CVE-2024-35958High· 7.8▾ TwilightIn 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 …
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.3%
In the Linux kernel, the following vulnerability has been resolved:
net: ena: Fix incorrect descriptor free behavior
ENA has two types of TX queues:
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.
linux_kernel >= 5.6, < 5.10.216linux_kernel >= 5.11, < 5.15.156linux_kernel >= 5.16, < 6.1.87linux_kernel >= 6.2, < 6.6.28linux_kernel >= 6.7, < 6.8.7linux_kernel = 6.9debian_linux = 10.0Upgrade past the affected range:
linux_kernel 6.8.7Connected by shared product, vendor, weakness, or advisory.
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