Vulnerability-Lookup

GHSA-X8FR-74RG-389V

Vulnerability from github – Published: 2025-03-07 21:31 – Updated: 2025-03-07 21:31

Details

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

ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo()

In an unlikely (and probably wrong?) case that the 'ppi' parameter of ata_host_alloc_pinfo() points to an array starting with a NULL pointer, there's going to be a kernel oops as the 'pi' local variable won't get reassigned from the initial value of NULL. Initialize 'pi' instead to '&ata_dummy_port_info' to fix the possible kernel oops for good...

Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.

Severity

5.5 (Medium)


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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49731"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:48Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo()\n\nIn an unlikely (and probably wrong?) case that the \u0027ppi\u0027 parameter of\nata_host_alloc_pinfo() points to an array starting with a NULL pointer,\nthere\u0027s going to be a kernel oops as the \u0027pi\u0027 local variable won\u0027t get\nreassigned from the initial value of NULL. Initialize \u0027pi\u0027 instead to\n\u0027\u0026ata_dummy_port_info\u0027 to fix the possible kernel oops for good...\n\nFound by Linux Verification Center (linuxtesting.org) with the SVACE static\nanalysis tool.",
  "id": "GHSA-x8fr-74rg-389v",
  "modified": "2025-03-07T21:31:04Z",
  "published": "2025-03-07T21:31:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49731"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/07cbdb4807d369fbda73062a91b570c4dc5ec429"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1ac5efee33f29e704226506d429b84575a5d66f8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/253334f84c81bc6a43af489f108c0bddad989eef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/36cd19e7d4e5571d77a2ed20c5b6ef50cf57734a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a810bd5af06977a847d1f202b22d7defd5c62497"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bf476fe22aa1851bab4728e0c49025a6a0bea307"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca4693e6e06e4fd2b240c0fec47aa2498c94848e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff128fbea720bf763fa345680dda5f050bc24a47"
    }
  ],
  "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-2022-49731 (GCVE-0-2022-49731)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:24 – Updated: 2026-05-11 19:05

Title

ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo()

Summary

In the Linux kernel, the following vulnerability has been resolved: ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo() In an unlikely (and probably wrong?) case that the 'ppi' parameter of ata_host_alloc_pinfo() points to an array starting with a NULL pointer, there's going to be a kernel oops as the 'pi' local variable won't get reassigned from the initial value of NULL. Initialize 'pi' instead to '&ata_dummy_port_info' to fix the possible kernel oops for good... Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.

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 19:31 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/ca4693e6e06e4fd2b…
https://git.kernel.org/stable/c/1ac5efee33f29e704…
https://git.kernel.org/stable/c/a810bd5af06977a84…
https://git.kernel.org/stable/c/253334f84c81bc6a4…
https://git.kernel.org/stable/c/36cd19e7d4e5571d7…
https://git.kernel.org/stable/c/ff128fbea720bf763…
https://git.kernel.org/stable/c/07cbdb4807d369fbd…
https://git.kernel.org/stable/c/bf476fe22aa1851ba…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: f5cda257296fbd3683b1f568f2d94d3caaacf74d , < ca4693e6e06e4fd2b240c0fec47aa2498c94848e (git) Affected: f5cda257296fbd3683b1f568f2d94d3caaacf74d , < 1ac5efee33f29e704226506d429b84575a5d66f8 (git) Affected: f5cda257296fbd3683b1f568f2d94d3caaacf74d , < a810bd5af06977a847d1f202b22d7defd5c62497 (git) Affected: f5cda257296fbd3683b1f568f2d94d3caaacf74d , < 253334f84c81bc6a43af489f108c0bddad989eef (git) Affected: f5cda257296fbd3683b1f568f2d94d3caaacf74d , < 36cd19e7d4e5571d77a2ed20c5b6ef50cf57734a (git) Affected: f5cda257296fbd3683b1f568f2d94d3caaacf74d , < ff128fbea720bf763fa345680dda5f050bc24a47 (git) Affected: f5cda257296fbd3683b1f568f2d94d3caaacf74d , < 07cbdb4807d369fbda73062a91b570c4dc5ec429 (git) Affected: f5cda257296fbd3683b1f568f2d94d3caaacf74d , < bf476fe22aa1851bab4728e0c49025a6a0bea307 (git)
Linux	Linux	Affected: 2.6.22 Unaffected: 0 , < 2.6.22 (semver) Unaffected: 4.9.320 , ≤ 4.9.* (semver) Unaffected: 4.14.285 , ≤ 4.14.* (semver) Unaffected: 4.19.249 , ≤ 4.19.* (semver) Unaffected: 5.4.200 , ≤ 5.4.* (semver) Unaffected: 5.10.124 , ≤ 5.10.* (semver) Unaffected: 5.15.49 , ≤ 5.15.* (semver) Unaffected: 5.18.6 , ≤ 5.18.* (semver) Unaffected: 5.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
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        "metrics": [
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              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
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              "confidentialityImpact": "NONE",
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              "scope": "UNCHANGED",
              "userInteraction": "NONE",
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                "timestamp": "2025-10-01T19:31:53.132246Z",
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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