{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "ff5f643de0bf27874c4033cd57a0bd034b5c7d11"
            },
            {
              "fixed": "1f1f2618e44b21a7d4eb30d3bbd7e015ffbbbadf"
            },
            {
              "fixed": "6253bb56bb2ebdf317d8b599ce737a2510cc2e17"
            },
            {
              "fixed": "15f58d44c24477a6ebffa44ec05207b81cfa55d9"
            },
            {
              "fixed": "17e2030f37600994440f875dc410615d5c66ee6d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.8.0"
            },
            {
              "fixed": "6.12.101"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.42"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68260.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/imagination: acquire vm_ctx-\u003elock 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[\u003cffffffff01e989d4\u003e] drm_gpuva_find+0x28/0x6c [drm_gpuvm]\n[\u003cffffffff01ed3a40\u003e] pvr_vm_unmap+0x34/0x68 [powervr]\n[\u003cffffffff01ec69da\u003e] pvr_ioctl_vm_unmap+0x2e/0x50 [powervr]\n[\u003cffffffff8080ce0a\u003e] drm_ioctl_kernel+0x8e/0xdc\n[\u003cffffffff8080d016\u003e] drm_ioctl+0x1be/0x3e0\n[\u003cffffffff802bec3e\u003e] __riscv_sys_ioctl+0xba/0xc4\n[\u003cffffffff80d858b2\u003e] do_trap_ecall_u+0x23e/0x3f4\n[\u003cffffffff80d92288\u003e] handle_exception+0x168/0x174\n```\n\nAs all occurences of drm_gpuva_find*() are already guarded by\nvm_ctx-\u003elock, make pvr_vm_map() to acquire this lock to prevent\ndisturbing any find operation. This fixes the NULL deference problem in\ndrm_gpuva_find*().",
  "id": "CVE-2026-68260",
  "modified": "2026-08-18T03:31:04.015631374Z",
  "published": "2026-08-10T12:01:34.414Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/15f58d44c24477a6ebffa44ec05207b81cfa55d9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/17e2030f37600994440f875dc410615d5c66ee6d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1f1f2618e44b21a7d4eb30d3bbd7e015ffbbbadf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6253bb56bb2ebdf317d8b599ce737a2510cc2e17"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68260.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68260"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "drm/imagination: acquire vm_ctx-\u003elock before mapping memory to GPU VM"
}