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CVE-2022-4269 is a deadlock vulnerability in the Linux kernel Traffic Control (TC) subsystem. When the TC mirred action redirects egress packets to ingress, TCP or SCTP retransmission can trigger an ABBA deadlock. A local unprivileged user can exploit this condition to cause a CPU soft lockup and denial of service.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Listed among the CVEs associated with the OpenShift Container Platform 4.10.55 security advisory. The supplied content does not describe its underlying flaw, impact, or affected component.
A Linux kernel networking vulnerability that can trigger a CPU soft lockup through the Traffic Control (TC) mirred egress-to-ingress action, addressed by the Red Hat kernel-rt update.
A Linux kernel networking vulnerability that can cause a CPU soft lockup through the TC mirred egress-to-ingress action.
A Linux kernel networking vulnerability that can cause a CPU soft lockup through the Traffic Control mirred egress-to-ingress action.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.