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CVE-2025-21885

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Fix the page details for the srq created by kernel consumers While using nvme target with use_srq on, below kerne…

Published Mar 27, 2025EPSS 0.56%

Overview

CVE-2025-21885 is a high-severity vulnerability. It was published on March 27, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

RDMA/bnxt_re: Fix the page details for the srq created by kernel consumers

While using nvme target with use_srq on, below kernel panic is noticed.

[ 549.698111] bnxt_en 0000:41:00.0 enp65s0np0: FEC autoneg off encoding: Clause 91 RS(544,514)

[ 566.393619] Oops: divide error: 0000 [#1] PREEMPT SMP NOPTI

..

[ 566.393799] <TASK>

[ 566.393807] ? __die_body+0x1a/0x60

[ 566.393823] ? die+0x38/0x60

[ 566.393835] ? do_trap+0xe4/0x110

[ 566.393847] ? bnxt_qplib_alloc_init_hwq+0x1d4/0x580 [bnxt_re]

[ 566.393867] ? bnxt_qplib_alloc_init_hwq+0x1d4/0x580 [bnxt_re]

[ 566.393881] ? do_error_trap+0x7c/0x120

[ 566.393890] ? bnxt_qplib_alloc_init_hwq+0x1d4/0x580 [bnxt_re]

[ 566.393911] ? exc_divide_error+0x34/0x50

[ 566.393923] ? bnxt_qplib_alloc_init_hwq+0x1d4/0x580 [bnxt_re]

[ 566.393939] ? asm_exc_divide_error+0x16/0x20

[ 566.393966] ? bnxt_qplib_alloc_init_hwq+0x1d4/0x580 [bnxt_re]

[ 566.393997] bnxt_q

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/2cf8e6b52aecb8fbb71c41fe5add3212814031a2Refgit.kernel.org/stable/c/722c3db62bf60cd23acbdc8c4f445bfedae4498eRefgit.kernel.org/stable/c/b66535356a4834a234f99e16a97eb51f2c6c5a7d

How CyberStrike helps

Frequently asked questions

What is CVE-2025-21885?

CVE-2025-21885 is a high-severity vulnerability. It was published on March 27, 2025 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-21885?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2025-21885?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-21885?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-21885 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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