{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-68260",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-68260",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-10T12:01:34.414Z",
    "updatedAt": "2026-08-17T05:01:52.352Z",
    "importedAt": "2026-10-24T01:58:25.636Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "drm/imagination: acquire vm_ctx->lock before mapping memory to GPU VM",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/imagination: acquire vm_ctx->lock before mapping memory to GPU VM\n\nThe drm gpuvm code doesn't protect find operation against map operation,\nand the driver needs to ensure a map operation shouldn't happen when a\nfind operation is in progress.\n\nIn some cases a find operation will be in progress when doing map/unmap\noperations, and the find operation will do a NULL pointer dereference.\n\nAn example of the stack trace of such NULL dereference is shown below:\n\n```\nUnable to handle kernel access to user memory without uaccess routines at\nvirtual address 0000000000000010\n\n[<ffffffff01e989d4>] drm_gpuva_find+0x28/0x6c [drm_gpuvm]\n[<ffffffff01ed3a40>] pvr_vm_unmap+0x34/0x68 [powervr]\n[<ffffffff01ec69da>] pvr_ioctl_vm_unmap+0x2e/0x50 [powervr]\n[<ffffffff8080ce0a>] drm_ioctl_kernel+0x8e/0xdc\n[<ffffffff8080d016>] drm_ioctl+0x1be/0x3e0\n[<ffffffff802bec3e>] __riscv_sys_ioctl+0xba/0xc4\n[<ffffffff80d858b2>] do_trap_ecall_u+0x23e/0x3f4\n[<ffffffff80d92288>] handle_exception+0x168/0x174\n```\n\nAs all occurences of drm_gpuva_find*() are already guarded by\nvm_ctx->lock, make pvr_vm_map() to acquire this lock to prevent\ndisturbing any find operation. This fixes the NULL deference problem in\ndrm_gpuva_find*().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "ff5f643de0bf27874c4033cd57a0bd034b5c7d11",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1f1f2618e44b21a7d4eb30d3bbd7e015ffbbbadf"
            },
            {
              "version": "ff5f643de0bf27874c4033cd57a0bd034b5c7d11",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6253bb56bb2ebdf317d8b599ce737a2510cc2e17"
            },
            {
              "version": "ff5f643de0bf27874c4033cd57a0bd034b5c7d11",
              "status": "affected",
              "versionType": "git",
              "lessThan": "15f58d44c24477a6ebffa44ec05207b81cfa55d9"
            },
            {
              "version": "ff5f643de0bf27874c4033cd57a0bd034b5c7d11",
              "status": "affected",
              "versionType": "git",
              "lessThan": "17e2030f37600994440f875dc410615d5c66ee6d"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.8",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.8"
            },
            {
              "version": "6.12.101",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.42",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}