Vulnerability-Lookup

GHSA-8P58-276H-XQQ5

Vulnerability from github – Published: 2024-12-27 15:31 – Updated: 2025-01-06 21:30

Details

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

drm/xe/reg_sr: Remove register pool

That pool implementation doesn't really work: if the krealloc happens to move the memory and return another address, the entries in the xarray become invalid, leading to use-after-free later:

BUG: KASAN: slab-use-after-free in xe_reg_sr_apply_mmio+0x570/0x760 [xe]
Read of size 4 at addr ffff8881244b2590 by task modprobe/2753

Allocated by task 2753:
 kasan_save_stack+0x39/0x70
 kasan_save_track+0x14/0x40
 kasan_save_alloc_info+0x37/0x60
 __kasan_kmalloc+0xc3/0xd0
 __kmalloc_node_track_caller_noprof+0x200/0x6d0
 krealloc_noprof+0x229/0x380

Simplify the code to fix the bug. A better pooling strategy may be added back later if needed.

(cherry picked from commit e5283bd4dfecbd3335f43b62a68e24dae23f59e4)

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-2024-56652"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-27T15:15:25Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/reg_sr: Remove register pool\n\nThat pool implementation doesn\u0027t really work: if the krealloc happens to\nmove the memory and return another address, the entries in the xarray\nbecome invalid, leading to use-after-free later:\n\n\tBUG: KASAN: slab-use-after-free in xe_reg_sr_apply_mmio+0x570/0x760 [xe]\n\tRead of size 4 at addr ffff8881244b2590 by task modprobe/2753\n\n\tAllocated by task 2753:\n\t kasan_save_stack+0x39/0x70\n\t kasan_save_track+0x14/0x40\n\t kasan_save_alloc_info+0x37/0x60\n\t __kasan_kmalloc+0xc3/0xd0\n\t __kmalloc_node_track_caller_noprof+0x200/0x6d0\n\t krealloc_noprof+0x229/0x380\n\nSimplify the code to fix the bug. A better pooling strategy may be added\nback later if needed.\n\n(cherry picked from commit e5283bd4dfecbd3335f43b62a68e24dae23f59e4)",
  "id": "GHSA-8p58-276h-xqq5",
  "modified": "2025-01-06T21:30:50Z",
  "published": "2024-12-27T15:31:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56652"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b0193a31a0ca5a0f9e60bb4a86537d46b98111b8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d7b028656c29b22fcde1c6ee1df5b28fbba987b5"
    }
  ],
  "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-2024-56652 (GCVE-0-2024-56652)

Vulnerability from cvelistv5 – Published: 2024-12-27 15:06 – Updated: 2026-08-05 11:45

Title

drm/xe/reg_sr: Remove register pool

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/xe/reg_sr: Remove register pool That pool implementation doesn't really work: if the krealloc happens to move the memory and return another address, the entries in the xarray become invalid, leading to use-after-free later: BUG: KASAN: slab-use-after-free in xe_reg_sr_apply_mmio+0x570/0x760 [xe] Read of size 4 at addr ffff8881244b2590 by task modprobe/2753 Allocated by task 2753: kasan_save_stack+0x39/0x70 kasan_save_track+0x14/0x40 kasan_save_alloc_info+0x37/0x60 __kasan_kmalloc+0xc3/0xd0 __kmalloc_node_track_caller_noprof+0x200/0x6d0 krealloc_noprof+0x229/0x380 Simplify the code to fix the bug. A better pooling strategy may be added back later if needed. (cherry picked from commit e5283bd4dfecbd3335f43b62a68e24dae23f59e4)

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: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-11 15:41 UTC

