CVE-2024-46810

System crash via premature hot-plug event

Published Sep 27, 2024 · Updated May 11, 2026

A NULL pointer dereference in the Linux tc358767 bridge driver allows local users to crash affected systems via an HPD IRQ. The tc_irq_handler calls drm_kms_helper_hotplug_event when bridge.dev exists but before aux.drm_dev confirms that connector initialization has completed. Reachability requires a configured Toshiba TC358767-family display bridge with an HPD pin and an interrupt arriving during this initialization window; the resulting impact is an availability-only system crash.

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

A NULL pointer dereference in the Linux tc358767 bridge driver allows local users to crash affected systems via an HPD IRQ. The tc_irq_handler calls drm_kms_helper_hotplug_event when bridge.dev exists but before aux.drm_dev confirms that connector initialization has completed. Reachability requires a configured Toshiba TC358767-family display bridge with an HPD pin and an interrupt arriving during this initialization window; the resulting impact is an availability-only system crash.

The record

CVE
CVE-2024-46810
Published
Sep 27, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 27, 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=5.3
  2. Affected versionversion=f25ee5017e4fe520dbef1a001d60e3a678846508 <162e48cb1d84c2c966b649b8ac5c9d4f75f6d44f
  3. Affected versionversion=f25ee5017e4fe520dbef1a001d60e3a678846508 <1fb13693953737783b424aa4712f0a27a9eaf5a8
  4. Affected versionversion=f25ee5017e4fe520dbef1a001d60e3a678846508 <9d567126474e68f959b2c2543c375f3bb32e948a
  5. Affected versionversion=f25ee5017e4fe520dbef1a001d60e3a678846508 <adc5674c23b8191e596ed0dbaa9600265ac896a8
  6. Affected versionversion=f25ee5017e4fe520dbef1a001d60e3a678846508 <e1b121f21bbc56a6ae035aa5b77daac62bfb9be5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.3; version=f25ee5017e4fe520dbef1a001d60e3a678846508 <162e48cb1d84c2c966b649b8ac5c9d4f75f6d44f; version=f25ee5017e4fe520dbef1a001d60e3a678846508 <1fb13693953737783b424aa4712f0a27a9eaf5a8; version=f25ee5017e4fe520dbef1a001d60e3a678846508 <9d567126474e68f959b2c2543c375f3bb32e948a; version=f25ee5017e4fe520dbef1a001d60e3a678846508 <adc5674c23b8191e596ed0dbaa9600265ac896a8; version=f25ee5017e4fe520dbef1a001d60e3a678846508 <e1b121f21bbc56a6ae035aa5b77daac62bfb9be5

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 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-476NULL Pointer Dereference

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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