CVE-2025-21849 (GCVE-0-2025-21849)
Vulnerability from cvelistv5
Published
2025-03-12 09:42
Modified
2025-05-04 07:22
Severity ?
Summary
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)
References
Impacted products
Vendor Product Version
Linux Linux Version: 2f2cc53b5fe7022f3ae602eb24573d52f8740959
Version: 2f2cc53b5fe7022f3ae602eb24573d52f8740959
Version: 2f2cc53b5fe7022f3ae602eb24573d52f8740959
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c"
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          "value": "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)"
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    "datePublished": "2025-03-12T09:42:04.946Z",
    "dateReserved": "2024-12-29T08:45:45.779Z",
    "dateUpdated": "2025-05-04T07:22:30.523Z",
    "state": "PUBLISHED"
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}


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