CVE-2023-53177

Service interruption via runtime-PM reference underflow

Published Sep 15, 2025 · Updated Sep 15, 2025

Reference-count underflow in the hi846 camera driver in affected Linux kernels allows local users to interrupt service during system resume. The hi846 control path treats a negative -EAGAIN return from pm_runtime_get_if_in_use() as success and calls pm_runtime_put(), underflowing the usage counter. The condition requires local access, the hi846 driver, and system resume; the documented impact is availability loss without data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reference-count underflow in the hi846 camera driver in affected Linux kernels allows local users to interrupt service during system resume. The hi846 control path treats a negative -EAGAIN return from pm_runtime_get_if_in_use() as success and calls pm_runtime_put(), underflowing the usage counter. The condition requires local access, the hi846 driver, and system resume; the documented impact is availability loss without data disclosure or modification.

The record

CVE
CVE-2023-53177
Published
Sep 15, 2025
Updated
Sep 15, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 2025Record 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=e8c0882685f9152f0d729664a12bcbe749cb7736 <04fc06f6dc1592ed5d675311ac50d8fba5db62ab
  3. Affected versionversion=e8c0882685f9152f0d729664a12bcbe749cb7736 <42ec6269f98edd915ee37da3c6456bb6243ea56a
  4. Affected versionversion=e8c0882685f9152f0d729664a12bcbe749cb7736 <c5dcd7a19f1ed8fe98384f3a9444c7c53befd74e

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.16; version=e8c0882685f9152f0d729664a12bcbe749cb7736 <04fc06f6dc1592ed5d675311ac50d8fba5db62ab; version=e8c0882685f9152f0d729664a12bcbe749cb7736 <42ec6269f98edd915ee37da3c6456bb6243ea56a; version=e8c0882685f9152f0d729664a12bcbe749cb7736 <c5dcd7a19f1ed8fe98384f3a9444c7c53befd74e

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

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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