CVE-2024-46834

ethtool: fail closed if we can't get max channel used in indirection tables

Description

In the Linux kernel, the following vulnerability has been resolved: ethtool: fail closed if we can't get max channel used in indirection tables Commit 0d1b7d6c9274 ("bnxt: fix crashes when reducing ring count with active RSS contexts") proves that allowing indirection table to contain channels with out of bounds IDs may lead to crashes. Currently the max channel check in the core gets skipped if driver can't fetch the indirection table or when we can't allocate memory. Both of those conditions should be extremely rare but if they do happen we should try to be safe and fail the channel change.

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.03%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/101737d8b88dbd4be6010bac398fe810f1950036	patch
https://git.kernel.org/stable/c/2899d58462ba868287d6ff3acad3675e7adf934f	patch

Frequently Asked Questions

What is the severity of CVE-2024-46834?: CVE-2024-46834 has been scored as a medium severity vulnerability.
How to fix CVE-2024-46834?: To fix CVE-2024-46834, 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-2024-46834 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-46834 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-2024-46834?: CVE-2024-46834 affects Linux Linux, Linux Linux.

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