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CVE-2023-52877 is a NULL-pointer dereference in the Linux kernel USB Type-C Port Manager (TCPM). When Type-C partner registration fails and returns an error pointer, subsequent USB Power Delivery structured vendor-defined message processing can operate on an invalid or absent partner object. The affected handling path, including tcpm_pd_svdm() and subsequent PD data-request processing, can dereference port->partner. The upstream fix validates port->partner before use.
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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.
Linux kernel USB Type-C TCPM NULL-pointer dereference in tcpm_pd_svdm().
A NULL-pointer dereference in the Linux kernel USB Type-C TCPM subsystem.
Linux kernel USB Type-C TCPM null-pointer-dereference vulnerability.
Linux kernel USB Type-C TCPM NULL-pointer dereference flaw.
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.