Detections
Analytics
CVE-2024-46774
medium
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-supplied buffer and are used as indexes into a small stack-based array and as inputs to copy_to_user() after they are subject to bounds checks. Use array_index_nospec() after the bounds checks to clamp these values for speculative execution.
References
https://git.kernel.org/stable/c/68d8156480940b79227d58865ec5d2947b9384a8
https://git.kernel.org/stable/c/0974d03eb479384466d828d65637814bee6b26d7