drm/mst: Fix NULL pointer dereference at drm_dp_add_payload_part2

{
  "id": "d4c4c0ddd98f513c114c73ab01c8981993f866ccb45eae514aaad80cecb2ea46",
  "url": "https://osv.dev/vulnerability/CVE-2024-39498",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/mst: Fix NULL pointer dereference at drm_dp_add_payload_part2",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/mst: Fix NULL pointer dereference at drm_dp_add_payload_part2 [Why] Commit: - commit 5aa1dfcdf0a4 (\"drm/mst: Refactor the flow for payload allocation/removement\") accidently overwrite the commit - commit 54d217406afe (\"drm: use mgr->dev in drm_dbg_kms in drm_dp_add_payload_part2\") which cause regression. [How] Recover the original NULL fix and remove the unnecessary input parameter 'state' for drm_dp_add_payload_part2(). (cherry picked from commit 4545614c1d8da603e57b60dd66224d81b6ffc305)",
    "evidence": "osv:CVE-2024-39498",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
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        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.9.6",
            "evidence": "/affected/1/ranges"
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        "affected_versions": []
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    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-39498",
      "aliases": [
        "CVE-2024-39498"
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      "affected": [
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                  "fixed": "8e21de5f99b2368a5155037ce0aae8aaba3f5241"
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                {
                  "fixed": "5a507b7d2be15fddb95bf8dee01110b723e2bcd9"
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            {
              "type": "ECOSYSTEM",
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                  "introduced": "6.7.0"
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            "ecosystem": "Linux"
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      ],
      "modified": "2026-10-28T02:30:26.433435801Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/5a507b7d2be15fddb95bf8dee01110b723e2bcd9",
        "https://git.kernel.org/stable/c/8e21de5f99b2368a5155037ce0aae8aaba3f5241",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/39xxx/CVE-2024-39498.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-39498",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": null
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  "source_id": "core-osv",
  "document_id": 492687,
  "published_at": "2024-07-12T12:20:32.98+00:00"
}