{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "6856e4b65f64eeb3f17148f79b36c1d60c627529"
            },
            {
              "fixed": "1db431380879fd9d28b763a88a0c0431be5be8df"
            },
            {
              "fixed": "32b153658f017ad2f5bf8aab479e8d16ac95bc3a"
            },
            {
              "fixed": "77d0b5d11387071770246fd0185a69fa28e8e109"
            },
            {
              "fixed": "047d44d8d29a6a1a5757256837aa9dd78e3cd0b5"
            },
            {
              "fixed": "ad52d61d82181dbdb7f05826de38352d5e550cc2"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.4.0"
            },
            {
              "fixed": "6.6.140"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.90"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.32"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46229.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Clear VRAM on allocation to prevent stale data exposure\n\nKFD VRAM allocations set AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE\nbut not AMDGPU_GEM_CREATE_VRAM_CLEARED, leaving freshly allocated\nVRAM with stale data from prior use observable by compute kernels.\n\nThe GEM ioctl path already sets VRAM_CLEARED for all userspace\nallocations via amdgpu_gem_create_ioctl() and\namdgpu_mode_dumb_create(). The KFD path was missing this flag,\nallowing stale page table remnants to leak into user buffers.\n\nThis causes crashes in RCCL P2P transport where non-zero data in\nptrExchange/head/tail fields corrupts the protocol handshake.",
  "id": "CVE-2026-46229",
  "modified": "2026-07-08T05:38:59.634220269Z",
  "published": "2026-05-28T09:40:51.300Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/047d44d8d29a6a1a5757256837aa9dd78e3cd0b5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1db431380879fd9d28b763a88a0c0431be5be8df"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/32b153658f017ad2f5bf8aab479e8d16ac95bc3a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/77d0b5d11387071770246fd0185a69fa28e8e109"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ad52d61d82181dbdb7f05826de38352d5e550cc2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46229.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46229"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "drm/amdkfd: Clear VRAM on allocation to prevent stale data exposure"
}