Vulnerability-Lookup

GHSA-RQ3P-6QPW-48CX

Vulnerability from github – Published: 2025-04-14 18:31 – Updated: 2025-04-14 18:31

Details

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

rtc: pl031: fix rtc features null pointer dereference

When there is no interrupt line, rtc alarm feature is disabled.

The clearing of the alarm feature bit was being done prior to allocations of ldata->rtc device, resulting in a null pointer dereference.

Clear RTC_FEATURE_ALARM after the rtc device is allocated.

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-2022-49273"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:04Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nrtc: pl031: fix rtc features null pointer dereference\n\nWhen there is no interrupt line, rtc alarm feature is disabled.\n\nThe clearing of the alarm feature bit was being done prior to allocations\nof ldata-\u003ertc device, resulting in a null pointer dereference.\n\nClear RTC_FEATURE_ALARM after the rtc device is allocated.",
  "id": "GHSA-rq3p-6qpw-48cx",
  "modified": "2025-04-14T18:31:48Z",
  "published": "2025-04-14T18:31:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49273"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1b915703964f7e636961df04c540261dc55c6c70"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cd2722e411e8ab7e5ae41102f6925fa13dffdac5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d274ce4a3dfd0b9a292667535578359b865765cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ea6af39f3da50c86367a71eb3cc674ade3ed244c"
    }
  ],
  "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-2022-49273 (GCVE-0-2022-49273)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:56 – Updated: 2026-05-11 18:56

Title

rtc: pl031: fix rtc features null pointer dereference

Summary

In the Linux kernel, the following vulnerability has been resolved: rtc: pl031: fix rtc features null pointer dereference When there is no interrupt line, rtc alarm feature is disabled. The clearing of the alarm feature bit was being done prior to allocations of ldata->rtc device, resulting in a null pointer dereference. Clear RTC_FEATURE_ALARM after the rtc device is allocated.

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-01 19:45 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6664 records in the last 180 days details

References

4 references

URL	Tags
https://git.kernel.org/stable/c/cd2722e411e8ab7e5…
https://git.kernel.org/stable/c/d274ce4a3dfd0b9a2…
https://git.kernel.org/stable/c/1b915703964f7e636…
https://git.kernel.org/stable/c/ea6af39f3da50c863…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: d9b0dd54a1943f47a381a474f8ea2c94466110c0 , < cd2722e411e8ab7e5ae41102f6925fa13dffdac5 (git) Affected: d9b0dd54a1943f47a381a474f8ea2c94466110c0 , < d274ce4a3dfd0b9a292667535578359b865765cb (git) Affected: d9b0dd54a1943f47a381a474f8ea2c94466110c0 , < 1b915703964f7e636961df04c540261dc55c6c70 (git) Affected: d9b0dd54a1943f47a381a474f8ea2c94466110c0 , < ea6af39f3da50c86367a71eb3cc674ade3ed244c (git)
Linux	Linux	Affected: 5.12 Unaffected: 0 , < 5.12 (semver) Unaffected: 5.15.33 , ≤ 5.15.* (semver) Unaffected: 5.16.19 , ≤ 5.16.* (semver) Unaffected: 5.17.2 , ≤ 5.17.* (semver) Unaffected: 5.18 , ≤ * (original_commit_for_fix)

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  "containers": {
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      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
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              "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",
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                "id": "CVE-2022-49273",
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    "cna": {
      "affected": [
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          "product": "Linux",
          "programFiles": [
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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.

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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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