A GPU kernel can read sensitive data from another GPU kernel (even from another user or app) through an optimized GPU memory region called _local memory_ on various architectures.
https://www.kb.cert.org/vuls/id/446598
https://kb.cert.org/vuls/id/446598
https://www.theregister.com/2025/04/08/patch_tuesday_microsoft/
https://registry.khronos.org/vulkan/specs/1.3-extensions/html/index.html
https://registry.khronos.org/OpenCL/specs/3.0-unified/html/OpenCL_API.html#_fundamental_memory_regions
https://blog.trailofbits.com
Source: Mitre, NVD
Published: 2024-01-16
Updated: 2024-01-23
Named Vulnerability: LeftoverLocals
Base Score: 4.6
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:N/A:N
Severity: Medium
Base Score: 6.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
EPSS: 0.0016