Vulnerability-Lookup

FKIE_CVE-2023-53681

Vulnerability from fkie_nvd - Published: 2025-10-07 16:15 - Updated: 2026-02-03 18:25

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: bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent In some specific situations, the return value of __bch_btree_node_alloc may be NULL. This may lead to a potential NULL pointer dereference in caller function like a calling chain : btree_split->bch_btree_node_alloc->__bch_btree_node_alloc. Fix it by initializing the return value in __bch_btree_node_alloc.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4514847aee18d9391a0cf3aad75d3567c72795a4	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/587b4e8bb5dac682f09280ab35db4632b29d5ac4	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7ecea5ce3dc17339c280c75b58ac93d8c8620d9f	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/80fca8a10b604afad6c14213fdfd816c4eda3ee4	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a4405f6ee03323410d7b10966fd67b35f71b1944	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b070f29a61436f6f8a2e3abc7ea4f4be81695198	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f67b0e3081f2a24170280a33ac66f6b112083c03	Patch

Impacted products

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

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbcache: Fix __bch_btree_node_alloc to make the failure behavior consistent\n\nIn some specific situations, the return value of __bch_btree_node_alloc\nmay be NULL. This may lead to a potential NULL pointer dereference in\ncaller function like a calling chain :\nbtree_split-\u003ebch_btree_node_alloc-\u003e__bch_btree_node_alloc.\n\nFix it by initializing the return value in __bch_btree_node_alloc."
    }
  ],
  "id": "CVE-2023-53681",
  "lastModified": "2026-02-03T18:25:07.470",
  "metrics": {
    "cvssMetricV31": [
      {
        "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"
      }
    ]
  },
  "published": "2025-10-07T16:15:52.287",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-476"
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      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2023-53681 (GCVE-0-2023-53681)

Vulnerability from cvelistv5 – Published: 2025-10-07 15:21 – Updated: 2025-10-07 15:21

Title

bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/587b4e8bb5dac682f…
	https://git.kernel.org/stable/c/b070f29a61436f6f8…
	https://git.kernel.org/stable/c/a4405f6ee03323410…
	https://git.kernel.org/stable/c/f67b0e3081f2a2417…
	https://git.kernel.org/stable/c/7ecea5ce3dc17339c…
	https://git.kernel.org/stable/c/4514847aee18d9391…
	https://git.kernel.org/stable/c/80fca8a10b604afad…

Impacted products

Vendor

Product

Version

Linux

Affected: cafe563591446cf80bfbc2fe3bc72a2e36cf1060 , < 587b4e8bb5dac682f09280ab35db4632b29d5ac4 (git)
Affected: cafe563591446cf80bfbc2fe3bc72a2e36cf1060 , < b070f29a61436f6f8a2e3abc7ea4f4be81695198 (git)
Affected: cafe563591446cf80bfbc2fe3bc72a2e36cf1060 , < a4405f6ee03323410d7b10966fd67b35f71b1944 (git)
Affected: cafe563591446cf80bfbc2fe3bc72a2e36cf1060 , < f67b0e3081f2a24170280a33ac66f6b112083c03 (git)
Affected: cafe563591446cf80bfbc2fe3bc72a2e36cf1060 , < 7ecea5ce3dc17339c280c75b58ac93d8c8620d9f (git)
Affected: cafe563591446cf80bfbc2fe3bc72a2e36cf1060 , < 4514847aee18d9391a0cf3aad75d3567c72795a4 (git)
Affected: cafe563591446cf80bfbc2fe3bc72a2e36cf1060 , < 80fca8a10b604afad6c14213fdfd816c4eda3ee4 (git)

Linux

Affected: 3.10
Unaffected: 0 , < 3.10 (semver)
Unaffected: 4.19.291 , ≤ 4.19.* (semver)
Unaffected: 5.4.253 , ≤ 5.4.* (semver)
Unaffected: 5.10.188 , ≤ 5.10.* (semver)
Unaffected: 5.15.121 , ≤ 5.15.* (semver)
Unaffected: 6.1.39 , ≤ 6.1.* (semver)
Unaffected: 6.4.4 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/bcache/btree.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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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-2023-53681

CVE-2023-53681 (GCVE-0-2023-53681)

Tags

Sightings

Nomenclature