Vulnerability-Lookup

GHSA-2G84-5882-FHCM

Vulnerability from github – Published: 2025-03-27 18:31 – Updated: 2025-04-15 15:30

Details

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

acpi: Fix suspend with Xen PV

Commit f1e525009493 ("x86/boot: Skip realmode init code when running as Xen PV guest") missed one code path accessing real_mode_header, leading to dereferencing NULL when suspending the system under Xen:

[  348.284004] PM: suspend entry (deep)
[  348.289532] Filesystems sync: 0.005 seconds
[  348.291545] Freezing user space processes ... (elapsed 0.000 seconds) done.
[  348.292457] OOM killer disabled.
[  348.292462] Freezing remaining freezable tasks ... (elapsed 0.104 seconds) done.
[  348.396612] printk: Suspending console(s) (use no_console_suspend to debug)
[  348.749228] PM: suspend devices took 0.352 seconds
[  348.769713] ACPI: EC: interrupt blocked
[  348.816077] BUG: kernel NULL pointer dereference, address: 000000000000001c
[  348.816080] #PF: supervisor read access in kernel mode
[  348.816081] #PF: error_code(0x0000) - not-present page
[  348.816083] PGD 0 P4D 0
[  348.816086] Oops: 0000 [#1] PREEMPT SMP NOPTI
[  348.816089] CPU: 0 PID: 6764 Comm: systemd-sleep Not tainted 6.1.3-1.fc32.qubes.x86_64 #1
[  348.816092] Hardware name: Star Labs StarBook/StarBook, BIOS 8.01 07/03/2022
[  348.816093] RIP: e030:acpi_get_wakeup_address+0xc/0x20

Fix that by adding an optional acpi callback allowing to skip setting the wakeup address, as in the Xen PV case this will be handled by the hypervisor anyway.

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-2023-52994"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-27T17:15:47Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nacpi: Fix suspend with Xen PV\n\nCommit f1e525009493 (\"x86/boot: Skip realmode init code when running as\nXen PV guest\") missed one code path accessing real_mode_header, leading\nto dereferencing NULL when suspending the system under Xen:\n\n    [  348.284004] PM: suspend entry (deep)\n    [  348.289532] Filesystems sync: 0.005 seconds\n    [  348.291545] Freezing user space processes ... (elapsed 0.000 seconds) done.\n    [  348.292457] OOM killer disabled.\n    [  348.292462] Freezing remaining freezable tasks ... (elapsed 0.104 seconds) done.\n    [  348.396612] printk: Suspending console(s) (use no_console_suspend to debug)\n    [  348.749228] PM: suspend devices took 0.352 seconds\n    [  348.769713] ACPI: EC: interrupt blocked\n    [  348.816077] BUG: kernel NULL pointer dereference, address: 000000000000001c\n    [  348.816080] #PF: supervisor read access in kernel mode\n    [  348.816081] #PF: error_code(0x0000) - not-present page\n    [  348.816083] PGD 0 P4D 0\n    [  348.816086] Oops: 0000 [#1] PREEMPT SMP NOPTI\n    [  348.816089] CPU: 0 PID: 6764 Comm: systemd-sleep Not tainted 6.1.3-1.fc32.qubes.x86_64 #1\n    [  348.816092] Hardware name: Star Labs StarBook/StarBook, BIOS 8.01 07/03/2022\n    [  348.816093] RIP: e030:acpi_get_wakeup_address+0xc/0x20\n\nFix that by adding an optional acpi callback allowing to skip setting\nthe wakeup address, as in the Xen PV case this will be handled by the\nhypervisor anyway.",
  "id": "GHSA-2g84-5882-fhcm",
  "modified": "2025-04-15T15:30:52Z",
  "published": "2025-03-27T18:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52994"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b96903b7fc8c82ddfd92df4cdd83db3e567da0a5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fe0ba8c23f9a35b0307eb662f16dd3a75fcdae41"
    }
  ],
  "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-2023-52994 (GCVE-0-2023-52994)

Vulnerability from cvelistv5 – Published: 2025-03-27 16:43 – Updated: 2026-05-23 15:27

