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CVE-2024-26740 is a deadlock vulnerability in the Linux kernel traffic-control mirroring and redirect action implementation in net/sched. An egress-to-ingress redirect can cause a packet to re-enter the receive path inline and reach the socket that originated it while that socket's lock remains held. This can result in a tcp_v4_rcv-to-tcp_v4_rcv locking deadlock. The upstream fix queues packets through the receive backlog for all egress-to-ingress mirred reversals instead of processing the ingress receive path inline.
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What an attacker gets, and what they’ve been doing with it.
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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.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A flaw in the Linux kernel net/sched act_mirred ingress processing path.
A CVE referenced by the OpenShift Container Platform 4.17.19 advisory; the content provides no vulnerability-specific description.
A Linux kernel networking traffic-control (net/sched) act_mirred issue affecting mirrored ingress traffic; the resolution changes act_mirred to use the backlog for mirred ingress.
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.