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cve/2024/CVE-2024-46774.md
0xMarcio 1fb02038e8 Update CVE sources 2025-09-29 16:08
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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.

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