CVE-2022-49433

Service interruption via uninitialized cleanup lock

Published Feb 26, 2025 · Updated May 11, 2026

Improper resource initialization in Linux RDMA/hfi1 allows local users to interrupt service during failed PCI device probing. When probe fails before sdma_map_lock initialization, hfi1_free_devdata calls sdma_clean, which locks the uninitialized object despite sdma_map being null. The published assessment requires low-privileged local access; reported effects are an INFO trace and locking-validator shutdown, with no data access.

CVSS severity5.5
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper resource initialization in Linux RDMA/hfi1 allows local users to interrupt service during failed PCI device probing. When probe fails before sdma_map_lock initialization, hfi1_free_devdata calls sdma_clean, which locks the uninitialized object despite sdma_map being null. The published assessment requires low-privileged local access; reported effects are an INFO trace and locking-validator shutdown, with no data access.

The record

CVE
CVE-2022-49433
Published
Feb 26, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-908
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=4.3
  2. Affected versionversion=7724105686e718ac476a6ad3304fea2fbcfcffde <05c03dfd09c069c4ffd783b47b2da5dcc9421f2c
  3. Affected versionversion=7724105686e718ac476a6ad3304fea2fbcfcffde <288d198f50434f29b4a26a9de4394ae2305ad8af
  4. Affected versionversion=7724105686e718ac476a6ad3304fea2fbcfcffde <30eb275e7ed588270ae159cc590a96658e0cfd8f
  5. Affected versionversion=7724105686e718ac476a6ad3304fea2fbcfcffde <66090815a24ce14cf51ef5453fc0218fe8a39bc2
  6. Affected versionversion=7724105686e718ac476a6ad3304fea2fbcfcffde <addb192000d8819c0b1553453994df9bb54c28db
  7. Affected versionversion=7724105686e718ac476a6ad3304fea2fbcfcffde <ca55150bff5817af4f857a746ecab9862c23e12a
  8. Affected versionversion=7724105686e718ac476a6ad3304fea2fbcfcffde <fc0750e659db7b315bf6348902cc8ca3cdd4b8d8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.3; version=7724105686e718ac476a6ad3304fea2fbcfcffde <05c03dfd09c069c4ffd783b47b2da5dcc9421f2c; version=7724105686e718ac476a6ad3304fea2fbcfcffde <288d198f50434f29b4a26a9de4394ae2305ad8af; version=7724105686e718ac476a6ad3304fea2fbcfcffde <30eb275e7ed588270ae159cc590a96658e0cfd8f; version=7724105686e718ac476a6ad3304fea2fbcfcffde <66090815a24ce14cf51ef5453fc0218fe8a39bc2; version=7724105686e718ac476a6ad3304fea2fbcfcffde <addb192000d8819c0b1553453994df9bb54c28db; version=7724105686e718ac476a6ad3304fea2fbcfcffde <ca55150bff5817af4f857a746ecab9862c23e12a; version=7724105686e718ac476a6ad3304fea2fbcfcffde <fc0750e659db7b315bf6348902cc8ca3cdd4b8d8

Published CVSS scores

5.5NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-908Use of Uninitialized Resource

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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