CVE-2022-48841

Kernel crash via null transmit-ring dereference

Published Jul 16, 2024 · Updated May 11, 2026

NULL pointer dereference in the ice driver in Linux kernel 5.16 allows local users to crash the system during transmit-statistics updates. The ice_update_vsi_tx_ring_stats function validates a transmit-ring pointer before reading counters but later dereferences the same null pointer while adding those counters to VSI statistics. Exploitation requires low-privileged local access and an active ice driver for Intel E800-series hardware; the bounded consequence is a kernel crash.

CVSS severity5.5
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the ice driver in Linux kernel 5.16 allows local users to crash the system during transmit-statistics updates. The ice_update_vsi_tx_ring_stats function validates a transmit-ring pointer before reading counters but later dereferences the same null pointer while adding those counters to VSI statistics. Exploitation requires low-privileged local access and an active ice driver for Intel E800-series hardware; the bounded consequence is a kernel crash.

The record

CVE
CVE-2022-48841
Published
Jul 16, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 16, 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=5.16
  2. Affected versionversion=e72bba21355dbb67512a0d666fec9f4b56dbfc2f <2397270ec97c5e3009a58ac110a25e1869e9d6ff
  3. Affected versionversion=e72bba21355dbb67512a0d666fec9f4b56dbfc2f <f153546913bada41a811722f2c6d17c3243a0333

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.16; version=e72bba21355dbb67512a0d666fec9f4b56dbfc2f <2397270ec97c5e3009a58ac110a25e1869e9d6ff; version=e72bba21355dbb67512a0d666fec9f4b56dbfc2f <f153546913bada41a811722f2c6d17c3243a0333

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-476NULL Pointer Dereference
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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