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CVE-2023-54255

10
FAUCET Score

CVE-2023-54255 is a Linux kernel vulnerability affecting various SH3, SH4, and SH4A SoCs that utilize a specific DMA driver. The flaw stems from incorrect DMA channel offset calculations, which can lead to kernel panics due to variations in DMA channel distribution across up to two DMAC modules. While no CVSS score is available, the potential impact of a kernel panic suggests a denial-of-service risk. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
LinuxLinux
3.5CNA affecteddefault affected
LinuxLinux
>= 7f47c7189b3e8f19a589f77a3ad169d7b691b582, < 196f6c71905aa384c0177acf194a1144d480333b, >= 7f47c7189b3e8f19a589f77a3ad169d7b691b582, < 479380acfa63247b5ac62476138f847aefc62692, >= 7f47c7189b3e8f19a589f77a3ad169d7b691b582, < 4989627157735c1f1619f08e5bc1592418e7c878, >= 7f47c7189b3e8f19a589f77a3ad169d7b691b582, < 8fb11fa4805699c6b73a9c8a9d45807f9874abe3, >= 7f47c7189b3e8f19a589f77a3ad169d7b691b582, < bca700b48c72f4ffeee977a2ed0eb4a6b4b7b8ad, >= 7f47c7189b3e8f19a589f77a3ad169d7b691b582, < d1c946552af299f4fa85bf7da15e328123771128, >= 7f47c7189b3e8f19a589f77a3ad169d7b691b582, < e82e47584847129a20b8c9f4a1dcde09374fb0e0, >= 7f47c7189b3e8f19a589f77a3ad169d7b691b582, < e9e33faea104381bac80ac79328f0540fc2969f2CNA affecteddefault unaffected

CVSS Data

CVSS data has not been published for this CVE.

Exploit Intelligence

EPSS Score
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
7.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15

Social Chatter

No social media mentions found for this CVE.

Media Mentions

No media coverage found for this CVE.

Remediation

Vendor Advisories (1)

redhatCVE-2023-54255

kernel: sh: dma: Fix DMA channel offset calculation

Dec 30, 2025

References

git.kernel.org / stable/c/196f6c71905aa384c0177acf194a1144d480333b
git.kernel.org / stable/c/479380acfa63247b5ac62476138f847aefc62692
git.kernel.org / stable/c/4989627157735c1f1619f08e5bc1592418e7c878
git.kernel.org / stable/c/8fb11fa4805699c6b73a9c8a9d45807f9874abe3
git.kernel.org / stable/c/bca700b48c72f4ffeee977a2ed0eb4a6b4b7b8ad
git.kernel.org / stable/c/d1c946552af299f4fa85bf7da15e328123771128
git.kernel.org / stable/c/e82e47584847129a20b8c9f4a1dcde09374fb0e0
git.kernel.org / stable/c/e9e33faea104381bac80ac79328f0540fc2969f2