CVE-2022-48794

Service interruption via transmit-error skb leak

Published Jul 16, 2024 · Updated May 11, 2026

Memory leakage in the Linux kernel at86rf230 driver from 3.19 allows local users to exhaust memory through failed transmissions. In drivers/net/ieee802154/at86rf230.c, transmit-error paths wake the IEEE 802.15.4 queue without calling ieee802154_xmit_complete(), leaving the associated skb allocated. Exploitation requires low-privileged local access and an AT86RF230-family radio using the affected driver; repeated errors can consume kernel memory and interrupt service.

CVSS severity5.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory leakage in the Linux kernel at86rf230 driver from 3.19 allows local users to exhaust memory through failed transmissions. In drivers/net/ieee802154/at86rf230.c, transmit-error paths wake the IEEE 802.15.4 queue without calling ieee802154_xmit_complete(), leaving the associated skb allocated. Exploitation requires low-privileged local access and an AT86RF230-family radio using the affected driver; repeated errors can consume kernel memory and interrupt service.

The record

CVE
CVE-2022-48794
Published
Jul 16, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499
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=3.19
  2. Affected versionversion=955aee8b5c69594b9fb38a4f65e77db343b43a38 <0fd484644c68897c490a3307bfcc8bf767df5a43
  3. Affected versionversion=955aee8b5c69594b9fb38a4f65e77db343b43a38 <1c72f04d52b7200bb83426a9bed378668271ea4a
  4. Affected versionversion=955aee8b5c69594b9fb38a4f65e77db343b43a38 <23b2a25382400168427ea278f3d8bf4ecfd333bf
  5. Affected versionversion=955aee8b5c69594b9fb38a4f65e77db343b43a38 <455ef08d6e5473526fa6763f75a93f7198206966
  6. Affected versionversion=955aee8b5c69594b9fb38a4f65e77db343b43a38 <6312f6a53fd3ea38125dcaca5e3c9aa7d8a60cf7
  7. Affected versionversion=955aee8b5c69594b9fb38a4f65e77db343b43a38 <af649e5c95f56df64363bc46f6746b87819f9c0d
  8. Affected versionversion=955aee8b5c69594b9fb38a4f65e77db343b43a38 <d2a1eaf51b7d4412319adb6acef114ba472d1692
  9. Affected versionversion=955aee8b5c69594b9fb38a4f65e77db343b43a38 <e5ce576d45bf72fd0e3dc37eff897bfcc488f6a9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.19; version=955aee8b5c69594b9fb38a4f65e77db343b43a38 <0fd484644c68897c490a3307bfcc8bf767df5a43; version=955aee8b5c69594b9fb38a4f65e77db343b43a38 <1c72f04d52b7200bb83426a9bed378668271ea4a; version=955aee8b5c69594b9fb38a4f65e77db343b43a38 <23b2a25382400168427ea278f3d8bf4ecfd333bf; version=955aee8b5c69594b9fb38a4f65e77db343b43a38 <455ef08d6e5473526fa6763f75a93f7198206966; version=955aee8b5c69594b9fb38a4f65e77db343b43a38 <6312f6a53fd3ea38125dcaca5e3c9aa7d8a60cf7; version=955aee8b5c69594b9fb38a4f65e77db343b43a38 <af649e5c95f56df64363bc46f6746b87819f9c0d; version=955aee8b5c69594b9fb38a4f65e77db343b43a38 <d2a1eaf51b7d4412319adb6acef114ba472d1692; version=955aee8b5c69594b9fb38a4f65e77db343b43a38 <e5ce576d45bf72fd0e3dc37eff897bfcc488f6a9

Published CVSS scores

5.5NVDCVSS: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-401Missing Release of Memory after Effective Lifetime
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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