CVE-2023-53654
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-07

Last updated on: 2026-02-03

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Add validation before accessing cgx and lmac with the addition of new MAC blocks like CN10K RPM and CN10KB RPM_USX, LMACs are noncontiguous and CGX blocks are also noncontiguous. But during RVU driver initialization, the driver is assuming they are contiguous and trying to access cgx or lmac with their id which is resulting in kernel panic. This patch fixes the issue by adding proper checks. [ 23.219150] pc : cgx_lmac_read+0x38/0x70 [ 23.219154] lr : rvu_program_channels+0x3f0/0x498 [ 23.223852] sp : ffff000100d6fc80 [ 23.227158] x29: ffff000100d6fc80 x28: ffff00010009f880 x27: 000000000000005a [ 23.234288] x26: ffff000102586768 x25: 0000000000002500 x24: fffffffffff0f000
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2025-10-07
Last Modified
2026-02-03
Generated
2026-05-06
AI Q&A
2025-10-07
EPSS Evaluated
2026-05-05
NVD
CVE-2023-53654
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel From 5.15.160 (inc) to 5.16 (inc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability occurs in the Linux kernel's octeontx2-af driver, where the driver incorrectly assumes that certain hardware blocks (CGX and LMAC) are contiguous. However, with the addition of new MAC blocks like CN10K RPM and CN10KB RPM_USX, these blocks are noncontiguous. During the RVU driver initialization, this incorrect assumption causes the driver to access CGX or LMAC by their IDs improperly, leading to a kernel panic (system crash). The issue is fixed by adding proper validation checks before accessing these blocks.


How can this vulnerability impact me? :

This vulnerability can cause a kernel panic, which means the Linux system could crash unexpectedly during the initialization of the RVU driver. This can lead to system instability, downtime, and potential loss of data or service availability.


Ask Our AI Assistant
Need more information? Ask your question to get an AI reply (Powered by our expertise)
0/70
EPSS Chart