CVE-2024-26634

net: fix removing a namespace with conflicting altnames

Description

In the Linux kernel, the following vulnerability has been resolved: net: fix removing a namespace with conflicting altnames Mark reports a BUG() when a net namespace is removed. kernel BUG at net/core/dev.c:11520! Physical interfaces moved outside of init_net get "refunded" to init_net when that namespace disappears. The main interface name may get overwritten in the process if it would have conflicted. We need to also discard all conflicting altnames. Recent fixes addressed ensuring that altnames get moved with the main interface, which surfaced this problem.

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.01%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/a2232f29bf52c24f827865b3c90829c44b6c695b	patch mailing list
https://git.kernel.org/stable/c/e855dded4b70d1975ee7b9fed0c700391e3c8ea6	patch mailing list
https://git.kernel.org/stable/c/8072699aa9e67d1727692cfb3c347263bb627fb9	patch mailing list
https://git.kernel.org/stable/c/d09486a04f5da0a812c26217213b89a3b1acf836	patch mailing list

Frequently Asked Questions

What is the severity of CVE-2024-26634?: CVE-2024-26634 has been scored as a medium severity vulnerability.
How to fix CVE-2024-26634?: To fix CVE-2024-26634, 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-2024-26634 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-26634 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-2024-26634?: CVE-2024-26634 affects Linux Linux, Linux Linux.

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