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Vulnerabilities CVE-2026-72017

CVE-2026-72017

None
Open
TLP:CLEAR

net: macb: drop in-flight Tx SKBs on close

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Description

In the Linux kernel, the following vulnerability has been resolved: net: macb: drop in-flight Tx SKBs on close The MACB driver has since forever leaked the outgoing SKBs that have not yet been marked as completed. They live in queue->tx_skb which gets freed without remorse nor checking. macb_free_consistent() gets called in a few codepaths, but only close will trigger the added expressions. In macb_open() and macb_alloc_consistent() failure cases, queues' tx_skb just got allocated and are empty.

Details

Confidence
90%
Published
Aug 15, 2026
Last Modified
Aug 15, 2026
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