md: fix rcu protection in md_wakeup_thread
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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0dc76205549b4c25705e54345f211b9f66e018a0
- https://git.kernel.org/stable/c/21989cb5034c835b212385a2afadf279d8069da0
- https://git.kernel.org/stable/c/a4bd1caf591faeae44cb10b6517e7dacb5139bda
- https://git.kernel.org/stable/c/f98b191f78124405294481dea85f8a22a3eb0a59
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/68xxx/CVE-2025-68374.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-68374