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CVE-2023-52610 is an improper sk_buff reference-management flaw in the Linux kernel traffic-control conntrack action, net/sched act_ct. The affected path incremented an skb reference with skb_get() before IP fragment defragmentation. For out-of-order fragmented packets, the final fragment reference was not released, leaking the fragment skbs. If packet capture causes the skb to be cloned and shared, subsequent reassembly processing can trigger a kernel BUG in skb handling, resulting in a crash. The fix removes the pre-defragmentation skb_get() call; act_ct returns TC_ACT_CONSUMED when defragmentation is incomplete or fails.
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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.
17 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel net/sched act_ct flaw involving an skb leak and crash when processing out-of-order fragments.
Linux kernel net/sched act_ct flaw involving an skb leak and crash when handling out-of-order fragments.
A Linux kernel net/sched act_ct flaw involving an skb leak and crash when processing out-of-order fragments.
A Linux kernel net/sched act_ct flaw involving an skb leak and crash when handling out-of-order fragments.
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.