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CVE-2024-26602 is a resource-exhaustion vulnerability in the Linux kernel scheduler membarrier subsystem. On affected kernels, a process can invoke the sys_membarrier system call at a sufficiently high frequency to incur expensive repeated membarrier processing and saturate system resources. The fix serializes access on the relevant path with a lock, reducing the ability to hammer the interface.
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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.
18 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel sched/membarrier flaw involving the ability to repeatedly hammer sys_membarrier.
Linux kernel sched/membarrier vulnerability involving the ability to repeatedly hammer the sys_membarrier interface.
A Linux kernel scheduler/membarrier vulnerability involving the ability to repeatedly invoke sys_membarrier.
Linux kernel scheduler/membarrier issue involving excessive invocation of sys_membarrier.
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.