Vulnerability-Lookup

FKIE_CVE-2023-53620

Vulnerability from fkie_nvd - Published: 2025-10-07 16:15 - Updated: 2026-02-05 14:50

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: md: fix soft lockup in status_resync status_resync() will calculate 'curr_resync - recovery_active' to show user a progress bar like following: [============>........] resync = 61.4% 'curr_resync' and 'recovery_active' is updated in md_do_sync(), and status_resync() can read them concurrently, hence it's possible that 'curr_resync - recovery_active' can overflow to a huge number. In this case status_resync() will be stuck in the loop to print a large amount of '=', which will end up soft lockup. Fix the problem by setting 'resync' to MD_RESYNC_ACTIVE in this case, this way resync in progress will be reported to user.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/23309704e90859af2662bedc44101e6d1d2ece7e	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6efddf1e32e2a264694766ca485a4f5e04ee82a7	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b4acb6c3ede88d6b7d33742a09e63cfce5e7fb69	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	2.6.12
linux	linux_kernel	2.6.12
linux	linux_kernel	2.6.12
linux	linux_kernel	2.6.12
linux	linux_kernel	2.6.12

JSON

To clipboard

{
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              "versionEndExcluding": "6.1.30",
              "versionStartIncluding": "2.6.12.1",
              "vulnerable": true
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              "matchCriteriaId": "26C54BF0-3EED-46D4-92A7-5F07F658B49B",
              "versionEndExcluding": "6.3.4",
              "versionStartIncluding": "6.2",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd: fix soft lockup in status_resync\n\nstatus_resync() will calculate \u0027curr_resync - recovery_active\u0027 to show\nuser a progress bar like following:\n\n[============\u003e........]  resync = 61.4%\n\n\u0027curr_resync\u0027 and \u0027recovery_active\u0027 is updated in md_do_sync(), and\nstatus_resync() can read them concurrently, hence it\u0027s possible that\n\u0027curr_resync - recovery_active\u0027 can overflow to a huge number. In this\ncase status_resync() will be stuck in the loop to print a large amount\nof \u0027=\u0027, which will end up soft lockup.\n\nFix the problem by setting \u0027resync\u0027 to MD_RESYNC_ACTIVE in this case,\nthis way resync in progress will be reported to user."
    }
  ],
  "id": "CVE-2023-53620",
  "lastModified": "2026-02-05T14:50:21.203",
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          "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"
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        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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}

CVE-2023-53620 (GCVE-0-2023-53620)

Vulnerability from cvelistv5 – Published: 2025-10-07 15:19 – Updated: 2026-01-05 10:32

Title

md: fix soft lockup in status_resync

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/b4acb6c3ede88d6b7…
	https://git.kernel.org/stable/c/23309704e90859af2…
	https://git.kernel.org/stable/c/6efddf1e32e2a2646…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b4acb6c3ede88d6b7d33742a09e63cfce5e7fb69 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 23309704e90859af2662bedc44101e6d1d2ece7e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6efddf1e32e2a264694766ca485a4f5e04ee82a7 (git)

Linux

Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 6.1.30 , ≤ 6.1.* (semver)
Unaffected: 6.3.4 , ≤ 6.3.* (semver)
Unaffected: 6.4 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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          "programFiles": [
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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-2023-53620

CVE-2023-53620 (GCVE-0-2023-53620)

Tags

Sightings

Nomenclature