CVE-2026-43182

Local system crash via unchecked scaler denominator

Published May 6, 2026 · Updated May 6, 2026

Divide-by-zero in the CCS media driver in affected Linux Kernel releases allows local users to crash the system during scaler configuration. The ccs_set_compose_scaler function calculates maximum M by dividing the sink crop width and minimum scaling numerator by MIN_X_OUTPUT_SIZE without checking whether that limit is zero. Reachability requires a CCS-compatible sensor whose limit register reports zero and local access sufficient to request scaling; the resulting kernel fault interrupts the host.

CVSS severity5.5
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Divide-by-zero in the CCS media driver in affected Linux Kernel releases allows local users to crash the system during scaler configuration. The ccs_set_compose_scaler function calculates maximum M by dividing the sink crop width and minimum scaling numerator by MIN_X_OUTPUT_SIZE without checking whether that limit is zero. Reachability requires a CCS-compatible sensor whose limit register reports zero and local access sufficient to request scaling; the resulting kernel fault interrupts the host.

The record

CVE
CVE-2026-43182
Published
May 6, 2026
Updated
May 6, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-369, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 6, 2026CVE publishedPublication date reported by the CVE source.
  2. May 6, 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=3.5
  2. Affected versionversion=ccfc97bdb5ae8b8edc55169ac6924e08449836ac <32a21ed2ad743fe2d12af48e627089b921a032c2
  3. Affected versionversion=ccfc97bdb5ae8b8edc55169ac6924e08449836ac <679f0b7b6a409750a25754c8833e268e5fdde742
  4. Affected versionversion=ccfc97bdb5ae8b8edc55169ac6924e08449836ac <8ca7df18e7a58a0e5b0ed9eaaa34e16fc5cb9680
  5. Affected versionversion=ccfc97bdb5ae8b8edc55169ac6924e08449836ac <9aae0f31d37a8facd25e37c0f0709ea08de83802
  6. Affected versionversion=ccfc97bdb5ae8b8edc55169ac6924e08449836ac <a8ff58cc8c7514c278ba0ea2c787d4bf9eeb355d
  7. Affected versionversion=ccfc97bdb5ae8b8edc55169ac6924e08449836ac <b6e0529c300e44153fc6f3b565e28163caf1f031
  8. Affected versionversion=ccfc97bdb5ae8b8edc55169ac6924e08449836ac <c9af1818387f5c6f543e2e02c40b3038eae86be8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=3.5; version=ccfc97bdb5ae8b8edc55169ac6924e08449836ac <32a21ed2ad743fe2d12af48e627089b921a032c2; version=ccfc97bdb5ae8b8edc55169ac6924e08449836ac <679f0b7b6a409750a25754c8833e268e5fdde742; version=ccfc97bdb5ae8b8edc55169ac6924e08449836ac <8ca7df18e7a58a0e5b0ed9eaaa34e16fc5cb9680; version=ccfc97bdb5ae8b8edc55169ac6924e08449836ac <9aae0f31d37a8facd25e37c0f0709ea08de83802; version=ccfc97bdb5ae8b8edc55169ac6924e08449836ac <a8ff58cc8c7514c278ba0ea2c787d4bf9eeb355d; version=ccfc97bdb5ae8b8edc55169ac6924e08449836ac <b6e0529c300e44153fc6f3b565e28163caf1f031; version=ccfc97bdb5ae8b8edc55169ac6924e08449836ac <c9af1818387f5c6f543e2e02c40b3038eae86be8

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

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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-369Divide By Zero
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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