CVE-2024-46705

Kernel compromise via stale MMIO mappings

Published Sep 13, 2024 · Updated Aug 5, 2026

Use-after-unmap in Linux 6.8 through 6.10.6 allows local users to compromise the kernel through drm/xe render-node access. During device removal, drm/xe unmaps MMIO and GGTT regions but leaves mapping pointers live, so ioctl and worker paths can read or write through recycled mappings. Access to an Xe render node and a removal event are required; exploitation can disclose data, corrupt another device, or panic the host.

CVSS severity7.8
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-unmap in Linux 6.8 through 6.10.6 allows local users to compromise the kernel through drm/xe render-node access. During device removal, drm/xe unmaps MMIO and GGTT regions but leaves mapping pointers live, so ioctl and worker paths can read or write through recycled mappings. Access to an Xe render node and a removal event are required; exploitation can disclose data, corrupt another device, or panic the host.

The record

CVE
CVE-2024-46705
Published
Sep 13, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=dd08ebf6c3525a7ea2186e636df064ea47281987 <b1c9fbed3884d3883021d699c7cdf5253a65543a
  3. Affected versionversion=dd08ebf6c3525a7ea2186e636df064ea47281987 <c7117419784f612d59ee565145f722e8b5541fe6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.8; version=dd08ebf6c3525a7ea2186e636df064ea47281987 <b1c9fbed3884d3883021d699c7cdf5253a65543a; version=dd08ebf6c3525a7ea2186e636df064ea47281987 <c7117419784f612d59ee565145f722e8b5541fe6

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8Linux kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 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-476NULL Pointer Dereference
T1068Exploitation for Privilege Escalation

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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