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btrfs: send: check for inline extents in range_is_hole_in_parent()

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: btrfs: send: check for inline extents in range_is_hole_in_parent() Before accessing the disk_bytenr field of a file extent item we need to check if we are dealing with an inline extent. This is because for inline extents their data starts at the offset of the disk_bytenr field. So accessing the disk_bytenr means we are accessing inline data or in case the inline data is less than 8 bytes we can actually cause an invalid memory access if this inline extent item is the first item in the leaf or access metadata from other items.

Products
Kernel
Affected versions
Not specified
Fixed versions
5.15.209, 6.1.167, 6.12.67, 6.18.7, 6.6.122
CVEs
CVE-2026-23141
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 06:49 UTC · Revision 1

Source evidence

btrfs: send: check for inline extents in range_is_hole_in_parent()

core-osv · Original source

Published 14 Feb 2026, 15:36 UTC

In the Linux kernel, the following vulnerability has been resolved: btrfs: send: check for inline extents in range_is_hole_in_parent() Before accessing the disk_bytenr field of a file extent item we need to check if we are dealing with an inline extent. This is because for inline extents their data starts at the offset of the disk_bytenr field. So accessing the disk_bytenr means we are accessing inline data or in case the inline data is less than 8 bytes we can actually cause an invalid memory access if this inline extent item is the first item in the leaf or access metadata from other items.

osv:CVE-2026-23141

Kernel

Fixed versions: 5.15.209, 6.1.167, 6.6.122, 6.12.67, 6.18.7

Complete source record
{
  "id": "c01b16f422c36d0baa529f3783e8df6877f3d43abd5333021a0f7bc95e49ac7d",
  "url": "https://osv.dev/vulnerability/CVE-2026-23141",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "btrfs: send: check for inline extents in range_is_hole_in_parent()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: btrfs: send: check for inline extents in range_is_hole_in_parent() Before accessing the disk_bytenr field of a file extent item we need to check if we are dealing with an inline extent. This is because for inline extents their data starts at the offset of the disk_bytenr field. So accessing the disk_bytenr means we are accessing inline data or in case the inline data is less than 8 bytes we can actually cause an invalid memory access if this inline extent item is the first item in the leaf or access metadata from other items.",
    "evidence": "osv:CVE-2026-23141",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.15.209",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.167",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.122",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.67",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.7",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-23141",
      "aliases": [
        "CVE-2026-23141"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "introduced": "82bfb2e7b645c8f228dc3b6d3b27b0b10125ca4f"
                },
                {
                  "fixed": "901e581bfc44d181f7d9c3f11880dac3e89deb2e"
                },
                {
                  "fixed": "d948055bd46a9c14d1d4217aed65c5c258c32903"
                },
                {
                  "fixed": "f2dc6ab3a14c2d2eb0b14783427eb9b03bf631c9"
                },
                {
                  "fixed": "db00636643e66898d79f2530ac9c56ebd5eca369"
                },
                {
                  "fixed": "39f83f10772310ba4a77f2b5256aaf36994ef7e8"
                },
                {
                  "fixed": "08b096c1372cd69627f4f559fb47c9fb67a52b39"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23141.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.11.0"
                },
                {
                  "fixed": "5.15.209"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.167"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.122"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.67"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.7"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23141.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:26.571000157Z",
      "provider": "osv",
      "references": [
        "https://cert-portal.siemens.com/productcert/html/ssa-784472.html",
        "https://git.kernel.org/stable/c/08b096c1372cd69627f4f559fb47c9fb67a52b39",
        "https://git.kernel.org/stable/c/39f83f10772310ba4a77f2b5256aaf36994ef7e8",
        "https://git.kernel.org/stable/c/901e581bfc44d181f7d9c3f11880dac3e89deb2e",
        "https://git.kernel.org/stable/c/d948055bd46a9c14d1d4217aed65c5c258c32903",
        "https://git.kernel.org/stable/c/db00636643e66898d79f2530ac9c56ebd5eca369",
        "https://git.kernel.org/stable/c/f2dc6ab3a14c2d2eb0b14783427eb9b03bf631c9",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23141.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-23141",
        "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/2026/23xxx/CVE-2026-23141.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-23141",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 493141,
  "published_at": "2026-02-14T15:36:07.417+00:00"
}