Vulnerability-Lookup

CVE-2026-53123 (GCVE-0-2026-53123)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:30 – Updated: 2026-06-24 16:30

Title

md: wake raid456 reshape waiters before suspend

Summary

In the Linux kernel, the following vulnerability has been resolved: md: wake raid456 reshape waiters before suspend During raid456 reshape, direct IO across the reshape position can sleep in raid5_make_request() waiting for reshape progress while still holding an active_io reference. If userspace then freezes reshape and writes md/suspend_lo or md/suspend_hi, mddev_suspend() kills active_io and waits for all in-flight IO to drain. This can deadlock: the IO needs reshape progress to continue, but the reshape thread is already frozen, so the active_io reference is never dropped and suspend never completes. raid5_prepare_suspend() already wakes wait_for_reshape for dm-raid. Do the same for normal md suspend when reshape is already interrupted, so waiting raid456 IO can abort, drop its reference, and let suspend finish. The mdadm test tests/25raid456-reshape-deadlock reproduces the hang.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/8b6a72420821e6da2…
https://git.kernel.org/stable/c/ff6b93410192b812d…
https://git.kernel.org/stable/c/8ae3e14d7f3df58f7…
https://git.kernel.org/stable/c/cf86bb53b9c923549…

Impacted products

2 products

Vendor	Product	Version	CPE status
Linux	Linux	Affected: 714d20150ed85811193ae07a494d91f9927c590f , < 8b6a72420821e6da2cab6a69d5233500d2698b93 (git) Affected: 714d20150ed85811193ae07a494d91f9927c590f , < ff6b93410192b812d73cc54062529715b2dc849f (git) Affected: 714d20150ed85811193ae07a494d91f9927c590f , < 8ae3e14d7f3df58f7f49c02d74344e3dcd5f84f0 (git) Affected: 714d20150ed85811193ae07a494d91f9927c590f , < cf86bb53b9c92354904a328e947a05ffbfdd1840 (git)	guessed
Linux	Linux	Affected: 6.7 Unaffected: 0 , < 6.7 (semver) Unaffected: 6.12.91 , ≤ 6.12.* (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)	guessed

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WID-SEC-W-2026-2077

Vulnerability from csaf_certbund - Published: 2026-06-24 22:00 - Updated: 2026-08-10 22:00

Summary

Linux Kernel: Mehrere Schwachstellen

Severity

Hoch

Scope

331 vulnerabilities in this advisory, including CVE-2026-53123.

CVE-2026-53123

Known affected: 11 products

Open the full advisory

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.