GHSA-G8V7-WPGP-C9XW
Vulnerability from github – Published: 2025-03-12 12:30 – Updated: 2025-03-13 18:32In 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)
{
"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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