Vulnerability-Lookup

GHSA-872R-39GX-CVPQ

Vulnerability from github – Published: 2025-01-11 15:30 – Updated: 2025-09-23 18:30

Details

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

stackdepot: fix stack_depot_save_flags() in NMI context

Per documentation, stack_depot_save_flags() was meant to be usable from NMI context if STACK_DEPOT_FLAG_CAN_ALLOC is unset. However, it still would try to take the pool_lock in an attempt to save a stack trace in the current pool (if space is available).

This could result in deadlock if an NMI is handled while pool_lock is already held. To avoid deadlock, only try to take the lock in NMI context and give up if unsuccessful.

The documentation is fixed to clearly convey this.

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-2024-48876"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-11T13:15:23Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nstackdepot: fix stack_depot_save_flags() in NMI context\n\nPer documentation, stack_depot_save_flags() was meant to be usable from\nNMI context if STACK_DEPOT_FLAG_CAN_ALLOC is unset.  However, it still\nwould try to take the pool_lock in an attempt to save a stack trace in the\ncurrent pool (if space is available).\n\nThis could result in deadlock if an NMI is handled while pool_lock is\nalready held.  To avoid deadlock, only try to take the lock in NMI context\nand give up if unsuccessful.\n\nThe documentation is fixed to clearly convey this.",
  "id": "GHSA-872r-39gx-cvpq",
  "modified": "2025-09-23T18:30:20Z",
  "published": "2025-01-11T15:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-48876"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/031e04bdc834cda3b054ef6b698503b2b97e8186"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9bfeeeff2c92b9dd261198b601b45bde4c529841"
    }
  ],
  "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-2024-48876 (GCVE-0-2024-48876)

Vulnerability from cvelistv5 – Published: 2025-01-11 12:25 – Updated: 2026-05-11 20:40

Title

stackdepot: fix stack_depot_save_flags() in NMI context

Summary

In the Linux kernel, the following vulnerability has been resolved: stackdepot: fix stack_depot_save_flags() in NMI context Per documentation, stack_depot_save_flags() was meant to be usable from NMI context if STACK_DEPOT_FLAG_CAN_ALLOC is unset. However, it still would try to take the pool_lock in an attempt to save a stack trace in the current pool (if space is available). This could result in deadlock if an NMI is handled while pool_lock is already held. To avoid deadlock, only try to take the lock in NMI context and give up if unsuccessful. The documentation is fixed to clearly convey this.

Severity

No CVSS data available.

Assigner

Linux

References

2 references

URL	Tags
https://git.kernel.org/stable/c/9bfeeeff2c92b9dd2…
https://git.kernel.org/stable/c/031e04bdc834cda3b…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 4434a56ec20925333d6cf4d4093641d063abd35b , < 9bfeeeff2c92b9dd261198b601b45bde4c529841 (git) Affected: 4434a56ec20925333d6cf4d4093641d063abd35b , < 031e04bdc834cda3b054ef6b698503b2b97e8186 (git)
Linux	Linux	Affected: 6.8 Unaffected: 0 , < 6.8 (semver) Unaffected: 6.12.5 , ≤ 6.12.* (semver) Unaffected: 6.13 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "include/linux/stackdepot.h",
            "lib/stackdepot.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9bfeeeff2c92b9dd261198b601b45bde4c529841",
              "status": "affected",
              "version": "4434a56ec20925333d6cf4d4093641d063abd35b",
              "versionType": "git"
            },
            {
              "lessThan": "031e04bdc834cda3b054ef6b698503b2b97e8186",
              "status": "affected",
              "version": "4434a56ec20925333d6cf4d4093641d063abd35b",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "include/linux/stackdepot.h",
            "lib/stackdepot.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.5",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13",
                  "versionStartIncluding": "6.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstackdepot: fix stack_depot_save_flags() in NMI context\n\nPer documentation, stack_depot_save_flags() was meant to be usable from\nNMI context if STACK_DEPOT_FLAG_CAN_ALLOC is unset.  However, it still\nwould try to take the pool_lock in an attempt to save a stack trace in the\ncurrent pool (if space is available).\n\nThis could result in deadlock if an NMI is handled while pool_lock is\nalready held.  To avoid deadlock, only try to take the lock in NMI context\nand give up if unsuccessful.\n\nThe documentation is fixed to clearly convey this."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T20:40:17.722Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9bfeeeff2c92b9dd261198b601b45bde4c529841"
        },
        {
          "url": "https://git.kernel.org/stable/c/031e04bdc834cda3b054ef6b698503b2b97e8186"
        }
      ],
      "title": "stackdepot: fix stack_depot_save_flags() in NMI context",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-48876",
    "datePublished": "2025-01-11T12:25:17.819Z",
    "dateReserved": "2025-01-09T09:51:32.384Z",
    "dateUpdated": "2026-05-11T20:40:17.722Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-872R-39GX-CVPQ

CVE-2024-48876 (GCVE-0-2024-48876)

Tags

Sightings

Nomenclature