Allocation of Resources Without Limits or Throttling in Linux kernel - CVE-2026-53132
Published: June 26, 2026
Vulnerability identifier: #VU135652
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-53132
CWE-ID: CWE-770
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper resource management in virtio_transport_inc_rx_pkt() and the virtio vsock receive queue when processing crafted packets with zero-length payloads and the VIRTIO_VSOCK_SEQ_EOM flag. A local user can send a large number of specially crafted packets to cause a denial of service.
The issue occurs because queued packets may not increase the tracked byte count, allowing the receive queue to grow excessively.
How to mitigate CVE-2026-53132
Install security update from vendor's repository.