drm/ttm: Fix ttm_bo_swapout() infinite LRU walk on swapout failure

{
  "id": "c7784f8012e21cb85c7c98740677babb6c6ade707ebae9c65974f40ab3baa3e0",
  "url": "https://osv.dev/vulnerability/CVE-2026-52965",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/ttm: Fix ttm_bo_swapout() infinite LRU walk on swapout failure",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Fix ttm_bo_swapout() infinite LRU walk on swapout failure When ttm_tt_swapout() fails, the current code calls ttm_resource_add_bulk_move() followed by ttm_resource_move_to_lru_tail() to restore the resource's bulk_move membership. However, ttm_resource_move_to_lru_tail() places the resource at the tail of the LRU list which, relative to the walk cursor's hitch node (placed immediately after the resource when it was yielded), puts the resource *in front of the* the hitch. The next list_for_each_entry_continue() from the hitch finds the same resource again, causing an infinite loop. Fix by deferring del_bulk_move to the success path only. On the success path, TTM_TT_FLAG_SWAPPED has just been set by ttm_tt_swapout() but the resource is still tracked in the bulk_move range, so ttm_resource_del_bulk_move()'s !ttm_resource_unevictable() guard would incorrectly skip the removal. Introduce ttm_resource_del_bulk_move_unevictable() which bypasses that guard.",
    "evidence": "osv:CVE-2026-52965",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "value": "6.18.57",
            "evidence": "/affected/1/ranges"
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          {
            "value": "7.0.10",
            "evidence": "/affected/1/ranges"
          }
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        "affected_versions": []
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    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-52965",
      "aliases": [
        "CVE-2026-52965"
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      "affected": [
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                  "fixed": "0124a09e3e5f5f6080efe9663b27af27933f8382"
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          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
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                  "fixed": "6.18.57"
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            {
              "type": "ECOSYSTEM",
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            "ecosystem": "Linux"
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      "modified": "2026-10-28T02:30:51.501390243Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0124a09e3e5f5f6080efe9663b27af27933f8382",
        "https://git.kernel.org/stable/c/060f8f3020516d71bc4d6159d4d0beef85606a74",
        "https://git.kernel.org/stable/c/b2ed01e7ad3de80333e9b962a44024b094bc0b2b",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52965.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-52965",
        "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/2026/52xxx/CVE-2026-52965.json"
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    "related_cves": [
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        "value": "CVE-2026-52965",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": null
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  "source_id": "core-osv",
  "document_id": 520133,
  "published_at": "2026-06-24T16:28:45.09+00:00"
}