7.8

CVE-2026-9034

Mali GPU Userspace Driver allows access to already freed memory

Use After Free vulnerability in Arm Ltd Bifrost GPU Userspace Driver, Arm Ltd Valhall GPU Userspace Driver, Arm Ltd Arm 5th Gen GPU Architecture Userspace Driver allows a non-privileged user process to perform valid GPU processing operations, including via WebGL or WebGPU, to access already freed memory.



This issue affects Bifrost GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r51p0, from r54p1 through r54p3; Valhall GPU Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0; Arm 5th Gen GPU Architecture Userspace Driver: from r42p0 through r49p5, from r50p0 through r54p3, r55p0.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerArm Ltd
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Produkt Bifrost GPU Userspace Driver
Default Statusunaffected
Version <= r49p5
Version r42p0
Status affected
Version <= r51p0
Version r50p0
Status affected
Version <= r54p3
Version r54p1
Status affected
HerstellerArm Ltd
≫
Produkt Valhall GPU Userspace Driver
Default Statusunaffected
Version <= r49p5
Version r42p0
Status affected
Version <= r54p3
Version r50p0
Status affected
Version r55p0
Status affected
Version r56p0
Status unaffected
HerstellerArm Ltd
≫
Produkt Arm 5th Gen GPU Architecture Userspace Driver
Default Statusunaffected
Version <= r49p5
Version r42p0
Status affected
Version <= r54p3
Version r50p0
Status affected
Version r55p0
Status affected
Version r56p0
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.14% 0.036
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
CISA-ADP 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://support.arm.com/documentation/111552/1-0/?lang=en