Vulnerability-Lookup

GHSA-2JV6-V65M-QJX7

Vulnerability from github – Published: 2024-05-01 06:31 – Updated: 2024-12-23 15:30

Details

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

powercap: intel_rapl: Fix a NULL pointer dereference

A NULL pointer dereference is triggered when probing the MMIO RAPL driver on platforms with CPU ID not listed in intel_rapl_common CPU model list.

This is because the intel_rapl_common module still probes on such platforms even if 'defaults_msr' is not set after commit 1488ac990ac8 ("powercap: intel_rapl: Allow probing without CPUID match"). Thus the MMIO RAPL rp->priv->defaults is NULL when registering to RAPL framework.

Fix the problem by adding sanity check to ensure rp->priv->rapl_defaults is always valid.

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-2024-26975"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-01T06:15:14Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npowercap: intel_rapl: Fix a NULL pointer dereference\n\nA NULL pointer dereference is triggered when probing the MMIO RAPL\ndriver on platforms with CPU ID not listed in intel_rapl_common CPU\nmodel list.\n\nThis is because the intel_rapl_common module still probes on such\nplatforms even if \u0027defaults_msr\u0027 is not set after commit 1488ac990ac8\n(\"powercap: intel_rapl: Allow probing without CPUID match\"). Thus the\nMMIO RAPL rp-\u003epriv-\u003edefaults is NULL when registering to RAPL framework.\n\nFix the problem by adding sanity check to ensure rp-\u003epriv-\u003erapl_defaults\nis always valid.",
  "id": "GHSA-2jv6-v65m-qjx7",
  "modified": "2024-12-23T15:30:46Z",
  "published": "2024-05-01T06:31:42Z",
  "references": [
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26975"
    },
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    },
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    },
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      "type": "CVSS_V3"
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}

CVE-2024-26975 (GCVE-0-2024-26975)

Vulnerability from cvelistv5 – Published: 2024-05-01 05:20 – Updated: 2025-05-04 09:01

Title

powercap: intel_rapl: Fix a NULL pointer dereference

Summary

In the Linux kernel, the following vulnerability has been resolved: powercap: intel_rapl: Fix a NULL pointer dereference A NULL pointer dereference is triggered when probing the MMIO RAPL driver on platforms with CPU ID not listed in intel_rapl_common CPU model list. This is because the intel_rapl_common module still probes on such platforms even if 'defaults_msr' is not set after commit 1488ac990ac8 ("powercap: intel_rapl: Allow probing without CPUID match"). Thus the MMIO RAPL rp->priv->defaults is NULL when registering to RAPL framework. Fix the problem by adding sanity check to ensure rp->priv->rapl_defaults is always valid.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/0641908b906a133f1…
	https://git.kernel.org/stable/c/9b254feb249981b66…
	https://git.kernel.org/stable/c/2f73cf2ae5e0f4e62…
	https://git.kernel.org/stable/c/2d1f5006ff95770da…

Impacted products

Vendor

Product

Version

Linux

Affected: 1488ac990ac886b1209aa9f94c0c66022bcc8827 , < 0641908b906a133f1494c312a71f9fecbe2b6c78 (git)
Affected: 1488ac990ac886b1209aa9f94c0c66022bcc8827 , < 9b254feb249981b66ccdb1dae54e757789a15ba1 (git)
Affected: 1488ac990ac886b1209aa9f94c0c66022bcc8827 , < 2f73cf2ae5e0f4e629db5be3a4380ff7807148e6 (git)
Affected: 1488ac990ac886b1209aa9f94c0c66022bcc8827 , < 2d1f5006ff95770da502f8cee2a224a1ff83866e (git)

Linux

Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.6.24 , ≤ 6.6.* (semver)
Unaffected: 6.7.12 , ≤ 6.7.* (semver)
Unaffected: 6.8.3 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)

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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-2JV6-V65M-QJX7

CVE-2024-26975 (GCVE-0-2024-26975)

Tags

Sightings

Nomenclature