drm/amd/display: fix double free issue during amdgpu module unload

{
  "id": "56ba75518feae3ca75ed9ffdcbdd7949fe577d869b2faeaed54020fbd982ad23",
  "url": "https://osv.dev/vulnerability/CVE-2024-49989",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/amd/display: fix double free issue during amdgpu module unload",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix double free issue during amdgpu module unload Flexible endpoints use DIGs from available inflexible endpoints, so only the encoders of inflexible links need to be freed. Otherwise, a double free issue may occur when unloading the amdgpu module. [ 279.190523] RIP: 0010:__slab_free+0x152/0x2f0 [ 279.190577] Call Trace: [ 279.190580] [ 279.190582] ? show_regs+0x69/0x80 [ 279.190590] ? die+0x3b/0x90 [ 279.190595] ? do_trap+0xc8/0xe0 [ 279.190601] ? do_error_trap+0x73/0xa0 [ 279.190605] ? __slab_free+0x152/0x2f0 [ 279.190609] ? exc_invalid_op+0x56/0x70 [ 279.190616] ? __slab_free+0x152/0x2f0 [ 279.190642] ? asm_exc_invalid_op+0x1f/0x30 [ 279.190648] ? dcn10_link_encoder_destroy+0x19/0x30 [amdgpu] [ 279.191096] ? __slab_free+0x152/0x2f0 [ 279.191102] ? dcn10_link_encoder_destroy+0x19/0x30 [amdgpu] [ 279.191469] kfree+0x260/0x2b0 [ 279.191474] dcn10_link_encoder_destroy+0x19/0x30 [amdgpu] [ 279.191821] link_destroy+0xd7/0x130 [amdgpu] [ 279.192248] dc_destruct+0x90/0x270 [amdgpu] [ 279.192666] dc_destroy+0x19/0x40 [amdgpu] [ 279.193020] amdgpu_dm_fini+0x16e/0x200 [amdgpu] [ 279.193432] dm_hw_fini+0x26/0x40 [amdgpu] [ 279.193795] amdgpu_device_fini_hw+0x24c/0x400 [amdgpu] [ 279.194108] amdgpu_driver_unload_kms+0x4f/0x70 [amdgpu] [ 279.194436] amdgpu_pci_remove+0x40/0x80 [amdgpu] [ 279.194632] pci_device_remove+0x3a/0xa0 [ 279.194638] device_remove+0x40/0x70 [ 279.194642] device_release_driver_int",
    "evidence": "osv:CVE-2024-49989",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.181",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.129",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.55",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.10.14",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.11.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-49989",
      "aliases": [
        "CVE-2024-49989"
      ],
      "affected": [
        {
          "ranges": [
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
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                {
                  "fixed": "cf6f3ebd6312d465fee096d1f58089b177c7c67f"
                },
                {
                  "fixed": "7af9e6fa63dbd43a61d4ecc8f59426596a75e507"
                },
                {
                  "fixed": "3c0ff4de45ce2c5f7997a1ffa6eefee4b79e6b58"
                },
                {
                  "fixed": "20b5a8f9f4670a8503aa9fa95ca632e77c6bf55d"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-49989.json"
          }
        },
        {
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              "type": "ECOSYSTEM",
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            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "6.2.0"
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                {
                  "fixed": "6.6.55"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-49989.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:31.019603002Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/20b5a8f9f4670a8503aa9fa95ca632e77c6bf55d",
        "https://git.kernel.org/stable/c/3c0ff4de45ce2c5f7997a1ffa6eefee4b79e6b58",
        "https://git.kernel.org/stable/c/43c296870740a3a264cdca9f18db12e12e9cfbdb",
        "https://git.kernel.org/stable/c/7af9e6fa63dbd43a61d4ecc8f59426596a75e507",
        "https://git.kernel.org/stable/c/cf6f3ebd6312d465fee096d1f58089b177c7c67f",
        "https://git.kernel.org/stable/c/df948b5ba6858d5da34f622d408e5517057cec07",
        "https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49989.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-49989",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49989.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-49989",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 497901,
  "published_at": "2024-10-21T18:02:32.507+00:00"
}