Vulnerability-Lookup

FKIE_CVE-2026-23141

Vulnerability from fkie_nvd - Published: 2026-02-14 16:15 - Updated: 2026-03-25 11:16

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/08b096c1372cd69627f4f559fb47c9fb67a52b39	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/39f83f10772310ba4a77f2b5256aaf36994ef7e8	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d948055bd46a9c14d1d4217aed65c5c258c32903
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/db00636643e66898d79f2530ac9c56ebd5eca369	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f2dc6ab3a14c2d2eb0b14783427eb9b03bf631c9	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19
linux	linux_kernel	6.19

JSON

To clipboard

{
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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: send: check for inline extents in range_is_hole_in_parent()\n\nBefore accessing the disk_bytenr field of a file extent item we need\nto check if we are dealing with an inline extent.\nThis is because for inline extents their data starts at the offset of\nthe disk_bytenr field. So accessing the disk_bytenr\nmeans we are accessing inline data or in case the inline data is less\nthan 8 bytes we can actually cause an invalid\nmemory access if this inline extent item is the first item in the leaf\nor access metadata from other items."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nbtrfs: send: verificar extents en l\u00ednea en range_is_hole_in_parent()\n\nAntes de acceder al campo disk_bytenr de un elemento de extent de archivo, necesitamos verificar si estamos tratando con un extent en l\u00ednea.\nEsto se debe a que para los extents en l\u00ednea, sus datos comienzan en el desplazamiento del campo disk_bytenr. As\u00ed que acceder al disk_bytenr significa que estamos accediendo a datos en l\u00ednea o, en caso de que los datos en l\u00ednea sean menores de 8 bytes, podemos realmente causar un acceso a memoria inv\u00e1lido si este elemento de extent en l\u00ednea es el primer elemento en la hoja o acceder a metadatos de otros elementos."
    }
  ],
  "id": "CVE-2026-23141",
  "lastModified": "2026-03-25T11:16:19.240",
  "metrics": {
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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  },
  "published": "2026-02-14T16:15:54.163",
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      "tags": [
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  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "NVD-CWE-noinfo"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-23141 (GCVE-0-2026-23141)

Vulnerability from cvelistv5 – Published: 2026-02-14 15:36 – Updated: 2026-03-25 10:20

Title

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

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/d948055bd46a9c14d…
	https://git.kernel.org/stable/c/f2dc6ab3a14c2d2eb…
	https://git.kernel.org/stable/c/db00636643e66898d…
	https://git.kernel.org/stable/c/39f83f10772310ba4…
	https://git.kernel.org/stable/c/08b096c1372cd6962…

Impacted products

Vendor

Product

Version

Linux

Affected: 82bfb2e7b645c8f228dc3b6d3b27b0b10125ca4f , < d948055bd46a9c14d1d4217aed65c5c258c32903 (git)
Affected: 82bfb2e7b645c8f228dc3b6d3b27b0b10125ca4f , < f2dc6ab3a14c2d2eb0b14783427eb9b03bf631c9 (git)
Affected: 82bfb2e7b645c8f228dc3b6d3b27b0b10125ca4f , < db00636643e66898d79f2530ac9c56ebd5eca369 (git)
Affected: 82bfb2e7b645c8f228dc3b6d3b27b0b10125ca4f , < 39f83f10772310ba4a77f2b5256aaf36994ef7e8 (git)
Affected: 82bfb2e7b645c8f228dc3b6d3b27b0b10125ca4f , < 08b096c1372cd69627f4f559fb47c9fb67a52b39 (git)

Linux

Affected: 4.11
Unaffected: 0 , < 4.11 (semver)
Unaffected: 6.1.167 , ≤ 6.1.* (semver)
Unaffected: 6.6.122 , ≤ 6.6.* (semver)
Unaffected: 6.12.67 , ≤ 6.12.* (semver)
Unaffected: 6.18.7 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
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      "affected": [
        {
          "defaultStatus": "unaffected",
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          "programFiles": [
            "fs/btrfs/send.c"
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-23141

CVE-2026-23141 (GCVE-0-2026-23141)

Tags

Sightings

Nomenclature