CVE-2026-43466

A flaw was found in the Linux kernel's mlx5e network driver. During a transmit TX error recovery process, a desynchronization occurs in the Direct Memory Access DMA First-In, First-Out FIFO buffer. This desynchronization causes the system to incorrectly unmap memory addresses, which can lead to...

CVE-2026-43466

Summary (CVE-2026-43466) : The Linux kernel mlx5e driver had a desync bug in the software DMA FIFO during TX error recovery. Specifically, during recovery, dma_fifo_cc was reset to 0 while dma_fifo_pc was not, causing producer/consumer to operate on misaligned indices. After recovery, new entries...

Linux Distros Unpatched Vulnerability : CVE-2026-43466

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/mlx5e: Fix DMA FIFO desync on error CQE SQ recovery In case of a TX error CQE, a recovery flow is triggered, mlx5eresettxqsqccpc resets dmafifocc to 0 but n...