CVE-2023-52790

swiotlb: fix out-of-bounds TLB allocations with CONFIG_SWIOTLB_DYNAMIC

Description

In the Linux kernel, the following vulnerability has been resolved: swiotlb: fix out-of-bounds TLB allocations with CONFIG_SWIOTLB_DYNAMIC Limit the free list length to the size of the IO TLB. Transient pool can be smaller than IO_TLB_SEGSIZE, but the free list is initialized with the assumption that the total number of slots is a multiple of IO_TLB_SEGSIZE. As a result, swiotlb_area_find_slots() may allocate slots past the end of a transient IO TLB buffer.

N/A

CVSS

Severity:

EPSS 0.08%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/ce7612496a4ba6068bc68aa1fa9d947dadb4ad9b
https://git.kernel.org/stable/c/53c87e846e335e3c18044c397cc35178163d7827

Frequently Asked Questions

What is the severity of CVE-2023-52790?: CVE-2023-52790 has not yet been assigned a CVSS score.
How to fix CVE-2023-52790?: To fix CVE-2023-52790, 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-2023-52790 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-52790 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-2023-52790?: CVE-2023-52790 affects Linux Linux, Linux Linux.

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