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CVE-2024-42271 is a race-condition use-after-free vulnerability in the Linux kernel AF_IUCV networking subsystem. The iucv_sock_close() path can concurrently operate on an IUCV path after that path has been severed and freed by iucv_callback_connrej() executing through iucv_tasklet_fn(). The path pointer was used as an indicator of whether path severing was already in progress, but access was not protected by an atomic compare-and-swap operation. Additionally, bh_lock_sock() does not serialize the tasklet and process contexts in this code path because the requisite sock_owned_by_user() handling is absent.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
9 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A locally exploitable Unity Linux vulnerability tracked as CVE-2024-42271. The supplied CVSS v3 vector indicates low attack complexity, low privileges required, no user interaction, unchanged scope, and high impact to confidentiality, integrity, and availability.
Linux kernel IUCV socket close use-after-free issue.
Use-after-free vulnerability in the Linux kernel net/iucv iucv_sock_close() path.
Use-after-free vulnerability in the Linux kernel net/iucv socket-close path.
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.