Vulnerability in Linux

CVE-2023-54168

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()").

EPSS: 0.002 (7.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Linux — versions 839041329fd3410e07d614f81e75bb43367d8f89, 2.6.24, 0

References

Frequently asked questions

What is CVE-2023-54168?
CVE-2023-54168 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2025-12-30.
How severe is CVE-2023-54168?
High severity. CVSS v3 base score is 7.8 out of 10.