CVE-2024-50113

firewire: core: fix invalid port index for parent device

Description

In the Linux kernel, the following vulnerability has been resolved: firewire: core: fix invalid port index for parent device In a commit 24b7f8e5cd65 ("firewire: core: use helper functions for self ID sequence"), the enumeration over self ID sequence was refactored with some helper functions with KUnit tests. These helper functions are guaranteed to work expectedly by the KUnit tests, however their application includes a mistake to assign invalid value to the index of port connected to parent device. This bug affects the case that any extra node devices which has three or more ports are connected to 1394 OHCI controller. In the case, the path to update the tree cache could hits WARN_ON(), and gets general protection fault due to the access to invalid address computed by the invalid value. This commit fixes the bug to assign correct port index.

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.03%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/90753a38bc3d058820981f812a908a99f7b337c1	patch
https://git.kernel.org/stable/c/f6a6780e0b9bbcf311a727afed06fee533a5e957	patch

Frequently Asked Questions

What is the severity of CVE-2024-50113?: CVE-2024-50113 has been scored as a medium severity vulnerability.
How to fix CVE-2024-50113?: To fix CVE-2024-50113, 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-2024-50113 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-50113 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-2024-50113?: CVE-2024-50113 affects Linux Linux, Linux Linux.

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