Vulnerability-Lookup

GHSA-3GPQ-JCRP-XP2R

Vulnerability from github – Published: 2025-05-01 15:31 – Updated: 2025-11-07 21:31

Details

In the Linux kernel, the following vulnerability has been resolved:

erofs: fix missing xas_retry() in fscache mode

The xarray iteration only holds the RCU read lock and thus may encounter XA_RETRY_ENTRY if there's process modifying the xarray concurrently. This will cause oops when referring to the invalid entry.

Fix this by adding the missing xas_retry(), which will make the iteration wind back to the root node if XA_RETRY_ENTRY is encountered.

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49815"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-01T15:16:04Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix missing xas_retry() in fscache mode\n\nThe xarray iteration only holds the RCU read lock and thus may encounter\nXA_RETRY_ENTRY if there\u0027s process modifying the xarray concurrently.\nThis will cause oops when referring to the invalid entry.\n\nFix this by adding the missing xas_retry(), which will make the\niteration wind back to the root node if XA_RETRY_ENTRY is encountered.",
  "id": "GHSA-3gpq-jcrp-xp2r",
  "modified": "2025-11-07T21:31:19Z",
  "published": "2025-05-01T15:31:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49815"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/37020bbb71d911431e16c2c940b97cf86ae4f2f6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dbc98fe99e17ed18f2f272d5fe880d844b1c68c3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49815 (GCVE-0-2022-49815)

Vulnerability from cvelistv5 – Published: 2025-05-01 14:09 – Updated: 2026-05-11 19:07

Title

erofs: fix missing xas_retry() in fscache mode

Summary

In the Linux kernel, the following vulnerability has been resolved: erofs: fix missing xas_retry() in fscache mode The xarray iteration only holds the RCU read lock and thus may encounter XA_RETRY_ENTRY if there's process modifying the xarray concurrently. This will cause oops when referring to the invalid entry. Fix this by adding the missing xas_retry(), which will make the iteration wind back to the root node if XA_RETRY_ENTRY is encountered.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/dbc98fe99e17ed18f…
https://git.kernel.org/stable/c/37020bbb71d911431…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: d435d53228dd039fffecae123b8c138af6f96f99 , < dbc98fe99e17ed18f2f272d5fe880d844b1c68c3 (git) Affected: d435d53228dd039fffecae123b8c138af6f96f99 , < 37020bbb71d911431e16c2c940b97cf86ae4f2f6 (git)
Linux	Linux	Affected: 5.19 Unaffected: 0 , < 5.19 (semver) Unaffected: 6.0.10 , ≤ 6.0.* (semver) Unaffected: 6.1 , ≤ * (original_commit_for_fix)

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        {
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          "programFiles": [
            "fs/erofs/fscache.c"
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          "vendor": "Linux",
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              "versionType": "original_commit_for_fix"
            }
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        }
      ],
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                },
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T19:07:19.583Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    "datePublished": "2025-05-01T14:09:39.016Z",
    "dateReserved": "2025-05-01T14:05:17.226Z",
    "dateUpdated": "2026-05-11T19:07:19.583Z",
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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.
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