CVE-2022-48823

I/O hang via leaked task-management reference

Published Jul 16, 2024 · Updated Aug 12, 2026

Denial of service in the qedf SCSI driver in Linux 4.11 through 5.17-rc1 allows local users to hang an I/O during concurrent LOGO and TMF handling. During forced completion in qedf_initiate_cleanup(), the task-management path clears command state and signals completion without dropping the io_req reference. The condition requires a qedf Fibre Channel session to receive LOGO while a LUN or target reset is active, leaving storage I/O blocked rather than corrupting data.

CVSS severity5.5
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in the qedf SCSI driver in Linux 4.11 through 5.17-rc1 allows local users to hang an I/O during concurrent LOGO and TMF handling. During forced completion in qedf_initiate_cleanup(), the task-management path clears command state and signals completion without dropping the io_req reference. The condition requires a qedf Fibre Channel session to receive LOGO while a LUN or target reset is active, leaving storage I/O blocked rather than corrupting data.

The record

CVE
CVE-2022-48823
Published
Jul 16, 2024
Updated
Aug 12, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 16, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 12, 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=5.2
  2. Affected versionversion=69ef2c692510d5154c613569caeeed3c74806231 <5239ab63f17cee643bd4bf6addfedebaa7d4f41e
  3. Affected versionversion=69ef2c692510d5154c613569caeeed3c74806231 <6be8eaad75ca73131e2a697f0270dc8ee73814a8
  4. Affected versionversion=69ef2c692510d5154c613569caeeed3c74806231 <7cc32ff0cd6c44a3c26de5faecfe8b5546198fad
  5. Affected versionversion=69ef2c692510d5154c613569caeeed3c74806231 <7fcbed38503bb34c6e6538b6a9482d1c6bead1e8
  6. Affected versionversion=69ef2c692510d5154c613569caeeed3c74806231 <87f187e5265bc8e3b38faef8b9db864cdd61dde7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.2; version=69ef2c692510d5154c613569caeeed3c74806231 <5239ab63f17cee643bd4bf6addfedebaa7d4f41e; version=69ef2c692510d5154c613569caeeed3c74806231 <6be8eaad75ca73131e2a697f0270dc8ee73814a8; version=69ef2c692510d5154c613569caeeed3c74806231 <7cc32ff0cd6c44a3c26de5faecfe8b5546198fad; version=69ef2c692510d5154c613569caeeed3c74806231 <7fcbed38503bb34c6e6538b6a9482d1c6bead1e8; version=69ef2c692510d5154c613569caeeed3c74806231 <87f187e5265bc8e3b38faef8b9db864cdd61dde7

Published CVSS scores

5.5NIST NVDCVSS: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

T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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