CVE-2025-37812 (GCVE-0-2025-37812)

Vulnerability from cvelistv5 – Published: 2025-05-08 06:26 – Updated: 2025-11-03 19:55
VLAI?
Title
usb: cdns3: Fix deadlock when using NCM gadget
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: Fix deadlock when using NCM gadget The cdns3 driver has the same NCM deadlock as fixed in cdnsp by commit 58f2fcb3a845 ("usb: cdnsp: Fix deadlock issue during using NCM gadget"). Under PREEMPT_RT the deadlock can be readily triggered by heavy network traffic, for example using "iperf --bidir" over NCM ethernet link. The deadlock occurs because the threaded interrupt handler gets preempted by a softirq, but both are protected by the same spinlock. Prevent deadlock by disabling softirq during threaded irq handler.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 7733f6c32e36ff9d7adadf40001039bf219b1cbe , < eebfb64c624fc738b669100173344fb441c5e719 (git)
Affected: 7733f6c32e36ff9d7adadf40001039bf219b1cbe , < 59a760e4796a3cd88d8b9d7706e0a638de677751 (git)
Affected: 7733f6c32e36ff9d7adadf40001039bf219b1cbe , < b96239582531775f2fdcb14de29bdb6870fd4c8c (git)
Affected: 7733f6c32e36ff9d7adadf40001039bf219b1cbe , < c27db84ed44e50ff90d9e3a2a25fae2e0a0fa015 (git)
Affected: 7733f6c32e36ff9d7adadf40001039bf219b1cbe , < 48a62deb857f0694f611949015e70ad194d97159 (git)
Affected: 7733f6c32e36ff9d7adadf40001039bf219b1cbe , < 74cd6e408a4c010e404832f0e4609d29bf1d0c41 (git)
Affected: 7733f6c32e36ff9d7adadf40001039bf219b1cbe , < 09e90a9689a4aac7a2f726dc2aa472b0b37937b7 (git)
Affected: 7733f6c32e36ff9d7adadf40001039bf219b1cbe , < a1059896f2bfdcebcdc7153c3be2307ea319501f (git)
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    Linux Linux Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 5.4.293 , ≤ 5.4.* (semver)
Unaffected: 5.10.237 , ≤ 5.10.* (semver)
Unaffected: 5.15.181 , ≤ 5.15.* (semver)
Unaffected: 6.1.136 , ≤ 6.1.* (semver)
Unaffected: 6.6.89 , ≤ 6.6.* (semver)
Unaffected: 6.12.26 , ≤ 6.12.* (semver)
Unaffected: 6.14.5 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: cdns3: Fix deadlock when using NCM gadget\n\nThe cdns3 driver has the same NCM deadlock as fixed in cdnsp by commit\n58f2fcb3a845 (\"usb: cdnsp: Fix deadlock issue during using NCM gadget\").\n\nUnder PREEMPT_RT the deadlock can be readily triggered by heavy network\ntraffic, for example using \"iperf --bidir\" over NCM ethernet link.\n\nThe deadlock occurs because the threaded interrupt handler gets\npreempted by a softirq, but both are protected by the same spinlock.\nPrevent deadlock by disabling softirq during threaded irq handler."
        }
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          "url": "https://git.kernel.org/stable/c/48a62deb857f0694f611949015e70ad194d97159"
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          "url": "https://git.kernel.org/stable/c/a1059896f2bfdcebcdc7153c3be2307ea319501f"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37812",
    "datePublished": "2025-05-08T06:26:09.355Z",
    "dateReserved": "2025-04-16T04:51:23.942Z",
    "dateUpdated": "2025-11-03T19:55:45.167Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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