ghsa-g8v7-wpgp-c9xw
Vulnerability from github
Published
2025-03-12 12:30
Modified
2025-03-13 18:32
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

drm/i915/gt: Use spin_lock_irqsave() in interruptible context

spin_lock/unlock() functions used in interrupt contexts could result in a deadlock, as seen in GitLab issue #13399, which occurs when interrupt comes in while holding a lock.

Try to remedy the problem by saving irq state before spin lock acquisition.

v2: add irqs' state save/restore calls to all locks/unlocks in signal_irq_work() execution (Maciej)

v3: use with spin_lock_irqsave() in guc_lrc_desc_unpin() instead of other lock/unlock calls and add Fixes and Cc tags (Tvrtko); change title and commit message

(cherry picked from commit c088387ddd6482b40f21ccf23db1125e8fa4af7e)

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2025-21849"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-12T10:15:17Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/gt: Use spin_lock_irqsave() in interruptible context\n\nspin_lock/unlock() functions used in interrupt contexts could\nresult in a deadlock, as seen in GitLab issue #13399,\nwhich occurs when interrupt comes in while holding a lock.\n\nTry to remedy the problem by saving irq state before spin lock\nacquisition.\n\nv2: add irqs\u0027 state save/restore calls to all locks/unlocks in\n signal_irq_work() execution (Maciej)\n\nv3: use with spin_lock_irqsave() in guc_lrc_desc_unpin() instead\n of other lock/unlock calls and add Fixes and Cc tags (Tvrtko);\n change title and commit message\n\n(cherry picked from commit c088387ddd6482b40f21ccf23db1125e8fa4af7e)",
  "id": "GHSA-g8v7-wpgp-c9xw",
  "modified": "2025-03-13T18:32:20Z",
  "published": "2025-03-12T12:30:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21849"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2bf1f4c129db7a10920655b000f0292f1ee509c2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/47ae46ac5407646420e06b78e0dad331e56a4bb4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e49477f7f78598295551d486ecc7f020d796432e"
    }
  ],
  "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"
    }
  ]
}


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