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CVE-2024-40977 is a deadlock vulnerability in the Linux kernel mt76 Wi-Fi driver's mt7921s component. During chip recovery, including chip reset, the reset_work kernel worker can retain a lock while waiting for the stat_worker thread to park. Concurrently, stat_worker can wait to acquire that same lock. The circular wait deadlocks the kernel tasks. The corrective change prevents stat_worker from executing during chip recovery.
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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.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel MT7921S Wi-Fi driver flaw that could cause tasks to hang during chip recovery.
Linux kernel MT76 MT7921S Wi-Fi driver issue that can cause tasks to hang during chip recovery.
Linux kernel MT7921S Wi-Fi driver potential hung-task vulnerability during chip recovery.
Unknown
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.