CVE-2022-48650

Service interruption via leaked ABTS management commands

Published Apr 28, 2024 · Updated May 11, 2026

Memory leak in the Linux kernel qla2xxx SCSI target driver allows local users to exhaust kernel memory through repeated ABTS requests. The __qlt_24xx_handle_abts() error path returns when a command tag lookup fails without freeing the allocated management command. Reachability requires the qla2xxx target path and an unmatched ABTS command tag; repeated triggers consume kernel memory and interrupt service.

CVSS severity4.7
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leak in the Linux kernel qla2xxx SCSI target driver allows local users to exhaust kernel memory through repeated ABTS requests. The __qlt_24xx_handle_abts() error path returns when a command tag lookup fails without freeing the allocated management command. Reachability requires the qla2xxx target path and an unmatched ABTS command tag; repeated triggers consume kernel memory and interrupt service.

The record

CVE
CVE-2022-48650
Published
Apr 28, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 28, 2024CVE 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

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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=5.11
  2. Affected versionversion=8f394da36a361cbe0e1e8b1d4213e5598c8095ac <601be20fc6a1b762044d2398befffd6bf236cebf
  3. Affected versionversion=8f394da36a361cbe0e1e8b1d4213e5598c8095ac <6a4236ed47f5b0a57eb6b8fb1c351b15b3d341d7
  4. Affected versionversion=8f394da36a361cbe0e1e8b1d4213e5598c8095ac <89df49e561b4a8948521fc3f8a013012eaa08f82

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.11; version=8f394da36a361cbe0e1e8b1d4213e5598c8095ac <601be20fc6a1b762044d2398befffd6bf236cebf; version=8f394da36a361cbe0e1e8b1d4213e5598c8095ac <6a4236ed47f5b0a57eb6b8fb1c351b15b3d341d7; version=8f394da36a361cbe0e1e8b1d4213e5598c8095ac <89df49e561b4a8948521fc3f8a013012eaa08f82

Published CVSS scores

4.7CISA-ADPCVSS:3.1/AV:L/AC:H/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 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-401Missing Release of Memory after Effective Lifetime
T1499.004Application or System Exploitation

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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