CVE-2026-98910 (GCVE-0-2026-98910)

Vulnerability from cvelistv5 – Published: 2026-10-23 11:54 – Updated: 2026-10-26 06:56
VLAI
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.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6653 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508 , < 641be20110cdfb6d921605adb42a764a0fccac54 (git)
Affected: 0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508 , < 656a40bdc20def58790b8512e6000195436d8855 (git)
Affected: 0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508 , < 1b39f46eec2f907417d4955bb88434170f94a8d8 (git)
Affected: 0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508 , < 01112e241e37f9ac98b6f418d93ce2e0b87b7ee0 (git)
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Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.6.158 , ≤ 6.6.* (semver)
Unaffected: 6.12.111 , ≤ 6.12.* (semver)
Unaffected: 6.18.53 , ≤ 6.18.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdkfd/kfd_debug.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          "versions": [
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              "versionType": "git"
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          "vendor": "Linux",
          "versions": [
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              "version": "6.5"
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              "operator": "OR"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Unwind debug trap enable on copy_to_user failure\n\nIf kfd_dbg_trap_enable() fails while copying runtime_info to userspace,\nit had already activated the trap, set debug_trap_enabled, taken an extra\nprocess reference, and opened the debug event file. Return -EFAULT without\nunwinding that state, leaving inconsistent trap state and a refcount\nimbalance that could break later DISABLE/ENABLE.\n\nOn copy_to_user failure, deactivate the trap and undo the rest of the\nenable setup before returning."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-26T06:56:40.297Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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    "dateReserved": "2026-09-25T10:25:14.379Z",
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    "state": "PUBLISHED"
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      "date": "2026-11-08",
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      "percentile": "0.06923"
    },
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      "id": "msrc_CVE-2026-98910",
      "initial_release_date": "2026-10-24T01:05:35.000Z",
      "product_status:fixed": "1",
      "product_status:known_affected": "1",
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      "status": "final",
      "title": "drm/amdkfd: Unwind debug trap enable on copy_to_user failure",
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      "version": "4"
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          }
        ],
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        "lastModified": "2026-10-26T07:17:16.370",
        "metrics": {},
        "published": "2026-10-23T12:18:25.130",
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}



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