Vulnerability-Lookup

GHSA-V5PX-6XP4-RW9F

Vulnerability from github – Published: 2026-04-22 15:31 – Updated: 2026-04-27 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

drm/xe/pf: Fix use-after-free in migration restore

When an error is returned from xe_sriov_pf_migration_restore_produce(), the data pointer is not set to NULL, which can trigger use-after-free in subsequent .write() calls. Set the pointer to NULL upon error to fix the problem.

(cherry picked from commit 4f53d8c6d23527d734fe3531d08e15cb170a0819)

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-31490"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-22T14:16:46Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/pf: Fix use-after-free in migration restore\n\nWhen an error is returned from xe_sriov_pf_migration_restore_produce(),\nthe data pointer is not set to NULL, which can trigger use-after-free\nin subsequent .write() calls.\nSet the pointer to NULL upon error to fix the problem.\n\n(cherry picked from commit 4f53d8c6d23527d734fe3531d08e15cb170a0819)",
  "id": "GHSA-v5px-6xp4-rw9f",
  "modified": "2026-04-27T15:30:39Z",
  "published": "2026-04-22T15:31:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31490"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/87997b6c6516e049cbaf2fc6810b213d587a06b1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e28552b4ddea5cb4725380dd08237831af835124"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-31490 (GCVE-0-2026-31490)

Vulnerability from cvelistv5 – Published: 2026-04-22 13:54 – Updated: 2026-08-05 12:23

Title

drm/xe/pf: Fix use-after-free in migration restore

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/xe/pf: Fix use-after-free in migration restore When an error is returned from xe_sriov_pf_migration_restore_produce(), the data pointer is not set to NULL, which can trigger use-after-free in subsequent .write() calls. Set the pointer to NULL upon error to fix the problem. (cherry picked from commit 4f53d8c6d23527d734fe3531d08e15cb170a0819)

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/e28552b4ddea5cb47…
https://git.kernel.org/stable/c/87997b6c6516e049c…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1ed30397c0b92b97381dbd11362fdbbf93e046d2 , < e28552b4ddea5cb4725380dd08237831af835124 (git) Affected: 1ed30397c0b92b97381dbd11362fdbbf93e046d2 , < 87997b6c6516e049cbaf2fc6810b213d587a06b1 (git)
Linux	Linux	Affected: 6.19 Unaffected: 0 , < 6.19 (semver) Unaffected: 6.19.11 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xe/xe_sriov_packet.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e28552b4ddea5cb4725380dd08237831af835124",
              "status": "affected",
              "version": "1ed30397c0b92b97381dbd11362fdbbf93e046d2",
              "versionType": "git"
            },
            {
              "lessThan": "87997b6c6516e049cbaf2fc6810b213d587a06b1",
              "status": "affected",
              "version": "1ed30397c0b92b97381dbd11362fdbbf93e046d2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xe/xe_sriov_packet.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "lessThan": "6.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.11",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/pf: Fix use-after-free in migration restore\n\nWhen an error is returned from xe_sriov_pf_migration_restore_produce(),\nthe data pointer is not set to NULL, which can trigger use-after-free\nin subsequent .write() calls.\nSet the pointer to NULL upon error to fix the problem.\n\n(cherry picked from commit 4f53d8c6d23527d734fe3531d08e15cb170a0819)"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable restore write path is reached through local kernel interfaces, primarily the Xe VFIO migration resume data fd and also PF debugfs migration_data, not by network packets.\nAC:L - An attacker with access to the migration write interface can deliberately write a malformed complete packet, get an error from restore production, and then issue a subsequent write against the stale pending pointer.\nPR:L - The debugfs path is root-only, but the same helper is exposed through xe-vfio-pci migration to a process with an assigned VFIO device fd, which is commonly delegated to an unprivileged VMM user.\nUI:N - No victim action is needed once the attacker can operate the local VFIO/debugfs migration interface; the attacker directly performs the state transition and writes restore data.\nS:U - The bug corrupts host kernel memory from a host kernel driver path, so the impact remains within the same kernel security authority.\nC:H - This is a kernel use-after-free on a packet object containing attacker-influenced header and buffer pointer state, which can plausibly be shaped into disclosure of kernel memory.\nI:H - The stale packet pointer is reused on later writes, including copy_from_user through fields from freed/reallocated memory, making arbitrary kernel memory corruption defensible.\nA:H - At minimum the dangling pointer can be triggered repeatedly to cause kernel oops, panic, or device/host instability."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:23:02.564Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e28552b4ddea5cb4725380dd08237831af835124"
        },
        {
          "url": "https://git.kernel.org/stable/c/87997b6c6516e049cbaf2fc6810b213d587a06b1"
        }
      ],
      "title": "drm/xe/pf: Fix use-after-free in migration restore",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31490",
    "datePublished": "2026-04-22T13:54:14.241Z",
    "dateReserved": "2026-03-09T15:48:24.102Z",
    "dateUpdated": "2026-08-05T12:23:02.564Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

GHSA-V5PX-6XP4-RW9F

CVE-2026-31490 (GCVE-0-2026-31490)

Tags

Sightings

Nomenclature

Related by attack behaviour