Incorrect Calculation of Buffer Size The advisory has been revoked - it doesn't affect any version of package kernel-headers (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-KERNELHEADERS-11310362
- published30 Jul 2025
- disclosed10 Jul 2025
Introduced: 10 Jul 2025
CVE-2025-38314 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers package as distributed by RHEL.
In the Linux kernel, the following vulnerability has been resolved:
virtio-pci: Fix result size returned for the admin command completion
The result size returned by virtio_pci_admin_dev_parts_get() is 8 bytes larger than the actual result data size. This occurs because the result_sg_size field of the command is filled with the result length from virtqueue_get_buf(), which includes both the data size and an additional 8 bytes of status.
This oversized result size causes two issues:
- The state transferred to the destination includes 8 bytes of extra data at the end.
- The allocated buffer in the kernel may be smaller than the returned size, leading to failures when reading beyond the allocated size.
The commit fixes this by subtracting the status size from the result of virtqueue_get_buf().
This fix has been tested through live migrations with virtio-net, virtio-net-transitional, and virtio-blk devices.