{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-98907",
  "modified": "2026-10-24T04:30:01Z",
  "upstream": [
    "CVE-2026-98907"
  ],
  "published": "2026-10-23T11:55:49Z",
  "summary": "btrfs: protect sb_write_pointer() with invalidate lock",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: protect sb_write_pointer() with invalidate lock\n\nsb_write_pointer() reads the super block from the block device page cache\nusing read_cache_page_gfp(). This has the same race with BLKBSZSET as the\none fixed by commit 3f29d661e568 (\"btrfs: sync read disk super and set\nblock size\").\n\nTake the mapping invalidate lock around read_cache_page_gfp() to\nserialize the read against block size changes.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.189",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-98907"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c9b38f2eab5a9bd74087390318d93ccdd8d2deff"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a0dc28359a8a26f970ccd250b126a2e0bd4118a5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1a6c92aa7242a04e4349c0ea213dbf703a1c9891"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a58cab4535f085adc0f93d7efd7952ef437371da"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/80cd97c5e90096d040a623851795eac92fbd0ff1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/123b9a545f4d0348e81f558a032bf2a93ee5722f"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-10-23T11:55:49Z"
  }
}