What’s Vulnerable › Vulnerabilities

CVE-2022-50810: rapidio: devices: fix missing put_device in mport_cdev_open

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-30 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: rapidio: devices: fix missing put_device in mport_cdev_open When kfifo_alloc fails, the refcount of chdev->dev is left incremental. We should use put_device(&chdev->dev) to decrease the ref count of chdev->dev to avoid refcount leak.

Affected products

• Linux kernel: 4.6 — fixed in 6.2

How to fix

Upgrade to a fixed version: Linux kernel 6.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/162433a96079bfa5ec748c486b4570f138d04fb5
• https://git.kernel.org/stable/c/53915ecc43c5139d6cdd1caa4fdc9290b9597008
• https://git.kernel.org/stable/c/6e4540e0970030e140998ce8847f5f0171b5afa1
• https://git.kernel.org/stable/c/a0d93aac54ce07a7cc71e90645d0cdabbda50450
• https://git.kernel.org/stable/c/ae57222402bea455e60cc51d2f52ce73b63b7af8
• https://git.kernel.org/stable/c/b596242585984b5f3085aa8f7a82c65640b384b6
• https://git.kernel.org/stable/c/bb7397f6312d2cbf05e415676ed5b1655cb82a34
• https://git.kernel.org/stable/c/d5b6e6eba3af11cb2a2791fa36a2524990fcde1a
• https://git.kernel.org/stable/c/dfee9fe93dd34cd9d49520718f6ec2072de25e48

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