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CVE-2023-54043

11
FAUCET Score

CVE-2023-54043 addresses a vulnerability in the Linux kernel where a hardware page table (hwpt) could be erroneously added twice to the ioas->hwpt_list, potentially corrupting the linked list. This issue specifically impacts HWPT-specific attachments, a scenario difficult to reproduce in current test environments. While no CVSS score is available, its FAUCET Risk Score is 7/100, and its EPSS score is very low, indicating a minimal likelihood of exploitation. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
LinuxLinux
6.2CNA affecteddefault affected
LinuxLinux
>= e8d57210035b6377d424ba964961892d01127cf6, < b4ff830eca097df51af10a9be29e8cc817327919, >= e8d57210035b6377d424ba964961892d01127cf6, < c44adefdcf472f946f0632f4e0ddcbf3e00b8516CNA affecteddefault unaffected

CVSS Data

CVSS data has not been published for this CVE.

Exploit Intelligence

EPSS Score
0.20%
Probability of exploitation in next 30 days
EPSS Percentile
9.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15

Social Chatter

Media Mentions

No media coverage found for this CVE.

Remediation

Vendor Patches (2)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2023-54043Low

kernel: iommufd: Do not add the same hwpt to the ioas->hwpt_list twice

Dec 24, 2025

References

git.kernel.org / stable/c/b4ff830eca097df51af10a9be29e8cc817327919
git.kernel.org / stable/c/c44adefdcf472f946f0632f4e0ddcbf3e00b8516