CVE-2024-38554

ax25: Fix reference count leak issue of net_device

Description

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.

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.05%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/3ec437f9bbae68e9b38115c4c91de995f73f6bad	patch
https://git.kernel.org/stable/c/965d940fb7414b310a22666503d2af69459c981b	patch
https://git.kernel.org/stable/c/8bad3a20a27be8d935f2aae08d3c6e743754944a	patch
https://git.kernel.org/stable/c/eef95df9b752699bddecefa851f64858247246e9	patch
https://git.kernel.org/stable/c/36e56b1b002bb26440403053f19f9e1a8bc075b2	patch

Frequently Asked Questions

What is the severity of CVE-2024-38554?: CVE-2024-38554 has been scored as a medium severity vulnerability.
How to fix CVE-2024-38554?: To fix CVE-2024-38554, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-38554 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-38554 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-38554?: CVE-2024-38554 affects Linux Linux, Linux Linux.

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