CVE-2023-54168
Unknown Unknown - Not Provided
Integer Overflow Vulnerability in Linux RDMA mlx4 Driver

Publication date: 2025-12-30

Last updated on: 2025-12-30

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx4: Prevent shift wrapping in set_user_sq_size() The ucmd->log_sq_bb_count variable is controlled by the user so this shift can wrap. Fix it by using check_shl_overflow() in the same way that it was done in commit 515f60004ed9 ("RDMA/hns: Prevent undefined behavior in hns_roce_set_user_sq_size()").
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2025-12-30
Last Modified
2025-12-30
Generated
2026-05-07
AI Q&A
2025-12-30
EPSS Evaluated
2026-05-05
NVD
CVE-2023-54168
EUVD
EUVD-2023-60473
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
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 involves a shift operation in the Linux kernel's RDMA/mlx4 driver where the variable 'ucmd->log_sq_bb_count', which is controlled by the user, can cause a shift wrapping issue. This means that the shift operation can overflow or wrap around, potentially leading to undefined or unintended behavior. The fix involves using a function called check_shl_overflow() to prevent this shift wrapping, similar to a previous fix in another RDMA driver component.


How can this vulnerability impact me? :

The vulnerability could lead to undefined or unintended behavior in the Linux kernel's RDMA/mlx4 driver due to shift wrapping caused by user-controlled input. This might result in system instability, crashes, or potentially exploitable conditions depending on how the kernel handles the erroneous shift operation.


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