Title

acpi: Fix suspend with Xen PV

Summary

In the Linux kernel, the following vulnerability has been resolved: acpi: Fix suspend with Xen PV Commit f1e525009493 ("x86/boot: Skip realmode init code when running as Xen PV guest") missed one code path accessing real_mode_header, leading to dereferencing NULL when suspending the system under Xen: [ 348.284004] PM: suspend entry (deep) [ 348.289532] Filesystems sync: 0.005 seconds [ 348.291545] Freezing user space processes ... (elapsed 0.000 seconds) done. [ 348.292457] OOM killer disabled. [ 348.292462] Freezing remaining freezable tasks ... (elapsed 0.104 seconds) done. [ 348.396612] printk: Suspending console(s) (use no_console_suspend to debug) [ 348.749228] PM: suspend devices took 0.352 seconds [ 348.769713] ACPI: EC: interrupt blocked [ 348.816077] BUG: kernel NULL pointer dereference, address: 000000000000001c [ 348.816080] #PF: supervisor read access in kernel mode [ 348.816081] #PF: error_code(0x0000) - not-present page [ 348.816083] PGD 0 P4D 0 [ 348.816086] Oops: 0000 [#1] PREEMPT SMP NOPTI [ 348.816089] CPU: 0 PID: 6764 Comm: systemd-sleep Not tainted 6.1.3-1.fc32.qubes.x86_64 #1 [ 348.816092] Hardware name: Star Labs StarBook/StarBook, BIOS 8.01 07/03/2022 [ 348.816093] RIP: e030:acpi_get_wakeup_address+0xc/0x20 Fix that by adding an optional acpi callback allowing to skip setting the wakeup address, as in the Xen PV case this will be handled by the hypervisor anyway.

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 20:08 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7033 records in the last 180 days details

References

2 references

URL	Tags
https://git.kernel.org/stable/c/b96903b7fc8c82ddf…
https://git.kernel.org/stable/c/fe0ba8c23f9a35b03…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: b1898793777fe10a31c160bb8bc385d6eea640c6 , < b96903b7fc8c82ddfd92df4cdd83db3e567da0a5 (git) Affected: f1e525009493cbd569e7c8dd7d58157855f8658d , < fe0ba8c23f9a35b0307eb662f16dd3a75fcdae41 (git) Affected: 3414632beaadf635a4affd4ae278297978640965 (git) Affected: 6.0.16 , < 6.1 (semver)
Linux	Linux	Affected: 6.1.2 , < 6.1.9 (semver)

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "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",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2023-52994",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T20:08:13.653674Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-476",
                "description": "CWE-476 NULL Pointer Dereference",
                "lang": "en",
                "type": "CWE"
              }
            ]
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        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T20:17:03.878Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/include/asm/acpi.h",
            "drivers/acpi/sleep.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b96903b7fc8c82ddfd92df4cdd83db3e567da0a5",
              "status": "affected",
              "version": "b1898793777fe10a31c160bb8bc385d6eea640c6",
              "versionType": "git"
            },
            {
              "lessThan": "fe0ba8c23f9a35b0307eb662f16dd3a75fcdae41",
              "status": "affected",
              "version": "f1e525009493cbd569e7c8dd7d58157855f8658d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "3414632beaadf635a4affd4ae278297978640965",
              "versionType": "git"
            },
            {
              "lessThan": "6.1",
              "status": "affected",
              "version": "6.0.16",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/include/asm/acpi.h",
            "drivers/acpi/sleep.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6.1.9",
              "status": "affected",
              "version": "6.1.2",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.9",
                  "versionStartIncluding": "6.1.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.0.16",
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                }
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              "negate": false,
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nacpi: Fix suspend with Xen PV\n\nCommit f1e525009493 (\"x86/boot: Skip realmode init code when running as\nXen PV guest\") missed one code path accessing real_mode_header, leading\nto dereferencing NULL when suspending the system under Xen:\n\n    [  348.284004] PM: suspend entry (deep)\n    [  348.289532] Filesystems sync: 0.005 seconds\n    [  348.291545] Freezing user space processes ... (elapsed 0.000 seconds) done.\n    [  348.292457] OOM killer disabled.\n    [  348.292462] Freezing remaining freezable tasks ... (elapsed 0.104 seconds) done.\n    [  348.396612] printk: Suspending console(s) (use no_console_suspend to debug)\n    [  348.749228] PM: suspend devices took 0.352 seconds\n    [  348.769713] ACPI: EC: interrupt blocked\n    [  348.816077] BUG: kernel NULL pointer dereference, address: 000000000000001c\n    [  348.816080] #PF: supervisor read access in kernel mode\n    [  348.816081] #PF: error_code(0x0000) - not-present page\n    [  348.816083] PGD 0 P4D 0\n    [  348.816086] Oops: 0000 [#1] PREEMPT SMP NOPTI\n    [  348.816089] CPU: 0 PID: 6764 Comm: systemd-sleep Not tainted 6.1.3-1.fc32.qubes.x86_64 #1\n    [  348.816092] Hardware name: Star Labs StarBook/StarBook, BIOS 8.01 07/03/2022\n    [  348.816093] RIP: e030:acpi_get_wakeup_address+0xc/0x20\n\nFix that by adding an optional acpi callback allowing to skip setting\nthe wakeup address, as in the Xen PV case this will be handled by the\nhypervisor anyway."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T15:27:41.619Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          "url": "https://git.kernel.org/stable/c/fe0ba8c23f9a35b0307eb662f16dd3a75fcdae41"
        }
      ],
      "title": "acpi: Fix suspend with Xen PV",
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        "engine": "bippy-1.2.0"
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2023-52994",
    "datePublished": "2025-03-27T16:43:28.893Z",
    "dateReserved": "2025-03-27T16:40:15.742Z",
    "dateUpdated": "2026-05-23T15:27:41.619Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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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