Vulnerability-Lookup

FKIE_CVE-2023-54202

Vulnerability from fkie_nvd - Published: 2025-12-30 13:16 - Updated: 2026-08-04 11:16

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/i915: fix race condition UAF in i915_perf_add_config_ioctl Userspace can guess the id value and try to race oa_config object creation with config remove, resulting in a use-after-free if we dereference the object after unlocking the metrics_lock. For that reason, unlocking the metrics_lock must be done after we are done dereferencing the object. [tursulin: Manually added stable tag.] (cherry picked from commit 49f6f6483b652108bcb73accd0204a464b922395)

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/240b1502708858b5e3f10b6dc5ca3f148a322fef
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6eeb1cba4c9dc47656ea328afa34953c28783d8c
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7eb98f5ac551863efe8be810cea1cd5411d677b1
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/dc30c011469165d57af9adac5baff7d767d20e5c

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/i915_perf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6eeb1cba4c9dc47656ea328afa34953c28783d8c",
              "status": "affected",
              "version": "f89823c212246d0671cc51e69894a3df1a743aee",
              "versionType": "git"
            },
            {
              "lessThan": "240b1502708858b5e3f10b6dc5ca3f148a322fef",
              "status": "affected",
              "version": "f89823c212246d0671cc51e69894a3df1a743aee",
              "versionType": "git"
            },
            {
              "lessThan": "7eb98f5ac551863efe8be810cea1cd5411d677b1",
              "status": "affected",
              "version": "f89823c212246d0671cc51e69894a3df1a743aee",
              "versionType": "git"
            },
            {
              "lessThan": "dc30c011469165d57af9adac5baff7d767d20e5c",
              "status": "affected",
              "version": "f89823c212246d0671cc51e69894a3df1a743aee",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/i915_perf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.14"
            },
            {
              "lessThan": "4.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.108",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: fix race condition UAF in i915_perf_add_config_ioctl\n\nUserspace can guess the id value and try to race oa_config object creation\nwith config remove, resulting in a use-after-free if we dereference the\nobject after unlocking the metrics_lock.  For that reason, unlocking the\nmetrics_lock must be done after we are done dereferencing the object.\n\n[tursulin: Manually added stable tag.]\n(cherry picked from commit 49f6f6483b652108bcb73accd0204a464b922395)"
    }
  ],
  "id": "CVE-2023-54202",
  "lastModified": "2026-08-04T11:16:36.480",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-12-30T13:16:08.313",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/240b1502708858b5e3f10b6dc5ca3f148a322fef"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6eeb1cba4c9dc47656ea328afa34953c28783d8c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7eb98f5ac551863efe8be810cea1cd5411d677b1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/dc30c011469165d57af9adac5baff7d767d20e5c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}

CVE-2023-54202 (GCVE-0-2023-54202)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:09 – Updated: 2026-08-05 09:18

