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.
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History
Wed, 14 Oct 2026 14:30:00 +0000
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Mon, 14 Apr 2025 18:15:00 +0000
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Status: PUBLISHED
Assigner: redhat
Published: 2022-12-05T00:00:00.000Z
Updated: 2026-10-14T13:52:00.648Z
Reserved: 2022-12-02T00:00:00.000Z
Link: CVE-2022-4269
Updated: 2024-08-03T01:34:50.012Z
Status : Modified
Published: 2022-12-05T16:15:10.283
Modified: 2026-10-14T14:17:28.530
Link: CVE-2022-4269