CVE-2022-50417

In the Linux kernel, the following vulnerability has been resolved: drm/panfrost: Fix GEM handle creation ref-counting panfrost_gem_create_with_handle() previously returned a BO but with the only reference being from the handle, which user space could in theory guess and release, causing a use-after-free. Additionally if the call to panfrost_gem_mapping_get() in panfrost_ioctl_create_bo() failed then a(nother) reference on the BO was dropped. The _create_with_handle() is a problematic pattern, so ditch it and instead create the handle in panfrost_ioctl_create_bo(). If the call to panfrost_gem_mapping_get() fails then this means that user space has indeed gone behind our back and freed the handle. In which case just return an error code.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/0b70f6ea4d4f2b4d4b291d86ab76b4d07394932c	Patch
https://git.kernel.org/stable/c/3f9feffa8a5ab08b4e298a27b1aa7204a7d42ca2	Patch
https://git.kernel.org/stable/c/4217c6ac817451d5116687f3cc6286220dc43d49	Patch
https://git.kernel.org/stable/c/4f1105ee72d8c7c35d90e3491b31b2d9d6b7e33a	Patch
https://git.kernel.org/stable/c/ba3d2c2380e7129b525a787489c0b7e819a3b898	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.2:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.2:rc2::::::

History

No history.

Information

Published : 2025-09-18 16:15

Updated : 2026-01-14 20:15

NVD link : CVE-2022-50417

Mitre link : CVE-2022-50417

CVE.ORG link : CVE-2022-50417

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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