CVE-2020-36786

Local service interruption via LM3554 flash-object leak

Published Feb 28, 2024 · Updated May 11, 2026

Memory leak in the Linux kernel AtomISP LM3554 driver allows local users to cause a service interrupt through resource exhaustion. The LM3554 initialization error path returns without freeing the allocated flash object when lm3554_platform_data_func reports an error. Reachability requires the affected AtomISP LM3554 driver and a failing platform-data callback; the resulting leak affects availability only.

CVSS severity5.5
Medium
EPSS probability0.22%
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 AtomISP LM3554 driver allows local users to cause a service interrupt through resource exhaustion. The LM3554 initialization error path returns without freeing the allocated flash object when lm3554_platform_data_func reports an error. Reachability requires the affected AtomISP LM3554 driver and a failing platform-data callback; the resulting leak affects availability only.

The record

CVE
CVE-2020-36786
Published
Feb 28, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 28, 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=5.10
  2. Affected versionversion=9289cdf399922a1bd801a8cd946a79581c00a380 <27d2eab69f7da8e94e4751ac5c6d22d809275484
  3. Affected versionversion=9289cdf399922a1bd801a8cd946a79581c00a380 <4f0f37d03cde8f4341df8454f9b40a67fda94a33
  4. Affected versionversion=9289cdf399922a1bd801a8cd946a79581c00a380 <6045b01dd0e3cd3759eafe7f290ed04c957500b1
  5. Affected versionversion=9289cdf399922a1bd801a8cd946a79581c00a380 <cc4cc2fb5aaf9adb83c02211eb13b16cfcb7ba64

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.10; version=9289cdf399922a1bd801a8cd946a79581c00a380 <27d2eab69f7da8e94e4751ac5c6d22d809275484; version=9289cdf399922a1bd801a8cd946a79581c00a380 <4f0f37d03cde8f4341df8454f9b40a67fda94a33; version=9289cdf399922a1bd801a8cd946a79581c00a380 <6045b01dd0e3cd3759eafe7f290ed04c957500b1; version=9289cdf399922a1bd801a8cd946a79581c00a380 <cc4cc2fb5aaf9adb83c02211eb13b16cfcb7ba64

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 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-401Missing Release of Memory after Effective Lifetime
T1499.004Endpoint Denial of Service: Application 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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