github - ghsa-656h-33vg-5h9x

GHSA-656H-33VG-5H9X

Vulnerability from github – Published: 2025-07-03 09:30 – Updated: 2025-11-03 18:31

Details

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

ACPI: CPPC: Fix NULL pointer dereference when nosmp is used

With nosmp in cmdline, other CPUs are not brought up, leaving their cpc_desc_ptr NULL. CPU0's iteration via for_each_possible_cpu() dereferences these NULL pointers, causing panic.

Panic backtrace:

[ 0.401123] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8 ... [ 0.403255] [] cppc_allow_fast_switch+0x6a/0xd4 ... Kernel panic - not syncing: Attempted to kill init!

[ rjw: New subject ]

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38113"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-03T09:15:25Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: CPPC: Fix NULL pointer dereference when nosmp is used\n\nWith nosmp in cmdline, other CPUs are not brought up, leaving\ntheir cpc_desc_ptr NULL. CPU0\u0027s iteration via for_each_possible_cpu()\ndereferences these NULL pointers, causing panic.\n\nPanic backtrace:\n\n[    0.401123] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8\n...\n[    0.403255] [\u003cffffffff809a5818\u003e] cppc_allow_fast_switch+0x6a/0xd4\n...\nKernel panic - not syncing: Attempted to kill init!\n\n[ rjw: New subject ]",
  "id": "GHSA-656h-33vg-5h9x",
  "modified": "2025-11-03T18:31:20Z",
  "published": "2025-07-03T09:30:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38113"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/15eece6c5b05e5f9db0711978c3e3b7f1a2cfe12"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1a677d0ceb4a5d62117b711a8b2e0aee80d33015"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/32a48db4cf28ea087214c261da8476db218d08bd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/356d09c7f5bf525086002a34f8bae40b134d1611"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c6dad167aade4bf0bef9130f2f149f4249fc4ad0"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-38113 (GCVE-0-2025-38113)

Vulnerability from cvelistv5 – Published: 2025-07-03 08:35 – Updated: 2025-11-03 17:34

Summary

In the Linux kernel, the following vulnerability has been resolved: ACPI: CPPC: Fix NULL pointer dereference when nosmp is used With nosmp in cmdline, other CPUs are not brought up, leaving their cpc_desc_ptr NULL. CPU0's iteration via for_each_possible_cpu() dereferences these NULL pointers, causing panic. Panic backtrace: [ 0.401123] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000b8 ... [ 0.403255] [<ffffffff809a5818>] cppc_allow_fast_switch+0x6a/0xd4 ... Kernel panic - not syncing: Attempted to kill init! [ rjw: New subject ]

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/356d09c7f5bf52508…
	https://git.kernel.org/stable/c/c6dad167aade4bf0b…
	https://git.kernel.org/stable/c/32a48db4cf28ea087…
	https://git.kernel.org/stable/c/1a677d0ceb4a5d621…
	https://git.kernel.org/stable/c/15eece6c5b05e5f9d…

Impacted products

Vendor

Product

Version

Linux

Affected: 3cc30dd00a580ca0c9c0b01639841cfd72d10129 , < 356d09c7f5bf525086002a34f8bae40b134d1611 (git)
Affected: 3cc30dd00a580ca0c9c0b01639841cfd72d10129 , < c6dad167aade4bf0bef9130f2f149f4249fc4ad0 (git)
Affected: 3cc30dd00a580ca0c9c0b01639841cfd72d10129 , < 32a48db4cf28ea087214c261da8476db218d08bd (git)
Affected: 3cc30dd00a580ca0c9c0b01639841cfd72d10129 , < 1a677d0ceb4a5d62117b711a8b2e0aee80d33015 (git)
Affected: 3cc30dd00a580ca0c9c0b01639841cfd72d10129 , < 15eece6c5b05e5f9db0711978c3e3b7f1a2cfe12 (git)

Linux

Affected: 5.19
Unaffected: 0 , < 5.19 (semver)
Unaffected: 6.1.142 , ≤ 6.1.* (semver)
Unaffected: 6.6.94 , ≤ 6.6.* (semver)
Unaffected: 6.12.34 , ≤ 6.12.* (semver)
Unaffected: 6.15.3 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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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-656H-33VG-5H9X

CVE-2025-38113 (GCVE-0-2025-38113)

Tags

Sightings

Nomenclature