CVE-2024-41032

mm: vmalloc: check if a hash-index is in cpu_possible_mask

Description

In the Linux kernel, the following vulnerability has been resolved: mm: vmalloc: check if a hash-index is in cpu_possible_mask The problem is that there are systems where cpu_possible_mask has gaps between set CPUs, for example SPARC. In this scenario addr_to_vb_xa() hash function can return an index which accesses to not-possible and not setup CPU area using per_cpu() macro. This results in an oops on SPARC. A per-cpu vmap_block_queue is also used as hash table, incorrectly assuming the cpu_possible_mask has no gaps. Fix it by adjusting an index to a next possible CPU.

N/A

CVSS

Severity:

EPSS 0.11%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/28acd531c9a365dac01b32e6bc54aed8c1429bcb
https://git.kernel.org/stable/c/47f9b6e49b422392fb0e348a65eb925103ba1882
https://git.kernel.org/stable/c/a34acf30b19bc4ee3ba2f1082756ea2604c19138

Frequently Asked Questions

What is the severity of CVE-2024-41032?: CVE-2024-41032 has not yet been assigned a CVSS score.
How to fix CVE-2024-41032?: To fix CVE-2024-41032, 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-2024-41032 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-41032 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-2024-41032?: CVE-2024-41032 affects Linux Linux, Linux Linux.

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