CVE-2025-40200 (GCVE-0-2025-40200)
Vulnerability from cvelistv5
Published
2025-11-12 21:56
Modified
2025-11-12 21:56
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: Squashfs: reject negative file sizes in squashfs_read_inode() Syskaller reports a "WARNING in ovl_copy_up_file" in overlayfs. This warning is ultimately caused because the underlying Squashfs file system returns a file with a negative file size. This commit checks for a negative file size and returns EINVAL. [phillip@squashfs.org.uk: only need to check 64 bit quantity]
References
Impacted products
Vendor Product Version
Linux Linux Version: 6545b246a2c815a8fcd07d58240effb6ec3481b1
Version: 6545b246a2c815a8fcd07d58240effb6ec3481b1
Version: 6545b246a2c815a8fcd07d58240effb6ec3481b1
Version: 6545b246a2c815a8fcd07d58240effb6ec3481b1
Version: 6545b246a2c815a8fcd07d58240effb6ec3481b1
Version: 6545b246a2c815a8fcd07d58240effb6ec3481b1
Version: 6545b246a2c815a8fcd07d58240effb6ec3481b1
Version: 6545b246a2c815a8fcd07d58240effb6ec3481b1
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/squashfs/inode.c"
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          "vendor": "Linux",
          "versions": [
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            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "5.4.301",
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            },
            {
              "lessThanOrEqual": "5.10.*",
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            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.195",
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              "status": "unaffected",
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            {
              "lessThanOrEqual": "6.6.*",
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              "version": "6.18-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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              ],
              "negate": false,
              "operator": "OR"
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nSquashfs: reject negative file sizes in squashfs_read_inode()\n\nSyskaller reports a \"WARNING in ovl_copy_up_file\" in overlayfs.\n\nThis warning is ultimately caused because the underlying Squashfs file\nsystem returns a file with a negative file size.\n\nThis commit checks for a negative file size and returns EINVAL.\n\n[phillip@squashfs.org.uk: only need to check 64 bit quantity]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-11-12T21:56:33.783Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/54170057a5fadd24a37b70de41e61d39284d9bd7"
        },
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          "url": "https://git.kernel.org/stable/c/2871c74caa3f4f05b429e6bfefebac62dbf1b408"
        },
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          "url": "https://git.kernel.org/stable/c/fbfc745db628de31f5c089147deeb87e95b89e66"
        },
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          "url": "https://git.kernel.org/stable/c/8c7aad76751816207fee556d44aa88a710824810"
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        {
          "url": "https://git.kernel.org/stable/c/9f1c14c1de1bdde395f6cc893efa4f80a2ae3b2b"
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      "title": "Squashfs: reject negative file sizes in squashfs_read_inode()",
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40200",
    "datePublished": "2025-11-12T21:56:33.783Z",
    "dateReserved": "2025-04-16T07:20:57.178Z",
    "dateUpdated": "2025-11-12T21:56:33.783Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}


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