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CVE-2024-46774

Description

In the Linux kernel, the following vulnerability has been resolved:powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas()Smatch warns: arch/powerpc/kernel/rtas.c:1932 __do_sys_rtas() warn: potential spectre issue 'args.args' [r] (local cap)The 'nargs' and 'nret' locals come directly from a user-suppliedbuffer and are used as indexes into a small stack-based array and asinputs to copy_to_user() after they are subject to bounds checks.Use array_index_nospec() after the bounds checks to clamp these valuesfor speculative execution.

POC

Reference

No PoCs from references.

Github

- https://github.com/bygregonline/devsec-fastapi-report

- https://github.com/fkie-cad/nvd-json-data-feeds

- https://github.com/runwhen-contrib/helm-charts

- https://github.com/w4zu/Debian_security