drm/amdkfd: Unwind debug trap enable on copy_to_user failure

{
  "id": "4da2a62f6ac19d4d4a94081d3713ea815c75207bdd618f706d9639d39e6f8e43",
  "url": "https://osv.dev/vulnerability/CVE-2026-98910",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/amdkfd: Unwind debug trap enable on copy_to_user failure",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Unwind debug trap enable on copy_to_user failure If kfd_dbg_trap_enable() fails while copying runtime_info to userspace, it had already activated the trap, set debug_trap_enabled, taken an extra process reference, and opened the debug event file. Return -EFAULT without unwinding that state, leaving inconsistent trap state and a refcount imbalance that could break later DISABLE/ENABLE. On copy_to_user failure, deactivate the trap and undo the rest of the enable setup before returning.",
    "evidence": "osv:CVE-2026-98910",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.158",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.111",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.53",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-98910",
      "aliases": [
        "CVE-2026-98910"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508"
                },
                {
                  "fixed": "641be20110cdfb6d921605adb42a764a0fccac54"
                },
                {
                  "fixed": "656a40bdc20def58790b8512e6000195436d8855"
                },
                {
                  "fixed": "1b39f46eec2f907417d4955bb88434170f94a8d8"
                },
                {
                  "fixed": "01112e241e37f9ac98b6f418d93ce2e0b87b7ee0"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98910.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.5.0"
                },
                {
                  "fixed": "6.6.158"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.111"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.53"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98910.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:48.688569125Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/01112e241e37f9ac98b6f418d93ce2e0b87b7ee0",
        "https://git.kernel.org/stable/c/1b39f46eec2f907417d4955bb88434170f94a8d8",
        "https://git.kernel.org/stable/c/641be20110cdfb6d921605adb42a764a0fccac54",
        "https://git.kernel.org/stable/c/656a40bdc20def58790b8512e6000195436d8855",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98910.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-98910",
        "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/2026/98xxx/CVE-2026-98910.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-98910",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 517112,
  "published_at": "2026-10-23T11:54:50.52+00:00"
}