Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6820-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6820-1 advisory. It was discovered that the ATA over Ethernet AoE driver in the Linux kernel contained a race condition, leading to a use-after-free...

Ubuntu 22.04 LTS : Linux kernel vulnerabilities (USN-6821-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6821-1 advisory. It was discovered that the ATA over Ethernet AoE driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. An...

Ubuntu 24.04 LTS : Linux kernel vulnerabilities (USN-6817-1)

The remote Ubuntu 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6817-1 advisory. Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not properly handle certain error conditions, leading to a NULL pointer dereferenc...

CVE-2024-26885

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix DEVMAPHASH overflow check on 32-bit arches The devmap code allocates a number hash buckets equal to the next power of two of the maxentries value provided when creating the map. When rounding up to the next power of two,...

CVE-2024-26885 bpf: Fix DEVMAP_HASH overflow check on 32-bit arches

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix DEVMAPHASH overflow check on 32-bit arches The devmap code allocates a number hash buckets equal to the next power of two of the maxentries value provided when creating the map. When rounding up to the next power of two,...

CVE-2024-26885

CVE-2024-26885 – Linux kernel DEVMAP_HASH overflow on 32-bit arches : The issue arises in devmap hash bucket calculation for max_entries, where the code computes the next power of two for the bucket count and stores it in a 32-bit variable. On 32-bit architectures, the rounding up can overflow mi...

CVE-2024-26885 bpf: Fix DEVMAP_HASH overflow check on 32-bit arches

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix DEVMAPHASH overflow check on 32-bit arches The devmap code allocates a number hash buckets equal to the next power of two of the maxentries value provided when creating the map. When rounding up to the next power of two,...

CVE-2024-26885: Improper Restriction of Operations within the Bounds of a Memory Buffer

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix DEVMAPHASH overflow check on 32-bit arches The devmap code allocates a number hash buckets equal to the next power of two of the maxentries value provided when creating the map. When rounding up to the next power of two,...

PT-2024-3393

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to an integer overflow in the devmap code of the Linux kernel's BPF subsystem. This occurs when the devmap code allocates a number of hash buckets equal to the nex...

Fedora 39 : xen (2024-e527e6fd08)

The remote Fedora 39 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-e527e6fd08 advisory. arm32: The cache may not be properly cleaned/invalidated take two XSA-447, CVE-2023-46837 pci: phantom functions assigned to incorrect contexts...

Fedora 38 : xen (2024-4b2cf8c375)

The remote Fedora 38 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2024-4b2cf8c375 advisory. arm32: The cache may not be properly cleaned/invalidated take two XSA-447, CVE-2023-46837 pci: phantom functions assigned to incorrect contexts...

Design/Logic Flaw

Closing of an event channel in the Linux kernel can result in a deadlock. This happens when the close is being performed in parallel to an unrelated Xen console action and the handling of a Xen console interrupt in an unprivileged guest. The closing of an event channel is e.g. triggered by remova...

CVE-2023-46837 arm32: The cache may not be properly cleaned/invalidated (take two)

Arm provides multiple helpers to clean & invalidate the cache for a given region. This is, for instance, used when allocating guest memory to ensure any writes such as the ones during scrubbing have reached memory before handing over the page to a guest. Unfortunately, the arithmetics in the...

CVE-2023-46837 arm32: The cache may not be properly cleaned/invalidated (take two)

Arm provides multiple helpers to clean & invalidate the cache for a given region. This is, for instance, used when allocating guest memory to ensure any writes such as the ones during scrubbing have reached memory before handing over the page to a guest. Unfortunately, the arithmetics in the...

CVE-2023-34324

Closing of an event channel in the Linux kernel can result in a deadlock. This happens when the close is being performed in parallel to an unrelated Xen console action and the handling of a Xen console interrupt in an unprivileged guest. The closing of an event channel is e.g. triggered by remova...

CVE-2023-34321 arm32: The cache may not be properly cleaned/invalidated

Arm provides multiple helpers to clean & invalidate the cache for a given region. This is, for instance, used when allocating guest memory to ensure any writes such as the ones during scrubbing have reached memory before handing over the page to a guest. Unfortunately, the arithmetics in the...

arm32: The cache may not be properly cleaned/invalidated (take two)

ISSUE DESCRIPTION Arm provides multiple helpers to clean & invalidate the cache for a given region. This is, for instance, used when allocating guest memory to ensure any writes such as the ones during scrubbing have reached memory before handing over the page to a guest. Unfortunately, the...

SUSE SLED15 / SLES15 / openSUSE 15 Security Update : xen (SUSE-SU-2023:4476-1)

The remote openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:4476-1 advisory. - A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentiality. CVE-2023-20588 - arm3...

Fedora 39 : xen (2023-35d2ad2328)

The remote Fedora 39 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-35d2ad2328 advisory. arm32: The cache may not be properly cleaned/invalidated XSA-437, CVE-2023-34321 top-level shadow reference dropped too early for 64-bit PV guests...

SUSE CVE-2023-34324

Closing of an event channel in the Linux kernel can result in a deadlock. This happens when the close is being performed in parallel to an unrelated Xen console action and the handling of a Xen console interrupt in an unprivileged guest. The closing of an event channel is e.g. triggered by remova...