CVE-2022-48652

Kernel crash via stale traffic-class configuration

Published Apr 28, 2024 · Updated Aug 5, 2026

Denial of service in the Linux ice driver 5.19 through 5.19.11 allows local users to crash the kernel during DCB reconfiguration. When ice_vsi_cfg_tc() rejects a traffic-class update because allocated queues are insufficient, it leaves num_txq, num_rxq, and tc_cfg changed instead of restoring the prior configuration. A subsequent queue setup can dereference the invalid retained state; reachability requires the ice driver, DCB configuration, and more traffic classes than allocated queues.

CVSS severity5.5
Medium
EPSS probability0.29%
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 Linux ice driver 5.19 through 5.19.11 allows local users to crash the kernel during DCB reconfiguration. When ice_vsi_cfg_tc() rejects a traffic-class update because allocated queues are insufficient, it leaves num_txq, num_rxq, and tc_cfg changed instead of restoring the prior configuration. A subsequent queue setup can dereference the invalid retained state; reachability requires the ice driver, DCB configuration, and more traffic classes than allocated queues.

The record

CVE
CVE-2022-48652
Published
Apr 28, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 28, 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=4520c4bf4dca7aa285f30cb1ca8c08c531bbf0e9
  2. Affected versionversion=5.18.8 <5.19
  3. Affected versionversion=5.19
  4. Affected versionversion=a632b2a4c920ce5af29410fb091f7ee6d2e77dc6 <7c945e5b4787db47d728120b56c934ba05f99864
  5. Affected versionversion=a632b2a4c920ce5af29410fb091f7ee6d2e77dc6 <a509702cac95a8b450228a037c8542f57e538e5b

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4520c4bf4dca7aa285f30cb1ca8c08c531bbf0e9; version=5.18.8 <5.19; version=5.19; version=a632b2a4c920ce5af29410fb091f7ee6d2e77dc6 <7c945e5b4787db47d728120b56c934ba05f99864; version=a632b2a4c920ce5af29410fb091f7ee6d2e77dc6 <a509702cac95a8b450228a037c8542f57e538e5b

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 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-476NULL Pointer Dereference
T1499Endpoint Denial of Service

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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