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CVE-2024-38541 is a buffer-overflow vulnerability in the Linux kernel Open Firmware module code's of_modalias() function. When the supplied output buffer is too small for the initial snprintf() operation, its return value can cause the remaining-length value to become negative and advance the output pointer past the end of the buffer. Subsequent processing can then operate using the invalid pointer. The fix validates available buffer space immediately after the initial snprintf() call and corrects the later length check to account for the terminating NUL byte.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
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 Open Firmware module alias buffer-overflow issue.
Linux kernel Open Firmware modalias buffer-overflow flaw.
Linux kernel Open Firmware modalias buffer-overflow flaw.
Linux kernel Open Firmware module buffer-overflow validation flaw in of_modalias.
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.