Out-of-bounds read in Linux kernel msm adreno driver



| Updated: 2025-05-14
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-47535
CWE-ID CWE-125
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU90275

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-47535

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to an out-of-bounds read error within the a6xx_get_gmu_registers() function in drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.10 - 5.16 rc8

CPE2.3 External links

https://git.kernel.org/stable/c/d646856a600e8635ba498f20b194219b158626e8
https://git.kernel.org/stable/c/83e54fcf0b14ca2d869dd37abe1bb6542805f538
https://git.kernel.org/stable/c/b4d25abf9720b69a03465b09d0d62d1998ed6708
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.84
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.7
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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