{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2023-52810",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2023-52810"
  ],
  "published": "2024-05-21T15:34:20Z",
  "summary": "fs/jfs: Add check for negative db_l2nbperpage",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/jfs: Add check for negative db_l2nbperpage\n\nl2nbperpage is log2(number of blks per page), and the minimum legal\nvalue should be 0, not negative.\n\nIn the case of l2nbperpage being negative, an error will occur\nwhen subsequently used as shift exponent.\n\nSyzbot reported this bug:\n\nUBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:799:12\nshift exponent -16777216 is negative",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.21-1+rpt1",
        "1:6.1.47-1+rpt2",
        "1:6.1.47-1+rpt4",
        "1:6.1.54-1+rpt2",
        "1:6.1.58-1+rpt2",
        "1:6.1.63-1+rpt1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v6",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v7",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v7l",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi1-rpi-v8",
            "binary_version": "1:6.1.21-1+rpt1"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi2-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt2"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi2-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt2"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi2-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt2"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi2-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt2"
          },
          {
            "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"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi4-rpi-2712",
            "binary_version": "1:6.1.54-1+rpt2"
          },
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            "binary_version": "1:6.1.54-1+rpt2"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi4-rpi-v7",
            "binary_version": "1:6.1.54-1+rpt2"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi4-rpi-v7l",
            "binary_version": "1:6.1.54-1+rpt2"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi4-rpi-v8",
            "binary_version": "1:6.1.54-1+rpt2"
          },
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            "binary_name": "linux-image-6.1.0-rpi6-rpi-2712",
            "binary_version": "1:6.1.58-1+rpt2"
          },
          {
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          },
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          },
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            "binary_version": "1:6.1.58-1+rpt2"
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            "binary_version": "1:6.1.58-1+rpt2"
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            "binary_version": "1:6.1.63-1+rpt1"
          },
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            "binary_name": "linux-image-6.1.0-rpi7-rpi-v7",
            "binary_version": "1:6.1.63-1+rpt1"
          },
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            "binary_name": "linux-image-6.1.0-rpi7-rpi-v7l",
            "binary_version": "1:6.1.63-1+rpt1"
          },
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            "binary_version": "1:6.1.63-1+rpt1"
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        ]
      },
      "database_specific": {
        "per_version": {
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            "linux_commit": "0afb5e98488aed7017b9bf321b575d0177feb7ed",
            "upstream_version": "6.1.21",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.64"
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            "compiled_filter": false
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            "assessment": "commit ancestry (strak rule)",
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            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.64"
          },
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            "linux_commit": null,
            "upstream_version": "6.1.63",
            "assessment": "upstream version (no usable Linux commit)",
            "upstream_fixed": "6.1.64"
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-52810"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/cc61fcf7d1c99f148fe8ddfb5c6ed0bb75861f01"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8f2964df6bfce9d92d81ca552010b8677af8d9dc"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a81a56b4cbe3142cc99f6b98e8f9b3a631c768e1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/524b4f203afcf87accfe387e846f33f916f0c907"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5f148b16972e5f4592629b244d5109b15135f53f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0cb567e727339a192f9fd0db00781d73a91d15a6"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/491085258185ffc4fb91555b0dba895fe7656a45"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1a7c53fdea1d189087544d9a606d249e93c4934b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/525b861a008143048535011f3816d407940f4bfa"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T11:24:39Z"
  }
}