CVE-2022-49389

low-risk
Published 2025-02-26

In the Linux kernel, the following vulnerability has been resolved: usb: usbip: fix a refcount leak in stub_probe() usb_get_dev() is called in stub_device_alloc(). When stub_probe() fails after that, usb_put_dev() needs to be called to release the reference. Fix this by moving usb_put_dev() to sdev_free error path handling. Find this by code review.

Do I need to act?

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0.04% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (9)

Patch https://git.kernel.org/stable/c/11c65408bd0ba1d9cd1307caa38169292de9cdfb
Patch https://git.kernel.org/stable/c/247d3809e45a34d9e1a3a2bb7012e31ed8b46031
Patch https://git.kernel.org/stable/c/2f0ae93ec33c8456cdfbf7876b80403a6318ebce
Patch https://git.kernel.org/stable/c/51422046be504515eb5a591adf0f424b62f46804
Patch https://git.kernel.org/stable/c/6bafee2f18af5e5ac125e42960bc65496d0e56a0
Patch https://git.kernel.org/stable/c/8afb048800919d0ab10c57983940eba956339f21
Patch https://git.kernel.org/stable/c/9ec4cbf1cc55d126759051acfe328d489c5d6e60
Patch https://git.kernel.org/stable/c/bcbb795a9e78180d74c6ab21518da87e803dfdce
Patch https://git.kernel.org/stable/c/f20d2d3b3364ce6525c050a8b6b4c54c8c19674d
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal