman, otel-cli, influx, kapp, go-md2man, dask-gateway, nodetaint, rancher-telemetry, github-mcp-server, opa, hcloud...

CVE-2025-40237

In the Linux kernel, the following vulnerability has been resolved: fs/notify: call exportfsencodefid with sumount Calling intotifyshowfdinfo on fd watching an overlayfs inode, while the overlayfs is being unmounted, can lead to dereferencing NULL ptr. This issue was found by syzkaller. Race...

CVE-2025-40237

CVE-2025-40237 is a Linux kernel vulnerability affecting the inotify/fs notify path. The issue occurs when an inotify watch on an overlayfs inode is processed during unmount, leading to a NULL pointer dereference via show_mark_fhandle() -> exportfs_encode_fid() -> ovl_encode_fh() -> ovl_...

CVE-2025-40237 fs/notify: call exportfs_encode_fid with s_umount

In the Linux kernel, the following vulnerability has been resolved: fs/notify: call exportfsencodefid with sumount Calling intotifyshowfdinfo on fd watching an overlayfs inode, while the overlayfs is being unmounted, can lead to dereferencing NULL ptr. This issue was found by syzkaller. Race...

TencentOS Server 2: kernel (TSSA-2024:0557)

The version of Tencent Linux installed on the remote TencentOS Server 2 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2024:0557 advisory. Package updates are available for TencentOS Server 2 that fix the following vulnerabilities...

SUSE CVE-2025-40200

In the Linux kernel, the following vulnerability has been resolved: Squashfs: reject negative file sizes in squashfsreadinode Syskaller reports a "WARNING in ovlcopyupfile" in overlayfs. This warning is ultimately caused because the underlying Squashfs file system returns a file with a negative...

DEBIAN-CVE-2025-40200

In the Linux kernel, the following vulnerability has been resolved: Squashfs: reject negative file sizes in squashfsreadinode Syskaller reports a "WARNING in ovlcopyupfile" in overlayfs. This warning is ultimately caused because the underlying Squashfs file system returns a file with a negative...

AZL-70073 CVE-2025-40200 affecting package kernel for versions less than 6.6.117.1-1

In the Linux kernel, the following vulnerability has been resolved: Squashfs: reject negative file sizes in squashfsreadinode Syskaller reports a "WARNING in ovlcopyupfile" in overlayfs. This warning is ultimately caused because the underlying Squashfs file system returns a file with a negative...

UBUNTU-CVE-2025-40200

In the Linux kernel, the following vulnerability has been resolved: Squashfs: reject negative file sizes in squashfsreadinode Syskaller reports a "WARNING in ovlcopyupfile" in overlayfs. This warning is ultimately caused because the underlying Squashfs file system returns a file with a negative...

CVE-2025-40200 Squashfs: reject negative file sizes in squashfs_read_inode()

In the Linux kernel, the following vulnerability has been resolved: Squashfs: reject negative file sizes in squashfsreadinode Syskaller reports a "WARNING in ovlcopyupfile" in overlayfs. This warning is ultimately caused because the underlying Squashfs file system returns a file with a negative...