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CVE-2024-50261 is a use-after-free vulnerability in the Linux kernel MACsec subsystem's hardware-offload path. MACsec allocates a metadata destination object to retain the Secure Channel Identifier used for offloaded traffic. During MACsec network-device teardown, the object could be freed immediately while an skb retained a reference and a network driver was still transmitting the packet. A subsequent driver access to the freed metadata destination object results in a slab use-after-free. The fix replaces immediate freeing in the MACsec device cleanup path with reference-counted destination release, preserving the object until outstanding skb references are released.
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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.
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1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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Cross-references every affected SKU, including bundled OEM variants.
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