ZeroDay Findings
Sign inSign up

Findings

CVE-2022-4269

A flaw was found in the Linux kernel Traffic Control (TC) subsystem.

Published Dec 5, 2022 · updated Oct 14, 2026 · linux linux kernel

A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action "mirred") a local unprivileged user could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a retransmission, resulting in a denial of service condition.

Timeline

Detection, updates, and resolution for this record.

  1. Dec 5, 2022 · NIST NVD

    Detected

    A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action "mirred") a local unprivileged user could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a retransmission, resulting in a denial of service condition.

  2. Oct 14, 2026 · NIST NVD

    Updated

    A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action "mirred") a local unprivileged user could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a retransmission, resulting in a denial of service condition.

Affected

  • cpe linux/linux kernel4.1

Sources

  • CVE.orgCVE-2022-4269

    Official CVE identifier

    cve.org
  • NIST NVDCVE-2022-4269

    A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action "mirred") a local unprivileged user could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in

    nvd.nist.gov

References