IT

Tracker / CVE-2024-35958

CVE-2024-35958

High 7.8

In the Linux kernel, the following vulnerability has been resolved: net: ena: Fix incorrect descriptor free behavior ENA has two types of TX queues: - queues which only process TX packets arriving from the network stack - queues which only process TX packets forwarded to it by XDP_REDIRECT or XDP_TX instructions The ena_free_tx_bufs() cycles through all descriptors in a TX queue and unmaps + frees every descriptor that hasn't been acknowledged yet by the device (uncompleted TX transactions). The function assumes that the processed TX queue is necessarily from the first category listed above and ends up using napi_consume_skb() for descriptors belonging to an XDP specific queue. This patch solves a bug in which, in case of a VF reset, the descriptors aren't freed correctly, leading to crashes.

Affected products and versions

debian debian_linux
linux linux_kernel
linux linux_kernel · 5.11 → 5.15.156
linux linux_kernel · 5.16 → 6.1.87
linux linux_kernel · 5.6 → 5.10.216
linux linux_kernel · 6.2 → 6.6.28
linux linux_kernel · 6.7 → 6.8.7

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References