{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/accel/amdxdna/aie2_ctx.c",
            "drivers/accel/amdxdna/amdxdna_gem.c",
            "drivers/accel/amdxdna/amdxdna_gem.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "bea20225c67fed9be3e98619c77af6ee3f43fe07",
              "status": "affected",
              "version": "e486147c912f653ef4b60a6c7dbd4168a4c56a9f",
              "versionType": "git"
            },
            {
              "lessThan": "1ba02717e821cf14ece642273958647e79698d3d",
              "status": "affected",
              "version": "e486147c912f653ef4b60a6c7dbd4168a4c56a9f",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/accel/amdxdna/aie2_ctx.c",
            "drivers/accel/amdxdna/amdxdna_gem.c",
            "drivers/accel/amdxdna/amdxdna_gem.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "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": "7.1.5",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Fix VMA access race\n\naie2_populate_range() and amdxdna_umap_release() access a saved VMA\npointer that may have already been freed, leading to a potential\nuse-after-free.\n\nRemove the VMA accesses from these functions to avoid the race."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is reached only via local syscalls on the AMD XDNA DRM accel render node (open, DRM_IOCTL_AMDXDNA_CREATE_BO/EXEC_CMD, mmap/munmap) in drivers/accel/amdxdna; there is no network-facing handler.\nAC:L - The UAF is a mmap/munmap versus deferred amdxdna_umap_release/aie2_populate_range race; a local attacker controls both sides with concurrent threads and can reliably trigger MMU_NOTIFY_UNMAP while work still holds a stale vma pointer.\nPR:L - All vulnerable ioctls use DRM_AUTH (flag 0) and only DRM_ROOT_ONLY SET_STATE is excluded; exploitation needs local access to the render node, which unprivileged users typically have via the render group, not real root.\nUI:N - No victim interaction is required; the attacker opens the device, imports/maps buffers, and races munmap or command submission in their own process to hit the freed VMA.\nS:U - Impact is kernel heap corruption and privilege escalation within the host kernel via a local DRM client; it does not cross a VM, container, or IOMMU security boundary.\nC:H - Use-after-free of a freed vm_area_struct and vm_file in amdxdna_umap_release (and stale vma reads in aie2_populate_range) can expose adjacent kernel memory and be weaponized for arbitrary kernel read primitives.\nI:H - UAF on vma/vm_file during mapping_clear_unevictable enables corrupting kernel objects and control data, supporting heap grooming and arbitrary kernel write or code execution for local privilege escalation.\nA:H - Dereferencing a freed VMA in kernel context can cause oops/panic or wedged NPU workloads; UAF in this path is independently sufficient for complete local denial of service even if exploitation fails."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:42:53.397Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/bea20225c67fed9be3e98619c77af6ee3f43fe07"
        },
        {
          "url": "https://git.kernel.org/stable/c/1ba02717e821cf14ece642273958647e79698d3d"
        }
      ],
      "title": "accel/amdxdna: Fix VMA access race",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72331",
    "datePublished": "2026-08-15T05:55:41.196Z",
    "dateReserved": "2026-08-09T03:40:39.919Z",
    "dateUpdated": "2026-08-17T05:42:53.397Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}