CVE-2024-46724

Kernel memory disclosure via unchecked channel index

Published Sep 18, 2024 · Updated May 11, 2026

Out-of-bounds read in the Linux kernel AMDGPU driver allows local users to disclose kernel memory or crash the system. The df_v1_7_get_hbm_channel_number function uses the framebuffer-channel value read from an AMD Data Fabric register as an index into df_v1_7_channel_number without first checking the array bound. Reachability requires local low-privileged access and affected AMD GPU hardware using the DF v1.7 path; the consequence is limited to memory disclosure or system interruption.

CVSS severity7.1
High
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

Out-of-bounds read in the Linux kernel AMDGPU driver allows local users to disclose kernel memory or crash the system. The df_v1_7_get_hbm_channel_number function uses the framebuffer-channel value read from an AMD Data Fabric register as an index into df_v1_7_channel_number without first checking the array bound. Reachability requires local low-privileged access and affected AMD GPU hardware using the DF v1.7 path; the consequence is limited to memory disclosure or system interruption.

The record

CVE
CVE-2024-46724
Published
Sep 18, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-125
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=4.2
  2. Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <32915dc909ff502823babfe07d5416c5b6e8a8b1
  3. Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <45f7b02afc464c208e8f56bcbc672ef5c364c815
  4. Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <725b728cc0c8c5fafdfb51cb0937870d33a40fa4
  5. Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <d768394fa99467bcf2703bde74ddc96eeb0b71fa
  6. Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <db7a86676fd624768a5d907faf34ad7bb4ff25f4
  7. Affected versionversion=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <f9267972490f9fcffe146e79828e97acc0da588c

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.2; version=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <32915dc909ff502823babfe07d5416c5b6e8a8b1; version=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <45f7b02afc464c208e8f56bcbc672ef5c364c815; version=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <725b728cc0c8c5fafdfb51cb0937870d33a40fa4; version=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <d768394fa99467bcf2703bde74ddc96eeb0b71fa; version=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <db7a86676fd624768a5d907faf34ad7bb4ff25f4; version=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <f9267972490f9fcffe146e79828e97acc0da588c

Published CVSS scores

7.1OracleCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/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

CWE-125Out-of-bounds Read

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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