CVE-2022-48925

Local privilege escalation via RDMA state corruption

Published Aug 22, 2024 · Updated Aug 5, 2026

Use-after-free in Linux kernel RDMA/cma allows local users to gain kernel privileges through crafted RDMA connection-manager commands. resolve_prepare_src() overwrites route.addr.src_addr before confirming that the connection state is idle, leaving a freed rdma_id_private linked on listen_any_list. An unprivileged user with local access to /dev/infiniband/rdma_cm can disclose kernel memory, corrupt kernel control flow, or panic the host.

CVSS severity7.8
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Linux kernel RDMA/cma allows local users to gain kernel privileges through crafted RDMA connection-manager commands. resolve_prepare_src() overwrites route.addr.src_addr before confirming that the connection state is idle, leaving a freed rdma_id_private linked on listen_any_list. An unprivileged user with local access to /dev/infiniband/rdma_cm can disclose kernel memory, corrupt kernel control flow, or panic the host.

The record

CVE
CVE-2022-48925
Published
Aug 22, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 22, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.10
  2. Affected versionversion=732d41c545bb359cbb8c94698bdc1f8bcf82279c <00265efbd3e5705038c9492a434fda8cf960c8a2
  3. Affected versionversion=732d41c545bb359cbb8c94698bdc1f8bcf82279c <22e9f71072fa605cbf033158db58e0790101928d
  4. Affected versionversion=732d41c545bb359cbb8c94698bdc1f8bcf82279c <5b1cef5798b4fd6e4fd5522e7b8a26248beeacaa
  5. Affected versionversion=732d41c545bb359cbb8c94698bdc1f8bcf82279c <d350724795c7a48b05bf921d94699fbfecf7da0b

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.10; version=732d41c545bb359cbb8c94698bdc1f8bcf82279c <00265efbd3e5705038c9492a434fda8cf960c8a2; version=732d41c545bb359cbb8c94698bdc1f8bcf82279c <22e9f71072fa605cbf033158db58e0790101928d; version=732d41c545bb359cbb8c94698bdc1f8bcf82279c <5b1cef5798b4fd6e4fd5522e7b8a26248beeacaa; version=732d41c545bb359cbb8c94698bdc1f8bcf82279c <d350724795c7a48b05bf921d94699fbfecf7da0b

Published CVSS scores

7.8Linux kernel CVE teamCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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