CVE-2025-68374 (GCVE-0-2025-68374)

Vulnerability from cvelistv5 – Published: 2025-12-24 10:33 – Updated: 2026-10-21 12:38
VLAI
Title
md: fix rcu protection in md_wakeup_thread
Summary
In the Linux kernel, the following vulnerability has been resolved: md: fix rcu protection in md_wakeup_thread We attempted to use RCU to protect the pointer 'thread', but directly passed the value when calling md_wakeup_thread(). This means that the RCU pointer has been acquired before rcu_read_lock(), which renders rcu_read_lock() ineffective and could lead to a use-after-free.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4469315439827290923fce4f3f672599cabeb366 , < dc6d1249ee35c1c76700b4b96281daeb7637bce1 (git)
Affected: 4469315439827290923fce4f3f672599cabeb366 , < 21989cb5034c835b212385a2afadf279d8069da0 (git)
Affected: 4469315439827290923fce4f3f672599cabeb366 , < a4bd1caf591faeae44cb10b6517e7dacb5139bda (git)
Affected: 4469315439827290923fce4f3f672599cabeb366 , < f98b191f78124405294481dea85f8a22a3eb0a59 (git)
Affected: 4469315439827290923fce4f3f672599cabeb366 , < 0dc76205549b4c25705e54345f211b9f66e018a0 (git)
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Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 6.6.160 , ≤ 6.6.* (semver)
Unaffected: 6.12.63 , ≤ 6.12.* (semver)
Unaffected: 6.17.13 , ≤ 6.17.* (semver)
Unaffected: 6.18.2 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
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{
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd: fix rcu protection in md_wakeup_thread\n\nWe attempted to use RCU to protect the pointer \u0027thread\u0027, but directly\npassed the value when calling md_wakeup_thread(). This means that the\nRCU pointer has been acquired before rcu_read_lock(), which renders\nrcu_read_lock() ineffective and could lead to a use-after-free."
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      "providerMetadata": {
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    "datePublished": "2025-12-24T10:33:04.046Z",
    "dateReserved": "2025-12-16T14:48:05.310Z",
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          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmd: corregir la protecci\u00f3n RCU en md_wakeup_thread\n\nIntentamos usar RCU para proteger el puntero \u0027thread\u0027, pero pasamos directamente el valor al llamar a md_wakeup_thread(). Esto significa que el puntero RCU ha sido adquirido antes de rcu_read_lock(), lo que hace que rcu_read_lock() sea ineficaz y podr\u00eda conducir a un uso despu\u00e9s de liberaci\u00f3n."
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}



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