Title

drm/i915: fix race condition UAF in i915_perf_add_config_ioctl

Summary

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

4 references

URL	Tags
https://git.kernel.org/stable/c/6eeb1cba4c9dc4765…
https://git.kernel.org/stable/c/240b1502708858b5e…
https://git.kernel.org/stable/c/7eb98f5ac551863ef…
https://git.kernel.org/stable/c/dc30c011469165d57…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: f89823c212246d0671cc51e69894a3df1a743aee , < 6eeb1cba4c9dc47656ea328afa34953c28783d8c (git) Affected: f89823c212246d0671cc51e69894a3df1a743aee , < 240b1502708858b5e3f10b6dc5ca3f148a322fef (git) Affected: f89823c212246d0671cc51e69894a3df1a743aee , < 7eb98f5ac551863efe8be810cea1cd5411d677b1 (git) Affected: f89823c212246d0671cc51e69894a3df1a743aee , < dc30c011469165d57af9adac5baff7d767d20e5c (git)
Linux	Linux	Affected: 4.14 Unaffected: 0 , < 4.14 (semver) Unaffected: 5.15.108 , ≤ 5.15.* (semver) Unaffected: 6.1.24 , ≤ 6.1.* (semver) Unaffected: 6.2.11 , ≤ 6.2.* (semver) Unaffected: 6.3 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/i915_perf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6eeb1cba4c9dc47656ea328afa34953c28783d8c",
              "status": "affected",
              "version": "f89823c212246d0671cc51e69894a3df1a743aee",
              "versionType": "git"
            },
            {
              "lessThan": "240b1502708858b5e3f10b6dc5ca3f148a322fef",
              "status": "affected",
              "version": "f89823c212246d0671cc51e69894a3df1a743aee",
              "versionType": "git"
            },
            {
              "lessThan": "7eb98f5ac551863efe8be810cea1cd5411d677b1",
              "status": "affected",
              "version": "f89823c212246d0671cc51e69894a3df1a743aee",
              "versionType": "git"
            },
            {
              "lessThan": "dc30c011469165d57af9adac5baff7d767d20e5c",
              "status": "affected",
              "version": "f89823c212246d0671cc51e69894a3df1a743aee",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/i915_perf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.14"
            },
            {
              "lessThan": "4.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.108",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.108",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.24",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2.11",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3",
                  "versionStartIncluding": "4.14",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: fix race condition UAF in i915_perf_add_config_ioctl\n\nUserspace can guess the id value and try to race oa_config object creation\nwith config remove, resulting in a use-after-free if we dereference the\nobject after unlocking the metrics_lock.  For that reason, unlocking the\nmetrics_lock must be done after we are done dereferencing the object.\n\n[tursulin: Manually added stable tag.]\n(cherry picked from commit 49f6f6483b652108bcb73accd0204a464b922395)"
        }
      ],
      "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 vulnerability is reached only through the `DRM_IOCTL_I915_PERF_ADD_CONFIG`/`REMOVE_CONFIG` ioctls on a local i915 DRM device node (`/dev/dri/renderD128`). There is no remote or network-facing path to `i915_perf_add_config_ioctl`.\nAC:L - The attacker controls both sides of the race, running the add and remove ioctls concurrently from its own threads, and `idr_alloc()` starts at 2 so the config id to target is trivially guessable rather than secret. The race can be retried without limit and without any precondition the attacker cannot influence.\nPR:L - Both ioctls are `DRM_RENDER_ALLOW`, so they require no DRM authentication or master status and are usable by any unprivileged local user holding the render node, which udev ACLs grant to logged-in users and which is exposed to sandboxed GPU processes and GPU containers. With the commonly deployed `dev.i915.perf_stream_paranoid=0` setting used by Intel GPU profiling tooling, the `perfmon_capable()` check is bypassed entirely, leaving only ordinary user access.\nUI:N - The attacker issues both ioctls itself from its own processes; no victim action, file open, or administrative operation is needed. The race is entirely self-driven.\nS:U - The use-after-free corrupts kernel slab memory within the same kernel security authority that the ioctl already executes in. No VM, IOMMU, or sandbox boundary is crossed by the flaw itself.\nC:H - The freed `struct i915_oa_config` is read after `kfree_rcu()`, and the stale `oa_config-\u003eid` is returned to userspace as the ioctl return value (with `oa_config-\u003euuid` additionally leaked to dmesg), giving a repeatable oracle for reading attacker-resprayed kernel heap contents. As a use-after-free on a kmalloc object it can be leveraged for broader kernel memory disclosure.\nI:H - This is a use-after-free on an attacker-groomable slab object whose lifetime the attacker fully controls, which is the standard starting point for heap-spray and cross-cache attacks yielding kernel write primitives. Memory corruption of this class is treated as exploitable for control-flow hijacking and thus high integrity impact.\nA:H - Dereferencing the freed `i915_oa_config` triggers a KASAN/hardened-allocator oops and, once the slab page is recycled or the object is reused, can panic or destabilise the kernel. The race can be repeated indefinitely by an unprivileged user to force the crash."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T09:18:00.905Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6eeb1cba4c9dc47656ea328afa34953c28783d8c"
        },
        {
          "url": "https://git.kernel.org/stable/c/240b1502708858b5e3f10b6dc5ca3f148a322fef"
        },
        {
          "url": "https://git.kernel.org/stable/c/7eb98f5ac551863efe8be810cea1cd5411d677b1"
        },
        {
          "url": "https://git.kernel.org/stable/c/dc30c011469165d57af9adac5baff7d767d20e5c"
        }
      ],
      "title": "drm/i915: fix race condition UAF in i915_perf_add_config_ioctl",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-54202",
    "datePublished": "2025-12-30T12:09:06.872Z",
    "dateReserved": "2025-12-30T12:06:44.499Z",
    "dateUpdated": "2026-08-05T09:18:00.905Z",
    "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.
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FKIE_CVE-2023-54202

CVE-2023-54202 (GCVE-0-2023-54202)

Tags

Sightings

Nomenclature

Related by attack behaviour