{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "d361ad5d2fc0e4d59d5d538092c9b37889756642"
            },
            {
              "fixed": "201633f47b542a99bb7baafdfcda7781249fb3d9"
            },
            {
              "fixed": "e28420e36542ae8b66a5bdcec419525f521bddf8"
            },
            {
              "fixed": "9cd9a983769a4d0e9cc80a287316ee79685d38b3"
            },
            {
              "fixed": "3e864bf2a32a1cbdf1e0f9c5a5a4176e8575f4a3"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.12.0"
            },
            {
              "fixed": "6.12.103"
            }
          ],
          "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-2026-68276.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/gfx: fix cleaner shader IB buffer overflow\n\nThe cleaner shader sysfs path allocates a 16-dword (64 byte) IB but\nincorrectly fills (align_mask + 1) dwords. On GFX rings align_mask is\n0xff, so the loop wrote 256 dwords into a 64-byte buffer, causing a\nkernel page fault.\n\nThe IB only needs to be a minimal NOP shell to schedule the job; the\ncleaner shader itself is emitted on the ring via emit_cleaner_shader().\nFill 16 dwords to match the allocation.\n\nv2: Use ib_size_dw variable (Lijo)\n\n(cherry picked from commit bf21af331ebf72d0935fd70c73192414a422c03a)",
  "id": "CVE-2026-68276",
  "modified": "2026-08-12T03:51:46.132452125Z",
  "published": "2026-08-10T12:01:51.789Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/201633f47b542a99bb7baafdfcda7781249fb3d9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3e864bf2a32a1cbdf1e0f9c5a5a4176e8575f4a3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9cd9a983769a4d0e9cc80a287316ee79685d38b3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e28420e36542ae8b66a5bdcec419525f521bddf8"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68276.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68276"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "drm/amdgpu/gfx: fix cleaner shader IB buffer overflow"
}