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CVE-2026-23144 is a Linux kernel vulnerability in the DAMON sysfs subsystem, in mm/damon/sysfs. The flaw occurs when creation of a DAMON context sysfs directory fails after the attrs directory has already been created. In that error path, subdirectories under attrs are not properly cleaned up, leaving stale sysfs directory objects allocated. The result is that the DAMON sysfs interface can become nearly unusable until the system is rebooted, while kernel memory associated with the unremoved directories is leaked. The fix adds proper cleanup of the attrs subdirectories when context directory setup fails.
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A Linux kernel DAMON sysfs flaw where failed context directory setup does not clean up attrs/ subdirectories, leaving the DAMON sysfs interface nearly broken until reboot and causing a memory leak.
A Linux kernel vulnerability in DAMON sysfs that can cause local denial of service and memory leak via setup failure.
A Linux kernel vulnerability in DAMON sysfs that can cause local denial of service and memory leakage via setup failure.
A Linux kernel vulnerability in DAMON sysfs that can cause local denial of service and a memory leak when setup fails.
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Every observed campaign linking this CVE to a named adversary.
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YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
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