CVE-2025-38036
drm/xe/vf: Perform early GT MMIO initialization to read GMDID
Reported by linux · Published June 18, 2025
In the Linux kernel, the following vulnerability has been resolved: drm/xe/vf: Perform early GT MMIO initialization to read GMDID VFs need to communicate with the GuC to obtain the GMDID value and existing GuC functions used for that assume that the GT has it's MMIO members already setup. However, due to recent refactoring the gt->mmio is initialized later, and any attempt by the VF to use xe_mmio_read|write() from GuC functions will lead to NPD crash due to unset MMIO register address: [] xe 0000:00:02.1: [drm] Running in SR-IOV VF mode [] xe 0000:00:02.1: [drm] GT0: sending H2G MMIO 0x5507 [] BUG: unable to handle page fault for address: 0000000000190240 Since we are already tweaking the id and type of the primary GT to mimic it's a Media GT before initializing the GuC communication, we can also call xe_gt_mmio_init() to perform early setup of the gt->mmio which will make those GuC functions work again.
EPSS 0.16% · 5.5th percentile
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| linux-gcp-6.12 | Chainguard | 6.12.80-r0 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | dd08ebf6c3525a7ea2186e636df064ea47281987, dd08ebf6c3525a7ea2186e636df064ea47281987 |
| Linux | Linux | 6.8, 0, 6.14.9 |
| chainguard | linux-gcp-6.12 | 0 |
| linux | linux_kernel | 6.8, 6.8 |
| chainguard | linux-vmware-6.12 | 0 |
| chainguard | linux-aws-6.12 | 0 |
| chainguard | linux-azure-6.12 | 0 |
| Linux | Linux | 6.14.9, 6.15, 6.8 |
| chainguard | linux-qemu-6.12 | 0 |
Timeline
- Jun 17, 2025 CVE Published
- Jun 18, 2025 EPSS Score (30 in total, the first dated here)
- Jun 18, 2025 Coalition ESS Score (9 in total, the first dated here)
- Dec 15, 2025 Security Advisory (276 in total, the first dated here)
- Apr 29, 2026 Distribution Patch (264 in total, the first dated here)
- Oct 13, 2026 CVE Updated
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2025-38036
vulnetix vdb fixes CVE-2025-38036Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/CVE-2025-38036/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart