CVE-2026-31449 ext4: validate p_idx bounds in ext4_ext_correct_indexes

In the Linux kernel, the following vulnerability has been resolved: ext4: validate pidx bounds in ext4extcorrectindexes ext4extcorrectindexes walks up the extent tree correcting index entries when the first extent in a leaf is modified. Before accessing pathk.pidx-eiblock, there is no validation...

PT-2026-34354

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ext4 ext correct indexes function, which corrects index entries when the first extent in a leaf is modified. The function fails to validate that the p idx pointer...

CVE-2026-27211

Cloud Hypervisor is a Virtual Machine Monitor for Cloud workloads. Versions 34.0 through 50.0 arevulnerable to arbitrary host file exfiltration constrained by process privileges when using virtio-block devices backed by raw images. A malicious guest can overwrite its disk header with a crafted...

PT-2026-21357

Name of the Vulnerable Software and Affected Versions Cloud Hypervisor versions 34.0 through 50.0 Description Cloud Hypervisor, a Virtual Machine Monitor for Cloud workloads, has an issue where a malicious guest can potentially access sensitive host files. This occurs when using virtio-block...

CVE-2021-4122

It was found that a specially crafted LUKS header could trick cryptsetup into disabling encryption during the recovery of the device. An attacker with physical access to the medium, such as a flash disk, could use this flaw to force a user into permanently disabling the encryption layer of that...

openstack-nova: Host data leak through resize/migration

An information-exposure flaw was found in the OpenStack Compute nova resize and migrate functionality. An authenticated user could write a malicious qcow header to an ephemeral or root disk, referencing a block device as a backing file. With a subsequent resize or migration, file system content o...