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CVE-2024-56603 is a use-after-free vulnerability in the Linux kernel AF_CAN networking subsystem. In the error path of can_create(), an allocated socket object is freed after sock_init_data() has already associated that object with the supplied socket structure. The socket structure consequently retains a dangling pointer to freed memory, which can be dereferenced during subsequent socket processing.
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Linux kernel AF_CAN networking flaw involving a dangling socket pointer in can_create(). Red Hat includes a fix in its Important RHSA-2026:25908 kernel update.
Linux kernel AF_CAN networking flaw caused by a dangling socket pointer in can_create().
A Linux kernel AF_CAN socket-creation error-path flaw in can_create() that leaves a dangling socket (sk) pointer after freeing the socket object, potentially resulting in a use-after-free.
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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.