Is CVE-2023-54255 in the CISA KEV catalog?

No. CVE-2023-54255 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the EPSS score for CVE-2023-54255?

CVE-2023-54255 has an EPSS score of 0.18% (7th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-54255?

Upgrade linux on debian 11 to 5.10.191-1 or later.

CVE & CISA-KEV Catalog

CVE-2023-54255

UNSCORED

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: sh: dma: Fix DMA channel offset calculation Various SoCs of the SH3, SH4 and SH4A family, which use this driver, feature a differing number of DMA channels, which can be distributed between up to two DMAC modules. The existing implementation fails to correctly accommodate for all those variations, resulting in wrong channel offset calculations and leading to kernel panics. Rewrite dma_base_addr() in order to properly calculate channel offsets in a DMAC module. Fix dmaor_read_reg() and dmaor_write_reg(), so that the correct DMAC module base is selected for the DMAOR register.

How to fix

Remediation Available

linuxDebian

Fixed in:5.10.191-1CVE-2023-54255

Fixed in:6.1.52-1CVE-2023-54255

Fixed in:6.4.4-1CVE-2023-54255

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3.1 Vector

No CVSS vector data available.

Exploit Intelligence

0.18%probability of exploitation in 30 days

7thpercentile

Low risk: more likely to be exploited than 7% of all known CVEs.

References

Other references8

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-12-31.