Review reviewHigh

CVE-2023-54201

Linux

In the Linux kernel, the following vulnerability has been resolved: RDMA/efa: Fix wrong resources deallocation order When trying to destroy QP or CQ, we first decrease the refcount and potentially free memory regions allocated for the object and then request the device to destroy the object. If the device fails, the object isn't fully destroyed so the user/IB core can try to destroy the object again which will lead to underflow when trying to decrease an already zeroed refcount. Deallocate resources in reverse order of allocating them to safely free them.

CVSS: 7.8
EPSS: 0.13%
CISA KEV: Not listed
Published: 2025.12.30

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.13%

Technical severityCVSS 7.8

Vulnerability overview

Affected product and versions

Product: Linux
Affected versions: >= ff6629f88c529b07d9704c656c64dae76910e3e9 < cf38960386f3cc4abf395e556af915e4babcafd2, >= ff6629f88c529b07d9704c656c64dae76910e3e9 < e79db2f51a564fd4daa3e508b987df5e81c34b20, >= ff6629f88c529b07d9704c656c64dae76910e3e9 < 24f9884971f9b34915b67baacf7350a3f6f19ea4, >= ff6629f88c529b07d9704c656c64dae76910e3e9 < dc202c57e9a1423aed528e4b8dc949509cd32191, >= 5.7
Fixed versions: No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Linux and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: Not available