CVE-2026-98910

Full vulnerability record from the local CVENow database.

Description

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

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-10-23 12:18:25.130000

Last modified

2026-10-26 07:17:16.370000

View original CVE JSON

{
  "id": "CVE-2026-98910",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-10-23T12:18:25.130",
  "lastModified": "2026-10-26T07:17:16.370",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "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."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/gpu/drm/amd/amdkfd/kfd_debug.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508",
              "lessThan": "641be20110cdfb6d921605adb42a764a0fccac54",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508",
              "lessThan": "656a40bdc20def58790b8512e6000195436d8855",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508",
              "lessThan": "1b39f46eec2f907417d4955bb88434170f94a8d8",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "0ab2d7532b05a3e7c06fd3b0c8bd6b46c1dfb508",
              "lessThan": "01112e241e37f9ac98b6f418d93ce2e0b87b7ee0",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/gpu/drm/amd/amdkfd/kfd_debug.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.5",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "6.5",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.158",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.111",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.53",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/01112e241e37f9ac98b6f418d93ce2e0b87b7ee0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/1b39f46eec2f907417d4955bb88434170f94a8d8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/641be20110cdfb6d921605adb42a764a0fccac54",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/656a40bdc20def58790b8512e6000195436d8855",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}