CVE-2022-48941

Kernel panic via unsynchronized VF teardown

Published Aug 22, 2024 · Updated Aug 5, 2026

Race condition in the ice driver in affected Linux kernels allows local users to trigger a kernel panic during virtual-function teardown. The reset and removal paths run concurrently without sharing cfg_lock, allowing a VF reset to overlap PF removal and corrupt memory. Exploitation requires local low-privileged access to initiate a VF reset immediately before removal on a host using the ice driver with SR-IOV VFs.

CVSS severity8.8
High
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in the ice driver in affected Linux kernels allows local users to trigger a kernel panic during virtual-function teardown. The reset and removal paths run concurrently without sharing cfg_lock, allowing a VF reset to overlap PF removal and corrupt memory. Exploitation requires local low-privileged access to initiate a VF reset immediately before removal on a host using the ice driver with SR-IOV VFs.

The record

CVE
CVE-2022-48941
Published
Aug 22, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-362, T1499
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

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=5.13.12 <5.14
  2. Affected versionversion=5.14
  3. Affected versionversion=8a08142433624fd1088bc8c13639408cf4e1707c
  4. Affected versionversion=c503e63200c679e362afca7aca9d3dc63a0f45ed <2a3e61de89bab6696aa28b70030eb119968c5586
  5. Affected versionversion=c503e63200c679e362afca7aca9d3dc63a0f45ed <3c805fce07c9dbc47d8a9129c7c5458025951957
  6. Affected versionversion=c503e63200c679e362afca7aca9d3dc63a0f45ed <fadead80fe4c033b5e514fcbadd20b55c4494112

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.13.12 <5.14; version=5.14; version=8a08142433624fd1088bc8c13639408cf4e1707c; version=c503e63200c679e362afca7aca9d3dc63a0f45ed <2a3e61de89bab6696aa28b70030eb119968c5586; version=c503e63200c679e362afca7aca9d3dc63a0f45ed <3c805fce07c9dbc47d8a9129c7c5458025951957; version=c503e63200c679e362afca7aca9d3dc63a0f45ed <fadead80fe4c033b5e514fcbadd20b55c4494112

Published CVSS scores

8.8kernel.orgCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
4.7NIST NVDCVSS: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-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
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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