CVE-2024-58099 (GCVE-0-2024-58099)
Vulnerability from cvelistv5
Published
2025-04-29 11:45
Modified
2026-05-11 21:03
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: vmxnet3: Fix packet corruption in vmxnet3_xdp_xmit_frame Andrew and Nikolay reported connectivity issues with Cilium's service load-balancing in case of vmxnet3. If a BPF program for native XDP adds an encapsulation header such as IPIP and transmits the packet out the same interface, then in case of vmxnet3 a corrupted packet is being sent and subsequently dropped on the path. vmxnet3_xdp_xmit_frame() which is called e.g. via vmxnet3_run_xdp() through vmxnet3_xdp_xmit_back() calculates an incorrect DMA address: page = virt_to_page(xdpf->data); tbi->dma_addr = page_pool_get_dma_addr(page) + VMXNET3_XDP_HEADROOM; dma_sync_single_for_device(&adapter->pdev->dev, tbi->dma_addr, buf_size, DMA_TO_DEVICE); The above assumes a fixed offset (VMXNET3_XDP_HEADROOM), but the XDP BPF program could have moved xdp->data. While the passed buf_size is correct (xdpf->len), the dma_addr needs to have a dynamic offset which can be calculated as xdpf->data - (void *)xdpf, that is, xdp->data - xdp->data_hard_start.
References
Impacted products
Vendor Product Version
Linux Linux Version: 54f00cce11786742bd11e5e68c3bf85e6dc048c9
Version: 54f00cce11786742bd11e5e68c3bf85e6dc048c9
Version: 54f00cce11786742bd11e5e68c3bf85e6dc048c9
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              "confidentialityImpact": "NONE",
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvmxnet3: Fix packet corruption in vmxnet3_xdp_xmit_frame\n\nAndrew and Nikolay reported connectivity issues with Cilium\u0027s service\nload-balancing in case of vmxnet3.\n\nIf a BPF program for native XDP adds an encapsulation header such as\nIPIP and transmits the packet out the same interface, then in case\nof vmxnet3 a corrupted packet is being sent and subsequently dropped\non the path.\n\nvmxnet3_xdp_xmit_frame() which is called e.g. via vmxnet3_run_xdp()\nthrough vmxnet3_xdp_xmit_back() calculates an incorrect DMA address:\n\n  page = virt_to_page(xdpf-\u003edata);\n  tbi-\u003edma_addr = page_pool_get_dma_addr(page) +\n                  VMXNET3_XDP_HEADROOM;\n  dma_sync_single_for_device(\u0026adapter-\u003epdev-\u003edev,\n                             tbi-\u003edma_addr, buf_size,\n                             DMA_TO_DEVICE);\n\nThe above assumes a fixed offset (VMXNET3_XDP_HEADROOM), but the XDP\nBPF program could have moved xdp-\u003edata. While the passed buf_size is\ncorrect (xdpf-\u003elen), the dma_addr needs to have a dynamic offset which\ncan be calculated as xdpf-\u003edata - (void *)xdpf, that is, xdp-\u003edata -\nxdp-\u003edata_hard_start."
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    "datePublished": "2025-04-29T11:45:30.997Z",
    "dateReserved": "2025-03-06T15:52:09.189Z",
    "dateUpdated": "2026-05-11T21:03:16.864Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
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}


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