CVE-2024-35958 In the Linux kernel, the following vulnerability has been resolved: net: ena: Fix incorrect descriptor free behavior ENA…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux 6.9 | earliest → < 6.9 | 6.9 |
| Linux 6.8 | earliest → < 6.8.7 | 6.8.7 |
| Linux 6.6 | earliest → < 6.6.28 | 6.6.28 |
| Linux 6.1 | earliest → < 6.1.87 | 6.1.87 |
| Linux 5.15 | earliest → < 5.15.156 | 5.15.156 |
| Linux 5.10 | earliest → < 5.10.216 | 5.10.216 |
| Linux | 5.6 | No fix stated |
| RUGGEDCOM RST2428P 3.1 | earliest → < 3.1 | 3.1 |
| SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family | Versions not published |
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| Product | Affected versions | Fixed in |
|---|---|---|
| SCALANCE XCM-/XRM-/XCH-/XRH-300 family 3.1 | earliest → < 3.1 | 3.1 |
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem 1.1 | earliest → < 1.1.1 | 1.1.1 |
References
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
Timeline
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