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block: refine the EOF check in blkdev_iomap_begin

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: block: refine the EOF check in blkdev_iomap_begin blkdev_iomap_begin rounds down the offset to the logical block size before stashing it in iomap->offset and checking that it still is inside the inode size. Check the i_size check to the raw pos value so that we don't try a zero size write if iter->pos is unaligned.

Products
Kernel
Affected versions
Not specified
Fixed versions
6.6.33, 6.8.12, 6.9.3
CVEs
CVE-2024-38604
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 16:58 UTC · Revision 1

Source evidence

block: refine the EOF check in blkdev_iomap_begin

core-osv · Original source

Published 19 Jun 2024, 13:48 UTC

In the Linux kernel, the following vulnerability has been resolved: block: refine the EOF check in blkdev_iomap_begin blkdev_iomap_begin rounds down the offset to the logical block size before stashing it in iomap->offset and checking that it still is inside the inode size. Check the i_size check to the raw pos value so that we don't try a zero size write if iter->pos is unaligned.

osv:CVE-2024-38604

Kernel

Fixed versions: 6.6.33, 6.8.12, 6.9.3

Complete source record
{
  "id": "88fc9031c689fb87b095aeba5197b8c215ea47a7f40cdea81ffa25d38ac06886",
  "url": "https://osv.dev/vulnerability/CVE-2024-38604",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "block: refine the EOF check in blkdev_iomap_begin",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: block: refine the EOF check in blkdev_iomap_begin blkdev_iomap_begin rounds down the offset to the logical block size before stashing it in iomap->offset and checking that it still is inside the inode size. Check the i_size check to the raw pos value so that we don't try a zero size write if iter->pos is unaligned.",
    "evidence": "osv:CVE-2024-38604",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.6.33",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.8.12",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.9.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-38604",
      "aliases": [
        "CVE-2024-38604"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "487c607df790d366e67a7d6a30adf785cdd98e55"
                },
                {
                  "fixed": "910717920c8c3f9386277a44c44d448058a18084"
                },
                {
                  "fixed": "72c54e063c32aeb38d43a2bd897821e6e5a1757d"
                },
                {
                  "fixed": "10b723bcba8986537a484aa94dbfc9093fd776a1"
                },
                {
                  "fixed": "0c12028aec837f5a002009bbf68d179d506510e8"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-38604.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.6.0"
                },
                {
                  "fixed": "6.6.33"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.8.12"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.9.0"
                },
                {
                  "fixed": "6.9.3"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-38604.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:37.782253909Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0c12028aec837f5a002009bbf68d179d506510e8",
        "https://git.kernel.org/stable/c/10b723bcba8986537a484aa94dbfc9093fd776a1",
        "https://git.kernel.org/stable/c/72c54e063c32aeb38d43a2bd897821e6e5a1757d",
        "https://git.kernel.org/stable/c/910717920c8c3f9386277a44c44d448058a18084",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/38xxx/CVE-2024-38604.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-38604",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/38xxx/CVE-2024-38604.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-38604",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 505010,
  "published_at": "2024-06-19T13:48:15.099+00:00"
}