Vulnerability-Lookup

GHSA-QMGP-8GJW-93V8

Vulnerability from github – Published: 2024-09-04 21:30 – Updated: 2024-09-10 18:30

Details

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

drm/xe: Free job before xe_exec_queue_put

Free job depends on job->vm being valid, the last xe_exec_queue_put can destroy the VM. Prevent UAF by freeing job before xe_exec_queue_put.

(cherry picked from commit 32a42c93b74c8ca6d0915ea3eba21bceff53042f)

Severity

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-44978"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-04T20:15:07Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Free job before xe_exec_queue_put\n\nFree job depends on job-\u003evm being valid, the last xe_exec_queue_put can\ndestroy the VM. Prevent UAF by freeing job before xe_exec_queue_put.\n\n(cherry picked from commit 32a42c93b74c8ca6d0915ea3eba21bceff53042f)",
  "id": "GHSA-qmgp-8gjw-93v8",
  "modified": "2024-09-10T18:30:42Z",
  "published": "2024-09-04T21:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-44978"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/98aa0330f200b9b8fb9e1298e006eda57a13351c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e7f30563677fbeff62d368d5d2a5ac7aaa9746a"
    }
  ],
  "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-2024-44978 (GCVE-0-2024-44978)

Vulnerability from cvelistv5 – Published: 2024-09-04 19:54 – Updated: 2026-08-05 11:37

Title

drm/xe: Free job before xe_exec_queue_put

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Free job before xe_exec_queue_put Free job depends on job->vm being valid, the last xe_exec_queue_put can destroy the VM. Prevent UAF by freeing job before xe_exec_queue_put. (cherry picked from commit 32a42c93b74c8ca6d0915ea3eba21bceff53042f)

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 15:20 UTC

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/98aa0330f200b9b8f…
https://git.kernel.org/stable/c/9e7f30563677fbeff…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: dd08ebf6c3525a7ea2186e636df064ea47281987 , < 98aa0330f200b9b8fb9e1298e006eda57a13351c (git) Affected: dd08ebf6c3525a7ea2186e636df064ea47281987 , < 9e7f30563677fbeff62d368d5d2a5ac7aaa9746a (git)
Linux	Linux	Affected: 6.8 Unaffected: 0 , < 6.8 (semver) Unaffected: 6.10.7 , ≤ 6.10.* (semver) Unaffected: 6.11 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-44978",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:20:40.351052Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2024-09-12T17:33:03.653Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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    "cna": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xe/xe_sched_job.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "98aa0330f200b9b8fb9e1298e006eda57a13351c",
              "status": "affected",
              "version": "dd08ebf6c3525a7ea2186e636df064ea47281987",
              "versionType": "git"
            },
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              "lessThan": "9e7f30563677fbeff62d368d5d2a5ac7aaa9746a",
              "status": "affected",
              "version": "dd08ebf6c3525a7ea2186e636df064ea47281987",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/xe/xe_sched_job.c"
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          "versions": [
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              "status": "affected",
              "version": "6.8"
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            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.11",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.10.7",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe: Free job before xe_exec_queue_put\n\nFree job depends on job-\u003evm being valid, the last xe_exec_queue_put can\ndestroy the VM. Prevent UAF by freeing job before xe_exec_queue_put.\n\n(cherry picked from commit 32a42c93b74c8ca6d0915ea3eba21bceff53042f)"
        }
      ],
      "metrics": [
        {
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            "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 vulnerability is reached only through DRM ioctls on the local Intel Xe render node (/dev/dri/renderD*) \u2014 XE_EXEC, XE_EXEC_QUEUE_CREATE/DESTROY \u2014 requiring an open file descriptor on the device. There is no remote or adjacent-network path to xe_sched_job_destroy().\nAC:L - The attacker controls every input to the bug: they create the VM and exec queue, submit the jobs, and destroy the queue so the final job reference triggers the put-before-free, and can drive the device into the wedged state to hit the fully synchronous kfree path. Where the free is deferred to a workqueue, the attacker owns both sides of the race and can retry indefinitely with heap grooming.\nPR:L - All ioctls on the path are marked DRM_RENDER_ALLOW with no DRM_AUTH, no DRM master requirement, and no capability check, so an ordinary unprivileged user with render-node access (default on desktop distros via logind ACLs, and common in GPU-enabled containers) can trigger it. No root or CAP_SYS_ADMIN is needed.\nUI:N - The attacker triggers the entire sequence from their own process with no victim action required. No file opening, mount, or interaction by another user is involved.\nS:U - The corruption is confined to kernel heap memory managed by the same kernel security authority as the attacking process. No hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - This is a use-after-free of struct xe_exec_queue plus a dereference of the already-freed xe_vm through a dangling pointer, and the attacker can reallocate the freed queue to control the pointer that is then read. Per kernel UAF guidance this yields attacker-influenced kernel memory disclosure.\nI:H - The stale q-\u003ewidth read selects which kmem_cache the job is returned to, so a sprayed replacement object produces a wrong-cache kmem_cache_free() and SLUB freelist corruption \u2014 a write primitive leveragable for control-flow hijack and privilege escalation. Per guidance, use-after-free is scored High for integrity.\nA:H - Even unexploited, dereferencing the freed exec queue and freed VM causes a kernel oops or panic, and mismatched slab frees corrupt allocator state leading to later crashes. Any unprivileged user with render-node access can repeat this at will."
            }
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        {
          "url": "https://git.kernel.org/stable/c/9e7f30563677fbeff62d368d5d2a5ac7aaa9746a"
        }
      ],
      "title": "drm/xe: Free job before xe_exec_queue_put",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-44978",
    "datePublished": "2024-09-04T19:54:29.559Z",
    "dateReserved": "2024-08-21T05:34:56.670Z",
    "dateUpdated": "2026-08-05T11:37:25.547Z",
    "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.

Detection rules are retrieved from Rulezet.

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

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