CVE-2026-43371
Description
A flaw was found in the Linux kernel's macb driver. When the transmit function is disabled, the driver incorrectly resets the transmit queue pointers without properly handling packets already in the queue. This can lead to silent loss of queued packets, memory leaks, and potential race conditions during concurrent access to the queue pointers. The most significant impact is a prolonged system recovery time, effectively causing a Denial of Service (DoS) for affected systems, such as those using an NFS (Network File System) root filesystem after a suspend operation.
Understanding the Weakness (CWE)
Integrity,Availability
Technical Impact: Modify Application Data; DoS: Instability; DoS: Crash, Exit, or Restart
Frequently Asked Questions
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