ghsa-872r-39gx-cvpq
Vulnerability from github
Published
2025-01-11 15:30
Modified
2025-01-11 15:30
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.

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2024-48876"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-11T13:15:23Z",
    "severity": null
  },
  "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": "2025-01-11T15:30:28Z",
  "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": []
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.