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CVE-2024-38580 is a Linux kernel epoll file-object lifetime flaw. epoll routines could invoke vfs_poll() using a file pointer concurrently with that file's final fput(). Although epoll's mutex prevents teardown from completing until polling returns, the file reference count may already have reached zero; consequently, subsequent attempts to acquire or use a reference are invalid. The fix obtains and retains a valid file reference before epoll calls vfs_poll().
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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.
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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.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel epoll file-lifetime handling flaw.
Linux kernel epoll file-lifetime management vulnerability.
A resolved Linux kernel epoll file-lifetime handling vulnerability, affecting Red Hat Enterprise Linux 9 according to the notice.
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.