CVE-2022-49929
5.5 · MEDIUMIn the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix mr leak in RESPST_ERR_RNR rxe_recheck_mr() will increase mr's ref_cnt, so we should call rxe_put(mr) to drop mr's…
Overview
CVE-2022-49929 is a medium-severity vulnerability. It was published on May 1, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical description
In the Linux kernel, the following vulnerability has been resolved:
RDMA/rxe: Fix mr leak in RESPST_ERR_RNR
rxe_recheck_mr() will increase mr's ref_cnt, so we should call rxe_put(mr)
to drop mr's ref_cnt in RESPST_ERR_RNR to avoid below warning:
WARNING: CPU: 0 PID: 4156 at drivers/infiniband/sw/rxe/rxe_pool.c:259 __rxe_cleanup+0x1df/0x240 [rdma_rxe]
...
Call Trace:
rxe_dereg_mr+0x4c/0x60 [rdma_rxe]
ib_dereg_mr_user+0xa8/0x200 [ib_core]
ib_mr_pool_destroy+0x77/0xb0 [ib_core]
nvme_rdma_destroy_queue_ib+0x89/0x240 [nvme_rdma]
nvme_rdma_free_queue+0x40/0x50 [nvme_rdma]
nvme_rdma_teardown_io_queues.part.0+0xc3/0x120 [nvme_rdma]
nvme_rdma_error_recovery_work+0x4d/0xf0 [nvme_rdma]
process_one_work+0x582/0xa40
? pwq_dec_nr_in_flight+0x100/0x100
? rwlock_bug.part.0+0x60/0x60
worker_thread+0x2a9/0x700
? process_one_work+0xa40/0xa40
kthread+0x168/0x1a0
? kthread_complete_and_exit+0x20/0x20
ret_from_fork+0x22/0x30
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.
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Frequently asked questions
What is CVE-2022-49929?
CVE-2022-49929 is a medium-severity vulnerability. It was published on May 1, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2022-49929?
This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2022-49929?
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-2022-49929?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49929 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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