Vulnerability-Lookup

FKIE_CVE-2026-53327

Vulnerability from fkie_nvd - Published: 2026-07-01 14:16 - Updated: 2026-07-23 20:52

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: debugobjects: Do not fill_pool() if pi_blocked_on On RT enabled kernels, fill_pool() ends up calling rtlock_lock(), which asserts if current::pi_blocked_on is set, because a task can obviously only block on one lock as otherwise the priority inheritenace chain gets corrupted. Prevent this by expanding the conditional to take current::pi_blocked_on into account.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/33bee10644f8fff3b1a0187ad5ad34513e5e8e72	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3a408cae608d9c075dd3a9e5cfc03b3cb0726863	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3f6a3b24ab7b9d51f6f4778254bef0e5847beb55	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5f41161059fd0f1bbf18c90f3180e38cc45a14eb	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8a680d54f1adf3e3aa815578684556716fda6f0c	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a3383df76f0d7a597066df018409eb9e5e698064	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1
linux	linux_kernel	7.1

JSON

To clipboard

{
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    }
  ],
  "id": "CVE-2026-53327",
  "lastModified": "2026-07-23T20:52:46.443",
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          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
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    }
  ]
}

CVE-2026-53327 (GCVE-0-2026-53327)

Vulnerability from cvelistv5 – Published: 2026-07-01 13:32 – Updated: 2026-07-04 11:51

Title

debugobjects: Do not fill_pool() if pi_blocked_on

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

6 references

URL	Tags
https://git.kernel.org/stable/c/8a680d54f1adf3e3a…
https://git.kernel.org/stable/c/a3383df76f0d7a597…
https://git.kernel.org/stable/c/3f6a3b24ab7b9d51f…
https://git.kernel.org/stable/c/3a408cae608d9c075…
https://git.kernel.org/stable/c/33bee10644f8fff3b…
https://git.kernel.org/stable/c/5f41161059fd0f1bb…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 4bedcc28469a24fe481a8a31b3584e6070457ddb , < 8a680d54f1adf3e3aa815578684556716fda6f0c (git) Affected: 4bedcc28469a24fe481a8a31b3584e6070457ddb , < a3383df76f0d7a597066df018409eb9e5e698064 (git) Affected: 4bedcc28469a24fe481a8a31b3584e6070457ddb , < 3f6a3b24ab7b9d51f6f4778254bef0e5847beb55 (git) Affected: 4bedcc28469a24fe481a8a31b3584e6070457ddb , < 3a408cae608d9c075dd3a9e5cfc03b3cb0726863 (git) Affected: 4bedcc28469a24fe481a8a31b3584e6070457ddb , < 33bee10644f8fff3b1a0187ad5ad34513e5e8e72 (git) Affected: 4bedcc28469a24fe481a8a31b3584e6070457ddb , < 5f41161059fd0f1bbf18c90f3180e38cc45a14eb (git)
Linux	Linux	Affected: 5.15 Unaffected: 0 , < 5.15 (semver) Unaffected: 6.1.177 , ≤ 6.1.* (semver) Unaffected: 6.6.144 , ≤ 6.6.* (semver) Unaffected: 6.12.95 , ≤ 6.12.* (semver) Unaffected: 6.18.37 , ≤ 6.18.* (semver) Unaffected: 7.0.13 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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          "defaultStatus": "unaffected",
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          "programFiles": [
            "lib/debugobjects.c"
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}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

FKIE_CVE-2026-53327

CVE-2026-53327 (GCVE-0-2026-53327)

Tags

Sightings

Nomenclature