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()").

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 4% of CVEs (scores of 2026-10-25)

Published

2025-12-30

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

References

• https://git.kernel.org/stable/c/196a6df08b08699ace4ce70e1efcdd9081b6565f
• https://git.kernel.org/stable/c/3ce0df3493277b9df275cb8455d9c677ae701230
• https://git.kernel.org/stable/c/3d5ae269c4bd392ec1edbfb3bd031b8f42d7feff
• https://git.kernel.org/stable/c/8feca625900777e02a449e53fe4121339934c38a
• https://git.kernel.org/stable/c/9911be2155720221a4f1f722b22bd0e2388d8bcf

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