CWE

CWE-416 - Use After Free

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/b0193a31a0ca5a0f9…
https://git.kernel.org/stable/c/d7b028656c29b22fc…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: dd08ebf6c3525a7ea2186e636df064ea47281987 , < b0193a31a0ca5a0f9e60bb4a86537d46b98111b8 (git) Affected: dd08ebf6c3525a7ea2186e636df064ea47281987 , < d7b028656c29b22fcde1c6ee1df5b28fbba987b5 (git)
Linux	Linux	Affected: 6.8 Unaffected: 0 , < 6.8 (semver) Unaffected: 6.12.6 , ≤ 6.12.* (semver) Unaffected: 6.13 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "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"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2024-56652",
                "options": [
                  {
                    "Exploitation": "none"
                  },
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                  },
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                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-11T15:41:38.610298Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
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          "product": "Linux",
          "programFiles": [
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            {
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              "status": "affected",
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              "versionType": "git"
            }
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        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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            "drivers/gpu/drm/xe/xe_reg_sr_types.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
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                  "versionEndExcluding": "6.12.6",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
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                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                }
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              "operator": "OR"
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/reg_sr: Remove register pool\n\nThat pool implementation doesn\u0027t really work: if the krealloc happens to\nmove the memory and return another address, the entries in the xarray\nbecome invalid, leading to use-after-free later:\n\n\tBUG: KASAN: slab-use-after-free in xe_reg_sr_apply_mmio+0x570/0x760 [xe]\n\tRead of size 4 at addr ffff8881244b2590 by task modprobe/2753\n\n\tAllocated by task 2753:\n\t kasan_save_stack+0x39/0x70\n\t kasan_save_track+0x14/0x40\n\t kasan_save_alloc_info+0x37/0x60\n\t __kasan_kmalloc+0xc3/0xd0\n\t __kmalloc_node_track_caller_noprof+0x200/0x6d0\n\t krealloc_noprof+0x229/0x380\n\nSimplify the code to fix the bug. A better pooling strategy may be added\nback later if needed.\n\n(cherry picked from commit e5283bd4dfecbd3335f43b62a68e24dae23f59e4)"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
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          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable code is in the i915/xe GPU driver and is reached through local driver init and through GT/engine resets driven by a local DRM render-node client; there is no network-reachable path.\nAC:L - The dangling pointers arise deterministically whenever a save/restore table exceeds 16 entries (the normal case on modern platforms \u2014 the KASAN splat comes from a plain modprobe), and there is no race to win: the attacker can re-trigger the use of the freed entries at will by forcing GT resets.\nPR:L - A basic unprivileged user with an fd on /dev/dri/renderD* \u2014 standard for any desktop, container or GPU-compute session \u2014 can submit a hanging exec queue to force the GT reset that re-walks the dangling entries, and can spray the freed kmalloc-256 slab beforehand.\nUI:N - The corrupt xarray is built automatically during driver probe and the reset path is triggered entirely by the attacker\u0027s own GPU submissions; no victim action is required.\nS:U - The use-after-free, the out-of-bounds iomem write and the resulting corruption all occur within the host kernel\u0027s own security authority; no VM, sandbox or IOMMU boundary is crossed.\nC:H - This is a slab use-after-free read: freed heap contents are consumed as register descriptors and are additionally printed verbatim through the xe_reg_sr_dump() debugfs interface, and the UAF gives the attacker control over freed-object contents enabling broader disclosure.\nI:H - Freed memory supplies both the 28-bit offset and the value of an unbounded writel(val, mmio-\u003eregs + addr) against a SZ_4M mapping, yielding an out-of-bounds kernel iomem write plus arbitrary GT register reprogramming \u2014 including the RING_FORCE_TO_NONPRIV whitelist slots that gate what unprivileged GPU batches may touch.\nA:H - A KASAN-confirmed use-after-free that programs garbage register addresses/values into the GPU on every GT reset, wedging the device and causing oopses/panics from writes past the ioremapped BAR window; it can be re-triggered repeatedly."
            }
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          "url": "https://git.kernel.org/stable/c/d7b028656c29b22fcde1c6ee1df5b28fbba987b5"
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      ],
      "title": "drm/xe/reg_sr: Remove register pool",
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    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    "cveId": "CVE-2024-56652",
    "datePublished": "2024-12-27T15:06:16.454Z",
    "dateReserved": "2024-12-27T15:00:39.841Z",
    "dateUpdated": "2026-08-05T11:45:49.934Z",
    "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.
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GHSA-8P58-276H-XQQ5

CVE-2024-56652 (GCVE-0-2024-56652)

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