Vulnerability-Lookup

GHSA-9WGP-44PJ-7G49

Vulnerability from github – Published: 2026-10-23 12:31 – Updated: 2026-10-23 12:31

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-98910"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-23T12:18:25Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-9wgp-44pj-7g49",
  "modified": "2026-10-23T12:31:37Z",
  "published": "2026-10-23T12:31:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98910"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/01112e241e37f9ac98b6f418d93ce2e0b87b7ee0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1b39f46eec2f907417d4955bb88434170f94a8d8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/641be20110cdfb6d921605adb42a764a0fccac54"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/656a40bdc20def58790b8512e6000195436d8855"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

Vulnerability from cvelistv5 – Published: 2026-10-23 11:54 – Updated: 2026-10-26 06:56

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 7067 records in the last 180 days details

References

4 references

URL	Tags
https://git.kernel.org/stable/c/641be20110cdfb6d9…
https://git.kernel.org/stable/c/656a40bdc20def587…
https://git.kernel.org/stable/c/1b39f46eec2f90741…
https://git.kernel.org/stable/c/01112e241e37f9ac9…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508 , < 641be20110cdfb6d921605adb42a764a0fccac54 (git) Affected: 0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508 , < 656a40bdc20def58790b8512e6000195436d8855 (git) Affected: 0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508 , < 1b39f46eec2f907417d4955bb88434170f94a8d8 (git) Affected: 0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508 , < 01112e241e37f9ac98b6f418d93ce2e0b87b7ee0 (git)
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": {
    "cna": {
      "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",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "641be20110cdfb6d921605adb42a764a0fccac54",
              "status": "affected",
              "version": "0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508",
              "versionType": "git"
            },
            {
              "lessThan": "656a40bdc20def58790b8512e6000195436d8855",
              "status": "affected",
              "version": "0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508",
              "versionType": "git"
            },
            {
              "lessThan": "1b39f46eec2f907417d4955bb88434170f94a8d8",
              "status": "affected",
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              "versionType": "git"
            }
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        },
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          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdkfd/kfd_debug.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.5"
            },
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              "lessThan": "6.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.158",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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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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          "url": "https://git.kernel.org/stable/c/01112e241e37f9ac98b6f418d93ce2e0b87b7ee0"
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98910",
    "datePublished": "2026-10-23T11:54:50.520Z",
    "dateReserved": "2026-09-25T10:25:14.379Z",
    "dateUpdated": "2026-10-26T06:56:40.297Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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