CVE-2024-46793

System crash via zero-length codec-array dereference

Published Sep 18, 2024 · Updated May 11, 2026

NULL pointer dereference in Linux kernel 6.8 through 6.10.9 allows local users to crash systems during affected Intel ASoC driver probing. The board setup code dereferences dais[i].codecs->name even when num_codecs is zero, so the pointer addresses an adjacent data-section object and can reach strcmp with an invalid address. Reachability requires an affected Intel BYT or CHT audio board driver to probe; the resulting page fault interrupts availability without reported data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in Linux kernel 6.8 through 6.10.9 allows local users to crash systems during affected Intel ASoC driver probing. The board setup code dereferences dais[i].codecs->name even when num_codecs is zero, so the pointer addresses an adjacent data-section object and can reach strcmp with an invalid address. Reachability requires an affected Intel BYT or CHT audio board driver to probe; the resulting page fault interrupts availability without reported data disclosure or modification.

The record

CVE
CVE-2024-46793
Published
Sep 18, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 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=6.8
  2. Affected versionversion=7d99a70b65951108d82e1618c67abe69c3ed7720 <0cc65482f5b03ac2b1c240bc34665e43ea2d71bb
  3. Affected versionversion=7d99a70b65951108d82e1618c67abe69c3ed7720 <85cda5b040bda9c577b34eb72d5b2e5b7e31985c

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.8; version=7d99a70b65951108d82e1618c67abe69c3ed7720 <0cc65482f5b03ac2b1c240bc34665e43ea2d71bb; version=7d99a70b65951108d82e1618c67abe69c3ed7720 <85cda5b040bda9c577b34eb72d5b2e5b7e31985c

Published CVSS scores

5.5NISTCVSS: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-476NULL Pointer Dereference
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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