CVE-2022-48885

Service interruption via ICE GNSS allocation leak

Published Aug 21, 2024 · Updated May 11, 2026

Memory leak in the Linux kernel ICE GNSS TTY write path allows local users to exhaust kernel memory through repeated writes. ice_gnss_tty_write allocates cmd_buf, then returns without freeing it when the subsequent write_buf allocation fails. Reachability requires write access to an ICE GNSS TTY and memory pressure that makes the second allocation fail; repeated failures can interrupt service.

CVSS severity5.5
Medium
EPSS probability0.21%
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 ICE GNSS TTY write path allows local users to exhaust kernel memory through repeated writes. ice_gnss_tty_write allocates cmd_buf, then returns without freeing it when the subsequent write_buf allocation fails. Reachability requires write access to an ICE GNSS TTY and memory pressure that makes the second allocation fail; repeated failures can interrupt service.

The record

CVE
CVE-2022-48885
Published
Aug 21, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 21, 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=6.0
  2. Affected versionversion=d6b98c8d242aee40e7b8919dd07b593b0739e38d <500ca1da9d0876244eb4d1b0ece6fa0e9968d45d
  3. Affected versionversion=d6b98c8d242aee40e7b8919dd07b593b0739e38d <f58985620f55580a07d40062c4115d8c9cf6ae27

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=6.0; version=d6b98c8d242aee40e7b8919dd07b593b0739e38d <500ca1da9d0876244eb4d1b0ece6fa0e9968d45d; version=d6b98c8d242aee40e7b8919dd07b593b0739e38d <f58985620f55580a07d40062c4115d8c9cf6ae27

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
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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