Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.6, < 5.10.216 |
| Debian | Debian Linux | 10.0 |
References
- https://git.kernel.org/stable/c/19ff8fed3338898b70b2aad831386c78564912e1Patch
- https://git.kernel.org/stable/c/5c7f2240d9835a7823d87f7460d8eae9f4e504c7Patch
- https://git.kernel.org/stable/c/b26aa765f7437e1bbe8db4c1641b12bd5dd378f0Patch
- https://git.kernel.org/stable/c/bf02d9fe00632d22fa91d34749c7aacf397b6cdePatch
- https://git.kernel.org/stable/c/c31baa07f01307b7ae05f3ce32b89d8e2ba0cc1dPatch
- https://git.kernel.org/stable/c/fdfbf54d128ab6ab255db138488f9650485795a2Patch
- https://git.kernel.org/stable/c/19ff8fed3338898b70b2aad831386c78564912e1Patch
- https://git.kernel.org/stable/c/5c7f2240d9835a7823d87f7460d8eae9f4e504c7Patch
- https://git.kernel.org/stable/c/b26aa765f7437e1bbe8db4c1641b12bd5dd378f0Patch
- https://git.kernel.org/stable/c/bf02d9fe00632d22fa91d34749c7aacf397b6cdePatch
- https://git.kernel.org/stable/c/c31baa07f01307b7ae05f3ce32b89d8e2ba0cc1dPatch
- https://git.kernel.org/stable/c/fdfbf54d128ab6ab255db138488f9650485795a2Patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlMailing ListThird Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-613116.html
FAQ
What is CVE-2024-35958?
CVE-2024-35958 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 f...
How severe is CVE-2024-35958?
CVE-2024-35958 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-35958?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.