CVE-2024-39497Public exploit

Kernel panic via unchecked private writable mapping

Published Jul 12, 2024 · Updated May 11, 2026

Reachable assertion in the Linux kernel 5.2 through 6.10-rc1 allows local users to panic the kernel via a private writable DRM shmem mapping. drm_gem_shmem_mmap fails to reject a copy-on-write mapping, so a subsequent write reaches the BUG_ON in vmf_insert_pfn_prot. Exploitation requires access to a DRM driver using the default shmem helpers and causes a system-wide kernel crash without reported data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reachable assertion in the Linux kernel 5.2 through 6.10-rc1 allows local users to panic the kernel via a private writable DRM shmem mapping. drm_gem_shmem_mmap fails to reject a copy-on-write mapping, so a subsequent write reaches the BUG_ON in vmf_insert_pfn_prot. Exploitation requires access to a DRM driver using the default shmem helpers and causes a system-wide kernel crash without reported data disclosure or modification.

The record

CVE
CVE-2024-39497
Published
Jul 12, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-617, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 12, 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=2194a63a818db71065ebe09c8104f5f021ca4e7b <03c71c42809ef4b17f5d874cdb2d3bf40e847b86
  2. Affected versionversion=2194a63a818db71065ebe09c8104f5f021ca4e7b <1b4a8b89bf6787090b56424d269bf84ba00c3263
  3. Affected versionversion=2194a63a818db71065ebe09c8104f5f021ca4e7b <2219e5f97244b79c276751a1167615b9714db1b0
  4. Affected versionversion=2194a63a818db71065ebe09c8104f5f021ca4e7b <39bc27bd688066a63e56f7f64ad34fae03fbe3b8
  5. Affected versionversion=2194a63a818db71065ebe09c8104f5f021ca4e7b <3ae63a8c1685e16958560ec08d30defdc5b9cca0
  6. Affected versionversion=2194a63a818db71065ebe09c8104f5f021ca4e7b <a508a102edf8735adc9bb73d37dd13c38d1a1b10
  7. Affected versionversion=5.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2194a63a818db71065ebe09c8104f5f021ca4e7b <03c71c42809ef4b17f5d874cdb2d3bf40e847b86; version=2194a63a818db71065ebe09c8104f5f021ca4e7b <1b4a8b89bf6787090b56424d269bf84ba00c3263; version=2194a63a818db71065ebe09c8104f5f021ca4e7b <2219e5f97244b79c276751a1167615b9714db1b0; version=2194a63a818db71065ebe09c8104f5f021ca4e7b <39bc27bd688066a63e56f7f64ad34fae03fbe3b8; version=2194a63a818db71065ebe09c8104f5f021ca4e7b <3ae63a8c1685e16958560ec08d30defdc5b9cca0; version=2194a63a818db71065ebe09c8104f5f021ca4e7b <a508a102edf8735adc9bb73d37dd13c38d1a1b10; version=5.2

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.4OracleCVSS:3.1/AV:L/AC:L/PR:H/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 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 exploitPublished

Weakness, pattern, technique

CWE-617Reachable Assertion
T1499Endpoint Denial of Service

Public exploit references

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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