CVE-2024-38554

low-risk
Published 2024-06-19

In the Linux kernel, the following vulnerability has been resolved: ax25: Fix reference count leak issue of net_device There is a reference count leak issue of the object "net_device" in ax25_dev_device_down(). When the ax25 device is shutting down, the ax25_dev_device_down() drops the reference count of net_device one or zero times depending on if we goto unlock_put or not, which will cause memory leak. In order to solve the above issue, decrease the reference count of net_device after dev->ax25_ptr is set to null.

Do I need to act?

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0.02% 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 (10)

Patch https://git.kernel.org/stable/c/36e56b1b002bb26440403053f19f9e1a8bc075b2
Patch https://git.kernel.org/stable/c/3ec437f9bbae68e9b38115c4c91de995f73f6bad
Patch https://git.kernel.org/stable/c/8bad3a20a27be8d935f2aae08d3c6e743754944a
Patch https://git.kernel.org/stable/c/965d940fb7414b310a22666503d2af69459c981b
Patch https://git.kernel.org/stable/c/eef95df9b752699bddecefa851f64858247246e9
Patch https://git.kernel.org/stable/c/36e56b1b002bb26440403053f19f9e1a8bc075b2
Patch https://git.kernel.org/stable/c/3ec437f9bbae68e9b38115c4c91de995f73f6bad
Patch https://git.kernel.org/stable/c/8bad3a20a27be8d935f2aae08d3c6e743754944a
Patch https://git.kernel.org/stable/c/965d940fb7414b310a22666503d2af69459c981b
Patch https://git.kernel.org/stable/c/eef95df9b752699bddecefa851f64858247246e9
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal