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CVE-2021-47385 is a NULL pointer dereference in the Linux kernel hardware-monitoring driver for the w83792d device. The driver retained an obsolete lm75[] structure field after its subclient handling had changed to use managed I2C dummy devices. A device-read value satisfying (val & 0x08) && !(val & 0x80) && ((val & 0x7) == ((val >> 4) & 0x7)) can reach the invalid pointer access. The upstream correction removes the unnecessary lm75[] field.
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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.
16 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel W83792D hardware-monitor driver NULL-pointer dereference flaw.
Linux kernel w83792d hardware-monitor driver NULL-pointer dereference.
Linux kernel hwmon w83792d driver NULL-pointer-dereference vulnerability.
Linux kernel hwmon w83792d driver NULL-pointer dereference vulnerability.
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.