CVE-2024-35958 (GCVE-0-2024-35958)
Vulnerability from cvelistv5
Published
2024-05-20 09:41
Modified
2025-05-04 09:09
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 548c4940b9f1f527f81509468dd60b61418880b6
Version: 548c4940b9f1f527f81509468dd60b61418880b6
Version: 548c4940b9f1f527f81509468dd60b61418880b6
Version: 548c4940b9f1f527f81509468dd60b61418880b6
Version: 548c4940b9f1f527f81509468dd60b61418880b6
Version: 548c4940b9f1f527f81509468dd60b61418880b6
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