CVE-2024-49896

Local kernel crash via unchecked stream pointer

Published Oct 21, 2024 · Updated May 11, 2026

NULL pointer dereference in the Linux AMD display subsystem allows local users to crash the kernel during display-state processing. The amdgpu_dm path can pass a null stream to dc_is_stream_unchanged, which dereferences it before checking whether the pointer is valid. Reachability requires low-privileged local access and an AMD GPU using Display Core; the bounded consequence is a kernel crash and service interrupt.

CVSS severity5.5
Medium
EPSS probability0.26%
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 the Linux AMD display subsystem allows local users to crash the kernel during display-state processing. The amdgpu_dm path can pass a null stream to dc_is_stream_unchanged, which dereferences it before checking whether the pointer is valid. Reachability requires low-privileged local access and an AMD GPU using Display Core; the bounded consequence is a kernel crash and service interrupt.

The record

CVE
CVE-2024-49896
Published
Oct 21, 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. Oct 21, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.15
  2. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <0167d570f6a0b38689c4a0e50bf79c518d827500
  3. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <14db8692afe1aa2143b673856bb603713d8ea93f
  4. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <35ff747c86767937ee1e0ca987545b7eed7a0810
  5. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <3944d226f55235a960d8f1135927f95e9801be12
  6. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <42d31a33643813cce55ee1ebbad3a2d0d24a08e0
  7. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <471c53350ab83e47a2a117c2738ce0363785976e
  8. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <5b4b13e678b15975055f4ff1ce4cf0ce4c19b6c4
  9. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <e41a291e1bef1153bba091b6580ecc7affc53c82
  10. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <e8da54b7f8a17e44e67ea6d1037f35450af28115

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.15; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <0167d570f6a0b38689c4a0e50bf79c518d827500; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <14db8692afe1aa2143b673856bb603713d8ea93f; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <35ff747c86767937ee1e0ca987545b7eed7a0810; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <3944d226f55235a960d8f1135927f95e9801be12; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <42d31a33643813cce55ee1ebbad3a2d0d24a08e0; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <471c53350ab83e47a2a117c2738ce0363785976e; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <5b4b13e678b15975055f4ff1ce4cf0ce4c19b6c4; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <e41a291e1bef1153bba091b6580ecc7affc53c82; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <e8da54b7f8a17e44e67ea6d1037f35450af28115

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.

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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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